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December 5, 2025 10:50
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Solution draft log for https://github.com/andchir/video-timeline/pull/113
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| # Solve.mjs Log - 2025-12-05T10:33:56.108Z | |
| [2025-12-05T10:33:56.134Z] [INFO] 📁 Log file: /home/hive/solve-2025-12-05T10-33-56-107Z.log | |
| [2025-12-05T10:33:56.154Z] [INFO] (All output will be logged here) | |
| [2025-12-05T10:34:01.440Z] [INFO] | |
| [2025-12-05T10:34:01.454Z] [INFO] 🚀 solve v0.36.11 | |
| [2025-12-05T10:34:01.464Z] [INFO] 🔧 Raw command executed: | |
| [2025-12-05T10:34:01.474Z] [INFO] /home/hive/.nvm/versions/node/v20.19.6/bin/node /home/hive/.bun/bin/solve https://github.com/andchir/video-timeline/issues/112 --model opus --auto-fork --auto-continue --attach-logs --verbose --no-tool-check --prefix-fork-name-with-owner-name | |
| [2025-12-05T10:34:01.479Z] [INFO] | |
| [2025-12-05T10:34:01.641Z] [INFO] | |
| [2025-12-05T10:34:01.649Z] [WARNING] ⚠️ SECURITY WARNING: --attach-logs is ENABLED | |
| [2025-12-05T10:34:01.656Z] [INFO] | |
| [2025-12-05T10:34:01.665Z] [INFO] This option will upload the complete solution draft log file to the Pull Request. | |
| [2025-12-05T10:34:01.669Z] [INFO] The log may contain sensitive information such as: | |
| [2025-12-05T10:34:01.670Z] [INFO] • API keys, tokens, or secrets | |
| [2025-12-05T10:34:01.678Z] [INFO] • File paths and directory structures | |
| [2025-12-05T10:34:01.684Z] [INFO] • Command outputs and error messages | |
| [2025-12-05T10:34:01.687Z] [INFO] • Internal system information | |
| [2025-12-05T10:34:01.690Z] [INFO] | |
| [2025-12-05T10:34:01.693Z] [INFO] ⚠️ DO NOT use this option with public repositories or if the log | |
| [2025-12-05T10:34:01.697Z] [INFO] might contain sensitive data that should not be shared publicly. | |
| [2025-12-05T10:34:01.698Z] [INFO] | |
| [2025-12-05T10:34:01.700Z] [INFO] Continuing in 5 seconds... (Press Ctrl+C to abort) | |
| [2025-12-05T10:34:01.701Z] [INFO] | |
| [2025-12-05T10:34:06.738Z] [INFO] | |
| [2025-12-05T10:34:07.002Z] [INFO] 💾 Disk space check: 62811MB available (500MB required) ✅ | |
| [2025-12-05T10:34:07.026Z] [INFO] 🧠 Memory check: 4470MB available, swap: 2047MB (2047MB used), total: 4470MB (256MB required) ✅ | |
| [2025-12-05T10:34:07.026Z] [INFO] ⏩ Skipping tool connection validation (dry-run mode or skip-tool-connection-check enabled) | |
| [2025-12-05T10:34:07.031Z] [INFO] ⏩ Skipping GitHub authentication check (dry-run mode or skip-tool-connection-check enabled) | |
| [2025-12-05T10:34:07.036Z] [INFO] 📋 URL validation: | |
| [2025-12-05T10:34:07.036Z] [INFO] Input URL: https://github.com/andchir/video-timeline/issues/112 | |
| [2025-12-05T10:34:07.036Z] [INFO] Is Issue URL: true | |
| [2025-12-05T10:34:07.037Z] [INFO] Is PR URL: false | |
| [2025-12-05T10:34:07.045Z] [INFO] 🔍 Checking repository access for auto-fork... | |
| [2025-12-05T10:34:09.415Z] [INFO] Repository visibility: public | |
| [2025-12-05T10:34:09.428Z] [INFO] ✅ Auto-fork: No write access detected, enabling fork mode | |
| [2025-12-05T10:34:09.435Z] [INFO] ✅ Repository access check: Skipped (fork mode enabled) | |
| [2025-12-05T10:34:10.855Z] [INFO] Repository visibility: public | |
| [2025-12-05T10:34:10.865Z] [INFO] Auto-cleanup default: false (repository is public) | |
| [2025-12-05T10:34:10.870Z] [INFO] 🔍 Auto-continue enabled: Checking for existing PRs for issue #112... | |
| [2025-12-05T10:34:13.133Z] [INFO] 🔍 Fork mode: Checking for existing branches in konard/andchir-video-timeline... | |
| [2025-12-05T10:34:15.006Z] [INFO] 📝 No existing PRs found for issue #112 - creating new PR | |
| [2025-12-05T10:34:15.014Z] [INFO] 📝 Issue mode: Working with issue #112 | |
| [2025-12-05T10:34:15.034Z] [INFO] | |
| Creating temporary directory: /tmp/gh-issue-solver-1764930855025 | |
| [2025-12-05T10:34:15.065Z] [INFO] | |
| 🍴 Fork mode: ENABLED | |
| [2025-12-05T10:34:15.076Z] [INFO] Checking fork status... | |
| [2025-12-05T10:34:15.990Z] [INFO] 🔍 Detecting fork conflicts... | |
| [2025-12-05T10:34:19.180Z] [INFO] ✅ No fork conflict: Safe to proceed | |
| [2025-12-05T10:34:19.950Z] [INFO] ✅ Fork exists: konard/andchir-video-timeline | |
| [2025-12-05T10:34:19.968Z] [INFO] | |
| 📥 Cloning repository: konard/andchir-video-timeline | |
| [2025-12-05T10:34:25.887Z] [INFO] ✅ Cloned to: /tmp/gh-issue-solver-1764930855025 | |
| [2025-12-05T10:34:26.152Z] [INFO] 🔗 Setting upstream: andchir/video-timeline | |
| [2025-12-05T10:34:26.337Z] [INFO] ℹ️ Upstream exists: Using existing upstream remote | |
| [2025-12-05T10:34:26.346Z] [INFO] 🔄 Fetching upstream... | |
| [2025-12-05T10:34:27.289Z] [INFO] ✅ Upstream fetched: Successfully | |
| [2025-12-05T10:34:27.304Z] [INFO] 🔄 Syncing default branch... | |
| [2025-12-05T10:34:28.728Z] [INFO] ℹ️ Default branch: main | |
| [2025-12-05T10:34:29.162Z] [INFO] ✅ Default branch synced: with upstream/main | |
| [2025-12-05T10:34:29.171Z] [INFO] 🔄 Pushing to fork: main branch | |
| [2025-12-05T10:34:31.243Z] [INFO] ✅ Fork updated: Default branch pushed to fork | |
| [2025-12-05T10:34:32.338Z] [INFO] | |
| 📌 Default branch: main | |
| [2025-12-05T10:34:32.580Z] [INFO] | |
| 🌿 Creating branch: issue-112-ffe66abe5816 from main | |
| [2025-12-05T10:34:32.850Z] [INFO] 🔍 Verifying: Branch creation... | |
| [2025-12-05T10:34:33.061Z] [INFO] ✅ Branch created: issue-112-ffe66abe5816 | |
| [2025-12-05T10:34:33.069Z] [INFO] ✅ Current branch: issue-112-ffe66abe5816 | |
| [2025-12-05T10:34:33.075Z] [INFO] Branch operation: Create new branch | |
| [2025-12-05T10:34:33.080Z] [INFO] Branch verification: Matches expected | |
| [2025-12-05T10:34:33.118Z] [INFO] | |
| 🚀 Auto PR creation: ENABLED | |
| [2025-12-05T10:34:33.129Z] [INFO] Creating: Initial commit and draft PR... | |
| [2025-12-05T10:34:33.131Z] [INFO] | |
| [2025-12-05T10:34:33.137Z] [INFO] 📝 Creating: CLAUDE.md with task details | |
| [2025-12-05T10:34:33.155Z] [INFO] Issue URL from argv['issue-url']: https://github.com/andchir/video-timeline/issues/112 | |
| [2025-12-05T10:34:33.156Z] [INFO] Issue URL from argv._[0]: undefined | |
| [2025-12-05T10:34:33.164Z] [INFO] Final issue URL: https://github.com/andchir/video-timeline/issues/112 | |
| [2025-12-05T10:34:33.165Z] [INFO] CLAUDE.md already exists, appending task info... | |
| [2025-12-05T10:34:33.175Z] [INFO] ✅ File created: CLAUDE.md | |
| [2025-12-05T10:34:33.175Z] [INFO] 📦 Adding file: To git staging | |
| [2025-12-05T10:34:33.580Z] [INFO] Git status after add: M CLAUDE.md | |
| [2025-12-05T10:34:33.580Z] [INFO] 📝 Creating commit: With CLAUDE.md file | |
| [2025-12-05T10:34:33.814Z] [INFO] ✅ Commit created: Successfully with CLAUDE.md | |
| [2025-12-05T10:34:33.858Z] [INFO] Commit output: [issue-112-ffe66abe5816 19b734a] Initial commit with task details for issue #112 | |
| 1 file changed, 13 insertions(+), 1 deletion(-) | |
| [2025-12-05T10:34:34.301Z] [INFO] Commit hash: 19b734a... | |
| [2025-12-05T10:34:34.409Z] [INFO] Latest commit: 19b734a Initial commit with task details for issue #112 | |
| [2025-12-05T10:34:34.505Z] [INFO] Git status: clean | |
| [2025-12-05T10:34:34.634Z] [INFO] Remotes: origin https://github.com/konard/andchir-video-timeline.git (fetch) | |
| [2025-12-05T10:34:34.790Z] [INFO] Branch info: * issue-112-ffe66abe5816 19b734a Initial commit with task details for issue #112 | |
| main 9fc8184 [origin/main] add media samples | |
| [2025-12-05T10:34:34.798Z] [INFO] 📤 Pushing branch: To remote repository... | |
| [2025-12-05T10:34:34.800Z] [INFO] Push command: git push -u origin issue-112-ffe66abe5816 | |
| [2025-12-05T10:34:37.400Z] [INFO] Push exit code: 0 | |
| [2025-12-05T10:34:37.409Z] [INFO] Push output: remote: | |
| remote: Create a pull request for 'issue-112-ffe66abe5816' on GitHub by visiting: | |
| remote: https://github.com/konard/andchir-video-timeline/pull/new/issue-112-ffe66abe5816 | |
| remote: | |
| To https://github.com/konard/andchir-video-timeline.git | |
| * [new branch] issue-112-ffe66abe5816 -> issue-112-ffe66abe5816 | |
| branch 'issue-112-ffe66abe5816' set up to track 'origin/issue-112-ffe66abe5816'. | |
| [2025-12-05T10:34:37.409Z] [INFO] ✅ Branch pushed: Successfully to remote | |
| [2025-12-05T10:34:37.417Z] [INFO] Push output: remote: | |
| remote: Create a pull request for 'issue-112-ffe66abe5816' on GitHub by visiting: | |
| remote: https://github.com/konard/andchir-video-timeline/pull/new/issue-112-ffe66abe5816 | |
| remote: | |
| To https://github.com/konard/andchir-video-timeline.git | |
| * [new branch] issue-112-ffe66abe5816 -> issue-112-ffe66abe5816 | |
| branch 'issue-112-ffe66abe5816' set up to track 'origin/issue-112-ffe66abe5816'. | |
| [2025-12-05T10:34:37.419Z] [INFO] Waiting for GitHub to sync... | |
| [2025-12-05T10:34:40.859Z] [INFO] Compare API check: 1 commit(s) ahead of main | |
| [2025-12-05T10:34:40.862Z] [INFO] GitHub compare API ready: 1 commit(s) found | |
| [2025-12-05T10:34:41.746Z] [INFO] Branch verified on GitHub: issue-112-ffe66abe5816 | |
| [2025-12-05T10:34:42.659Z] [INFO] Remote commit SHA: 19b734a... | |
| [2025-12-05T10:34:42.666Z] [INFO] 📋 Getting issue: Title from GitHub... | |
| [2025-12-05T10:34:43.517Z] [INFO] Issue title: "Реализовать реальное воспроизведение медиа" | |
| [2025-12-05T10:34:43.522Z] [INFO] 👤 Getting user: Current GitHub account... | |
| [2025-12-05T10:34:44.742Z] [INFO] Current user: konard | |
| [2025-12-05T10:34:46.201Z] [INFO] User is not a collaborator (will skip assignment) | |
| [2025-12-05T10:34:46.274Z] [INFO] User is not a collaborator (will skip assignment) | |
| [2025-12-05T10:34:46.288Z] [INFO] 🔄 Fetching: Latest main branch... | |
| [2025-12-05T10:34:47.536Z] [INFO] ✅ Base updated: Fetched latest main | |
| [2025-12-05T10:34:47.538Z] [INFO] 🔍 Checking: Commits between branches... | |
| [2025-12-05T10:34:47.763Z] [INFO] Commits ahead of origin/main: 1 | |
| [2025-12-05T10:34:47.779Z] [INFO] ✅ Commits found: 1 commit(s) ahead | |
| [2025-12-05T10:34:47.795Z] [INFO] 🔀 Creating PR: Draft pull request... | |
| [2025-12-05T10:34:47.799Z] [INFO] 🎯 Target branch: main (default) | |
| [2025-12-05T10:34:47.809Z] [INFO] PR Title: [WIP] Реализовать реальное воспроизведение медиа | |
| [2025-12-05T10:34:47.813Z] [INFO] Base branch: main | |
| [2025-12-05T10:34:47.821Z] [INFO] Head branch: issue-112-ffe66abe5816 | |
| [2025-12-05T10:34:47.825Z] [INFO] Assignee: konard | |
| [2025-12-05T10:34:47.833Z] [INFO] PR Body: | |
| ## 🤖 AI-Powered Solution Draft | |
| This pull request is being automatically generated to solve issue andchir/video-timeline#112. | |
| ### 📋 Issue Reference | |
| Fixes andchir/video-timeline#112 | |
| ### 🚧 Status | |
| **Work in Progress** - The AI assistant is currently analyzing and implementing the solution draft. | |
| ### 📝 Implementation Details | |
| _Details will be added as the solution draft is developed..._ | |
| --- | |
| *This PR was created automatically by the AI issue solver* | |
| [2025-12-05T10:34:47.872Z] [INFO] Command: cd "/tmp/gh-issue-solver-1764930855025" && gh pr create --draft --title "$(cat '/tmp/pr-title-1764930887868.txt')" --body-file "/tmp/pr-body-1764930887856.md" --base main --head konard:issue-112-ffe66abe5816 --repo andchir/video-timeline | |
| [2025-12-05T10:34:50.729Z] [INFO] 🔍 Verifying: PR creation... | |
| [2025-12-05T10:34:52.310Z] [INFO] ✅ Verification: PR exists on GitHub | |
| [2025-12-05T10:34:52.317Z] [INFO] ✅ PR created: #113 | |
| [2025-12-05T10:34:52.326Z] [INFO] 📍 PR URL: https://github.com/andchir/video-timeline/pull/113 | |
| [2025-12-05T10:34:52.336Z] [INFO] ℹ️ Note: Could not assign (no permission) | |
| [2025-12-05T10:34:52.348Z] [INFO] 🔗 Linking: Issue #112 to PR #113... | |
| [2025-12-05T10:34:53.537Z] [INFO] Issue node ID: I_kwDOQMVfss7ccV5_ | |
| [2025-12-05T10:34:54.701Z] [INFO] PR node ID: PR_kwDOQMVfss63RH0v | |
| [2025-12-05T10:34:55.998Z] [INFO] ✅ Link verified: Issue #112 → PR #113 | |
| [2025-12-05T10:34:57.192Z] [INFO] 👤 Current user: konard | |
| [2025-12-05T10:34:57.212Z] [INFO] | |
| 📊 Comment counting conditions: | |
| [2025-12-05T10:34:57.218Z] [INFO] prNumber: 113 | |
| [2025-12-05T10:34:57.220Z] [INFO] branchName: issue-112-ffe66abe5816 | |
| [2025-12-05T10:34:57.223Z] [INFO] isContinueMode: false | |
| [2025-12-05T10:34:57.225Z] [INFO] Will count comments: true | |
| [2025-12-05T10:34:57.229Z] [INFO] 💬 Counting comments: Checking for new comments since last commit... | |
| [2025-12-05T10:34:57.230Z] [INFO] PR #113 on branch: issue-112-ffe66abe5816 | |
| [2025-12-05T10:34:57.230Z] [INFO] Owner/Repo: andchir/video-timeline | |
| [2025-12-05T10:34:58.972Z] [INFO] 📅 Last commit time (from API): 2025-12-05T10:34:33.000Z | |
| [2025-12-05T10:35:02.060Z] [INFO] 💬 New PR comments: 0 | |
| [2025-12-05T10:35:02.070Z] [INFO] 💬 New issue comments: 0 | |
| [2025-12-05T10:35:02.071Z] [INFO] Total new comments: 0 | |
| [2025-12-05T10:35:02.073Z] [INFO] Comment lines to add: No (saving tokens) | |
| [2025-12-05T10:35:02.083Z] [INFO] PR review comments fetched: 0 | |
| [2025-12-05T10:35:02.096Z] [INFO] PR conversation comments fetched: 0 | |
| [2025-12-05T10:35:02.097Z] [INFO] Total PR comments checked: 0 | |
| [2025-12-05T10:35:10.730Z] [INFO] Feedback info will be added to prompt: | |
| [2025-12-05T10:35:10.760Z] [INFO] - Pull request description was edited after last commit | |
| [2025-12-05T10:35:10.777Z] [INFO] 📅 Getting timestamps: From GitHub servers... | |
| [2025-12-05T10:35:11.620Z] [INFO] 📝 Issue updated: 2025-12-05T10:32:05.000Z | |
| [2025-12-05T10:35:12.452Z] [INFO] 💬 Comments: None found | |
| [2025-12-05T10:35:13.750Z] [INFO] 🔀 Recent PR: 2025-12-05T10:34:49.000Z | |
| [2025-12-05T10:35:13.760Z] [INFO] | |
| ✅ Reference time: 2025-12-05T10:34:49.000Z | |
| [2025-12-05T10:35:13.765Z] [INFO] | |
| 🔍 Checking for uncommitted changes to include as feedback... | |
| [2025-12-05T10:35:13.984Z] [INFO] ✅ No uncommitted changes found | |
| [2025-12-05T10:35:15.184Z] [INFO] 📦 Fork workflows detected: https://github.com/konard/andchir-video-timeline/actions?query=branch%3Aissue-112-ffe66abe5816 | |
| [2025-12-05T10:35:15.227Z] [INFO] | |
| 📝 Final prompt structure: | |
| [2025-12-05T10:35:15.241Z] [INFO] Characters: 503 | |
| [2025-12-05T10:35:15.243Z] [INFO] System prompt characters: 8471 | |
| [2025-12-05T10:35:15.248Z] [INFO] Feedback info: Included | |
| [2025-12-05T10:35:15.269Z] [INFO] | |
| 🤖 Executing Claude: OPUS | |
| [2025-12-05T10:35:15.278Z] [INFO] Model: opus | |
| [2025-12-05T10:35:15.284Z] [INFO] Working directory: /tmp/gh-issue-solver-1764930855025 | |
| [2025-12-05T10:35:15.285Z] [INFO] Branch: issue-112-ffe66abe5816 | |
| [2025-12-05T10:35:15.285Z] [INFO] Prompt length: 503 chars | |
| [2025-12-05T10:35:15.287Z] [INFO] System prompt length: 8471 chars | |
| [2025-12-05T10:35:15.289Z] [INFO] Feedback info included: Yes (1 lines) | |
| [2025-12-05T10:35:15.610Z] [INFO] 📈 System resources before execution: | |
| [2025-12-05T10:35:15.617Z] [INFO] Memory: MemFree: 858984 kB | |
| [2025-12-05T10:35:15.619Z] [INFO] Load: 9.61 9.21 9.52 9/959 2095823 | |
| [2025-12-05T10:35:15.622Z] [INFO] | |
| 📝 Raw command: | |
| [2025-12-05T10:35:15.628Z] [INFO] (cd "/tmp/gh-issue-solver-1764930855025" && claude --output-format stream-json --verbose --dangerously-skip-permissions --model claude-opus-4-5-20251101 -p "Issue to solve: https://github.com/andchir/video-timeline/issues/112 | |
| Your prepared branch: issue-112-ffe66abe5816 | |
| Your prepared working directory: /tmp/gh-issue-solver-1764930855025 | |
| Your prepared Pull Request: https://github.com/andchir/video-timeline/pull/113 | |
| Your forked repository: konard/andchir-video-timeline | |
| Original repository (upstream): andchir/video-timeline | |
| GitHub Actions on your fork: https://github.com/konard/andchir-video-timeline/actions?query=branch%3Aissue-112-ffe66abe5816 | |
| Proceed." --append-system-prompt "You are an AI issue solver. You prefer to find the root cause of each and every issue. When you talk, you prefer to speak with facts which you have double-checked yourself or cite sources that provide evidence, like quote actual code or give references to documents or pages found on the internet. You are polite and patient, and prefer to assume good intent, trying your best to be helpful. If you are unsure or have assumptions, you prefer to test them yourself or ask questions to clarify requirements. | |
| General guidelines. | |
| - When you execute commands, always save their logs to files for easier reading if the output becomes large. | |
| - When running commands, do not set a timeout yourself — let them run as long as needed (default timeout - 2 minutes is more than enough), and once they finish, review the logs in the file. | |
| - When running sudo commands (especially package installations like apt-get, yum, npm install, etc.), always run them in the background to avoid timeout issues and permission errors when the process needs to be killed. Use the run_in_background parameter or append & to the command. | |
| - When CI is failing or user reports failures, consider adding a detailed investigation protocol to your todo list with these steps: | |
| Step 1: List recent runs with timestamps using: gh run list --repo andchir/video-timeline --branch issue-112-ffe66abe5816 --limit 5 --json databaseId,conclusion,createdAt,headSha | |
| Step 2: Verify runs are after the latest commit by checking timestamps and SHA | |
| Step 3: For each non-passing run, download logs to preserve them: gh run view {run-id} --repo andchir/video-timeline --log > ci-logs/{workflow}-{run-id}.log | |
| Step 4: Read each downloaded log file using Read tool to understand the actual failures | |
| Step 5: Report findings with specific errors and line numbers from logs | |
| This detailed investigation is especially helpful when user mentions CI failures, asks to investigate logs, you see non-passing status, or when finalizing a PR. | |
| Note: If user says \"failing\" but tools show \"passing\", this might indicate stale data - consider downloading fresh logs and checking timestamps to resolve the discrepancy. | |
| - When a code or log file has more than 1500 lines, read it in chunks of 1500 lines. | |
| - When facing a complex problem, do as much tracing as possible and turn on all verbose modes. | |
| - When you create debug, test, or example/experiment scripts for fixing, always keep them in an examples and/or experiments folders so you can reuse them later. | |
| - When testing your assumptions, use the experiment scripts, and add it to experiments folder. | |
| - When your experiments can show real world use case of the software, add it to examples folder. | |
| - When you face something extremely hard, use divide and conquer — it always helps. | |
| Initial research. | |
| - When you start, make sure you create detailed plan for yourself and follow your todo list step by step, make sure that as many points from these guidelines are added to your todo list to keep track of everything that can help you solve the issue with highest possible quality. | |
| - When user mentions CI failures or asks to investigate logs, consider adding these todos to track the investigation: (1) List recent CI runs with timestamps, (2) Download logs from failed runs to ci-logs/ directory, (3) Analyze error messages and identify root cause, (4) Implement fix, (5) Verify fix resolves the specific errors found in logs. | |
| - When you read issue, read all details and comments thoroughly. | |
| - When you see screenshots or images in issue descriptions, pull request descriptions, comments, or discussions, use WebFetch tool (or fetch tool) to download the image first, then use Read tool to view and analyze it. | |
| - When you need issue details, use gh issue view https://github.com/andchir/video-timeline/issues/112. | |
| - When you need related code, use gh search code --owner andchir [keywords]. | |
| - When you need repo context, read files in your working directory. | |
| - When you study related work, study the most recent related pull requests. | |
| - When issue is not defined enough, write a comment to ask clarifying questions. | |
| - When accessing GitHub Gists (especially private ones), use gh gist view command instead of direct URL fetching to ensure proper authentication. | |
| - When you are fixing a bug, please make sure you first find the actual root cause, do as many experiments as needed. | |
| - When you are fixing a bug and code does not have enough tracing/logs, add them and make sure they stay in the code, but are switched off by default. | |
| - When you need latest comments on pull request (sorted newest first), use appropriate GitHub API commands. | |
| - When you need latest comments on issue (sorted newest first), use appropriate GitHub API commands. | |
| Solution development and testing. | |
| - When issue is solvable, implement code with tests. | |
| - When coding, each atomic step that can be useful by itself should be commited to the pull request's branch, meaning if work will be interrupted by any reason parts of solution will still be kept intact and safe in pull request. | |
| - When you test: | |
| start from testing of small functions using separate scripts; | |
| write unit tests with mocks for easy and quick start. | |
| - When you test integrations, use existing framework. | |
| - When you test solution draft, include automated checks in pr. | |
| - When issue is unclear, write comment on issue asking questions. | |
| - When you encounter any problems that you unable to solve yourself (any human feedback or help), write a comment to the pull request asking for help. | |
| - When you need human help, use gh pr comment 113 --body \"your message\" to comment on existing PR. | |
| Preparing pull request. | |
| - When you code, follow contributing guidelines. | |
| - When you commit, write clear message. | |
| - When you need examples of style, use gh pr list --repo andchir/video-timeline --state merged --search [keywords]. | |
| - When you open pr, describe solution draft and include tests. | |
| - When there is a package with version and GitHub Actions workflows for automatic release, update the version (or other necessary release trigger) in your pull request to prepare for next release. | |
| - When you update existing pr 113, use gh pr edit to modify title and description. | |
| - When you are about to commit or push code, ALWAYS run local CI checks first if they are available in contributing guidelines (like ruff check, mypy, eslint, etc.) to catch errors before pushing. | |
| - When you finalize the pull request: | |
| follow style from merged prs for code, title, and description, | |
| make sure no uncommitted changes corresponding to the original requirements are left behind, | |
| make sure the default branch is merged to the pull request's branch, | |
| make sure all CI checks passing if they exist before you finish, | |
| double-check that all changes in the pull request answer to original requirements of the issue, | |
| make sure no new new bugs are introduced in pull request by carefully reading gh pr diff, | |
| make sure no previously existing features were removed without an explicit request from users via the issue description, issue comments, and/or pull request comments. | |
| - When you finish implementation, use gh pr ready 113. | |
| Workflow and collaboration. | |
| - When you check branch, verify with git branch --show-current. | |
| - When you push, push only to branch issue-112-ffe66abe5816. | |
| - When you finish, create a pull request from branch issue-112-ffe66abe5816. (Note: PR 113 already exists, update it instead) | |
| - When you organize workflow, use pull requests instead of direct merges to default branch (main or master). | |
| - When you manage commits, preserve commit history for later analysis. | |
| - When you contribute, keep repository history forward-moving with regular commits, pushes, and reverts if needed. | |
| - When you face conflict that you cannot resolve yourself, ask for help. | |
| - When you collaborate, respect branch protections by working only on issue-112-ffe66abe5816. | |
| - When you mention result, include pull request url or comment url. | |
| - When you need to create pr, remember pr 113 already exists for this branch. | |
| Self review. | |
| - When you check your solution draft, run all tests locally. | |
| - When you compare with repo style, use gh pr diff [number]. | |
| - When you finalize, confirm code, tests, and description are consistent." | jq -c .) | |
| [2025-12-05T10:35:15.634Z] [INFO] | |
| [2025-12-05T10:35:15.638Z] [INFO] 📋 User prompt: | |
| [2025-12-05T10:35:15.639Z] [INFO] ---BEGIN USER PROMPT--- | |
| [2025-12-05T10:35:15.643Z] [INFO] Issue to solve: https://github.com/andchir/video-timeline/issues/112 | |
| Your prepared branch: issue-112-ffe66abe5816 | |
| Your prepared working directory: /tmp/gh-issue-solver-1764930855025 | |
| Your prepared Pull Request: https://github.com/andchir/video-timeline/pull/113 | |
| Your forked repository: konard/andchir-video-timeline | |
| Original repository (upstream): andchir/video-timeline | |
| GitHub Actions on your fork: https://github.com/konard/andchir-video-timeline/actions?query=branch%3Aissue-112-ffe66abe5816 | |
| Proceed. | |
| [2025-12-05T10:35:15.646Z] [INFO] ---END USER PROMPT--- | |
| [2025-12-05T10:35:15.646Z] [INFO] | |
| [2025-12-05T10:35:15.648Z] [INFO] 📋 System prompt: | |
| [2025-12-05T10:35:15.649Z] [INFO] ---BEGIN SYSTEM PROMPT--- | |
| [2025-12-05T10:35:15.649Z] [INFO] You are an AI issue solver. You prefer to find the root cause of each and every issue. When you talk, you prefer to speak with facts which you have double-checked yourself or cite sources that provide evidence, like quote actual code or give references to documents or pages found on the internet. You are polite and patient, and prefer to assume good intent, trying your best to be helpful. If you are unsure or have assumptions, you prefer to test them yourself or ask questions to clarify requirements. | |
| General guidelines. | |
| - When you execute commands, always save their logs to files for easier reading if the output becomes large. | |
| - When running commands, do not set a timeout yourself — let them run as long as needed (default timeout - 2 minutes is more than enough), and once they finish, review the logs in the file. | |
| - When running sudo commands (especially package installations like apt-get, yum, npm install, etc.), always run them in the background to avoid timeout issues and permission errors when the process needs to be killed. Use the run_in_background parameter or append & to the command. | |
| - When CI is failing or user reports failures, consider adding a detailed investigation protocol to your todo list with these steps: | |
| Step 1: List recent runs with timestamps using: gh run list --repo andchir/video-timeline --branch issue-112-ffe66abe5816 --limit 5 --json databaseId,conclusion,createdAt,headSha | |
| Step 2: Verify runs are after the latest commit by checking timestamps and SHA | |
| Step 3: For each non-passing run, download logs to preserve them: gh run view {run-id} --repo andchir/video-timeline --log > ci-logs/{workflow}-{run-id}.log | |
| Step 4: Read each downloaded log file using Read tool to understand the actual failures | |
| Step 5: Report findings with specific errors and line numbers from logs | |
| This detailed investigation is especially helpful when user mentions CI failures, asks to investigate logs, you see non-passing status, or when finalizing a PR. | |
| Note: If user says "failing" but tools show "passing", this might indicate stale data - consider downloading fresh logs and checking timestamps to resolve the discrepancy. | |
| - When a code or log file has more than 1500 lines, read it in chunks of 1500 lines. | |
| - When facing a complex problem, do as much tracing as possible and turn on all verbose modes. | |
| - When you create debug, test, or example/experiment scripts for fixing, always keep them in an examples and/or experiments folders so you can reuse them later. | |
| - When testing your assumptions, use the experiment scripts, and add it to experiments folder. | |
| - When your experiments can show real world use case of the software, add it to examples folder. | |
| - When you face something extremely hard, use divide and conquer — it always helps. | |
| Initial research. | |
| - When you start, make sure you create detailed plan for yourself and follow your todo list step by step, make sure that as many points from these guidelines are added to your todo list to keep track of everything that can help you solve the issue with highest possible quality. | |
| - When user mentions CI failures or asks to investigate logs, consider adding these todos to track the investigation: (1) List recent CI runs with timestamps, (2) Download logs from failed runs to ci-logs/ directory, (3) Analyze error messages and identify root cause, (4) Implement fix, (5) Verify fix resolves the specific errors found in logs. | |
| - When you read issue, read all details and comments thoroughly. | |
| - When you see screenshots or images in issue descriptions, pull request descriptions, comments, or discussions, use WebFetch tool (or fetch tool) to download the image first, then use Read tool to view and analyze it. | |
| - When you need issue details, use gh issue view https://github.com/andchir/video-timeline/issues/112. | |
| - When you need related code, use gh search code --owner andchir [keywords]. | |
| - When you need repo context, read files in your working directory. | |
| - When you study related work, study the most recent related pull requests. | |
| - When issue is not defined enough, write a comment to ask clarifying questions. | |
| - When accessing GitHub Gists (especially private ones), use gh gist view command instead of direct URL fetching to ensure proper authentication. | |
| - When you are fixing a bug, please make sure you first find the actual root cause, do as many experiments as needed. | |
| - When you are fixing a bug and code does not have enough tracing/logs, add them and make sure they stay in the code, but are switched off by default. | |
| - When you need latest comments on pull request (sorted newest first), use appropriate GitHub API commands. | |
| - When you need latest comments on issue (sorted newest first), use appropriate GitHub API commands. | |
| Solution development and testing. | |
| - When issue is solvable, implement code with tests. | |
| - When coding, each atomic step that can be useful by itself should be commited to the pull request's branch, meaning if work will be interrupted by any reason parts of solution will still be kept intact and safe in pull request. | |
| - When you test: | |
| start from testing of small functions using separate scripts; | |
| write unit tests with mocks for easy and quick start. | |
| - When you test integrations, use existing framework. | |
| - When you test solution draft, include automated checks in pr. | |
| - When issue is unclear, write comment on issue asking questions. | |
| - When you encounter any problems that you unable to solve yourself (any human feedback or help), write a comment to the pull request asking for help. | |
| - When you need human help, use gh pr comment 113 --body "your message" to comment on existing PR. | |
| Preparing pull request. | |
| - When you code, follow contributing guidelines. | |
| - When you commit, write clear message. | |
| - When you need examples of style, use gh pr list --repo andchir/video-timeline --state merged --search [keywords]. | |
| - When you open pr, describe solution draft and include tests. | |
| - When there is a package with version and GitHub Actions workflows for automatic release, update the version (or other necessary release trigger) in your pull request to prepare for next release. | |
| - When you update existing pr 113, use gh pr edit to modify title and description. | |
| - When you are about to commit or push code, ALWAYS run local CI checks first if they are available in contributing guidelines (like ruff check, mypy, eslint, etc.) to catch errors before pushing. | |
| - When you finalize the pull request: | |
| follow style from merged prs for code, title, and description, | |
| make sure no uncommitted changes corresponding to the original requirements are left behind, | |
| make sure the default branch is merged to the pull request's branch, | |
| make sure all CI checks passing if they exist before you finish, | |
| double-check that all changes in the pull request answer to original requirements of the issue, | |
| make sure no new new bugs are introduced in pull request by carefully reading gh pr diff, | |
| make sure no previously existing features were removed without an explicit request from users via the issue description, issue comments, and/or pull request comments. | |
| - When you finish implementation, use gh pr ready 113. | |
| Workflow and collaboration. | |
| - When you check branch, verify with git branch --show-current. | |
| - When you push, push only to branch issue-112-ffe66abe5816. | |
| - When you finish, create a pull request from branch issue-112-ffe66abe5816. (Note: PR 113 already exists, update it instead) | |
| - When you organize workflow, use pull requests instead of direct merges to default branch (main or master). | |
| - When you manage commits, preserve commit history for later analysis. | |
| - When you contribute, keep repository history forward-moving with regular commits, pushes, and reverts if needed. | |
| - When you face conflict that you cannot resolve yourself, ask for help. | |
| - When you collaborate, respect branch protections by working only on issue-112-ffe66abe5816. | |
| - When you mention result, include pull request url or comment url. | |
| - When you need to create pr, remember pr 113 already exists for this branch. | |
| Self review. | |
| - When you check your solution draft, run all tests locally. | |
| - When you compare with repo style, use gh pr diff [number]. | |
| - When you finalize, confirm code, tests, and description are consistent. | |
| [2025-12-05T10:35:15.658Z] [INFO] ---END SYSTEM PROMPT--- | |
| [2025-12-05T10:35:15.661Z] [INFO] | |
| [2025-12-05T10:35:15.668Z] [INFO] 📋 Command details: | |
| [2025-12-05T10:35:15.677Z] [INFO] 📂 Working directory: /tmp/gh-issue-solver-1764930855025 | |
| [2025-12-05T10:35:15.678Z] [INFO] 🌿 Branch: issue-112-ffe66abe5816 | |
| [2025-12-05T10:35:15.678Z] [INFO] 🤖 Model: Claude OPUS | |
| [2025-12-05T10:35:15.680Z] [INFO] 🍴 Fork: konard/andchir-video-timeline | |
| [2025-12-05T10:35:15.682Z] [INFO] | |
| ▶️ Streaming output: | |
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| [2025-12-05T10:36:16.686Z] [INFO] {"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_015fryDnx7QB8vhfWLiS9WAB","type":"tool_result","content":" 1→export enum MediaType {\n 2→ VIDEO = 'video',\n 3→ AUDIO = 'audio',\n 4→ IMAGE = 'image'\n 5→}\n 6→\n 7→export interface MediaItem {\n 8→ id: string;\n 9→ type: MediaType;\n 10→ startTime: number; // milliseconds - position on timeline\n 11→ duration: number; // milliseconds - duration shown on timeline\n 12→ mediaStartTime?: number; // milliseconds - offset into source media (default: 0)\n 13→ maxDuration?: number; // milliseconds - maximum duration for audio/video placeholders\n 14→ trackId: string;\n 15→ name?: string;\n 16→ isPlaceholder?: boolean;\n 17→}\n 18→\n 19→export interface Track {\n 20→ id: string;\n 21→ name: string;\n 22→ order: number;\n 23→ items: MediaItem[];\n 24→}\n 25→\n 26→export interface TimelineState {\n 27→ tracks: Track[];\n 28→ playheadPosition: number; // milliseconds\n 29→ zoomLevel: number; // pixels per millisecond\n 30→ totalDuration: number; // milliseconds\n 31→ selectedItemId: string | null; // ID of selected media item\n 32→}\n 33→\n\n<system-reminder>\nWhenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.\n</system-reminder>\n"}]},"parent_tool_use_id":null,"session_id":"d5b1bf94-1397-44f7-9390-3c57ba19d0b0","uuid":"c040a0fd-8f2f-4025-9753-9abd7079c3bd","tool_use_result":{"type":"text","file":{"filePath":"/tmp/gh-issue-solver-1764930855025/video-timeline/src/app/models/timeline.models.ts","content":"export enum MediaType {\n VIDEO = 'video',\n AUDIO = 'audio',\n IMAGE = 'image'\n}\n\nexport interface MediaItem {\n id: string | |
| [2025-12-05T10:36:16.796Z] [INFO] ;\n type: MediaType;\n startTime: number; // milliseconds - position on timeline\n duration: number; // milliseconds - duration shown on timeline\n mediaStartTime?: number; // milliseconds - offset into source media (default: 0)\n maxDuration?: number; // milliseconds - maximum duration for audio/video placeholders\n trackId: string;\n name?: string;\n isPlaceholder?: boolean;\n}\n\nexport interface Track {\n id: string;\n name: string;\n order: number;\n items: MediaItem[];\n}\n\nexport interface TimelineState {\n tracks: Track[];\n playheadPosition: number; // milliseconds\n zoomLevel: number; // pixels per millisecond\n totalDuration: number; // milliseconds\n selectedItemId: string | null; // ID of selected media item\n}\n","numLines":33,"startLine":1,"totalLines":33}}} | |
| [2025-12-05T10:36:17.064Z] [INFO] {"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_0148gTiwuu3s1jyrGmPwc4zJ","type":"tool_result","content":" 1→import { Component, signal, computed, ViewChild, ElementRef } from '@angular/core';\n 2→import { CommonModule } from '@angular/common';\n 3→import { MediaType, MediaItem, Track, TimelineState } from '../../models/timeline.models';\n 4→import { MediaLibraryComponent, MediaLibraryItem } from '../media-library/media-library.component';\n 5→import { Media***********onent } from '../media-toolbar/media-toolbar.component';\n 6→import { Notif************onent } from '../notifications/notifications.component';\n 7→import { Timel*************rvice } from '../../services/timeline-drag-drop.service';\n 8→\n 9→@Component({\n 10→ selector: 'app-timeline',\n 11→ standalone: true,\n 12→ imports: [CommonModule, MediaLibraryComponent, MediaToolbarComponent, NotificationsComponent],\n 13→ templateUrl: './timeline.component.html',\n 14→ styleUrl: './timeline.component.css'\n 15→})\n 16→export class TimelineComponent {\n 17→ // Zoom levels: pixels per second\n 18→ private readonly MIN_ZOOM = 10;\n 19→ private readonly MAX_ZOOM = 200;\n 20→ private readonly ZOOM_STEP = 20;\n 21→ readonly TRACK_HEADER_WIDTH = 150; // Width of track header in pixels\n 22→ private readonly SNAP_PROXIMITY_MS = 500; // Snap to item if playhead is within 500ms\n 23→ private readonly MIN_ITEM_DURATION = 100; // Minimum item duration in milliseconds\n 24→\n 25→ // View references\n 26→ @ViewChild('timelineRuler') timelineRuler?: ElementRef<HTMLElement>;\n 27→ @ViewChild('notifications') notificationsComponent?: NotificationsComponent;\n 28→\n 29→ // Timeline state\n 30→ readonly state = signal<TimelineState>({\n 31→ tracks: [\n 32→ { id: '1', name: 'Track 1', order: 0, items: [] },\n 33→ { id: '2', name: 'Track 2', order: 1, items: [] }\n 34→ ],\n 35→ playheadPosition: 0,\n 36→ zoomLevel: 50, // pixels per second\n 37→ totalDuration: 120000, // 120 seconds in milliseconds\n 38→ selectedItemId: null\n 39→ });\n 40→\n 41→ // Computed values\n 42→ readonly pixel**********econd = computed(() => {\n 43→ return this.state().zoomLevel / 1000;\n 44→ });\n 45→\n 46→ readonly timelineWidth = computed(() => {\n 47→ const state = this.state();\n 48→ // Calculate the maximum end time across all tracks\n 49→ let maxEndTime = state.totalDuration;\n 50→\n 51→ for (const track of state.tracks) {\n 52→ for (const item of track.items) {\n 53→ const itemEndTime = item.startTime + item.duration;\n 54→ if (itemEndTime > maxEndTime) {\n 55→ maxEndTime = itemEndTime;\n 56→ }\n 57→ }\n 58→ }\n 59→\n 60→ return maxEndTime * this.pixelsPerMillisecond();\n 61→ });\n 62→\n 63→ readonly timelineLineHeight = computed(() => {\n 64→ const state = this.state();\n 65→ return state.tracks.length * 60 + 32;\n 66→ });\n 67→\n 68→ readonly playheadPosition = computed(() => {\n 69→ return this.state().playheadPosition * this.pixelsPerMillisecond();\n 70→ });\n 71→\n 72→ readonly playh************ition = computed(() => {\n 73→ return this.playheadPosition() + this.TRACK_HEADER_WIDTH;\n 74→ });\n 75→\n 76→ // Computed: whether a media item is currently selected\n 77→ readonly hasSelectedItem = computed(() => {\n 78→ return this.state().selectedItemId !== null;\n 79→ });\n 80→\n 81→ // Dragging state\n 82→ private draggedItem: MediaItem | null = null;\n 83→ private draggedItemOriginalTrackId: string | null = null;\n 84→ private dragOffsetTime: number = 0; // Offset in milliseconds from item start to cursor position\n 85→ private isDraggingPlayhead = false;\n 86→ private isDraggingFromRuler = false;\n 87→ private resizingItem: { item: MediaItem; edge: 'left' | 'right' } | null = null;\n 88→ private mouseDownPosition: { x: number; y: number } | null = null; // Track mouse down position for click detection\n 89→\n 90→ // Video preview state\n 91→ readonly isPlaying = signal<boolean>(false);\n 92→\n 93→ // Duration editor state\n 94→ readonly showDurationEditor = signal<boolean>(false);\n 95→ private editedDuration: number = 120; // Duration in seconds\n 96→\n 97→ // Media library state\n 98→ readonly showMediaLibrary = signal<boolean>(false);\n 99→ private mediaLibraryTargetTrackId: string | null = null;\n 100→\n 101→ // Clipboard state for copy/paste functionality\n 102→ private readonly clipboardItem = signal<MediaItem | null>(null);\n 103→ private readonly clipb************ackId = signal<string | null>(null);\n 104→\n 105→ // Computed: whether a media item is in clipboard\n 106→ readonly hasClipboardItem = computed(() => {\n 107→ return this.clipboardItem() !== null;\n 108→ });\n 109→\n 110→ constructor(private dragDropService: TimelineDragDropService) {\n 111→ }\n 112→\n 113→ // Track management\n 114→ addTrack(): void {\n 115→ const currentState = this.state();\n 116→ const newTrack: Track = {\n 117→ id: `track-${Date.now()}`,\n 118→ name: `Track ${currentState.tracks.length + 1}`,\n 119→ order: currentState.tracks.length,\n 120→ items: []\n 121→ };\n 122→\n 123→ this.state.update(s => ({\n 124→ ...s,\n 125→ tracks: [...s.tracks, newTrack]\n 126→ }));\n 127→ }\n 128→\n 129→ removeTrack(trackId: string): void {\n 130→ const currentState = this.state();\n 131→ if (currentState.tracks.length <= 1) {\n 132→ return; // Keep at least one track\n 133→ }\n 134→\n 135→ this.state.update(s => ({\n 136→ ...s,\n 137→ tracks: s.tracks.filter(t => t.id !== trackId)\n 138→ }));\n 139→ }\n 140→\n 141→ // Zoom controls\n 142→ zoomIn(): void {\n 143→ this.state.update(s => ({\n 144→ ...s,\n 145→ zoomLevel: Math.min(s.zoomLevel + this.ZOOM_STEP, this.MAX_ZOOM)\n 146→ }));\n 147→ }\n 148→\n 149→ zoomOut(): void {\n 150→ this.state.update(s => ({\n 151→ ...s,\n 152→ zoomLevel: Math.max(s.zoomLevel - this.ZOOM_STEP, this.MIN_ZOOM)\n 153→ }));\n 154→ }\n 155→\n 156→ // Utility method to extract coordinates from mouse or touch events\n 157→ private getEventCoordinates(event: MouseEvent | TouchEvent): { clientX: number; clientY: number } {\n 158→ if (event instanceof MouseEvent) {\n 159→ return { clientX: event.clientX, clientY: event.clientY };\n 160→ } else {\n 161→ const touch = event.touches[0] || event.changedTouches[0];\n 162→ return { clientX: touch.clientX, clientY: touch.clientY };\n 163→ }\n 164→ }\n 165→\n 166→ // Playhead controls\n 167→ onRulerPointerDown(event: MouseEvent | TouchEvent): void {\n 168→ event.preventDefault();\n 169→ this.isDraggingFromRuler = true;\n 170→\n 171→ // Immediately update position on pointer down\n 172→ const target = event.currentTarget as HTMLElement;\n 173→ const rect = target.getBoundingClientRect();\n 174→ const coords = this.getEventCoordinates(event);\n 175→ // Calculate position within the ruler element\n 176→ // getBoundingClientRect() already accounts for scroll, so we don't add scrollLeft\n 177→ const x = coords.clientX - rect.left;\n 178→ const newPosition = x / this.pixelsPerMillisecond();\n 179→\n 180→ this.state.update(s => ({\n 181→ ...s,\n 182→ playheadPosition: Math.max(0, Math.min(newPosition, s.totalDuration))\n 183→ }));\n 184→ }\n 185→\n 186→ onPlayheadPointerDown(event: MouseEvent | TouchEvent): void {\n 187→ event.preventDefault();\n 188→ event.stopPropagation();\n 189→ this.isDraggingPlayhead = true;\n 190→ }\n 191→\n 192→\n 193→ // Media item drag and drop\n 194→ onMediaItemPointerDown(event: MouseEvent | TouchEvent, item: MediaItem, track: Track): void {\n 195→ const target = event.target as HTMLElement;\n 196→\n 197→ // Check if clicking/touching on resize handle\n 198→ if (target.classList.contains('resize-handle')) {\n 199→ this.resizingItem = {\n 200→ item,\n 201→ edge: target.classList.contains('resize-handle-left') ? 'left' : 'right'\n 202→ };\n 203→ event.preventDefault();\n 204→ return;\n 205→ }\n 206→\n 207→ const coords = this.getEventCoordinates(event);\n 208→ this.mouseDownPosition = { x: coords.clientX, y: coords.clientY };\n 209→\n 210→ const mediaItemElement = event.currentTarget as HTMLElement;\n 211→ const rect = mediaItemElement.getBoundingClientRect();\n 212→ const clickX = coords.clientX - rect.left;\n 213→\n 214→ // Convert pixel offset to time offset\n 215→ this.dragOffsetTime = clickX / this.pixelsPerMillisecond();\n 216→\n 217→ this.draggedItem = item;\n 218→ this.draggedItemOriginalTrackId = track.id;\n 219→ event.preventDefault();\n 220→ }\n 221→\n 222→ onTrackPointerDown(event: MouseEvent | TouchEvent): void {\n 223→ // Deselect when clicking/touching track background (not on media item)\n 224→ const target = event.target as HTMLElement;\n 225→ if (target.classList.contains('track')) {\n 226→ this.deselectMediaItem();\n 227→ }\n 228→ }\n 229→\n 230→ onTrackPointerMove(event: MouseEvent | TouchEvent, track: Track): void {\n 231→ if (this.resizingItem) {\n 232→ this.handleResize(event, track);\n 233→ return;\n 234→ }\n 235→ event.preventDefault();\n 236→ event.stopPropagation();\n 237→\n 238→ if (!this.draggedItem) return;\n 239→\n 240→ const coords = this.getEventCoordinates(event);\n 241→ const target = event.currentTarget as HTMLElement;\n 242→ const rect = target.getBoundingClientRect();\n 243→ const x = coords.clientX - rect.left;\n 244→ const requestedStartTime = Math.max(0, x / this.pixelsPerMillisecond() - this.dragOffsetTime);\n 245→\n 246→ this.state.update(s => {\n 247→ const updatedTracks = s.tracks.map(t => {\n 248→ if (t.id === track.id) {\n 249→ // Get all items except the dragged one for collision detection\n 250→ const otherItems = t.items.filter(i => i.id !== this.draggedItem!.id);\n 251→\n 252→ // Fix for issue #81: Find snap targets (playhead and items on all tracks)\n 253→ const snapTargets = this.dragDropService.findSnapTargets(\n 254→ this.draggedItem!.id,\n 255→ s.tracks,\n 256→ s.playheadPosition\n 257→ );\n 258→\n 259→ // Calculate valid position and duration considering collisions, gap fitting, and snapping\n 260→ const validPosition = this.dragDropService.getValidDragPosition(\n 261→ this.draggedItem!,\n 262→ requestedStartTime,\n 263→ otherItems,\n 264→ s.totalDuration,\n 265→ snapTargets\n 266→ );\n 267→\n 268→ // Check if item already exists in this track\n 269→ const itemExists = t.items.some(i => i.id === this.draggedItem!.id);\n 270→\n 271→ if (itemExists) {\n 272→ // Update position and duration in current track\n 273→ return {\n 274→ ...t,\n 275→ items: t.items.map(i =>\n 276→ i.id === this.draggedItem!.id\n 277→ ? {\n 278→ ...i,\n 279→ startTime: validPosition.startTime,\n 280→ duration: validPosition.duration,\n 281→ trackId: track.id\n 282→ }\n 283→ : i\n 284→ )\n 285→ };\n 286→ } else {\n 287→ // Add to new track with adjusted position and duration\n 288→ return {\n 289→ ...t,\n 290→ items: [\n 291→ ...otherItems,\n 292→ {\n 293→ ...this.draggedItem!,\n 294→ startTime: validPosition.startTime,\n 295→ duration: validPosition.duration,\n 296→ trackId: track.id\n 297→ }\n 298→ ]\n 299→ };\n 300→ }\n 301→ } else if (t.id === this.draggedItemOriginalTrackId && t.id !== track.id) {\n 302→ // Remove from original track only if moving to different track\n 303→ return {\n 304→ ...t,\n 305→ items: t.items.filter(i => i.id !== this.draggedItem!.id)\n 306→ };\n 307→ }\n 308→ return t;\n 309→ });\n 310→\n 311→ // Update the original track ID to current track for smooth dragging within same track\n 312→ this.draggedItemOriginalTrackId = track.id;\n 313→\n 314→ return { ...s, tracks: updatedTracks };\n 315→ });\n 316→ }\n 317→\n 318→ private handleResize(event: MouseEvent | TouchEvent, track: Track): void {\n 319→ if (!this.resizingItem) return;\n 320→\n 321→ const coords = this.getEventCoordinates(event);\n 322→ const target = event.currentTarget as HTMLElement;\n 323→ const rect = target.getBoundingClientRect();\n 324→ // Fix for issue #83: getBoundingClientRect() returns viewport-relative coordinates,\n 325→ // and coords.clientX is also viewport-relative, so we don't need to add scrollLeft\n 326→ const x = coords.clientX - rect.left;\n 327→ const timeAtCursor = x / this.pixelsPerMillisecond();\n 328→\n 329→ this.state.update(s => {\n 330→ // Fix for issue #87: Find snap targets for resize operations\n 331→ const snapTargets = this.dragDropService.findSnapTargets(\n 332→ this.resizingItem!.item.id,\n 333→ s.tracks,\n 334→ s.playheadPosition\n 335→ );\n 336→\n 337→ const updatedTracks = s.tracks.map(t => {\n 338→ if (t.id === track.id) {\n 339→ // Get resize bounds considering adjacent items\n 340→ const bounds = this.dragDropService.getResizeBounds(\n 341→ this.resizingItem!.item,\n 342→ t.items,\n 343→ this.resizingItem!.edge,\n 344→ s.totalDuration\n 345→ );\n 346→\n 347→ return {\n 348→ ...t,\n 349→ items: t.items.map(i => {\n 350→ if (i.id === this.resizingItem!.item.id) {\n 351→ if (this.resizingItem!.edge === 'left') {\n 352→ // Fix for issue #89: Handle mediaStartTime when resizing from left\n 353→ // Apply snapping to left edge (start time)\n 354→ let newStartTime = Math.max(\n 355→ bounds.minTime,\n 356→ Math.min(timeAtCursor, bounds.maxTime)\n 357→ );\n 358→\n 359→ // Apply snapping if within snap distance\n 360→ let minDistance = this.dragDropService.SNAP_DISTANCE_MS;\n 361→ for (const target of snapTargets) {\n 362→ const distance = Math.abs(newStartTime - target);\n 363→ if (distance < minDistance) {\n 364→ minDistance = distance;\n 365→ // Only snap if within bounds\n 366→ if (target >= bounds.minTime && target <= bounds.maxTime) {\n 367→ newStartTime = target;\n 368→ }\n 369→ }\n 370→ }\n 371→\n 372→ // Calculate how much the timeline position is changing\n 373→ const deltaTime = newStartTime - i.startTime;\n 374→ const newDuration = i.duration - deltaTime;\n 375→\n 376→ // Update media start time (trimming from source media)\n 377→ const curre***********tTime = i.mediaStartTime || 0;\n 378→ const newMediaStartTime = curre***********tTime + deltaTime;\n 379→\n 380→ // Check if we're trying to extend beyond the start of source media\n 381→ if (newMediaStartTime < 0) {\n 382→ // Can only extend left by curre***********tTime amount\n 383→ const maxExtension = currentMediaStartTime;\n 384→ const finalStartTime = i.startTime - maxExtension;\n 385→ const finalDuration = i.duration + maxExtension;\n 386→\n 387→ // Ensure we don't exceed maxDuration\n 388→ if (i.maxDuration && finalDuration > i.maxDuration) {\n 389→ return {\n 390→ ...i,\n 391→ startTime: finalStartTime + (finalDuration - i.maxDuration),\n 392→ duration: i.maxDuration,\n 393→ mediaStartTime: 0\n 394→ };\n 395→ }\n 396→\n 397→ return {\n 398→ ...i,\n 399→ startTime: finalStartTime,\n 400→ duration: finalDuration,\n 401→ mediaStartTime: 0\n 402→ };\n 403→ }\n 404→\n 405→ // Ensure media end doesn't exceed maxDuration\n 406→ if (i.maxDuration && newMediaStartTime + newDuration > i.maxDuration) {\n 407→ const maxAllowedDuration = i.maxDuration - newMediaStartTime;\n 408→ return {\n 409→ ...i,\n 410→ startTime: i.startTime + (i.duration - maxAllowedDuration),\n 411→ duration: maxAllowedDuration,\n 412→ mediaStartTime: newMediaStartTime\n 413→ };\n 414→ }\n 415→\n 416→ return {\n 417→ ...i,\n 418→ startTime: newStartTime,\n 419→ duration: newDuration,\n 420→ mediaStartTime: newMediaStartTime\n 421→ };\n 422→ } else {\n 423→ // Fix for issue #87: Apply snapping to right edge (end time)\n 424→ let newEndTime = Math.max(\n 425→ bounds.minTime,\n 426→ Math.min(timeAtCursor, bounds.maxTime)\n 427→ );\n 428→\n 429→ // Apply snapping if within snap distance\n 430→ let minDistance = this.dragDropService.SNAP_DISTANCE_MS;\n 431→ for (const target of snapTargets) {\n 432→ const distance = Math.abs(newEndTime - target);\n 433→ if (distance < minDistance) {\n 434→ minDistance = distance;\n 435→ // Only snap if within bounds\n 436→ if (target >= bounds.minTime && target <= bounds.maxTime) {\n 437→ newEndTime = target;\n 438→ }\n 439→ }\n 440→ }\n 441→\n 442→ const newDuration = newEndTime - i.startTime;\n 443→\n 444→ // Limit duration by maxDuration if specified\n 445→ const limitedDuration = i.maxDuration\n 446→ ? Math.min(newDuration, i.maxDuration)\n 447→ : newDuration;\n 448→\n 449→ return { ...i, duration: limitedDuration };\n 450→ }\n 451→ }\n 452→ return i;\n 453→ })\n 454→ };\n 455→ }\n 456→ return t;\n 457→ });\n 458→\n 459→ return { ...s, tracks: updatedTracks };\n 460→ });\n 461→ }\n 462→\n 463→ onPointerUp(event: MouseEvent | TouchEvent): void {\n 464→ // Detect if this was a click/tap (not a drag) on a media item\n 465→ if (this.draggedItem && this.mouseDownPosition) {\n 466→ const coords = this.getEventCoordinates(event);\n 467→ const dx = coords.clientX - this.mouseDownPosition.x;\n 468→ const dy = coords.clientY - this.mouseDownPosition.y;\n 469→ const distance = Math.sqrt(dx * dx + dy * dy);\n 470→\n 471→ // If pointer moved less than 5 pixels, consider it a click/tap\n 472→ if (distance < 5) {\n 473→ this.selectMediaItem(this.draggedItem.id);\n 474→ }\n 475→ }\n 476→\n 477→ this.draggedItem = null;\n 478→ this.draggedItemOriginalTrackId = null;\n 479→ this.dragOffsetTime = 0;\n 480→ this.isDraggingPlayhead = false;\n 481→ this.isDraggingFromRuler = false;\n 482→ this.resizingItem = null;\n 483→ this.mouseDownPosition = null;\n 484→ }\n 485→\n 486→ onDocumentPointerMove(event: MouseEvent | TouchEvent): void {\n 487→ if (this.isDraggingPlayhead || this.isDraggingFromRuler) {\n 488→ // Fix for issue #50: Use ViewChild reference to ensure we use the exact same element as onRulerPointerDown\n 489→ if (!this.timelineRuler) {\n 490→ return;\n 491→ }\n 492→\n 493→ const coords = this.getEventCoordinates(event);\n 494→ const rulerElement = this.timelineRuler.nativeElement;\n 495→ // Use the same calculation as onRulerPointerDown\n 496→ // getBoundingClientRect() already accounts for scroll, so we don't add scrollLeft\n 497→ const rect = rulerElement.getBoundingClientRect();\n 498→ const x = coords.clientX - rect.left;\n 499→ const newPosition = x / this.pixelsPerMillisecond();\n 500→\n 501→ this.state.update(s => ({\n 502→ ...s,\n 503→ playheadPosition: Math.max(0, Math.min(newPosition, s.totalDuration))\n 504→ }));\n 505→ }\n 506→\n 507→ // Fix for issue #96: Handle media item dragging and resizing at document level for touch events\n 508→ // This allows dragging between tracks on mobile devices\n 509→ if (event instanceof TouchEvent) {\n 510→ if (this.draggedItem) {\n 511→ // Find which track the touch is currently over\n 512→ const targetTrack = this.findTrackAtCoordinates(this.getEventCoordinates(event));\n 513→ if (targetTrack) {\n 514→ // Reuse existing drag logic\n 515→ this.onTrackPointerMove(event, targetTrack);\n 516→ }\n 517→ } else if (this.resizingItem) {\n 518→ // Find the track that contains the resizing item\n 519→ const targetTrack = this.findTrackContainingItem(this.resizingItem.item.id);\n 520→ if (targetTrack) {\n 521→ // Reuse existing resize logic\n 522→ this.handleResize(event, targetTrack);\n 523→ }\n 524→ }\n 525→ }\n 526→ }\n 527→\n 528→ // Helper method to find which track is at the given Y coordinate\n 529→ private findTrackAtCoordinates(coords: { clientX: number; clientY: number }): Track | null {\n 530→ const trackElements = document.querySelectorAll('.track');\n 531→ for (const trackElement of Array.from(trackElements)) {\n 532→ const rect = trackElement.getBoundingClientRect();\n 533→ if (coords.clientY >= rect.top && coords.clientY <= rect.bottom) {\n 534→ const trackIndex = Array.from(trackElements).indexOf(trackElement);\n 535→ const tracks = this.state().tracks;\n 536→ if (trackIndex >= 0 && trackIndex < tracks.length) {\n 537→ return tracks[trackIndex];\n 538→ }\n 539→ }\n 540→ }\n 541→ return null;\n 542→ }\n 543→\n 544→ // Helper method to find the track containing a specific item\n 545→ private findTrackContainingItem(itemId: string): Track | null {\n 546→ const currentState = this.state();\n 547→ for (const track of currentState.tracks) {\n 548→ if (track.items.some(item => item.id === itemId)) {\n 549→ return track;\n 550→ }\n 551→ }\n 552→ return null;\n 553→ }\n 554→\n 555→ // Helper methods\n 556→ getItemStyle(item: MediaItem) {\n 557→ return {\n 558→ left: `${item.startTime * this.pixelsPerMillisecond()}px`,\n 559→ width: `${item.duration * this.pixelsPerMillisecond()}px`\n 560→ };\n 561→ }\n 562→\n 563→ getMediaTypeClass(type: MediaType): string {\n 564→ return `media-${type}`;\n 565→ }\n 566→\n 567→ formatTime(milliseconds: number): string {\n 568→ const seconds = Math.floor(milliseconds / 1000);\n 569→ const minutes = Math.floor(seconds / 60);\n 570→ const remainingSeconds = seconds % 60;\n 571→ const cs = Math.floor((milliseconds % 1000) / 10);\n 572→ return `${minutes}:${remainingSeconds.toString().padStart(2, '0')}.${cs.toString().padStart(2, '0')}`;\n 573→ }\n 574→\n 575→ /**\n 576→ * Calculate appropriate time interval for markers based on zoom level\n 577→ * to prevent marker labels from overlapping\n 578→ */\n 579→ private getMarkerInterval(): number {\n 580→ // Minimum spacing between markers in pixels to prevent overlap\n 581→ // Enough space for \"0:00.000\" text (about 50-60px)\n 582→ const MIN_M***********NG_PX = 60;\n 583→\n 584→ // Calculate how much time represents MIN_M***********NG_PX at current zoom\n 585→ const pixelsPerMs = this.pixelsPerMillisecond();\n 586→ const minTimeSpacing = MIN_M***********NG_PX / pixelsPerMs;\n 587→\n 588→ // Define possible intervals (in ms): 100ms, 250ms, 500ms, 1s, 2s, 5s, 10s, 30s, 60s\n 589→ const intervals = [100, 250, 500, 1000, 2000, 5000, 10000, 30000, 60000];\n 590→\n 591→ // Find the smallest interval that's larger than or equal to minTimeSpacing\n 592→ for (const interval of intervals) {\n 593→ if (interval >= minTimeSpacing) {\n 594→ return interval;\n 595→ }\n 596→ }\n 597→\n 598→ // If even 60s is too small, use larger intervals\n 599→ return Math.ceil(minTimeSpacing / 60000) * 60000;\n 600→ }\n 601→\n 602→ getTimeMarkers(): { position: number; label: string }[] {\n 603→ const markers: { position: number; label: string }[] = [];\n 604→ const stepMs = this.getMarkerInterval(); // Dynamic interval based on zoom level\n 605→\n 606→ // Fix for issue #85: Do not show the last time mark at totalDuration\n 607→ // to prevent container expansion from the text label\n 608→ for (let time = 0; time < this.state().totalDuration; time += stepMs) {\n 609→ markers.push({\n 610→ position: time * this.pixelsPerMillisecond(),\n 611→ label: this.formatTime(time)\n 612→ });\n 613→ }\n 614→\n 615→ return markers;\n 616→ }\n 617→\n 618→ // Add placeholder media item\n 619→ addMediaItem(type: MediaType, trackId: string): void {\n 620→ const currentState = this.state();\n 621→ const track = currentState.tracks.find(t => t.id === trackId);\n 622→\n 623→ if (!track) return;\n 624→\n 625→ const playheadTime = currentState.playheadPosition;\n 626→ const totalDuration = currentState.totalDuration;\n 627→ const newItemDuration = type === MediaType.IMAGE ? 5000 : 3000;\n 628→\n 629→ // Determine the start time for the new item using the service\n 630→ const startTime = this.dragDropService.calculateNewItemStartTime(\n 631→ playheadTime,\n 632→ track.items,\n 633→ this.SNAP_PROXIMITY_MS\n 634→ );\n 635→\n 636→ // Fix for issue #48: Ensure new item doesn't exceed totalDuration\n 637→ const maxAllowedDuration = totalDuration - startTime;\n 638→ const finalDuration = Math.min(newItemDuration, maxAllowedDuration);\n 639→\n 640→ // Fix for issue #64: Verify that the new item doesn't overlap with any existing items\n 641→ const testItem: MediaItem = {\n 642→ id: 'temp',\n 643→ type,\n 644→ startTime,\n 645→ duration: finalDuration,\n 646→ trackId,\n 647→ name: '',\n 648→ isPlaceholder: true\n 649→ };\n 650→\n 651→ // Validate and adjust position if needed\n 652→ const validatedStartTime = this.dragDropService.validateItemPosition(testItem, track.items);\n 653→\n 654→ // Recalculate duration limit if position was adjusted\n 655→ const adjus****************ation = totalDuration - validatedStartTime;\n 656→ const adjustedDuration = Math.min(newItemDuration, adjustedMaxAllowedDuration);\n 657→\n 658→ // Create the final non-overlapping item\n 659→ const newItem: MediaItem = {\n 660→ id: `item-${Date.now()}`,\n 661→ type,\n 662→ startTime: validatedStartTime,\n 663→ duration: adjustedDuration,\n 664→ trackId,\n 665→ name: `${type} placeholder`,\n 666→ isPlaceholder: true\n 667→ };\n 668→\n 669→ // Set maxDuration for audio and video placeholders\n 670→ if (type === MediaType.VIDEO) {\n 671→ newItem.maxDuration = Math.min(10000, adjustedMaxAllowedDuration); // 10 seconds default for video\n 672→ } else if (type === MediaType.AUDIO) {\n 673→ newItem.maxDuration = Math.min(15000, adjustedMaxAllowedDuration); // 15 seconds default for audio\n 674→ }\n 675→\n 676→ this.state.update(s => ({\n 677→ ...s,\n 678→ tracks: s.tracks.map(t =>\n 679→ t.id === trackId\n 680→ ? { ...t, items: [...t.items, newItem] }\n 681→ : t\n 682→ )\n 683→ }));\n 684→ }\n 685→\n 686→ removeMediaItem(itemId: string, trackId: string): void {\n 687→ this.state.update(s => ({\n 688→ ...s,\n 689→ tracks: s.tracks.map(t =>\n 690→ t.id === trackId\n 691→ ? { ...t, items: t.items.filter(i => i.id !== itemId) }\n 692→ : t\n 693→ ),\n 694→ // Deselect if removing selected item\n 695→ selectedItemId: s.selectedItemId === itemId ? null : s.selectedItemId\n 696→ }));\n 697→ }\n 698→\n 699→ // Media selection\n 700→ selectMediaItem(itemId: string): void {\n 701→ this.state.update(s => ({\n 702→ ...s,\n 703→ selectedItemId: itemId\n 704→ }));\n 705→ }\n 706→\n 707→ deselectMediaItem(): void {\n 708→ this.state.update(s => ({\n 709→ ...s,\n 710→ selectedItemId: null\n 711→ }));\n 712→ }\n 713→\n 714→ isItemSelected(itemId: string): boolean {\n 715→ return this.state().selectedItemId === itemId;\n 716→ }\n 717→\n 718→ readonly MediaType = MediaType;\n 719→\n 720→ // Video preview controls\n 721→ togglePlayback(): void {\n 722→ this.isPlaying.update(playing => !playing);\n 723→ }\n 724→\n 725→ skipBackward(): void {\n 726→ this.state.update(s => ({\n 727→ ...s,\n 728→ playheadPosition: Math.max(0, s.playheadPosition - 5000)\n 729→ }));\n 730→ }\n 731→\n 732→ skipForward(): void {\n 733→ this.state.update(s => ({\n 734→ ...s,\n 735→ playheadPosition: Math.min(s.totalDuration, s.playheadPosition + 5000)\n 736→ }));\n 737→ }\n 738→\n 739→ // Duration editor methods\n 740→ openDurationEditor(): void {\n 741→ this.editedDuration = this.state().totalDuration / 1000;\n 742→ this.showDurationEditor.set(true);\n 743→ }\n 744→\n 745→ closeDurationEditor(): void {\n 746→ this.showDurationEditor.set(false);\n 747→ }\n 748→\n 749→ onDurationInputChange(event: Event): void {\n 750→ const input = event.target as HTMLInputElement;\n 751→ const value = parseFloat(input.value);\n 752→ if (!isNaN(value) && value > 0) {\n 753→ this.editedDuration = value;\n 754→ }\n 755→ }\n 756→\n 757→ saveDuration(): void {\n 758→ const newDurationMs = Math.max(1000, this.editedDuration * 1000); // At least 1 second\n 759→ this.state.update(s => ({\n 760→ ...s,\n 761→ totalDuration: newDurationMs,\n 762→ // Ensure playhead doesn't exceed new duration\n 763→ playheadPosition: Math.min(s.playheadPosition, newDurationMs)\n 764→ }));\n 765→ this.closeDurationEditor();\n 766→ }\n 767→\n 768→ // Media library methods\n 769→ openMediaLibrary(trackId: string): void {\n 770→ this.mediaLibraryTargetTrackId = trackId;\n 771→ this.showMediaLibrary.set(true);\n 772→ }\n 773→\n 774→ closeMediaLibrary(): void {\n 775→ this.showMediaLibrary.set(false);\n 776→ this.mediaLibraryTargetTrackId = null;\n 777→ }\n 778→\n 779→ onMediaSelected(media: MediaLibraryItem): void {\n 780→ if (!this.mediaLibraryTargetTrackId) return;\n 781→\n 782→ const currentState = this.state();\n 783→ const track = currentState.tracks.find(t => t.id === this.mediaLibraryTargetTrackId);\n 784→\n 785→ if (!track) return;\n 786→\n 787→ const playheadTime = currentState.playheadPosition;\n 788→ const totalDuration = currentState.totalDuration;\n 789→\n 790→ // Determine the start time for the new item using the service\n 791→ const startTime = this.dragDropService.calculateNewItemStartTime(\n 792→ playheadTime,\n 793→ track.items,\n 794→ this.SNAP_PROXIMITY_MS\n 795→ );\n 796→\n 797→ // Ensure item doesn't exceed totalDuration\n 798→ const maxAllowedDuration = totalDuration - startTime;\n 799→ const finalDuration = Math.min(media.duration, maxAllowedDuration);\n 800→\n 801→ // Verify that the new item doesn't overlap with any existing items\n 802→ const testItem: MediaItem = {\n 803→ id: 'temp',\n 804→ type: media.type,\n 805→ startTime,\n 806→ duration: finalDuration,\n 807→ trackId: this.mediaLibraryTargetTrackId,\n 808→ name: '',\n 809→ isPlaceholder: false\n 810→ };\n 811→\n 812→ // Validate and adjust position if needed\n 813→ const validatedStartTime = this.dragDropService.validateItemPosition(testItem, track.items);\n 814→\n 815→ // Recalculate duration limit if position was adjusted\n 816→ const adjus****************ation = totalDuration - validatedStartTime;\n 817→ const adjustedDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n 818→\n 819→ // Create the final non-overlapping item\n 820→ const newItem: MediaItem = {\n 821→ id: `item-${Date.now()}`,\n 822→ type: media.type,\n 823→ startTime: validatedStartTime,\n 824→ duration: adjustedDuration,\n 825→ trackId: this.mediaLibraryTargetTrackId,\n 826→ name: media.name,\n 827→ isPlaceholder: false\n 828→ };\n 829→\n 830→ // Set maxDuration for audio and video\n 831→ if (media.type === MediaType.VIDEO) {\n 832→ newItem.maxDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n 833→ } else if (media.type === MediaType.AUDIO) {\n 834→ newItem.maxDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n 835→ }\n 836→\n 837→ this.state.update(s => ({\n 838→ ...s,\n 839→ tracks: s.tracks.map(t =>\n 840→ t.id === this.mediaLibraryTargetTrackId\n 841→ ? { ...t, items: [...t.items, newItem] }\n 842→ : t\n 843→ )\n 844→ }));\n 845→\n 846→ // Close the media library after selection\n 847→ this.closeMediaLibrary();\n 848→ }\n 849→\n 850→ /**\n 851→ * Trim (split) the selected media item at the playhead position.\n 852→ * Creates two separate items from the original media.\n 853→ */\n 854→ trimSelectedMedia(): void {\n 855→ const currentState = this.state();\n 856→ const selectedItemId = currentState.selectedItemId;\n 857→\n 858→ if (!selectedItemId) {\n 859→ return;\n 860→ }\n 861→\n 862→ // Find the selected item and its track\n 863→ let selectedItem: MediaItem | null = null;\n 864→ let selectedTrack: Track | null = null;\n 865→\n 866→ for (const track of currentState.tracks) {\n 867→ const item = track.items.find(i => i.id === selectedItemId);\n 868→ if (item) {\n 869→ selectedItem = item;\n 870→ selectedTrack = track;\n 871→ break;\n 872→ }\n 873→ }\n 874→\n 875→ if (!selectedItem || !selectedTrack) {\n 876→ return;\n 877→ }\n 878→\n 879→ const playheadTime = currentState.playheadPosition;\n 880→ const itemStart = selectedItem.startTime;\n 881→ const itemEnd = itemStart + selectedItem.duration;\n 882→\n 883→ // Check if playhead is within the selected media item\n 884→ if (playheadTime <= itemStart || playheadTime >= itemEnd) {\n 885→ // Playhead is not within the selected media - show notification\n 886→ this.notificationsComponent?.showNotification(\n 887→ 'Position the playhead within the selected media to trim it.',\n 888→ 'warning'\n 889→ );\n 890→ return;\n 891→ }\n 892→\n 893→ // Ensure both parts will have at least MIN_ITEM_DURATION\n 894→ const firstPartDuration = playheadTime - itemStart;\n 895→ const secondPartDuration = itemEnd - playheadTime;\n 896→\n 897→ if (firstPartDuration < this.MIN_ITEM_DURATION || secondPartDuration < this.MIN_ITEM_DURATION) {\n 898→ this.notificationsComponent?.showNotification(\n 899→ 'Cannot trim: resulting parts would be too short.',\n 900→ 'warning'\n 901→ );\n 902→ return;\n 903→ }\n 904→\n 905→ // Calculate mediaStartTime adjustments\n 906→ const origi************tTime = selectedItem.mediaStartTime || 0;\n 907→ const secon**************tTime = origi************tTime + firstPartDuration;\n 908→\n 909→ // Create two new items from the original\n 910→ const firstPart: MediaItem = {\n 911→ ...selectedItem,\n 912→ id: `item-${Date.now()}-1`,\n 913→ duration: firstPartDuration\n 914→ // mediaStartTime stays the same for first part\n 915→ };\n 916→\n 917→ const secondPart: MediaItem = {\n 918→ ...selectedItem,\n 919→ id: `item-${Date.now()}-2`,\n 920→ startTime: playheadTime,\n 921→ duration: secondPartDuration,\n 922→ mediaStartTime: secondPartMediaStartTime\n 923→ };\n 924→\n 925→ // Update the state: remove original, add two new parts\n 926→ this.state.update(s => ({\n 927→ ...s,\n 928→ tracks: s.tracks.map(t => {\n 929→ if (t.id === selectedTrack!.id) {\n 930→ return {\n 931→ ...t,\n 932→ items: [\n 933→ ...t.items.filter(i => i.id !== selectedItemId),\n 934→ firstPart,\n 935→ secondPart\n 936→ ]\n 937→ };\n 938→ }\n 939→ return t;\n 940→ }),\n 941→ // Deselect after trimming\n 942→ selectedItemId: null\n 943→ }));\n 944→\n 945→ this.notificationsComponent?.showNotification(\n 946→ 'Media trimmed successfully.',\n 947→ 'success'\n 948→ );\n 949→ }\n 950→\n 951→ /**\n 952→ * Copy the selected media item to the clipboard.\n 953→ * Stores a copy of the item and the track it was copied from.\n 954→ */\n 955→ copySelectedMedia(): void {\n 956→ const currentState = this.state();\n 957→ const selectedItemId = currentState.selectedItemId;\n 958→\n 959→ if (!selectedItemId) {\n 960→ return;\n 961→ }\n 962→\n 963→ // Find the selected item and its track\n 964→ let selectedItem: MediaItem | null = null;\n 965→ let selectedTrackId: string | null = null;\n 966→\n 967→ for (const track of currentState.tracks) {\n 968→ const item = track.items.find(i => i.id === selectedItemId);\n 969→ if (item) {\n 970→ selectedItem = item;\n 971→ selectedTrackId = track.id;\n 972→ break;\n 973→ }\n 974→ }\n 975→\n 976→ if (!selectedItem || !selectedTrackId) {\n 977→ return;\n 978→ }\n 979→\n 980→ // Store a copy of the item in clipboard\n 981→ this.clipboardItem.set({ ...selectedItem });\n 982→ this.clipboardSourceTrackId.set(selectedTrackId);\n 983→\n 984→ this.notificationsComponent?.showNotification(\n 985→ 'Media copied to clipboard.',\n 986→ 'success'\n 987→ );\n 988→ }\n 989→\n 990→ /**\n 991→ * Paste the clipboard media item at the playhead position.\n 992→ * Pastes on the same track where the item was copied from.\n 993→ * If there's no space at playhead position, finds the next available slot.\n 994→ */\n 995→ pasteMedia(): void {\n 996→ const copiedItem = this.clipboardItem();\n 997→ const sourceTrackId = this.clipboardSourceTrackId();\n 998→\n 999→ if (!copiedItem || !sourceTrackId) {\n 1000→ return;\n 1001→ }\n 1002→\n 1003→ const currentState = this.state();\n 1004→ const playheadTime = currentState.playheadPosition;\n 1005→ const totalDuration = currentState.totalDuration;\n 1006→\n 1007→ // Find the source track\n 1008→ let targetTrack = currentState.tracks.find(t => t.id === sourceTrackId);\n 1009→\n 1010→ // If source track no longer exists, use the first track\n 1011→ if (!targetTrack) {\n 1012→ targetTrack = currentState.tracks[0];\n 1013→ if (!targetTrack) {\n 1014→ this.notificationsComponent?.showNotification(\n 1015→ 'No tracks available to paste media.',\n 1016→ 'error'\n 1017→ );\n 1018→ return;\n 1019→ }\n 1020→ }\n 1021→\n 1022→ const itemDuration = copiedItem.duration;\n 1023→\n 1024→ // Try to find a valid position starting from playhead\n 1025→ const pastePosition = this.findPastePosition(\n 1026→ playheadTime,\n 1027→ itemDuration,\n 1028→ targetTrack.items,\n 1029→ totalDuration\n 1030→ );\n 1031→\n 1032→ if (pastePosition === null) {\n 1033→ this.notificationsComponent?.showNotification(\n 1034→ 'No space available to paste media on this track.',\n 1035→ 'warning'\n 1036→ );\n 1037→ return;\n 1038→ }\n 1039→\n 1040→ // Create a new item with a new ID\n 1041→ const newItem: MediaItem = {\n 1042→ ...copiedItem,\n 1043→ id: `item-${Date.now()}`,\n 1044→ startTime: pastePosition,\n 1045→ trackId: targetTrack.id\n 1046→ };\n 1047→\n 1048→ // Add the new item to the track\n 1049→ this.state.update(s => ({\n 1050→ ...s,\n 1051→ tracks: s.tracks.map(t =>\n 1052→ t.id === targetTrack!.id\n 1053→ ? { ...t, items: [...t.items, newItem] }\n 1054→ : t\n 1055→ )\n 1056→ }));\n 1057→\n 1058→ this.notificationsComponent?.showNotification(\n 1059→ 'Media pasted successfully.',\n 1060→ 'success'\n 1061→ );\n 1062→ }\n 1063→\n 1064→ /**\n 1065→ * Find a valid position to paste media item.\n 1066→ * First tries at the playhead position, then finds the next available gap.\n 1067→ */\n 1068→ private findPastePosition(\n 1069→ preferredPosition: number,\n 1070→ duration: number,\n 1071→ existingItems: MediaItem[],\n 1072→ totalDuration: number\n 1073→ ): number | null {\n 1074→ // Check if we can fit at the preferred position (playhead)\n 1075→ if (this.canFitAtPosition(preferredPosition, duration, existingItems, totalDuration)) {\n 1076→ return preferredPosition;\n 1077→ }\n 1078→\n 1079→ // Sort existing items by start time\n 1080→ const sortedItems = [...existingItems].sort((a, b) => a.startTime - b.startTime);\n 1081→\n 1082→ // Find all gaps on the track and try to place the item\n 1083→ const gaps = this.dragDropService.findAllGaps(sortedItems);\n 1084→\n 1085→ // First, try to find a gap that starts at or after the playhead\n 1086→ for (const gap of gaps) {\n 1087→ // Calculate actual gap size (considering totalDuration for infinite gaps)\n 1088→ const effectiveGapEnd = gap.gapEnd === Infinity ? totalDuration : gap.gapEnd;\n 1089→ const gapSize = effectiveGapEnd - gap.gapStart;\n 1090→\n 1091→ if (gap.gapStart >= preferredPosition && gapSize >= duration) {\n 1092→ return gap.gapStart;\n 1093→ }\n 1094→ }\n 1095→\n 1096→ // If no gap after playhead, try any gap that can fit the item\n 1097→ for (const gap of gaps) {\n 1098→ // Calculate actual gap size (considering totalDuration for infinite gaps)\n 1099→ const effectiveGapEnd = gap.gapEnd === Infinity ? totalDuration : gap.gapEnd;\n 1100→ const gapSize = effectiveGapEnd - gap.gapStart;\n 1101→\n 1102→ if (gapSize >= duration) {\n 1103→ return gap.gapStart;\n 1104→ }\n 1105→ }\n 1106→\n 1107→ // No suitable position found\n 1108→ return null;\n 1109→ }\n 1110→\n 1111→ /**\n 1112→ * Check if an item can fit at a specific position without overlapping.\n 1113→ */\n 1114→ private canFitAtPosition(\n 1115→ position: number,\n 1116→ duration: number,\n 1117→ existingItems: MediaItem[],\n 1118→ totalDuration: number\n 1119→ ): boolean {\n 1120→ // Check bounds\n 1121→ if (position < 0 || position + duration > totalDuration) {\n 1122→ return false;\n 1123→ }\n 1124→\n 1125→ // Check for overlaps with existing items\n 1126→ const endPosition = position + duration;\n 1127→ for (const item of existingItems) {\n 1128→ const itemEnd = item.startTime + item.duration;\n 1129→ // Check if there's an overlap\n 1130→ if (position < itemEnd && endPosition > item.startTime) {\n 1131→ return false;\n 1132→ }\n 1133→ }\n 1134→\n 1135→ return true;\n 1136→ }\n 1137→}\n 1138→\n\n<system-reminder>\nWhenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.\n</system-reminder>\n"}]},"parent_tool_use_id":null,"session_id":"d5b1bf94-1397-44f7-9390-3c57ba19d0b0","uuid":"1f4cfc8d-1751-497d-b8be-d4f723c7134e","tool_use_result":{"type":"text","file":{"filePath":"/tmp/gh-issue-solver-1764930855025/video-timeline/src/app/components/timeline/timeline.component.ts","content":"import { Component, signal, computed, ViewChild, ElementRef } from '@angular/core';\nimport { CommonModule } from '@angular/common';\nimport { MediaType, MediaItem, Track, TimelineState } from '../../models/timeline.models';\nimport { MediaLibraryComponent, MediaLibraryItem } from '../media-library/media-library.component';\nimport { Media***********onent } from '../media-toolbar/media-toolbar.component';\nimport { Notif************onent } from '../notifications/notifications.component';\nimport { Timel*************rvice } from '../../services/timeline-drag-drop.service';\n\n@Component({\n selector: 'app-timeline',\n standalone: true,\n imports: [CommonModule, MediaLibraryComponent, MediaToolbarComponent, NotificationsComponent],\n templateUrl: './timeline.component.html',\n styleUrl: './timeline.component.css'\n})\nexport class TimelineComponent {\n // Zoom levels: pixels per second\n private readonly MIN_ZOOM = 10;\n private readonly MAX_ZOOM = 200;\n private readonly ZOOM_STEP = 20;\n readonly TRACK_HEADER_WIDTH = 150; // Width of track header in pixels\n private readonly SNAP_PROXIMITY_MS = 500; // Snap to item if playhead is within 500ms\n private readonly MIN_ITEM_DURATION = 100; // Minimum item duration in milliseconds\n\n // View references\n @ViewChild('timelineRuler') timelineRuler?: ElementRef<HTMLElement>;\n @ViewChild('notifications') notificationsComponent?: NotificationsComponent;\n\n // Timeline state\n readonly state = signal<TimelineState>({\n tracks: [\n { id: '1', name: 'Track 1', order: 0, items: [] },\n { id: '2', name: 'Track 2', order: 1, items: [] }\n ],\n playheadPosition: 0,\n zoomLevel: 50, // pixels per second\n totalDuration: 120000, // 120 seconds in milliseconds\n selectedItemId: null\n });\n\n // Computed values\n readonly pixel**********econd = computed(() => {\n return this.state().zoomLevel / 1000;\n });\n\n readonly timelineWidth = computed(() => {\n const state = this.state();\n // Calculate the maximum end time across all tracks\n let maxEndTime = state.totalDuration;\n\n for (const track of state.tracks) {\n for (const item of track.items) {\n const itemEndTime = item.startTime + item.duration;\n if (itemEndTime > maxEndTime) {\n maxEndTime = itemEndTime;\n }\n }\n }\n\n return maxEndTime * this.pixelsPerMillisecond();\n });\n\n readonly timelineLineHeight = computed(() => {\n const state = this.state();\n return state.tracks.length * 60 + 32;\n });\n\n readonly playheadPosition = computed(() => {\n return this.state().playheadPosition * this.pixelsPerMillisecond();\n });\n\n readonly playh************ition = computed(() => {\n return this.playheadPosition() + this.TRACK_HEADER_WIDTH;\n });\n\n // Computed: whether a media item is currently selected\n readonly hasSelectedItem = computed(() => {\n return this.state().selectedItemId !== null;\n });\n\n // Dragging state\n private draggedItem: MediaItem | null = null;\n private draggedItemOriginalTrackId: string | null = null;\n private dragOffsetTime: number = 0; // Offset in milliseconds from item start to cursor position\n private isDraggingPlayhead = false;\n private isDraggingFromRuler = false;\n private resizingItem: { item: MediaItem; edge: 'left' | 'right' } | null = null;\n private mouseDownPosition: { x: number; y: number } | null = null; // Track mouse down position for click detection\n\n // Video preview state\n readonly isPlaying = signal<boolean>(false);\n\n // Duration editor state\n readonly showDurationEditor = signal<boolean>(false);\n private editedDuration: number = 120; // Duration in seconds\n\n // Media library state\n readonly showMediaLibrary = signal<boolean>(false);\n private mediaLibraryTargetTrackId: string | null = null;\n\n // Clipboard state for copy/paste functionality\n private readonly clipboardItem = signal<MediaItem | null>(null);\n private readonly clipb************ackId = signal<string | null>(null);\n\n // Computed: whether a media item is in clipboard\n readonly hasClipboardItem = computed(() => {\n return this.clipboardItem() !== null;\n });\n\n constructor(private dragDropService: TimelineDragDropService) {\n }\n\n // Track management\n addTrack(): void {\n const currentState = this.state();\n const newTrack: Track = {\n id: `track-${Date.now()}`,\n name: `Track ${currentState.tracks.length + 1}`,\n order: currentState.tracks.length,\n items: []\n };\n\n this.state.update(s => ({\n ...s,\n tracks: [...s.tracks, newTrack]\n }));\n }\n\n removeTrack(trackId: string): void {\n const currentState = this.state();\n if (currentState.tracks.length <= 1) {\n return; // Keep at least one track\n }\n\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.filter(t => t.id !== trackId)\n }));\n }\n\n // Zoom controls\n zoomIn(): void {\n this.state.update(s => ({\n ...s,\n zoomLevel: Math.min(s.zoomLevel + this.ZOOM_STEP, this.MAX_ZOOM)\n }));\n }\n\n zoomOut(): void {\n this.state.update(s => ({\n ...s,\n zoomLevel: Math.max(s.zoomLevel - this.ZOOM_STEP, this.MIN_ZOOM)\n }));\n }\n\n // Utility method to extract coordinates from mouse or touch events\n private getEventCoordinates(event: MouseEvent | TouchEvent): { clientX: number; clientY: number } {\n if (event instanceof MouseEvent) {\n return { clientX: event.clientX, clientY: event.clientY };\n } else {\n const touch = event.touches[0] || event.changedTouches[0];\n return { clientX: touch.clientX, clientY: touch.clientY };\n }\n }\n\n // Playhead controls\n onRulerPointerDown(event: MouseEvent | TouchEvent): void {\n event.preventDefault();\n this.isDraggingFromRuler = true;\n\n // Immediately update position on pointer down\n const target = event.currentTarget as HTMLElement;\n const rect = target.getBoundingClientRect();\n const coords = this.getEventCoordinates(event);\n // Calculate position within the ruler element\n // getBoundingClientRect() already accounts for scroll, so we don't add scrollLeft\n const x = coords.clientX - rect.left;\n const newPosition = x / this.pixelsPerMillisecond();\n\n this.state.update(s => ({\n ...s,\n playheadPosition: Math.max(0, Math.min(newPosition, s.totalDuration))\n }));\n }\n\n onPlayheadPointerDown(event: MouseEvent | TouchEvent): void {\n event.preventDefault();\n event.stopPropagation();\n this.isDraggingPlayhead = true;\n }\n\n\n // Media item drag and drop\n onMediaItemPointerDown(event: MouseEvent | TouchEvent, item: MediaItem, track: Track): void {\n const target = event.target as HTMLElement;\n\n // Check if clicking/touching on resize handle\n if (target.classList.contains('resize-handle')) {\n this.resizingItem = {\n item,\n edge: target.classList.contains('resize-handle-left') ? 'left' : 'right'\n };\n event.preventDefault();\n return;\n }\n\n const coords = this.getEventCoordinates(event);\n this.mouseDownPosition = { x: coords.clientX, y: coords.clientY };\n\n const mediaItemElement = event.currentTarget as HTMLElement;\n const rect = mediaItemElement.getBoundingClientRect();\n const clickX = coords.clientX - rect.left;\n\n // Convert pixel offset to time offset\n this.dragOffsetTime = clickX / this.pixelsPerMillisecond();\n\n this.draggedItem = item;\n this.draggedItemOriginalTrackId = track.id;\n event.preventDefault();\n }\n\n onTrackPointerDown(event: MouseEvent | TouchEvent): void {\n // Deselect when clicking/touching track background (not on media item)\n const target = event.target as HTMLElement;\n if (target.classList.contains('track')) {\n this.deselectMediaItem();\n }\n }\n\n onTrackPointerMove(event: MouseEvent | TouchEvent, track: Track): void {\n if (this.resizingItem) {\n this.handleResize(event, track);\n return;\n }\n event.preventDefault();\n event.stopPropagation();\n\n if (!this.draggedItem) return;\n\n const coords = this.getEventCoordinates(event);\n const target = event.currentTarget as HTMLElement;\n const rect = target.getBoundingClientRect();\n const x = coords.clientX - rect.left;\n const requestedStartTime = Math.max(0, x / this.pixelsPerMillisecond() - this.dragOffsetTime);\n\n this.state.update(s => {\n const updatedTracks = s.tracks.map(t => {\n if (t.id === track.id) {\n // Get all items except the dragged one for collision detection\n const otherItems = t.items.filter(i => i.id !== this.draggedItem!.id);\n\n // Fix for issue #81: Find snap targets (playhead and items on all tracks)\n const snapTargets = this.dragDropService.findSnapTargets(\n this.draggedItem!.id,\n s.tracks,\n s.playheadPosition\n );\n\n // Calculate valid position and duration considering collisions, gap fitting, and snapping\n const validPosition = this.dragDropService.getValidDragPosition(\n this.draggedItem!,\n requestedStartTime,\n otherItems,\n s.totalDuration,\n snapTargets\n );\n\n // Check if item already exists in this track\n const itemExists = t.items.some(i => i.id === this.draggedItem!.id);\n\n if (itemExists) {\n // Update position and duration in current track\n return {\n ...t,\n items: t.items.map(i =>\n i.id === this.draggedItem!.id\n ? {\n ...i,\n startTime: validPosition.startTime,\n duration: validPosition.duration,\n trackId: track.id\n }\n : i\n )\n };\n } else {\n // Add to new track with adjusted position and duration\n return {\n ...t,\n items: [\n ...otherItems,\n {\n ...this.draggedItem!,\n startTime: validPosition.startTime,\n duration: validPosition.duration,\n trackId: track.id\n }\n ]\n };\n }\n } else if (t.id === this.draggedItemOriginalTrackId && t.id !== track.id) {\n // Remove from original track only if moving to different track\n return {\n ...t,\n items: t.items.filter(i => i.id !== this.draggedItem!.id)\n };\n }\n return t;\n });\n\n // Update the original track ID to current track for smooth dragging within same track\n this.draggedItemOriginalTrackId = track.id;\n\n return { ...s, tracks: updatedTracks };\n });\n }\n\n private handleResize(event: MouseEvent | TouchEvent, track: Track): void {\n if (!this.resizingItem) return;\n\n const coords = this.getEventCoordinates(event);\n const target = event.currentTarget as HTMLElement;\n const rect = target.getBoundingClientRect();\n // Fix for issue #83: getBoundingClientRect() returns viewport-relative coordinates,\n // and coords.clientX is also viewport-relative, so we don't need to add scrollLeft\n const x = coords.clientX - rect.left;\n const timeAtCursor = x / this.pixelsPerMillisecond();\n\n this.state.update(s => {\n // Fix for issue #87: Find snap targets for resize operations\n const snapTargets = this.dragDropService.findSnapTargets(\n this.resizingItem!.item.id,\n s.tracks,\n s.playheadPosition\n );\n\n const updatedTracks = s.tracks.map(t => {\n if (t.id === track.id) {\n // Get resize bounds considering adjacent items\n const bounds = this.dragDropService.getResizeBounds(\n this.resizingItem!.item,\n t.items,\n this.resizingItem!.edge,\n s.totalDuration\n );\n\n return {\n ...t,\n items: t.items.map(i => {\n if (i.id === this.resizingItem!.item.id) {\n if (this.resizingItem!.edge === 'left') {\n // Fix for issue #89: Handle mediaStartTime when resizing from left\n // Apply snapping to left edge (start time)\n let newStartTime = Math.max(\n bounds.minTime,\n Math.min(timeAtCursor, bounds.maxTime)\n );\n\n // Apply snapping if within snap distance\n let minDistance = this.dragDropService.SNAP_DISTANCE_MS;\n for (const target of snapTargets) {\n const distance = Math.abs(newStartTime - target);\n if (distance < minDistance) {\n minDistance = distance;\n // Only snap if within bounds\n if (target >= bounds.minTime && target <= bounds.maxTime) {\n newStartTime = target;\n }\n }\n }\n\n // Calculate how much the timeline position is changing\n const deltaTime = newStartTime - i.startTime;\n const newDuration = i.duration - deltaTime;\n\n // Update media start time (trimming from source media)\n const curre***********tTime = i.mediaStartTime || 0;\n const newMediaStartTime = curre***********tTime + deltaTime;\n\n // Check if we're trying to extend beyond the start of source media\n if (newMediaStartTime < 0) {\n // Can only extend left by curre***********tTime amount\n const maxExtension = currentMediaStartTime;\n const finalStartTime = i.startTime - maxExtension;\n const finalDuration = i.duration + maxExtension;\n\n // Ensure we don't exceed maxDuration\n if (i.maxDuration && finalDuration > i.maxDuration) {\n return {\n ...i,\n startTime: finalStartTime + (finalDuration - i.maxDuration),\n duration: i.maxDuration,\n mediaStartTime: 0\n };\n }\n\n return {\n ...i,\n startTime: finalStartTime,\n duration: finalDuration,\n mediaStartTime: 0\n };\n }\n\n // Ensure media end doesn't exceed maxDuration\n if (i.maxDuration && newMediaStartTime + newDuration > i.maxDuration) {\n const maxAllowedDuration = i.maxDuration - newMediaStartTime;\n return {\n ...i,\n startTime: i.startTime + (i.duration - maxAllowedDuration),\n duration: maxAllowedDuration,\n mediaStartTime: newMediaStartTime\n };\n }\n\n return {\n ...i,\n startTime: newStartTime,\n duration: newDuration,\n mediaStartTime: newMediaStartTime\n };\n } else {\n // Fix for issue #87: Apply snapping to right edge (end time)\n let newEndTime = Math.max(\n bounds.minTime,\n Math.min(timeAtCursor, bounds.maxTime)\n );\n\n // Apply snapping if within snap distance\n let minDistance = this.dragDropService.SNAP_DISTAN | |
| [2025-12-05T10:36:17.131Z] [INFO] CE_MS;\n for (const target of snapTargets) {\n const distance = Math.abs(newEndTime - target);\n if (distance < minDistance) {\n minDistance = distance;\n // Only snap if within bounds\n if (target >= bounds.minTime && target <= bounds.maxTime) {\n newEndTime = target;\n }\n }\n }\n\n const newDuration = newEndTime - i.startTime;\n\n // Limit duration by maxDuration if specified\n const limitedDuration = i.maxDuration\n ? Math.min(newDuration, i.maxDuration)\n : newDuration;\n\n return { ...i, duration: limitedDuration };\n }\n }\n return i;\n })\n };\n }\n return t;\n });\n\n return { ...s, tracks: updatedTracks };\n });\n }\n\n onPointerUp(event: MouseEvent | TouchEvent): void {\n // Detect if this was a click/tap (not a drag) on a media item\n if (this.draggedItem && this.mouseDownPosition) {\n const coords = this.getEventCoordinates(event);\n const dx = coords.clientX - this.mouseDownPosition.x;\n const dy = coords.clientY - this.mouseDownPosition.y;\n const distance = Math.sqrt(dx * dx + dy * dy);\n\n // If pointer moved less than 5 pixels, consider it a click/tap\n if (distance < 5) {\n this.selectMediaItem(this.draggedItem.id);\n }\n }\n\n this.draggedItem = null;\n this.draggedItemOriginalTrackId = null;\n this.dragOffsetTime = 0;\n this.isDraggingPlayhead = false;\n this.isDraggingFromRuler = false;\n this.resizingItem = null;\n this.mouseDownPosition = null;\n }\n\n onDocumentPointerMove(event: MouseEvent | TouchEvent): void {\n if (this.isDraggingPlayhead || this.isDraggingFromRuler) {\n // Fix for issue #50: Use ViewChild reference to ensure we use the exact same element as onRulerPointerDown\n if (!this.timelineRuler) {\n return;\n }\n\n const coords = this.getEventCoordinates(event);\n const rulerElement = this.timelineRuler.nativeElement;\n // Use the same calculation as onRulerPointerDown\n // getBoundingClientRect() already accounts for scroll, so we don't add scrollLeft\n const rect = rulerElement.getBoundingClientRect();\n const x = coords.clientX - rect.left;\n const newPosition = x / this.pixelsPerMillisecond();\n\n this.state.update(s => ({\n ...s,\n playheadPosition: Math.max(0, Math.min(newPosition, s.totalDuration))\n }));\n }\n\n // Fix for issue #96: Handle media item dragging and resizing at document level for touch events\n // This allows dragging between tracks on mobile devices\n if (event instanceof TouchEvent) {\n if (this.draggedItem) {\n // Find which track the touch is currently over\n const targetTrack = this.findTrackAtCoordinates(this.getEventCoordinates(event));\n if (targetTrack) {\n // Reuse existing drag logic\n this.onTrackPointerMove(event, targetTrack);\n }\n } else if (this.resizingItem) {\n // Find the track that contains the resizing item\n const targetTrack = this.findTrackContainingItem(this.resizingItem.item.id);\n if (targetTrack) {\n // Reuse existing resize logic\n this.handleResize(event, targetTrack);\n }\n }\n }\n }\n\n // Helper method to find which track is at the given Y coordinate\n private findTrackAtCoordinates(coords: { clientX: number; clientY: number }): Track | null {\n const trackElements = document.querySelectorAll('.track');\n for (const trackElement of Array.from(trackElements)) {\n const rect = trackElement.getBoundingClientRect();\n if (coords.clientY >= rect.top && coords.clientY <= rect.bottom) {\n const trackIndex = Array.from(trackElements).indexOf(trackElement);\n const tracks = this.state().tracks;\n if (trackIndex >= 0 && trackIndex < tracks.length) {\n return tracks[trackIndex];\n }\n }\n }\n return null;\n }\n\n // Helper method to find the track containing a specific item\n private findTrackContainingItem(itemId: string): Track | null {\n const currentState = this.state();\n for (const track of currentState.tracks) {\n if (track.items.some(item => item.id === itemId)) {\n return track;\n }\n }\n return null;\n }\n\n // Helper methods\n getItemStyle(item: MediaItem) {\n return {\n left: `${item.startTime * this.pixelsPerMillisecond()}px`,\n width: `${item.duration * this.pixelsPerMillisecond()}px`\n };\n }\n\n getMediaTypeClass(type: MediaType): string {\n return `media-${type}`;\n }\n\n formatTime(milliseconds: number): string {\n const seconds = Math.floor(milliseconds / 1000);\n const minutes = Math.floor(seconds / 60);\n const remainingSeconds = seconds % 60;\n const cs = Math.floor((milliseconds % 1000) / 10);\n return `${minutes}:${remainingSeconds.toString().padStart(2, '0')}.${cs.toString().padStart(2, '0')}`;\n }\n\n /**\n * Calculate appropriate time interval for markers based on zoom level\n * to prevent marker labels from overlapping\n */\n private getMarkerInterval(): number {\n // Minimum spacing between markers in pixels to prevent overlap\n // Enough space for \"0:00.000\" text (about 50-60px)\n const MIN_M***********NG_PX = 60;\n\n // Calculate how much time represents MIN_M***********NG_PX at current zoom\n const pixelsPerMs = this.pixelsPerMillisecond();\n const minTimeSpacing = MIN_M***********NG_PX / pixelsPerMs;\n\n // Define possible intervals (in ms): 100ms, 250ms, 500ms, 1s, 2s, 5s, 10s, 30s, 60s\n const intervals = [100, 250, 500, 1000, 2000, 5000, 10000, 30000, 60000];\n\n // Find the smallest interval that's larger than or equal to minTimeSpacing\n for (const interval of intervals) {\n if (interval >= minTimeSpacing) {\n return interval;\n }\n }\n\n // If even 60s is too small, use larger intervals\n return Math.ceil(minTimeSpacing / 60000) * 60000;\n }\n\n getTimeMarkers(): { position: number; label: string }[] {\n const markers: { position: number; label: string }[] = [];\n const stepMs = this.getMarkerInterval(); // Dynamic interval based on zoom level\n\n // Fix for issue #85: Do not show the last time mark at totalDuration\n // to prevent container expansion from the text label\n for (let time = 0; time < this.state().totalDuration; time += stepMs) {\n markers.push({\n position: time * this.pixelsPerMillisecond(),\n label: this.formatTime(time)\n });\n }\n\n return markers;\n }\n\n // Add placeholder media item\n addMediaItem(type: MediaType, trackId: string): void {\n const currentState = this.state();\n const track = currentState.tracks.find(t => t.id === trackId);\n\n if (!track) return;\n\n const playheadTime = currentState.playheadPosition;\n const totalDuration = currentState.totalDuration;\n const newItemDuration = type === MediaType.IMAGE ? 5000 : 3000;\n\n // Determine the start time for the new item using the service\n const startTime = this.dragDropService.calculateNewItemStartTime(\n playheadTime,\n track.items,\n this.SNAP_PROXIMITY_MS\n );\n\n // Fix for issue #48: Ensure new item doesn't exceed totalDuration\n const maxAllowedDuration = totalDuration - startTime;\n const finalDuration = Math.min(newItemDuration, maxAllowedDuration);\n\n // Fix for issue #64: Verify that the new item doesn't overlap with any existing items\n const testItem: MediaItem = {\n id: 'temp',\n type,\n startTime,\n duration: finalDuration,\n trackId,\n name: '',\n isPlaceholder: true\n };\n\n // Validate and adjust position if needed\n const validatedStartTime = this.dragDropService.validateItemPosition(testItem, track.items);\n\n // Recalculate duration limit if position was adjusted\n const adjus****************ation = totalDuration - validatedStartTime;\n const adjustedDuration = Math.min(newItemDuration, adjustedMaxAllowedDuration);\n\n // Create the final non-overlapping item\n const newItem: MediaItem = {\n id: `item-${Date.now()}`,\n type,\n startTime: validatedStartTime,\n duration: adjustedDuration,\n trackId,\n name: `${type} placeholder`,\n isPlaceholder: true\n };\n\n // Set maxDuration for audio and video placeholders\n if (type === MediaType.VIDEO) {\n newItem.maxDuration = Math.min(10000, adjustedMaxAllowedDuration); // 10 seconds default for video\n } else if (type === MediaType.AUDIO) {\n newItem.maxDuration = Math.min(15000, adjustedMaxAllowedDuration); // 15 seconds default for audio\n }\n\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t =>\n t.id === trackId\n ? { ...t, items: [...t.items, newItem] }\n : t\n )\n }));\n }\n\n removeMediaItem(itemId: string, trackId: string): void {\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t =>\n t.id === trackId\n ? { ...t, items: t.items.filter(i => i.id !== itemId) }\n : t\n ),\n // Deselect if removing selected item\n selectedItemId: s.selectedItemId === itemId ? null : s.selectedItemId\n }));\n }\n\n // Media selection\n selectMediaItem(itemId: string): void {\n this.state.update(s => ({\n ...s,\n selectedItemId: itemId\n }));\n }\n\n deselectMediaItem(): void {\n this.state.update(s => ({\n ...s,\n selectedItemId: null\n }));\n }\n\n isItemSelected(itemId: string): boolean {\n return this.state().selectedItemId === itemId;\n }\n\n readonly MediaType = MediaType;\n\n // Video preview controls\n togglePlayback(): void {\n this.isPlaying.update(playing => !playing);\n }\n\n skipBackward(): void {\n this.state.update(s => ({\n ...s,\n playheadPosition: Math.max(0, s.playheadPosition - 5000)\n }));\n }\n\n skipForward(): void {\n this.state.update(s => ({\n ...s,\n playheadPosition: Math.min(s.totalDuration, s.playheadPosition + 5000)\n }));\n }\n\n // Duration editor methods\n openDurationEditor(): void {\n this.editedDuration = this.state().totalDuration / 1000;\n this.showDurationEditor.set(true);\n }\n\n closeDurationEditor(): void {\n this.showDurationEditor.set(false);\n }\n\n onDurationInputChange(event: Event): void {\n const input = event.target as HTMLInputElement;\n const value = parseFloat(input.value);\n if (!isNaN(value) && value > 0) {\n this.editedDuration = value;\n }\n }\n\n saveDuration(): void {\n const newDurationMs = Math.max(1000, this.editedDuration * 1000); // At least 1 second\n this.state.update(s => ({\n ...s,\n totalDuration: newDurationMs,\n // Ensure playhead doesn't exceed new duration\n playheadPosition: Math.min(s.playheadPosition, newDurationMs)\n }));\n this.closeDurationEditor();\n }\n\n // Media library methods\n openMediaLibrary(trackId: string): void {\n this.mediaLibraryTargetTrackId = trackId;\n this.showMediaLibrary.set(true);\n }\n\n closeMediaLibrary(): void {\n this.showMediaLibrary.set(false);\n this.mediaLibraryTargetTrackId = null;\n }\n\n onMediaSelected(media: MediaLibraryItem): void {\n if (!this.mediaLibraryTargetTrackId) return;\n\n const currentState = this.state();\n const track = currentState.tracks.find(t => t.id === this.mediaLibraryTargetTrackId);\n\n if (!track) return;\n\n const playheadTime = currentState.playheadPosition;\n const totalDuration = currentState.totalDuration;\n\n // Determine the start time for the new item using the service\n const startTime = this.dragDropService.calculateNewItemStartTime(\n playheadTime,\n track.items,\n this.SNAP_PROXIMITY_MS\n );\n\n // Ensure item doesn't exceed totalDuration\n const maxAllowedDuration = totalDuration - startTime;\n const finalDuration = Math.min(media.duration, maxAllowedDuration);\n\n // Verify that the new item doesn't overlap with any existing items\n const testItem: MediaItem = {\n id: 'temp',\n type: media.type,\n startTime,\n duration: finalDuration,\n trackId: this.mediaLibraryTargetTrackId,\n name: '',\n isPlaceholder: false\n };\n\n // Validate and adjust position if needed\n const validatedStartTime = this.dragDropService.validateItemPosition(testItem, track.items);\n\n // Recalculate duration limit if position was adjusted\n const adjus****************ation = totalDuration - validatedStartTime;\n const adjustedDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n\n // Create the final non-overlapping item\n const newItem: MediaItem = {\n id: `item-${Date.now()}`,\n type: media.type,\n startTime: validatedStartTime,\n duration: adjustedDuration,\n trackId: this.mediaLibraryTargetTrackId,\n name: media.name,\n isPlaceholder: false\n };\n\n // Set maxDuration for audio and video\n if (media.type === MediaType.VIDEO) {\n newItem.maxDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n } else if (media.type === MediaType.AUDIO) {\n newItem.maxDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n }\n\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t =>\n t.id === this.mediaLibraryTargetTrackId\n ? { ...t, items: [...t.items, newItem] }\n : t\n )\n }));\n\n // Close the media library after selection\n this.closeMediaLibrary();\n }\n\n /**\n * Trim (split) the selected media item at the playhead position.\n * Creates two separate items from the original media.\n */\n trimSelectedMedia(): void {\n const currentState = this.state();\n const selectedItemId = currentState.selectedItemId;\n\n if (!selectedItemId) {\n return;\n }\n\n // Find the selected item and its track\n let selectedItem: MediaItem | null = null;\n let selectedTrack: Track | null = null;\n\n for (const track of currentState.tracks) {\n const item = track.items.find(i => i.id === selectedItemId);\n if (item) {\n selectedItem = item;\n selectedTrack = track;\n break;\n }\n }\n\n if (!selectedItem || !selectedTrack) {\n return;\n }\n\n const playheadTime = currentState.playheadPosition;\n const itemStart = selectedItem.startTime;\n const itemEnd = itemStart + selectedItem.duration;\n\n // Check if playhead is within the selected media item\n if (playheadTime <= itemStart || playheadTime >= itemEnd) {\n // Playhead is not within the selected media - show notification\n this.notificationsComponent?.showNotification(\n 'Position the playhead within the selected media to trim it.',\n 'warning'\n );\n return;\n }\n\n // Ensure both parts will have at least MIN_ITEM_DURATION\n const firstPartDuration = playheadTime - itemStart;\n const secondPartDuration = itemEnd - playheadTime;\n\n if (firstPartDuration < this.MIN_ITEM_DURATION || secondPartDuration < this.MIN_ITEM_DURATION) {\n this.notificationsComponent?.showNotification(\n 'Cannot trim: resulting parts would be too short.',\n 'warning'\n );\n return;\n }\n\n // Calculate mediaStartTime adjustments\n const origi************tTime = selectedItem.mediaStartTime || 0;\n const secon**************tTime = origi************tTime + firstPartDuration;\n\n // Create two new items from the original\n const firstPart: MediaItem = {\n ...selectedItem,\n id: `item-${Date.now()}-1`,\n duration: firstPartDuration\n // mediaStartTime stays the same for first part\n };\n\n const secondPart: MediaItem = {\n ...selectedItem,\n id: `item-${Date.now()}-2`,\n startTime: playheadTime,\n duration: secondPartDuration,\n mediaStartTime: secondPartMediaStartTime\n };\n\n // Update the state: remove original, add two new parts\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t => {\n if (t.id === selectedTrack!.id) {\n return {\n ...t,\n items: [\n ...t.items.filter(i => i.id !== selectedItemId),\n firstPart,\n secondPart\n ]\n };\n }\n return t;\n }),\n // Deselect after trimming\n selectedItemId: null\n }));\n\n this.notificationsComponent?.showNotification(\n 'Media trimmed successfully.',\n 'success'\n );\n }\n\n /**\n * Copy the selected media item to the clipboard.\n * Stores a copy of the item and the track it was copied from.\n */\n copySelectedMedia(): void {\n const currentState = this.state();\n const selectedItemId = currentState.selectedItemId;\n\n if (!selectedItemId) {\n return;\n }\n\n // Find the selected item and its track\n let selectedItem: MediaItem | null = null;\n let selectedTrackId: string | null = null;\n\n for (const track of currentState.tracks) {\n const item = track.items.find(i => i.id === selectedItemId);\n if (item) {\n selectedItem = item;\n selectedTrackId = track.id;\n break;\n }\n }\n\n if (!selectedItem || !selectedTrackId) {\n return;\n }\n\n // Store a copy of the item in clipboard\n this.clipboardItem.set({ ...selectedItem });\n this.clipboardSourceTrackId.set(selectedTrackId);\n\n this.notificationsComponent?.showNotification(\n 'Media copied to clipboard.',\n 'success'\n );\n }\n\n /**\n * Paste the clipboard media item at the playhead position.\n * Pastes on the same track where the item was copied from.\n * If there's no space at playhead position, finds the next available slot.\n */\n pasteMedia(): void {\n const copiedItem = this.clipboardItem();\n const sourceTrackId = this.clipboardSourceTrackId();\n\n if (!copiedItem || !sourceTrackId) {\n return;\n }\n\n const currentState = this.state();\n const playheadTime = currentState.playheadPosition;\n const totalDuration = currentState.totalDuration;\n\n // Find the source track\n let targetTrack = currentState.tracks.find(t => t.id === sourceTrackId);\n\n // If source track no longer exists, use the first track\n if (!targetTrack) {\n targetTrack = currentState.tracks[0];\n if (!targetTrack) {\n this.notificationsComponent?.showNotification(\n 'No tracks available to paste media.',\n 'error'\n );\n return;\n }\n }\n\n const itemDuration = copiedItem.duration;\n\n // Try to find a valid position starting from playhead\n const pastePosition = this.findPastePosition(\n playheadTime,\n itemDuration,\n targetTrack.items,\n totalDuration\n );\n\n if (pastePosition === null) {\n this.notificationsComponent?.showNotification(\n 'No space available to paste media on this track.',\n 'warning'\n );\n return;\n }\n\n // Create a new item with a new ID\n const newItem: MediaItem = {\n ...copiedItem,\n id: `item-${Date.now()}`,\n startTime: pastePosition,\n trackId: targetTrack.id\n };\n\n // Add the new item to the track\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t =>\n t.id === targetTrack!.id\n ? { ...t, items: [...t.items, newItem] }\n : t\n )\n }));\n\n this.notificationsComponent?.showNotification(\n 'Media pasted successfully.',\n 'success'\n );\n }\n\n /**\n * Find a valid position to paste media item.\n * First tries at the playhead position, then finds the next available gap.\n */\n private findPastePosition(\n preferredPosition: number,\n duration: number,\n existingItems: MediaItem[],\n totalDuration: number\n ): number | null {\n // Check if we can fit at the preferred position (playhead)\n if (this.canFitAtPosition(preferredPosition, duration, existingItems, totalDuration)) {\n return preferredPosition;\n }\n\n // Sort existing items by start time\n const sortedItems = [...existingItems].sort((a, b) => a.startTime - b.startTime);\n\n // Find all gaps on the track and try to place the item\n const gaps = this.dragDropService.findAllGaps(sortedItems);\n\n // First, try to find a gap that starts at or after the playhead\n for (const gap of gaps) {\n // Calculate actual gap size (considering totalDuration for infinite gaps)\n const effectiveGapEnd = gap.gapEnd === Infinity ? totalDuration : gap.gapEnd;\n const gapSize = effectiveGapEnd - gap.gapStart;\n\n if (gap.gapStart >= preferredPosition && gapSize >= duration) {\n return gap.gapStart;\n }\n }\n\n // If no gap after playhead, try any gap that can fit the item\n for (const gap of gaps) {\n // Calculate actual gap size (considering totalDuration for infinite gaps)\n const effectiveGapEnd = gap.gapEnd === Infinity ? totalDuration : gap.gapEnd;\n const gapSize = effectiveGapEnd - gap.gapStart;\n\n if (gapSize >= duration) {\n return gap.gapStart;\n }\n }\n\n // No suitable position found\n return null;\n }\n\n /**\n * Check if an item can fit at a specific position without overlapping.\n */\n private canFitAtPosition(\n position: number,\n duration: number,\n existingItems: MediaItem[],\n totalDuration: number\n ): boolean {\n // Check bounds\n if (position < 0 || position + duration > totalDuration) {\n return false;\n }\n\n // Check for overlaps with existing items\n const endPosition = position + duration;\n for (const item of existingItems) {\n const itemEnd = item.startTime + item.duration;\n // Check if there's an overlap\n if (position < itemEnd && endPosition > item.startTime) {\n return false;\n }\n }\n\n return true;\n }\n}\n","numLines":1138,"startLine":1,"totalLines":1138}}} | |
| [2025-12-05T10:36:22.785Z] [INFO] { | |
| "type": "assistant", | |
| "message": { | |
| "model": "claude-opus-4-5-20251101", | |
| "id": "msg_01C5nuxkJECEX89g9D1xMHxi", | |
| "type": "message", | |
| "role": "assistant", | |
| "content": [ | |
| { | |
| "type": "tool_use", | |
| "id": "toolu_01Uxj9pGunzDizYxRhvSX1dq", | |
| "name": "Read", | |
| "input": { | |
| "file_path": "/tmp/gh-issue-solver-1764930855025/video-timeline/src/app/components/timeline/timeline.component.html" | |
| } | |
| } | |
| ], | |
| "stop_reason": null, | |
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| "usage": { | |
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| "service_tier": "standard" | |
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| "context_management": null | |
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| "parent_tool_use_id": null, | |
| "session_id": "d5b1bf94-1397-44f7-9390-3c57ba19d0b0", | |
| "uuid": "d4926639-2d83-42ad-b4e9-0ddf2f8ecba3" | |
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| [2025-12-05T10:36:23.322Z] [INFO] { | |
| "type": "assistant", | |
| "message": { | |
| "model": "claude-opus-4-5-20251101", | |
| "id": "msg_01C5nuxkJECEX89g9D1xMHxi", | |
| "type": "message", | |
| "role": "assistant", | |
| "content": [ | |
| { | |
| "type": "tool_use", | |
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| "file_path": "/tmp/gh-issue-solver-1764930855025/video-timeline/src/app/components/media-library/media-library.component.ts" | |
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| } | |
| [2025-12-05T10:36:23.783Z] [INFO] {"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01Uxj9pGunzDizYxRhvSX1dq","type":"tool_result","content":" 1→<div class=\"flex flex-col h-full bg-[#1e1e1e] text-gray-200 select-none\" (mouseup)=\"onPointerUp($event)\" (mousemove)=\"onDocumentPointerMove($event)\" (touchend)=\"onPointerUp($event)\" (touchmove)=\"onDocumentPointerMove($event)\">\n 2→ <!-- Toolbar -->\n 3→ <div class=\"flex justify-between items-center px-4 py-3 bg-[#252525] border-b border-[#3a3a3a]\">\n 4→ <h2 class=\"text-lg font-semibold m-0\">VideoEditor</h2>\n 5→ <div class=\"flex gap-4 items-center\">\n 6→ <div class=\"font-mono text-sm px-3 py-1 bg-[#2a2a2a] rounded cursor-pointer hover:bg-[#3a3a3a] transition-colors\"\n 7→ (click)=\"openDurationEditor()\"\n 8→ title=\"Click to change total duration\">\n 9→ {{ formatTime(state().playheadPosition) }} / {{ formatTime(state().totalDuration) }}\n 10→ </div>\n 11→ </div>\n 12→ </div>\n 13→\n 14→ <!-- Video Preview Area -->\n 15→ <div class=\"flex justify-center items-center py-6 bg-[#252525] border-b border-[#3a3a3a]\">\n 16→ <div class=\"flex flex-col items-center gap-3\">\n 17→ <!-- Video Preview Placeholder -->\n 18→ <div class=\"w-[640px] h-[360px] bg-[#1a1a1a] rounded-lg border border-[#3a3a3a] flex items-center justify-center\">\n 19→ <div class=\"flex flex-col items-center gap-2 text-gray-400\">\n 20→ <i class=\"bi bi-film text-6xl\"></i>\n 21→ <span class=\"text-sm\">Video preview</span>\n 22→ </div>\n 23→ </div>\n 24→\n 25→ <!-- Playback Controls -->\n 26→ <div class=\"flex gap-2 items-center\">\n 27→ <button (click)=\"skipBackward()\" class=\"px-3 py-2 bg-[#3a3a3a] text-white border-none rounded cursor-pointer text-base transition-colors hover:bg-[#4a4a4a] flex items-center gap-1.5\" title=\"Back 5 seconds\">\n 28→ <i class=\"bi bi-skip-backward-fill\"></i>\n 29→ <span class=\"text-xs\">5s</span>\n 30→ </button>\n 31→ <button (click)=\"togglePlayback()\" class=\"px-4 py-2 bg-blue-600 text-white border-none rounded cursor-pointer text-xl transition-colors hover:bg-blue-700\" [title]=\"isPlaying() ? 'Pause' : 'Play'\">\n 32→ @if (isPlaying()) {\n 33→ <i class=\"bi bi-pause-fill\"></i>\n 34→ } @else {\n 35→ <i class=\"bi bi-play-fill\"></i>\n 36→ }\n 37→ </button>\n 38→ <button (click)=\"skipForward()\" class=\"px-3 py-2 bg-[#3a3a3a] text-white border-none rounded cursor-pointer text-base transition-colors hover:bg-[#4a4a4a] flex items-center gap-1.5\" title=\"Forward 5 seconds\">\n 39→ <span class=\"text-xs\">5s</span>\n 40→ <i class=\"bi bi-skip-forward-fill\"></i>\n 41→ </button>\n 42→ </div>\n 43→ </div>\n 44→ </div>\n 45→\n 46→ <div class=\"relative\">\n 47→ <!-- Media Toolbar (positioned absolutely above timeline, aligned with left panel) -->\n 48→ <app-media-toolbar\n 49→ [isVisible]=\"hasSelectedItem()\"\n 50→ [hasClipboard]=\"hasClipboardItem()\"\n 51→ (trimMedia)=\"trimSelectedMedia()\"\n 52→ (copyMedia)=\"copySelectedMedia()\"\n 53→ (pasteMedia)=\"pasteMedia()\">\n 54→ </app-media-toolbar>\n 55→ </div>\n 56→ <!-- Timeline content wrapper with unified horizontal scrolling -->\n 57→ <div class=\"flex-1 flex flex-col overflow-y-auto overflow-x-auto relative\">\n 58→ <!-- Timeline Ruler (sticky to stay visible during vertical scroll) -->\n 59→ <div class=\"flex border-b border-[#3a3a3a] flex-shrink-0 sticky top-0 z-10 bg-[#2a2a2a] relative\">\n 60→ <!-- Control area to align with track headers -->\n 61→ <div class=\"min-w-[150px] bg-[#252525] border-r border-[#3a3a3a] flex justify-center items-center gap-1 p-2\">\n 62→ <button (click)=\"addTrack()\" class=\"px-2 py-1 text-white border-none rounded cursor-pointer text-sm opacity-70 transition-opacity hover:opacity-100\" title=\"Add track\">\n 63→ <i class=\"bi bi-plus-circle\"></i>\n 64→ </button>\n 65→ <button (click)=\"zoomOut()\" class=\"px-2 py-1 text-white border-none rounded cursor-pointer text-sm opacity-70 transition-opacity hover:opacity-100\" title=\"Zoom out\">\n 66→ <i class=\"bi bi-zoom-out\"></i>\n 67→ </button>\n 68→ <button (click)=\"zoomIn()\" class=\"px-2 py-1 text-white border-none rounded cursor-pointer text-sm opacity-70 transition-opacity hover:opacity-100\" title=\"Zoom in\">\n 69→ <i class=\"bi bi-zoom-in\"></i>\n 70→ </button>\n 71→ </div>\n 72→ <!-- Ruler content -->\n 73→ <div class=\"relative h-10 bg-[#2a2a2a] flex-1\">\n 74→ <div class=\"relative h-full min-w-full cursor-pointer\"\n 75→ [style.width.px]=\"timelineWidth()\"\n 76→ (mousedown)=\"onRulerPointerDown($event)\"\n 77→ (touchstart)=\"onRulerPointerDown($event)\"\n 78→ #timelineRuler>\n 79→ @for (marker of getTimeMarkers(); track marker.position) {\n 80→ <div class=\"absolute top-0 h-full\" [style.left.px]=\"marker.position\">\n 81→ <div class=\"w-px h-[60%] bg-[#4a4a4a]\"></div>\n 82→ <div class=\"text-[10px] text-gray-400 mt-0.5 whitespace-nowrap\">{{ marker.label }}</div>\n 83→ </div>\n 84→ }\n 85→ </div>\n 86→ <!-- Playhead - positioned in ruler container to stay visible -->\n 87→ <div class=\"absolute top-0 pointer-events-none z-[5]\"\n 88→ [style.left.px]=\"playheadPosition()\"\n 89→ (mousedown)=\"onPlayheadPointerDown($event)\"\n 90→ (touchstart)=\"onPlayheadPointerDown($event)\">\n 91→ <div class=\"absolute -left-1.5 top-4 w-3 h-3 bg-red-500 rounded-sm cursor-ew-resize pointer-events-auto\"></div>\n 92→ <div class=\"absolute left-0 top-4 w-0.5 bg-red-500 pointer-events-none\" [style.height.px]=\"timelineLineHeight()\"></div>\n 93→ </div>\n 94→ </div>\n 95→ </div>\n 96→\n 97→ <!-- Tracks -->\n 98→ <div class=\"flex-1\" [style.width.px]=\"timelineWidth() + TRACK_HEADER_WIDTH\">\n 99→ @for (track of state().tracks; track track.id; let i = $index) {\n 100→ <div class=\"flex border-b border-[#3a3a3a] min-h-[60px]\">\n 101→ <!-- Track header -->\n 102→ <div class=\"flex items-center justify-between min-w-[150px] p-2 bg-[#252525] border-r border-[#3a3a3a]\">\n 103→ <span class=\"text-sm font-medium\">Track {{ i + 1 }}</span>\n 104→ <div class=\"flex gap-1\">\n 105→ <button\n 106→ (click)=\"openMediaLibrary(track.id)\"\n 107→ class=\"p-1 text-base text-white border-none bg-transparent cursor-pointer transition-opacity opacity-70 hover:opacity-100\"\n 108→ title=\"Add media\">\n 109→ <i class=\"bi bi-plus-circle\"></i>\n 110→ </button>\n 111→ <button\n 112→ (click)=\"removeTrack(track.id)\"\n 113→ class=\"p-1 text-base text-red-500 border-none bg-transparent cursor-pointer transition-opacity opacity-70 hover:opacity-100\"\n 114→ title=\"Remove track\">\n 115→ <i class=\"bi bi-trash\"></i>\n 116→ </button>\n 117→ </div>\n 118→ </div>\n 119→\n 120→ <!-- Track timeline -->\n 121→ <div class=\"relative flex-1\">\n 122→ <div class=\"track relative bg-[#1a1a1a] min-h-[60px]\"\n 123→ (mousemove)=\"onTrackPointerMove($event, track)\"\n 124→ (mousedown)=\"onTrackPointerDown($event)\"\n 125→ (touchmove)=\"onTrackPointerMove($event, track)\"\n 126→ (touchstart)=\"onTrackPointerDown($event)\">\n 127→\n 128→ @for (item of track.items; track item.id) {\n 129→ <div class=\"media-item group absolute h-12 top-1.5 rounded border-2 border-transparent cursor-move flex items-center overflow-hidden transition-colors hover:border-white/30\"\n 130→ [class]=\"getMediaTypeClass(item.type)\"\n 131→ [class.selected]=\"isItemSelected(item.id)\"\n 132→ [style.left]=\"getItemStyle(item).left\"\n 133→ [style.width]=\"getItemStyle(item).width\"\n 134→ (mousedown)=\"onMediaItemPointerDown($event, item, track)\"\n 135→ (touchstart)=\"onMediaItemPointerDown($event, item, track)\">\n 136→\n 137→ <div class=\"resize-handle resize-handle-left absolute top-0 left-0 w-2 h-full cursor-ew-resize z-[2] bg-gradient-to-r from-white/30 to-transparent hover:bg-white/50\"></div>\n 138→\n 139→ <div class=\"flex items-center gap-1.5 px-2 flex-1 overflow-hidden\">\n 140→ <div class=\"text-lg flex-shrink-0\">\n 141→ @switch (item.type) {\n 142→ @case (MediaType.VIDEO) {\n 143→ <i class=\"bi bi-camera-video-fill\"></i>\n 144→ }\n 145→ @case (MediaType.AUDIO) {\n 146→ <i class=\"bi bi-volume-up-fill\"></i>\n 147→ }\n 148→ @case (MediaType.IMAGE) {\n 149→ <i class=\"bi bi-image-fill\"></i>\n 150→ }\n 151→ }\n 152→ </div>\n 153→ <div class=\"flex flex-col overflow-hidden flex-1\">\n 154→ <div class=\"text-[11px] font-medium whitespace-nowrap overflow-hidden text-ellipsis\">{{ item.name }}</div>\n 155→ <div class=\"text-[9px] text-white/60 font-mono\">\n 156→ @if (item.mediaStartTime && item.mediaStartTime > 0) {\n 157→ <span>{{ formatTime(item.mediaStartTime) }} - </span>\n 158→ }\n 159→ {{ formatTime(item.duration) }}\n 160→ </div>\n 161→ </div>\n 162→ </div>\n 163→\n 164→ <div class=\"resize-handle resize-handle-right absolute top-0 right-0 w-2 h-full cursor-ew-resize z-[2] bg-gradient-to-l from-white/30 to-transparent hover:bg-white/50\"></div>\n 165→\n 166→ <button\n 167→ class=\"media-item-delete absolute top-0.5 right-0.5 w-5 h-5 bg-black/60 text-white border-none rounded-full cursor-pointer text-xs leading-none p-0 hidden items-center justify-center hover:bg-red-600\"\n 168→ (click)=\"removeMediaItem(item.id, track.id); $event.stopPropagation()\">\n 169→ <i class=\"bi bi-x\"></i>\n 170→ </button>\n 171→ </div>\n 172→ }\n 173→ </div>\n 174→ </div>\n 175→ </div>\n 176→ }\n 177→ </div>\n 178→ </div>\n 179→\n 180→ <!-- Duration Editor Modal -->\n 181→ @if (showDurationEditor()) {\n 182→ <div class=\"fixed inset-0 bg-black/50 flex items-center justify-center z-[2000]\" (click)=\"closeDurationEditor()\">\n 183→ <div class=\"bg-[#2a2a2a] rounded-lg p-6 min-w-[400px] border border-[#3a3a3a]\" (click)=\"$event.stopPropagation()\">\n 184→ <h3 class=\"text-lg font-semibold mb-4 mt-0\">Total video duration</h3>\n 185→\n 186→ <div class=\"mb-4\">\n 187→ <label class=\"block text-sm text-gray-400 mb-2\">Duration (in seconds):</label>\n 188→ <input\n 189→ type=\"number\"\n 190→ min=\"1\"\n 191→ max=\"3600\"\n 192→ step=\"1\"\n 193→ [value]=\"state().totalDuration / 1000\"\n 194→ (input)=\"onDurationInputChange($event)\"\n 195→ class=\"w-full px-3 py-2 bg-[#1e1e1e] border border-[#3a3a3a] rounded text-white focus:outline-none focus:border-blue-500\"\n 196→ placeholder=\"60\">\n 197→ <div class=\"text-xs text-gray-500 mt-1\">Current value: {{ formatTime(state().totalDuration) }}</div>\n 198→ </div>\n 199→\n 200→ <div class=\"flex gap-2 justify-end\">\n 201→ <button\n 202→ (click)=\"closeDurationEditor()\"\n 203→ class=\"px-4 py-2 bg-[#3a3a3a] text-white border-none rounded cursor-pointer transition-colors hover:bg-[#4a4a4a]\">\n 204→ Cancel\n 205→ </button>\n 206→ <button\n 207→ (click)=\"saveDuration()\"\n 208→ class=\"px-4 py-2 bg-blue-600 text-white border-none rounded cursor-pointer transition-colors hover:bg-blue-700\">\n 209→ Save\n 210→ </button>\n 211→ </div>\n 212→ </div>\n 213→ </div>\n 214→ }\n 215→\n 216→ <!-- Media Library Modal -->\n 217→ @if (showMediaLibrary()) {\n 218→ <app-media-library\n 219→ (closeModal)=\"closeMediaLibrary()\"\n 220→ (selectMedia)=\"onMediaSelected($event)\">\n 221→ </app-media-library>\n 222→ }\n 223→\n 224→ <!-- Notifications -->\n 225→ <app-notifications #notifications></app-notifications>\n 226→</div>\n 227→\n\n<system-reminder>\nWhenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.\n</system-reminder>\n"}]},"parent_tool_use_id":null,"session_id":"d5b1bf94-1397-44f7-9390-3c57ba19d0b0","uuid":"ba422ee4-2b23-4781-a22f-303418ddf6c7","tool_use_result":{"type":"text","file":{"filePath":"/tmp/gh-issue-solver-1764930855025/video-timeline/src/app/components/timeline/timeline.component.html","content":"<div class=\"flex flex-col h-full bg-[#1e1e1e] text-gray-200 select-none\" (mouseup)=\"onPointerUp($event)\" (mousemove)=\"onDocumentPointerMove($event)\" (touchend)=\"onPointerUp($event)\" (touchmove)=\"onDocumentPointerMove($event)\">\n <!-- Toolbar -->\n <div class=\"flex justify-between items-center px-4 py-3 bg-[#252525] border-b border-[#3a3a3a]\">\n <h2 class=\"text-lg font-semibold m-0\">VideoEditor</h2>\n <div class=\"flex gap-4 items-center\">\n <div class=\"font-mono text-sm px-3 py-1 bg-[#2a2a2a] rounded cursor-pointer hover:bg-[#3a3a3a] transition-colors\"\n (click)=\"openDurationEditor()\"\n title=\"Click to change total duration\">\n {{ formatTime(state().playheadPosition) }} / {{ formatTime(state().totalDuration) }}\n </div>\n </div>\n </div>\n\n <!-- Video Preview Area -->\n <div class=\"flex justify-center items-center py-6 bg-[#252525] border-b border-[#3a3a3a]\">\n <div class=\"flex flex-col items-center gap-3\">\n <!-- Video Preview Placeholder -->\n <div class=\"w-[640px] h-[360px] bg-[#1a1a1a] rounded-lg border border-[#3a3a3a] flex items-center justify-center\">\n <div class=\"flex flex-col items-center gap-2 text-gray-400\">\n <i class=\"bi bi-film text-6xl\"></i>\n <span class=\"text-sm\">Video preview</span>\n </div>\n </div>\n\n <!-- Playback Controls -->\n <div class=\"flex gap-2 items-center\">\n <button (click)=\"skipBackward()\" class=\"px-3 py-2 bg-[#3a3a3a] text-white border-none rounded cursor-pointer text-base transition-colors hover:bg-[#4a4a4a] flex items-center gap-1.5\" title=\"Back 5 seconds\">\n <i class=\"bi bi-skip-backward-fill\"></i>\n <span class=\"text-xs\">5s</span>\n </button>\n <button (click)=\"togglePlayback()\" class= | |
| [2025-12-05T10:36:23.833Z] [INFO] \"px-4 py-2 bg-blue-600 text-white border-none rounded cursor-pointer text-xl transition-colors hover:bg-blue-700\" [title]=\"isPlaying() ? 'Pause' : 'Play'\">\n @if (isPlaying()) {\n <i class=\"bi bi-pause-fill\"></i>\n } @else {\n <i class=\"bi bi-play-fill\"></i>\n }\n </button>\n <button (click)=\"skipForward()\" class=\"px-3 py-2 bg-[#3a3a3a] text-white border-none rounded cursor-pointer text-base transition-colors hover:bg-[#4a4a4a] flex items-center gap-1.5\" title=\"Forward 5 seconds\">\n <span class=\"text-xs\">5s</span>\n <i class=\"bi bi-skip-forward-fill\"></i>\n </button>\n </div>\n </div>\n </div>\n\n <div class=\"relative\">\n <!-- Media Toolbar (positioned absolutely above timeline, aligned with left panel) -->\n <app-media-toolbar\n [isVisible]=\"hasSelectedItem()\"\n [hasClipboard]=\"hasClipboardItem()\"\n (trimMedia)=\"trimSelectedMedia()\"\n (copyMedia)=\"copySelectedMedia()\"\n (pasteMedia)=\"pasteMedia()\">\n </app-media-toolbar>\n </div>\n <!-- Timeline content wrapper with unified horizontal scrolling -->\n <div class=\"flex-1 flex flex-col overflow-y-auto overflow-x-auto relative\">\n <!-- Timeline Ruler (sticky to stay visible during vertical scroll) -->\n <div class=\"flex border-b border-[#3a3a3a] flex-shrink-0 sticky top-0 z-10 bg-[#2a2a2a] relative\">\n <!-- Control area to align with track headers -->\n <div class=\"min-w-[150px] bg-[#252525] border-r border-[#3a3a3a] flex justify-center items-center gap-1 p-2\">\n <button (click)=\"addTrack()\" class=\"px-2 py-1 text-white border-none rounded cursor-pointer text-sm opacity-70 transition-opacity hover:opacity-100\" title=\"Add track\">\n <i class=\"bi bi-plus-circle\"></i>\n </button>\n <button (click)=\"zoomOut()\" class=\"px-2 py-1 text-white border-none rounded cursor-pointer text-sm opacity-70 transition-opacity hover:opacity-100\" title=\"Zoom out\">\n <i class=\"bi bi-zoom-out\"></i>\n </button>\n <button (click)=\"zoomIn()\" class=\"px-2 py-1 text-white border-none rounded cursor-pointer text-sm opacity-70 transition-opacity hover:opacity-100\" title=\"Zoom in\">\n <i class=\"bi bi-zoom-in\"></i>\n </button>\n </div>\n <!-- Ruler content -->\n <div class=\"relative h-10 bg-[#2a2a2a] flex-1\">\n <div class=\"relative h-full min-w-full cursor-pointer\"\n [style.width.px]=\"timelineWidth()\"\n (mousedown)=\"onRulerPointerDown($event)\"\n (touchstart)=\"onRulerPointerDown($event)\"\n #timelineRuler>\n @for (marker of getTimeMarkers(); track marker.position) {\n <div class=\"absolute top-0 h-full\" [style.left.px]=\"marker.position\">\n <div class=\"w-px h-[60%] bg-[#4a4a4a]\"></div>\n <div class=\"text-[10px] text-gray-400 mt-0.5 whitespace-nowrap\">{{ marker.label }}</div>\n </div>\n }\n </div>\n <!-- Playhead - positioned in ruler container to stay visible -->\n <div class=\"absolute top-0 pointer-events-none z-[5]\"\n [style.left.px]=\"playheadPosition()\"\n (mousedown)=\"onPlayheadPointerDown($event)\"\n (touchstart)=\"onPlayheadPointerDown($event)\">\n <div class=\"absolute -left-1.5 top-4 w-3 h-3 bg-red-500 rounded-sm cursor-ew-resize pointer-events-auto\"></div>\n <div class=\"absolute left-0 top-4 w-0.5 bg-red-500 pointer-events-none\" [style.height.px]=\"timelineLineHeight()\"></div>\n </div>\n </div>\n </div>\n\n <!-- Tracks -->\n <div class=\"flex-1\" [style.width.px]=\"timelineWidth() + TRACK_HEADER_WIDTH\">\n @for (track of state().tracks; track track.id; let i = $index) {\n <div class=\"flex border-b border-[#3a3a3a] min-h-[60px]\">\n <!-- Track header -->\n <div class=\"flex items-center justify-between min-w-[150px] p-2 bg-[#252525] border-r border-[#3a3a3a]\">\n <span class=\"text-sm font-medium\">Track {{ i + 1 }}</span>\n <div class=\"flex gap-1\">\n <button\n (click)=\"openMediaLibrary(track.id)\"\n class=\"p-1 text-base text-white border-none bg-transparent cursor-pointer transition-opacity opacity-70 hover:opacity-100\"\n title=\"Add media\">\n <i class=\"bi bi-plus-circle\"></i>\n </button>\n <button\n (click)=\"removeTrack(track.id)\"\n class=\"p-1 text-base text-red-500 border-none bg-transparent cursor-pointer transition-opacity opacity-70 hover:opacity-100\"\n title=\"Remove track\">\n <i class=\"bi bi-trash\"></i>\n </button>\n </div>\n </div>\n\n <!-- Track timeline -->\n <div class=\"relative flex-1\">\n <div class=\"track relative bg-[#1a1a1a] min-h-[60px]\"\n (mousemove)=\"onTrackPointerMove($event, track)\"\n (mousedown)=\"onTrackPointerDown($event)\"\n (touchmove)=\"onTrackPointerMove($event, track)\"\n (touchstart)=\"onTrackPointerDown($event)\">\n\n @for (item of track.items; track item.id) {\n <div class=\"media-item group absolute h-12 top-1.5 rounded border-2 border-transparent cursor-move flex items-center overflow-hidden transition-colors hover:border-white/30\"\n [class]=\"getMediaTypeClass(item.type)\"\n [class.selected]=\"isItemSelected(item.id)\"\n [style.left]=\"getItemStyle(item).left\"\n [style.width]=\"getItemStyle(item).width\"\n (mousedown)=\"onMediaItemPointerDown($event, item, track)\"\n (touchstart)=\"onMediaItemPointerDown($event, item, track)\">\n\n <div class=\"resize-handle resize-handle-left absolute top-0 left-0 w-2 h-full cursor-ew-resize z-[2] bg-gradient-to-r from-white/30 to-transparent hover:bg-white/50\"></div>\n\n <div class=\"flex items-center gap-1.5 px-2 flex-1 overflow-hidden\">\n <div class=\"text-lg flex-shrink-0\">\n @switch (item.type) {\n @case (MediaType.VIDEO) {\n <i class=\"bi bi-camera-video-fill\"></i>\n }\n @case (MediaType.AUDIO) {\n <i class=\"bi bi-volume-up-fill\"></i>\n }\n @case (MediaType.IMAGE) {\n <i class=\"bi bi-image-fill\"></i>\n }\n }\n </div>\n <div class=\"flex flex-col overflow-hidden flex-1\">\n <div class=\"text-[11px] font-medium whitespace-nowrap overflow-hidden text-ellipsis\">{{ item.name }}</div>\n <div class=\"text-[9px] text-white/60 font-mono\">\n @if (item.mediaStartTime && item.mediaStartTime > 0) {\n <span>{{ formatTime(item.mediaStartTime) }} - </span>\n }\n {{ formatTime(item.duration) }}\n </div>\n </div>\n </div>\n\n <div class=\"resize-handle resize-handle-right absolute top-0 right-0 w-2 h-full cursor-ew-resize z-[2] bg-gradient-to-l from-white/30 to-transparent hover:bg-white/50\"></div>\n\n <button\n class=\"media-item-delete absolute top-0.5 right-0.5 w-5 h-5 bg-black/60 text-white border-none rounded-full cursor-pointer text-xs leading-none p-0 hidden items-center justify-center hover:bg-red-600\"\n (click)=\"removeMediaItem(item.id, track.id); $event.stopPropagation()\">\n <i class=\"bi bi-x\"></i>\n </button>\n </div>\n }\n </div>\n </div>\n </div>\n }\n </div>\n </div>\n\n <!-- Duration Editor Modal -->\n @if (showDurationEditor()) {\n <div class=\"fixed inset-0 bg-black/50 flex items-center justify-center z-[2000]\" (click)=\"closeDurationEditor()\">\n <div class=\"bg-[#2a2a2a] rounded-lg p-6 min-w-[400px] border border-[#3a3a3a]\" (click)=\"$event.stopPropagation()\">\n <h3 class=\"text-lg font-semibold mb-4 mt-0\">Total video duration</h3>\n\n <div class=\"mb-4\">\n <label class=\"block text-sm text-gray-400 mb-2\">Duration (in seconds):</label>\n <input\n type=\"number\"\n min=\"1\"\n max=\"3600\"\n step=\"1\"\n [value]=\"state().totalDuration / 1000\"\n (input)=\"onDurationInputChange($event)\"\n class=\"w-full px-3 py-2 bg-[#1e1e1e] border border-[#3a3a3a] rounded text-white focus:outline-none focus:border-blue-500\"\n placeholder=\"60\">\n <div class=\"text-xs text-gray-500 mt-1\">Current value: {{ formatTime(state().totalDuration) }}</div>\n </div>\n\n <div class=\"flex gap-2 justify-end\">\n <button\n (click)=\"closeDurationEditor()\"\n class=\"px-4 py-2 bg-[#3a3a3a] text-white border-none rounded cursor-pointer transition-colors hover:bg-[#4a4a4a]\">\n Cancel\n </button>\n <button\n (click)=\"saveDuration()\"\n class=\"px-4 py-2 bg-blue-600 text-white border-none rounded cursor-pointer transition-colors hover:bg-blue-700\">\n Save\n </button>\n </div>\n </div>\n </div>\n }\n\n <!-- Media Library Modal -->\n @if (showMediaLibrary()) {\n <app-media-library\n (closeModal)=\"closeMediaLibrary()\"\n (selectMedia)=\"onMediaSelected($event)\">\n </app-media-library>\n }\n\n <!-- Notifications -->\n <app-notifications #notifications></app-notifications>\n</div>\n","numLines":227,"startLine":1,"totalLines":227}}} | |
| [2025-12-05T10:36:23.888Z] [INFO] { | |
| "type": "user", | |
| "message": { | |
| "role": "user", | |
| "content": [ | |
| { | |
| "tool_use_id": "toolu_013LLXgcEGwJ2tmmhF2qa9xU", | |
| "type": "tool_result", | |
| "content": " 1→import { Component, signal, computed, output } from '@angular/core';\n 2→import { CommonModule } from '@angular/common';\n 3→import { MediaType } from '../../models/timeline.models';\n 4→\n 5→export interface MediaLibraryItem {\n 6→ id: string;\n 7→ name: string;\n 8→ type: MediaType;\n 9→ duration: number; // milliseconds\n 10→ url?: string; // URL to the actual media file\n 11→ thumbnail?: string;\n 12→}\n 13→\n 14→@Component({\n 15→ selector: 'app-media-library',\n 16→ standalone: true,\n 17→ imports: [CommonModule],\n 18→ templateUrl: './media-library.component.html',\n 19→ styleUrl: './media-library.component.css'\n 20→})\n 21→export class Media***********onent {\n 22→ // Events\n 23→ readonly closeModal = output<void>();\n 24→ readonly selectMedia = output<MediaLibraryItem>();\n 25→\n 26→ // State\n 27→ readonly selectedFilter = signal<MediaType | 'all'>('all');\n 28→\n 29→ // Static media library data\n 30→ private readonly allMediaItems: MediaLibraryItem[] = [\n 31→ // Videos\n 32→ {\n 33→ id: 'video-1',\n 34→ name: 'video.mp4',\n 35→ type: MediaType.VIDEO,\n 36→ duration: 12000, // 12 seconds\n 37→ url: 'https://andchir.github.io/video-timeline/video.mp4'\n 38→ },\n 39→ // Audio\n 40→ {\n 41→ id: 'audio-1',\n 42→ name: 'audio.mp3',\n 43→ type: MediaType.AUDIO,\n 44→ duration: 30000, // 30 seconds\n 45→ url: 'https://andchir.github.io/video-timeline/audio.mp3'\n 46→ },\n 47→ // Images\n 48→ {\n 49→ id: 'image-1',\n 50→ name: 'image.jpg',\n 51→ type: MediaType.IMAGE,\n 52→ duration: 5000, // 5 seconds default\n 53→ url: 'https://andchir.github.io/video-timeline/image.jpg'\n 54→ }\n 55→ ];\n 56→\n 57→ // Computed filtered media items\n 58→ readonly filteredMediaItems = computed(() => {\n 59→ const filter = this.selectedFilter();\n 60→ if (filter === 'all') {\n 61→ return this.allMediaItems;\n 62→ }\n 63→ return this.allMediaItems.filter(item => item.type === filter);\n 64→ });\n 65→\n 66→ // Expose MediaType enum to template\n 67→ readonly MediaType = MediaType;\n 68→\n 69→ // Filter methods\n 70→ setFilter(filter: MediaType | 'all'): void {\n 71→ this.selectedFilter.set(filter);\n 72→ }\n 73→\n 74→ // Action methods\n 75→ onSelectMedia(item: MediaLibraryItem): void {\n 76→ this.selectMedia.emit(item);\n 77→ }\n 78→\n 79→ onClose(): void {\n 80→ this.closeModal.emit();\n 81→ }\n 82→\n 83→ // Helper method to format duration\n 84→ formatTime(milliseconds: number): string {\n 85→ const seconds = Math.floor(milliseconds / 1000);\n 86→ const minutes = Math.floor(seconds / 60);\n 87→ const remainingSeconds = seconds % 60;\n 88→ return `${minutes}:${remainingSeconds.toString().padStart(2, '0')}`;\n 89→ }\n 90→\n 91→ // Helper method to get icon class for media type\n 92→ getMediaIcon(type: MediaType): string {\n 93→ switch (type) {\n 94→ case MediaType.VIDEO:\n 95→ return 'bi-camera-video-fill';\n 96→ case MediaType.AUDIO:\n 97→ return 'bi-volume-up-fill';\n 98→ case MediaType.IMAGE:\n 99→ return 'bi-image-fill';\n 100→ default:\n 101→ return 'bi-file-earmark';\n 102→ }\n 103→ }\n 104→}\n 105→\n\n<system-reminder>\nWhenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.\n</system-reminder>\n" | |
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| "content": "import { Component, signal, computed, output } from '@angular/core';\nimport { CommonModule } from '@angular/common';\nimport { MediaType } from '../../models/timeline.models';\n\nexport interface MediaLibraryItem {\n id: string;\n name: string;\n type: MediaType;\n duration: number; // milliseconds\n url?: string; // URL to the actual media file\n thumbnail?: string;\n}\n\n@Component({\n selector: 'app-media-library',\n standalone: true,\n imports: [CommonModule],\n templateUrl: './media-library.component.html',\n styleUrl: './media-library.component.css'\n})\nexport class Media***********onent {\n // Events\n readonly closeModal = output<void>();\n readonly selectMedia = output<MediaLibraryItem>();\n\n // State\n readonly selectedFilter = signal<MediaType | 'all'>('all');\n\n // Static media library data\n private readonly allMediaItems: MediaLibraryItem[] = [\n // Videos\n {\n id: 'video-1',\n name: 'video.mp4',\n type: MediaType.VIDEO,\n duration: 12000, // 12 seconds\n url: 'https://andchir.github.io/video-timeline/video.mp4'\n },\n // Audio\n {\n id: 'audio-1',\n name: 'audio.mp3',\n type: MediaType.AUDIO,\n duration: 30000, // 30 seconds\n url: 'https://andchir.github.io/video-timeline/audio.mp3'\n },\n // Images\n {\n id: 'image-1',\n name: 'image.jpg',\n type: MediaType.IMAGE,\n duration: 5000, // 5 seconds default\n url: 'https://andchir.github.io/video-timeline/image.jpg'\n }\n ];\n\n // Computed filtered media items\n readonly filteredMediaItems = computed(() => {\n const filter = this.selectedFilter();\n if (filter === 'all') {\n return this.allMediaItems;\n }\n return this.allMediaItems.filter(item => item.type === filter);\n });\n\n // Expose MediaType enum to template\n readonly MediaType = MediaType;\n\n // Filter methods\n setFilter(filter: MediaType | 'all'): void {\n this.selectedFilter.set(filter);\n }\n\n // Action methods\n onSelectMedia(item: MediaLibraryItem): void {\n this.selectMedia.emit(item);\n }\n\n onClose(): void {\n this.closeModal.emit();\n }\n\n // Helper method to format duration\n formatTime(milliseconds: number): string {\n const seconds = Math.floor(milliseconds / 1000);\n const minutes = Math.floor(seconds / 60);\n const remainingSeconds = seconds % 60;\n return `${minutes}:${remainingSeconds.toString().padStart(2, '0')}`;\n }\n\n // Helper method to get icon class for media type\n getMediaIcon(type: MediaType): string {\n switch (type) {\n case MediaType.VIDEO:\n return 'bi-camera-video-fill';\n case MediaType.AUDIO:\n return 'bi-volume-up-fill';\n case MediaType.IMAGE:\n return 'bi-image-fill';\n default:\n return 'bi-file-earmark';\n }\n }\n}\n", | |
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| "text": "Let me check for existing merged PRs to understand the coding style, and also explore the package.json and any contributing guidelines:" | |
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| "command": "gh pr list --repo andchir/video-timeline --state merged --limit 5", | |
| "description": "List recent merged PRs for style reference" | |
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| "model": "claude-opus-4-5-20251101", | |
| "id": "msg_01FGTv6S6UNMN1KSfz2pmZN1", | |
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| "name": "Read", | |
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| "file_path": "/tmp/gh-issue-solver-1764930855025/video-timeline/package.json" | |
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| [2025-12-05T10:36:30.835Z] [INFO] { | |
| "type": "assistant", | |
| "message": { | |
| "model": "claude-opus-4-5-20251101", | |
| "id": "msg_01FGTv6S6UNMN1KSfz2pmZN1", | |
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| "id": "toolu_01BDK3SXAqj7KDp9HZ4cLTii", | |
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| "command": "ls -la /tmp/gh-issue-solver-1764930855025/video-timeline/src/app/", | |
| "description": "List app directory structure" | |
| } | |
| } | |
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| { | |
| "tool_use_id": "toolu_01CKqdmf6iL3WqotP434QNqc", | |
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| "content": "111\tИспользовать реальные медиа\tkonard:issue-110-e2e7ae40d55f\tMERGED\t2025-12-05T09:58:24Z\n109\tДобавить кнопки копирования и вставки на панель инструментов медиа\tkonard:issue-108-131ef407f92c\tMERGED\t2025-12-02T16:41:03Z\n107\tПозиционировать Media Toolbar абсолютно, чтобы не занимать место\tkonard:issue-106-53a3490ca1eb\tMERGED\t2025-12-02T12:10:36Z\n105\tДобавить панель инструментов для медиа на таймлайн, обрезка медиа\tkonard:issue-104-a2c1c41fae50\tMERGED\t2025-12-02T11:26:31Z\n103\tИсправить перетаскивание на мобильных\tkonard:issue-100-83b3c59babc1\tMERGED\t2025-11-14T22:37:20Z", | |
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| "stdout": "111\tИспользовать реальные медиа\tkonard:issue-110-e2e7ae40d55f\tMERGED\t2025-12-05T09:58:24Z\n109\tДобавить кнопки копирования и вставки на панель инструментов медиа\tkonard:issue-108-131ef407f92c\tMERGED\t2025-12-02T16:41:03Z\n107\tПозиционировать Media Toolbar абсолютно, чтобы не занимать место\tkonard:issue-106-53a3490ca1eb\tMERGED\t2025-12-02T12:10:36Z\n105\tДобавить панель инструментов для медиа на таймлайн, обрезка медиа\tkonard:issue-104-a2c1c41fae50\tMERGED\t2025-12-02T11:26:31Z\n103\tИсправить перетаскивание на мобильных\tkonard:issue-100-83b3c59babc1\tMERGED\t2025-11-14T22:37:20Z", | |
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| [2025-12-05T10:36:34.343Z] [INFO] { | |
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| { | |
| "tool_use_id": "toolu_01LLgWh89k7TmJxZHbYYtTMp", | |
| "type": "tool_result", | |
| "content": " 1→{\n 2→ \"name\": \"video-timeline\",\n 3→ \"version\": \"0.0.0\",\n 4→ \"scripts\": {\n 5→ \"ng\": \"ng\",\n 6→ \"start\": \"ng serve\",\n 7→ \"build\": \"ng build\",\n 8→ \"watch\": \"ng build --watch --configuration development\",\n 9→ \"test\": \"ng test\"\n 10→ },\n 11→ \"prettier\": {\n 12→ \"printWidth\": 100,\n 13→ \"singleQuote\": true,\n 14→ \"overrides\": [\n 15→ {\n 16→ \"files\": \"*.html\",\n 17→ \"options\": {\n 18→ \"parser\": \"angular\"\n 19→ }\n 20→ }\n 21→ ]\n 22→ },\n 23→ \"private\": true,\n 24→ \"dependencies\": {\n 25→ \"@angular/common\": \"^20.3.0\",\n 26→ \"@angular/compiler\": \"^20.3.0\",\n 27→ \"@angular/core\": \"^20.3.0\",\n 28→ \"@angular/forms\": \"^20.3.0\",\n 29→ \"@angular/platform-browser\": \"^20.3.0\",\n 30→ \"@angular/router\": \"^20.3.0\",\n 31→ \"bootstrap-icons\": \"^1.13.1\",\n 32→ \"postcss\": \"^8.5.6\",\n 33→ \"rxjs\": \"~7.8.0\",\n 34→ \"tailwindcss\": \"^4.1.16\",\n 35→ \"tslib\": \"^2.3.0\"\n 36→ },\n 37→ \"devDependencies\": {\n 38→ \"@angular/build\": \"^20.3.8\",\n 39→ \"@angular/cli\": \"^20.3.8\",\n 40→ \"@angular/compiler-cli\": \"^20.3.0\",\n 41→ \"@tailwindcss/postcss\": \"^4.1.16\",\n 42→ \"@types/jasmine\": \"~5.1.0\",\n 43→ \"jasmine-core\": \"~5.9.0\",\n 44→ \"karma\": \"~6.4.0\",\n 45→ \"karma-chrome-launcher\": \"~3.2.0\",\n 46→ \"karma-coverage\": \"~2.2.0\",\n 47→ \"karma-jasmine\": \"~5.1.0\",\n 48→ \"karma-jasmine-html-reporter\": \"~2.1.0\",\n 49→ \"puppeteer\": \"^24.27.0\",\n 50→ \"typescript\": \"~5.9.2\"\n 51→ }\n 52→}\n 53→\n\n<system-reminder>\nWhenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.\n</system-reminder>\n" | |
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| "content": "{\n \"name\": \"video-timeline\",\n \"version\": \"0.0.0\",\n \"scripts\": {\n \"ng\": \"ng\",\n \"start\": \"ng serve\",\n \"build\": \"ng build\",\n \"watch\": \"ng build --watch --configuration development\",\n \"test\": \"ng test\"\n },\n \"prettier\": {\n \"printWidth\": 100,\n \"singleQuote\": true,\n \"overrides\": [\n {\n \"files\": \"*.html\",\n \"options\": {\n \"parser\": \"angular\"\n }\n }\n ]\n },\n \"private\": true,\n \"dependencies\": {\n \"@angular/common\": \"^20.3.0\",\n \"@angular/compiler\": \"^20.3.0\",\n \"@angular/core\": \"^20.3.0\",\n \"@angular/forms\": \"^20.3.0\",\n \"@angular/platform-browser\": \"^20.3.0\",\n \"@angular/router\": \"^20.3.0\",\n \"bootstrap-icons\": \"^1.13.1\",\n \"postcss\": \"^8.5.6\",\n \"rxjs\": \"~7.8.0\",\n \"tailwindcss\": \"^4.1.16\",\n \"tslib\": \"^2.3.0\"\n },\n \"devDependencies\": {\n \"@angular/build\": \"^20.3.8\",\n \"@angular/cli\": \"^20.3.8\",\n \"@angular/compiler-cli\": \"^20.3.0\",\n \"@tailwindcss/postcss\": \"^4.1.16\",\n \"@types/jasmine\": \"~5.1.0\",\n \"jasmine-core\": \"~5.9.0\",\n \"karma\": \"~6.4.0\",\n \"karma-chrome-launcher\": \"~3.2.0\",\n \"karma-coverage\": \"~2.2.0\",\n \"karma-jasmine\": \"~5.1.0\",\n \"karma-jasmine-html-reporter\": \"~2.1.0\",\n \"puppeteer\": \"^24.27.0\",\n \"typescript\": \"~5.9.2\"\n }\n}\n", | |
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| [2025-12-05T10:36:34.867Z] [INFO] { | |
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| { | |
| "tool_use_id": "toolu_01BDK3SXAqj7KDp9HZ4cLTii", | |
| "type": "tool_result", | |
| "content": "total 44\ndrwxrwxr-x 5 hive hive 4096 Dec 5 10:34 .\ndrwxrwxr-x 3 hive hive 4096 Dec 5 10:34 ..\n-rw-rw-r-- 1 hive hive 383 Dec 5 10:34 app.config.ts\n-rw-rw-r-- 1 hive hive 45 Dec 5 10:34 app.css\n-rw-rw-r-- 1 hive hive 30 Dec 5 10:34 app.html\n-rw-rw-r-- 1 hive hive 77 Dec 5 10:34 app.routes.ts\n-rw-rw-r-- 1 hive hive 776 Dec 5 10:34 app.spec.ts\n-rw-rw-r-- 1 hive hive 331 Dec 5 10:34 app.ts\ndrwxrwxr-x 6 hive hive 4096 Dec 5 10:34 components\ndrwxrwxr-x 2 hive hive 4096 Dec 5 10:34 models\ndrwxrwxr-x 2 hive hive 4096 Dec 5 10:34 services", | |
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| "stdout": "total 44\ndrwxrwxr-x 5 hive hive 4096 Dec 5 10:34 .\ndrwxrwxr-x 3 hive hive 4096 Dec 5 10:34 ..\n-rw-rw-r-- 1 hive hive 383 Dec 5 10:34 app.config.ts\n-rw-rw-r-- 1 hive hive 45 Dec 5 10:34 app.css\n-rw-rw-r-- 1 hive hive 30 Dec 5 10:34 app.html\n-rw-rw-r-- 1 hive hive 77 Dec 5 10:34 app.routes.ts\n-rw-rw-r-- 1 hive hive 776 Dec 5 10:34 app.spec.ts\n-rw-rw-r-- 1 hive hive 331 Dec 5 10:34 app.ts\ndrwxrwxr-x 6 hive hive 4096 Dec 5 10:34 components\ndrwxrwxr-x 2 hive hive 4096 Dec 5 10:34 models\ndrwxrwxr-x 2 hive hive 4096 Dec 5 10:34 services", | |
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| [2025-12-05T10:36:38.835Z] [INFO] { | |
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| { | |
| "type": "text", | |
| "text": "Let me look at a recent merged PR to understand the style better:" | |
| } | |
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| "content": "diff --git a/video-timeline/src/app/components/media-library/media-library.component.ts b/video-timeline/src/app/components/media-library/media-library.component.ts\nindex 36ad4ed..42183cc 100644\n--- a/video-timeline/src/app/components/media-library/media-library.component.ts\n+++ b/video-timeline/src/app/components/media-library/media-library.component.ts\n@@ -7,6 +7,7 @@ export interface MediaLibraryItem {\n name: string;\n type: MediaType;\n duration: number; // milliseconds\n+ url?: string; // URL to the actual media file\n thumbnail?: string;\n }\n \n@@ -30,59 +31,26 @@ export class Media***********onent {\n // Videos\n {\n id: 'video-1',\n- name: 'Sample Video 1',\n+ name: 'video.mp4',\n type: MediaType.VIDEO,\n- duration: 10000 // 10 seconds\n- },\n- {\n- id: 'video-2',\n- name: 'Sample Video 2',\n- type: MediaType.VIDEO,\n- duration: 15000 // 15 seconds\n- },\n- {\n- id: 'video-3',\n- name: 'Sample Video 3',\n- type: MediaType.VIDEO,\n- duration: 8000 // 8 seconds\n+ duration: 12000, // 12 seconds\n+ url: 'https://andchir.github.io/video-timeline/video.mp4'\n },\n // Audio\n {\n id: 'audio-1',\n- name: 'Sample Audio 1',\n- type: MediaType.AUDIO,\n- duration: 20000 // 20 seconds\n- },\n- {\n- id: 'audio-2',\n- name: 'Sample Audio 2',\n+ name: 'audio.mp3',\n type: MediaType.AUDIO,\n- duration: 12000 // 12 seconds\n- },\n- {\n- id: 'audio-3',\n- name: 'Sample Audio 3',\n- type: MediaType.AUDIO,\n- duration: 18000 // 18 seconds\n+ duration: 88000, // 1 minute 28 seconds\n+ url: 'https://andchir.github.io/video-timeline/audio.mp3'\n },\n // Images\n {\n id: 'image-1',\n- name: 'Sample Image 1',\n- type: MediaType.IMAGE,\n- duration: 5000 // 5 seconds default\n- },\n- {\n- id: 'image-2',\n- name: 'Sample Image 2',\n- type: MediaType.IMAGE,\n- duration: 5000 // 5 seconds default\n- },\n- {\n- id: 'image-3',\n- name: 'Sample Image 3',\n+ name: 'image.jpg',\n type: MediaType.IMAGE,\n- duration: 5000 // 5 seconds default\n+ duration: 5000, // 5 seconds default\n+ url: 'https://andchir.github.io/video-timeline/image.jpg'\n }\n ];", | |
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| "stdout": "diff --git a/video-timeline/src/app/components/media-library/media-library.component.ts b/video-timeline/src/app/components/media-library/media-library.component.ts\nindex 36ad4ed..42183cc 100644\n--- a/video-timeline/src/app/components/media-library/media-library.component.ts\n+++ b/video-timeline/src/app/components/media-library/media-library.component.ts\n@@ -7,6 +7,7 @@ export interface MediaLibraryItem {\n name: string;\n type: MediaType;\n duration: number; // milliseconds\n+ url?: string; // URL to the actual media file\n thumbnail?: string;\n }\n \n@@ -30,59 +31,26 @@ export class Media***********onent {\n // Videos\n {\n id: 'video-1',\n- name: 'Sample Video 1',\n+ name: 'video.mp4',\n type: MediaType.VIDEO,\n- duration: 10000 // 10 seconds\n- },\n- {\n- id: 'video-2',\n- name: 'Sample Video 2',\n- type: MediaType.VIDEO,\n- duration: 15000 // 15 seconds\n- },\n- {\n- id: 'video-3',\n- name: 'Sample Video 3',\n- type: MediaType.VIDEO,\n- duration: 8000 // 8 seconds\n+ duration: 12000, // 12 seconds\n+ url: 'https://andchir.github.io/video-timeline/video.mp4'\n },\n // Audio\n {\n id: 'audio-1',\n- name: 'Sample Audio 1',\n- type: MediaType.AUDIO,\n- duration: 20000 // 20 seconds\n- },\n- {\n- id: 'audio-2',\n- name: 'Sample Audio 2',\n+ name: 'audio.mp3',\n type: MediaType.AUDIO,\n- duration: 12000 // 12 seconds\n- },\n- {\n- id: 'audio-3',\n- name: 'Sample Audio 3',\n- type: MediaType.AUDIO,\n- duration: 18000 // 18 seconds\n+ duration: 88000, // 1 minute 28 seconds\n+ url: 'https://andchir.github.io/video-timeline/audio.mp3'\n },\n // Images\n {\n id: 'image-1',\n- name: 'Sample Image 1',\n- type: MediaType.IMAGE,\n- duration: 5000 // 5 seconds default\n- },\n- {\n- id: 'image-2',\n- name: 'Sample Image 2',\n- type: MediaType.IMAGE,\n- duration: 5000 // 5 seconds default\n- },\n- {\n- id: 'image-3',\n- name: 'Sample Image 3',\n+ name: 'image.jpg',\n type: MediaType.IMAGE,\n- duration: 5000 // 5 seconds default\n+ duration: 5000, // 5 seconds default\n+ url: 'https://andchir.github.io/video-timeline/image.jpg'\n }\n ];", | |
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| "text": "Now I have a better understanding. Let me check for contributing guidelines and read the existing drag-drop service:" | |
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| [2025-12-05T10:36:48.752Z] [INFO] {"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01NhmzmkyVwf1eUkVamZr6Bf","type":"tool_result","content":" 1→import { Injectable } from '@angular/core';\n 2→import { MediaItem } from '../models/timeline.models';\n 3→\n 4→/**\n 5→ * Service responsible for handling drag-and-drop logic and timeline positioning\n 6→ * Extracted from timeline.component.ts for better code organization\n 7→ */\n 8→@Injectable({\n 9→ providedIn: 'root'\n 10→})\n 11→export class Timel*************rvice {\n 12→ private readonly MIN_ITEM_DURATION = 100; // Minimum item duration in milliseconds\n 13→ readonly SNAP_DISTANCE_MS = 200; // Snapping distance in milliseconds for drag operations\n 14→\n 15→ constructor() { }\n 16→\n 17→ /**\n 18→ * Check if two items overlap\n 19→ */\n 20→ itemsOverlap(item1: MediaItem, item2: MediaItem): boolean {\n 21→ const item1End = item1.startTime + item1.duration;\n 22→ const item2End = item2.startTime + item2.duration;\n 23→ return !(item1End <= item2.startTime || item2End <= item1.startTime);\n 24→ }\n 25→\n 26→ /**\n 27→ * Finds the closest item to the given time position in the track\n 28→ * Returns null if no items exist in the track\n 29→ */\n 30→ findClosestItem(trackItems: MediaItem[], time: number): MediaItem | null {\n 31→ if (trackItems.length === 0) return null;\n 32→\n 33→ let closestItem = trackItems[0];\n 34→ let minDistance = Math.abs(closestItem.startTime - time);\n 35→\n 36→ for (const item of trackItems) {\n 37→ const itemEnd = item.startTime + item.duration;\n 38→\n 39→ // Calculate distance to the start of the item\n 40→ const distanceToStart = Math.abs(item.startTime - time);\n 41→\n 42→ // Calculate distance to the end of the item\n 43→ const distanceToEnd = Math.abs(itemEnd - time);\n 44→\n 45→ // Use | |
| [2025-12-05T10:36:48.798Z] [INFO] the minimum distance (to either start or end of item)\n 46→ const distance = Math.min(distanceToStart, distanceToEnd);\n 47→\n 48→ if (distance < minDistance) {\n 49→ minDistance = distance;\n 50→ closestItem = item;\n 51→ }\n 52→ }\n 53→\n 54→ return closestItem;\n 55→ }\n 56→\n 57→ /**\n 58→ * Find all gaps in the track\n 59→ * Used for finding the closest gap when requested position overlaps an item\n 60→ */\n 61→ findAllGaps(trackItems: MediaItem[]): { gapStart: number; gapEnd: number; leftItem: MediaItem | null; rightItem: MediaItem | null }[] {\n 62→ const gaps: { gapStart: number; gapEnd: number; leftItem: MediaItem | null; rightItem: MediaItem | null }[] = [];\n 63→ const sortedItems = [...trackItems].sort((a, b) => a.startTime - b.startTime);\n 64→\n 65→ if (sortedItems.length === 0) {\n 66→ return [{ gapStart: 0, gapEnd: Infinity, leftItem: null, rightItem: null }];\n 67→ }\n 68→\n 69→ // Gap before first item\n 70→ if (sortedItems[0].startTime > 0) {\n 71→ gaps.push({\n 72→ gapStart: 0,\n 73→ gapEnd: sortedItems[0].startTime,\n 74→ leftItem: null,\n 75→ rightItem: sortedItems[0]\n 76→ });\n 77→ }\n 78→\n 79→ // Gaps between items\n 80→ for (let i = 0; i < sortedItems.length - 1; i++) {\n 81→ const leftItem = sortedItems[i];\n 82→ const rightItem = sortedItems[i + 1];\n 83→ const gapStart = leftItem.startTime + leftItem.duration;\n 84→ const gapEnd = rightItem.startTime;\n 85→\n 86→ if (gapEnd > gapStart) {\n 87→ gaps.push({ gapStart, gapEnd, leftItem, rightItem });\n 88→ }\n 89→ }\n 90→\n 91→ // Gap after last item\n 92→ const lastItem = sortedItems[sortedItems.length - 1];\n 93→ gaps.push({\n 94→ gapStart: lastItem.startTime + lastItem.duration,\n 95→ gapEnd: Infinity,\n 96→ leftItem: lastItem,\n 97→ rightItem: null\n 98→ });\n 99→\n 100→ return gaps;\n 101→ }\n 102→\n 103→ /**\n 104→ * Find the closest gap to the requested position\n 105→ * Used when the requested position overlaps an existing item\n 106→ */\n 107→ findClosestGap(\n 108→ requestedStartTime: number,\n 109→ gaps: { gapStart: number; gapEnd: number; leftItem: MediaItem | null; rightItem: MediaItem | null }[]\n 110→ ): { gapStart: number; gapEnd: number; leftItem: MediaItem | null; rightItem: MediaItem | null } {\n 111→ let closestGap = gaps[0];\n 112→ let minDistance = Infinity;\n 113→\n 114→ for (const gap of gaps) {\n 115→ let distance: number;\n 116→\n 117→ if (requestedStartTime < gap.gapStart) {\n 118→ // Requested position is before this gap\n 119→ distance = gap.gapStart - requestedStartTime;\n 120→ } else if (gap.gapEnd === Infinity || requestedStartTime < gap.gapEnd) {\n 121→ // Requested position is within this gap\n 122→ distance = 0;\n 123→ } else {\n 124→ // Requested position is after this gap\n 125→ distance = requestedStartTime - gap.gapEnd;\n 126→ }\n 127→\n 128→ if (distance < minDistance) {\n 129→ minDistance = distance;\n 130→ closestGap = gap;\n 131→ }\n 132→ }\n 133→\n 134→ return closestGap;\n 135→ }\n 136→\n 137→ /**\n 138→ * Finds the gap where the requested position falls and returns gap boundaries\n 139→ * Returns null if the position doesn't fall in a valid gap\n 140→ */\n 141→ findGapForPosition(\n 142→ requestedStartTime: number,\n 143→ itemDuration: number,\n 144→ trackItems: MediaItem[]\n 145→ ): { gapStart: number; gapEnd: number; leftItem: MediaItem | null; rightItem: MediaItem | null } | null {\n 146→ const sortedItems = [...trackItems].sort((a, b) => a.startTime - b.startTime);\n 147→\n 148→ // Empty track - infinite gap\n 149→ if (sortedItems.length === 0) {\n 150→ return { gapStart: 0, gapEnd: Infinity, leftItem: null, rightItem: null };\n 151→ }\n 152→\n 153→ // Check gap before first item\n 154→ if (requestedStartTime < sortedItems[0].startTime) {\n 155→ return {\n 156→ gapStart: 0,\n 157→ gapEnd: sortedItems[0].startTime,\n 158→ leftItem: null,\n 159→ rightItem: sortedItems[0]\n 160→ };\n 161→ }\n 162→\n 163→ // Check gaps between items\n 164→ for (let i = 0; i < sortedItems.length - 1; i++) {\n 165→ const leftItem = sortedItems[i];\n 166→ const rightItem = sortedItems[i + 1];\n 167→ const gapStart = leftItem.startTime + leftItem.duration;\n 168→ const gapEnd = rightItem.startTime;\n 169→\n 170→ // Check if requested position falls within this gap\n 171→ if (requestedStartTime >= gapStart && requestedStartTime < gapEnd) {\n 172→ return { gapStart, gapEnd, leftItem, rightItem };\n 173→ }\n 174→ }\n 175→\n 176→ // Check gap after last item\n 177→ const lastItem = sortedItems[sortedItems.length - 1];\n 178→ if (requestedStartTime >= lastItem.startTime + lastItem.duration) {\n 179→ return {\n 180→ gapStart: lastItem.startTime + lastItem.duration,\n 181→ gapEnd: Infinity,\n 182→ leftItem: lastItem,\n 183→ rightItem: null\n 184→ };\n 185→ }\n 186→\n 187→ return null;\n 188→ }\n 189→\n 190→ /**\n 191→ * Find snap targets for an item being dragged\n 192→ * Returns array of snap points (start/end positions of items on other tracks and playhead position)\n 193→ * Fixes issue #81: Enable snapping to placeholders on different tracks and playhead\n 194→ */\n 195→ findSnapTargets(\n 196→ draggedItemId: string,\n 197→ allTracks: { items: MediaItem[] }[],\n 198→ playheadPosition: number\n 199→ ): number[] {\n 200→ const snapTargets: number[] = [];\n 201→\n 202→ // Add playhead position as a snap target\n 203→ snapTargets.push(playheadPosition);\n 204→\n 205→ // Add start and end positions of all items on all tracks (except the dragged item)\n 206→ for (const track of allTracks) {\n 207→ for (const item of track.items) {\n 208→ if (item.id !== draggedItemId) {\n 209→ snapTargets.push(item.startTime);\n 210→ snapTargets.push(item.startTime + item.duration);\n 211→ }\n 212→ }\n 213→ }\n 214→\n 215→ return snapTargets;\n 216→ }\n 217→\n 218→ /**\n 219→ * Apply snapping to the requested start time if close to any snap target\n 220→ * Returns the snapped start time or the original if no snapping occurs\n 221→ * Fixes issue #81: Snap to nearby positions for more accurate positioning\n 222→ */\n 223→ applySnapping(\n 224→ requestedStartTime: number,\n 225→ itemDuration: number,\n 226→ snapTargets: number[],\n 227→ snapDistance: number = this.SNAP_DISTANCE_MS\n 228→ ): number {\n 229→ let snappedTime = requestedStartTime;\n 230→ let minDistance = snapDistance;\n 231→\n 232→ for (const target of snapTargets) {\n 233→ // Check snapping to start of item\n 234→ const distanceToStart = Math.abs(requestedStartTime - target);\n 235→ if (distanceToStart < minDistance) {\n 236→ minDistance = distanceToStart;\n 237→ snappedTime = target;\n 238→ }\n 239→\n 240→ // Check snapping to end of item (align item's end with target)\n 241→ const requestedEndTime = requestedStartTime + itemDuration;\n 242→ const distanceToEnd = Math.abs(requestedEndTime - target);\n 243→ if (distanceToEnd < minDistance) {\n 244→ minDistance = distanceToEnd;\n 245→ snappedTime = target - itemDuration;\n 246→ }\n 247→ }\n 248→\n 249→ return snappedTime;\n 250→ }\n 251→\n 252→ /**\n 253→ * Calculate valid drag position with automatic duration adjustment to fit gaps\n 254→ * Fixes issue #33: When dragging into a gap smaller than item duration,\n 255→ * adjust duration to fit instead of overlapping adjacent items\n 256→ * Fixes issue #36: When dragging overlaps an existing item, find the closest gap\n 257→ * instead of jumping to the end of the track\n 258→ * Fixes issue #38: Prevent overlaps by ensuring items always start at or after gap start\n 259→ * Fixes issue #48: Enforce strict totalDuration limit when dragging items\n 260→ * Fixes issue #81: Apply snapping to nearby placeholders and playhead\n 261→ */\n 262→ getValidDragPosition(\n 263→ item: MediaItem,\n 264→ requestedStartTime: number,\n 265→ trackItems: MediaItem[],\n 266→ totalDuration: number,\n 267→ snapTargets?: number[]\n 268→ ): { startTime: number; duration: number } {\n 269→ // Apply snapping if snap targets are provided\n 270→ let adjustedStartTime = requestedStartTime;\n 271→ if (snapTargets && snapTargets.length > 0) {\n 272→ adjustedStartTime = this.applySnapping(requestedStartTime, item.duration, snapTargets);\n 273→ }\n 274→ const otherItems = trackItems.filter(i => i.id !== item.id);\n 275→\n 276→ // Empty track - place at requested position with original duration\n 277→ // but ensure we don't exceed totalDuration\n 278→ if (otherItems.length === 0) {\n 279→ const startTime = Math.max(0, adjustedStartTime);\n 280→ const maxDuration = totalDuration - startTime;\n 281→ return {\n 282→ startTime,\n 283→ duration: Math.min(item.duration, maxDuration)\n 284→ };\n 285→ }\n 286→\n 287→ // Find which gap the adjusted position falls into\n 288→ let gap = this.findGapForPosition(adjustedStartTime, item.duration, otherItems);\n 289→\n 290→ if (!gap) {\n 291→ // Position overlaps an existing item\n 292→ // Fix for issue #36: Find the closest gap instead of jumping to end\n 293→ const allGaps = this.findAllGaps(otherItems);\n 294→ gap = this.findClosestGap(adjustedStartTime, allGaps);\n 295→ }\n 296→\n 297→ const gapSize = gap.gapEnd === Infinity ? Infinity : gap.gapEnd - gap.gapStart;\n 298→\n 299→ // If gap is infinite (after last item), use original duration\n 300→ // Fix for issue #38: Ensure item starts at or after gap start to prevent overlap\n 301→ // Fix for issue #48: Respect totalDuration limit even in infinite gap\n 302→ if (gapSize === Infinity) {\n 303→ const startTime = Math.max(gap.gapStart, adjustedStartTime);\n 304→ const maxDuration = totalDuration - startTime;\n 305→ return {\n 306→ startTime,\n 307→ duration: Math.min(item.duration, maxDuration)\n 308→ };\n 309→ }\n 310→\n 311→ // If item fits completely in the gap, use original duration\n 312→ // Fix for issue #48: Also check totalDuration limit\n 313→ if (item.duration <= gapSize) {\n 314→ // Make sure the item doesn't go past the gap end\n 315→ const maxStartTime = gap.gapEnd - item.duration;\n 316→ const finalStartTime = Math.max(gap.gapStart, Math.min(adjustedStartTime, maxStartTime));\n 317→ // Ensure we don't exceed totalDuration\n 318→ const maxDuration = totalDuration - finalStartTime;\n 319→ return {\n 320→ startTime: finalStartTime,\n 321→ duration: Math.min(item.duration, maxDuration)\n 322→ };\n 323→ }\n 324→\n 325→ // Item doesn't fit - adjust duration to fit the gap\n 326→ // Respect minimum duration constraint\n 327→ // Fix for issue #48: Also respect totalDuration limit\n 328→ const maxDuration = totalDuration - gap.gapStart;\n 329→ const adjustedDuration = Math.max(this.MIN_ITEM_DURATION, Math.min(gapSize, maxDuration));\n 330→\n 331→ return {\n 332→ startTime: gap.gapStart,\n 333→ duration: adjustedDuration\n 334→ };\n 335→ }\n 336→\n 337→ /**\n 338→ * Get resize bounds for an item\n 339→ */\n 340→ getResizeBounds(\n 341→ item: MediaItem,\n 342→ trackItems: MediaItem[],\n 343→ edge: 'left' | 'right',\n 344→ totalDuration: number\n 345→ ): { minTime: number; maxTime: number } {\n 346→ const otherItems = trackItems.filter(i => i.id !== item.id)\n 347→ .sort((a, b) => a.startTime - b.startTime);\n 348→\n 349→ if (edge === 'left') {\n 350→ // Find item to the left\n 351→ const leftItem = otherItems\n 352→ .filter(i => i.startTime + i.duration <= item.startTime)\n 353→ .pop();\n 354→\n 355→ const minTime = leftItem ? leftItem.startTime + leftItem.duration : 0;\n 356→\n 357→ // Calculate maxTime considering minimum duration\n 358→ const maxTi***********ation = item.startTime + item.duration - 100; // Keep minimum duration\n 359→\n 360→ // Fix for issue #89: Consider mediaStartTime when calculating left edge bounds\n 361→ // We can only extend left as far as there is available media before the current trim point\n 362→ const curre***********tTime = item.mediaStartTime || 0;\n 363→ const maxTi**************Start = item.startTime - currentMediaStartTime;\n 364→\n 365→ const maxTime = Math.max(maxTimeForMinDuration, maxTimeBasedOnMediaStart);\n 366→\n 367→ return { minTime, maxTime };\n 368→ } else {\n 369→ // Find item to the right\n 370→ const rightItem = otherItems\n 371→ .find(i => i.startTime >= item.startTime + item.duration);\n 372→\n 373→ const minTime = item.startTime + 100; // Minimum duration\n 374→\n 375→ // Fix for issue #89: Consider mediaStartTime when calculating right edge bounds\n 376→ // The remaining available media duration is maxDuration minus the current mediaStartTime\n 377→ const curre***********tTime = item.mediaStartTime || 0;\n 378→ const remai************ation = item.maxDuration\n 379→ ? item.maxDuration - currentMediaStartTime\n 380→ : Infinity;\n 381→\n 382→ const maxTi******************Media = item.maxDuration\n 383→ ? item.startTime + remainingMediaDuration\n 384→ : Infinity;\n 385→\n 386→ // Fix for issue #48: Respect totalDuration limit when resizing right edge\n 387→ // Combine all constraints: adjacent item, totalDuration, and remaining media duration\n 388→ const maxTime = Math.min(\n 389→ rightItem ? rightItem.startTime : totalDuration,\n 390→ totalDuration,\n 391→ maxTimeBasedOnRemainingMedia\n 392→ );\n 393→\n 394→ return { minTime, maxTime };\n 395→ }\n 396→ }\n 397→\n 398→ /**\n 399→ * Calculate the start time for a new item based on playhead position and track items\n 400→ * Handles snapping to existing items and avoiding overlaps\n 401→ */\n 402→ calculateNewItemStartTime(\n 403→ playheadTime: number,\n 404→ trackItems: MediaItem[],\n 405→ snapProximityMs: number\n 406→ ): number {\n 407→ let startTime = 0;\n 408→\n 409→ if (trackItems.length > 0) {\n 410→ // Find the closest item to the playhead\n 411→ const closestItem = this.findClosestItem(trackItems, playheadTime);\n 412→\n 413→ if (closestItem) {\n 414→ const itemEnd = closestItem.startTime + closestItem.duration;\n 415→ const distanceToStart = Math.abs(closestItem.startTime - playheadTime);\n 416→ const distanceToEnd = Math.abs(itemEnd - playheadTime);\n 417→\n 418→ // Check if playhead is close enough to snap\n 419→ if (distanceToEnd <= snapProximityMs) {\n 420→ // Snap to the end of the closest item\n 421→ startTime = itemEnd;\n 422→ } else if (distanceToStart <= snapProximityMs) {\n 423→ // Snap to the start of the closest item (place before it)\n 424→ // But we need to check if there's space before it\n 425→ const itemBefore = [...trackItems]\n 426→ .filter(item => item.startTime + item.duration <= closestItem.startTime)\n 427→ .sort((a, b) => a.startTime - b.startTime)\n 428→ .pop();\n 429→\n 430→ if (itemBefore) {\n 431→ startTime = itemBefore.startTime + itemBefore.duration;\n 432→ } else if (closestItem.startTime === 0) {\n 433→ // Can't place before an item at position 0, place after the last item instead\n 434→ const sortedItems = [...trackItems].sort((a, b) => a.startTime - b.startTime);\n 435→ const lastItem = sortedItems[sortedItems.length - 1];\n 436→ startTime = lastItem.startTime + lastItem.duration;\n 437→ } else {\n 438→ startTime = 0;\n 439→ }\n 440→ } else {\n 441→ // Playhead is not close to any item, check if it overlaps with any item\n 442→ const overlappingItem = trackItems.find(item => {\n 443→ const itemStart = item.startTime;\n 444→ const itemEnd = item.startTime + item.duration;\n 445→ return playheadTime >= itemStart && playheadTime < itemEnd;\n 446→ });\n 447→\n 448→ if (overlappingItem) {\n 449→ // Playhead overlaps with an item, place after the last item\n 450→ const sortedItems = [...trackItems].sort((a, b) => a.startTime - b.startTime);\n 451→ const lastItem = sortedItems[sortedItems.length - 1];\n 452→ startTime = lastItem.startTime + lastItem.duration;\n 453→ } else {\n 454→ // No overlap, place at playhead position\n 455→ startTime = playheadTime;\n 456→ }\n 457→ }\n 458→ } else {\n 459→ // No items in track, place at playhead position\n 460→ startTime = playheadTime;\n 461→ }\n 462→ } else {\n 463→ // Empty track, place at playhead position\n 464→ startTime = playheadTime;\n 465→ }\n 466→\n 467→ return startTime;\n 468→ }\n 469→\n 470→ /**\n 471→ * Validate and adjust item position to prevent overlaps\n 472→ * Returns adjusted start time if overlap is detected\n 473→ */\n 474→ validateItemPosition(\n 475→ item: MediaItem,\n 476→ trackItems: MediaItem[]\n 477→ ): number {\n 478→ // Check if the calculated position would cause overlap\n 479→ const hasOverlap = trackItems.some(existingItem => this.itemsOverlap(item, existingItem));\n 480→\n 481→ if (hasOverlap) {\n 482→ // Find a non-overlapping position: place after the last item\n 483→ const sortedItems = [...trackItems].sort((a, b) => a.startTime - b.startTime);\n 484→ const lastItem = sortedItems[sortedItems.length - 1];\n 485→ return lastItem.startTime + lastItem.duration;\n 486→ }\n 487→\n 488→ return item.startTime;\n 489→ }\n 490→}\n 491→\n\n<system-reminder>\nWhenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.\n</system-reminder>\n"}]},"parent_tool_use_id":null,"session_id":"d5b1bf94-1397-44f7-9390-3c57ba19d0b0","uuid":"6b18ef63-b85b-4751-a978-6237392d6cbf","tool_use_result":{"type":"text","file":{"filePath":"/tmp/gh-issue-solver-1764930855025/video-timeline/src/app/services/timeline-drag-drop.service.ts","content":"import { Injectable } from '@angular/core';\nimport { MediaItem } from '../models/timeline.models';\n\n/**\n * Service responsible for handling drag-and-drop logic and timeline positioning\n * Extracted from timeline.component.ts for better code organization\n */\n@Injectable({\n providedIn: 'root'\n})\nexport class Timel*************rvice {\n private readonly MIN_ITEM_DURATION = 100; // Minimum item duration in milliseconds\n readonly SNAP_DISTANCE_MS = 200; // Snapping distance in milliseconds for drag operations\n\n constructor() { }\n\n /**\n * Check if two items overlap\n */\n itemsOverlap(item1: MediaItem, item2: MediaItem): boolean {\n const item1End = item1.startTime + item1.duration;\n const item2End = item2.startTime + item2.duration;\n return !(item1End <= item2.startTime || item2End <= item1.startTime);\n }\n\n /**\n * Finds the closest item to the given time position in the track\n * Returns null if no items exist in the track\n */\n findClosestItem(trackItems: MediaItem[], time: number): MediaItem | null {\n if (trackItems.length === 0) return null;\n\n let closestItem = trackItems[0];\n let minDistance = Math.abs(closestItem.startTime - time);\n\n for (const item of trackItems) {\n const itemEnd = item.startTime + item.duration;\n\n // Calculate distance to the start of the item\n const distanceToStart = Math.abs(item.startTime - time);\n\n // Calculate distance to the end of the item\n const distanceToEnd = Math.abs(itemEnd - time);\n\n // Use the minimum distance (to either start or end of item)\n const distance = Math.min(distanceToStart, distanceToEnd);\n\n if (distance < minDistance) {\n minDistance = distance;\n closestItem = item;\n }\n }\n\n return closestItem;\n }\n\n /**\n * Find all gaps in the track\n * Used for finding the closest gap when requested position overlaps an item\n */\n findAllGaps(trackItems: MediaItem[]): { gapStart: number; gapEnd: number; leftItem: MediaItem | null; rightItem: MediaItem | null }[] {\n const gaps: { gapStart: number; gapEnd: number; leftItem: MediaItem | null; rightItem: MediaItem | null }[] = [];\n const sortedItems = [...trackItems].sort((a, b) => a.startTime - b.startTime);\n\n if (sortedItems.length === 0) {\n return [{ gapStart: 0, gapEnd: Infinity, leftItem: null, rightItem: null }];\n }\n\n // Gap before first item\n if (sortedItems[0].startTime > 0) {\n gaps.push({\n gapStart: 0,\n gapEnd: sortedItems[0].startTime,\n leftItem: null,\n rightItem: sortedItems[0]\n });\n }\n\n // Gaps between items\n for (let i = 0; i < sortedItems.length - 1; i++) {\n const leftItem = sortedItems[i];\n const rightItem = sortedItems[i + 1];\n const gapStart = leftItem.startTime + leftItem.duration;\n const gapEnd = rightItem.startTime;\n\n if (gapEnd > gapStart) {\n gaps.push({ gapStart, gapEnd, leftItem, rightItem });\n }\n }\n\n // Gap after last item\n const lastItem = sortedItems[sortedItems.length - 1];\n gaps.push({\n gapStart: lastItem.startTime + lastItem.duration,\n gapEnd: Infinity,\n leftItem: lastItem,\n rightItem: null\n });\n\n return gaps;\n }\n\n /**\n * Find the closest gap to the requested position\n * Used when the requested position overlaps an existing item\n */\n findClosestGap(\n requestedStartTime: number,\n gaps: { gapStart: number; gapEnd: number; leftItem: MediaItem | null; rightItem: MediaItem | null }[]\n ): { gapStart: number; gapEnd: number; leftItem: MediaItem | null; rightItem: MediaItem | null } {\n let closestGap = gaps[0];\n let minDistance = Infinity;\n\n for (const gap of gaps) {\n let distance: number;\n\n if (requestedStartTime < gap.gapStart) {\n // Requested position is before this gap\n distance = gap.gapStart - requestedStartTime;\n } else if (gap.gapEnd === Infinity || requestedStartTime < gap.gapEnd) {\n // Requested position is within this gap\n distance = 0;\n } else {\n // Requested position is after this gap\n distance = requestedStartTime - gap.gapEnd;\n }\n\n if (distance < minDistance) {\n minDistance = distance;\n closestGap = gap;\n }\n }\n\n return closestGap;\n }\n\n /**\n * Finds the gap where the requested position falls and returns gap boundaries\n * Returns null if the position doesn't fall in a valid gap\n */\n findGapForPosition(\n requestedStartTime: number,\n itemDuration: number,\n trackItems: MediaItem[]\n ): { gapStart: number; gapEnd: number; leftItem: MediaItem | null; rightItem: MediaItem | null } | null {\n const sortedItems = [...trackItems].sort((a, b) => a.startTime - b.startTime);\n\n // Empty track - infinite gap\n if (sortedItems.length === 0) {\n return { gapStart: 0, gapEnd: Infinity, leftItem: null, rightItem: null };\n }\n\n // Check gap before first item\n if (requestedStartTime < sortedItems[0].startTime) {\n return {\n gapStart: 0,\n gapEnd: sortedItems[0].startTime,\n leftItem: null,\n rightItem: sortedItems[0]\n };\n }\n\n // Check gaps between items\n for (let i = 0; i < sortedItems.length - 1; i++) {\n const leftItem = sortedItems[i];\n const rightItem = sortedItems[i + 1];\n const gapStart = leftItem.startTime + leftItem.duration;\n const gapEnd = rightItem.startTime;\n\n // Check if requested position falls within this gap\n if (requestedStartTime >= gapStart && requestedStartTime < gapEnd) {\n return { gapStart, gapEnd, leftItem, rightItem };\n }\n }\n\n // Check gap after last item\n const lastItem = sortedItems[sortedItems.length - 1];\n if (requestedStartTime >= lastItem.startTime + lastItem.duration) {\n return {\n gapStart: lastItem.startTime + lastItem.duration,\n gapEnd: Infinity,\n leftItem: lastItem,\n rightItem: null\n };\n }\n\n return null;\n }\n\n /**\n * Find snap targets for an item being dragged\n * Returns array of snap points (start/end positions of items on other tracks and playhead position)\n * Fixes issue #81: Enable snapping to placeholders on different tracks and playhead\n */\n findSnapTargets(\n draggedItemId: string,\n allTracks: { items: MediaItem[] }[],\n playheadPosition: number\n ): number[] {\n const snapTargets: number[] = [];\n\n // Add playhead position as a snap target\n snapTargets.push(playheadPosition);\n\n // Add start and end positions of all items on all tracks (except the dragged item)\n for (const track of allTracks) {\n for (const item of track.items) {\n if (item.id !== draggedItemId) {\n snapTargets.push(item.startTime);\n snapTargets.push(item.startTime + item.duration);\n }\n }\n }\n\n return snapTargets;\n }\n\n /**\n * Apply snapping to the requested start time if close to any snap target\n * Returns the snapped start time or the original if no snapping occurs\n * Fixes issue #81: Snap to nearby positions for more accurate positioning\n */\n applySnapping(\n requestedStartTime: number,\n itemDuration: number,\n snapTargets: number[],\n snapDistance: number = this.SNAP_DISTANCE_MS\n ): number {\n let snappedTime = requestedStartTime;\n let minDistance = snapDistance;\n\n for (const target of snapTargets) {\n // Check snapping to start of item\n const distanceToStart = Math.abs(requestedStartTime - target);\n if (distanceToStart < minDistance) {\n minDistance = distanceToStart;\n snappedTime = target;\n }\n\n // Check snapping to end of item (align item's end with target)\n const requestedEndTime = requestedStartTime + itemDuration;\n const distanceToEnd = Math.abs(requestedEndTime - target);\n if (distanceToEnd < minDistance) {\n minDistance = distanceToEnd;\n snappedTime = target - itemDuration;\n }\n }\n\n return snappedTime;\n }\n\n /**\n * Calculate valid drag position with automatic duration adjustment to fit gaps\n * Fixes issue #33: When dragging into a gap smaller than item duration,\n * adjust duration to fit instead of overlapping adjacent items\n * Fixes issue #36: When dragging overlaps an existing item, find the closest gap\n * instead of jumping to the end of the track\n * Fixes issue #38: Prevent overlaps by ensuring items always start at or after gap start\n * Fixes issue #48: Enforce strict totalDuration limit when dragging items\n * Fixes issue #81: Apply snapping to nearby placeholders and playhead\n */\n getValidDragPosition(\n item: MediaItem,\n requestedStartTime: number,\n trackItems: MediaItem[],\n totalDuration: number,\n snapTargets?: number[]\n ): { startTime: number; duration: number } {\n // Apply snapping if snap targets are provided\n let adjustedStartTime = requestedStartTime;\n if (snapTargets && snapTargets.length > 0) {\n adjustedStartTime = this.applySnapping(requestedStartTime, item.duration, snapTargets);\n }\n const otherItems = trackItems.filter(i => i.id !== item.id);\n\n // Empty track - place at requested position with original duration\n // but ensure we don't exceed totalDuration\n if (otherItems.length === 0) {\n const startTime = Math.max(0, adjustedStartTime);\n const maxDuration = totalDuration - startTime;\n return {\n startTime,\n duration: Math.min(item.duration, maxDuration)\n };\n }\n\n // Find which gap the adjusted position falls into\n let gap = this.findGapForPosition(adjustedStartTime, item.duration, otherItems);\n\n if (!gap) {\n // Position overlaps an existing item\n // Fix for issue #36: Find the closest gap instead of jumping to end\n const allGaps = this.findAllGaps(otherItems);\n gap = this.findClosestGap(adjustedStartTime, allGaps);\n }\n\n const gapSize = gap.gapEnd === Infinity ? Infinity : gap.gapEnd - gap.gapStart;\n\n // If gap is infinite (after last item), use original duration\n // Fix for issue #38: Ensure item starts at or after gap start to prevent overlap\n // Fix for issue #48: Respect totalDuration limit even in infinite gap\n if (gapSize === Infinity) {\n const startTime = Math.max(gap.gapStart, adjustedStartTime);\n const maxDuration = totalDuration - startTime;\n return {\n startTime,\n duration: Math.min(item.duration, maxDuration)\n };\n }\n\n // If item fits completely in the gap, use original duration\n // Fix for issue #48: Also check totalDuration limit\n if (item.duration <= gapSize) {\n // Make sure the item doesn't go past the gap end\n const maxStartTime = gap.gapEnd - item.duration;\n const finalStartTime = Math.max(gap.gapStart, Math.min(adjustedStartTime, maxStartTime));\n // Ensure we don't exceed totalDuration\n const maxDuration = totalDuration - finalStartTime;\n return {\n startTime: finalStartTime,\n duration: Math.min(item.duration, maxDuration)\n };\n }\n\n // Item doesn't fit - adjust duration to fit the gap\n // Respect minimum duration constraint\n // Fix for issue #48: Also respect totalDuration limit\n const maxDuration = totalDuration - gap.gapStart;\n const adjustedDuration = Math.max(this.MIN_ITEM_DURATION, Math.min(gapSize, maxDuration));\n\n return {\n startTime: gap.gapStart,\n duration: adjustedDuration\n };\n }\n\n /**\n * Get resize bounds for an item\n */\n getResizeBounds(\n item: MediaItem,\n trackItems: MediaItem[],\n edge: 'left' | 'right',\n totalDuration: number\n ): { minTime: number; maxTime: number } {\n const otherItems = trackItems.filter(i => i.id !== item.id)\n .sort((a, b) => a.startTime - b.startTime);\n\n if (edge === 'left') {\n // Find item to the left\n const leftItem = otherItems\n .filter(i => i.startTime + i.duration <= item.startTime)\n .pop();\n\n const minTime = leftItem ? leftItem.startTime + leftItem.duration : 0;\n\n // Calculate maxTime considering minimum duration\n const maxTi***********ation = item.startTime + item.duration - 100; // Keep minimum duration\n\n // Fix for issue #89: Consider mediaStartTime when calculating left edge bounds\n // We can only extend left as far as there is available media before the current trim point\n const curre***********tTime = item.mediaStartTime || 0;\n const maxTi**************Start = item.startTime - currentMediaStartTime;\n\n const maxTime = Math.max(maxTimeForMinDuration, maxTimeBasedOnMediaStart);\n\n return { minTime, maxTime };\n } else {\n // Find item to the right\n const rightItem = otherItems\n .find(i => i.startTime >= item.startTime + item.duration);\n\n const minTime = item.startTime + 100; // Minimum duration\n\n // Fix for issue #89: Consider mediaStartTime when calculating right edge bounds\n // The remaining available media duration is maxDuration minus the current mediaStartTime\n const curre***********tTime = item.mediaStartTime || 0;\n const remai************ation = item.maxDuration\n ? item.maxDuration - currentMediaStartTime\n : Infinity;\n\n const maxTi******************Media = item.maxDuration\n ? item.startTime + remainingMediaDuration\n : Infinity;\n\n // Fix for issue #48: Respect totalDuration limit when resizing right edge\n // Combine all constraints: adjacent item, totalDuration, and remaining media duration\n const maxTime = Math.min(\n rightItem ? rightItem.startTime : totalDuration,\n totalDuration,\n maxTimeBasedOnRemainingMedia\n );\n\n return { minTime, maxTime };\n }\n }\n\n /**\n * Calculate the start time for a new item based on playhead position and track items\n * Handles snapping to existing items and avoiding overlaps\n */\n calculateNewItemStartTime(\n playheadTime: number,\n trackItems: MediaItem[],\n snapProximityMs: number\n ): number {\n let startTime = 0;\n\n if (trackItems.length > 0) {\n // Find the closest item to the playhead\n const closestItem = this.findClosestItem(trackItems, playheadTime);\n\n if (closestItem) {\n const itemEnd = closestItem.startTime + closestItem.duration;\n const distanceToStart = Math.abs(closestItem.startTime - playheadTime);\n const distanceToEnd = Math.abs(itemEnd - playheadTime);\n\n // Check if playhead is close enough to snap\n if (distanceToEnd <= snapProximityMs) {\n // Snap to the end of the closest item\n startTime = itemEnd;\n } else if (distanceToStart <= snapProximityMs) {\n // Snap to the start of the closest item (place before it)\n // But we need to check if there's space before it\n const itemBefore = [...trackItems]\n .filter(item => item.startTime + item.duration <= closestItem.startTime)\n .sort((a, b) => a.startTime - b.startTime)\n .pop();\n\n if (itemBefore) {\n startTime = itemBefore.startTime + itemBefore.duration;\n } else if (closestItem.startTime === 0) {\n // Can't place before an item at position 0, place after the last item instead\n const sortedItems = [...trackItems].sort((a, b) => a.startTime - b.startTime);\n const lastItem = sortedItems[sortedItems.length - 1];\n startTime = lastItem.startTime + lastItem.duration;\n } else {\n startTime = 0;\n }\n } else {\n // Playhead is not close to any item, check if it overlaps with any item\n const overlappingItem = trackItems.find(item => {\n const itemStart = item.startTime;\n const itemEnd = item.startTime + item.duration;\n return playheadTime >= itemStart && playheadTime < itemEnd;\n });\n\n if (overlappingItem) {\n // Playhead overlaps with an item, place after the last item\n const sortedItems = [...trackItems].sort((a, b) => a.startTime - b.startTime);\n const lastItem = sortedItems[sortedItems.length - 1];\n startTime = lastItem.startTime + lastItem.duration;\n } else {\n // No overlap, place at playhead position\n startTime = playheadTime;\n }\n }\n } else {\n // No items in track, place at playhead position\n startTime = playheadTime;\n }\n } else {\n // Empty track, place at playhead position\n startTime = playheadTime;\n }\n\n return startTime;\n }\n\n /**\n * Validate and adjust item position to prevent overlaps\n * Returns adjusted start time if overlap is detected\n */\n validateItemPosition(\n item: MediaItem,\n trackItems: MediaItem[]\n ): number {\n // Check if the calculated position would cause overlap\n const hasOverlap = trackItems.some(existingItem => this.itemsOverlap(item, existingItem));\n\n if (hasOverlap) {\n // Find a non-overlapping position: place after the last item\n const sortedItems = [...trackItems].sort((a, b) => a.startTime - b.startTime);\n const lastItem = sortedItems[sortedItems.length - 1];\n return lastItem.startTime + lastItem.duration;\n }\n\n return item.startTime;\n }\n}\n","numLines":491,"startLine":1,"totalLines":491}}} | |
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| [2025-12-05T10:36:54.414Z] [INFO] { | |
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| "text": "Now I have a good understanding of the codebase. Let me update my todo list and start implementing the real media playback functionality:" | |
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| [2025-12-05T10:37:01.094Z] [INFO] { | |
| "type": "assistant", | |
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| "content": "Read and understand issue #112 requirements thoroughly", | |
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| "content": "Explore codebase structure and understand existing timeline implementation", | |
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| }, | |
| { | |
| "content": "Update MediaItem model to store url property", | |
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| }, | |
| { | |
| "content": "Implement Canvas-based preview display with layered rendering", | |
| "status": "pending", | |
| "activeForm": "Implementing Canvas display" | |
| }, | |
| { | |
| "content": "Implement playhead animation during playback", | |
| "status": "pending", | |
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| }, | |
| { | |
| "content": "Implement media synchronization with playhead position", | |
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| }, | |
| { | |
| "content": "Implement audio playback for audio items", | |
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| }, | |
| { | |
| "content": "Implement responsive media sizing with aspect ratio preservation", | |
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| }, | |
| { | |
| "content": "Write tests for playback functionality", | |
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| }, | |
| { | |
| "content": "Run local CI checks before pushing", | |
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| "activeForm": "Running local CI checks" | |
| }, | |
| { | |
| "content": "Finalize PR and ensure all CI checks pass", | |
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| } | |
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| } | |
| } | |
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| [2025-12-05T10:37:01.386Z] [INFO] { | |
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| { | |
| "tool_use_id": "toolu_01ANVs8riAms6Giu1VY1x2j8", | |
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| "content": "Todos have been modified successfully. Ensure that you continue to use the todo list to track your progress. Please proceed with the current tasks if applicable" | |
| } | |
| ] | |
| }, | |
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| "session_id": "d5b1bf94-1397-44f7-9390-3c57ba19d0b0", | |
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| "content": "Read and understand issue #112 requirements thoroughly", | |
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| }, | |
| { | |
| "content": "Explore codebase structure and understand existing timeline implementation", | |
| "status": "in_progress", | |
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| }, | |
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| "content": "Implement real media playback with Play button functionality", | |
| "status": "pending", | |
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| }, | |
| { | |
| "content": "Implement playback scrubber movement on play", | |
| "status": "pending", | |
| "activeForm": "Implementing scrubber movement" | |
| }, | |
| { | |
| "content": "Implement media playback when scrubber reaches media position", | |
| "status": "pending", | |
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| }, | |
| { | |
| "content": "Implement audio playback", | |
| "status": "pending", | |
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| }, | |
| { | |
| "content": "Implement Canvas-based video/image display", | |
| "status": "pending", | |
| "activeForm": "Implementing Canvas display" | |
| }, | |
| { | |
| "content": "Implement layer support for overlapping media", | |
| "status": "pending", | |
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| }, | |
| { | |
| "content": "Implement responsive media sizing", | |
| "status": "pending", | |
| "activeForm": "Implementing responsive sizing" | |
| }, | |
| { | |
| "content": "Write tests for playback functionality", | |
| "status": "pending", | |
| "activeForm": "Writing tests" | |
| }, | |
| { | |
| "content": "Run local CI checks before pushing", | |
| "status": "pending", | |
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| }, | |
| { | |
| "content": "Finalize PR and ensure all CI checks pass", | |
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| "content": "Implement Canvas-based preview display with layered rendering", | |
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| "content": "Implement playhead animation during playback", | |
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| }, | |
| { | |
| "content": "Implement media synchronization with playhead position", | |
| "status": "pending", | |
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| }, | |
| { | |
| "content": "Implement audio playback for audio items", | |
| "status": "pending", | |
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| }, | |
| { | |
| "content": "Implement responsive media sizing with aspect ratio preservation", | |
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| }, | |
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| "content": "Write tests for playback functionality", | |
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| "content": "Run local CI checks before pushing", | |
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| "content": "Finalize PR and ensure all CI checks pass", | |
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| } | |
| [2025-12-05T10:37:05.942Z] [INFO] { | |
| "type": "assistant", | |
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| "type": "message", | |
| "role": "assistant", | |
| "content": [ | |
| { | |
| "type": "text", | |
| "text": "Let me first update the MediaItem model to include the `url` property that was added in the MediaLibraryItem interface:" | |
| } | |
| ], | |
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| } | |
| [2025-12-05T10:37:07.052Z] [INFO] { | |
| "type": "assistant", | |
| "message": { | |
| "model": "claude-opus-4-5-20251101", | |
| "id": "msg_011aCXfUEqrtU6HsYCr1ka1u", | |
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| "type": "tool_use", | |
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| "name": "Read", | |
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| "file_path": "/tmp/gh-issue-solver-1764930855025/video-timeline/src/app/models/timeline.models.ts" | |
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| [2025-12-05T10:37:07.367Z] [INFO] { | |
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| { | |
| "tool_use_id": "toolu_01EBc2eZwoqzQkaVwAwmhawQ", | |
| "type": "tool_result", | |
| "content": " 1→export enum MediaType {\n 2→ VIDEO = 'video',\n 3→ AUDIO = 'audio',\n 4→ IMAGE = 'image'\n 5→}\n 6→\n 7→export interface MediaItem {\n 8→ id: string;\n 9→ type: MediaType;\n 10→ startTime: number; // milliseconds - position on timeline\n 11→ duration: number; // milliseconds - duration shown on timeline\n 12→ mediaStartTime?: number; // milliseconds - offset into source media (default: 0)\n 13→ maxDuration?: number; // milliseconds - maximum duration for audio/video placeholders\n 14→ trackId: string;\n 15→ name?: string;\n 16→ isPlaceholder?: boolean;\n 17→}\n 18→\n 19→export interface Track {\n 20→ id: string;\n 21→ name: string;\n 22→ order: number;\n 23→ items: MediaItem[];\n 24→}\n 25→\n 26→export interface TimelineState {\n 27→ tracks: Track[];\n 28→ playheadPosition: number; // milliseconds\n 29→ zoomLevel: number; // pixels per millisecond\n 30→ totalDuration: number; // milliseconds\n 31→ selectedItemId: string | null; // ID of selected media item\n 32→}\n 33→\n\n<system-reminder>\nWhenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.\n</system-reminder>\n" | |
| } | |
| ] | |
| }, | |
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| "filePath": "/tmp/gh-issue-solver-1764930855025/video-timeline/src/app/models/timeline.models.ts", | |
| "content": "export enum MediaType {\n VIDEO = 'video',\n AUDIO = 'audio',\n IMAGE = 'image'\n}\n\nexport interface MediaItem {\n id: string;\n type: MediaType;\n startTime: number; // milliseconds - position on timeline\n duration: number; // milliseconds - duration shown on timeline\n mediaStartTime?: number; // milliseconds - offset into source media (default: 0)\n maxDuration?: number; // milliseconds - maximum duration for audio/video placeholders\n trackId: string;\n name?: string;\n isPlaceholder?: boolean;\n}\n\nexport interface Track {\n id: string;\n name: string;\n order: number;\n items: MediaItem[];\n}\n\nexport interface TimelineState {\n tracks: Track[];\n playheadPosition: number; // milliseconds\n zoomLevel: number; // pixels per millisecond\n totalDuration: number; // milliseconds\n selectedItemId: string | null; // ID of selected media item\n}\n", | |
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| "totalLines": 33 | |
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| } | |
| [2025-12-05T10:37:15.280Z] [INFO] { | |
| "type": "assistant", | |
| "message": { | |
| "model": "claude-opus-4-5-20251101", | |
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| { | |
| "type": "tool_use", | |
| "id": "toolu_019APzpG3ocQz7WA3srXQzon", | |
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| "file_path": "/tmp/gh-issue-solver-1764930855025/video-timeline/src/app/models/timeline.models.ts", | |
| "old_string": "export interface MediaItem {\n id: string;\n type: MediaType;\n startTime: number; // milliseconds - position on timeline\n duration: number; // milliseconds - duration shown on timeline\n mediaStartTime?: number; // milliseconds - offset into source media (default: 0)\n maxDuration?: number; // milliseconds - maximum duration for audio/video placeholders\n trackId: string;\n name?: string;\n isPlaceholder?: boolean;\n}", | |
| "new_string": "export interface MediaItem {\n id: string;\n type: MediaType;\n startTime: number; // milliseconds - position on timeline\n duration: number; // milliseconds - duration shown on timeline\n mediaStartTime?: number; // milliseconds - offset into source media (default: 0)\n maxDuration?: number; // milliseconds - maximum duration for audio/video placeholders\n trackId: string;\n name?: string;\n url?: string; // URL to the actual media file\n isPlaceholder?: boolean;\n}" | |
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| "content": "The file /tmp/gh-issue-solver-1764930855025/video-timeline/src/app/models/timeline.models.ts has been updated. Here's the result of running `cat -n` on a snippet of the edited file:\n 3→ AUDIO = 'audio',\n 4→ IMAGE = 'image'\n 5→}\n 6→\n 7→export interface MediaItem {\n 8→ id: string;\n 9→ type: MediaType;\n 10→ startTime: number; // milliseconds - position on timeline\n 11→ duration: number; // milliseconds - duration shown on timeline\n 12→ mediaStartTime?: number; // milliseconds - offset into source media (default: 0)\n 13→ maxDuration?: number; // milliseconds - maximum duration for audio/video placeholders\n 14→ trackId: string;\n 15→ name?: string;\n 16→ url?: string; // URL to the actual media file\n 17→ isPlaceholder?: boolean;\n 18→}\n 19→\n 20→export interface Track {\n 21→ id: string;\n 22→ name: string;" | |
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| "oldString": "export interface MediaItem {\n id: string;\n type: MediaType;\n startTime: number; // milliseconds - position on timeline\n duration: number; // milliseconds - duration shown on timeline\n mediaStartTime?: number; // milliseconds - offset into source media (default: 0)\n maxDuration?: number; // milliseconds - maximum duration for audio/video placeholders\n trackId: string;\n name?: string;\n isPlaceholder?: boolean;\n}", | |
| "newString": "export interface MediaItem {\n id: string;\n type: MediaType;\n startTime: number; // milliseconds - position on timeline\n duration: number; // milliseconds - duration shown on timeline\n mediaStartTime?: number; // milliseconds - offset into source media (default: 0)\n maxDuration?: number; // milliseconds - maximum duration for audio/video placeholders\n trackId: string;\n name?: string;\n url?: string; // URL to the actual media file\n isPlaceholder?: boolean;\n}", | |
| "originalFile": "export enum MediaType {\n VIDEO = 'video',\n AUDIO = 'audio',\n IMAGE = 'image'\n}\n\nexport interface MediaItem {\n id: string;\n type: MediaType;\n startTime: number; // milliseconds - position on timeline\n duration: number; // milliseconds - duration shown on timeline\n mediaStartTime?: number; // milliseconds - offset into source media (default: 0)\n maxDuration?: number; // milliseconds - maximum duration for audio/video placeholders\n trackId: string;\n name?: string;\n isPlaceholder?: boolean;\n}\n\nexport interface Track {\n id: string;\n name: string;\n order: number;\n items: MediaItem[];\n}\n\nexport interface TimelineState {\n tracks: Track[];\n playheadPosition: number; // milliseconds\n zoomLevel: number; // pixels per millisecond\n totalDuration: number; // milliseconds\n selectedItemId: string | null; // ID of selected media item\n}\n", | |
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| " maxDuration?: number; // milliseconds - maximum duration for audio/video placeholders", | |
| " trackId: string;", | |
| " name?: string;", | |
| "+ url?: string; // URL to the actual media file", | |
| " isPlaceholder?: boolean;", | |
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| "text": "Now let me create the PlaybackService to manage playback state and media synchronization:" | |
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| "content": "import { Injectable, signal, computed } from '@angular/core';\nimport { MediaItem, MediaType, Track } from '../models/timeline.models';\n\n/**\n * Represents an active media element being played\n */\nexport interface ActiveMedia {\n item: MediaItem;\n element: HTMLVideoElement | HTMLAudioElement | HTMLImageElement;\n trackOrder: number; // For layering: lower order = rendered first (bottom layer)\n}\n\n/**\n * Service responsible for managing real media playback.\n * Handles synchronization of media elements with timeline playhead position.\n */\n@Injectable({\n providedIn: 'root'\n})\nexport class PlaybackService {\n // Playback state\n private _isPlaying = signal<boolean>(false);\n private _playheadPosition = signal<number>(0);\n private animationFrameId: number | null = null;\n private lastFrameTime: number = 0;\n\n // Active media elements\n private activeMediaMap = new Map<string, ActiveMedia>();\n\n // Canvas reference for rendering\n private canvas: HTMLCanvasElement | null = null;\n private canvasContext: Canva**************ext2D | null = null;\n\n // Exposed signals\n readonly isPlaying = this._isPlaying.asReadonly();\n readonly playheadPosition = this._playheadPosition.asReadonly();\n\n // Computed: current active media items for rendering\n readonly activeMediaItems = computed(() => {\n return Array.from(this.activeMediaMap.values())\n .sort((a, b) => a.trackOrder - b.trackOrder);\n });\n\n constructor() {}\n\n /**\n * Set the canvas element for rendering video/image preview\n */\n setCanvas(canvas: HTMLCanvasElement): void {\n this.canvas = canvas;\n this.canvasContext = canvas.getContext('2d');\n }\n\n /**\n * Update playhead position (called from timeline component)\n */\n setPlayheadPosition(position: number): void {\n this._playheadPosition.set(position);\n }\n\n /**\n * Start playback\n */\n play(tracks: Track[], totalDuration: number): void {\n if (this._isPlaying()) return;\n\n this._isPlaying.set(true);\n this.lastFrameTime = performance.now();\n this.startPlaybackLoop(tracks, totalDuration);\n }\n\n /**\n * Pause playback\n */\n pause(): void {\n this._isPlaying.set(false);\n if (this.animationFrameId !== null) {\n cancelAnimationFrame(this.animationFrameId);\n this.animationFrameId = null;\n }\n\n // Pause all active media\n for (const activeMedia of this.activeMediaMap.values()) {\n if (activeMedia.element instanceof HTMLVideoElement ||\n activeMedia.element instanceof HTMLAudioElement) {\n activeMedia.element.pause();\n }\n }\n }\n\n /**\n * Stop playback and reset position\n */\n stop(): void {\n this.pause();\n this._playheadPosition.set(0);\n this.cleanupAllMedia();\n }\n\n /**\n * Main playback loop - advances playhead and synchronizes media\n */\n private startPlaybackLoop(tracks: Track[], totalDuration: number): void {\n const animate = (currentTime: number) => {\n if (!this._isPlaying()) return;\n\n // Calculate delta time\n const deltaTime = currentTime - this.lastFrameTime;\n this.lastFrameTime = currentTime;\n\n // Update playhead position\n let newPosition = this._playheadPosition() + deltaTime;\n\n // Check if we've reached the end\n if (newPosition >= totalDuration) {\n newPosition = totalDuration;\n this.pause();\n }\n\n this._playheadPosition.set(newPosition);\n\n // Synchronize media with new position\n this.synchronizeMedia(tracks, newPosition);\n\n // Render to canvas\n this.renderToCanvas();\n\n // Continue animation loop\n if (this._isPlaying()) {\n this.animationFrameId = requestAnimationFrame(animate);\n }\n };\n\n this.animationFrameId = requestAnimationFrame(animate);\n }\n\n /**\n * Synchronize media elements with the current playhead position.\n * Start/stop media as playhead enters/exits their time range.\n */\n private synchronizeMedia(tracks: Track[], playheadTime: number): void {\n // Collect all items that should be active at current time\n const shouldBeActive = new Map<string, { item: MediaItem; trackOrder: number }>();\n\n for (const track of tracks) {\n for (const item of track.items) {\n const itemEnd = item.startTime + item.duration;\n\n // Check if playhead is within item's time range\n if (playheadTime >= item.startTime && playheadTime < itemEnd) {\n // Skip placeholders without URL\n if (item.isPlaceholder || !item.url) continue;\n\n shouldBeActive.set(item.id, { item, trackOrder: track.order });\n }\n }\n }\n\n // Stop media that should no longer be active\n for (const [id, activeMedia] of this.activeMediaMap.entries()) {\n if (!shouldBeActive.has(id)) {\n this.stopMedia(activeMedia);\n this.activeMediaMap.delete(id);\n }\n }\n\n // Start or update media that should be active\n for (const [id, { item, trackOrder }] of shouldBeActive.entries()) {\n if (!this.activeMediaMap.has(id)) {\n // Start new media\n this.startMedia(item, trackOrder, playheadTime);\n } else {\n // Update existing media position if needed\n this.updateMediaPosition(this.activeMediaMap.get(id)!, playheadTime);\n }\n }\n }\n\n /**\n * Start playing a media item\n */\n private startMedia(item: MediaItem, trackOrder: number, playheadTime: number): void {\n if (!item.url) return;\n\n const mediaStartTime = item.mediaStartTime || 0;\n const offsetInItem = playheadTime - item.startTime;\n const mediaTime = (mediaStartTime + offsetInItem) / 1000; // Convert to seconds\n\n let element: HTMLVideoElement | HTMLAudioElement | HTMLImageElement;\n\n switch (item.type) {\n case MediaType.VIDEO:\n element = document.createElement('video');\n (element as HTMLVideoElement).src = item.url;\n (element as HTMLVideoElement).currentTime = mediaTime;\n (element as HTMLVideoElement).muted = false;\n (element as HTMLVideoElement).play().catch(() => {\n // Autoplay may be blocked, try muted\n (element as HTMLVideoElement).muted = true;\n (element as HTMLVideoElement).play().catch(() => {});\n });\n break;\n\n case MediaType.AUDIO:\n element = document.createElement('audio');\n (element as HTMLAudioElement).src = item.url;\n (element as HTMLAudioElement).currentTime = mediaTime;\n (element as HTMLAudioElement).play().catch(() => {});\n break;\n\n case MediaType.IMAGE:\n element = document.createElement('img');\n (element as HTMLImageElement).src = item.url;\n (element as HTMLImageElement).crossOrigin = 'anonymous';\n break;\n\n default:\n return;\n }\n\n // For video, also set crossOrigin for canvas rendering\n if (element instanceof HTMLVideoElement) {\n element.crossOrigin = 'anonymous';\n }\n\n this.activeMediaMap.set(item.id, { item, element, trackOrder });\n }\n\n /**\n * Stop and cleanup a media element\n */\n private stopMedia(activeMedia: ActiveMedia): void {\n const { element } = activeMedia;\n\n if (element instanceof HTMLVideoElement || element instanceof HTMLAudioElement) {\n element.pause();\n element.src = '';\n element.load();\n }\n }\n\n /**\n * Update media playback position if it's out of sync\n */\n private updateMediaPosition(activeMedia: ActiveMedia, playheadTime: number): void {\n const { item, element } = activeMedia;\n\n if (element instanceof HTMLVideoElement || element instanceof HTMLAudioElement) {\n const mediaStartTime = item.mediaStartTime || 0;\n const offsetInItem = playheadTime - item.startTime;\n const expectedMediaTime = (mediaStartTime + offsetInItem) / 1000;\n const currentMediaTime = element.currentTime;\n\n // If more than 0.3 seconds out of sync, seek to correct position\n if (Math.abs(currentMediaTime - expectedMediaTime) > 0.3) {\n element.currentTime = expectedMediaTime;\n }\n }\n }\n\n /**\n * Render active media to canvas with proper layering\n */\n private renderToCanvas(): void {\n if (!this.canvas || !this.canvasContext) return;\n\n const ctx = this.canvasContext;\n const canvasWidth = this.canvas.width;\n const canvasHeight = this.canvas.height;\n\n // Clear canvas\n ctx.fillStyle = '#1a1a1a';\n ctx.fillRect(0, 0, canvasWidth, canvasHeight);\n\n // Get active media sorted by track order (lower order = bottom layer)\n const sortedMedia = Array.from(this.activeMediaMap.values())\n .sort((a, b) => a.trackOrder - b.trackOrder);\n\n // Render each media item\n for (const activeMedia of sortedMedia) {\n this.renderMediaItem(activeMedia, ctx, canvasWidth, canvasHeight);\n }\n }\n\n /**\n * Render a single media item to canvas with proper scaling\n */\n private renderMediaItem(\n activeMedia: ActiveMedia,\n ctx: CanvasRenderingContext2D,\n canvasWidth: number,\n canvasHeight: number\n ): void {\n const { element, item } = activeMedia;\n\n // Only render video and image types\n if (item.type === MediaType.AUDIO) return;\n\n let source: CanvasImageSource | null = null;\n let sourceWidth = 0;\n let sourceHeight = 0;\n\n if (element instanceof HTMLVideoElement) {\n // Check if video has loaded enough to render\n if (element.readyState < 2) return;\n source = element;\n sourceWidth = element.videoWidth;\n sourceHeight = element.videoHeight;\n } else if (element instanceof HTMLImageElement) {\n // Check if image is loaded\n if (!element.complete || element.naturalWidth === 0) return;\n source = element;\n sourceWidth = element.naturalWidth;\n sourceHeight = element.naturalHeight;\n }\n\n if (!source || sourceWidth === 0 || sourceHeight === 0) return;\n\n // Calculate scaled dimensions maintaining aspect ratio\n const { width, height, x, y } = this.calculateScaledDimensions(\n sourceWidth,\n sourceHeight,\n canvasWidth,\n canvasHeight\n );\n\n // Draw the media\n ctx.drawImage(source, x, y, width, height);\n }\n\n /**\n * Calculate dimensions for media that fit within canvas while preserving aspect ratio\n */\n private calculateScaledDimensions(\n sourceWidth: number,\n sourceHeight: number,\n canvasWidth: number,\n canvasHeight: number\n ): { width: number; height: number; x: number; y: number } {\n const sourceAspect = sourceWidth / sourceHeight;\n const canvasAspect = canvasWidth / canvasHeight;\n\n let width: number;\n let height: number;\n\n if (sourceAspect > canvasAspect) {\n // Source is wider - fit to width\n width = canvasWidth;\n height = canvasWidth / sourceAspect;\n } else {\n // Source is taller - fit to height\n height = canvasHeight;\n width = canvasHeight * sourceAspect;\n }\n\n // Center the media\n const x = (canvasWidth - width) / 2;\n const y = (canvasHeight - height) / 2;\n\n return { width, height, x, y };\n }\n\n /**\n * Cleanup all active media\n */\n private cleanupAllMedia(): void {\n for (const activeMedia of this.activeMediaMap.values()) {\n this.stopMedia(activeMedia);\n }\n this.activeMediaMap.clear();\n }\n\n /**\n * Seek to a specific position and update media accordingly\n */\n seek(tracks: Track[], position: number): void {\n this._playheadPosition.set(position);\n\n // Update all active media positions\n for (const activeMedia of this.activeMediaMap.values()) {\n const { item, element } = activeMedia;\n const itemEnd = item.startTime + item.duration;\n\n // Check if media should still be active at new position\n if (position < item.startTime || position >= itemEnd) {\n // Media should no longer be active\n this.stopMedia(activeMedia);\n this.activeMediaMap.delete(item.id);\n } else if (element instanceof HTMLVideoElement || element instanceof HTMLAudioElement) {\n // Seek to correct position in media\n const mediaStartTime = item.mediaStartTime || 0;\n const offsetInItem = position - item.startTime;\n element.currentTime = (mediaStartTime + offsetInItem) / 1000;\n }\n }\n\n // Synchronize to add any new media that should be active\n this.synchronizeMedia(tracks, position);\n\n // Render current frame\n this.renderToCanvas();\n }\n\n /**\n * Force render the current state to canvas (useful when paused)\n */\n renderCurrentFrame(): void {\n this.renderToCanvas();\n }\n}\n" | |
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| "content": "import { Injectable, signal, computed } from '@angular/core';\nimport { MediaItem, MediaType, Track } from '../models/timeline.models';\n\n/**\n * Represents an active media element being played\n */\nexport interface ActiveMedia {\n item: MediaItem;\n element: HTMLVideoElement | HTMLAudioElement | HTMLImageElement;\n trackOrder: number; // For layering: lower order = rendered first (bottom layer)\n}\n\n/**\n * Service responsible for managing real media playback.\n * Handles synchronization of media elements with timeline playhead position.\n */\n@Injectable({\n providedIn: 'root'\n})\nexport class PlaybackService {\n // Playback state\n private _isPlaying = signal<boolean>(false);\n private _playheadPosition = signal<number>(0);\n private animationFrameId: number | null = null;\n private lastFrameTime: number = 0;\n\n // Active media elements\n private activeMediaMap = new Map<string, ActiveMedia>();\n\n // Canvas reference for rendering\n private canvas: HTMLCanvasElement | null = null;\n private canvasContext: Canva**************ext2D | null = null;\n\n // Exposed signals\n readonly isPlaying = this._isPlaying.asReadonly();\n readonly playheadPosition = this._playheadPosition.asReadonly();\n\n // Computed: current active media items for rendering\n readonly activeMediaItems = computed(() => {\n return Array.from(this.activeMediaMap.values())\n .sort((a, b) => a.trackOrder - b.trackOrder);\n });\n\n constructor() {}\n\n /**\n * Set the canvas element for rendering video/image preview\n */\n setCanvas(canvas: HTMLCanvasElement): void {\n this.canvas = canvas;\n this.canvasContext = canvas.getContext('2d');\n }\n\n /**\n * Update playhead position (called from timeline component)\n */\n setPlayheadPosition(position: number): void {\n this._playheadPosition.set(position);\n }\n\n /**\n * Start playback\n */\n play(tracks: Track[], totalDuration: number): void {\n if (this._isPlaying()) return;\n\n this._isPlaying.set(true);\n this.lastFrameTime = performance.now();\n this.startPlaybackLoop(tracks, totalDuration);\n }\n\n /**\n * Pause playback\n */\n pause(): void {\n this._isPlaying.set(false);\n if (this.animationFrameId !== null) {\n cancelAnimationFrame(this.animationFrameId);\n this.animationFrameId = null;\n }\n\n // Pause all active media\n for (const activeMedia of this.activeMediaMap.values()) {\n if (activeMedia.element instanceof HTMLVideoElement ||\n activeMedia.element instanceof HTMLAudioElement) {\n activeMedia.element.pause();\n }\n }\n }\n\n /**\n * Stop playback and reset position\n */\n stop(): void {\n this.pause();\n this._playheadPosition.set(0);\n this.cleanupAllMedia();\n }\n\n /**\n * Main playback loop - advances playhead and synchronizes media\n */\n private startPlaybackLoop(tracks: Track[], totalDuration: number): void {\n const animate = (currentTime: number) => {\n if (!this._isPlaying()) return;\n\n // Calculate delta time\n const deltaTime = currentTime - this.lastFrameTime;\n this.lastFrameTime = currentTime;\n\n // Update playhead position\n let newPosition = this._playheadPosition() + deltaTime;\n\n // Check if we've reached the end\n if (newPosition >= totalDuration) {\n newPosition = totalDuration;\n this.pause();\n }\n\n this._playheadPosition.set(newPosition);\n\n // Synchronize media with new position\n this.synchronizeMedia(tracks, newPosition);\n\n // Render to canvas\n this.renderToCanvas();\n\n // Continue animation loop\n if (this._isPlaying()) {\n this.animationFrameId = requestAnimationFrame(animate);\n }\n };\n\n this.animationFrameId = requestAnimationFrame(animate);\n }\n\n /**\n * Synchronize media elements with the current playhead position.\n * Start/stop media as playhead enters/exits their time range.\n */\n private synchronizeMedia(tracks: Track[], playheadTime: number): void {\n // Collect all items that should be active at current time\n const shouldBeActive = new Map<string, { item: MediaItem; trackOrder: number }>();\n\n for (const track of tracks) {\n for (const item of track.items) {\n const itemEnd = item.startTime + item.duration;\n\n // Check if playhead is within item's time range\n if (playheadTime >= item.startTime && playheadTime < itemEnd) {\n // Skip placeholders without URL\n if (item.isPlaceholder || !item.url) continue;\n\n shouldBeActive.set(item.id, { item, trackOrder: track.order });\n }\n }\n }\n\n // Stop media that should no longer be active\n for (const [id, activeMedia] of this.activeMediaMap.entries()) {\n if (!shouldBeActive.has(id)) {\n this.stopMedia(activeMedia);\n this.activeMediaMap.delete(id);\n }\n }\n\n // Start or update media that should be active\n for (const [id, { item, trackOrder }] of shouldBeActive.entries()) {\n if (!this.activeMediaMap.has(id)) {\n // Start new media\n this.startMedia(item, trackOrder, playheadTime);\n } else {\n // Update existing media position if needed\n this.updateMediaPosition(this.activeMediaMap.get(id)!, playheadTime);\n }\n }\n }\n\n /**\n * Start playing a media item\n */\n private startMedia(item: MediaItem, trackOrder: number, playheadTime: number): void {\n if (!item.url) return;\n\n const mediaStartTime = item.mediaStartTime || 0;\n const offsetInItem = playheadTime - item.startTime;\n const mediaTime = (mediaStartTime + offsetInItem) / 1000; // Convert to seconds\n\n let element: HTMLVideoElement | HTMLAudioElement | HTMLImageElement;\n\n switch (item.type) {\n case MediaType.VIDEO:\n element = document.createElement('video');\n (element as HTMLVideoElement).src = item.url;\n (element as HTMLVideoElement).currentTime = mediaTime;\n (element as HTMLVideoElement).muted = false;\n (element as HTMLVideoElement).play().catch(() => {\n // Autoplay may be blocked, try muted\n (element as HTMLVideoElement).muted = true;\n (element as HTMLVideoElement).play().catch(() => {});\n });\n break;\n\n case MediaType.AUDIO:\n element = document.createElement('audio');\n (element as HTMLAudioElement).src = item.url;\n (element as HTMLAudioElement).currentTime = mediaTime;\n (element as HTMLAudioElement).play().catch(() => {});\n break;\n\n case MediaType.IMAGE:\n element = document.createElement('img');\n (element as HTMLImageElement).src = item.url;\n (element as HTMLImageElement).crossOrigin = 'anonymous';\n break;\n\n default:\n return;\n }\n\n // For video, also set crossOrigin for canvas rendering\n if (element instanceof HTMLVideoElement) {\n element.crossOrigin = 'anonymous';\n }\n\n this.activeMediaMap.set(item.id, { item, element, trackOrder });\n }\n\n /**\n * Stop and cleanup a media element\n */\n private stopMedia(activeMedia: ActiveMedia): void {\n const { element } = activeMedia;\n\n if (element instanceof HTMLVideoElement || element instanceof HTMLAudioElement) {\n element.pause();\n element.src = '';\n element.load();\n }\n }\n\n /**\n * Update media playback position if it's out of sync\n */\n private updateMediaPosition(activeMedia: ActiveMedia, playheadTime: number): void {\n const { item, element } = activeMedia;\n\n if (element instanceof HTMLVideoElement || element instanceof HTMLAudioElement) {\n const mediaStartTime = item.mediaStartTime || 0;\n const offsetInItem = playheadTime - item.startTime;\n const expectedMediaTime = (mediaStartTime + offsetInItem) / 1000;\n const currentMediaTime = element.currentTime;\n\n // If more than 0.3 seconds out of sync, seek to correct position\n if (Math.abs(currentMediaTime - expectedMediaTime) > 0.3) {\n element.currentTime = expectedMediaTime;\n }\n }\n }\n\n /**\n * Render active media to canvas with proper layering\n */\n private renderToCanvas(): void {\n if (!this.canvas || !this.canvasContext) return;\n\n const ctx = this.canvasContext;\n const canvasWidth = this.canvas.width;\n const canvasHeight = this.canvas.height;\n\n // Clear canvas\n ctx.fillStyle = '#1a1a1a';\n ctx.fillRect(0, 0, canvasWidth, canvasHeight);\n\n // Get active media sorted by track order (lower order = bottom layer)\n const sortedMedia = Array.from(this.activeMediaMap.values())\n .sort((a, b) => a.trackOrder - b.trackOrder);\n\n // Render each media item\n for (const activeMedia of sortedMedia) {\n this.renderMediaItem(activeMedia, ctx, canvasWidth, canvasHeight);\n }\n }\n\n /**\n * Render a single media item to canvas with proper scaling\n */\n private renderMediaItem(\n activeMedia: ActiveMedia,\n ctx: CanvasRenderingContext2D,\n canvasWidth: number,\n canvasHeight: number\n ): void {\n const { element, item } = activeMedia;\n\n // Only render video and image types\n if (item.type === MediaType.AUDIO) return;\n\n let source: CanvasImageSource | null = null;\n let sourceWidth = 0;\n let sourceHeight = 0;\n\n if (element instanceof HTMLVideoElement) {\n // Check if video has loaded enough to render\n if (element.readyState < 2) return;\n source = element;\n sourceWidth = element.videoWidth;\n sourceHeight = element.videoHeight;\n } else if (element instanceof HTMLImageElement) {\n // Check if image is loaded\n if (!element.complete || element.naturalWidth === 0) return;\n source = element;\n sourceWidth = element.naturalWidth;\n sourceHeight = element.naturalHeight;\n }\n\n if (!source || sourceWidth === 0 || sourceHeight === 0) return;\n\n // Calculate scaled dimensions maintaining aspect ratio\n const { width, height, x, y } = this.calculateScaledDimensions(\n sourceWidth,\n sourceHeight,\n canvasWidth,\n canvasHeight\n );\n\n // Draw the media\n ctx.drawImage(source, x, y, width, height);\n }\n\n /**\n * Calculate dimensions for media that fit within canvas while preserving aspect ratio\n */\n private calculateScaledDimensions(\n sourceWidth: number,\n sourceHeight: number,\n canvasWidth: number,\n canvasHeight: number\n ): { width: number; height: number; x: number; y: number } {\n const sourceAspect = sourceWidth / sourceHeight;\n const canvasAspect = canvasWidth / canvasHeight;\n\n let width: number;\n let height: number;\n\n if (sourceAspect > canvasAspect) {\n // Source is wider - fit to width\n width = canvasWidth;\n height = canvasWidth / sourceAspect;\n } else {\n // Source is taller - fit to height\n height = canvasHeight;\n width = canvasHeight * sourceAspect;\n }\n\n // Center the media\n const x = (canvasWidth - width) / 2;\n const y = (canvasHeight - height) / 2;\n\n return { width, height, x, y };\n }\n\n /**\n * Cleanup all active media\n */\n private cleanupAllMedia(): void {\n for (const activeMedia of this.activeMediaMap.values()) {\n this.stopMedia(activeMedia);\n }\n this.activeMediaMap.clear();\n }\n\n /**\n * Seek to a specific position and update media accordingly\n */\n seek(tracks: Track[], position: number): void {\n this._playheadPosition.set(position);\n\n // Update all active media positions\n for (const activeMedia of this.activeMediaMap.values()) {\n const { item, element } = activeMedia;\n const itemEnd = item.startTime + item.duration;\n\n // Check if media should still be active at new position\n if (position < item.startTime || position >= itemEnd) {\n // Media should no longer be active\n this.stopMedia(activeMedia);\n this.activeMediaMap.delete(item.id);\n } else if (element instanceof HTMLVideoElement || element instanceof HTMLAudioElement) {\n // Seek to correct position in media\n const mediaStartTime = item.mediaStartTime || 0;\n const offsetInItem = position - item.startTime;\n element.currentTime = (mediaStartTime + offsetInItem) / 1000;\n }\n }\n\n // Synchronize to add any new media that should be active\n this.synchronizeMedia(tracks, position);\n\n // Render current frame\n this.renderToCanvas();\n }\n\n /**\n * Force render the current state to canvas (useful when paused)\n */\n renderCurrentFrame(): void {\n this.renderToCanvas();\n }\n}\n", | |
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| [2025-12-05T10:38:11.628Z] [INFO] { | |
| "type": "assistant", | |
| "message": { | |
| "model": "claude-opus-4-5-20251101", | |
| "id": "msg_01AFHTKhf6fdj7FppQesBDkj", | |
| "type": "message", | |
| "role": "assistant", | |
| "content": [ | |
| { | |
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| "content": "Read and understand issue #112 requirements thoroughly", | |
| "status": "completed", | |
| "activeForm": "Reading issue requirements" | |
| }, | |
| { | |
| "content": "Explore codebase structure and understand existing timeline implementation", | |
| "status": "completed", | |
| "activeForm": "Exploring codebase structure" | |
| }, | |
| { | |
| "content": "Create PlaybackService to manage playback state and control media elements", | |
| "status": "completed", | |
| "activeForm": "Creating PlaybackService" | |
| }, | |
| { | |
| "content": "Update MediaItem model to store url property", | |
| "status": "completed", | |
| "activeForm": "Updating MediaItem model" | |
| }, | |
| { | |
| "content": "Update timeline component to use PlaybackService and Canvas preview", | |
| "status": "in_progress", | |
| "activeForm": "Updating timeline component" | |
| }, | |
| { | |
| "content": "Update onMediaSelected to pass URL from MediaLibraryItem to MediaItem", | |
| "status": "pending", | |
| "activeForm": "Updating media selection" | |
| }, | |
| { | |
| "content": "Write tests for playback functionality", | |
| "status": "pending", | |
| "activeForm": "Writing tests" | |
| }, | |
| { | |
| "content": "Run local CI checks before pushing", | |
| "status": "pending", | |
| "activeForm": "Running local CI checks" | |
| }, | |
| { | |
| "content": "Finalize PR and ensure all CI checks pass", | |
| "status": "pending", | |
| "activeForm": "Finalizing PR" | |
| } | |
| ] | |
| } | |
| } | |
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| [2025-12-05T10:38:11.968Z] [INFO] { | |
| "type": "user", | |
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| "content": [ | |
| { | |
| "tool_use_id": "toolu_01J9Co7xz8TZSwxiVDSDbLHc", | |
| "type": "tool_result", | |
| "content": "Todos have been modified successfully. Ensure that you continue to use the todo list to track your progress. Please proceed with the current tasks if applicable" | |
| } | |
| ] | |
| }, | |
| "parent_tool_use_id": null, | |
| "session_id": "d5b1bf94-1397-44f7-9390-3c57ba19d0b0", | |
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| { | |
| "content": "Read and understand issue #112 requirements thoroughly", | |
| "status": "completed", | |
| "activeForm": "Reading issue requirements" | |
| }, | |
| { | |
| "content": "Explore codebase structure and understand existing timeline implementation", | |
| "status": "completed", | |
| "activeForm": "Exploring codebase structure" | |
| }, | |
| { | |
| "content": "Create PlaybackService to manage playback state and control media elements", | |
| "status": "in_progress", | |
| "activeForm": "Creating PlaybackService" | |
| }, | |
| { | |
| "content": "Update MediaItem model to store url property", | |
| "status": "pending", | |
| "activeForm": "Updating MediaItem model" | |
| }, | |
| { | |
| "content": "Implement Canvas-based preview display with layered rendering", | |
| "status": "pending", | |
| "activeForm": "Implementing Canvas display" | |
| }, | |
| { | |
| "content": "Implement playhead animation during playback", | |
| "status": "pending", | |
| "activeForm": "Implementing playhead animation" | |
| }, | |
| { | |
| "content": "Implement media synchronization with playhead position", | |
| "status": "pending", | |
| "activeForm": "Implementing media sync" | |
| }, | |
| { | |
| "content": "Implement audio playback for audio items", | |
| "status": "pending", | |
| "activeForm": "Implementing audio playback" | |
| }, | |
| { | |
| "content": "Implement responsive media sizing with aspect ratio preservation", | |
| "status": "pending", | |
| "activeForm": "Implementing responsive sizing" | |
| }, | |
| { | |
| "content": "Write tests for playback functionality", | |
| "status": "pending", | |
| "activeForm": "Writing tests" | |
| }, | |
| { | |
| "content": "Run local CI checks before pushing", | |
| "status": "pending", | |
| "activeForm": "Running local CI checks" | |
| }, | |
| { | |
| "content": "Finalize PR and ensure all CI checks pass", | |
| "status": "pending", | |
| "activeForm": "Finalizing PR" | |
| } | |
| ], | |
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| { | |
| "content": "Read and understand issue #112 requirements thoroughly", | |
| "status": "completed", | |
| "activeForm": "Reading issue requirements" | |
| }, | |
| { | |
| "content": "Explore codebase structure and understand existing timeline implementation", | |
| "status": "completed", | |
| "activeForm": "Exploring codebase structure" | |
| }, | |
| { | |
| "content": "Create PlaybackService to manage playback state and control media elements", | |
| "status": "completed", | |
| "activeForm": "Creating PlaybackService" | |
| }, | |
| { | |
| "content": "Update MediaItem model to store url property", | |
| "status": "completed", | |
| "activeForm": "Updating MediaItem model" | |
| }, | |
| { | |
| "content": "Update timeline component to use PlaybackService and Canvas preview", | |
| "status": "in_progress", | |
| "activeForm": "Updating timeline component" | |
| }, | |
| { | |
| "content": "Update onMediaSelected to pass URL from MediaLibraryItem to MediaItem", | |
| "status": "pending", | |
| "activeForm": "Updating media selection" | |
| }, | |
| { | |
| "content": "Write tests for playback functionality", | |
| "status": "pending", | |
| "activeForm": "Writing tests" | |
| }, | |
| { | |
| "content": "Run local CI checks before pushing", | |
| "status": "pending", | |
| "activeForm": "Running local CI checks" | |
| }, | |
| { | |
| "content": "Finalize PR and ensure all CI checks pass", | |
| "status": "pending", | |
| "activeForm": "Finalizing PR" | |
| } | |
| ] | |
| } | |
| } | |
| [2025-12-05T10:38:16.194Z] [INFO] { | |
| "type": "assistant", | |
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| "model": "claude-opus-4-5-20251101", | |
| "id": "msg_01A75uhRgwk3wyLf78mUh9k6", | |
| "type": "message", | |
| "role": "assistant", | |
| "content": [ | |
| { | |
| "type": "text", | |
| "text": "Now let me update the timeline component to integrate the PlaybackService and replace the placeholder preview area with a Canvas-based preview:" | |
| } | |
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| [2025-12-05T10:38:16.560Z] [INFO] { | |
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| "file_path": "/tmp/gh-issue-solver-1764930855025/video-timeline/src/app/components/timeline/timeline.component.ts" | |
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| [2025-12-05T10:38:17.631Z] [INFO] {"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01EseCqPnUTbLXFF8Cn5FpEa","type":"tool_result","content":" 1→import { Component, signal, computed, ViewChild, ElementRef } from '@angular/core';\n 2→import { CommonModule } from '@angular/common';\n 3→import { MediaType, MediaItem, Track, TimelineState } from '../../models/timeline.models';\n 4→import { MediaLibraryComponent, MediaLibraryItem } from '../media-library/media-library.component';\n 5→import { Media***********onent } from '../media-toolbar/media-toolbar.component';\n 6→import { Notif************onent } from '../notifications/notifications.component';\n 7→import { Timel*************rvice } from '../../services/timeline-drag-drop.service';\n 8→\n 9→@Component({\n 10→ selector: 'app-timeline',\n 11→ standalone: true,\n 12→ imports: [CommonModule, MediaLibraryComponent, MediaToolbarComponent, NotificationsComponent],\n 13→ templateUrl: './timeline.component.html',\n 14→ styleUrl: './timeline.component.css'\n 15→})\n 16→export class TimelineComponent {\n 17→ // Zoom levels: pixels per second\n 18→ private readonly MIN_ZOOM = 10;\n 19→ private readonly MAX_ZOOM = 200;\n 20→ private readonly ZOOM_STEP = 20;\n 21→ readonly TRACK_HEADER_WIDTH = 150; // Width of track header in pixels\n 22→ private readonly SNAP_PROXIMITY_MS = 500; // Snap to item if playhead is within 500ms\n 23→ private readonly MIN_ITEM_DURATION = 100; // Minimum item duration in milliseconds\n 24→\n 25→ // View references\n 26→ @ViewChild('timelineRuler') timelineRuler?: ElementRef<HTMLElement>;\n 27→ @ViewChild('notifications') notificationsComponent?: NotificationsComponent;\n 28→\n 29→ // Timeline state\n 30→ readonly state = signal<TimelineState>({\n 31→ tracks: [\n 32→ { id: '1', name: 'Track 1', order: 0, items: [] },\n 33→ { id: '2', name: 'Track 2', order: 1, items: [] }\n 34→ ],\n 35→ playheadPosition: 0,\n 36→ zoomLevel: 50, // pixels per second\n 37→ totalDuration: 120000, // 120 seconds in milliseconds\n 38→ selectedItemId: null\n 39→ });\n 40→\n 41→ // Computed values\n 42→ readonly pixel**********econd = computed(() => {\n 43→ return this.state().zoomLevel / 1000;\n 44→ });\n 45→\n 46→ readonly timelineWidth = computed(() => {\n 47→ const state = this.state();\n 48→ // Calculate the maximum end time across all tracks\n 49→ let maxEndTime = state.totalDuration;\n 50→\n 51→ for (const track of state.tracks) {\n 52→ for (const item of track.items) {\n 53→ const itemEndTime = item.startTime + item.duration;\n 54→ if (itemEndTime > maxEndTime) {\n 55→ maxEndTime = itemEndTime;\n 56→ }\n 57→ }\n 58→ }\n 59→\n 60→ return maxEndTime * this.pixelsPerMillisecond();\n 61→ });\n 62→\n 63→ readonly timelineLineHeight = computed(() => {\n 64→ const state = this.state();\n 65→ return state.tracks.length * 60 + 32;\n 66→ });\n 67→\n 68→ readonly playheadPosition = computed(() => {\n 69→ return this.state().playheadPosition * this.pixelsPerMillisecond();\n 70→ });\n 71→\n 72→ readonly playh************ition = computed(() => {\n 73→ return this.playheadPosition() + this.TRACK_HEADER_WIDTH;\n 74→ });\n 75→\n 76→ // Computed: whether a media item is currently selected\n 77→ readonly hasSelectedItem = computed(() => {\n 78→ return this.state().selectedItemId !== null;\n 79→ });\n 80→\n 81→ // Dragging state\n 82→ private draggedItem: MediaItem | null = null;\n 83→ private draggedItemOriginalTrackId: string | null = null;\n 84→ private dragOffsetTime: number = 0; // Offset in milliseconds from item start to cursor position\n 85→ private isDraggingPlayhead = false;\n 86→ private isDraggingFromRuler = false;\n 87→ private resizingItem: { item: MediaItem; edge: 'left' | 'right' } | null = null;\n 88→ private mouseDownPosition: { x: number; y: number } | null = null; // Track mouse down position for click detection\n 89→\n 90→ // Video preview state\n 91→ readonly isPlaying = signal<boolean>(false);\n 92→\n 93→ // Duration editor state\n 94→ readonly showDurationEditor = signal<boolean>(false);\n 95→ private editedDuration: number = 120; // Duration in seconds\n 96→\n 97→ // Media library state\n 98→ readonly showMediaLibrary = signal<boolean>(false);\n 99→ private mediaLibraryTargetTrackId: string | null = null;\n 100→\n 101→ // Clipboard state for copy/paste functionality\n 102→ private readonly clipboardItem = signal<MediaItem | null>(null);\n 103→ private readonly clipb************ackId = signal<string | null>(null);\n 104→\n 105→ // Computed: whether a media item is in clipboard\n 106→ readonly hasClipboardItem = computed(() => {\n 107→ return this.clipboardItem() !== null;\n 108→ });\n 109→\n 110→ constructor(private dragDropService: TimelineDragDropService) {\n 111→ }\n 112→\n 113→ // Track management\n 114→ addTrack(): void {\n 115→ const currentState = this.state();\n 116→ const newTrack: Track = {\n 117→ id: `track-${Date.now()}`,\n 118→ name: `Track ${currentState.tracks.length + 1}`,\n 119→ order: currentState.tracks.length,\n 120→ items: []\n 121→ };\n 122→\n 123→ this.state.update(s => ({\n 124→ ...s,\n 125→ tracks: [...s.tracks, newTrack]\n 126→ }));\n 127→ }\n 128→\n 129→ removeTrack(trackId: string): void {\n 130→ const currentState = this.state();\n 131→ if (currentState.tracks.length <= 1) {\n 132→ return; // Keep at least one track\n 133→ }\n 134→\n 135→ this.state.update(s => ({\n 136→ ...s,\n 137→ tracks: s.tracks.filter(t => t.id !== trackId)\n 138→ }));\n 139→ }\n 140→\n 141→ // Zoom controls\n 142→ zoomIn(): void {\n 143→ this.state.update(s => ({\n 144→ ...s,\n 145→ zoomLevel: Math.min(s.zoomLevel + this.ZOOM_STEP, this.MAX_ZOOM)\n 146→ }));\n 147→ }\n 148→\n 149→ zoomOut(): void {\n 150→ this.state.update(s => ({\n 151→ ...s,\n 152→ zoomLevel: Math.max(s.zoomLevel - this.ZOOM_STEP, this.MIN_ZOOM)\n 153→ }));\n 154→ }\n 155→\n 156→ // Utility method to extract coordinates from mouse or touch events\n 157→ private getEventCoordinates(event: MouseEvent | TouchEvent): { clientX: number; clientY: number } {\n 158→ if (event instanceof MouseEvent) {\n 159→ return { clientX: event.clientX, clientY: event.clientY };\n 160→ } else {\n 161→ const touch = event.touches[0] || event.changedTouches[0];\n 162→ return { clientX: touch.clientX, clientY: touch.clientY };\n 163→ }\n 164→ }\n 165→\n 166→ // Playhead controls\n 167→ onRulerPointerDown(event: MouseEvent | TouchEvent): void {\n 168→ event.preventDefault();\n 169→ this.isDraggingFromRuler = true;\n 170→\n 171→ // Immediately update position on pointer down\n 172→ const target = event.currentTarget as HTMLElement;\n 173→ const rect = target.getBoundingClientRect();\n 174→ const coords = this.getEventCoordinates(event);\n 175→ // Calculate position within the ruler element\n 176→ // getBoundingClientRect() already accounts for scroll, so we don't add scrollLeft\n 177→ const x = coords.clientX - rect.left;\n 178→ const newPosition = x / this.pixelsPerMillisecond();\n 179→\n 180→ this.state.update(s => ({\n 181→ ...s,\n 182→ playheadPosition: Math.max(0, Math.min(newPosition, s.totalDuration))\n 183→ }));\n 184→ }\n 185→\n 186→ onPlayheadPointerDown(event: MouseEvent | TouchEvent): void {\n 187→ event.preventDefault();\n 188→ event.stopPropagation();\n 189→ this.isDraggingPlayhead = true;\n 190→ }\n 191→\n 192→\n 193→ // Media item drag and drop\n 194→ onMediaItemPointerDown(event: MouseEvent | TouchEvent, item: MediaItem, track: Track): void {\n 195→ const target = event.target as HTMLElement;\n 196→\n 197→ // Check if clicking/touching on resize handle\n 198→ if (target.classList.contains('resize-handle')) {\n 199→ this.resizingItem = {\n 200→ item,\n 201→ edge: target.classList.contains('resize-handle-left') ? 'left' : 'right'\n 202→ };\n 203→ event.preventDefault();\n 204→ return;\n 205→ }\n 206→\n 207→ const coords = this.getEventCoordinates(event);\n 208→ this.mouseDownPosition = { x: coords.clientX, y: coords.clientY };\n 209→\n 210→ const mediaItemElement = event.currentTarget as HTMLElement;\n 211→ const rect = mediaItemElement.getBoundingClientRect();\n 212→ const clickX = coords.clientX - rect.left;\n 213→\n 214→ // Convert pixel offset to time offset\n 215→ this.dragOffsetTime = clickX / this.pixelsPerMillisecond();\n 216→\n 217→ this.draggedItem = item;\n 218→ this.draggedItemOriginalTrackId = track.id;\n 219→ event.preventDefault();\n 220→ }\n 221→\n 222→ onTrackPointerDown(event: MouseEvent | TouchEvent): void {\n 223→ // Deselect when clicking/touching track background (not on media item)\n 224→ const target = event.target as HTMLElement;\n 225→ if (target.classList.contains('track')) {\n 226→ this.deselectMediaItem();\n 227→ }\n 228→ }\n 229→\n 230→ onTrackPointerMove(event: MouseEvent | TouchEvent, track: Track): void {\n 231→ if (this.resizingItem) {\n 232→ this.handleResize(event, track);\n 233→ return;\n 234→ }\n 235→ event.preventDefault();\n 236→ event.stopPropagation();\n 237→\n 238→ if (!this.draggedItem) return;\n 239→\n 240→ const coords = this.getEventCoordinates(event);\n 241→ const target = event.currentTarget as HTMLElement;\n 242→ const rect = target.getBoundingClientRect();\n 243→ const x = coords.clientX - rect.left;\n 244→ const requestedStartTime = Math.max(0, x / this.pixelsPerMillisecond() - this.dragOffsetTime);\n 245→\n 246→ this.state.update(s => {\n 247→ const updatedTracks = s.tracks.map(t => {\n 248→ if (t.id === track.id) {\n 249→ // Get all items except the dragged one for collision detection\n 250→ const otherItems = t.items.filter(i => i.id !== this.draggedItem!.id);\n 251→\n 252→ // Fix for issue #81: Find snap targets (playhead and items on all tracks)\n 253→ const snapTargets = this.dragDropService.findSnapTargets(\n 254→ this.draggedItem!.id,\n 255→ s.tracks,\n 256→ s.playheadPosition\n 257→ );\n 258→\n 259→ // Calculate valid position and duration considering collisions, gap fitting, and snapping\n 260→ const validPosition = this.dragDropService.getValidDragPosition(\n 261→ this.draggedItem!,\n 262→ requestedStartTime,\n 263→ otherItems,\n 264→ s.totalDuration,\n 265→ snapTargets\n 266→ );\n 267→\n 268→ // Check if item already exists in this track\n 269→ const itemExists = t.items.some(i => i.id === this.draggedItem!.id);\n 270→\n 271→ if (itemExists) {\n 272→ // Update position and duration in current track\n 273→ return {\n 274→ ...t,\n 275→ items: t.items.map(i =>\n 276→ i.id === this.draggedItem!.id\n 277→ ? {\n 278→ ...i,\n 279→ startTime: validPosition.startTime,\n 280→ duration: validPosition.duration,\n 281→ trackId: track.id\n 282→ }\n 283→ : i\n 284→ )\n 285→ };\n 286→ } else {\n 287→ // Add to new track with adjusted position and duration\n 288→ return {\n 289→ ...t,\n 290→ items: [\n 291→ ...otherItems,\n 292→ {\n 293→ ...this.draggedItem!,\n 294→ startTime: validPosition.startTime,\n 295→ duration: validPosition.duration,\n 296→ trackId: track.id\n 297→ }\n 298→ ]\n 299→ };\n 300→ }\n 301→ } else if (t.id === this.draggedItemOriginalTrackId && t.id !== track.id) {\n 302→ // Remove from original track only if moving to different track\n 303→ return {\n 304→ ...t,\n 305→ items: t.items.filter(i => i.id !== this.draggedItem!.id)\n 306→ };\n 307→ }\n 308→ return t;\n 309→ });\n 310→\n 311→ // Update the original track ID to current track for smooth dragging within same track\n 312→ this.draggedItemOriginalTrackId = track.id;\n 313→\n 314→ return { ...s, tracks: updatedTracks };\n 315→ });\n 316→ }\n 317→\n 318→ private handleResize(event: MouseEvent | TouchEvent, track: Track): void {\n 319→ if (!this.resizingItem) return;\n 320→\n 321→ const coords = this.getEventCoordinates(event);\n 322→ const target = event.currentTarget as HTMLElement;\n 323→ const rect = target.getBoundingClientRect();\n 324→ // Fix for issue #83: getBoundingClientRect() returns viewport-relative coordinates,\n 325→ // and coords.clientX is also viewport-relative, so we don't need to add scrollLeft\n 326→ const x = coords.clientX - rect.left;\n 327→ const timeAtCursor = x / this.pixelsPerMillisecond();\n 328→\n 329→ this.state.update(s => {\n 330→ // Fix for issue #87: Find snap targets for resize operations\n 331→ const snapTargets = this.dragDropService.findSnapTargets(\n 332→ this.resizingItem!.item.id,\n 333→ s.tracks,\n 334→ s.playheadPosition\n 335→ );\n 336→\n 337→ const updatedTracks = s.tracks.map(t => {\n 338→ if (t.id === track.id) {\n 339→ // Get resize bounds considering adjacent items\n 340→ const bounds = this.dragDropService.getResizeBounds(\n 341→ this.resizingItem!.item,\n 342→ t.items,\n 343→ this.resizingItem!.edge,\n 344→ s.totalDuration\n 345→ );\n 346→\n 347→ return {\n 348→ ...t,\n 349→ items: t.items.map(i => {\n 350→ if (i.id === this.resizingItem!.item.id) {\n 351→ if (this.resizingItem!.edge === 'left') {\n 352→ // Fix for issue #89: Handle mediaStartTime when resizing from left\n 353→ // Apply snapping to left edge (start time)\n 354→ let newStartTime = Math.max(\n 355→ bounds.minTime,\n 356→ Math.min(timeAtCursor, bounds.maxTime)\n 357→ );\n 358→\n 359→ // Apply snapping if within snap distance\n 360→ let minDistance = this.dragDropService.SNAP_DISTANCE_MS;\n 361→ for (const target of snapTargets) {\n 362→ const distance = Math.abs(newStartTime - target);\n 363→ if (distance < minDistance) {\n 364→ minDistance = distance;\n 365→ // Only snap if within bounds\n 366→ if (target >= bounds.minTime && target <= bounds.maxTime) {\n 367→ newStartTime = target;\n 368→ }\n 369→ }\n 370→ }\n 371→\n 372→ // Calculate how much the timeline position is changing\n 373→ const deltaTime = newStartTime - i.startTime;\n 374→ const newDuration = i.duration - deltaTime;\n 375→\n 376→ // Update media start time (trimming from source media)\n 377→ const curre***********tTime = i.mediaStartTime || 0;\n 378→ const newMediaStartTime = curre***********tTime + deltaTime;\n 379→\n 380→ // Check if we're trying to extend beyond the start of source media\n 381→ if (newMediaStartTime < 0) {\n 382→ // Can only extend left by curre***********tTime amount\n 383→ const maxExtension = currentMediaStartTime;\n 384→ const finalStartTime = i.startTime - maxExtension;\n 385→ const finalDuration = i.duration + maxExtension;\n 386→\n 387→ // Ensure we don't exceed maxDuration\n 388→ if (i.maxDuration && finalDuration > i.maxDuration) {\n 389→ return {\n 390→ ...i,\n 391→ startTime: finalStartTime + (finalDuration - i.maxDuration),\n 392→ duration: i.maxDuration,\n 393→ mediaStartTime: 0\n 394→ };\n 395→ }\n 396→\n 397→ return {\n 398→ ...i,\n 399→ startTime: finalStartTime,\n 400→ duration: finalDuration,\n 401→ mediaStartTime: 0\n 402→ };\n 403→ }\n 404→\n 405→ // Ensure media end doesn't exceed maxDuration\n 406→ if (i.maxDuration && newMediaStartTime + newDuration > i.maxDuration) {\n 407→ const maxAllowedDuration = i.maxDuration - newMediaStartTime;\n 408→ return {\n 409→ ...i,\n 410→ startTime: i.startTime + (i.duration - maxAllowedDuration),\n 411→ duration: maxAllowedDuration,\n 412→ mediaStartTime: newMediaStartTime\n 413→ };\n 414→ }\n 415→\n 416→ return {\n 417→ ...i,\n 418→ startTime: newStartTime,\n 419→ duration: newDuration,\n 420→ mediaStartTime: newMediaStartTime\n 421→ };\n 422→ } else {\n 423→ // Fix for issue #87: Apply snapping to right edge (end time)\n 424→ let newEndTime = Math.max(\n 425→ bounds.minTime,\n 426→ Math.min(timeAtCursor, bounds.maxTime)\n 427→ );\n 428→\n 429→ // Apply snapping if within snap distance\n 430→ let minDistance = this.dragDropService.SNAP_DISTANCE_MS;\n 431→ for (const target of snapTargets) {\n 432→ const distance = Math.abs(newEndTime - target);\n 433→ if (distance < minDistance) {\n 434→ minDistance = distance;\n 435→ // Only snap if within bounds\n 436→ if (target >= bounds.minTime && target <= bounds.maxTime) {\n 437→ newEndTime = target;\n 438→ }\n 439→ }\n 440→ }\n 441→\n 442→ const newDuration = newEndTime - i.startTime;\n 443→\n 444→ // Limit duration by maxDuration if specified\n 445→ const limitedDuration = i.maxDuration\n 446→ ? Math.min(newDuration, i.maxDuration)\n 447→ : newDuration;\n 448→\n 449→ return { ...i, duration: limitedDuration };\n 450→ }\n 451→ }\n 452→ return i;\n 453→ })\n 454→ };\n 455→ }\n 456→ return t;\n 457→ });\n 458→\n 459→ return { ...s, tracks: updatedTracks };\n 460→ });\n 461→ }\n 462→\n 463→ onPointerUp(event: MouseEvent | TouchEvent): void {\n 464→ // Detect if this was a click/tap (not a drag) on a media item\n 465→ if (this.draggedItem && this.mouseDownPosition) {\n 466→ const coords = this.getEventCoordinates(event);\n 467→ const dx = coords.clientX - this.mouseDownPosition.x;\n 468→ const dy = coords.clientY - this.mouseDownPosition.y;\n 469→ const distance = Math.sqrt(dx * dx + dy * dy);\n 470→\n 471→ // If pointer moved less than 5 pixels, consider it a click/tap\n 472→ if (distance < 5) {\n 473→ this.selectMediaItem(this.draggedItem.id);\n 474→ }\n 475→ }\n 476→\n 477→ this.draggedItem = null;\n 478→ this.draggedItemOriginalTrackId = null;\n 479→ this.dragOffsetTime = 0;\n 480→ this.isDraggingPlayhead = false;\n 481→ this.isDraggingFromRuler = false;\n 482→ this.resizingItem = null;\n 483→ this.mouseDownPosition = null;\n 484→ }\n 485→\n 486→ onDocumentPointerMove(event: MouseEvent | TouchEvent): void {\n 487→ if (this.isDraggingPlayhead || this.isDraggingFromRuler) {\n 488→ // Fix for issue #50: Use ViewChild reference to ensure we use the exact same element as onRulerPointerDown\n 489→ if (!this.timelineRuler) {\n 490→ return;\n 491→ }\n 492→\n 493→ const coords = this.getEventCoordinates(event);\n 494→ const rulerElement = this.timelineRuler.nativeElement;\n 495→ // Use the same calculation as onRulerPointerDown\n 496→ // getBoundingClientRect() already accounts for scroll, so we don't add scrollLeft\n 497→ const rect = rulerElement.getBoundingClientRect();\n 498→ const x = coords.clientX - rect.left;\n 499→ const newPosition = x / this.pixelsPerMillisecond();\n 500→\n 501→ this.state.update(s => ({\n 502→ ...s,\n 503→ playheadPosition: Math.max(0, Math.min(newPosition, s.totalDuration))\n 504→ }));\n 505→ }\n 506→\n 507→ // Fix for issue #96: Handle media item dragging and resizing at document level for touch events\n 508→ // This allows dragging between tracks on mobile devices\n 509→ if (event instanceof TouchEvent) {\n 510→ if (this.draggedItem) {\n 511→ // Find which track the touch is currently over\n 512→ const targetTrack = this.findTrackAtCoordinates(this.getEventCoordinates(event));\n 513→ if (targetTrack) {\n 514→ // Reuse existing drag logic\n 515→ this.onTrackPointerMove(event, targetTrack);\n 516→ }\n 517→ } else if (this.resizingItem) {\n 518→ // Find the track that contains the resizing item\n 519→ const targetTrack = this.findTrackContainingItem(this.resizingItem.item.id);\n 520→ if (targetTrack) {\n 521→ // Reuse existing resize logic\n 522→ this.handleResize(event, targetTrack);\n 523→ }\n 524→ }\n 525→ }\n 526→ }\n 527→\n 528→ // Helper method to find which track is at the given Y coordinate\n 529→ private findTrackAtCoordinates(coords: { clientX: number; clientY: number }): Track | null {\n 530→ const trackElements = document.querySelectorAll('.track');\n 531→ for (const trackElement of Array.from(trackElements)) {\n 532→ const rect = trackElement.getBoundingClientRect();\n 533→ if (coords.clientY >= rect.top && coords.clientY <= rect.bottom) {\n 534→ const trackIndex = Array.from(trackElements).indexOf(trackElement);\n 535→ const tracks = this.state().tracks;\n 536→ if (trackIndex >= 0 && trackIndex < tracks.length) {\n 537→ return tracks[trackIndex];\n 538→ }\n 539→ }\n 540→ }\n 541→ return null;\n 542→ }\n 543→\n 544→ // Helper method to find the track containing a specific item\n 545→ private findTrackContainingItem(itemId: string): Track | null {\n 546→ const currentState = this.state();\n 547→ for (const track of currentState.tracks) {\n 548→ if (track.items.some(item => item.id === itemId)) {\n 549→ return track;\n 550→ }\n 551→ }\n 552→ return null;\n 553→ }\n 554→\n 555→ // Helper methods\n 556→ getItemStyle(item: MediaItem) {\n 557→ return {\n 558→ left: `${item.startTime * this.pixelsPerMillisecond()}px`,\n 559→ width: `${item.duration * this.pixelsPerMillisecond()}px`\n 560→ };\n 561→ }\n 562→\n 563→ getMediaTypeClass(type: MediaType): string {\n 564→ return `media-${type}`;\n 565→ }\n 566→\n 567→ formatTime(milliseconds: number): string {\n 568→ const seconds = Math.floor(milliseconds / 1000);\n 569→ const minutes = Math.floor(seconds / 60);\n 570→ const remainingSeconds = seconds % 60;\n 571→ const cs = Math.floor((milliseconds % 1000) / 10);\n 572→ return `${minutes}:${remainingSeconds.toString().padStart(2, '0')}.${cs.toString().padStart(2, '0')}`;\n 573→ }\n 574→\n 575→ /**\n 576→ * Calculate appropriate time interval for markers based on zoom level\n 577→ * to prevent marker labels from overlapping\n 578→ */\n 579→ private getMarkerInterval(): number {\n 580→ // Minimum spacing between markers in pixels to prevent overlap\n 581→ // Enough space for \"0:00.000\" text (about 50-60px)\n 582→ const MIN_M***********NG_PX = 60;\n 583→\n 584→ // Calculate how much time represents MIN_M***********NG_PX at current zoom\n 585→ const pixelsPerMs = this.pixelsPerMillisecond();\n 586→ const minTimeSpacing = MIN_M***********NG_PX / pixelsPerMs;\n 587→\n 588→ // Define possible intervals (in ms): 100ms, 250ms, 500ms, 1s, 2s, 5s, 10s, 30s, 60s\n 589→ const intervals = [100, 250, 500, 1000, 2000, 5000, 10000, 30000, 60000];\n 590→\n 591→ // Find the smallest interval that's larger than or equal to minTimeSpacing\n 592→ for (const interval of intervals) {\n 593→ if (interval >= minTimeSpacing) {\n 594→ return interval;\n 595→ }\n 596→ }\n 597→\n 598→ // If even 60s is too small, use larger intervals\n 599→ return Math.ceil(minTimeSpacing / 60000) * 60000;\n 600→ }\n 601→\n 602→ getTimeMarkers(): { position: number; label: string }[] {\n 603→ const markers: { position: number; label: string }[] = [];\n 604→ const stepMs = this.getMarkerInterval(); // Dynamic interval based on zoom level\n 605→\n 606→ // Fix for issue #85: Do not show the last time mark at totalDuration\n 607→ // to prevent container expansion from the text label\n 608→ for (let time = 0; time < this.state().totalDuration; time += stepMs) {\n 609→ markers.push({\n 610→ position: time * this.pixelsPerMillisecond(),\n 611→ label: this.formatTime(time)\n 612→ });\n 613→ }\n 614→\n 615→ return markers;\n 616→ }\n 617→\n 618→ // Add placeholder media item\n 619→ addMediaItem(type: MediaType, trackId: string): void {\n 620→ const currentState = this.state();\n 621→ const track = currentState.tracks.find(t => t.id === trackId);\n 622→\n 623→ if (!track) return;\n 624→\n 625→ const playheadTime = currentState.playheadPosition;\n 626→ const totalDuration = currentState.totalDuration;\n 627→ const newItemDuration = type === MediaType.IMAGE ? 5000 : 3000;\n 628→\n 629→ // Determine the start time for the new item using the service\n 630→ const startTime = this.dragDropService.calculateNewItemStartTime(\n 631→ playheadTime,\n 632→ track.items,\n 633→ this.SNAP_PROXIMITY_MS\n 634→ );\n 635→\n 636→ // Fix for issue #48: Ensure new item doesn't exceed totalDuration\n 637→ const maxAllowedDuration = totalDuration - startTime;\n 638→ const finalDuration = Math.min(newItemDuration, maxAllowedDuration);\n 639→\n 640→ // Fix for issue #64: Verify that the new item doesn't overlap with any existing items\n 641→ const testItem: MediaItem = {\n 642→ id: 'temp',\n 643→ type,\n 644→ startTime,\n 645→ duration: finalDuration,\n 646→ trackId,\n 647→ name: '',\n 648→ isPlaceholder: true\n 649→ };\n 650→\n 651→ // Validate and adjust position if needed\n 652→ const validatedStartTime = this.dragDropService.validateItemPosition(testItem, track.items);\n 653→\n 654→ // Recalculate duration limit if position was adjusted\n 655→ const adjus****************ation = totalDuration - validatedStartTime;\n 656→ const adjustedDuration = Math.min(newItemDuration, adjustedMaxAllowedDuration);\n 657→\n 658→ // Create the final non-overlapping item\n 659→ const newItem: MediaItem = {\n 660→ id: `item-${Date.now()}`,\n 661→ type,\n 662→ startTime: validatedStartTime,\n 663→ duration: adjustedDuration,\n 664→ trackId,\n 665→ name: `${type} placeholder`,\n 666→ isPlaceholder: true\n 667→ };\n 668→\n 669→ // Set maxDuration for audio and video placeholders\n 670→ if (type === MediaType.VIDEO) {\n 671→ newItem.maxDuration = Math.min(10000, adjustedMaxAllowedDuration); // 10 seconds default for video\n 672→ } else if (type === MediaType.AUDIO) {\n 673→ newItem.maxDuration = Math.min(15000, adjustedMaxAllowedDuration); // 15 seconds default for audio\n 674→ }\n 675→\n 676→ this.state.update(s => ({\n 677→ ...s,\n 678→ tracks: s.tracks.map(t =>\n 679→ t.id === trackId\n 680→ ? { ...t, items: [...t.items, newItem] }\n 681→ : t\n 682→ )\n 683→ }));\n 684→ }\n 685→\n 686→ removeMediaItem(itemId: string, trackId: string): void {\n 687→ this.state.update(s => ({\n 688→ ...s,\n 689→ tracks: s.tracks.map(t =>\n 690→ t.id === trackId\n 691→ ? { ...t, items: t.items.filter(i => i.id !== itemId) }\n 692→ : t\n 693→ ),\n 694→ // Deselect if removing selected item\n 695→ selectedItemId: s.selectedItemId === itemId ? null : s.selectedItemId\n 696→ }));\n 697→ }\n 698→\n 699→ // Media selection\n 700→ selectMediaItem(itemId: string): void {\n 701→ this.state.update(s => ({\n 702→ ...s,\n 703→ selectedItemId: itemId\n 704→ }));\n 705→ }\n 706→\n 707→ deselectMediaItem(): void {\n 708→ this.state.update(s => ({\n 709→ ...s,\n 710→ selectedItemId: null\n 711→ }));\n 712→ }\n 713→\n 714→ isItemSelected(itemId: string): boolean {\n 715→ return this.state().selectedItemId === itemId;\n 716→ }\n 717→\n 718→ readonly MediaType = MediaType;\n 719→\n 720→ // Video preview controls\n 721→ togglePlayback(): void {\n 722→ this.isPlaying.update(playing => !playing);\n 723→ }\n 724→\n 725→ skipBackward(): void {\n 726→ this.state.update(s => ({\n 727→ ...s,\n 728→ playheadPosition: Math.max(0, s.playheadPosition - 5000)\n 729→ }));\n 730→ }\n 731→\n 732→ skipForward(): void {\n 733→ this.state.update(s => ({\n 734→ ...s,\n 735→ playheadPosition: Math.min(s.totalDuration, s.playheadPosition + 5000)\n 736→ }));\n 737→ }\n 738→\n 739→ // Duration editor methods\n 740→ openDurationEditor(): void {\n 741→ this.editedDuration = this.state().totalDuration / 1000;\n 742→ this.showDurationEditor.set(true);\n 743→ }\n 744→\n 745→ closeDurationEditor(): void {\n 746→ this.showDurationEditor.set(false);\n 747→ }\n 748→\n 749→ onDurationInputChange(event: Event): void {\n 750→ const input = event.target as HTMLInputElement;\n 751→ const value = parseFloat(input.value);\n 752→ if (!isNaN(value) && value > 0) {\n 753→ this.editedDuration = value;\n 754→ }\n 755→ }\n 756→\n 757→ saveDuration(): void {\n 758→ const newDurationMs = Math.max(1000, this.editedDuration * 1000); // At least 1 second\n 759→ this.state.update(s => ({\n 760→ ...s,\n 761→ totalDuration: newDurationMs,\n 762→ // Ensure playhead doesn't exceed new duration\n 763→ playheadPosition: Math.min(s.playheadPosition, newDurationMs)\n 764→ }));\n 765→ this.closeDurationEditor();\n 766→ }\n 767→\n 768→ // Media library methods\n 769→ openMediaLibrary(trackId: string): void {\n 770→ this.mediaLibraryTargetTrackId = trackId;\n 771→ this.showMediaLibrary.set(true);\n 772→ }\n 773→\n 774→ closeMediaLibrary(): void {\n 775→ this.showMediaLibrary.set(false);\n 776→ this.mediaLibraryTargetTrackId = null;\n 777→ }\n 778→\n 779→ onMediaSelected(media: MediaLibraryItem): void {\n 780→ if (!this.mediaLibraryTargetTrackId) return;\n 781→\n 782→ const currentState = this.state();\n 783→ const track = currentState.tracks.find(t => t.id === this.mediaLibraryTargetTrackId);\n 784→\n 785→ if (!track) return;\n 786→\n 787→ const playheadTime = currentState.playheadPosition;\n 788→ const totalDuration = currentState.totalDuration;\n 789→\n 790→ // Determine the start time for the new item using the service\n 791→ const startTime = this.dragDropService.calculateNewItemStartTime(\n 792→ playheadTime,\n 793→ track.items,\n 794→ this.SNAP_PROXIMITY_MS\n 795→ );\n 796→\n 797→ // Ensure item doesn't exceed totalDuration\n 798→ const maxAllowedDuration = totalDuration - startTime;\n 799→ const finalDuration = Math.min(media.duration, maxAllowedDuration);\n 800→\n 801→ // Verify that the new item doesn't overlap with any existing items\n 802→ const testItem: MediaItem = {\n 803→ id: 'temp',\n 804→ type: media.type,\n 805→ startTime,\n 806→ duration: finalDuration,\n 807→ trackId: this.mediaLibraryTargetTrackId,\n 808→ name: '',\n 809→ isPlaceholder: false\n 810→ };\n 811→\n 812→ // Validate and adjust position if needed\n 813→ const validatedStartTime = this.dragDropService.validateItemPosition(testItem, track.items);\n 814→\n 815→ // Recalculate duration limit if position was adjusted\n 816→ const adjus****************ation = totalDuration - validatedStartTime;\n 817→ const adjustedDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n 818→\n 819→ // Create the final non-overlapping item\n 820→ const newItem: MediaItem = {\n 821→ id: `item-${Date.now()}`,\n 822→ type: media.type,\n 823→ startTime: validatedStartTime,\n 824→ duration: adjustedDuration,\n 825→ trackId: this.mediaLibraryTargetTrackId,\n 826→ name: media.name,\n 827→ isPlaceholder: false\n 828→ };\n 829→\n 830→ // Set maxDuration for audio and video\n 831→ if (media.type === MediaType.VIDEO) {\n 832→ newItem.maxDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n 833→ } else if (media.type === MediaType.AUDIO) {\n 834→ newItem.maxDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n 835→ }\n 836→\n 837→ this.state.update(s => ({\n 838→ ...s,\n 839→ tracks: s.tracks.map(t =>\n 840→ t.id === this.mediaLibraryTargetTrackId\n 841→ ? { ...t, items: [...t.items, newItem] }\n 842→ : t\n 843→ )\n 844→ }));\n 845→\n 846→ // Close the media library after selection\n 847→ this.closeMediaLibrary();\n 848→ }\n 849→\n 850→ /**\n 851→ * Trim (split) the selected media item at the playhead position.\n 852→ * Creates two separate items from the original media.\n 853→ */\n 854→ trimSelectedMedia(): void {\n 855→ const currentState = this.state();\n 856→ const selectedItemId = currentState.selectedItemId;\n 857→\n 858→ if (!selectedItemId) {\n 859→ return;\n 860→ }\n 861→\n 862→ // Find the selected item and its track\n 863→ let selectedItem: MediaItem | null = null;\n 864→ let selectedTrack: Track | null = null;\n 865→\n 866→ for (const track of currentState.tracks) {\n 867→ const item = track.items.find(i => i.id === selectedItemId);\n 868→ if (item) {\n 869→ selectedItem = item;\n 870→ selectedTrack = track;\n 871→ break;\n 872→ }\n 873→ }\n 874→\n 875→ if (!selectedItem || !selectedTrack) {\n 876→ return;\n 877→ }\n 878→\n 879→ const playheadTime = currentState.playheadPosition;\n 880→ const itemStart = selectedItem.startTime;\n 881→ const itemEnd = itemStart + selectedItem.duration;\n 882→\n 883→ // Check if playhead is within the selected media item\n 884→ if (playheadTime <= itemStart || playheadTime >= itemEnd) {\n 885→ // Playhead is not within the selected media - show notification\n 886→ this.notificationsComponent?.showNotification(\n 887→ 'Position the playhead within the selected media to trim it.',\n 888→ 'warning'\n 889→ );\n 890→ return;\n 891→ }\n 892→\n 893→ // Ensure both parts will have at least MIN_ITEM_DURATION\n 894→ const firstPartDuration = playheadTime - itemStart;\n 895→ const secondPartDuration = itemEnd - playheadTime;\n 896→\n 897→ if (firstPartDuration < this.MIN_ITEM_DURATION || secondPartDuration < this.MIN_ITEM_DURATION) {\n 898→ this.notificationsComponent?.showNotification(\n 899→ 'Cannot trim: resulting parts would be too short.',\n 900→ 'warning'\n 901→ );\n 902→ return;\n 903→ }\n 904→\n 905→ // Calculate mediaStartTime adjustments\n 906→ const origi************tTime = selectedItem.mediaStartTime || 0;\n 907→ const secon**************tTime = origi************tTime + firstPartDuration;\n 908→\n 909→ // Create two new items from the original\n 910→ const firstPart: MediaItem = {\n 911→ ...selectedItem,\n 912→ id: `item-${Date.now()}-1`,\n 913→ duration: firstPartDuration\n 914→ // mediaStartTime stays the same for first part\n 915→ };\n 916→\n 917→ const secondPart: MediaItem = {\n 918→ ...selectedItem,\n 919→ id: `item-${Date.now()}-2`,\n 920→ startTime: playheadTime,\n 921→ duration: secondPartDuration,\n 922→ mediaStartTime: secondPartMediaStartTime\n 923→ };\n 924→\n 925→ // Update the state: remove original, add two new parts\n 926→ this.state.update(s => ({\n 927→ ...s,\n 928→ tracks: s.tracks.map(t => {\n 929→ if (t.id === selectedTrack!.id) {\n 930→ return {\n 931→ ...t,\n 932→ items: [\n 933→ ...t.items.filter(i => i.id !== selectedItemId),\n 934→ firstPart,\n 935→ secondPart\n 936→ ]\n 937→ };\n 938→ }\n 939→ return t;\n 940→ }),\n 941→ // Deselect after trimming\n 942→ selectedItemId: null\n 943→ }));\n 944→\n 945→ this.notificationsComponent?.showNotification(\n 946→ 'Media trimmed successfully.',\n 947→ 'success'\n 948→ );\n 949→ }\n 950→\n 951→ /**\n 952→ * Copy the selected media item to the clipboard.\n 953→ * Stores a copy of the item and the track it was copied from.\n 954→ */\n 955→ copySelectedMedia(): void {\n 956→ const currentState = this.state();\n 957→ const selectedItemId = currentState.selectedItemId;\n 958→\n 959→ if (!selectedItemId) {\n 960→ return;\n 961→ }\n 962→\n 963→ // Find the selected item and its track\n 964→ let selectedItem: MediaItem | null = null;\n 965→ let selectedTrackId: string | null = null;\n 966→\n 967→ for (const track of currentState.tracks) {\n 968→ const item = track.items.find(i => i.id === selectedItemId);\n 969→ if (item) {\n 970→ selectedItem = item;\n 971→ selectedTrackId = track.id;\n 972→ break;\n 973→ }\n 974→ }\n 975→\n 976→ if (!selectedItem || !selectedTrackId) {\n 977→ return;\n 978→ }\n 979→\n 980→ // Store a copy of the item in clipboard\n 981→ this.clipboardItem.set({ ...selectedItem });\n 982→ this.clipboardSourceTrackId.set(selectedTrackId);\n 983→\n 984→ this.notificationsComponent?.showNotification(\n 985→ 'Media copied to clipboard.',\n 986→ 'success'\n 987→ );\n 988→ }\n 989→\n 990→ /**\n 991→ * Paste the clipboard media item at the playhead position.\n 992→ * Pastes on the same track where the item was copied from.\n 993→ * If there's no space at playhead position, finds the next available slot.\n 994→ */\n 995→ pasteMedia(): void {\n 996→ const copiedItem = this.clipboardItem();\n 997→ const sourceTrackId = this.clipboardSourceTrackId();\n 998→\n 999→ if (!copiedItem || !sourceTrackId) {\n 1000→ return;\n 1001→ }\n 1002→\n 1003→ const currentState = this.state();\n 1004→ const playheadTime = currentState.playheadPosition;\n 1005→ const totalDuration = currentState.totalDuration;\n 1006→\n 1007→ // Find the source track\n 1008→ let targetTrack = currentState.tracks.find(t => t.id === sourceTrackId);\n 1009→\n 1010→ // If source track no longer exists, use the first track\n 1011→ if (!targetTrack) {\n 1012→ targetTrack = currentState.tracks[0];\n 1013→ if (!targetTrack) {\n 1014→ this.notificationsComponent?.showNotification(\n 1015→ 'No tracks available to paste media.',\n 1016→ 'error'\n 1017→ );\n 1018→ return;\n 1019→ }\n 1020→ }\n 1021→\n 1022→ const itemDuration = copiedItem.duration;\n 1023→\n 1024→ // Try to find a valid position starting from playhead\n 1025→ const pastePosition = this.findPastePosition(\n 1026→ playheadTime,\n 1027→ itemDuration,\n 1028→ targetTrack.items,\n 1029→ totalDuration\n 1030→ );\n 1031→\n 1032→ if (pastePosition === null) {\n 1033→ this.notificationsComponent?.showNotification(\n 1034→ 'No space available to paste media on this track.',\n 1035→ 'warning'\n 1036→ );\n 1037→ return;\n 1038→ }\n 1039→\n 1040→ // Create a new item with a new ID\n 1041→ const newItem: MediaItem = {\n 1042→ ...copiedItem,\n 1043→ id: `item-${Date.now()}`,\n 1044→ startTime: pastePosition,\n 1045→ trackId: targetTrack.id\n 1046→ };\n 1047→\n 1048→ // Add the new item to the track\n 1049→ this.state.update(s => ({\n 1050→ ...s,\n 1051→ tracks: s.tracks.map(t =>\n 1052→ t.id === targetTrack!.id\n 1053→ ? { ...t, items: [...t.items, newItem] }\n 1054→ : t\n 1055→ )\n 1056→ }));\n 1057→\n 1058→ this.notificationsComponent?.showNotification(\n 1059→ 'Media pasted successfully.',\n 1060→ 'success'\n 1061→ );\n 1062→ }\n 1063→\n 1064→ /**\n 1065→ * Find a valid position to paste media item.\n 1066→ * First tries at the playhead position, then finds the next available gap.\n 1067→ */\n 1068→ private findPastePosition(\n 1069→ preferredPosition: number,\n 1070→ duration: number,\n 1071→ existingItems: MediaItem[],\n 1072→ totalDuration: number\n 1073→ ): number | null {\n 1074→ // Check if we can fit at the preferred position (playhead)\n 1075→ if (this.canFitAtPosition(preferredPosition, duration, existingItems, totalDuration)) {\n 1076→ return preferredPosition;\n 1077→ }\n 1078→\n 1079→ // Sort existing items by start time\n 1080→ const sortedItems = [...existingItems].sort((a, b) => a.startTime - b.startTime);\n 1081→\n 1082→ // Find all gaps on the track and try to place the item\n 1083→ const gaps = this.dragDropService.findAllGaps(sortedItems);\n 1084→\n 1085→ // First, try to find a gap that starts at or after the playhead\n 1086→ for (const gap of gaps) {\n 1087→ // Calculate actual gap size (considering totalDuration for infinite gaps)\n 1088→ const effectiveGapEnd = gap.gapEnd === Infinity ? totalDuration : gap.gapEnd;\n 1089→ const gapSize = effectiveGapEnd - gap.gapStart;\n 1090→\n 1091→ if (gap.gapStart >= preferredPosition && gapSize >= duration) {\n 1092→ return gap.gapStart;\n 1093→ }\n 1094→ }\n 1095→\n 1096→ // If no gap after playhead, try any gap that can fit the item\n 1097→ for (const gap of gaps) {\n 1098→ // Calculate actual gap size (considering totalDuration for infinite gaps)\n 1099→ const effectiveGapEnd = gap.gapEnd === Infinity ? totalDuration : gap.gapEnd;\n 1100→ const gapSize = effectiveGapEnd - gap.gapStart;\n 1101→\n 1102→ if (gapSize >= duration) {\n 1103→ return gap.gapStart;\n 1104→ }\n 1105→ }\n 1106→\n 1107→ // No suitable position found\n 1108→ return null;\n 1109→ }\n 1110→\n 1111→ /**\n 1112→ * Check if an item can fit at a specific position without overlapping.\n 1113→ */\n 1114→ private canFitAtPosition(\n 1115→ position: number,\n 1116→ duration: number,\n 1117→ existingItems: MediaItem[],\n 1118→ totalDuration: number\n 1119→ ): boolean {\n 1120→ // Check bounds\n 1121→ if (position < 0 || position + duration > totalDuration) {\n 1122→ return false;\n 1123→ }\n 1124→\n 1125→ // Check for overlaps with existing items\n 1126→ const endPosition = position + duration;\n 1127→ for (const item of existingItems) {\n 1128→ const itemEnd = item.startTime + item.duration;\n 1129→ // Check if there's an overlap\n 1130→ if (position < itemEnd && endPosition > item.startTime) {\n 1131→ return false;\n 1132→ }\n 1133→ }\n 1134→\n 1135→ return true;\n 1136→ }\n 1137→}\n 1138→\n\n<system-reminder>\nWhenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.\n</system-reminder>\n"}]},"parent_tool_use_id":null,"session_id":"d5b1bf94-1397-44f7-9390-3c57ba19d0b0","uuid":"d77c1a71-a8ac-4aa7-9208-f0e0be0bba2a","tool_use_result":{"type":"text","file":{"filePath":"/tmp/gh-issue-solver-1764930855025/video-timeline/src/app/components/timeline/timeline.component.ts","content":"import { Component, signal, computed, ViewChild, ElementRef } from '@angular/core';\nimport { CommonModule } from '@angular/common';\nimport { MediaType, MediaItem, Track, TimelineState } from '../../models/timeline.models';\nimport { MediaLibraryComponent, MediaLibraryItem } from '../media-library/media-library.component';\nimport { Media***********onent } from '../media-toolbar/media-toolbar.component';\nimport { Notif************onent } from '../notifications/notifications.component';\nimport { Timel*************rvice } from '../../services/timeline-drag-drop.service';\n\n@Component({\n selector: 'app-timeline',\n standalone: true,\n imports: [CommonModule, MediaLibraryComponent, MediaToolbarComponent, NotificationsComponent],\n templateUrl: './timeline.component.html',\n styleUrl: './timeline.component.css'\n})\nexport class TimelineComponent {\n // Zoom levels: pixels per second\n private readonly MIN_ZOOM = 10;\n private readonly MAX_ZOOM = 200;\n private readonly ZOOM_STEP = 20;\n readonly TRACK_HEADER_WIDTH = 150; // Width of track header in pixels\n private readonly SNAP_PROXIMITY_MS = 500; // Snap to item if playhead is within 500ms\n private readonly MIN_ITEM_DURATION = 100; // Minimum item duration in milliseconds\n\n // View references\n @ViewChild('timelineRuler') timelineRuler?: ElementRef<HTMLElement>;\n @ViewChild('notifications') notificationsComponent?: NotificationsComponent;\n\n // Timeline state\n readonly state = signal<TimelineState>({\n tracks: [\n { id: '1', name: 'Track 1', order: 0, items: [] },\n { id: '2', name: 'Track 2', order: 1, items: [] }\n ],\n playheadPosition: 0,\n zoomLevel: 50, // pixels per second\n totalDuration: 120000, // 120 seconds in milliseconds\n selectedItemId: null\n });\n\n // Computed values\n readonly pixel**********econd = computed(() => {\n return this.state().zoomLevel / 1000;\n });\n\n readonly timelineWidth = computed(() => {\n const state = this.state();\n // Calculate the maximum end time across all tracks\n let maxEndTime = state.totalDuration;\n\n for (const track of state.tracks) {\n for (const item of track.items) {\n const itemEndTime = item.startTime + item.duration;\n if (itemEndTime > maxEndTime) {\n maxEndTime = itemEndTime;\n }\n }\n }\n\n return maxEndTime * this.pixelsPerMillisecond();\n });\n\n readonly timelineLineHeight = computed(() => {\n const state = this.state();\n return state.tracks.length * 60 + 32;\n });\n\n readonly playheadPosition = computed(() => {\n return this.state().playheadPosition * this.pixelsPerMillisecond();\n });\n\n readonly playh************ition = computed(() => {\n return this.playheadPosition() + this.TRACK_HEADER_WIDTH;\n });\n\n // Computed: whether a media item is currently selected\n readonly hasSelectedItem = computed(() => {\n return this.state().selectedItemId !== null;\n });\n\n // Dragging state\n private draggedItem: MediaItem | null = null;\n private draggedItemOriginalTrackId: string | null = null;\n private dragOffsetTime: number = 0; // Offset in milliseconds from item start to cursor position\n private isDraggingPlayhead = false;\n private isDraggingFromRuler = false;\n private resizingItem: { item: MediaItem; edge: 'left' | 'right' } | null = null;\n private mouseDownPosition: { x: number; y: number } | null = null; // Track mouse down position for click detection\n\n // Video preview state\n readonly isPlaying = signal<boolean>(false);\n\n // Duration editor state\n readonly showDurationEditor = signal<boolean>(false);\n private editedDuration: number = 120; // Duration in seconds\n\n // Media library state\n readonly showMediaLibrary = signal<boolean>(false);\n private mediaLibraryTargetTrackId: string | null = null;\n\n // Clipboard state for copy/paste functionality\n private readonly clipboardItem = signal<MediaItem | null>(null);\n private readonly clipb************ackId = signal<string | null>(null);\n\n // Computed: whether a media item is in clipboard\n readonly hasClipboardItem = computed(() => {\n return this.clipboardItem() !== null;\n });\n\n constructor(private dragDropService: TimelineDragDropService) {\n }\n\n // Track management\n addTrack(): void {\n const currentState = this.state();\n const newTrack: Track = {\n id: `track-${Date.now()}`,\n name: `Track ${currentState.tracks.length + 1}`,\n order: currentState.tracks.length,\n items: []\n };\n\n this.state.update(s => ({\n ...s,\n tracks: [...s.tracks, newTrack]\n }));\n }\n\n removeTrack(trackId: string): void {\n const currentState = this.state();\n if (currentState.tracks.length <= 1) {\n return; // Keep at least one track\n }\n\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.filter(t => t.id !== trackId)\n }));\n }\n\n // Zoom controls\n zoomIn(): void {\n this.state.update(s => ({\n ...s,\n zoomLevel: Math.min(s.zoomLevel + this.ZOOM_STEP, this.MAX_ZOOM)\n }));\n }\n\n zoomOut(): void {\n this.state.update(s => ({\n ...s,\n zoomLevel: Math.max(s.zoomLevel - this.ZOOM_STEP, this.MIN_ZOOM)\n }));\n }\n\n // Utility method to extract coordinates from mouse or touch events\n private getEventCoordinates(event: MouseEvent | TouchEvent): { clientX: number; clientY: number } {\n if (event instanceof MouseEvent) {\n return { clientX: event.clientX, clientY: event.clientY };\n } else {\n const touch = event.touches[0] || event.changedTouches[0];\n return { clientX: touch.clientX, clientY: touch.clientY };\n }\n }\n\n // Playhead controls\n onRulerPointerDown(event: MouseEvent | TouchEvent): void {\n event.preventDefault();\n this.isDraggingFromRuler = true;\n\n // Immediately update position on pointer down\n const target = event.currentTarget as HTMLElement;\n const rect = target.getBoundingClientRect();\n const coords = this.getEventCoordinates(event);\n // Calculate position within the ruler element\n // getBoundingClientRect() already accounts for scroll, so we don't add scrollLeft\n const x = coords.clientX - rect.left;\n const newPosition = x / this.pixelsPerMillisecond();\n\n this.state.update(s => ({\n ...s,\n playheadPosition: Math.max(0, Math.min(newPosition, s.totalDuration))\n }));\n }\n\n onPlayheadPointerDown(event: MouseEvent | TouchEvent): void {\n event.preventDefault();\n event.stopPropagation();\n this.isDraggingPlayhead = true;\n }\n\n\n // Media item drag and drop\n onMediaItemPointerDown(event: MouseEvent | TouchEvent, item: MediaItem, track: Track): void {\n const target = event.target as HTMLElement;\n\n // Check if clicking/touching on resize handle\n if (target.classList.contains('resize-handle')) {\n this.resizingItem = {\n item,\n edge: target.classList.contains('resize-handle-left') ? 'left' : 'right'\n };\n event.preventDefault();\n return;\n }\n\n const coords = this.getEventCoordinates(event);\n this.mouseDownPosition = { x: coords.clientX, y: coords.clientY };\n\n const mediaItemElement = event.currentTarget as HTMLElement;\n const rect = mediaItemElement.getBoundingClientRect();\n const clickX = coords.clientX - rect.left;\n\n // Convert pixel offset to time offset\n this.dragOffsetTime = clickX / this.pixelsPerMillisecond();\n\n this.draggedItem = item;\n this.draggedItemOriginalTrackId = track.id;\n event.preventDefault();\n }\n\n onTrackPointerDown(event: MouseEvent | TouchEvent): void {\n // Deselect when clicking/touching track background (not on media item)\n const target = event.target as HTMLElement;\n if (target.classList.contains('track')) {\n this.deselectMediaItem();\n }\n }\n\n onTrackPointerMove(event: MouseEvent | TouchEvent, track: Track): void {\n if (this.resizingItem) {\n this.handleResize(event, track);\n return;\n }\n event.preventDefault();\n event.stopPropagation();\n\n if (!this.draggedItem) return;\n\n const coords = this.getEventCoordinates(event);\n const target = event.currentTarget as HTMLElement;\n const rect = target.getBoundingClientRect();\n const x = coords.clientX - rect.left;\n const requestedStartTime = Math.max(0, x / this.pixelsPerMillisecond() - this.dragOffsetTime);\n\n this.state.update(s => {\n const updatedTracks = s.tracks.map(t => {\n if (t.id === track.id) {\n // Get all items except the dragged one for collision detection\n const otherItems = t.items.filter(i => i.id !== this.draggedItem!.id);\n\n // Fix for issue #81: Find snap targets (playhead and items on all tracks)\n const snapTargets = this.dragDropService.findSnapTargets(\n this.draggedItem!.id,\n s.tracks,\n s.playheadPosition\n );\n\n // Calculate valid position and duration considering collisions, gap fitting, and snapping\n const validPosition = this.dragDropService.getValidDragPosition(\n this.draggedItem!,\n requestedStartTime,\n otherItems,\n s.totalDuration,\n snapTargets\n );\n\n // Check if item already exists in this track\n const itemExists = t.items.some(i => i.id === this.draggedItem!.id);\n\n if (itemExists) {\n // Update position and duration in current track\n return {\n ...t,\n items: t.items.map(i =>\n i.id === this.draggedItem!.id\n ? {\n ...i,\n startTime: validPosition.startTime,\n duration: validPosition.duration,\n trackId: track.id\n }\n : i\n )\n };\n } else {\n // Add to new track with adjusted position and duration\n return {\n ...t,\n items: [\n ...otherItems,\n {\n ...this.draggedItem!,\n startTime: validPosition.startTime,\n duration: validPosition.duration,\n trackId: track.id\n }\n ]\n };\n }\n } else if (t.id === this.draggedItemOriginalTrackId && t.id !== track.id) {\n // Remove from original track only if moving to different track\n return {\n ...t,\n items: t.items.filter(i => i.id !== this.draggedItem!.id)\n };\n }\n return t;\n });\n\n // Update the original track ID to current track for smooth dragging within same track\n this.draggedItemOriginalTrackId = track.id;\n\n return { ...s, tracks: updatedTracks };\n });\n }\n\n private handleResize(event: MouseEvent | TouchEvent, track: Track): void {\n if (!this.resizingItem) return;\n\n const coords = this.getEventCoordinates(event);\n const target = event.currentTarget as HTMLElement;\n const rect = target.getBoundingClientRect();\n // Fix for issue #83: getBoundingClientRect() returns viewport-relative coordinates,\n // and coords.clientX is also viewport-relative, so we don't need to add scrollLeft\n const x = coords.clientX - rect.left;\n const timeAtCursor = x / this.pixelsPerMillisecond();\n\n this.state.update(s => {\n // Fix for issue #87: Find snap targets for resize operations\n const snapTargets = this.dragDropService.findSnapTargets(\n this.resizingItem!.item.id,\n s.tracks,\n s.playheadPosition\n );\n\n const updatedTracks = s.tracks.map(t => {\n if (t.id === track.id) {\n // Get resize bounds considering adjacent items\n const bounds = this.dragDropService.getResizeBounds(\n this.resizingItem!.item,\n t.items,\n this.resizingItem!.edge,\n s.totalDuration\n );\n\n return {\n ...t,\n items: t.items.map(i => {\n if (i.id === this.resizingItem!.item.id) {\n if (this.resizingItem!.edge === 'left') {\n // Fix for issue #89: Handle mediaStartTime when resizing from left\n // Apply snapping to left edge (start time)\n let newStartTime = Math.max(\n bounds.minTime,\n Math.min(timeAtCursor, bounds.maxTime)\n );\n\n // Apply snapping if within snap distance\n let minDistance = this.dragDropService.SNAP_DISTANCE_MS;\n for (const target of snapTargets) {\n const distance = Math.abs(newStartTime - target);\n if (distance < minDistance) {\n minDistance = distance;\n // Only snap if within bounds\n if (target >= bounds.minTime && target <= bounds.maxTime) {\n newStartTime = target;\n }\n }\n }\n\n // Calculate how much the timeline position is changing\n const deltaTime = newStartTime - i.startTime;\n const newDuration = i.duration - deltaTime;\n\n // Update media start time (trimming from source media)\n const curre***********tTime = i.mediaStartTime || 0;\n const newMediaStartTime = curre***********tTime + deltaTime;\n\n // Check if we're trying to extend beyond the start of source media\n if (newMediaStartTime < 0) {\n // Can only extend left by curre***********tTime amount\n const maxExtension = currentMediaStartTime;\n const finalStartTime = i.startTime - maxExtension;\n const finalDuration = i.duration + maxExtension;\n\n // Ensure we don't exceed maxDuration\n if (i.maxDuration && finalDuration > i.maxDuration) {\n return {\n ...i,\n startTime: finalStartTime + (finalDuration - i.maxDuration),\n duration: i.maxDuration,\n mediaStartTime: 0\n };\n }\n\n return {\n ...i,\n startTime: finalStartTime,\n duration: finalDuration,\n mediaStartTime: 0\n };\n }\n\n // Ensure media end doesn't exceed maxDuration\n if (i.maxDuration && newMediaStartTime + newDuration > i.maxDuration) {\n const maxAllowedDuration = i.maxDuration - newMediaStartTime;\n return {\n ...i,\n startTime: i.startTime + (i.duration - maxAllowedDuration),\n duration: maxAllowedDuration,\n mediaStartTime: newMediaStartTime\n };\n }\n\n return {\n ...i,\n startTime: newStartTime,\n duration: newDuration,\n mediaStartTime: newMediaStartTime\n };\n } else {\n // Fix for issue #87: Apply snapping to right edge (end time)\n let newEndTime = Math.max(\n bounds.minTime,\n Math.min(timeAtCursor, bounds.maxTime)\n );\n\n // Apply snapping if within snap distance\n let minDistance = this.dragDropService.SNAP_DISTAN | |
| [2025-12-05T10:38:17.751Z] [INFO] CE_MS;\n for (const target of snapTargets) {\n const distance = Math.abs(newEndTime - target);\n if (distance < minDistance) {\n minDistance = distance;\n // Only snap if within bounds\n if (target >= bounds.minTime && target <= bounds.maxTime) {\n newEndTime = target;\n }\n }\n }\n\n const newDuration = newEndTime - i.startTime;\n\n // Limit duration by maxDuration if specified\n const limitedDuration = i.maxDuration\n ? Math.min(newDuration, i.maxDuration)\n : newDuration;\n\n return { ...i, duration: limitedDuration };\n }\n }\n return i;\n })\n };\n }\n return t;\n });\n\n return { ...s, tracks: updatedTracks };\n });\n }\n\n onPointerUp(event: MouseEvent | TouchEvent): void {\n // Detect if this was a click/tap (not a drag) on a media item\n if (this.draggedItem && this.mouseDownPosition) {\n const coords = this.getEventCoordinates(event);\n const dx = coords.clientX - this.mouseDownPosition.x;\n const dy = coords.clientY - this.mouseDownPosition.y;\n const distance = Math.sqrt(dx * dx + dy * dy);\n\n // If pointer moved less than 5 pixels, consider it a click/tap\n if (distance < 5) {\n this.selectMediaItem(this.draggedItem.id);\n }\n }\n\n this.draggedItem = null;\n this.draggedItemOriginalTrackId = null;\n this.dragOffsetTime = 0;\n this.isDraggingPlayhead = false;\n this.isDraggingFromRuler = false;\n this.resizingItem = null;\n this.mouseDownPosition = null;\n }\n\n onDocumentPointerMove(event: MouseEvent | TouchEvent): void {\n if (this.isDraggingPlayhead || this.isDraggingFromRuler) {\n // Fix for issue #50: Use ViewChild reference to ensure we use the exact same element as onRulerPointerDown\n if (!this.timelineRuler) {\n return;\n }\n\n const coords = this.getEventCoordinates(event);\n const rulerElement = this.timelineRuler.nativeElement;\n // Use the same calculation as onRulerPointerDown\n // getBoundingClientRect() already accounts for scroll, so we don't add scrollLeft\n const rect = rulerElement.getBoundingClientRect();\n const x = coords.clientX - rect.left;\n const newPosition = x / this.pixelsPerMillisecond();\n\n this.state.update(s => ({\n ...s,\n playheadPosition: Math.max(0, Math.min(newPosition, s.totalDuration))\n }));\n }\n\n // Fix for issue #96: Handle media item dragging and resizing at document level for touch events\n // This allows dragging between tracks on mobile devices\n if (event instanceof TouchEvent) {\n if (this.draggedItem) {\n // Find which track the touch is currently over\n const targetTrack = this.findTrackAtCoordinates(this.getEventCoordinates(event));\n if (targetTrack) {\n // Reuse existing drag logic\n this.onTrackPointerMove(event, targetTrack);\n }\n } else if (this.resizingItem) {\n // Find the track that contains the resizing item\n const targetTrack = this.findTrackContainingItem(this.resizingItem.item.id);\n if (targetTrack) {\n // Reuse existing resize logic\n this.handleResize(event, targetTrack);\n }\n }\n }\n }\n\n // Helper method to find which track is at the given Y coordinate\n private findTrackAtCoordinates(coords: { clientX: number; clientY: number }): Track | null {\n const trackElements = document.querySelectorAll('.track');\n for (const trackElement of Array.from(trackElements)) {\n const rect = trackElement.getBoundingClientRect();\n if (coords.clientY >= rect.top && coords.clientY <= rect.bottom) {\n const trackIndex = Array.from(trackElements).indexOf(trackElement);\n const tracks = this.state().tracks;\n if (trackIndex >= 0 && trackIndex < tracks.length) {\n return tracks[trackIndex];\n }\n }\n }\n return null;\n }\n\n // Helper method to find the track containing a specific item\n private findTrackContainingItem(itemId: string): Track | null {\n const currentState = this.state();\n for (const track of currentState.tracks) {\n if (track.items.some(item => item.id === itemId)) {\n return track;\n }\n }\n return null;\n }\n\n // Helper methods\n getItemStyle(item: MediaItem) {\n return {\n left: `${item.startTime * this.pixelsPerMillisecond()}px`,\n width: `${item.duration * this.pixelsPerMillisecond()}px`\n };\n }\n\n getMediaTypeClass(type: MediaType): string {\n return `media-${type}`;\n }\n\n formatTime(milliseconds: number): string {\n const seconds = Math.floor(milliseconds / 1000);\n const minutes = Math.floor(seconds / 60);\n const remainingSeconds = seconds % 60;\n const cs = Math.floor((milliseconds % 1000) / 10);\n return `${minutes}:${remainingSeconds.toString().padStart(2, '0')}.${cs.toString().padStart(2, '0')}`;\n }\n\n /**\n * Calculate appropriate time interval for markers based on zoom level\n * to prevent marker labels from overlapping\n */\n private getMarkerInterval(): number {\n // Minimum spacing between markers in pixels to prevent overlap\n // Enough space for \"0:00.000\" text (about 50-60px)\n const MIN_M***********NG_PX = 60;\n\n // Calculate how much time represents MIN_M***********NG_PX at current zoom\n const pixelsPerMs = this.pixelsPerMillisecond();\n const minTimeSpacing = MIN_M***********NG_PX / pixelsPerMs;\n\n // Define possible intervals (in ms): 100ms, 250ms, 500ms, 1s, 2s, 5s, 10s, 30s, 60s\n const intervals = [100, 250, 500, 1000, 2000, 5000, 10000, 30000, 60000];\n\n // Find the smallest interval that's larger than or equal to minTimeSpacing\n for (const interval of intervals) {\n if (interval >= minTimeSpacing) {\n return interval;\n }\n }\n\n // If even 60s is too small, use larger intervals\n return Math.ceil(minTimeSpacing / 60000) * 60000;\n }\n\n getTimeMarkers(): { position: number; label: string }[] {\n const markers: { position: number; label: string }[] = [];\n const stepMs = this.getMarkerInterval(); // Dynamic interval based on zoom level\n\n // Fix for issue #85: Do not show the last time mark at totalDuration\n // to prevent container expansion from the text label\n for (let time = 0; time < this.state().totalDuration; time += stepMs) {\n markers.push({\n position: time * this.pixelsPerMillisecond(),\n label: this.formatTime(time)\n });\n }\n\n return markers;\n }\n\n // Add placeholder media item\n addMediaItem(type: MediaType, trackId: string): void {\n const currentState = this.state();\n const track = currentState.tracks.find(t => t.id === trackId);\n\n if (!track) return;\n\n const playheadTime = currentState.playheadPosition;\n const totalDuration = currentState.totalDuration;\n const newItemDuration = type === MediaType.IMAGE ? 5000 : 3000;\n\n // Determine the start time for the new item using the service\n const startTime = this.dragDropService.calculateNewItemStartTime(\n playheadTime,\n track.items,\n this.SNAP_PROXIMITY_MS\n );\n\n // Fix for issue #48: Ensure new item doesn't exceed totalDuration\n const maxAllowedDuration = totalDuration - startTime;\n const finalDuration = Math.min(newItemDuration, maxAllowedDuration);\n\n // Fix for issue #64: Verify that the new item doesn't overlap with any existing items\n const testItem: MediaItem = {\n id: 'temp',\n type,\n startTime,\n duration: finalDuration,\n trackId,\n name: '',\n isPlaceholder: true\n };\n\n // Validate and adjust position if needed\n const validatedStartTime = this.dragDropService.validateItemPosition(testItem, track.items);\n\n // Recalculate duration limit if position was adjusted\n const adjus****************ation = totalDuration - validatedStartTime;\n const adjustedDuration = Math.min(newItemDuration, adjustedMaxAllowedDuration);\n\n // Create the final non-overlapping item\n const newItem: MediaItem = {\n id: `item-${Date.now()}`,\n type,\n startTime: validatedStartTime,\n duration: adjustedDuration,\n trackId,\n name: `${type} placeholder`,\n isPlaceholder: true\n };\n\n // Set maxDuration for audio and video placeholders\n if (type === MediaType.VIDEO) {\n newItem.maxDuration = Math.min(10000, adjustedMaxAllowedDuration); // 10 seconds default for video\n } else if (type === MediaType.AUDIO) {\n newItem.maxDuration = Math.min(15000, adjustedMaxAllowedDuration); // 15 seconds default for audio\n }\n\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t =>\n t.id === trackId\n ? { ...t, items: [...t.items, newItem] }\n : t\n )\n }));\n }\n\n removeMediaItem(itemId: string, trackId: string): void {\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t =>\n t.id === trackId\n ? { ...t, items: t.items.filter(i => i.id !== itemId) }\n : t\n ),\n // Deselect if removing selected item\n selectedItemId: s.selectedItemId === itemId ? null : s.selectedItemId\n }));\n }\n\n // Media selection\n selectMediaItem(itemId: string): void {\n this.state.update(s => ({\n ...s,\n selectedItemId: itemId\n }));\n }\n\n deselectMediaItem(): void {\n this.state.update(s => ({\n ...s,\n selectedItemId: null\n }));\n }\n\n isItemSelected(itemId: string): boolean {\n return this.state().selectedItemId === itemId;\n }\n\n readonly MediaType = MediaType;\n\n // Video preview controls\n togglePlayback(): void {\n this.isPlaying.update(playing => !playing);\n }\n\n skipBackward(): void {\n this.state.update(s => ({\n ...s,\n playheadPosition: Math.max(0, s.playheadPosition - 5000)\n }));\n }\n\n skipForward(): void {\n this.state.update(s => ({\n ...s,\n playheadPosition: Math.min(s.totalDuration, s.playheadPosition + 5000)\n }));\n }\n\n // Duration editor methods\n openDurationEditor(): void {\n this.editedDuration = this.state().totalDuration / 1000;\n this.showDurationEditor.set(true);\n }\n\n closeDurationEditor(): void {\n this.showDurationEditor.set(false);\n }\n\n onDurationInputChange(event: Event): void {\n const input = event.target as HTMLInputElement;\n const value = parseFloat(input.value);\n if (!isNaN(value) && value > 0) {\n this.editedDuration = value;\n }\n }\n\n saveDuration(): void {\n const newDurationMs = Math.max(1000, this.editedDuration * 1000); // At least 1 second\n this.state.update(s => ({\n ...s,\n totalDuration: newDurationMs,\n // Ensure playhead doesn't exceed new duration\n playheadPosition: Math.min(s.playheadPosition, newDurationMs)\n }));\n this.closeDurationEditor();\n }\n\n // Media library methods\n openMediaLibrary(trackId: string): void {\n this.mediaLibraryTargetTrackId = trackId;\n this.showMediaLibrary.set(true);\n }\n\n closeMediaLibrary(): void {\n this.showMediaLibrary.set(false);\n this.mediaLibraryTargetTrackId = null;\n }\n\n onMediaSelected(media: MediaLibraryItem): void {\n if (!this.mediaLibraryTargetTrackId) return;\n\n const currentState = this.state();\n const track = currentState.tracks.find(t => t.id === this.mediaLibraryTargetTrackId);\n\n if (!track) return;\n\n const playheadTime = currentState.playheadPosition;\n const totalDuration = currentState.totalDuration;\n\n // Determine the start time for the new item using the service\n const startTime = this.dragDropService.calculateNewItemStartTime(\n playheadTime,\n track.items,\n this.SNAP_PROXIMITY_MS\n );\n\n // Ensure item doesn't exceed totalDuration\n const maxAllowedDuration = totalDuration - startTime;\n const finalDuration = Math.min(media.duration, maxAllowedDuration);\n\n // Verify that the new item doesn't overlap with any existing items\n const testItem: MediaItem = {\n id: 'temp',\n type: media.type,\n startTime,\n duration: finalDuration,\n trackId: this.mediaLibraryTargetTrackId,\n name: '',\n isPlaceholder: false\n };\n\n // Validate and adjust position if needed\n const validatedStartTime = this.dragDropService.validateItemPosition(testItem, track.items);\n\n // Recalculate duration limit if position was adjusted\n const adjus****************ation = totalDuration - validatedStartTime;\n const adjustedDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n\n // Create the final non-overlapping item\n const newItem: MediaItem = {\n id: `item-${Date.now()}`,\n type: media.type,\n startTime: validatedStartTime,\n duration: adjustedDuration,\n trackId: this.mediaLibraryTargetTrackId,\n name: media.name,\n isPlaceholder: false\n };\n\n // Set maxDuration for audio and video\n if (media.type === MediaType.VIDEO) {\n newItem.maxDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n } else if (media.type === MediaType.AUDIO) {\n newItem.maxDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n }\n\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t =>\n t.id === this.mediaLibraryTargetTrackId\n ? { ...t, items: [...t.items, newItem] }\n : t\n )\n }));\n\n // Close the media library after selection\n this.closeMediaLibrary();\n }\n\n /**\n * Trim (split) the selected media item at the playhead position.\n * Creates two separate items from the original media.\n */\n trimSelectedMedia(): void {\n const currentState = this.state();\n const selectedItemId = currentState.selectedItemId;\n\n if (!selectedItemId) {\n return;\n }\n\n // Find the selected item and its track\n let selectedItem: MediaItem | null = null;\n let selectedTrack: Track | null = null;\n\n for (const track of currentState.tracks) {\n const item = track.items.find(i => i.id === selectedItemId);\n if (item) {\n selectedItem = item;\n selectedTrack = track;\n break;\n }\n }\n\n if (!selectedItem || !selectedTrack) {\n return;\n }\n\n const playheadTime = currentState.playheadPosition;\n const itemStart = selectedItem.startTime;\n const itemEnd = itemStart + selectedItem.duration;\n\n // Check if playhead is within the selected media item\n if (playheadTime <= itemStart || playheadTime >= itemEnd) {\n // Playhead is not within the selected media - show notification\n this.notificationsComponent?.showNotification(\n 'Position the playhead within the selected media to trim it.',\n 'warning'\n );\n return;\n }\n\n // Ensure both parts will have at least MIN_ITEM_DURATION\n const firstPartDuration = playheadTime - itemStart;\n const secondPartDuration = itemEnd - playheadTime;\n\n if (firstPartDuration < this.MIN_ITEM_DURATION || secondPartDuration < this.MIN_ITEM_DURATION) {\n this.notificationsComponent?.showNotification(\n 'Cannot trim: resulting parts would be too short.',\n 'warning'\n );\n return;\n }\n\n // Calculate mediaStartTime adjustments\n const origi************tTime = selectedItem.mediaStartTime || 0;\n const secon**************tTime = origi************tTime + firstPartDuration;\n\n // Create two new items from the original\n const firstPart: MediaItem = {\n ...selectedItem,\n id: `item-${Date.now()}-1`,\n duration: firstPartDuration\n // mediaStartTime stays the same for first part\n };\n\n const secondPart: MediaItem = {\n ...selectedItem,\n id: `item-${Date.now()}-2`,\n startTime: playheadTime,\n duration: secondPartDuration,\n mediaStartTime: secondPartMediaStartTime\n };\n\n // Update the state: remove original, add two new parts\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t => {\n if (t.id === selectedTrack!.id) {\n return {\n ...t,\n items: [\n ...t.items.filter(i => i.id !== selectedItemId),\n firstPart,\n secondPart\n ]\n };\n }\n return t;\n }),\n // Deselect after trimming\n selectedItemId: null\n }));\n\n this.notificationsComponent?.showNotification(\n 'Media trimmed successfully.',\n 'success'\n );\n }\n\n /**\n * Copy the selected media item to the clipboard.\n * Stores a copy of the item and the track it was copied from.\n */\n copySelectedMedia(): void {\n const currentState = this.state();\n const selectedItemId = currentState.selectedItemId;\n\n if (!selectedItemId) {\n return;\n }\n\n // Find the selected item and its track\n let selectedItem: MediaItem | null = null;\n let selectedTrackId: string | null = null;\n\n for (const track of currentState.tracks) {\n const item = track.items.find(i => i.id === selectedItemId);\n if (item) {\n selectedItem = item;\n selectedTrackId = track.id;\n break;\n }\n }\n\n if (!selectedItem || !selectedTrackId) {\n return;\n }\n\n // Store a copy of the item in clipboard\n this.clipboardItem.set({ ...selectedItem });\n this.clipboardSourceTrackId.set(selectedTrackId);\n\n this.notificationsComponent?.showNotification(\n 'Media copied to clipboard.',\n 'success'\n );\n }\n\n /**\n * Paste the clipboard media item at the playhead position.\n * Pastes on the same track where the item was copied from.\n * If there's no space at playhead position, finds the next available slot.\n */\n pasteMedia(): void {\n const copiedItem = this.clipboardItem();\n const sourceTrackId = this.clipboardSourceTrackId();\n\n if (!copiedItem || !sourceTrackId) {\n return;\n }\n\n const currentState = this.state();\n const playheadTime = currentState.playheadPosition;\n const totalDuration = currentState.totalDuration;\n\n // Find the source track\n let targetTrack = currentState.tracks.find(t => t.id === sourceTrackId);\n\n // If source track no longer exists, use the first track\n if (!targetTrack) {\n targetTrack = currentState.tracks[0];\n if (!targetTrack) {\n this.notificationsComponent?.showNotification(\n 'No tracks available to paste media.',\n 'error'\n );\n return;\n }\n }\n\n const itemDuration = copiedItem.duration;\n\n // Try to find a valid position starting from playhead\n const pastePosition = this.findPastePosition(\n playheadTime,\n itemDuration,\n targetTrack.items,\n totalDuration\n );\n\n if (pastePosition === null) {\n this.notificationsComponent?.showNotification(\n 'No space available to paste media on this track.',\n 'warning'\n );\n return;\n }\n\n // Create a new item with a new ID\n const newItem: MediaItem = {\n ...copiedItem,\n id: `item-${Date.now()}`,\n startTime: pastePosition,\n trackId: targetTrack.id\n };\n\n // Add the new item to the track\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t =>\n t.id === targetTrack!.id\n ? { ...t, items: [...t.items, newItem] }\n : t\n )\n }));\n\n this.notificationsComponent?.showNotification(\n 'Media pasted successfully.',\n 'success'\n );\n }\n\n /**\n * Find a valid position to paste media item.\n * First tries at the playhead position, then finds the next available gap.\n */\n private findPastePosition(\n preferredPosition: number,\n duration: number,\n existingItems: MediaItem[],\n totalDuration: number\n ): number | null {\n // Check if we can fit at the preferred position (playhead)\n if (this.canFitAtPosition(preferredPosition, duration, existingItems, totalDuration)) {\n return preferredPosition;\n }\n\n // Sort existing items by start time\n const sortedItems = [...existingItems].sort((a, b) => a.startTime - b.startTime);\n\n // Find all gaps on the track and try to place the item\n const gaps = this.dragDropService.findAllGaps(sortedItems);\n\n // First, try to find a gap that starts at or after the playhead\n for (const gap of gaps) {\n // Calculate actual gap size (considering totalDuration for infinite gaps)\n const effectiveGapEnd = gap.gapEnd === Infinity ? totalDuration : gap.gapEnd;\n const gapSize = effectiveGapEnd - gap.gapStart;\n\n if (gap.gapStart >= preferredPosition && gapSize >= duration) {\n return gap.gapStart;\n }\n }\n\n // If no gap after playhead, try any gap that can fit the item\n for (const gap of gaps) {\n // Calculate actual gap size (considering totalDuration for infinite gaps)\n const effectiveGapEnd = gap.gapEnd === Infinity ? totalDuration : gap.gapEnd;\n const gapSize = effectiveGapEnd - gap.gapStart;\n\n if (gapSize >= duration) {\n return gap.gapStart;\n }\n }\n\n // No suitable position found\n return null;\n }\n\n /**\n * Check if an item can fit at a specific position without overlapping.\n */\n private canFitAtPosition(\n position: number,\n duration: number,\n existingItems: MediaItem[],\n totalDuration: number\n ): boolean {\n // Check bounds\n if (position < 0 || position + duration > totalDuration) {\n return false;\n }\n\n // Check for overlaps with existing items\n const endPosition = position + duration;\n for (const item of existingItems) {\n const itemEnd = item.startTime + item.duration;\n // Check if there's an overlap\n if (position < itemEnd && endPosition > item.startTime) {\n return false;\n }\n }\n\n return true;\n }\n}\n","numLines":1138,"startLine":1,"totalLines":1138}}} | |
| [2025-12-05T10:38:25.515Z] [INFO] { | |
| "type": "assistant", | |
| "message": { | |
| "model": "claude-opus-4-5-20251101", | |
| "id": "msg_012VxfYfwrUnLFZ8RhZwDkJo", | |
| "type": "message", | |
| "role": "assistant", | |
| "content": [ | |
| { | |
| "type": "text", | |
| "text": "Now I need to update the timeline component to:\n1. Import and use the PlaybackService\n2. Add a canvas reference for the preview area\n3. Update `onMediaSelected` to pass the URL\n4. Connect the playback controls to the PlaybackService\n5. Handle seeking when the playhead is moved manually" | |
| } | |
| ], | |
| "stop_reason": null, | |
| "stop_sequence": null, | |
| "usage": { | |
| "input_tokens": 1, | |
| "cache_creation_input_tokens": 14604, | |
| "cache_read_input_tokens": 63652, | |
| "cache_creation": { | |
| "ephemeral_5m_input_tokens": 14604, | |
| "ephemeral_1h_input_tokens": 0 | |
| }, | |
| "output_tokens": 3, | |
| "service_tier": "standard" | |
| }, | |
| "context_management": null | |
| }, | |
| "parent_tool_use_id": null, | |
| "session_id": "d5b1bf94-1397-44f7-9390-3c57ba19d0b0", | |
| "uuid": "8ef5310b-1d71-4aea-b8da-14235145dea3" | |
| } | |
| [2025-12-05T10:38:30.185Z] [INFO] { | |
| "type": "assistant", | |
| "message": { | |
| "model": "claude-opus-4-5-20251101", | |
| "id": "msg_012VxfYfwrUnLFZ8RhZwDkJo", | |
| "type": "message", | |
| "role": "assistant", | |
| "content": [ | |
| { | |
| "type": "tool_use", | |
| "id": "toolu_01VR3zANUbukRsBiaNbSaJoa", | |
| "name": "Edit", | |
| "input": { | |
| "file_path": "/tmp/gh-issue-solver-1764930855025/video-timeline/src/app/components/timeline/timeline.component.ts", | |
| "old_string": "import { Component, signal, computed, ViewChild, ElementRef } from '@angular/core';\nimport { CommonModule } from '@angular/common';\nimport { MediaType, MediaItem, Track, TimelineState } from '../../models/timeline.models';\nimport { MediaLibraryComponent, MediaLibraryItem } from '../media-library/media-library.component';\nimport { Media***********onent } from '../media-toolbar/media-toolbar.component';\nimport { Notif************onent } from '../notifications/notifications.component';\nimport { Timel*************rvice } from '../../services/timeline-drag-drop.service';", | |
| "new_string": "import { Component, signal, computed, ViewChild, ElementRef, AfterViewInit, OnDestroy, effect } from '@angular/core';\nimport { CommonModule } from '@angular/common';\nimport { MediaType, MediaItem, Track, TimelineState } from '../../models/timeline.models';\nimport { MediaLibraryComponent, MediaLibraryItem } from '../media-library/media-library.component';\nimport { Media***********onent } from '../media-toolbar/media-toolbar.component';\nimport { Notif************onent } from '../notifications/notifications.component';\nimport { Timel*************rvice } from '../../services/timeline-drag-drop.service';\nimport { PlaybackService } from '../../services/playback.service';" | |
| } | |
| } | |
| ], | |
| "stop_reason": "tool_use", | |
| "stop_sequence": null, | |
| "usage": { | |
| "input_tokens": 1, | |
| "cache_creation_input_tokens": 14604, | |
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| "ephemeral_1h_input_tokens": 0 | |
| }, | |
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| "service_tier": "standard" | |
| }, | |
| "context_management": { | |
| "applied_edits": [] | |
| } | |
| }, | |
| "parent_tool_use_id": null, | |
| "session_id": "d5b1bf94-1397-44f7-9390-3c57ba19d0b0", | |
| "uuid": "55cd2918-9be7-4db0-afb7-0f32352ce037" | |
| } | |
| [2025-12-05T10:38:30.591Z] [INFO] { | |
| "type": "user", | |
| "message": { | |
| "role": "user", | |
| "content": [ | |
| { | |
| "tool_use_id": "toolu_01VR3zANUbukRsBiaNbSaJoa", | |
| "type": "tool_result", | |
| "content": "The file /tmp/gh-issue-solver-1764930855025/video-timeline/src/app/components/timeline/timeline.component.ts has been updated. Here's the result of running `cat -n` on a snippet of the edited file:\n 1→import { Component, signal, computed, ViewChild, ElementRef, AfterViewInit, OnDestroy, effect } from '@angular/core';\n 2→import { CommonModule } from '@angular/common';\n 3→import { MediaType, MediaItem, Track, TimelineState } from '../../models/timeline.models';\n 4→import { MediaLibraryComponent, MediaLibraryItem } from '../media-library/media-library.component';\n 5→import { Media***********onent } from '../media-toolbar/media-toolbar.component';\n 6→import { Notif************onent } from '../notifications/notifications.component';\n 7→import { Timel*************rvice } from '../../services/timeline-drag-drop.service';\n 8→import { PlaybackService } from '../../services/playback.service';\n 9→\n 10→@Component({\n 11→ selector: 'app-timeline',\n 12→ standalone: true," | |
| } | |
| ] | |
| }, | |
| "parent_tool_use_id": null, | |
| "session_id": "d5b1bf94-1397-44f7-9390-3c57ba19d0b0", | |
| "uuid": "e8d819c3-d219-4765-99ce-8b6fae0429f3", | |
| "tool_use_result": { | |
| "filePath": "/tmp/gh-issue-solver-1764930855025/video-timeline/src/app/components/timeline/timeline.component.ts", | |
| "oldString": "import { Component, signal, computed, ViewChild, ElementRef } from '@angular/core';\nimport { CommonModule } from '@angular/common';\nimport { MediaType, MediaItem, Track, TimelineState } from '../../models/timeline.models';\nimport { MediaLibraryComponent, MediaLibraryItem } from '../media-library/media-library.component';\nimport { Media***********onent } from '../media-toolbar/media-toolbar.component';\nimport { Notif************onent } from '../notifications/notifications.component';\nimport { Timel*************rvice } from '../../services/timeline-drag-drop.service';", | |
| "newString": "import { Component, signal, computed, ViewChild, ElementRef, AfterViewInit, OnDestroy, effect } from '@angular/core';\nimport { CommonModule } from '@angular/common';\nimport { MediaType, MediaItem, Track, TimelineState } from '../../models/timeline.models';\nimport { MediaLibraryComponent, MediaLibraryItem } from '../media-library/media-library.component';\nimport { Media***********onent } from '../media-toolbar/media-toolbar.component';\nimport { Notif************onent } from '../notifications/notifications.component';\nimport { Timel*************rvice } from '../../services/timeline-drag-drop.service';\nimport { PlaybackService } from '../../services/playback.service';", | |
| "originalFile": "import { Component, signal, computed, ViewChild, ElementRef } from '@angular/core';\nimport { CommonModule } from '@angular/common';\nimport { MediaType, MediaItem, Track, TimelineState } from '../../models/timeline.models';\nimport { MediaLibraryComponent, MediaLibraryItem } from '../media-library/media-library.component';\nimport { Media***********onent } from '../media-toolbar/media-toolbar.component';\nimport { Notif************onent } from '../notifications/notifications.component';\nimport { Timel*************rvice } from '../../services/timeline-drag-drop.service';\n\n@Component({\n selector: 'app-timeline',\n standalone: true,\n imports: [CommonModule, MediaLibraryComponent, MediaToolbarComponent, NotificationsComponent],\n templateUrl: './timeline.component.html',\n styleUrl: './timeline.component.css'\n})\nexport class TimelineComponent {\n // Zoom levels: pixels per second\n private readonly MIN_ZOOM = 10;\n private readonly MAX_ZOOM = 200;\n private readonly ZOOM_STEP = 20;\n readonly TRACK_HEADER_WIDTH = 150; // Width of track header in pixels\n private readonly SNAP_PROXIMITY_MS = 500; // Snap to item if playhead is within 500ms\n private readonly MIN_ITEM_DURATION = 100; // Minimum item duration in milliseconds\n\n // View references\n @ViewChild('timelineRuler') timelineRuler?: ElementRef<HTMLElement>;\n @ViewChild('notifications') notificationsComponent?: NotificationsComponent;\n\n // Timeline state\n readonly state = signal<TimelineState>({\n tracks: [\n { id: '1', name: 'Track 1', order: 0, items: [] },\n { id: '2', name: 'Track 2', order: 1, items: [] }\n ],\n playheadPosition: 0,\n zoomLevel: 50, // pixels per second\n totalDuration: 120000, // 120 seconds in milliseconds\n selectedItemId: null\n });\n\n // Computed values\n readonly pixel**********econd = computed(() => {\n return this.state().zoomLevel / 1000;\n });\n\n readonly timelineWidth = computed(() => {\n const state = this.state();\n // Calculate the maximum end time across all tracks\n let maxEndTime = state.totalDuration;\n\n for (const track of state.tracks) {\n for (const item of track.items) {\n const itemEndTime = item.startTime + item.duration;\n if (itemEndTime > maxEndTime) {\n maxEndTime = itemEndTime;\n }\n }\n }\n\n return maxEndTime * this.pixelsPerMillisecond();\n });\n\n readonly timelineLineHeight = computed(() => {\n const state = this.state();\n return state.tracks.length * 60 + 32;\n });\n\n readonly playheadPosition = computed(() => {\n return this.state().playheadPosition * this.pixelsPerMillisecond();\n });\n\n readonly playh************ition = computed(() => {\n return this.playheadPosition() + this.TRACK_HEADER_WIDTH;\n });\n\n // Computed: whether a media item is currently selected\n readonly hasSelectedItem = computed(() => {\n return this.state().selectedItemId !== null;\n });\n\n // Dragging state\n private draggedItem: MediaItem | null = null;\n private draggedItemOriginalTrackId: string | null = null;\n private dragOffsetTime: number = 0; // Offset in milliseconds from item start to cursor position\n private isDraggingPlayhead = false;\n private isDraggingFromRuler = false;\n private resizingItem: { item: MediaItem; edge: 'left' | 'right' } | null = null;\n private mouseDownPosition: { x: number; y: number } | null = null; // Track mouse down position for click detection\n\n // Video preview state\n readonly isPlaying = signal<boolean>(false);\n\n // Duration editor state\n readonly showDurationEditor = signal<boolean>(false);\n private editedDuration: number = 120; // Duration in seconds\n\n // Media library state\n readonly showMediaLibrary = signal<boolean>(false);\n private mediaLibraryTargetTrackId: string | null = null;\n\n // Clipboard state for copy/paste functionality\n private readonly clipboardItem = signal<MediaItem | null>(null);\n private readonly clipb************ackId = signal<string | null>(null);\n\n // Computed: whether a media item is in clipboard\n readonly hasClipboardItem = computed(() => {\n return this.clipboardItem() !== null;\n });\n\n constructor(private dragDropService: TimelineDragDropService) {\n }\n\n // Track management\n addTrack(): void {\n const currentState = this.state();\n const newTrack: Track = {\n id: `track-${Date.now()}`,\n name: `Track ${currentState.tracks.length + 1}`,\n order: currentState.tracks.length,\n items: []\n };\n\n this.state.update(s => ({\n ...s,\n tracks: [...s.tracks, newTrack]\n }));\n }\n\n removeTrack(trackId: string): void {\n const currentState = this.state();\n if (currentState.tracks.length <= 1) {\n return; // Keep at least one track\n }\n\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.filter(t => t.id !== trackId)\n }));\n }\n\n // Zoom controls\n zoomIn(): void {\n this.state.update(s => ({\n ...s,\n zoomLevel: Math.min(s.zoomLevel + this.ZOOM_STEP, this.MAX_ZOOM)\n }));\n }\n\n zoomOut(): void {\n this.state.update(s => ({\n ...s,\n zoomLevel: Math.max(s.zoomLevel - this.ZOOM_STEP, this.MIN_ZOOM)\n }));\n }\n\n // Utility method to extract coordinates from mouse or touch events\n private getEventCoordinates(event: MouseEvent | TouchEvent): { clientX: number; clientY: number } {\n if (event instanceof MouseEvent) {\n return { clientX: event.clientX, clientY: event.clientY };\n } else {\n const touch = event.touches[0] || event.changedTouches[0];\n return { clientX: touch.clientX, clientY: touch.clientY };\n }\n }\n\n // Playhead controls\n onRulerPointerDown(event: MouseEvent | TouchEvent): void {\n event.preventDefault();\n this.isDraggingFromRuler = true;\n\n // Immediately update position on pointer down\n const target = event.currentTarget as HTMLElement;\n const rect = target.getBoundingClientRect();\n const coords = this.getEventCoordinates(event);\n // Calculate position within the ruler element\n // getBoundingClientRect() already accounts for scroll, so we don't add scrollLeft\n const x = coords.clientX - rect.left;\n const newPosition = x / this.pixelsPerMillisecond();\n\n this.state.update(s => ({\n ...s,\n playheadPosition: Math.max(0, Math.min(newPosition, s.totalDuration))\n }));\n }\n\n onPlayheadPointerDown(event: MouseEvent | TouchEvent): void {\n event.preventDefault();\n event.stopPropagation();\n this.isDraggingPlayhead = true;\n }\n\n\n // Media item drag and drop\n onMediaItemPointerDown(event: MouseEvent | TouchEvent, item: MediaItem, track: Track): void {\n const target = event.target as HTMLElement;\n\n // Check if clicking/touching on resize handle\n if (target.classList.contains('resize-handle')) {\n this.resizingItem = {\n item,\n edge: target.classList.contains('resize-handle-left') ? 'left' : 'right'\n };\n event.preventDefault();\n return;\n }\n\n const coords = this.getEventCoordinates(event);\n this.mouseDownPosition = { x: coords.clientX, y: coords.clientY };\n\n const mediaItemElement = event.currentTarget as HTMLElement;\n const rect = mediaItemElement.getBoundingClientRect();\n const clickX = coords.clientX - rect.left;\n\n // Convert pixel offset to time offset\n this.dragOffsetTime = clickX / this.pixelsPerMillisecond();\n\n this.draggedItem = item;\n this.draggedItemOriginalTrackId = track.id;\n event.preventDefault();\n }\n\n onTrackPointerDown(event: MouseEvent | TouchEvent): void {\n // Deselect when clicking/touching track background (not on media item)\n const target = event.target as HTMLElement;\n if (target.classList.contains('track')) {\n this.deselectMediaItem();\n }\n }\n\n onTrackPointerMove(event: MouseEvent | TouchEvent, track: Track): void {\n if (this.resizingItem) {\n this.handleResize(event, track);\n return;\n }\n event.preventDefault();\n event.stopPropagation();\n\n if (!this.draggedItem) return;\n\n const coords = this.getEventCoordinates(event);\n const target = event.currentTarget as HTMLElement;\n const rect = target.getBoundingClientRect();\n const x = coords.clientX - rect.left;\n const requestedStartTime = Math.max(0, x / this.pixelsPerMillisecond() - this.dragOffsetTime);\n\n this.state.update(s => {\n const updatedTracks = s.tracks.map(t => {\n if (t.id === track.id) {\n // Get all items except the dragged one for collision detection\n const otherItems = t.items.filter(i => i.id !== this.draggedItem!.id);\n\n // Fix for issue #81: Find snap targets (playhead and items on all tracks)\n const snapTargets = this.dragDropService.findSnapTargets(\n this.draggedItem!.id,\n s.tracks,\n s.playheadPosition\n );\n\n // Calculate valid position and duration considering collisions, gap fitting, and snapping\n const validPosition = this.dragDropService.getValidDragPosition(\n this.draggedItem!,\n requestedStartTime,\n otherItems,\n s.totalDuration,\n snapTargets\n );\n\n // Check if item already exists in this track\n const itemExists = t.items.some(i => i.id === this.draggedItem!.id);\n\n if (itemExists) {\n // Update position and duration in current track\n return {\n ...t,\n items: t.items.map(i =>\n i.id === this.draggedItem!.id\n ? {\n ...i,\n startTime: validPosition.startTime,\n duration: validPosition.duration,\n trackId: track.id\n }\n : i\n )\n };\n } else {\n // Add to new track with adjusted position and duration\n return {\n ...t,\n items: [\n ...otherItems,\n {\n ...this.draggedItem!,\n startTime: validPosition.startTime,\n duration: validPosition.duration,\n trackId: track.id\n }\n ]\n };\n }\n } else if (t.id === this.draggedItemOriginalTrackId && t.id !== track.id) {\n // Remove from original track only if moving to different track\n return {\n ...t,\n items: t.items.filter(i => i.id !== this.draggedItem!.id)\n };\n }\n return t;\n });\n\n // Update the original track ID to current track for smooth dragging within same track\n this.draggedItemOriginalTrackId = track.id;\n\n return { ...s, tracks: updatedTracks };\n });\n }\n\n private handleResize(event: MouseEvent | TouchEvent, track: Track): void {\n if (!this.resizingItem) return;\n\n const coords = this.getEventCoordinates(event);\n const target = event.currentTarget as HTMLElement;\n const rect = target.getBoundingClientRect();\n // Fix for issue #83: getBoundingClientRect() returns viewport-relative coordinates,\n // and coords.clientX is also viewport-relative, so we don't need to add scrollLeft\n const x = coords.clientX - rect.left;\n const timeAtCursor = x / this.pixelsPerMillisecond();\n\n this.state.update(s => {\n // Fix for issue #87: Find snap targets for resize operations\n const snapTargets = this.dragDropService.findSnapTargets(\n this.resizingItem!.item.id,\n s.tracks,\n s.playheadPosition\n );\n\n const updatedTracks = s.tracks.map(t => {\n if (t.id === track.id) {\n // Get resize bounds considering adjacent items\n const bounds = this.dragDropService.getResizeBounds(\n this.resizingItem!.item,\n t.items,\n this.resizingItem!.edge,\n s.totalDuration\n );\n\n return {\n ...t,\n items: t.items.map(i => {\n if (i.id === this.resizingItem!.item.id) {\n if (this.resizingItem!.edge === 'left') {\n // Fix for issue #89: Handle mediaStartTime when resizing from left\n // Apply snapping to left edge (start time)\n let newStartTime = Math.max(\n bounds.minTime,\n Math.min(timeAtCursor, bounds.maxTime)\n );\n\n // Apply snapping if within snap distance\n let minDistance = this.dragDropService.SNAP_DISTANCE_MS;\n for (const target of snapTargets) {\n const distance = Math.abs(newStartTime - target);\n if (distance < minDistance) {\n minDistance = distance;\n // Only snap if within bounds\n if (target >= bounds.minTime && target <= bounds.maxTime) {\n newStartTime = target;\n }\n }\n }\n\n // Calculate how much the timeline position is changing\n const deltaTime = newStartTime - i.startTime;\n const newDuration = i.duration - deltaTime;\n\n // Update media start time (trimming from source media)\n const curre***********tTime = i.mediaStartTime || 0;\n const newMediaStartTime = curre***********tTime + deltaTime;\n\n // Check if we're trying to extend beyond the start of source media\n if (newMediaStartTime < 0) {\n // Can only extend left by curre***********tTime amount\n const maxExtension = currentMediaStartTime;\n const finalStartTime = i.startTime - maxExtension;\n const finalDuration = i.duration + maxExtension;\n\n // Ensure we don't exceed maxDuration\n if (i.maxDuration && finalDuration > i.maxDuration) {\n return {\n ...i,\n startTime: finalStartTime + (finalDuration - i.maxDuration),\n duration: i.maxDuration,\n mediaStartTime: 0\n };\n }\n\n return {\n ...i,\n startTime: finalStartTime,\n duration: finalDuration,\n mediaStartTime: 0\n };\n }\n\n // Ensure media end doesn't exceed maxDuration\n if (i.maxDuration && newMediaStartTime + newDuration > i.maxDuration) {\n const maxAllowedDuration = i.maxDuration - newMediaStartTime;\n return {\n ...i,\n startTime: i.startTime + (i.duration - maxAllowedDuration),\n duration: maxAllowedDuration,\n mediaStartTime: newMediaStartTime\n };\n }\n\n return {\n ...i,\n startTime: newStartTime,\n duration: newDuration,\n mediaStartTime: newMediaStartTime\n };\n } else {\n // Fix for issue #87: Apply snapping to right edge (end time)\n let newEndTime = Math.max(\n bounds.minTime,\n Math.min(timeAtCursor, bounds.maxTime)\n );\n\n // Apply snapping if within snap distance\n let minDistance = this.dragDropService.SNAP_DISTANCE_MS;\n for (const target of snapTargets) {\n const distance = Math.abs(newEndTime - target);\n if (distance < minDistance) {\n minDistance = distance;\n // Only snap if within bounds\n if (target >= bounds.minTime && target <= bounds.maxTime) {\n newEndTime = target;\n }\n }\n }\n\n const newDuration = newEndTime - i.startTime;\n\n // Limit duration by maxDuration if specified\n const limitedDuration = i.maxDuration\n ? Math.min(newDuration, i.maxDuration)\n : newDuration;\n\n return { ...i, duration: limitedDuration };\n }\n }\n return i;\n })\n };\n }\n return t;\n });\n\n return { ...s, tracks: updatedTracks };\n });\n }\n\n onPointerUp(event: MouseEvent | TouchEvent): void {\n // Detect if this was a click/tap (not a drag) on a media item\n if (this.draggedItem && this.mouseDownPosition) {\n const coords = this.getEventCoordinates(event);\n const dx = coords.clientX - this.mouseDownPosition.x;\n const dy = coords.clientY - this.mouseDownPosition.y;\n const distance = Math.sqrt(dx * dx + dy * dy);\n\n // If pointer moved less than 5 pixels, consider it a click/tap\n if (distance < 5) {\n this.selectMediaItem(this.draggedItem.id);\n }\n }\n\n this.draggedItem = null;\n this.draggedItemOriginalTrackId = null;\n this.dragOffsetTime = 0;\n this.isDraggingPlayhead = false;\n this.isDraggingFromRuler = false;\n this.resizingItem = null;\n this.mouseDownPosition = null;\n }\n\n onDocumentPointerMove(event: MouseEvent | TouchEvent): void {\n if (this.isDraggingPlayhead || this.isDraggingFromRuler) {\n // Fix for issue #50: Use ViewChild reference to ensure we use the exact same element as onRulerPointerDown\n if (!this.timelineRuler) {\n return;\n }\n\n const coords = this.getEventCoordinates(event);\n const rulerElement = this.timelineRuler.nativeElement;\n // Use the same calculation as onRulerPointerDown\n // getBoundingClientRect() already accounts for scroll, so we don't add scrollLeft\n const rect = rulerElement.getBoundingClientRect();\n const x = coords.clientX - rect.left;\n const newPosition = x / this.pixelsPerMillisecond();\n\n this.state.update(s => ({\n ...s,\n playheadPosition: Math.max(0, Math.min(newPosition, s.totalDuration))\n }));\n }\n\n // Fix for issue #96: Handle media item dragging and resizing at document level for touch events\n // This allows dragging between tracks on mobile devices\n if (event instanceof TouchEvent) {\n if (this.draggedItem) {\n // Find which track the touch is currently over\n const targetTrack = this.findTrackAtCoordinates(this.getEventCoordinates(event));\n if (targetTrack) {\n // Reuse existing drag logic\n this.onTrackPointerMove(event, targetTrack);\n }\n } else if (this.resizingItem) {\n // Find the track that contains the resizing item\n const targetTrack = this.findTrackContainingItem(this.resizingItem.item.id);\n if (targetTrack) {\n // Reuse existing resize logic\n this.handleResize(event, targetTrack);\n }\n }\n }\n }\n\n // Helper method to find which track is at the given Y coordinate\n private findTrackAtCoordinates(coords: { clientX: number; clientY: number }): Track | null {\n const trackElements = document.querySelectorAll('.track');\n for (const trackElement of Array.from(trackElements)) {\n const rect = trackElement.getBoundingClientRect();\n if (coords.clientY >= rect.top && coords.clientY <= rect.bottom) {\n const trackIndex = Array.from(trackElements).indexOf(trackElement);\n const tracks = this.state().tracks;\n if (trackIndex >= 0 && trackIndex < tracks.length) {\n return tracks[trackIndex];\n }\n }\n }\n return null;\n }\n\n // Helper method to find the track containing a specific item\n private findTrackContainingItem(itemId: string): Track | null {\n const currentState = this.state();\n for (const track of currentState.tracks) {\n if (track.items.some(item => item.id === itemId)) {\n return track;\n }\n }\n return null;\n }\n\n // Helper methods\n getItemStyle(item: MediaItem) {\n return {\n left: `${item.startTime * this.pixelsPerMillisecond()}px`,\n width: `${item.duration * this.pixelsPerMillisecond()}px`\n };\n }\n\n getMediaTypeClass(type: MediaType): string {\n return `media-${type}`;\n }\n\n formatTime(milliseconds: number): string {\n const seconds = Math.floor(milliseconds / 1000);\n const minutes = Math.floor(seconds / 60);\n const remainingSeconds = seconds % 60;\n const cs = Math.floor((milliseconds % 1000) / 10);\n return `${minutes}:${remainingSeconds.toString().padStart(2, '0')}.${cs.toString().padStart(2, '0')}`;\n }\n\n /**\n * Calculate appropriate time interval for markers based on zoom level\n * to prevent marker labels from overlapping\n */\n private getMarkerInterval(): number {\n // Minimum spacing between markers in pixels to prevent overlap\n // Enough space for \"0:00.000\" text (about 50-60px)\n const MIN_M***********NG_PX = 60;\n\n // Calculate how much time represents MIN_M***********NG_PX at current zoom\n const pixelsPerMs = this.pixelsPerMillisecond();\n const minTimeSpacing = MIN_M***********NG_PX / pixelsPerMs;\n\n // Define possible intervals (in ms): 100ms, 250ms, 500ms, 1s, 2s, 5s, 10s, 30s, 60s\n const intervals = [100, 250, 500, 1000, 2000, 5000, 10000, 30000, 60000];\n\n // Find the smallest interval that's larger than or equal to minTimeSpacing\n for (const interval of intervals) {\n if (interval >= minTimeSpacing) {\n return interval;\n }\n }\n\n // If even 60s is too small, use larger intervals\n return Math.ceil(minTimeSpacing / 60000) * 60000;\n }\n\n getTimeMarkers(): { position: number; label: string }[] {\n const markers: { position: number; label: string }[] = [];\n const stepMs = this.getMarkerInterval(); // Dynamic interval based on zoom level\n\n // Fix for issue #85: Do not show the last time mark at totalDuration\n // to prevent container expansion from the text label\n for (let time = 0; time < this.state().totalDuration; time += stepMs) {\n markers.push({\n position: time * this.pixelsPerMillisecond(),\n label: this.formatTime(time)\n });\n }\n\n return markers;\n }\n\n // Add placeholder media item\n addMediaItem(type: MediaType, trackId: string): void {\n const currentState = this.state();\n const track = currentState.tracks.find(t => t.id === trackId);\n\n if (!track) return;\n\n const playheadTime = currentState.playheadPosition;\n const totalDuration = currentState.totalDuration;\n const newItemDuration = type === MediaType.IMAGE ? 5000 : 3000;\n\n // Determine the start time for the new item using the service\n const startTime = this.dragDropService.calculateNewItemStartTime(\n playheadTime,\n track.items,\n this.SNAP_PROXIMITY_MS\n );\n\n // Fix for issue #48: Ensure new item doesn't exceed totalDuration\n const maxAllowedDuration = totalDuration - startTime;\n const finalDuration = Math.min(newItemDuration, maxAllowedDuration);\n\n // Fix for issue #64: Verify that the new item doesn't overlap with any existing items\n const testItem: MediaItem = {\n id: 'temp',\n type,\n startTime,\n duration: finalDuration,\n trackId,\n name: '',\n isPlaceholder: true\n };\n\n // Validate and adjust position if needed\n const validatedStartTime = this.dragDropService.validateItemPosition(testItem, track.items);\n\n // Recalculate duration limit if position was adjusted\n const adjus****************ation = totalDuration - validatedStartTime;\n const adjustedDuration = Math.min(newItemDuration, adjustedMaxAllowedDuration);\n\n // Create the final non-overlapping item\n const newItem: MediaItem = {\n id: `item-${Date.now()}`,\n type,\n startTime: validatedStartTime,\n duration: adjustedDuration,\n trackId,\n name: `${type} placeholder`,\n isPlaceholder: true\n };\n\n // Set maxDuration for audio and video placeholders\n if (type === MediaType.VIDEO) {\n newItem.maxDuration = Math.min(10000, adjustedMaxAllowedDuration); // 10 seconds default for video\n } else if (type === MediaType.AUDIO) {\n newItem.maxDuration = Math.min(15000, adjustedMaxAllowedDuration); // 15 seconds default for audio\n }\n\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t =>\n t.id === trackId\n ? { ...t, items: [...t.items, newItem] }\n : t\n )\n }));\n }\n\n removeMediaItem(itemId: string, trackId: string): void {\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t =>\n t.id === trackId\n ? { ...t, items: t.items.filter(i => i.id !== itemId) }\n : t\n ),\n // Deselect if removing selected item\n selectedItemId: s.selectedItemId === itemId ? null : s.selectedItemId\n }));\n }\n\n // Media selection\n selectMediaItem(itemId: string): void {\n this.state.update(s => ({\n ...s,\n selectedItemId: itemId\n }));\n }\n\n deselectMediaItem(): void {\n this.state.update(s => ({\n ...s,\n selectedItemId: null\n }));\n }\n\n isItemSelected(itemId: string): boolean {\n return this.state().selectedItemId === itemId;\n }\n\n readonly MediaType = MediaType;\n\n // Video preview controls\n togglePlayback(): void {\n this.isPlaying.update(playing => !playing);\n }\n\n skipBackward(): void {\n this.state.update(s => ({\n ...s,\n playheadPosition: Math.max(0, s.playheadPosition - 5000)\n }));\n }\n\n skipForward(): void {\n this.state.update(s => ({\n ...s,\n playheadPosition: Math.min(s.totalDuration, s.playheadPosition + 5000)\n }));\n }\n\n // Duration editor methods\n openDurationEditor(): void {\n this.editedDuration = this.state().totalDuration / 1000;\n this.showDurationEditor.set(true);\n }\n\n closeDurationEditor(): void {\n this.showDurationEditor.set(false);\n }\n\n onDurationInputChange(event: Event): void {\n const input = event.target as HTMLInputElement;\n const value = parseFloat(input.value);\n if (!isNaN(value) && value > 0) {\n this.editedDuration = value;\n }\n }\n\n saveDuration(): void {\n const newDurationMs = Math.max(1000, this.editedDuration * 1000); // At least 1 second\n this.state.update(s => ({\n ...s,\n totalDuration: newDurationMs,\n // Ensure playhead doesn't exceed new duration\n playheadPosition: Math.min(s.playheadPosition, newDurationMs)\n }));\n this.closeDurationEditor();\n }\n\n // Media library methods\n openMediaLibrary(trackId: string): void {\n this.mediaLibraryTargetTrackId = trackId;\n this.showMediaLibrary.set(true);\n }\n\n closeMediaLibrary(): void {\n this.showMediaLibrary.set(false);\n this.mediaLibraryTargetTrackId = null;\n }\n\n onMediaSelected(media: MediaLibraryItem): void {\n if (!this.mediaLibraryTargetTrackId) return;\n\n const currentState = this.state();\n const track = currentState.tracks.find(t => t.id === this.mediaLibraryTargetTrackId);\n\n if (!track) return;\n\n const playheadTime = currentState.playheadPosition;\n const totalDuration = currentState.totalDuration;\n\n // Determine the start time for the new item using the service\n const startTime = this.dragDropService.calculateNewItemStartTime(\n playheadTime,\n track.items,\n this.SNAP_PROXIMITY_MS\n );\n\n // Ensure item doesn't exceed totalDuration\n const maxAllowedDuration = totalDuration - startTime;\n const finalDuration = Math.min(media.duration, maxAllowedDuration);\n\n // Verify that the new item doesn't overlap with any existing items\n const testItem: MediaItem = {\n id: 'temp',\n type: media.type,\n startTime,\n duration: finalDuration,\n trackId: this.mediaLibraryTargetTrackId,\n name: '',\n isPlaceholder: false\n };\n\n // Validate and adjust position if needed\n const validatedStartTime = this.dragDropService.validateItemPosition(testItem, track.items);\n\n // Recalculate duration limit if position was adjusted\n const adjus****************ation = totalDuration - validatedStartTime;\n const adjustedDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n\n // Create the final non-overlapping item\n const newItem: MediaItem = {\n id: `item-${Date.now()}`,\n type: media.type,\n startTime: validatedStartTime,\n duration: adjustedDuration,\n trackId: this.mediaLibraryTargetTrackId,\n name: media.name,\n isPlaceholder: false\n };\n\n // Set maxDuration for audio and video\n if (media.type === MediaType.VIDEO) {\n newItem.maxDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n } else if (media.type === MediaType.AUDIO) {\n newItem.maxDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n }\n\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t =>\n t.id === this.mediaLibraryTargetTrackId\n ? { ...t, items: [...t.items, newItem] }\n : t\n )\n }));\n\n // Close the media library after selection\n this.closeMediaLibrary();\n }\n\n /**\n * Trim (split) the selected media item at the playhead position.\n * Creates two separate items from the original media.\n */\n trimSelectedMedia(): void {\n const currentState = this.state();\n const selectedItemId = currentState.selectedItemId;\n\n if (!selectedItemId) {\n return;\n }\n\n // Find the selected item and its track\n let selectedItem: MediaItem | null = null;\n let selectedTrack: Track | null = null;\n\n for (const track of currentState.tracks) {\n const item = track.items.find(i => i.id === selectedItemId);\n if (item) {\n selectedItem = item;\n selectedTrack = track;\n break;\n }\n }\n\n if (!selectedItem || !selectedTrack) {\n return;\n }\n\n const playheadTime = currentState.playheadPosition;\n const itemStart = selectedItem.startTime;\n const itemEnd = itemStart + selectedItem.duration;\n\n // Check if playhead is within the selected media item\n if (playheadTime <= itemStart || playheadTime >= itemEnd) {\n // Playhead is not within the selected media - show notification\n this.notificationsComponent?.showNotification(\n 'Position the playhead within the selected media to trim it.',\n 'warning'\n );\n return;\n }\n\n // Ensure both parts will have at least MIN_ITEM_DURATION\n const firstPartDuration = playheadTime - itemStart;\n const secondPartDuration = itemEnd - playheadTime;\n\n if (firstPartDuration < this.MIN_ITEM_DURATION || secondPartDuration < this.MIN_ITEM_DURATION) {\n this.notificationsComponent?.showNotification(\n 'Cannot trim: resulting parts would be too short.',\n 'warning'\n );\n return;\n }\n\n // Calculate mediaStartTime adjustments\n const origi************tTime = selectedItem.mediaStartTime || 0;\n const secon**************tTime = origi************tTime + firstPartDuration;\n\n // Create two new items from the original\n const firstPart: MediaItem = {\n ...selectedItem,\n id: `item-${Date.now()}-1`,\n duration: firstPartDuration\n // mediaStartTime stays the same for first part\n };\n\n const secondPart: MediaItem = {\n ...selectedItem,\n id: `item-${Date.now()}-2`,\n startTime: playheadTime,\n duration: secondPartDuration,\n mediaStartTime: secondPartMediaStartTime\n };\n\n // Update the state: remove original, add two new parts\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t => {\n if (t.id === selectedTrack!.id) {\n return {\n ...t,\n items: [\n ...t.items.filter(i => i.id !== selectedItemId),\n firstPart,\n secondPart\n ]\n };\n }\n return t;\n }),\n // Deselect after trimming\n selectedItemId: null\n }));\n\n this.notificationsComponent?.showNotification(\n 'Media trimmed successfully.',\n 'success'\n );\n }\n\n /**\n * Copy the selected media item to the clipboard.\n * Stores a copy of the item and the track it was copied from.\n */\n copySelectedMedia(): void {\n const currentState = this.state();\n const selectedItemId = currentState.selectedItemId;\n\n if (!selectedItemId) {\n return;\n }\n\n // Find the selected item and its track\n let selectedItem: MediaItem | null = null;\n let selectedTrackId: string | null = null;\n\n for (const track of currentState.tracks) {\n const item = track.items.find(i => i.id === selectedItemId);\n if (item) {\n selectedItem = item;\n selectedTrackId = track.id;\n break;\n }\n }\n\n if (!selectedItem || !selectedTrackId) {\n return;\n }\n\n // Store a copy of the item in clipboard\n this.clipboardItem.set({ ...selectedItem });\n this.clipboardSourceTrackId.set(selectedTrackId);\n\n this.notificationsComponent?.showNotification(\n 'Media copied to clipboard.',\n 'success'\n );\n }\n\n /**\n * Paste the clipboard media item at the playhead position.\n * Pastes on the same track where the item was copied from.\n * If there's no space at playhead position, finds the next available slot.\n */\n pasteMedia(): void {\n const copiedItem = this.clipboardItem();\n const sourceTrackId = this.clipboardSourceTrackId();\n\n if (!copiedItem || !sourceTrackId) {\n return;\n }\n\n const currentState = this.state();\n const playheadTime = currentState.playheadPosition;\n const totalDuration = currentState.totalDuration;\n\n // Find the source track\n let targetTrack = currentState.tracks.find(t => t.id === sourceTrackId);\n\n // If source track no longer exists, use the first track\n if (!targetTrack) {\n targetTrack = currentState.tracks[0];\n if (!targetTrack) {\n this.notificationsComponent?.showNotification(\n 'No tracks available to paste media.',\n 'error'\n );\n return;\n }\n }\n\n const itemDuration = copiedItem.duration;\n\n // Try to find a valid position starting from playhead\n const pastePosition = this.findPastePosition(\n playheadTime,\n itemDuration,\n targetTrack.items,\n totalDuration\n );\n\n if (pastePosition === null) {\n this.notificationsComponent?.showNotification(\n 'No space available to paste media on this track.',\n 'warning'\n );\n return;\n }\n\n // Create a new item with a new ID\n const newItem: MediaItem = {\n ...copiedItem,\n id: `item-${Date.now()}`,\n startTime: pastePosition,\n trackId: targetTrack.id\n };\n\n // Add the new item to the track\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t =>\n t.id === targetTrack!.id\n ? { ...t, items: [...t.items, newItem] }\n : t\n )\n }));\n\n this.notificationsComponent?.showNotification(\n 'Media pasted successfully.',\n 'success'\n );\n }\n\n /**\n * Find a valid position to paste media item.\n * First tries at the playhead position, then finds the next available gap.\n */\n private findPastePosition(\n preferredPosition: number,\n duration: number,\n existingItems: MediaItem[],\n totalDuration: number\n ): number | null {\n // Check if we can fit at the preferred position (playhead)\n if (this.canFitAtPosition(preferredPosition, duration, existingItems, totalDuration)) {\n return preferredPosition;\n }\n\n // Sort existing items by start time\n const sortedItems = [...existingItems].sort((a, b) => a.startTime - b.startTime);\n\n // Find all gaps on the track and try to place the item\n const gaps = this.dragDropService.findAllGaps(sortedItems);\n\n // First, try to find a gap that starts at or after the playhead\n for (const gap of gaps) {\n // Calculate actual gap size (considering totalDuration for infinite gaps)\n const effectiveGapEnd = gap.gapEnd === Infinity ? totalDuration : gap.gapEnd;\n const gapSize = effectiveGapEnd - gap.gapStart;\n\n if (gap.gapStart >= preferredPosition && gapSize >= duration) {\n return gap.gapStart;\n }\n }\n\n // If no gap after playhead, try any gap that can fit the item\n for (const gap of gaps) {\n // Calculate actual gap size (considering totalDuration for infinite gaps)\n const effectiveGapEnd = gap.gapEnd === Infinity ? totalDuration : gap.gapEnd;\n const gapSize = effectiveGapEnd - gap.gapStart;\n\n if (gapSize >= duration) {\n return gap.gapStart;\n }\n }\n\n // No suitable position found\n return null;\n }\n\n /**\n * Check if an item can fit at a specific position without overlapping.\n */\n private canFitAtPosition(\n position: number,\n duration: number,\n existingItems: MediaItem[],\n totalDuration: number\n ): boolean {\n // Check bounds\n if (position < 0 || position + duration > totalDuration) {\n return false;\n }\n\n // Check for overlaps with existing items\n const endPosition = position + duration;\n for (const item of existingItems) {\n const itemEnd = item.startTime + item.duration;\n // Check if there's an overlap\n if (position < itemEnd && endPosition > item.startTime) {\n return false;\n }\n }\n\n return true;\n }\n}\n", | |
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| "lines": [ | |
| "-import { Component, signal, computed, ViewChild, ElementRef } from '@angular/core';", | |
| "+import { Component, signal, computed, ViewChild, ElementRef, AfterViewInit, OnDestroy, effect } from '@angular/core';", | |
| " import { CommonModule } from '@angular/common';", | |
| " import { MediaType, MediaItem, Track, TimelineState } from '../../models/timeline.models';", | |
| " import { MediaLibraryComponent, MediaLibraryItem } from '../media-library/media-library.component';", | |
| " import { Media***********onent } from '../media-toolbar/media-toolbar.component';", | |
| " import { Notif************onent } from '../notifications/notifications.component';", | |
| " import { Timel*************rvice } from '../../services/timeline-drag-drop.service';", | |
| "+import { PlaybackService } from '../../services/playback.service';", | |
| " ", | |
| " @Component({", | |
| " selector: 'app-timeline'," | |
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| "old_string": "export class TimelineComponent {\n // Zoom levels: pixels per second\n private readonly MIN_ZOOM = 10;\n private readonly MAX_ZOOM = 200;\n private readonly ZOOM_STEP = 20;\n readonly TRACK_HEADER_WIDTH = 150; // Width of track header in pixels\n private readonly SNAP_PROXIMITY_MS = 500; // Snap to item if playhead is within 500ms\n private readonly MIN_ITEM_DURATION = 100; // Minimum item duration in milliseconds\n\n // View references\n @ViewChild('timelineRuler') timelineRuler?: ElementRef<HTMLElement>;\n @ViewChild('notifications') notificationsComponent?: NotificationsComponent;", | |
| "new_string": "export class TimelineComponent implements AfterViewInit, OnDestroy {\n // Zoom levels: pixels per second\n private readonly MIN_ZOOM = 10;\n private readonly MAX_ZOOM = 200;\n private readonly ZOOM_STEP = 20;\n readonly TRACK_HEADER_WIDTH = 150; // Width of track header in pixels\n private readonly SNAP_PROXIMITY_MS = 500; // Snap to item if playhead is within 500ms\n private readonly MIN_ITEM_DURATION = 100; // Minimum item duration in milliseconds\n\n // Canvas dimensions for preview\n readonly PREVIEW_WIDTH = 640;\n readonly PREVIEW_HEIGHT = 360;\n\n // View references\n @ViewChild('timelineRuler') timelineRuler?: ElementRef<HTMLElement>;\n @ViewChild('notifications') notificationsComponent?: NotificationsComponent;\n @ViewChild('previewCanvas') previewCanvas?: ElementRef<HTMLCanvasElement>;" | |
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| "content": "The file /tmp/gh-issue-solver-1764930855025/video-timeline/src/app/components/timeline/timeline.component.ts has been updated. Here's the result of running `cat -n` on a snippet of the edited file:\n 13→ imports: [CommonModule, MediaLibraryComponent, MediaToolbarComponent, NotificationsComponent],\n 14→ templateUrl: './timeline.component.html',\n 15→ styleUrl: './timeline.component.css'\n 16→})\n 17→export class TimelineComponent implements AfterViewInit, OnDestroy {\n 18→ // Zoom levels: pixels per second\n 19→ private readonly MIN_ZOOM = 10;\n 20→ private readonly MAX_ZOOM = 200;\n 21→ private readonly ZOOM_STEP = 20;\n 22→ readonly TRACK_HEADER_WIDTH = 150; // Width of track header in pixels\n 23→ private readonly SNAP_PROXIMITY_MS = 500; // Snap to item if playhead is within 500ms\n 24→ private readonly MIN_ITEM_DURATION = 100; // Minimum item duration in milliseconds\n 25→\n 26→ // Canvas dimensions for preview\n 27→ readonly PREVIEW_WIDTH = 640;\n 28→ readonly PREVIEW_HEIGHT = 360;\n 29→\n 30→ // View references\n 31→ @ViewChild('timelineRuler') timelineRuler?: ElementRef<HTMLElement>;\n 32→ @ViewChild('notifications') notificationsComponent?: NotificationsComponent;\n 33→ @ViewChild('previewCanvas') previewCanvas?: ElementRef<HTMLCanvasElement>;\n 34→\n 35→ // Timeline state\n 36→ readonly state = signal<TimelineState>({\n 37→ tracks: [" | |
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| "oldString": "export class TimelineComponent {\n // Zoom levels: pixels per second\n private readonly MIN_ZOOM = 10;\n private readonly MAX_ZOOM = 200;\n private readonly ZOOM_STEP = 20;\n readonly TRACK_HEADER_WIDTH = 150; // Width of track header in pixels\n private readonly SNAP_PROXIMITY_MS = 500; // Snap to item if playhead is within 500ms\n private readonly MIN_ITEM_DURATION = 100; // Minimum item duration in milliseconds\n\n // View references\n @ViewChild('timelineRuler') timelineRuler?: ElementRef<HTMLElement>;\n @ViewChild('notifications') notificationsComponent?: NotificationsComponent;", | |
| "newString": "export class TimelineComponent implements AfterViewInit, OnDestroy {\n // Zoom levels: pixels per second\n private readonly MIN_ZOOM = 10;\n private readonly MAX_ZOOM = 200;\n private readonly ZOOM_STEP = 20;\n readonly TRACK_HEADER_WIDTH = 150; // Width of track header in pixels\n private readonly SNAP_PROXIMITY_MS = 500; // Snap to item if playhead is within 500ms\n private readonly MIN_ITEM_DURATION = 100; // Minimum item duration in milliseconds\n\n // Canvas dimensions for preview\n readonly PREVIEW_WIDTH = 640;\n readonly PREVIEW_HEIGHT = 360;\n\n // View references\n @ViewChild('timelineRuler') timelineRuler?: ElementRef<HTMLElement>;\n @ViewChild('notifications') notificationsComponent?: NotificationsComponent;\n @ViewChild('previewCanvas') previewCanvas?: ElementRef<HTMLCanvasElement>;", | |
| "originalFile": "import { Component, signal, computed, ViewChild, ElementRef, AfterViewInit, OnDestroy, effect } from '@angular/core';\nimport { CommonModule } from '@angular/common';\nimport { MediaType, MediaItem, Track, TimelineState } from '../../models/timeline.models';\nimport { MediaLibraryComponent, MediaLibraryItem } from '../media-library/media-library.component';\nimport { Media***********onent } from '../media-toolbar/media-toolbar.component';\nimport { Notif************onent } from '../notifications/notifications.component';\nimport { Timel*************rvice } from '../../services/timeline-drag-drop.service';\nimport { PlaybackService } from '../../services/playback.service';\n\n@Component({\n selector: 'app-timeline',\n standalone: true,\n imports: [CommonModule, MediaLibraryComponent, MediaToolbarComponent, NotificationsComponent],\n templateUrl: './timeline.component.html',\n styleUrl: './timeline.component.css'\n})\nexport class TimelineComponent {\n // Zoom levels: pixels per second\n private readonly MIN_ZOOM = 10;\n private readonly MAX_ZOOM = 200;\n private readonly ZOOM_STEP = 20;\n readonly TRACK_HEADER_WIDTH = 150; // Width of track header in pixels\n private readonly SNAP_PROXIMITY_MS = 500; // Snap to item if playhead is within 500ms\n private readonly MIN_ITEM_DURATION = 100; // Minimum item duration in milliseconds\n\n // View references\n @ViewChild('timelineRuler') timelineRuler?: ElementRef<HTMLElement>;\n @ViewChild('notifications') notificationsComponent?: NotificationsComponent;\n\n // Timeline state\n readonly state = signal<TimelineState>({\n tracks: [\n { id: '1', name: 'Track 1', order: 0, items: [] },\n { id: '2', name: 'Track 2', order: 1, items: [] }\n ],\n playheadPosition: 0,\n zoomLevel: 50, // pixels per second\n totalDuration: 120000, // 120 seconds in milliseconds\n selectedItemId: null\n });\n\n // Computed values\n readonly pixel**********econd = computed(() => {\n return this.state().zoomLevel / 1000;\n });\n\n readonly timelineWidth = computed(() => {\n const state = this.state();\n // Calculate the maximum end time across all tracks\n let maxEndTime = state.totalDuration;\n\n for (const track of state.tracks) {\n for (const item of track.items) {\n const itemEndTime = item.startTime + item.duration;\n if (itemEndTime > maxEndTime) {\n maxEndTime = itemEndTime;\n }\n }\n }\n\n return maxEndTime * this.pixelsPerMillisecond();\n });\n\n readonly timelineLineHeight = computed(() => {\n const state = this.state();\n return state.tracks.length * 60 + 32;\n });\n\n readonly playheadPosition = computed(() => {\n return this.state().playheadPosition * this.pixelsPerMillisecond();\n });\n\n readonly playh************ition = computed(() => {\n return this.playheadPosition() + this.TRACK_HEADER_WIDTH;\n });\n\n // Computed: whether a media item is currently selected\n readonly hasSelectedItem = computed(() => {\n return this.state().selectedItemId !== null;\n });\n\n // Dragging state\n private draggedItem: MediaItem | null = null;\n private draggedItemOriginalTrackId: string | null = null;\n private dragOffsetTime: number = 0; // Offset in milliseconds from item start to cursor position\n private isDraggingPlayhead = false;\n private isDraggingFromRuler = false;\n private resizingItem: { item: MediaItem; edge: 'left' | 'right' } | null = null;\n private mouseDownPosition: { x: number; y: number } | null = null; // Track mouse down position for click detection\n\n // Video preview state\n readonly isPlaying = signal<boolean>(false);\n\n // Duration editor state\n readonly showDurationEditor = signal<boolean>(false);\n private editedDuration: number = 120; // Duration in seconds\n\n // Media library state\n readonly showMediaLibrary = signal<boolean>(false);\n private mediaLibraryTargetTrackId: string | null = null;\n\n // Clipboard state for copy/paste functionality\n private readonly clipboardItem = signal<MediaItem | null>(null);\n private readonly clipb************ackId = signal<string | null>(null);\n\n // Computed: whether a media item is in clipboard\n readonly hasClipboardItem = computed(() => {\n return this.clipboardItem() !== null;\n });\n\n constructor(private dragDropService: TimelineDragDropService) {\n }\n\n // Track management\n addTrack(): void {\n const currentState = this.state();\n const newTrack: Track = {\n id: `track-${Date.now()}`,\n name: `Track ${currentState.tracks.length + 1}`,\n order: currentState.tracks.length,\n items: []\n };\n\n this.state.update(s => ({\n ...s,\n tracks: [...s.tracks, newTrack]\n }));\n }\n\n removeTrack(trackId: string): void {\n const currentState = this.state();\n if (currentState.tracks.length <= 1) {\n return; // Keep at least one track\n }\n\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.filter(t => t.id !== trackId)\n }));\n }\n\n // Zoom controls\n zoomIn(): void {\n this.state.update(s => ({\n ...s,\n zoomLevel: Math.min(s.zoomLevel + this.ZOOM_STEP, this.MAX_ZOOM)\n }));\n }\n\n zoomOut(): void {\n this.state.update(s => ({\n ...s,\n zoomLevel: Math.max(s.zoomLevel - this.ZOOM_STEP, this.MIN_ZOOM)\n }));\n }\n\n // Utility method to extract coordinates from mouse or touch events\n private getEventCoordinates(event: MouseEvent | TouchEvent): { clientX: number; clientY: number } {\n if (event instanceof MouseEvent) {\n return { clientX: event.clientX, clientY: event.clientY };\n } else {\n const touch = event.touches[0] || event.changedTouches[0];\n return { clientX: touch.clientX, clientY: touch.clientY };\n }\n }\n\n // Playhead controls\n onRulerPointerDown(event: MouseEvent | TouchEvent): void {\n event.preventDefault();\n this.isDraggingFromRuler = true;\n\n // Immediately update position on pointer down\n const target = event.currentTarget as HTMLElement;\n const rect = target.getBoundingClientRect();\n const coords = this.getEventCoordinates(event);\n // Calculate position within the ruler element\n // getBoundingClientRect() already accounts for scroll, so we don't add scrollLeft\n const x = coords.clientX - rect.left;\n const newPosition = x / this.pixelsPerMillisecond();\n\n this.state.update(s => ({\n ...s,\n playheadPosition: Math.max(0, Math.min(newPosition, s.totalDuration))\n }));\n }\n\n onPlayheadPointerDown(event: MouseEvent | TouchEvent): void {\n event.preventDefault();\n event.stopPropagation();\n this.isDraggingPlayhead = true;\n }\n\n\n // Media item drag and drop\n onMediaItemPointerDown(event: MouseEvent | TouchEvent, item: MediaItem, track: Track): void {\n const target = event.target as HTMLElement;\n\n // Check if clicking/touching on resize handle\n if (target.classList.contains('resize-handle')) {\n this.resizingItem = {\n item,\n edge: target.classList.contains('resize-handle-left') ? 'left' : 'right'\n };\n event.preventDefault();\n return;\n }\n\n const coords = this.getEventCoordinates(event);\n this.mouseDownPosition = { x: coords.clientX, y: coords.clientY };\n\n const mediaItemElement = event.currentTarget as HTMLElement;\n const rect = mediaItemElement.getBoundingClientRect();\n const clickX = coords.clientX - rect.left;\n\n // Convert pixel offset to time offset\n this.dragOffsetTime = clickX / this.pixelsPerMillisecond();\n\n this.draggedItem = item;\n this.draggedItemOriginalTrackId = track.id;\n event.preventDefault();\n }\n\n onTrackPointerDown(event: MouseEvent | TouchEvent): void {\n // Deselect when clicking/touching track background (not on media item)\n const target = event.target as HTMLElement;\n if (target.classList.contains('track')) {\n this.deselectMediaItem();\n }\n }\n\n onTrackPointerMove(event: MouseEvent | TouchEvent, track: Track): void {\n if (this.resizingItem) {\n this.handleResize(event, track);\n return;\n }\n event.preventDefault();\n event.stopPropagation();\n\n if (!this.draggedItem) return;\n\n const coords = this.getEventCoordinates(event);\n const target = event.currentTarget as HTMLElement;\n const rect = target.getBoundingClientRect();\n const x = coords.clientX - rect.left;\n const requestedStartTime = Math.max(0, x / this.pixelsPerMillisecond() - this.dragOffsetTime);\n\n this.state.update(s => {\n const updatedTracks = s.tracks.map(t => {\n if (t.id === track.id) {\n // Get all items except the dragged one for collision detection\n const otherItems = t.items.filter(i => i.id !== this.draggedItem!.id);\n\n // Fix for issue #81: Find snap targets (playhead and items on all tracks)\n const snapTargets = this.dragDropService.findSnapTargets(\n this.draggedItem!.id,\n s.tracks,\n s.playheadPosition\n );\n\n // Calculate valid position and duration considering collisions, gap fitting, and snapping\n const validPosition = this.dragDropService.getValidDragPosition(\n this.draggedItem!,\n requestedStartTime,\n otherItems,\n s.totalDuration,\n snapTargets\n );\n\n // Check if item already exists in this track\n const itemExists = t.items.some(i => i.id === this.draggedItem!.id);\n\n if (itemExists) {\n // Update position and duration in current track\n return {\n ...t,\n items: t.items.map(i =>\n i.id === this.draggedItem!.id\n ? {\n ...i,\n startTime: validPosition.startTime,\n duration: validPosition.duration,\n trackId: track.id\n }\n : i\n )\n };\n } else {\n // Add to new track with adjusted position and duration\n return {\n ...t,\n items: [\n ...otherItems,\n {\n ...this.draggedItem!,\n startTime: validPosition.startTime,\n duration: validPosition.duration,\n trackId: track.id\n }\n ]\n };\n }\n } else if (t.id === this.draggedItemOriginalTrackId && t.id !== track.id) {\n // Remove from original track only if moving to different track\n return {\n ...t,\n items: t.items.filter(i => i.id !== this.draggedItem!.id)\n };\n }\n return t;\n });\n\n // Update the original track ID to current track for smooth dragging within same track\n this.draggedItemOriginalTrackId = track.id;\n\n return { ...s, tracks: updatedTracks };\n });\n }\n\n private handleResize(event: MouseEvent | TouchEvent, track: Track): void {\n if (!this.resizingItem) return;\n\n const coords = this.getEventCoordinates(event);\n const target = event.currentTarget as HTMLElement;\n const rect = target.getBoundingClientRect();\n // Fix for issue #83: getBoundingClientRect() returns viewport-relative coordinates,\n // and coords.clientX is also viewport-relative, so we don't need to add scrollLeft\n const x = coords.clientX - rect.left;\n const timeAtCursor = x / this.pixelsPerMillisecond();\n\n this.state.update(s => {\n // Fix for issue #87: Find snap targets for resize operations\n const snapTargets = this.dragDropService.findSnapTargets(\n this.resizingItem!.item.id,\n s.tracks,\n s.playheadPosition\n );\n\n const updatedTracks = s.tracks.map(t => {\n if (t.id === track.id) {\n // Get resize bounds considering adjacent items\n const bounds = this.dragDropService.getResizeBounds(\n this.resizingItem!.item,\n t.items,\n this.resizingItem!.edge,\n s.totalDuration\n );\n\n return {\n ...t,\n items: t.items.map(i => {\n if (i.id === this.resizingItem!.item.id) {\n if (this.resizingItem!.edge === 'left') {\n // Fix for issue #89: Handle mediaStartTime when resizing from left\n // Apply snapping to left edge (start time)\n let newStartTime = Math.max(\n bounds.minTime,\n Math.min(timeAtCursor, bounds.maxTime)\n );\n\n // Apply snapping if within snap distance\n let minDistance = this.dragDropService.SNAP_DISTANCE_MS;\n for (const target of snapTargets) {\n const distance = Math.abs(newStartTime - target);\n if (distance < minDistance) {\n minDistance = distance;\n // Only snap if within bounds\n if (target >= bounds.minTime && target <= bounds.maxTime) {\n newStartTime = target;\n }\n }\n }\n\n // Calculate how much the timeline position is changing\n const deltaTime = newStartTime - i.startTime;\n const newDuration = i.duration - deltaTime;\n\n // Update media start time (trimming from source media)\n const curre***********tTime = i.mediaStartTime || 0;\n const newMediaStartTime = curre***********tTime + deltaTime;\n\n // Check if we're trying to extend beyond the start of source media\n if (newMediaStartTime < 0) {\n // Can only extend left by curre***********tTime amount\n const maxExtension = currentMediaStartTime;\n const finalStartTime = i.startTime - maxExtension;\n const finalDuration = i.duration + maxExtension;\n\n // Ensure we don't exceed maxDuration\n if (i.maxDuration && finalDuration > i.maxDuration) {\n return {\n ...i,\n startTime: finalStartTime + (finalDuration - i.maxDuration),\n duration: i.maxDuration,\n mediaStartTime: 0\n };\n }\n\n return {\n ...i,\n startTime: finalStartTime,\n duration: finalDuration,\n mediaStartTime: 0\n };\n }\n\n // Ensure media end doesn't exceed maxDuration\n if (i.maxDuration && newMediaStartTime + newDuration > i.maxDuration) {\n const maxAllowedDuration = i.maxDuration - newMediaStartTime;\n return {\n ...i,\n startTime: i.startTime + (i.duration - maxAllowedDuration),\n duration: maxAllowedDuration,\n mediaStartTime: newMediaStartTime\n };\n }\n\n return {\n ...i,\n startTime: newStartTime,\n duration: newDuration,\n mediaStartTime: newMediaStartTime\n };\n } else {\n // Fix for issue #87: Apply snapping to right edge (end time)\n let newEndTime = Math.max(\n bounds.minTime,\n Math.min(timeAtCursor, bounds.maxTime)\n );\n\n // Apply snapping if within snap distance\n let minDistance = this.dragDropService.SNAP_DISTANCE_MS;\n for (const target of snapTargets) {\n const distance = Math.abs(newEndTime - target);\n if (distance < minDistance) {\n minDistance = distance;\n // Only snap if within bounds\n if (target >= bounds.minTime && target <= bounds.maxTime) {\n newEndTime = target;\n }\n }\n }\n\n const newDuration = newEndTime - i.startTime;\n\n // Limit duration by maxDuration if specified\n const limitedDuration = i.maxDuration\n ? Math.min(newDuration, i.maxDuration)\n : newDuration;\n\n return { ...i, duration: limitedDuration };\n }\n }\n return i;\n })\n };\n }\n return t;\n });\n\n return { ...s, tracks: updatedTracks };\n });\n }\n\n onPointerUp(event: MouseEvent | TouchEvent): void {\n // Detect if this was a click/tap (not a drag) on a media item\n if (this.draggedItem && this.mouseDownPosition) {\n const coords = this.getEventCoordinates(event);\n const dx = coords.clientX - this.mouseDownPosition.x;\n const dy = coords.clientY - this.mouseDownPosition.y;\n const distance = Math.sqrt(dx * dx + dy * dy);\n\n // If pointer moved less than 5 pixels, consider it a click/tap\n if (distance < 5) {\n this.selectMediaItem(this.draggedItem.id);\n }\n }\n\n this.draggedItem = null;\n this.draggedItemOriginalTrackId = null;\n this.dragOffsetTime = 0;\n this.isDraggingPlayhead = false;\n this.isDraggingFromRuler = false;\n this.resizingItem = null;\n this.mouseDownPosition = null;\n }\n\n onDocumentPointerMove(event: MouseEvent | TouchEvent): void {\n if (this.isDraggingPlayhead || this.isDraggingFromRuler) {\n // Fix for issue #50: Use ViewChild reference to ensure we use the exact same element as onRulerPointerDown\n if (!this.timelineRuler) {\n return;\n }\n\n const coords = this.getEventCoordinates(event);\n const rulerElement = this.timelineRuler.nativeElement;\n // Use the same calculation as onRulerPointerDown\n // getBoundingClientRect() already accounts for scroll, so we don't add scrollLeft\n const rect = rulerElement.getBoundingClientRect();\n const x = coords.clientX - rect.left;\n const newPosition = x / this.pixelsPerMillisecond();\n\n this.state.update(s => ({\n ...s,\n playheadPosition: Math.max(0, Math.min(newPosition, s.totalDuration))\n }));\n }\n\n // Fix for issue #96: Handle media item dragging and resizing at document level for touch events\n // This allows dragging between tracks on mobile devices\n if (event instanceof TouchEvent) {\n if (this.draggedItem) {\n // Find which track the touch is currently over\n const targetTrack = this.findTrackAtCoordinates(this.getEventCoordinates(event));\n if (targetTrack) {\n // Reuse existing drag logic\n this.onTrackPointerMove(event, targetTrack);\n }\n } else if (this.resizingItem) {\n // Find the track that contains the resizing item\n const targetTrack = this.findTrackContainingItem(this.resizingItem.item.id);\n if (targetTrack) {\n // Reuse existing resize logic\n this.handleResize(event, targetTrack);\n }\n }\n }\n }\n\n // Helper method to find which track is at the given Y coordinate\n private findTrackAtCoordinates(coords: { clientX: number; clientY: number }): Track | null {\n const trackElements = document.querySelectorAll('.track');\n for (const trackElement of Array.from(trackElements)) {\n const rect = trackElement.getBoundingClientRect();\n if (coords.clientY >= rect.top && coords.clientY <= rect.bottom) {\n const trackIndex = Array.from(trackElements).indexOf(trackElement);\n const tracks = this.state().tracks;\n if (trackIndex >= 0 && trackIndex < tracks.length) {\n return tracks[trackIndex];\n }\n }\n }\n return null;\n }\n\n // Helper method to find the track containing a specific item\n private findTrackContainingItem(itemId: string): Track | null {\n const currentState = this.state();\n for (const track of currentState.tracks) {\n if (track.items.some(item => item.id === itemId)) {\n return track;\n }\n }\n return null;\n }\n\n // Helper methods\n getItemStyle(item: MediaItem) {\n return {\n left: `${item.startTime * this.pixelsPerMillisecond()}px`,\n width: `${item.duration * this.pixelsPerMillisecond()}px`\n };\n }\n\n getMediaTypeClass(type: MediaType): string {\n return `media-${type}`;\n }\n\n formatTime(milliseconds: number): string {\n const seconds = Math.floor(milliseconds / 1000);\n const minutes = Math.floor(seconds / 60);\n const remainingSeconds = seconds % 60;\n const cs = Math.floor((milliseconds % 1000) / 10);\n return `${minutes}:${remainingSeconds.toString().padStart(2, '0')}.${cs.toString().padStart(2, '0')}`;\n }\n\n /**\n * Calculate appropriate time interval for markers based on zoom level\n * to prevent marker labels from overlapping\n */\n private getMarkerInterval(): number {\n // Minimum spacing between markers in pixels to prevent overlap\n // Enough space for \"0:00.000\" text (about 50-60px)\n const MIN_M***********NG_PX = 60;\n\n // Calculate how much time represents MIN_M***********NG_PX at current zoom\n const pixelsPerMs = this.pixelsPerMillisecond();\n const minTimeSpacing = MIN_M***********NG_PX / pixelsPerMs;\n\n // Define possible intervals (in ms): 100ms, 250ms, 500ms, 1s, 2s, 5s, 10s, 30s, 60s\n const intervals = [100, 250, 500, 1000, 2000, 5000, 10000, 30000, 60000];\n\n // Find the smallest interval that's larger than or equal to minTimeSpacing\n for (const interval of intervals) {\n if (interval >= minTimeSpacing) {\n return interval;\n }\n }\n\n // If even 60s is too small, use larger intervals\n return Math.ceil(minTimeSpacing / 60000) * 60000;\n }\n\n getTimeMarkers(): { position: number; label: string }[] {\n const markers: { position: number; label: string }[] = [];\n const stepMs = this.getMarkerInterval(); // Dynamic interval based on zoom level\n\n // Fix for issue #85: Do not show the last time mark at totalDuration\n // to prevent container expansion from the text label\n for (let time = 0; time < this.state().totalDuration; time += stepMs) {\n markers.push({\n position: time * this.pixelsPerMillisecond(),\n label: this.formatTime(time)\n });\n }\n\n return markers;\n }\n\n // Add placeholder media item\n addMediaItem(type: MediaType, trackId: string): void {\n const currentState = this.state();\n const track = currentState.tracks.find(t => t.id === trackId);\n\n if (!track) return;\n\n const playheadTime = currentState.playheadPosition;\n const totalDuration = currentState.totalDuration;\n const newItemDuration = type === MediaType.IMAGE ? 5000 : 3000;\n\n // Determine the start time for the new item using the service\n const startTime = this.dragDropService.calculateNewItemStartTime(\n playheadTime,\n track.items,\n this.SNAP_PROXIMITY_MS\n );\n\n // Fix for issue #48: Ensure new item doesn't exceed totalDuration\n const maxAllowedDuration = totalDuration - startTime;\n const finalDuration = Math.min(newItemDuration, maxAllowedDuration);\n\n // Fix for issue #64: Verify that the new item doesn't overlap with any existing items\n const testItem: MediaItem = {\n id: 'temp',\n type,\n startTime,\n duration: finalDuration,\n trackId,\n name: '',\n isPlaceholder: true\n };\n\n // Validate and adjust position if needed\n const validatedStartTime = this.dragDropService.validateItemPosition(testItem, track.items);\n\n // Recalculate duration limit if position was adjusted\n const adjus****************ation = totalDuration - validatedStartTime;\n const adjustedDuration = Math.min(newItemDuration, adjustedMaxAllowedDuration);\n\n // Create the final non-overlapping item\n const newItem: MediaItem = {\n id: `item-${Date.now()}`,\n type,\n startTime: validatedStartTime,\n duration: adjustedDuration,\n trackId,\n name: `${type} placeholder`,\n isPlaceholder: true\n };\n\n // Set maxDuration for audio and video placeholders\n if (type === MediaType.VIDEO) {\n newItem.maxDuration = Math.min(10000, adjustedMaxAllowedDuration); // 10 seconds default for video\n } else if (type === MediaType.AUDIO) {\n newItem.maxDuration = Math.min(15000, adjustedMaxAllowedDuration); // 15 seconds default for audio\n }\n\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t =>\n t.id === trackId\n ? { ...t, items: [...t.items, newItem] }\n : t\n )\n }));\n }\n\n removeMediaItem(itemId: string, trackId: string): void {\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t =>\n t.id === trackId\n ? { ...t, items: t.items.filter(i => i.id !== itemId) }\n : t\n ),\n // Deselect if removing selected item\n selectedItemId: s.selectedItemId === itemId ? null : s.selectedItemId\n }));\n }\n\n // Media selection\n selectMediaItem(itemId: string): void {\n this.state.update(s => ({\n ...s,\n selectedItemId: itemId\n }));\n }\n\n deselectMediaItem(): void {\n this.state.update(s => ({\n ...s,\n selectedItemId: null\n }));\n }\n\n isItemSelected(itemId: string): boolean {\n return this.state().selectedItemId === itemId;\n }\n\n readonly MediaType = MediaType;\n\n // Video preview controls\n togglePlayback(): void {\n this.isPlaying.update(playing => !playing);\n }\n\n skipBackward(): void {\n this.state.update(s => ({\n ...s,\n playheadPosition: Math.max(0, s.playheadPosition - 5000)\n }));\n }\n\n skipForward(): void {\n this.state.update(s => ({\n ...s,\n playheadPosition: Math.min(s.totalDuration, s.playheadPosition + 5000)\n }));\n }\n\n // Duration editor methods\n openDurationEditor(): void {\n this.editedDuration = this.state().totalDuration / 1000;\n this.showDurationEditor.set(true);\n }\n\n closeDurationEditor(): void {\n this.showDurationEditor.set(false);\n }\n\n onDurationInputChange(event: Event): void {\n const input = event.target as HTMLInputElement;\n const value = parseFloat(input.value);\n if (!isNaN(value) && value > 0) {\n this.editedDuration = value;\n }\n }\n\n saveDuration(): void {\n const newDurationMs = Math.max(1000, this.editedDuration * 1000); // At least 1 second\n this.state.update(s => ({\n ...s,\n totalDuration: newDurationMs,\n // Ensure playhead doesn't exceed new duration\n playheadPosition: Math.min(s.playheadPosition, newDurationMs)\n }));\n this.closeDurationEditor();\n }\n\n // Media library methods\n openMediaLibrary(trackId: string): void {\n this.mediaLibraryTargetTrackId = trackId;\n this.showMediaLibrary.set(true);\n }\n\n closeMediaLibrary(): void {\n this.showMediaLibrary.set(false);\n this.mediaLibraryTargetTrackId = null;\n }\n\n onMediaSelected(media: MediaLibraryItem): void {\n if (!this.mediaLibraryTargetTrackId) return;\n\n const currentState = this.state();\n const track = currentState.tracks.find(t => t.id === this.mediaLibraryTargetTrackId);\n\n if (!track) return;\n\n const playheadTime = currentState.playheadPosition;\n const totalDuration = currentState.totalDuration;\n\n // Determine the start time for the new item using the service\n const startTime = this.dragDropService.calculateNewItemStartTime(\n playheadTime,\n track.items,\n this.SNAP_PROXIMITY_MS\n );\n\n // Ensure item doesn't exceed totalDuration\n const maxAllowedDuration = totalDuration - startTime;\n const finalDuration = Math.min(media.duration, maxAllowedDuration);\n\n // Verify that the new item doesn't overlap with any existing items\n const testItem: MediaItem = {\n id: 'temp',\n type: media.type,\n startTime,\n duration: finalDuration,\n trackId: this.mediaLibraryTargetTrackId,\n name: '',\n isPlaceholder: false\n };\n\n // Validate and adjust position if needed\n const validatedStartTime = this.dragDropService.validateItemPosition(testItem, track.items);\n\n // Recalculate duration limit if position was adjusted\n const adjus****************ation = totalDuration - validatedStartTime;\n const adjustedDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n\n // Create the final non-overlapping item\n const newItem: MediaItem = {\n id: `item-${Date.now()}`,\n type: media.type,\n startTime: validatedStartTime,\n duration: adjustedDuration,\n trackId: this.mediaLibraryTargetTrackId,\n name: media.name,\n isPlaceholder: false\n };\n\n // Set maxDuration for audio and video\n if (media.type === MediaType.VIDEO) {\n newItem.maxDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n } else if (media.type === MediaType.AUDIO) {\n newItem.maxDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n }\n\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t =>\n t.id === this.mediaLibraryTargetTrackId\n ? { ...t, items: [...t.items, newItem] }\n : t\n )\n }));\n\n // Close the media library after selection\n this.closeMediaLibrary();\n }\n\n /**\n * Trim (split) the selected media item at the playhead position.\n * Creates two separate items from the original media.\n */\n trimSelectedMedia(): void {\n const currentState = this.state();\n const selectedItemId = currentState.selectedItemId;\n\n if (!selectedItemId) {\n return;\n }\n\n // Find the selected item and its track\n let selectedItem: MediaItem | null = null;\n let selectedTrack: Track | null = null;\n\n for (const track of currentState.tracks) {\n const item = track.items.find(i => i.id === selectedItemId);\n if (item) {\n selectedItem = item;\n selectedTrack = track;\n break;\n }\n }\n\n if (!selectedItem || !selectedTrack) {\n return;\n }\n\n const playheadTime = currentState.playheadPosition;\n const itemStart = selectedItem.startTime;\n const itemEnd = itemStart + selectedItem.duration;\n\n // Check if playhead is within the selected media item\n if (playheadTime <= itemStart || playheadTime >= itemEnd) {\n // Playhead is not within the selected media - show notification\n this.notificationsComponent?.showNotification(\n 'Position the playhead within the selected media to trim it.',\n 'warning'\n );\n return;\n }\n\n // Ensure both parts will have at least MIN_ITEM_DURATION\n const firstPartDuration = playheadTime - itemStart;\n const secondPartDuration = itemEnd - playheadTime;\n\n if (firstPartDuration < this.MIN_ITEM_DURATION || secondPartDuration < this.MIN_ITEM_DURATION) {\n this.notificationsComponent?.showNotification(\n 'Cannot trim: resulting parts would be too short.',\n 'warning'\n );\n return;\n }\n\n // Calculate mediaStartTime adjustments\n const origi************tTime = selectedItem.mediaStartTime || 0;\n const secon**************tTime = origi************tTime + firstPartDuration;\n\n // Create two new items from the original\n const firstPart: MediaItem = {\n ...selectedItem,\n id: `item-${Date.now()}-1`,\n duration: firstPartDuration\n // mediaStartTime stays the same for first part\n };\n\n const secondPart: MediaItem = {\n ...selectedItem,\n id: `item-${Date.now()}-2`,\n startTime: playheadTime,\n duration: secondPartDuration,\n mediaStartTime: secondPartMediaStartTime\n };\n\n // Update the state: remove original, add two new parts\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t => {\n if (t.id === selectedTrack!.id) {\n return {\n ...t,\n items: [\n ...t.items.filter(i => i.id !== selectedItemId),\n firstPart,\n secondPart\n ]\n };\n }\n return t;\n }),\n // Deselect after trimming\n selectedItemId: null\n }));\n\n this.notificationsComponent?.showNotification(\n 'Media trimmed successfully.',\n 'success'\n );\n }\n\n /**\n * Copy the selected media item to the clipboard.\n * Stores a copy of the item and the track it was copied from.\n */\n copySelectedMedia(): void {\n const currentState = this.state();\n const selectedItemId = currentState.selectedItemId;\n\n if (!selectedItemId) {\n return;\n }\n\n // Find the selected item and its track\n let selectedItem: MediaItem | null = null;\n let selectedTrackId: string | null = null;\n\n for (const track of currentState.tracks) {\n const item = track.items.find(i => i.id === selectedItemId);\n if (item) {\n selectedItem = item;\n selectedTrackId = track.id;\n break;\n }\n }\n\n if (!selectedItem || !selectedTrackId) {\n return;\n }\n\n // Store a copy of the item in clipboard\n this.clipboardItem.set({ ...selectedItem });\n this.clipboardSourceTrackId.set(selectedTrackId);\n\n this.notificationsComponent?.showNotification(\n 'Media copied to clipboard.',\n 'success'\n );\n }\n\n /**\n * Paste the clipboard media item at the playhead position.\n * Pastes on the same track where the item was copied from.\n * If there's no space at playhead position, finds the next available slot.\n */\n pasteMedia(): void {\n const copiedItem = this.clipboardItem();\n const sourceTrackId = this.clipboardSourceTrackId();\n\n if (!copiedItem || !sourceTrackId) {\n return;\n }\n\n const currentState = this.state();\n const playheadTime = currentState.playheadPosition;\n const totalDuration = currentState.totalDuration;\n\n // Find the source track\n let targetTrack = currentState.tracks.find(t => t.id === sourceTrackId);\n\n // If source track no longer exists, use the first track\n if (!targetTrack) {\n targetTrack = currentState.tracks[0];\n if (!targetTrack) {\n this.notificationsComponent?.showNotification(\n 'No tracks available to paste media.',\n 'error'\n );\n return;\n }\n }\n\n const itemDuration = copiedItem.duration;\n\n // Try to find a valid position starting from playhead\n const pastePosition = this.findPastePosition(\n playheadTime,\n itemDuration,\n targetTrack.items,\n totalDuration\n );\n\n if (pastePosition === null) {\n this.notificationsComponent?.showNotification(\n 'No space available to paste media on this track.',\n 'warning'\n );\n return;\n }\n\n // Create a new item with a new ID\n const newItem: MediaItem = {\n ...copiedItem,\n id: `item-${Date.now()}`,\n startTime: pastePosition,\n trackId: targetTrack.id\n };\n\n // Add the new item to the track\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t =>\n t.id === targetTrack!.id\n ? { ...t, items: [...t.items, newItem] }\n : t\n )\n }));\n\n this.notificationsComponent?.showNotification(\n 'Media pasted successfully.',\n 'success'\n );\n }\n\n /**\n * Find a valid position to paste media item.\n * First tries at the playhead position, then finds the next available gap.\n */\n private findPastePosition(\n preferredPosition: number,\n duration: number,\n existingItems: MediaItem[],\n totalDuration: number\n ): number | null {\n // Check if we can fit at the preferred position (playhead)\n if (this.canFitAtPosition(preferredPosition, duration, existingItems, totalDuration)) {\n return preferredPosition;\n }\n\n // Sort existing items by start time\n const sortedItems = [...existingItems].sort((a, b) => a.startTime - b.startTime);\n\n // Find all gaps on the track and try to place the item\n const gaps = this.dragDropService.findAllGaps(sortedItems);\n\n // First, try to find a gap that starts at or after the playhead\n for (const gap of gaps) {\n // Calculate actual gap size (considering totalDuration for infinite gaps)\n const effectiveGapEnd = gap.gapEnd === Infinity ? totalDuration : gap.gapEnd;\n const gapSize = effectiveGapEnd - gap.gapStart;\n\n if (gap.gapStart >= preferredPosition && gapSize >= duration) {\n return gap.gapStart;\n }\n }\n\n // If no gap after playhead, try any gap that can fit the item\n for (const gap of gaps) {\n // Calculate actual gap size (considering totalDuration for infinite gaps)\n const effectiveGapEnd = gap.gapEnd === Infinity ? totalDuration : gap.gapEnd;\n const gapSize = effectiveGapEnd - gap.gapStart;\n\n if (gapSize >= duration) {\n return gap.gapStart;\n }\n }\n\n // No suitable position found\n return null;\n }\n\n /**\n * Check if an item can fit at a specific position without overlapping.\n */\n private canFitAtPosition(\n position: number,\n duration: number,\n existingItems: MediaItem[],\n totalDuration: number\n ): boolean {\n // Check bounds\n if (position < 0 || position + duration > totalDuration) {\n return false;\n }\n\n // Check for overlaps with existing items\n const endPosition = position + duration;\n for (const item of existingItems) {\n const itemEnd = item.startTime + item.duration;\n // Check if there's an overlap\n if (position < itemEnd && endPosition > item.startTime) {\n return false;\n }\n }\n\n return true;\n }\n}\n", | |
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| " templateUrl: './timeline.component.html',", | |
| " styleUrl: './timeline.component.css'", | |
| " })", | |
| "-export class TimelineComponent {", | |
| "+export class TimelineComponent implements AfterViewInit, OnDestroy {", | |
| " // Zoom levels: pixels per second", | |
| " private readonly MIN_ZOOM = 10;", | |
| " private readonly MAX_ZOOM = 200;" | |
| ] | |
| }, | |
| { | |
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| " private readonly SNAP_PROXIMITY_MS = 500; // Snap to item if playhead is within 500ms", | |
| " private readonly MIN_ITEM_DURATION = 100; // Minimum item duration in milliseconds", | |
| " ", | |
| "+ // Canvas dimensions for preview", | |
| "+ readonly PREVIEW_WIDTH = 640;", | |
| "+ readonly PREVIEW_HEIGHT = 360;", | |
| "+", | |
| " // View references", | |
| " @ViewChild('timelineRuler') timelineRuler?: ElementRef<HTMLElement>;", | |
| " @ViewChild('notifications') notificationsComponent?: NotificationsComponent;", | |
| "+ @ViewChild('previewCanvas') previewCanvas?: ElementRef<HTMLCanvasElement>;", | |
| " ", | |
| " // Timeline state", | |
| " readonly state = signal<TimelineState>({" | |
| ] | |
| } | |
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| "type": "text", | |
| "text": "Now update the constructor and add lifecycle hooks:" | |
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| [2025-12-05T10:38:52.712Z] [INFO] { | |
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| "model": "claude-opus-4-5-20251101", | |
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| { | |
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| "old_string": " // Computed: whether a media item is in clipboard\n readonly hasClipboardItem = computed(() => {\n return this.clipboardItem() !== null;\n });\n\n constructor(private dragDropService: TimelineDragDropService) {\n }", | |
| "new_string": " // Computed: whether a media item is in clipboard\n readonly hasClipboardItem = computed(() => {\n return this.clipboardItem() !== null;\n });\n\n // Render loop ID for cleanup\n private renderLoopId: number | null = null;\n\n constructor(\n private dragDropService: TimelineDragDropService,\n public playbackService: PlaybackService\n ) {\n // Effect to sync playhead position from PlaybackService during playback\n effect(() => {\n if (this.playbackService.isPlaying()) {\n const position = this.playbackService.playheadPosition();\n this.state.update(s => ({\n ...s,\n playheadPosition: position\n }));\n }\n });\n }\n\n ngAfterViewInit(): void {\n // Initialize canvas for preview rendering\n if (this.previewCanvas) {\n this.playbackService.setCanvas(this.previewCanvas.nativeElement);\n }\n\n // Start continuous render loop for preview (renders current frame even when paused)\n this.startRenderLoop();\n }\n\n ngOnDestroy(): void {\n // Clean up render loop\n if (this.renderLoopId !== null) {\n cancelAnimationFrame(this.renderLoopId);\n this.renderLoopId = null;\n }\n\n // Stop playback\n this.playbackService.stop();\n }\n\n /**\n * Continuous render loop for preview canvas.\n * Keeps rendering even when paused so seeking updates the preview.\n */\n private startRenderLoop(): void {\n const render = () => {\n // Only render if we have active media and are not playing\n // (PlaybackService handles rendering during playback)\n if (!this.playbackService.isPlaying()) {\n this.playbackService.renderCurrentFrame();\n }\n this.renderLoopId = requestAnimationFrame(render);\n };\n this.renderLoopId = requestAnimationFrame(render);\n }" | |
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| [2025-12-05T10:38:53.247Z] [INFO] { | |
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| "content": "The file /tmp/gh-issue-solver-1764930855025/video-timeline/src/app/components/timeline/timeline.component.ts has been updated. Here's the result of running `cat -n` on a snippet of the edited file:\n 107→ // Clipboard state for copy/paste functionality\n 108→ private readonly clipboardItem = signal<MediaItem | null>(null);\n 109→ private readonly clipb************ackId = signal<string | null>(null);\n 110→\n 111→ // Computed: whether a media item is in clipboard\n 112→ readonly hasClipboardItem = computed(() => {\n 113→ return this.clipboardItem() !== null;\n 114→ });\n 115→\n 116→ // Render loop ID for cleanup\n 117→ private renderLoopId: number | null = null;\n 118→\n 119→ constructor(\n 120→ private dragDropService: TimelineDragDropService,\n 121→ public playbackService: PlaybackService\n 122→ ) {\n 123→ // Effect to sync playhead position from PlaybackService during playback\n 124→ effect(() => {\n 125→ if (this.playbackService.isPlaying()) {\n 126→ const position = this.playbackService.playheadPosition();\n 127→ this.state.update(s => ({\n 128→ ...s,\n 129→ playheadPosition: position\n 130→ }));\n 131→ }\n 132→ });\n 133→ }\n 134→\n 135→ ngAfterViewInit(): void {\n 136→ // Initialize canvas for preview rendering\n 137→ if (this.previewCanvas) {\n 138→ this.playbackService.setCanvas(this.previewCanvas.nativeElement);\n 139→ }\n 140→\n 141→ // Start continuous render loop for preview (renders current frame even when paused)\n 142→ this.startRenderLoop();\n 143→ }\n 144→\n 145→ ngOnDestroy(): void {\n 146→ // Clean up render loop\n 147→ if (this.renderLoopId !== null) {\n 148→ cancelAnimationFrame(this.renderLoopId);\n 149→ this.renderLoopId = null;\n 150→ }\n 151→\n 152→ // Stop playback\n 153→ this.playbackService.stop();\n 154→ }\n 155→\n 156→ /**\n 157→ * Continuous render loop for preview canvas.\n 158→ * Keeps rendering even when paused so seeking updates the preview.\n 159→ */\n 160→ private startRenderLoop(): void {\n 161→ const render = () => {\n 162→ // Only render if we have active media and are not playing\n 163→ // (PlaybackService handles rendering during playback)\n 164→ if (!this.playbackService.isPlaying()) {\n 165→ this.playbackService.renderCurrentFrame();\n 166→ }\n 167→ this.renderLoopId = requestAnimationFrame(render);\n 168→ };\n 169→ this.renderLoopId = requestAnimationFrame(render);\n 170→ }\n 171→\n 172→ // Track management\n 173→ addTrack(): void {\n 174→ const currentState = this.state();" | |
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| "oldString": " // Computed: whether a media item is in clipboard\n readonly hasClipboardItem = computed(() => {\n return this.clipboardItem() !== null;\n });\n\n constructor(private dragDropService: TimelineDragDropService) {\n }", | |
| "newString": " // Computed: whether a media item is in clipboard\n readonly hasClipboardItem = computed(() => {\n return this.clipboardItem() !== null;\n });\n\n // Render loop ID for cleanup\n private renderLoopId: number | null = null;\n\n constructor(\n private dragDropService: TimelineDragDropService,\n public playbackService: PlaybackService\n ) {\n // Effect to sync playhead position from PlaybackService during playback\n effect(() => {\n if (this.playbackService.isPlaying()) {\n const position = this.playbackService.playheadPosition();\n this.state.update(s => ({\n ...s,\n playheadPosition: position\n }));\n }\n });\n }\n\n ngAfterViewInit(): void {\n // Initialize canvas for preview rendering\n if (this.previewCanvas) {\n this.playbackService.setCanvas(this.previewCanvas.nativeElement);\n }\n\n // Start continuous render loop for preview (renders current frame even when paused)\n this.startRenderLoop();\n }\n\n ngOnDestroy(): void {\n // Clean up render loop\n if (this.renderLoopId !== null) {\n cancelAnimationFrame(this.renderLoopId);\n this.renderLoopId = null;\n }\n\n // Stop playback\n this.playbackService.stop();\n }\n\n /**\n * Continuous render loop for preview canvas.\n * Keeps rendering even when paused so seeking updates the preview.\n */\n private startRenderLoop(): void {\n const render = () => {\n // Only render if we have active media and are not playing\n // (PlaybackService handles rendering during playback)\n if (!this.playbackService.isPlaying()) {\n this.playbackService.renderCurrentFrame();\n }\n this.renderLoopId = requestAnimationFrame(render);\n };\n this.renderLoopId = requestAnimationFrame(render);\n }", | |
| "originalFile": "import { Component, signal, computed, ViewChild, ElementRef, AfterViewInit, OnDestroy, effect } from '@angular/core';\nimport { CommonModule } from '@angular/common';\nimport { MediaType, MediaItem, Track, TimelineState } from '../../models/timeline.models';\nimport { MediaLibraryComponent, MediaLibraryItem } from '../media-library/media-library.component';\nimport { Media***********onent } from '../media-toolbar/media-toolbar.component';\nimport { Notif************onent } from '../notifications/notifications.component';\nimport { Timel*************rvice } from '../../services/timeline-drag-drop.service';\nimport { PlaybackService } from '../../services/playback.service';\n\n@Component({\n selector: 'app-timeline',\n standalone: true,\n imports: [CommonModule, MediaLibraryComponent, MediaToolbarComponent, NotificationsComponent],\n templateUrl: './timeline.component.html',\n styleUrl: './timeline.component.css'\n})\nexport class TimelineComponent implements AfterViewInit, OnDestroy {\n // Zoom levels: pixels per second\n private readonly MIN_ZOOM = 10;\n private readonly MAX_ZOOM = 200;\n private readonly ZOOM_STEP = 20;\n readonly TRACK_HEADER_WIDTH = 150; // Width of track header in pixels\n private readonly SNAP_PROXIMITY_MS = 500; // Snap to item if playhead is within 500ms\n private readonly MIN_ITEM_DURATION = 100; // Minimum item duration in milliseconds\n\n // Canvas dimensions for preview\n readonly PREVIEW_WIDTH = 640;\n readonly PREVIEW_HEIGHT = 360;\n\n // View references\n @ViewChild('timelineRuler') timelineRuler?: ElementRef<HTMLElement>;\n @ViewChild('notifications') notificationsComponent?: NotificationsComponent;\n @ViewChild('previewCanvas') previewCanvas?: ElementRef<HTMLCanvasElement>;\n\n // Timeline state\n readonly state = signal<TimelineState>({\n tracks: [\n { id: '1', name: 'Track 1', order: 0, items: [] },\n { id: '2', name: 'Track 2', order: 1, items: [] }\n ],\n playheadPosition: 0,\n zoomLevel: 50, // pixels per second\n totalDuration: 120000, // 120 seconds in milliseconds\n selectedItemId: null\n });\n\n // Computed values\n readonly pixel**********econd = computed(() => {\n return this.state().zoomLevel / 1000;\n });\n\n readonly timelineWidth = computed(() => {\n const state = this.state();\n // Calculate the maximum end time across all tracks\n let maxEndTime = state.totalDuration;\n\n for (const track of state.tracks) {\n for (const item of track.items) {\n const itemEndTime = item.startTime + item.duration;\n if (itemEndTime > maxEndTime) {\n maxEndTime = itemEndTime;\n }\n }\n }\n\n return maxEndTime * this.pixelsPerMillisecond();\n });\n\n readonly timelineLineHeight = computed(() => {\n const state = this.state();\n return state.tracks.length * 60 + 32;\n });\n\n readonly playheadPosition = computed(() => {\n return this.state().playheadPosition * this.pixelsPerMillisecond();\n });\n\n readonly playh************ition = computed(() => {\n return this.playheadPosition() + this.TRACK_HEADER_WIDTH;\n });\n\n // Computed: whether a media item is currently selected\n readonly hasSelectedItem = computed(() => {\n return this.state().selectedItemId !== null;\n });\n\n // Dragging state\n private draggedItem: MediaItem | null = null;\n private draggedItemOriginalTrackId: string | null = null;\n private dragOffsetTime: number = 0; // Offset in milliseconds from item start to cursor position\n private isDraggingPlayhead = false;\n private isDraggingFromRuler = false;\n private resizingItem: { item: MediaItem; edge: 'left' | 'right' } | null = null;\n private mouseDownPosition: { x: number; y: number } | null = null; // Track mouse down position for click detection\n\n // Video preview state\n readonly isPlaying = signal<boolean>(false);\n\n // Duration editor state\n readonly showDurationEditor = signal<boolean>(false);\n private editedDuration: number = 120; // Duration in seconds\n\n // Media library state\n readonly showMediaLibrary = signal<boolean>(false);\n private mediaLibraryTargetTrackId: string | null = null;\n\n // Clipboard state for copy/paste functionality\n private readonly clipboardItem = signal<MediaItem | null>(null);\n private readonly clipb************ackId = signal<string | null>(null);\n\n // Computed: whether a media item is in clipboard\n readonly hasClipboardItem = computed(() => {\n return this.clipboardItem() !== null;\n });\n\n constructor(private dragDropService: TimelineDragDropService) {\n }\n\n // Track management\n addTrack(): void {\n const currentState = this.state();\n const newTrack: Track = {\n id: `track-${Date.now()}`,\n name: `Track ${currentState.tracks.length + 1}`,\n order: currentState.tracks.length,\n items: []\n };\n\n this.state.update(s => ({\n ...s,\n tracks: [...s.tracks, newTrack]\n }));\n }\n\n removeTrack(trackId: string): void {\n const currentState = this.state();\n if (currentState.tracks.length <= 1) {\n return; // Keep at least one track\n }\n\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.filter(t => t.id !== trackId)\n }));\n }\n\n // Zoom controls\n zoomIn(): void {\n this.state.update(s => ({\n ...s,\n zoomLevel: Math.min(s.zoomLevel + this.ZOOM_STEP, this.MAX_ZOOM)\n }));\n }\n\n zoomOut(): void {\n this.state.update(s => ({\n ...s,\n zoomLevel: Math.max(s.zoomLevel - this.ZOOM_STEP, this.MIN_ZOOM)\n }));\n }\n\n // Utility method to extract coordinates from mouse or touch events\n private getEventCoordinates(event: MouseEvent | TouchEvent): { clientX: number; clientY: number } {\n if (event instanceof MouseEvent) {\n return { clientX: event.clientX, clientY: event.clientY };\n } else {\n const touch = event.touches[0] || event.changedTouches[0];\n return { clientX: touch.clientX, clientY: touch.clientY };\n }\n }\n\n // Playhead controls\n onRulerPointerDown(event: MouseEvent | TouchEvent): void {\n event.preventDefault();\n this.isDraggingFromRuler = true;\n\n // Immediately update position on pointer down\n const target = event.currentTarget as HTMLElement;\n const rect = target.getBoundingClientRect();\n const coords = this.getEventCoordinates(event);\n // Calculate position within the ruler element\n // getBoundingClientRect() already accounts for scroll, so we don't add scrollLeft\n const x = coords.clientX - rect.left;\n const newPosition = x / this.pixelsPerMillisecond();\n\n this.state.update(s => ({\n ...s,\n playheadPosition: Math.max(0, Math.min(newPosition, s.totalDuration))\n }));\n }\n\n onPlayheadPointerDown(event: MouseEvent | TouchEvent): void {\n event.preventDefault();\n event.stopPropagation();\n this.isDraggingPlayhead = true;\n }\n\n\n // Media item drag and drop\n onMediaItemPointerDown(event: MouseEvent | TouchEvent, item: MediaItem, track: Track): void {\n const target = event.target as HTMLElement;\n\n // Check if clicking/touching on resize handle\n if (target.classList.contains('resize-handle')) {\n this.resizingItem = {\n item,\n edge: target.classList.contains('resize-handle-left') ? 'left' : 'right'\n };\n event.preventDefault();\n return;\n }\n\n const coords = this.getEventCoordinates(event);\n this.mouseDownPosition = { x: coords.clientX, y: coords.clientY };\n\n const mediaItemElement = event.currentTarget as HTMLElement;\n const rect = mediaItemElement.getBoundingClientRect();\n const clickX = coords.clientX - rect.left;\n\n // Convert pixel offset to time offset\n this.dragOffsetTime = clickX / this.pixelsPerMillisecond();\n\n this.draggedItem = item;\n this.draggedItemOriginalTrackId = track.id;\n event.preventDefault();\n }\n\n onTrackPointerDown(event: MouseEvent | TouchEvent): void {\n // Deselect when clicking/touching track background (not on media item)\n const target = event.target as HTMLElement;\n if (target.classList.contains('track')) {\n this.deselectMediaItem();\n }\n }\n\n onTrackPointerMove(event: MouseEvent | TouchEvent, track: Track): void {\n if (this.resizingItem) {\n this.handleResize(event, track);\n return;\n }\n event.preventDefault();\n event.stopPropagation();\n\n if (!this.draggedItem) return;\n\n const coords = this.getEventCoordinates(event);\n const target = event.currentTarget as HTMLElement;\n const rect = target.getBoundingClientRect();\n const x = coords.clientX - rect.left;\n const requestedStartTime = Math.max(0, x / this.pixelsPerMillisecond() - this.dragOffsetTime);\n\n this.state.update(s => {\n const updatedTracks = s.tracks.map(t => {\n if (t.id === track.id) {\n // Get all items except the dragged one for collision detection\n const otherItems = t.items.filter(i => i.id !== this.draggedItem!.id);\n\n // Fix for issue #81: Find snap targets (playhead and items on all tracks)\n const snapTargets = this.dragDropService.findSnapTargets(\n this.draggedItem!.id,\n s.tracks,\n s.playheadPosition\n );\n\n // Calculate valid position and duration considering collisions, gap fitting, and snapping\n const validPosition = this.dragDropService.getValidDragPosition(\n this.draggedItem!,\n requestedStartTime,\n otherItems,\n s.totalDuration,\n snapTargets\n );\n\n // Check if item already exists in this track\n const itemExists = t.items.some(i => i.id === this.draggedItem!.id);\n\n if (itemExists) {\n // Update position and duration in current track\n return {\n ...t,\n items: t.items.map(i =>\n i.id === this.draggedItem!.id\n ? {\n ...i,\n startTime: validPosition.startTime,\n duration: validPosition.duration,\n trackId: track.id\n }\n : i\n )\n };\n } else {\n // Add to new track with adjusted position and duration\n return {\n ...t,\n items: [\n ...otherItems,\n {\n ...this.draggedItem!,\n startTime: validPosition.startTime,\n duration: validPosition.duration,\n trackId: track.id\n }\n ]\n };\n }\n } else if (t.id === this.draggedItemOriginalTrackId && t.id !== track.id) {\n // Remove from original track only if moving to different track\n return {\n ...t,\n items: t.items.filter(i => i.id !== this.draggedItem!.id)\n };\n }\n return t;\n });\n\n // Update the original track ID to current track for smooth dragging within same track\n this.draggedItemOriginalTrackId = track.id;\n\n return { ...s, tracks: updatedTracks };\n });\n }\n\n private handleResize(event: MouseEvent | TouchEvent, track: Track): void {\n if (!this.resizingItem) return;\n\n const coords = this.getEventCoordinates(event);\n const target = event.currentTarget as HTMLElement;\n const rect = target.getBoundingClientRect();\n // Fix for issue #83: getBoundingClientRect() returns viewport-relative coordinates,\n // and coords.clientX is also viewport-relative, so we don't need to add scrollLeft\n const x = coords.clientX - rect.left;\n const timeAtCursor = x / this.pixelsPerMillisecond();\n\n this.state.update(s => {\n // Fix for issue #87: Find snap targets for resize operations\n const snapTargets = this.dragDropService.findSnapTargets(\n this.resizingItem!.item.id,\n s.tracks,\n s.playheadPosition\n );\n\n const updatedTracks = s.tracks.map(t => {\n if (t.id === track.id) {\n // Get resize bounds considering adjacent items\n const bounds = this.dragDropService.getResizeBounds(\n this.resizingItem!.item,\n t.items,\n this.resizingItem!.edge,\n s.totalDuration\n );\n\n return {\n ...t,\n items: t.items.map(i => {\n if (i.id === this.resizingItem!.item.id) {\n if (this.resizingItem!.edge === 'left') {\n // Fix for issue #89: Handle mediaStartTime when resizing from left\n // Apply snapping to left edge (start time)\n let newStartTime = Math.max(\n bounds.minTime,\n Math.min(timeAtCursor, bounds.maxTime)\n );\n\n // Apply snapping if within snap distance\n let minDistance = this.dragDropService.SNAP_DISTANCE_MS;\n for (const target of snapTargets) {\n const distance = Math.abs(newStartTime - target);\n if (distance < minDistance) {\n minDistance = distance;\n // Only snap if within bounds\n if (target >= bounds.minTime && target <= bounds.maxTime) {\n newStartTime = target;\n }\n }\n }\n\n // Calculate how much the timeline position is changing\n const deltaTime = newStartTime - i.startTime;\n const newDuration = i.duration - deltaTime;\n\n // Update media start time (trimming from source media)\n const curre***********tTime = i.mediaStartTime || 0;\n const newMediaStartTime = curre***********tTime + deltaTime;\n\n // Check if we're trying to extend beyond the start of source media\n if (newMediaStartTime < 0) {\n // Can only extend left by curre***********tTime amount\n const maxExtension = currentMediaStartTime;\n const finalStartTime = i.startTime - maxExtension;\n const finalDuration = i.duration + maxExtension;\n\n // Ensure we don't exceed maxDuration\n if (i.maxDuration && finalDuration > i.maxDuration) {\n return {\n ...i,\n startTime: finalStartTime + (finalDuration - i.maxDuration),\n duration: i.maxDuration,\n mediaStartTime: 0\n };\n }\n\n return {\n ...i,\n startTime: finalStartTime,\n duration: finalDuration,\n mediaStartTime: 0\n };\n }\n\n // Ensure media end doesn't exceed maxDuration\n if (i.maxDuration && newMediaStartTime + newDuration > i.maxDuration) {\n const maxAllowedDuration = i.maxDuration - newMediaStartTime;\n return {\n ...i,\n startTime: i.startTime + (i.duration - maxAllowedDuration),\n duration: maxAllowedDuration,\n mediaStartTime: newMediaStartTime\n };\n }\n\n return {\n ...i,\n startTime: newStartTime,\n duration: newDuration,\n mediaStartTime: newMediaStartTime\n };\n } else {\n // Fix for issue #87: Apply snapping to right edge (end time)\n let newEndTime = Math.max(\n bounds.minTime,\n Math.min(timeAtCursor, bounds.maxTime)\n );\n\n // Apply snapping if within snap distance\n let minDistance = this.dragDropService.SNAP_DISTANCE_MS;\n for (const target of snapTargets) {\n const distance = Math.abs(newEndTime - target);\n if (distance < minDistance) {\n minDistance = distance;\n // Only snap if within bounds\n if (target >= bounds.minTime && target <= bounds.maxTime) {\n newEndTime = target;\n }\n }\n }\n\n const newDuration = newEndTime - i.startTime;\n\n // Limit duration by maxDuration if specified\n const limitedDuration = i.maxDuration\n ? Math.min(newDuration, i.maxDuration)\n : newDuration;\n\n return { ...i, duration: limitedDuration };\n }\n }\n return i;\n })\n };\n }\n return t;\n });\n\n return { ...s, tracks: updatedTracks };\n });\n }\n\n onPointerUp(event: MouseEvent | TouchEvent): void {\n // Detect if this was a click/tap (not a drag) on a media item\n if (this.draggedItem && this.mouseDownPosition) {\n const coords = this.getEventCoordinates(event);\n const dx = coords.clientX - this.mouseDownPosition.x;\n const dy = coords.clientY - this.mouseDownPosition.y;\n const distance = Math.sqrt(dx * dx + dy * dy);\n\n // If pointer moved less than 5 pixels, consider it a click/tap\n if (distance < 5) {\n this.selectMediaItem(this.draggedItem.id);\n }\n }\n\n this.draggedItem = null;\n this.draggedItemOriginalTrackId = null;\n this.dragOffsetTime = 0;\n this.isDraggingPlayhead = false;\n this.isDraggingFromRuler = false;\n this.resizingItem = null;\n this.mouseDownPosition = null;\n }\n\n onDocumentPointerMove(event: MouseEvent | TouchEvent): void {\n if (this.isDraggingPlayhead || this.isDraggingFromRuler) {\n // Fix for issue #50: Use ViewChild reference to ensure we use the exact same element as onRulerPointerDown\n if (!this.timelineRuler) {\n return;\n }\n\n const coords = this.getEventCoordinates(event);\n const rulerElement = this.timelineRuler.nativeElement;\n // Use the same calculation as onRulerPointerDown\n // getBoundingClientRect() already accounts for scroll, so we don't add scrollLeft\n const rect = rulerElement.getBoundingClientRect();\n const x = coords.clientX - rect.left;\n const newPosition = x / this.pixelsPerMillisecond();\n\n this.state.update(s => ({\n ...s,\n playheadPosition: Math.max(0, Math.min(newPosition, s.totalDuration))\n }));\n }\n\n // Fix for issue #96: Handle media item dragging and resizing at document level for touch events\n // This allows dragging between tracks on mobile devices\n if (event instanceof TouchEvent) {\n if (this.draggedItem) {\n // Find which track the touch is currently over\n const targetTrack = this.findTrackAtCoordinates(this.getEventCoordinates(event));\n if (targetTrack) {\n // Reuse existing drag logic\n this.onTrackPointerMove(event, targetTrack);\n }\n } else if (this.resizingItem) {\n // Find the track that contains the resizing item\n const targetTrack = this.findTrackContainingItem(this.resizingItem.item.id);\n if (targetTrack) {\n // Reuse existing resize logic\n this.handleResize(event, targetTrack);\n }\n }\n }\n }\n\n // Helper method to find which track is at the given Y coordinate\n private findTrackAtCoordinates(coords: { clientX: number; clientY: number }): Track | null {\n const trackElements = document.querySelectorAll('.track');\n for (const trackElement of Array.from(trackElements)) {\n const rect = trackElement.getBoundingClientRect();\n if (coords.clientY >= rect.top && coords.clientY <= rect.bottom) {\n const trackIndex = Array.from(trackElements).indexOf(trackElement);\n const tracks = this.state().tracks;\n if (trackIndex >= 0 && trackIndex < tracks.length) {\n return tracks[trackIndex];\n }\n }\n }\n return null;\n }\n\n // Helper method to find the track containing a specific item\n private findTrackContainingItem(itemId: string): Track | null {\n const currentState = this.state();\n for (const track of currentState.tracks) {\n if (track.items.some(item => item.id === itemId)) {\n return track;\n }\n }\n return null;\n }\n\n // Helper methods\n getItemStyle(item: MediaItem) {\n return {\n left: `${item.startTime * this.pixelsPerMillisecond()}px`,\n width: `${item.duration * this.pixelsPerMillisecond()}px`\n };\n }\n\n getMediaTypeClass(type: MediaType): string {\n return `media-${type}`;\n }\n\n formatTime(milliseconds: number): string {\n const seconds = Math.floor(milliseconds / 1000);\n const minutes = Math.floor(seconds / 60);\n const remainingSeconds = seconds % 60;\n const cs = Math.floor((milliseconds % 1000) / 10);\n return `${minutes}:${remainingSeconds.toString().padStart(2, '0')}.${cs.toString().padStart(2, '0')}`;\n }\n\n /**\n * Calculate appropriate time interval for markers based on zoom level\n * to prevent marker labels from overlapping\n */\n private getMarkerInterval(): number {\n // Minimum spacing between markers in pixels to prevent overlap\n // Enough space for \"0:00.000\" text (about 50-60px)\n const MIN_M***********NG_PX = 60;\n\n // Calculate how much time represents MIN_M***********NG_PX at current zoom\n const pixelsPerMs = this.pixelsPerMillisecond();\n const minTimeSpacing = MIN_M***********NG_PX / pixelsPerMs;\n\n // Define possible intervals (in ms): 100ms, 250ms, 500ms, 1s, 2s, 5s, 10s, 30s, 60s\n const intervals = [100, 250, 500, 1000, 2000, 5000, 10000, 30000, 60000];\n\n // Find the smallest interval that's larger than or equal to minTimeSpacing\n for (const interval of intervals) {\n if (interval >= minTimeSpacing) {\n return interval;\n }\n }\n\n // If even 60s is too small, use larger intervals\n return Math.ceil(minTimeSpacing / 60000) * 60000;\n }\n\n getTimeMarkers(): { position: number; label: string }[] {\n const markers: { position: number; label: string }[] = [];\n const stepMs = this.getMarkerInterval(); // Dynamic interval based on zoom level\n\n // Fix for issue #85: Do not show the last time mark at totalDuration\n // to prevent container expansion from the text label\n for (let time = 0; time < this.state().totalDuration; time += stepMs) {\n markers.push({\n position: time * this.pixelsPerMillisecond(),\n label: this.formatTime(time)\n });\n }\n\n return markers;\n }\n\n // Add placeholder media item\n addMediaItem(type: MediaType, trackId: string): void {\n const currentState = this.state();\n const track = currentState.tracks.find(t => t.id === trackId);\n\n if (!track) return;\n\n const playheadTime = currentState.playheadPosition;\n const totalDuration = currentState.totalDuration;\n const newItemDuration = type === MediaType.IMAGE ? 5000 : 3000;\n\n // Determine the start time for the new item using the service\n const startTime = this.dragDropService.calculateNewItemStartTime(\n playheadTime,\n track.items,\n this.SNAP_PROXIMITY_MS\n );\n\n // Fix for issue #48: Ensure new item doesn't exceed totalDuration\n const maxAllowedDuration = totalDuration - startTime;\n const finalDuration = Math.min(newItemDuration, maxAllowedDuration);\n\n // Fix for issue #64: Verify that the new item doesn't overlap with any existing items\n const testItem: MediaItem = {\n id: 'temp',\n type,\n startTime,\n duration: finalDuration,\n trackId,\n name: '',\n isPlaceholder: true\n };\n\n // Validate and adjust position if needed\n const validatedStartTime = this.dragDropService.validateItemPosition(testItem, track.items);\n\n // Recalculate duration limit if position was adjusted\n const adjus****************ation = totalDuration - validatedStartTime;\n const adjustedDuration = Math.min(newItemDuration, adjustedMaxAllowedDuration);\n\n // Create the final non-overlapping item\n const newItem: MediaItem = {\n id: `item-${Date.now()}`,\n type,\n startTime: validatedStartTime,\n duration: adjustedDuration,\n trackId,\n name: `${type} placeholder`,\n isPlaceholder: true\n };\n\n // Set maxDuration for audio and video placeholders\n if (type === MediaType.VIDEO) {\n newItem.maxDuration = Math.min(10000, adjustedMaxAllowedDuration); // 10 seconds default for video\n } else if (type === MediaType.AUDIO) {\n newItem.maxDuration = Math.min(15000, adjustedMaxAllowedDuration); // 15 seconds default for audio\n }\n\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t =>\n t.id === trackId\n ? { ...t, items: [...t.items, newItem] }\n : t\n )\n }));\n }\n\n removeMediaItem(itemId: string, trackId: string): void {\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t =>\n t.id === trackId\n ? { ...t, items: t.items.filter(i => i.id !== itemId) }\n : t\n ),\n // Deselect if removing selected item\n selectedItemId: s.selectedItemId === itemId ? null : s.selectedItemId\n }));\n }\n\n // Media selection\n selectMediaItem(itemId: string): void {\n this.state.update(s => ({\n ...s,\n selectedItemId: itemId\n }));\n }\n\n deselectMediaItem(): void {\n this.state.update(s => ({\n ...s,\n selectedItemId: null\n }));\n }\n\n isItemSelected(itemId: string): boolean {\n return this.state().selectedItemId === itemId;\n }\n\n readonly MediaType = MediaType;\n\n // Video preview controls\n togglePlayback(): void {\n this.isPlaying.update(playing => !playing);\n }\n\n skipBackward(): void {\n this.state.update(s => ({\n ...s,\n playheadPosition: Math.max(0, s.playheadPosition - 5000)\n }));\n }\n\n skipForward(): void {\n this.state.update(s => ({\n ...s,\n playheadPosition: Math.min(s.totalDuration, s.playheadPosition + 5000)\n }));\n }\n\n // Duration editor methods\n openDurationEditor(): void {\n this.editedDuration = this.state().totalDuration / 1000;\n this.showDurationEditor.set(true);\n }\n\n closeDurationEditor(): void {\n this.showDurationEditor.set(false);\n }\n\n onDurationInputChange(event: Event): void {\n const input = event.target as HTMLInputElement;\n const value = parseFloat(input.value);\n if (!isNaN(value) && value > 0) {\n this.editedDuration = value;\n }\n }\n\n saveDuration(): void {\n const newDurationMs = Math.max(1000, this.editedDuration * 1000); // At least 1 second\n this.state.update(s => ({\n ...s,\n totalDuration: newDurationMs,\n // Ensure playhead doesn't exceed new duration\n playheadPosition: Math.min(s.playheadPosition, newDurationMs)\n }));\n this.closeDurationEditor();\n }\n\n // Media library methods\n openMediaLibrary(trackId: string): void {\n this.mediaLibraryTargetTrackId = trackId;\n this.showMediaLibrary.set(true);\n }\n\n closeMediaLibrary(): void {\n this.showMediaLibrary.set(false);\n this.mediaLibraryTargetTrackId = null;\n }\n\n onMediaSelected(media: MediaLibraryItem): void {\n if (!this.mediaLibraryTargetTrackId) return;\n\n const currentState = this.state();\n const track = currentState.tracks.find(t => t.id === this.mediaLibraryTargetTrackId);\n\n if (!track) return;\n\n const playheadTime = currentState.playheadPosition;\n const totalDuration = currentState.totalDuration;\n\n // Determine the start time for the new item using the service\n const startTime = this.dragDropService.calculateNewItemStartTime(\n playheadTime,\n track.items,\n this.SNAP_PROXIMITY_MS\n );\n\n // Ensure item doesn't exceed totalDuration\n const maxAllowedDuration = totalDuration - startTime;\n const finalDuration = Math.min(media.duration, maxAllowedDuration);\n\n // Verify that the new item doesn't overlap with any existing items\n const testItem: MediaItem = {\n id: 'temp',\n type: media.type,\n startTime,\n duration: finalDuration,\n trackId: this.mediaLibraryTargetTrackId,\n name: '',\n isPlaceholder: false\n };\n\n // Validate and adjust position if needed\n const validatedStartTime = this.dragDropService.validateItemPosition(testItem, track.items);\n\n // Recalculate duration limit if position was adjusted\n const adjus****************ation = totalDuration - validatedStartTime;\n const adjustedDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n\n // Create the final non-overlapping item\n const newItem: MediaItem = {\n id: `item-${Date.now()}`,\n type: media.type,\n startTime: validatedStartTime,\n duration: adjustedDuration,\n trackId: this.mediaLibraryTargetTrackId,\n name: media.name,\n isPlaceholder: false\n };\n\n // Set maxDuration for audio and video\n if (media.type === MediaType.VIDEO) {\n newItem.maxDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n } else if (media.type === MediaType.AUDIO) {\n newItem.maxDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n }\n\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t =>\n t.id === this.mediaLibraryTargetTrackId\n ? { ...t, items: [...t.items, newItem] }\n : t\n )\n }));\n\n // Close the media library after selection\n this.closeMediaLibrary();\n }\n\n /**\n * Trim (split) the selected media item at the playhead position.\n * Creates two separate items from the original media.\n */\n trimSelectedMedia(): void {\n const currentState = this.state();\n const selectedItemId = currentState.selectedItemId;\n\n if (!selectedItemId) {\n return;\n }\n\n // Find the selected item and its track\n let selectedItem: MediaItem | null = null;\n let selectedTrack: Track | null = null;\n\n for (const track of currentState.tracks) {\n const item = track.items.find(i => i.id === selectedItemId);\n if (item) {\n selectedItem = item;\n selectedTrack = track;\n break;\n }\n }\n\n if (!selectedItem || !selectedTrack) {\n return;\n }\n\n const playheadTime = currentState.playheadPosition;\n const itemStart = selectedItem.startTime;\n const itemEnd = itemStart + selectedItem.duration;\n\n // Check if playhead is within the selected media item\n if (playheadTime <= itemStart || playheadTime >= itemEnd) {\n // Playhead is not within the selected media - show notification\n this.notificationsComponent?.showNotification(\n 'Position the playhead within the selected media to trim it.',\n 'warning'\n );\n return;\n }\n\n // Ensure both parts will have at least MIN_ITEM_DURATION\n const firstPartDuration = playheadTime - itemStart;\n const secondPartDuration = itemEnd - playheadTime;\n\n if (firstPartDuration < this.MIN_ITEM_DURATION || secondPartDuration < this.MIN_ITEM_DURATION) {\n this.notificationsComponent?.showNotification(\n 'Cannot trim: resulting parts would be too short.',\n 'warning'\n );\n return;\n }\n\n // Calculate mediaStartTime adjustments\n const origi************tTime = selectedItem.mediaStartTime || 0;\n const secon**************tTime = origi************tTime + firstPartDuration;\n\n // Create two new items from the original\n const firstPart: MediaItem = {\n ...selectedItem,\n id: `item-${Date.now()}-1`,\n duration: firstPartDuration\n // mediaStartTime stays the same for first part\n };\n\n const secondPart: MediaItem = {\n ...selectedItem,\n id: `item-${Date.now()}-2`,\n startTime: playheadTime,\n duration: secondPartDuration,\n mediaStartTime: secondPartMediaStartTime\n };\n\n // Update the state: remove original, add two new parts\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t => {\n if (t.id === selectedTrack!.id) {\n return {\n ...t,\n items: [\n ...t.items.filter(i => i.id !== selectedItemId),\n firstPart,\n secondPart\n ]\n };\n }\n return t;\n }),\n // Deselect after trimming\n selectedItemId: null\n }));\n\n this.notificationsComponent?.showNotification(\n 'Media trimmed successfully.',\n 'success'\n );\n }\n\n /**\n * Copy the selected media item to the clipboard.\n * Stores a copy of the item and the track it was copied from.\n */\n copySelectedMedia(): void {\n const currentState = this.state();\n const selectedItemId = currentState.selectedItemId;\n\n if (!selectedItemId) {\n return;\n }\n\n // Find the selected item and its track\n let selectedItem: MediaItem | null = null;\n let selectedTrackId: string | null = null;\n\n for (const track of currentState.tracks) {\n const item = track.items.find(i => i.id === selectedItemId);\n if (item) {\n selectedItem = item;\n selectedTrackId = track.id;\n break;\n }\n }\n\n if (!selectedItem || !selectedTrackId) {\n return;\n }\n\n // Store a copy of the item in clipboard\n this.clipboardItem.set({ ...selectedItem });\n this.clipboardSourceTrackId.set(selectedTrackId);\n\n this.notificationsComponent?.showNotification(\n 'Media copied to clipboard.',\n 'success'\n );\n }\n\n /**\n * Paste the clipboard media item at the playhead position.\n * Pastes on the same track where the item was copied from.\n * If there's no space at playhead position, finds the next available slot.\n */\n pasteMedia(): void {\n const copiedItem = this.clipboardItem();\n const sourceTrackId = this.clipboardSourceTrackId();\n\n if (!copiedItem || !sourceTrackId) {\n return;\n }\n\n const currentState = this.state();\n const playheadTime = currentState.playheadPosition;\n const totalDuration = currentState.totalDuration;\n\n // Find the source track\n let targetTrack = currentState.tracks.find(t => t.id === sourceTrackId);\n\n // If source track no longer exists, use the first track\n if (!targetTrack) {\n targetTrack = currentState.tracks[0];\n if (!targetTrack) {\n this.notificationsComponent?.showNotification(\n 'No tracks available to paste media.',\n 'error'\n );\n return;\n }\n }\n\n const itemDuration = copiedItem.duration;\n\n // Try to find a valid position starting from playhead\n const pastePosition = this.findPastePosition(\n playheadTime,\n itemDuration,\n targetTrack.items,\n totalDuration\n );\n\n if (pastePosition === null) {\n this.notificationsComponent?.showNotification(\n 'No space available to paste media on this track.',\n 'warning'\n );\n return;\n }\n\n // Create a new item with a new ID\n const newItem: MediaItem = {\n ...copiedItem,\n id: `item-${Date.now()}`,\n startTime: pastePosition,\n trackId: targetTrack.id\n };\n\n // Add the new item to the track\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t =>\n t.id === targetTrack!.id\n ? { ...t, items: [...t.items, newItem] }\n : t\n )\n }));\n\n this.notificationsComponent?.showNotification(\n 'Media pasted successfully.',\n 'success'\n );\n }\n\n /**\n * Find a valid position to paste media item.\n * First tries at the playhead position, then finds the next available gap.\n */\n private findPastePosition(\n preferredPosition: number,\n duration: number,\n existingItems: MediaItem[],\n totalDuration: number\n ): number | null {\n // Check if we can fit at the preferred position (playhead)\n if (this.canFitAtPosition(preferredPosition, duration, existingItems, totalDuration)) {\n return preferredPosition;\n }\n\n // Sort existing items by start time\n const sortedItems = [...existingItems].sort((a, b) => a.startTime - b.startTime);\n\n // Find all gaps on the track and try to place the item\n const gaps = this.dragDropService.findAllGaps(sortedItems);\n\n // First, try to find a gap that starts at or after the playhead\n for (const gap of gaps) {\n // Calculate actual gap size (considering totalDuration for infinite gaps)\n const effectiveGapEnd = gap.gapEnd === Infinity ? totalDuration : gap.gapEnd;\n const gapSize = effectiveGapEnd - gap.gapStart;\n\n if (gap.gapStart >= preferredPosition && gapSize >= duration) {\n return gap.gapStart;\n }\n }\n\n // If no gap after playhead, try any gap that can fit the item\n for (const gap of gaps) {\n // Calculate actual gap size (considering totalDuration for infinite gaps)\n const effectiveGapEnd = gap.gapEnd === Infinity ? totalDuration : gap.gapEnd;\n const gapSize = effectiveGapEnd - gap.gapStart;\n\n if (gapSize >= duration) {\n return gap.gapStart;\n }\n }\n\n // No suitable position found\n return null;\n }\n\n /**\n * Check if an item can fit at a specific position without overlapping.\n */\n private canFitAtPosition(\n position: number,\n duration: number,\n existingItems: MediaItem[],\n totalDuration: number\n ): boolean {\n // Check bounds\n if (position < 0 || position + duration > totalDuration) {\n return false;\n }\n\n // Check for overlaps with existing items\n const endPosition = position + duration;\n for (const item of existingItems) {\n const itemEnd = item.startTime + item.duration;\n // Check if there's an overlap\n if (position < itemEnd && endPosition > item.startTime) {\n return false;\n }\n }\n\n return true;\n }\n}\n", | |
| "structuredPatch": [ | |
| { | |
| "oldStart": 113, | |
| "oldLines": 9, | |
| "newStart": 113, | |
| "newLines": 62, | |
| "lines": [ | |
| " return this.clipboardItem() !== null;", | |
| " });", | |
| " ", | |
| "- constructor(private dragDropService: TimelineDragDropService) {", | |
| "+ // Render loop ID for cleanup", | |
| "+ private renderLoopId: number | null = null;", | |
| "+", | |
| "+ constructor(", | |
| "+ private dragDropService: TimelineDragDropService,", | |
| "+ public playbackService: PlaybackService", | |
| "+ ) {", | |
| "+ // Effect to sync playhead position from PlaybackService during playback", | |
| "+ effect(() => {", | |
| "+ if (this.playbackService.isPlaying()) {", | |
| "+ const position = this.playbackService.playheadPosition();", | |
| "+ this.state.update(s => ({", | |
| "+ ...s,", | |
| "+ playheadPosition: position", | |
| "+ }));", | |
| "+ }", | |
| "+ });", | |
| " }", | |
| " ", | |
| "+ ngAfterViewInit(): void {", | |
| "+ // Initialize canvas for preview rendering", | |
| "+ if (this.previewCanvas) {", | |
| "+ this.playbackService.setCanvas(this.previewCanvas.nativeElement);", | |
| "+ }", | |
| "+", | |
| "+ // Start continuous render loop for preview (renders current frame even when paused)", | |
| "+ this.startRenderLoop();", | |
| "+ }", | |
| "+", | |
| "+ ngOnDestroy(): void {", | |
| "+ // Clean up render loop", | |
| "+ if (this.renderLoopId !== null) {", | |
| "+ cancelAnimationFrame(this.renderLoopId);", | |
| "+ this.renderLoopId = null;", | |
| "+ }", | |
| "+", | |
| "+ // Stop playback", | |
| "+ this.playbackService.stop();", | |
| "+ }", | |
| "+", | |
| "+ /**", | |
| "+ * Continuous render loop for preview canvas.", | |
| "+ * Keeps rendering even when paused so seeking updates the preview.", | |
| "+ */", | |
| "+ private startRenderLoop(): void {", | |
| "+ const render = () => {", | |
| "+ // Only render if we have active media and are not playing", | |
| "+ // (PlaybackService handles rendering during playback)", | |
| "+ if (!this.playbackService.isPlaying()) {", | |
| "+ this.playbackService.renderCurrentFrame();", | |
| "+ }", | |
| "+ this.renderLoopId = requestAnimationFrame(render);", | |
| "+ };", | |
| "+ this.renderLoopId = requestAnimationFrame(render);", | |
| "+ }", | |
| "+", | |
| " // Track management", | |
| " addTrack(): void {", | |
| " const currentState = this.state();" | |
| ] | |
| } | |
| ], | |
| "userModified": false, | |
| "replaceAll": false | |
| } | |
| } | |
| [2025-12-05T10:38:57.373Z] [INFO] { | |
| "type": "assistant", | |
| "message": { | |
| "model": "claude-opus-4-5-20251101", | |
| "id": "msg_01A8of12ohDpLVp7gT3gZ4HT", | |
| "type": "message", | |
| "role": "assistant", | |
| "content": [ | |
| { | |
| "type": "text", | |
| "text": "Now update the `togglePlayback` method to use the PlaybackService:" | |
| } | |
| ], | |
| "stop_reason": null, | |
| "stop_sequence": null, | |
| "usage": { | |
| "input_tokens": 1, | |
| "cache_creation_input_tokens": 1787, | |
| "cache_read_input_tokens": 80030, | |
| "cache_creation": { | |
| "ephemeral_5m_input_tokens": 1787, | |
| "ephemeral_1h_input_tokens": 0 | |
| }, | |
| "output_tokens": 4, | |
| "service_tier": "standard" | |
| }, | |
| "context_management": null | |
| }, | |
| "parent_tool_use_id": null, | |
| "session_id": "d5b1bf94-1397-44f7-9390-3c57ba19d0b0", | |
| "uuid": "400cdc74-f948-46ac-94ed-6f3646a9e4ee" | |
| } | |
| [2025-12-05T10:39:03.362Z] [INFO] {"type":"assistant","message":{"model":"claude-opus-4-5-20251101","id":"msg_01A8of12ohDpLVp7gT3gZ4HT","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01P8CaoPyuZ7Qij1iZ63bKsE","name":"Edit","input":{"file_path":"/tmp/gh-issue-solver-1764930855025/video-timeline/src/app/components/timeline/timeline.component.ts","old_string":" readonly MediaType = MediaType;\n\n // Video preview controls\n togglePlayback(): void {\n this.isPlaying.update(playing => !playing);\n }\n\n skipBackward(): void {\n this.state.update(s => ({\n ...s,\n playheadPosition: Math.max(0, s.playheadPosition - 5000)\n }));\n }\n\n skipForward(): void {\n this.state.update(s => ({\n ...s,\n playheadPosition: Math.min(s.totalDuration, s.playheadPosition + 5000)\n }));\n }","new_string":" readonly MediaType = MediaType;\n\n // Video preview controls\n togglePlayback(): void {\n const currentState = this.state();\n\n if (this.playbackService.isPlaying()) {\n this.playbackService.pause();\n this.isPlaying.set(false);\n } else {\n // Sync playhead position to PlaybackService before starting\n this.playbackService.setPlayheadPosition(currentState.playheadPosition);\n this.playbackService.play(currentState.tracks, currentState.totalDuration);\n this.isPlaying.set(true);\n }\n }\n\n skipBackward(): void {\n const currentState = this.state();\n const newPosition = Math.max(0, currentState.playheadPosition - 5000);\n\n this.state.update(s => ({\n ...s,\n playheadPosition: newPosition\n }));\n\n // Sync position and update media\n this.playbackService.seek(currentState.tracks, newPosition);\n }\n\n skipForward(): void {\n const currentState = this.state();\n const newPosition = Math.min(currentState.totalDuration, currentState.playheadPosition + 5000);\n\n this.state.update(s => ({\n ...s,\n playheadPosition: newPosition\n }));\n\n // Sync | |
| [2025-12-05T10:39:03.429Z] [INFO] position and update media\n this.playbackService.seek(currentState.tracks, newPosition);\n }"}}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":1787,"cache_read_input_tokens":80030,"cache_creation":{"ephemeral_5m_input_tokens":1787,"ephemeral_1h_input_tokens":0},"output_tokens":648,"service_tier":"standard"},"context_management":null},"parent_tool_use_id":null,"session_id":"d5b1bf94-1397-44f7-9390-3c57ba19d0b0","uuid":"b597d545-a52d-44f5-8e00-3c4c6b15727c"} | |
| [2025-12-05T10:39:03.886Z] [INFO] { | |
| "type": "user", | |
| "message": { | |
| "role": "user", | |
| "content": [ | |
| { | |
| "tool_use_id": "toolu_01P8CaoPyuZ7Qij1iZ63bKsE", | |
| "type": "tool_result", | |
| "content": "The file /tmp/gh-issue-solver-1764930855025/video-timeline/src/app/components/timeline/timeline.component.ts has been updated. Here's the result of running `cat -n` on a snippet of the edited file:\n 773→ isItemSelected(itemId: string): boolean {\n 774→ return this.state().selectedItemId === itemId;\n 775→ }\n 776→\n 777→ readonly MediaType = MediaType;\n 778→\n 779→ // Video preview controls\n 780→ togglePlayback(): void {\n 781→ const currentState = this.state();\n 782→\n 783→ if (this.playbackService.isPlaying()) {\n 784→ this.playbackService.pause();\n 785→ this.isPlaying.set(false);\n 786→ } else {\n 787→ // Sync playhead position to PlaybackService before starting\n 788→ this.playbackService.setPlayheadPosition(currentState.playheadPosition);\n 789→ this.playbackService.play(currentState.tracks, currentState.totalDuration);\n 790→ this.isPlaying.set(true);\n 791→ }\n 792→ }\n 793→\n 794→ skipBackward(): void {\n 795→ const currentState = this.state();\n 796→ const newPosition = Math.max(0, currentState.playheadPosition - 5000);\n 797→\n 798→ this.state.update(s => ({\n 799→ ...s,\n 800→ playheadPosition: newPosition\n 801→ }));\n 802→\n 803→ // Sync position and update media\n 804→ this.playbackService.seek(currentState.tracks, newPosition);\n 805→ }\n 806→\n 807→ skipForward(): void {\n 808→ const currentState = this.state();\n 809→ const newPosition = Math.min(currentState.totalDuration, currentState.playheadPosition + 5000);\n 810→\n 811→ this.state.update(s => ({\n 812→ ...s,\n 813→ playheadPosition: newPosition\n 814→ }));\n 815→\n 816→ // Sync position and update media\n 817→ this.playbackService.seek(currentState.tracks, newPosition);\n 818→ }\n 819→\n 820→ // Duration editor methods\n 821→ openDurationEditor(): void {\n 822→ this.editedDuration = this.state().totalDuration / 1000;" | |
| } | |
| ] | |
| }, | |
| "parent_tool_use_id": null, | |
| "session_id": "d5b1bf94-1397-44f7-9390-3c57ba19d0b0", | |
| "uuid": "7105d408-16a4-4faf-9d93-4054526b55df", | |
| "tool_use_result": { | |
| "filePath": "/tmp/gh-issue-solver-1764930855025/video-timeline/src/app/components/timeline/timeline.component.ts", | |
| "oldString": " readonly MediaType = MediaType;\n\n // Video preview controls\n togglePlayback(): void {\n this.isPlaying.update(playing => !playing);\n }\n\n skipBackward(): void {\n this.state.update(s => ({\n ...s,\n playheadPosition: Math.max(0, s.playheadPosition - 5000)\n }));\n }\n\n skipForward(): void {\n this.state.update(s => ({\n ...s,\n playheadPosition: Math.min(s.totalDuration, s.playheadPosition + 5000)\n }));\n }", | |
| "newString": " readonly MediaType = MediaType;\n\n // Video preview controls\n togglePlayback(): void {\n const currentState = this.state();\n\n if (this.playbackService.isPlaying()) {\n this.playbackService.pause();\n this.isPlaying.set(false);\n } else {\n // Sync playhead position to PlaybackService before starting\n this.playbackService.setPlayheadPosition(currentState.playheadPosition);\n this.playbackService.play(currentState.tracks, currentState.totalDuration);\n this.isPlaying.set(true);\n }\n }\n\n skipBackward(): void {\n const currentState = this.state();\n const newPosition = Math.max(0, currentState.playheadPosition - 5000);\n\n this.state.update(s => ({\n ...s,\n playheadPosition: newPosition\n }));\n\n // Sync position and update media\n this.playbackService.seek(currentState.tracks, newPosition);\n }\n\n skipForward(): void {\n const currentState = this.state();\n const newPosition = Math.min(currentState.totalDuration, currentState.playheadPosition + 5000);\n\n this.state.update(s => ({\n ...s,\n playheadPosition: newPosition\n }));\n\n // Sync position and update media\n this.playbackService.seek(currentState.tracks, newPosition);\n }", | |
| "originalFile": "import { Component, signal, computed, ViewChild, ElementRef, AfterViewInit, OnDestroy, effect } from '@angular/core';\nimport { CommonModule } from '@angular/common';\nimport { MediaType, MediaItem, Track, TimelineState } from '../../models/timeline.models';\nimport { MediaLibraryComponent, MediaLibraryItem } from '../media-library/media-library.component';\nimport { Media***********onent } from '../media-toolbar/media-toolbar.component';\nimport { Notif************onent } from '../notifications/notifications.component';\nimport { Timel*************rvice } from '../../services/timeline-drag-drop.service';\nimport { PlaybackService } from '../../services/playback.service';\n\n@Component({\n selector: 'app-timeline',\n standalone: true,\n imports: [CommonModule, MediaLibraryComponent, MediaToolbarComponent, NotificationsComponent],\n templateUrl: './timeline.component.html',\n styleUrl: './timeline.component.css'\n})\nexport class TimelineComponent implements AfterViewInit, OnDestroy {\n // Zoom levels: pixels per second\n private readonly MIN_ZOOM = 10;\n private readonly MAX_ZOOM = 200;\n private readonly ZOOM_STEP = 20;\n readonly TRACK_HEADER_WIDTH = 150; // Width of track header in pixels\n private readonly SNAP_PROXIMITY_MS = 500; // Snap to item if playhead is within 500ms\n private readonly MIN_ITEM_DURATION = 100; // Minimum item duration in milliseconds\n\n // Canvas dimensions for preview\n readonly PREVIEW_WIDTH = 640;\n readonly PREVIEW_HEIGHT = 360;\n\n // View references\n @ViewChild('timelineRuler') timelineRuler?: ElementRef<HTMLElement>;\n @ViewChild('notifications') notificationsComponent?: NotificationsComponent;\n @ViewChild('previewCanvas') previewCanvas?: ElementRef<HTMLCanvasElement>;\n\n // Timeline state\n readonly state = signal<TimelineState>({\n tracks: [\n { id: '1', name: 'Track 1', order: 0, items: [] },\n { id: '2', name: 'Track 2', order: 1, items: [] }\n ],\n playheadPosition: 0,\n zoomLevel: 50, // pixels per second\n totalDuration: 120000, // 120 seconds in milliseconds\n selectedItemId: null\n });\n\n // Computed values\n readonly pixel**********econd = computed(() => {\n return this.state().zoomLevel / 1000;\n });\n\n readonly timelineWidth = computed(() => {\n const state = this.state();\n // Calculate the maximum end time across all tracks\n let maxEndTime = state.totalDuration;\n\n for (const track of state.tracks) {\n for (const item of track.items) {\n const itemEndTime = item.startTime + item.duration;\n if (itemEndTime > maxEndTime) {\n maxEndTime = itemEndTime;\n }\n }\n }\n\n return maxEndTime * this.pixelsPerMillisecond();\n });\n\n readonly timelineLineHeight = computed(() => {\n const state = this.state();\n return state.tracks.length * 60 + 32;\n });\n\n readonly playheadPosition = computed(() => {\n return this.state().playheadPosition * this.pixelsPerMillisecond();\n });\n\n readonly playh************ition = computed(() => {\n return this.playheadPosition() + this.TRACK_HEADER_WIDTH;\n });\n\n // Computed: whether a media item is currently selected\n readonly hasSelectedItem = computed(() => {\n return this.state().selectedItemId !== null;\n });\n\n // Dragging state\n private draggedItem: MediaItem | null = null;\n private draggedItemOriginalTrackId: string | null = null;\n private dragOffsetTime: number = 0; // Offset in milliseconds from item start to cursor position\n private isDraggingPlayhead = false;\n private isDraggingFromRuler = false;\n private resizingItem: { item: MediaItem; edge: 'left' | 'right' } | null = null;\n private mouseDownPosition: { x: number; y: number } | null = null; // Track mouse down position for click detection\n\n // Video preview state\n readonly isPlaying = signal<boolean>(false);\n\n // Duration editor state\n readonly showDurationEditor = signal<boolean>(false);\n private editedDuration: number = 120; // Duration in seconds\n\n // Media library state\n readonly showMediaLibrary = signal<boolean>(false);\n private mediaLibraryTargetTrackId: string | null = null;\n\n // Clipboard state for copy/paste functionality\n private readonly clipboardItem = signal<MediaItem | null>(null);\n private readonly clipb************ackId = signal<string | null>(null);\n\n // Computed: whether a media item is in clipboard\n readonly hasClipboardItem = computed(() => {\n return this.clipboardItem() !== null;\n });\n\n // Render loop ID for cleanup\n private renderLoopId: number | null = null;\n\n constructor(\n private dragDropService: TimelineDragDropService,\n public playbackService: PlaybackService\n ) {\n // Effect to sync playhead position from PlaybackService during playback\n effect(() => {\n if (this.playbackService.isPlaying()) {\n const position = this.playbackService.playheadPosition();\n this.state.update(s => ({\n ...s,\n playheadPosition: position\n }));\n }\n });\n }\n\n ngAfterViewInit(): void {\n // Initialize canvas for preview rendering\n if (this.previewCanvas) {\n this.playbackService.setCanvas(this.previewCanvas.nativeElement);\n }\n\n // Start continuous render loop for preview (renders current frame even when paused)\n this.startRenderLoop();\n }\n\n ngOnDestroy(): void {\n // Clean up render loop\n if (this.renderLoopId !== null) {\n cancelAnimationFrame(this.renderLoopId);\n this.renderLoopId = null;\n }\n\n // Stop playback\n this.playbackService.stop();\n }\n\n /**\n * Continuous render loop for preview canvas.\n * Keeps rendering even when paused so seeking updates the preview.\n */\n private startRenderLoop(): void {\n const render = () => {\n // Only render if we have active media and are not playing\n // (PlaybackService handles rendering during playback)\n if (!this.playbackService.isPlaying()) {\n this.playbackService.renderCurrentFrame();\n }\n this.renderLoopId = requestAnimationFrame(render);\n };\n this.renderLoopId = requestAnimationFrame(render);\n }\n\n // Track management\n addTrack(): void {\n const currentState = this.state();\n const newTrack: Track = {\n id: `track-${Date.now()}`,\n name: `Track ${currentState.tracks.length + 1}`,\n order: currentState.tracks.length,\n items: []\n };\n\n this.state.update(s => ({\n ...s,\n tracks: [...s.tracks, newTrack]\n }));\n }\n\n removeTrack(trackId: string): void {\n const currentState = this.state();\n if (currentState.tracks.length <= 1) {\n return; // Keep at least one track\n }\n\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.filter(t => t.id !== trackId)\n }));\n }\n\n // Zoom controls\n zoomIn(): void {\n this.state.update(s => ({\n ...s,\n zoomLevel: Math.min(s.zoomLevel + this.ZOOM_STEP, this.MAX_ZOOM)\n }));\n }\n\n zoomOut(): void {\n this.state.update(s => ({\n ...s,\n zoomLevel: Math.max(s.zoomLevel - this.ZOOM_STEP, this.MIN_ZOOM)\n }));\n }\n\n // Utility method to extract coordinates from mouse or touch events\n private getEventCoordinates(event: MouseEvent | TouchEvent): { clientX: number; clientY: number } {\n if (event instanceof MouseEvent) {\n return { clientX: event.clientX, clientY: event.clientY };\n } else {\n const touch = event.touches[0] || event.changedTouches[0];\n return { clientX: touch.clientX, clientY: touch.clientY };\n }\n }\n\n // Playhead controls\n onRulerPointerDown(event: MouseEvent | TouchEvent): void {\n event.preventDefault();\n this.isDraggingFromRuler = true;\n\n // Immediately update position on pointer down\n const target = event.currentTarget as HTMLElement;\n const rect = target.getBoundingClientRect();\n const coords = this.getEventCoordinates(event);\n // Calculate position within the ruler element\n // getBoundingClientRect() already accounts for scroll, so we don't add scrollLeft\n const x = coords.clientX - rect.left;\n const newPosition = x / this.pixelsPerMillisecond();\n\n this.state.update(s => ({\n ...s,\n playheadPosition: Math.max(0, Math.min(newPosition, s.totalDuration))\n }));\n }\n\n onPlayheadPointerDown(event: MouseEvent | TouchEvent): void {\n event.preventDefault();\n event.stopPropagation();\n this.isDraggingPlayhead = true;\n }\n\n\n // Media item drag and drop\n onMediaItemPointerDown(event: MouseEvent | TouchEvent, item: MediaItem, track: Track): void {\n const target = event.target as HTMLElement;\n\n // Check if clicking/touching on resize handle\n if (target.classList.contains('resize-handle')) {\n this.resizingItem = {\n item,\n edge: target.classList.contains('resize-handle-left') ? 'left' : 'right'\n };\n event.preventDefault();\n return;\n }\n\n const coords = this.getEventCoordinates(event);\n this.mouseDownPosition = { x: coords.clientX, y: coords.clientY };\n\n const mediaItemElement = event.currentTarget as HTMLElement;\n const rect = mediaItemElement.getBoundingClientRect();\n const clickX = coords.clientX - rect.left;\n\n // Convert pixel offset to time offset\n this.dragOffsetTime = clickX / this.pixelsPerMillisecond();\n\n this.draggedItem = item;\n this.draggedItemOriginalTrackId = track.id;\n event.preventDefault();\n }\n\n onTrackPointerDown(event: MouseEvent | TouchEvent): void {\n // Deselect when clicking/touching track background (not on media item)\n const target = event.target as HTMLElement;\n if (target.classList.contains('track')) {\n this.deselectMediaItem();\n }\n }\n\n onTrackPointerMove(event: MouseEvent | TouchEvent, track: Track): void {\n if (this.resizingItem) {\n this.handleResize(event, track);\n return;\n }\n event.preventDefault();\n event.stopPropagation();\n\n if (!this.draggedItem) return;\n\n const coords = this.getEventCoordinates(event);\n const target = event.currentTarget as HTMLElement;\n const rect = target.getBoundingClientRect();\n const x = coords.clientX - rect.left;\n const requestedStartTime = Math.max(0, x / this.pixelsPerMillisecond() - this.dragOffsetTime);\n\n this.state.update(s => {\n const updatedTracks = s.tracks.map(t => {\n if (t.id === track.id) {\n // Get all items except the dragged one for collision detection\n const otherItems = t.items.filter(i => i.id !== this.draggedItem!.id);\n\n // Fix for issue #81: Find snap targets (playhead and items on all tracks)\n const snapTargets = this.dragDropService.findSnapTargets(\n this.draggedItem!.id,\n s.tracks,\n s.playheadPosition\n );\n\n // Calculate valid position and duration considering collisions, gap fitting, and snapping\n const validPosition = this.dragDropService.getValidDragPosition(\n this.draggedItem!,\n requestedStartTime,\n otherItems,\n s.totalDuration,\n snapTargets\n );\n\n // Check if item already exists in this track\n const itemExists = t.items.some(i => i.id === this.draggedItem!.id);\n\n if (itemExists) {\n // Update position and duration in current track\n return {\n ...t,\n items: t.items.map(i =>\n i.id === this.draggedItem!.id\n ? {\n ...i,\n startTime: validPosition.startTime,\n duration: validPosition.duration,\n trackId: track.id\n }\n : i\n )\n };\n } else {\n // Add to new track with adjusted position and duration\n return {\n ...t,\n items: [\n ...otherItems,\n {\n ...this.draggedItem!,\n startTime: validPosition.startTime,\n duration: validPosition.duration,\n trackId: track.id\n }\n ]\n };\n }\n } else if (t.id === this.draggedItemOriginalTrackId && t.id !== track.id) {\n // Remove from original track only if moving to different track\n return {\n ...t,\n items: t.items.filter(i => i.id !== this.draggedItem!.id)\n };\n }\n return t;\n });\n\n // Update the original track ID to current track for smooth dragging within same track\n this.draggedItemOriginalTrackId = track.id;\n\n return { ...s, tracks: updatedTracks };\n });\n }\n\n private handleResize(event: MouseEvent | TouchEvent, track: Track): void {\n if (!this.resizingItem) return;\n\n const coords = this.getEventCoordinates(event);\n const target = event.currentTarget as HTMLElement;\n const rect = target.getBoundingClientRect();\n // Fix for issue #83: getBoundingClientRect() returns viewport-relative coordinates,\n // and coords.clientX is also viewport-relative, so we don't need to add scrollLeft\n const x = coords.clientX - rect.left;\n const timeAtCursor = x / this.pixelsPerMillisecond();\n\n this.state.update(s => {\n // Fix for issue #87: Find snap targets for resize operations\n const snapTargets = this.dragDropService.findSnapTargets(\n this.resizingItem!.item.id,\n s.tracks,\n s.playheadPosition\n );\n\n const updatedTracks = s.tracks.map(t => {\n if (t.id === track.id) {\n // Get resize bounds considering adjacent items\n const bounds = this.dragDropService.getResizeBounds(\n this.resizingItem!.item,\n t.items,\n this.resizingItem!.edge,\n s.totalDuration\n );\n\n return {\n ...t,\n items: t.items.map(i => {\n if (i.id === this.resizingItem!.item.id) {\n if (this.resizingItem!.edge === 'left') {\n // Fix for issue #89: Handle mediaStartTime when resizing from left\n // Apply snapping to left edge (start time)\n let newStartTime = Math.max(\n bounds.minTime,\n Math.min(timeAtCursor, bounds.maxTime)\n );\n\n // Apply snapping if within snap distance\n let minDistance = this.dragDropService.SNAP_DISTANCE_MS;\n for (const target of snapTargets) {\n const distance = Math.abs(newStartTime - target);\n if (distance < minDistance) {\n minDistance = distance;\n // Only snap if within bounds\n if (target >= bounds.minTime && target <= bounds.maxTime) {\n newStartTime = target;\n }\n }\n }\n\n // Calculate how much the timeline position is changing\n const deltaTime = newStartTime - i.startTime;\n const newDuration = i.duration - deltaTime;\n\n // Update media start time (trimming from source media)\n const curre***********tTime = i.mediaStartTime || 0;\n const newMediaStartTime = curre***********tTime + deltaTime;\n\n // Check if we're trying to extend beyond the start of source media\n if (newMediaStartTime < 0) {\n // Can only extend left by curre***********tTime amount\n const maxExtension = currentMediaStartTime;\n const finalStartTime = i.startTime - maxExtension;\n const finalDuration = i.duration + maxExtension;\n\n // Ensure we don't exceed maxDuration\n if (i.maxDuration && finalDuration > i.maxDuration) {\n return {\n ...i,\n startTime: finalStartTime + (finalDuration - i.maxDuration),\n duration: i.maxDuration,\n mediaStartTime: 0\n };\n }\n\n return {\n ...i,\n startTime: finalStartTime,\n duration: finalDuration,\n mediaStartTime: 0\n };\n }\n\n // Ensure media end doesn't exceed maxDuration\n if (i.maxDuration && newMediaStartTime + newDuration > i.maxDuration) {\n const maxAllowedDuration = i.maxDuration - newMediaStartTime;\n return {\n ...i,\n startTime: i.startTime + (i.duration - maxAllowedDuration),\n duration: maxAllowedDuration,\n mediaStartTime: newMediaStartTime\n };\n }\n\n return {\n ...i,\n startTime: newStartTime,\n duration: newDuration,\n mediaStartTime: newMediaStartTime\n };\n } else {\n // Fix for issue #87: Apply snapping to right edge (end time)\n let newEndTime = Math.max(\n bounds.minTime,\n Math.min(timeAtCursor, bounds.maxTime)\n );\n\n // Apply snapping if within snap distance\n let minDistance = this.dragDropService.SNAP_DISTANCE_MS;\n for (const target of snapTargets) {\n const distance = Math.abs(newEndTime - target);\n if (distance < minDistance) {\n minDistance = distance;\n // Only snap if within bounds\n if (target >= bounds.minTime && target <= bounds.maxTime) {\n newEndTime = target;\n }\n }\n }\n\n const newDuration = newEndTime - i.startTime;\n\n // Limit duration by maxDuration if specified\n const limitedDuration = i.maxDuration\n ? Math.min(newDuration, i.maxDuration)\n : newDuration;\n\n return { ...i, duration: limitedDuration };\n }\n }\n return i;\n })\n };\n }\n return t;\n });\n\n return { ...s, tracks: updatedTracks };\n });\n }\n\n onPointerUp(event: MouseEvent | TouchEvent): void {\n // Detect if this was a click/tap (not a drag) on a media item\n if (this.draggedItem && this.mouseDownPosition) {\n const coords = this.getEventCoordinates(event);\n const dx = coords.clientX - this.mouseDownPosition.x;\n const dy = coords.clientY - this.mouseDownPosition.y;\n const distance = Math.sqrt(dx * dx + dy * dy);\n\n // If pointer moved less than 5 pixels, consider it a click/tap\n if (distance < 5) {\n this.selectMediaItem(this.draggedItem.id);\n }\n }\n\n this.draggedItem = null;\n this.draggedItemOriginalTrackId = null;\n this.dragOffsetTime = 0;\n this.isDraggingPlayhead = false;\n this.isDraggingFromRuler = false;\n this.resizingItem = null;\n this.mouseDownPosition = null;\n }\n\n onDocumentPointerMove(event: MouseEvent | TouchEvent): void {\n if (this.isDraggingPlayhead || this.isDraggingFromRuler) {\n // Fix for issue #50: Use ViewChild reference to ensure we use the exact same element as onRulerPointerDown\n if (!this.timelineRuler) {\n return;\n }\n\n const coords = this.getEventCoordinates(event);\n const rulerElement = this.timelineRuler.nativeElement;\n // Use the same calculation as onRulerPointerDown\n // getBoundingClientRect() already accounts for scroll, so we don't add scrollLeft\n const rect = rulerElement.getBoundingClientRect();\n const x = coords.clientX - rect.left;\n const newPosition = x / this.pixelsPerMillisecond();\n\n this.state.update(s => ({\n ...s,\n playheadPosition: Math.max(0, Math.min(newPosition, s.totalDuration))\n }));\n }\n\n // Fix for issue #96: Handle media item dragging and resizing at document level for touch events\n // This allows dragging between tracks on mobile devices\n if (event instanceof TouchEvent) {\n if (this.draggedItem) {\n // Find which track the touch is currently over\n const targetTrack = this.findTrackAtCoordinates(this.getEventCoordinates(event));\n if (targetTrack) {\n // Reuse existing drag logic\n this.onTrackPointerMove(event, targetTrack);\n }\n } else if (this.resizingItem) {\n // Find the track that contains the resizing item\n const targetTrack = this.findTrackContainingItem(this.resizingItem.item.id);\n if (targetTrack) {\n // Reuse existing resize logic\n this.handleResize(event, targetTrack);\n }\n }\n }\n }\n\n // Helper method to find which track is at the given Y coordinate\n private findTrackAtCoordinates(coords: { clientX: number; clientY: number }): Track | null {\n const trackElements = document.querySelectorAll('.track');\n for (const trackElement of Array.from(trackElements)) {\n const rect = trackElement.getBoundingClientRect();\n if (coords.clientY >= rect.top && coords.clientY <= rect.bottom) {\n const trackIndex = Array.from(trackElements).indexOf(trackElement);\n const tracks = this.state().tracks;\n if (trackIndex >= 0 && trackIndex < tracks.length) {\n return tracks[trackIndex];\n }\n }\n }\n return null;\n }\n\n // Helper method to find the track containing a specific item\n private findTrackContainingItem(itemId: string): Track | null {\n const currentState = this.state();\n for (const track of currentState.tracks) {\n if (track.items.some(item => item.id === itemId)) {\n return track;\n }\n }\n return null;\n }\n\n // Helper methods\n getItemStyle(item: MediaItem) {\n return {\n left: `${item.startTime * this.pixelsPerMillisecond()}px`,\n width: `${item.duration * this.pixelsPerMillisecond()}px`\n };\n }\n\n getMediaTypeClass(type: MediaType): string {\n return `media-${type}`;\n }\n\n formatTime(milliseconds: number): string {\n const seconds = Math.floor(milliseconds / 1000);\n const minutes = Math.floor(seconds / 60);\n const remainingSeconds = seconds % 60;\n const cs = Math.floor((milliseconds % 1000) / 10);\n return `${minutes}:${remainingSeconds.toString().padStart(2, '0')}.${cs.toString().padStart(2, '0')}`;\n }\n\n /**\n * Calculate appropriate time interval for markers based on zoom level\n * to prevent marker labels from overlapping\n */\n private getMarkerInterval(): number {\n // Minimum spacing between markers in pixels to prevent overlap\n // Enough space for \"0:00.000\" text (about 50-60px)\n const MIN_M***********NG_PX = 60;\n\n // Calculate how much time represents MIN_M***********NG_PX at current zoom\n const pixelsPerMs = this.pixelsPerMillisecond();\n const minTimeSpacing = MIN_M***********NG_PX / pixelsPerMs;\n\n // Define possible intervals (in ms): 100ms, 250ms, 500ms, 1s, 2s, 5s, 10s, 30s, 60s\n const intervals = [100, 250, 500, 1000, 2000, 5000, 10000, 30000, 60000];\n\n // Find the smallest interval that's larger than or equal to minTimeSpacing\n for (const interval of intervals) {\n if (interval >= minTimeSpacing) {\n return interval;\n }\n }\n\n // If even 60s is too small, use larger intervals\n return Math.ceil(minTimeSpacing / 60000) * 60000;\n }\n\n getTimeMarkers(): { position: number; label: string }[] {\n const markers: { position: number; label: string }[] = [];\n const stepMs = this.getMarkerInterval(); // Dynamic interval based on zoom level\n\n // Fix for issue #85: Do not show the last time mark at totalDuration\n // to prevent container expansion from the text label\n for (let time = 0; time < this.state().totalDuration; time += stepMs) {\n markers.push({\n position: time * this.pixelsPerMillisecond(),\n label: this.formatTime(time)\n });\n }\n\n return markers;\n }\n\n // Add placeholder media item\n addMediaItem(type: MediaType, trackId: string): void {\n const currentState = this.state();\n const track = currentState.tracks.find(t => t.id === trackId);\n\n if (!track) return;\n\n const playheadTime = currentState.playheadPosition;\n const totalDuration = currentState.totalDuration;\n const newItemDuration = type === MediaType.IMAGE ? 5000 : 3000;\n\n // Determine the start time for the new item using the service\n const startTime = this.dragDropService.calculateNewItemStartTime(\n playheadTime,\n track.items,\n this.SNAP_PROXIMITY_MS\n );\n\n // Fix for issue #48: Ensure new item doesn't exceed totalDuration\n const maxAllowedDuration = totalDuration - startTime;\n const finalDuration = Math.min(newItemDuration, maxAllowedDuration);\n\n // Fix for issue #64: Verify that the new item doesn't overlap with any existing items\n const testItem: MediaItem = {\n id: 'temp',\n type,\n startTime,\n duration: finalDuration,\n trackId,\n name: '',\n isPlaceholder: true\n };\n\n // Validate and adjust position if needed\n const validatedStartTime = this.dragDropService.validateItemPosition(testItem, track.items);\n\n // Recalculate duration limit if position was adjusted\n const adjus****************ation = totalDuration - validatedStartTime;\n const adjustedDuration = Math.min(newItemDuration, adjustedMaxAllowedDuration);\n\n // Create the final non-overlapping item\n const newItem: MediaItem = {\n id: `item-${Date.now()}`,\n type,\n startTime: validatedStartTime,\n duration: adjustedDuration,\n trackId,\n name: `${type} placeholder`,\n isPlaceholder: true\n };\n\n // Set maxDuration for audio and video placeholders\n if (type === MediaType.VIDEO) {\n newItem.maxDuration = Math.min(10000, adjustedMaxAllowedDuration); // 10 seconds default for video\n } else if (type === MediaType.AUDIO) {\n newItem.maxDuration = Math.min(15000, adjustedMaxAllowedDuration); // 15 seconds default for audio\n }\n\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t =>\n t.id === trackId\n ? { ...t, items: [...t.items, newItem] }\n : t\n )\n }));\n }\n\n removeMediaItem(itemId: string, trackId: string): void {\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t =>\n t.id === trackId\n ? { ...t, items: t.items.filter(i => i.id !== itemId) }\n : t\n ),\n // Deselect if removing selected item\n selectedItemId: s.selectedItemId === itemId ? null : s.selectedItemId\n }));\n }\n\n // Media selection\n selectMediaItem(itemId: string): void {\n this.state.update(s => ({\n ...s,\n selectedItemId: itemId\n }));\n }\n\n deselectMediaItem(): void {\n this.state.update(s => ({\n ...s,\n selectedItemId: null\n }));\n }\n\n isItemSelected(itemId: string): boolean {\n return this.state().selectedItemId === itemId;\n }\n\n readonly MediaType = MediaType;\n\n // Video preview controls\n togglePlayback(): void {\n this.isPlaying.update(playing => !playing);\n }\n\n skipBackward(): void {\n this.state.update(s => ({\n ...s,\n playheadPosition: Math.max(0, s.playheadPosition - 5000)\n }));\n }\n\n skipForward(): void {\n this.state.update(s => ({\n ...s,\n playheadPosition: Math.min(s.totalDuration, s.playheadPosition + 5000)\n }));\n }\n\n // Duration editor methods\n openDurationEditor(): void {\n this.editedDuration = this.state().totalDuration / 1000;\n this.showDurationEditor.set(true);\n }\n\n closeDurationEditor(): void {\n this.showDurationEditor.set(false);\n }\n\n onDurationInputChange(event: Event): void {\n const input = event.target as HTMLInputElement;\n const value = parseFloat(input.value);\n if (!isNaN(value) && value > 0) {\n this.editedDuration = value;\n }\n }\n\n saveDuration(): void {\n const newDurationMs = Math.max(1000, this.editedDuration * 1000); // At least 1 second\n this.state.update(s => ({\n ...s,\n totalDuration: newDurationMs,\n // Ensure playhead doesn't exceed new duration\n playheadPosition: Math.min(s.playheadPosition, newDurationMs)\n }));\n this.closeDurationEditor();\n }\n\n // Media library methods\n openMediaLibrary(trackId: string): void {\n this.mediaLibraryTargetTrackId = trackId;\n this.showMediaLibrary.set(true);\n }\n\n closeMediaLibrary(): void {\n this.showMediaLibrary.set(false);\n this.mediaLibraryTargetTrackId = null;\n }\n\n onMediaSelected(media: MediaLibraryItem): void {\n if (!this.mediaLibraryTargetTrackId) return;\n\n const currentState = this.state();\n const track = currentState.tracks.find(t => t.id === this.mediaLibraryTargetTrackId);\n\n if (!track) return;\n\n const playheadTime = currentState.playheadPosition;\n const totalDuration = currentState.totalDuration;\n\n // Determine the start time for the new item using the service\n const startTime = this.dragDropService.calculateNewItemStartTime(\n playheadTime,\n track.items,\n this.SNAP_PROXIMITY_MS\n );\n\n // Ensure item doesn't exceed totalDuration\n const maxAllowedDuration = totalDuration - startTime;\n const finalDuration = Math.min(media.duration, maxAllowedDuration);\n\n // Verify that the new item doesn't overlap with any existing items\n const testItem: MediaItem = {\n id: 'temp',\n type: media.type,\n startTime,\n duration: finalDuration,\n trackId: this.mediaLibraryTargetTrackId,\n name: '',\n isPlaceholder: false\n };\n\n // Validate and adjust position if needed\n const validatedStartTime = this.dragDropService.validateItemPosition(testItem, track.items);\n\n // Recalculate duration limit if position was adjusted\n const adjus****************ation = totalDuration - validatedStartTime;\n const adjustedDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n\n // Create the final non-overlapping item\n const newItem: MediaItem = {\n id: `item-${Date.now()}`,\n type: media.type,\n startTime: validatedStartTime,\n duration: adjustedDuration,\n trackId: this.mediaLibraryTargetTrackId,\n name: media.name,\n isPlaceholder: false\n };\n\n // Set maxDuration for audio and video\n if (media.type === MediaType.VIDEO) {\n newItem.maxDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n } else if (media.type === MediaType.AUDIO) {\n newItem.maxDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n }\n\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t =>\n t.id === this.mediaLibraryTargetTrackId\n ? { ...t, items: [...t.items, newItem] }\n : t\n )\n }));\n\n // Close the media library after selection\n this.closeMediaLibrary();\n }\n\n /**\n * Trim (split) the selected media item at the playhead position.\n * Creates two separate items from the original media.\n */\n trimSelectedMedia(): void {\n const currentState = this.state();\n const selectedItemId = currentState.selectedItemId;\n\n if (!selectedItemId) {\n return;\n }\n\n // Find the selected item and its track\n let selectedItem: MediaItem | null = null;\n let selectedTrack: Track | null = null;\n\n for (const track of currentState.tracks) {\n const item = track.items.find(i => i.id === selectedItemId);\n if (item) {\n selectedItem = item;\n selectedTrack = track;\n break;\n }\n }\n\n if (!selectedItem || !selectedTrack) {\n return;\n }\n\n const playheadTime = currentState.playheadPosition;\n const itemStart = selectedItem.startTime;\n const itemEnd = itemStart + selectedItem.duration;\n\n // Check if playhead is within the selected media item\n if (playheadTime <= itemStart || playheadTime >= itemEnd) {\n // Playhead is not within the selected media - show notification\n this.notificationsComponent?.showNotification(\n 'Position the playhead within the selected media to trim it.',\n 'warning'\n );\n return;\n }\n\n // Ensure both parts will have at least MIN_ITEM_DURATION\n const firstPartDuration = playheadTime - itemStart;\n const secondPartDuration = itemEnd - playheadTime;\n\n if (firstPartDuration < this.MIN_ITEM_DURATION || secondPartDuration < this.MIN_ITEM_DURATION) {\n this.notificationsComponent?.showNotification(\n 'Cannot trim: resulting parts would be too short.',\n 'warning'\n );\n return;\n }\n\n // Calculate mediaStartTime adjustments\n const origi************tTime = selectedItem.mediaStartTime || 0;\n const secon**************tTime = origi************tTime + firstPartDuration;\n\n // Create two new items from the original\n const firstPart: MediaItem = {\n ...selectedItem,\n id: `item-${Date.now()}-1`,\n duration: firstPartDuration\n // mediaStartTime stays the same for first part\n };\n\n const secondPart: MediaItem = {\n ...selectedItem,\n id: `item-${Date.now()}-2`,\n startTime: playheadTime,\n duration: secondPartDuration,\n mediaStartTime: secondPartMediaStartTime\n };\n\n // Update the state: remove original, add two new parts\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t => {\n if (t.id === selectedTrack!.id) {\n return {\n ...t,\n items: [\n ...t.items.filter(i => i.id !== selectedItemId),\n firstPart,\n secondPart\n ]\n };\n }\n return t;\n }),\n // Deselect after trimming\n selectedItemId: null\n }));\n\n this.notificationsComponent?.showNotification(\n 'Media trimmed successfully.',\n 'success'\n );\n }\n\n /**\n * Copy the selected media item to the clipboard.\n * Stores a copy of the item and the track it was copied from.\n */\n copySelectedMedia(): void {\n const currentState = this.state();\n const selectedItemId = currentState.selectedItemId;\n\n if (!selectedItemId) {\n return;\n }\n\n // Find the selected item and its track\n let selectedItem: MediaItem | null = null;\n let selectedTrackId: string | null = null;\n\n for (const track of currentState.tracks) {\n const item = track.items.find(i => i.id === selectedItemId);\n if (item) {\n selectedItem = item;\n selectedTrackId = track.id;\n break;\n }\n }\n\n if (!selectedItem || !selectedTrackId) {\n return;\n }\n\n // Store a copy of the item in clipboard\n this.clipboardItem.set({ ...selectedItem });\n this.clipboardSourceTrackId.set(selectedTrackId);\n\n this.notificationsComponent?.showNotification(\n 'Media copied to clipboard.',\n 'success'\n );\n }\n\n /**\n * Paste the clipboard media item at the playhead position.\n * Pastes on the same track where the item was copied from.\n * If there's no space at playhead position, finds the next available slot.\n */\n pasteMedia(): void {\n const copiedItem = this.clipboardItem();\n const sourceTrackId = this.clipboardSourceTrackId();\n\n if (!copiedItem || !sourceTrackId) {\n return;\n }\n\n const currentState = this.state();\n const playheadTime = currentState.playheadPosition;\n const totalDuration = currentState.totalDuration;\n\n // Find the source track\n let targetTrack = currentState.tracks.find(t => t.id === sourceTrackId);\n\n // If source track no longer exists, use the first track\n if (!targetTrack) {\n targetTrack = currentState.tracks[0];\n if (!targetTrack) {\n this.notificationsComponent?.showNotification(\n 'No tracks available to paste media.',\n 'error'\n );\n return;\n }\n }\n\n const itemDuration = copiedItem.duration;\n\n // Try to find a valid position starting from playhead\n const pastePosition = this.findPastePosition(\n playheadTime,\n itemDuration,\n targetTrack.items,\n totalDuration\n );\n\n if (pastePosition === null) {\n this.notificationsComponent?.showNotification(\n 'No space available to paste media on this track.',\n 'warning'\n );\n return;\n }\n\n // Create a new item with a new ID\n const newItem: MediaItem = {\n ...copiedItem,\n id: `item-${Date.now()}`,\n startTime: pastePosition,\n trackId: targetTrack.id\n };\n\n // Add the new item to the track\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t =>\n t.id === targetTrack!.id\n ? { ...t, items: [...t.items, newItem] }\n : t\n )\n }));\n\n this.notificationsComponent?.showNotification(\n 'Media pasted successfully.',\n 'success'\n );\n }\n\n /**\n * Find a valid position to paste media item.\n * First tries at the playhead position, then finds the next available gap.\n */\n private findPastePosition(\n preferredPosition: number,\n duration: number,\n existingItems: MediaItem[],\n totalDuration: number\n ): number | null {\n // Check if we can fit at the preferred position (playhead)\n if (this.canFitAtPosition(preferredPosition, duration, existingItems, totalDuration)) {\n return preferredPosition;\n }\n\n // Sort existing items by start time\n const sortedItems = [...existingItems].sort((a, b) => a.startTime - b.startTime);\n\n // Find all gaps on the track and try to place the item\n const gaps = this.dragDropService.findAllGaps(sortedItems);\n\n // First, try to find a gap that starts at or after the playhead\n for (const gap of gaps) {\n // Calculate actual gap size (considering totalDuration for infinite gaps)\n const effectiveGapEnd = gap.gapEnd === Infinity ? totalDuration : gap.gapEnd;\n const gapSize = effectiveGapEnd - gap.gapStart;\n\n if (gap.gapStart >= preferredPosition && gapSize >= duration) {\n return gap.gapStart;\n }\n }\n\n // If no gap after playhead, try any gap that can fit the item\n for (const gap of gaps) {\n // Calculate actual gap size (considering totalDuration for infinite gaps)\n const effectiveGapEnd = gap.gapEnd === Infinity ? totalDuration : gap.gapEnd;\n const gapSize = effectiveGapEnd - gap.gapStart;\n\n if (gapSize >= duration) {\n return gap.gapStart;\n }\n }\n\n // No suitable position found\n return null;\n }\n\n /**\n * Check if an item can fit at a specific position without overlapping.\n */\n private canFitAtPosition(\n position: number,\n duration: number,\n existingItems: MediaItem[],\n totalDuration: number\n ): boolean {\n // Check bounds\n if (position < 0 || position + duration > totalDuration) {\n return false;\n }\n\n // Check for overlaps with existing items\n const endPosition = position + duration;\n for (const item of existingItems) {\n const itemEnd = item.startTime + item.duration;\n // Check if there's an overlap\n if (position < itemEnd && endPosition > item.startTime) {\n return false;\n }\n }\n\n return true;\n }\n}\n", | |
| "structuredPatch": [ | |
| { | |
| "oldStart": 778, | |
| "oldLines": 21, | |
| "newStart": 778, | |
| "newLines": 43, | |
| "lines": [ | |
| " ", | |
| " // Video preview controls", | |
| " togglePlayback(): void {", | |
| "- this.isPlaying.update(playing => !playing);", | |
| "+ const currentState = this.state();", | |
| "+", | |
| "+ if (this.playbackService.isPlaying()) {", | |
| "+ this.playbackService.pause();", | |
| "+ this.isPlaying.set(false);", | |
| "+ } else {", | |
| "+ // Sync playhead position to PlaybackService before starting", | |
| "+ this.playbackService.setPlayheadPosition(currentState.playheadPosition);", | |
| "+ this.playbackService.play(currentState.tracks, currentState.totalDuration);", | |
| "+ this.isPlaying.set(true);", | |
| "+ }", | |
| " }", | |
| " ", | |
| " skipBackward(): void {", | |
| "+ const currentState = this.state();", | |
| "+ const newPosition = Math.max(0, currentState.playheadPosition - 5000);", | |
| "+", | |
| " this.state.update(s => ({", | |
| " ...s,", | |
| "- playheadPosition: Math.max(0, s.playheadPosition - 5000)", | |
| "+ playheadPosition: newPosition", | |
| " }));", | |
| "+", | |
| "+ // Sync position and update media", | |
| "+ this.playbackService.seek(currentState.tracks, newPosition);", | |
| " }", | |
| " ", | |
| " skipForward(): void {", | |
| "+ const currentState = this.state();", | |
| "+ const newPosition = Math.min(currentState.totalDuration, currentState.playheadPosition + 5000);", | |
| "+", | |
| " this.state.update(s => ({", | |
| " ...s,", | |
| "- playheadPosition: Math.min(s.totalDuration, s.playheadPosition + 5000)", | |
| "+ playheadPosition: newPosition", | |
| " }));", | |
| "+", | |
| "+ // Sync position and update media", | |
| "+ this.playbackService.seek(currentState.tracks, newPosition);", | |
| " }", | |
| " ", | |
| " // Duration editor methods" | |
| ] | |
| } | |
| ], | |
| "userModified": false, | |
| "replaceAll": false | |
| } | |
| } | |
| [2025-12-05T10:39:08.515Z] [INFO] { | |
| "type": "assistant", | |
| "message": { | |
| "model": "claude-opus-4-5-20251101", | |
| "id": "msg_0117SAjFkXo2sAmMcjCNoRWx", | |
| "type": "message", | |
| "role": "assistant", | |
| "content": [ | |
| { | |
| "type": "text", | |
| "text": "Now I need to update the ruler pointer events to also seek in the playback service when the playhead is moved. Let me update `onRulerPointerDown` and `onDocumentPointerMove`:" | |
| } | |
| ], | |
| "stop_reason": null, | |
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| } | |
| [2025-12-05T10:39:14.887Z] [INFO] { | |
| "type": "assistant", | |
| "message": { | |
| "model": "claude-opus-4-5-20251101", | |
| "id": "msg_0117SAjFkXo2sAmMcjCNoRWx", | |
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| { | |
| "type": "tool_use", | |
| "id": "toolu_01XnjBJ86wQEvprbAPjRNRR4", | |
| "name": "Edit", | |
| "input": { | |
| "file_path": "/tmp/gh-issue-solver-1764930855025/video-timeline/src/app/components/timeline/timeline.component.ts", | |
| "old_string": " // Playhead controls\n onRulerPointerDown(event: MouseEvent | TouchEvent): void {\n event.preventDefault();\n this.isDraggingFromRuler = true;\n\n // Immediately update position on pointer down\n const target = event.currentTarget as HTMLElement;\n const rect = target.getBoundingClientRect();\n const coords = this.getEventCoordinates(event);\n // Calculate position within the ruler element\n // getBoundingClientRect() already accounts for scroll, so we don't add scrollLeft\n const x = coords.clientX - rect.left;\n const newPosition = x / this.pixelsPerMillisecond();\n\n this.state.update(s => ({\n ...s,\n playheadPosition: Math.max(0, Math.min(newPosition, s.totalDuration))\n }));\n }", | |
| "new_string": " // Playhead controls\n onRulerPointerDown(event: MouseEvent | TouchEvent): void {\n event.preventDefault();\n this.isDraggingFromRuler = true;\n\n // Immediately update position on pointer down\n const target = event.currentTarget as HTMLElement;\n const rect = target.getBoundingClientRect();\n const coords = this.getEventCoordinates(event);\n // Calculate position within the ruler element\n // getBoundingClientRect() already accounts for scroll, so we don't add scrollLeft\n const x = coords.clientX - rect.left;\n const newPosition = x / this.pixelsPerMillisecond();\n const currentState = this.state();\n const clampedPosition = Math.max(0, Math.min(newPosition, currentState.totalDuration));\n\n this.state.update(s => ({\n ...s,\n playheadPosition: clampedPosition\n }));\n\n // Sync position to playback service for seeking\n this.playbackService.seek(currentState.tracks, clampedPosition);\n }" | |
| } | |
| } | |
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| "ephemeral_1h_input_tokens": 0 | |
| }, | |
| "output_tokens": 639, | |
| "service_tier": "standard" | |
| }, | |
| "context_management": { | |
| "applied_edits": [] | |
| } | |
| }, | |
| "parent_tool_use_id": null, | |
| "session_id": "d5b1bf94-1397-44f7-9390-3c57ba19d0b0", | |
| "uuid": "5ada56a9-80c6-4c48-aef9-c2108aedf478" | |
| } | |
| [2025-12-05T10:39:15.270Z] [INFO] { | |
| "type": "user", | |
| "message": { | |
| "role": "user", | |
| "content": [ | |
| { | |
| "tool_use_id": "toolu_01XnjBJ86wQEvprbAPjRNRR4", | |
| "type": "tool_result", | |
| "content": "The file /tmp/gh-issue-solver-1764930855025/video-timeline/src/app/components/timeline/timeline.component.ts has been updated. Here's the result of running `cat -n` on a snippet of the edited file:\n 221→ return { clientX: touch.clientX, clientY: touch.clientY };\n 222→ }\n 223→ }\n 224→\n 225→ // Playhead controls\n 226→ onRulerPointerDown(event: MouseEvent | TouchEvent): void {\n 227→ event.preventDefault();\n 228→ this.isDraggingFromRuler = true;\n 229→\n 230→ // Immediately update position on pointer down\n 231→ const target = event.currentTarget as HTMLElement;\n 232→ const rect = target.getBoundingClientRect();\n 233→ const coords = this.getEventCoordinates(event);\n 234→ // Calculate position within the ruler element\n 235→ // getBoundingClientRect() already accounts for scroll, so we don't add scrollLeft\n 236→ const x = coords.clientX - rect.left;\n 237→ const newPosition = x / this.pixelsPerMillisecond();\n 238→ const currentState = this.state();\n 239→ const clampedPosition = Math.max(0, Math.min(newPosition, currentState.totalDuration));\n 240→\n 241→ this.state.update(s => ({\n 242→ ...s,\n 243→ playheadPosition: clampedPosition\n 244→ }));\n 245→\n 246→ // Sync position to playback service for seeking\n 247→ this.playbackService.seek(currentState.tracks, clampedPosition);\n 248→ }\n 249→\n 250→ onPlayheadPointerDown(event: MouseEvent | TouchEvent): void {\n 251→ event.preventDefault();\n 252→ event.stopPropagation();" | |
| } | |
| ] | |
| }, | |
| "parent_tool_use_id": null, | |
| "session_id": "d5b1bf94-1397-44f7-9390-3c57ba19d0b0", | |
| "uuid": "1e105395-b1f3-4ccf-ad08-762fdf9b07cd", | |
| "tool_use_result": { | |
| "filePath": "/tmp/gh-issue-solver-1764930855025/video-timeline/src/app/components/timeline/timeline.component.ts", | |
| "oldString": " // Playhead controls\n onRulerPointerDown(event: MouseEvent | TouchEvent): void {\n event.preventDefault();\n this.isDraggingFromRuler = true;\n\n // Immediately update position on pointer down\n const target = event.currentTarget as HTMLElement;\n const rect = target.getBoundingClientRect();\n const coords = this.getEventCoordinates(event);\n // Calculate position within the ruler element\n // getBoundingClientRect() already accounts for scroll, so we don't add scrollLeft\n const x = coords.clientX - rect.left;\n const newPosition = x / this.pixelsPerMillisecond();\n\n this.state.update(s => ({\n ...s,\n playheadPosition: Math.max(0, Math.min(newPosition, s.totalDuration))\n }));\n }", | |
| "newString": " // Playhead controls\n onRulerPointerDown(event: MouseEvent | TouchEvent): void {\n event.preventDefault();\n this.isDraggingFromRuler = true;\n\n // Immediately update position on pointer down\n const target = event.currentTarget as HTMLElement;\n const rect = target.getBoundingClientRect();\n const coords = this.getEventCoordinates(event);\n // Calculate position within the ruler element\n // getBoundingClientRect() already accounts for scroll, so we don't add scrollLeft\n const x = coords.clientX - rect.left;\n const newPosition = x / this.pixelsPerMillisecond();\n const currentState = this.state();\n const clampedPosition = Math.max(0, Math.min(newPosition, currentState.totalDuration));\n\n this.state.update(s => ({\n ...s,\n playheadPosition: clampedPosition\n }));\n\n // Sync position to playback service for seeking\n this.playbackService.seek(currentState.tracks, clampedPosition);\n }", | |
| "originalFile": "import { Component, signal, computed, ViewChild, ElementRef, AfterViewInit, OnDestroy, effect } from '@angular/core';\nimport { CommonModule } from '@angular/common';\nimport { MediaType, MediaItem, Track, TimelineState } from '../../models/timeline.models';\nimport { MediaLibraryComponent, MediaLibraryItem } from '../media-library/media-library.component';\nimport { Media***********onent } from '../media-toolbar/media-toolbar.component';\nimport { Notif************onent } from '../notifications/notifications.component';\nimport { Timel*************rvice } from '../../services/timeline-drag-drop.service';\nimport { PlaybackService } from '../../services/playback.service';\n\n@Component({\n selector: 'app-timeline',\n standalone: true,\n imports: [CommonModule, MediaLibraryComponent, MediaToolbarComponent, NotificationsComponent],\n templateUrl: './timeline.component.html',\n styleUrl: './timeline.component.css'\n})\nexport class TimelineComponent implements AfterViewInit, OnDestroy {\n // Zoom levels: pixels per second\n private readonly MIN_ZOOM = 10;\n private readonly MAX_ZOOM = 200;\n private readonly ZOOM_STEP = 20;\n readonly TRACK_HEADER_WIDTH = 150; // Width of track header in pixels\n private readonly SNAP_PROXIMITY_MS = 500; // Snap to item if playhead is within 500ms\n private readonly MIN_ITEM_DURATION = 100; // Minimum item duration in milliseconds\n\n // Canvas dimensions for preview\n readonly PREVIEW_WIDTH = 640;\n readonly PREVIEW_HEIGHT = 360;\n\n // View references\n @ViewChild('timelineRuler') timelineRuler?: ElementRef<HTMLElement>;\n @ViewChild('notifications') notificationsComponent?: NotificationsComponent;\n @ViewChild('previewCanvas') previewCanvas?: ElementRef<HTMLCanvasElement>;\n\n // Timeline state\n readonly state = signal<TimelineState>({\n tracks: [\n { id: '1', name: 'Track 1', order: 0, items: [] },\n { id: '2', name: 'Track 2', order: 1, items: [] }\n ],\n playheadPosition: 0,\n zoomLevel: 50, // pixels per second\n totalDuration: 120000, // 120 seconds in milliseconds\n selectedItemId: null\n });\n\n // Computed values\n readonly pixel**********econd = computed(() => {\n return this.state().zoomLevel / 1000;\n });\n\n readonly timelineWidth = computed(() => {\n const state = this.state();\n // Calculate the maximum end time across all tracks\n let maxEndTime = state.totalDuration;\n\n for (const track of state.tracks) {\n for (const item of track.items) {\n const itemEndTime = item.startTime + item.duration;\n if (itemEndTime > maxEndTime) {\n maxEndTime = itemEndTime;\n }\n }\n }\n\n return maxEndTime * this.pixelsPerMillisecond();\n });\n\n readonly timelineLineHeight = computed(() => {\n const state = this.state();\n return state.tracks.length * 60 + 32;\n });\n\n readonly playheadPosition = computed(() => {\n return this.state().playheadPosition * this.pixelsPerMillisecond();\n });\n\n readonly playh************ition = computed(() => {\n return this.playheadPosition() + this.TRACK_HEADER_WIDTH;\n });\n\n // Computed: whether a media item is currently selected\n readonly hasSelectedItem = computed(() => {\n return this.state().selectedItemId !== null;\n });\n\n // Dragging state\n private draggedItem: MediaItem | null = null;\n private draggedItemOriginalTrackId: string | null = null;\n private dragOffsetTime: number = 0; // Offset in milliseconds from item start to cursor position\n private isDraggingPlayhead = false;\n private isDraggingFromRuler = false;\n private resizingItem: { item: MediaItem; edge: 'left' | 'right' } | null = null;\n private mouseDownPosition: { x: number; y: number } | null = null; // Track mouse down position for click detection\n\n // Video preview state\n readonly isPlaying = signal<boolean>(false);\n\n // Duration editor state\n readonly showDurationEditor = signal<boolean>(false);\n private editedDuration: number = 120; // Duration in seconds\n\n // Media library state\n readonly showMediaLibrary = signal<boolean>(false);\n private mediaLibraryTargetTrackId: string | null = null;\n\n // Clipboard state for copy/paste functionality\n private readonly clipboardItem = signal<MediaItem | null>(null);\n private readonly clipb************ackId = signal<string | null>(null);\n\n // Computed: whether a media item is in clipboard\n readonly hasClipboardItem = computed(() => {\n return this.clipboardItem() !== null;\n });\n\n // Render loop ID for cleanup\n private renderLoopId: number | null = null;\n\n constructor(\n private dragDropService: TimelineDragDropService,\n public playbackService: PlaybackService\n ) {\n // Effect to sync playhead position from PlaybackService during playback\n effect(() => {\n if (this.playbackService.isPlaying()) {\n const position = this.playbackService.playheadPosition();\n this.state.update(s => ({\n ...s,\n playheadPosition: position\n }));\n }\n });\n }\n\n ngAfterViewInit(): void {\n // Initialize canvas for preview rendering\n if (this.previewCanvas) {\n this.playbackService.setCanvas(this.previewCanvas.nativeElement);\n }\n\n // Start continuous render loop for preview (renders current frame even when paused)\n this.startRenderLoop();\n }\n\n ngOnDestroy(): void {\n // Clean up render loop\n if (this.renderLoopId !== null) {\n cancelAnimationFrame(this.renderLoopId);\n this.renderLoopId = null;\n }\n\n // Stop playback\n this.playbackService.stop();\n }\n\n /**\n * Continuous render loop for preview canvas.\n * Keeps rendering even when paused so seeking updates the preview.\n */\n private startRenderLoop(): void {\n const render = () => {\n // Only render if we have active media and are not playing\n // (PlaybackService handles rendering during playback)\n if (!this.playbackService.isPlaying()) {\n this.playbackService.renderCurrentFrame();\n }\n this.renderLoopId = requestAnimationFrame(render);\n };\n this.renderLoopId = requestAnimationFrame(render);\n }\n\n // Track management\n addTrack(): void {\n const currentState = this.state();\n const newTrack: Track = {\n id: `track-${Date.now()}`,\n name: `Track ${currentState.tracks.length + 1}`,\n order: currentState.tracks.length,\n items: []\n };\n\n this.state.update(s => ({\n ...s,\n tracks: [...s.tracks, newTrack]\n }));\n }\n\n removeTrack(trackId: string): void {\n const currentState = this.state();\n if (currentState.tracks.length <= 1) {\n return; // Keep at least one track\n }\n\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.filter(t => t.id !== trackId)\n }));\n }\n\n // Zoom controls\n zoomIn(): void {\n this.state.update(s => ({\n ...s,\n zoomLevel: Math.min(s.zoomLevel + this.ZOOM_STEP, this.MAX_ZOOM)\n }));\n }\n\n zoomOut(): void {\n this.state.update(s => ({\n ...s,\n zoomLevel: Math.max(s.zoomLevel - this.ZOOM_STEP, this.MIN_ZOOM)\n }));\n }\n\n // Utility method to extract coordinates from mouse or touch events\n private getEventCoordinates(event: MouseEvent | TouchEvent): { clientX: number; clientY: number } {\n if (event instanceof MouseEvent) {\n return { clientX: event.clientX, clientY: event.clientY };\n } else {\n const touch = event.touches[0] || event.changedTouches[0];\n return { clientX: touch.clientX, clientY: touch.clientY };\n }\n }\n\n // Playhead controls\n onRulerPointerDown(event: MouseEvent | TouchEvent): void {\n event.preventDefault();\n this.isDraggingFromRuler = true;\n\n // Immediately update position on pointer down\n const target = event.currentTarget as HTMLElement;\n const rect = target.getBoundingClientRect();\n const coords = this.getEventCoordinates(event);\n // Calculate position within the ruler element\n // getBoundingClientRect() already accounts for scroll, so we don't add scrollLeft\n const x = coords.clientX - rect.left;\n const newPosition = x / this.pixelsPerMillisecond();\n\n this.state.update(s => ({\n ...s,\n playheadPosition: Math.max(0, Math.min(newPosition, s.totalDuration))\n }));\n }\n\n onPlayheadPointerDown(event: MouseEvent | TouchEvent): void {\n event.preventDefault();\n event.stopPropagation();\n this.isDraggingPlayhead = true;\n }\n\n\n // Media item drag and drop\n onMediaItemPointerDown(event: MouseEvent | TouchEvent, item: MediaItem, track: Track): void {\n const target = event.target as HTMLElement;\n\n // Check if clicking/touching on resize handle\n if (target.classList.contains('resize-handle')) {\n this.resizingItem = {\n item,\n edge: target.classList.contains('resize-handle-left') ? 'left' : 'right'\n };\n event.preventDefault();\n return;\n }\n\n const coords = this.getEventCoordinates(event);\n this.mouseDownPosition = { x: coords.clientX, y: coords.clientY };\n\n const mediaItemElement = event.currentTarget as HTMLElement;\n const rect = mediaItemElement.getBoundingClientRect();\n const clickX = coords.clientX - rect.left;\n\n // Convert pixel offset to time offset\n this.dragOffsetTime = clickX / this.pixelsPerMillisecond();\n\n this.draggedItem = item;\n this.draggedItemOriginalTrackId = track.id;\n event.preventDefault();\n }\n\n onTrackPointerDown(event: MouseEvent | TouchEvent): void {\n // Deselect when clicking/touching track background (not on media item)\n const target = event.target as HTMLElement;\n if (target.classList.contains('track')) {\n this.deselectMediaItem();\n }\n }\n\n onTrackPointerMove(event: MouseEvent | TouchEvent, track: Track): void {\n if (this.resizingItem) {\n this.handleResize(event, track);\n return;\n }\n event.preventDefault();\n event.stopPropagation();\n\n if (!this.draggedItem) return;\n\n const coords = this.getEventCoordinates(event);\n const target = event.currentTarget as HTMLElement;\n const rect = target.getBoundingClientRect();\n const x = coords.clientX - rect.left;\n const requestedStartTime = Math.max(0, x / this.pixelsPerMillisecond() - this.dragOffsetTime);\n\n this.state.update(s => {\n const updatedTracks = s.tracks.map(t => {\n if (t.id === track.id) {\n // Get all items except the dragged one for collision detection\n const otherItems = t.items.filter(i => i.id !== this.draggedItem!.id);\n\n // Fix for issue #81: Find snap targets (playhead and items on all tracks)\n const snapTargets = this.dragDropService.findSnapTargets(\n this.draggedItem!.id,\n s.tracks,\n s.playheadPosition\n );\n\n // Calculate valid position and duration considering collisions, gap fitting, and snapping\n const validPosition = this.dragDropService.getValidDragPosition(\n this.draggedItem!,\n requestedStartTime,\n otherItems,\n s.totalDuration,\n snapTargets\n );\n\n // Check if item already exists in this track\n const itemExists = t.items.some(i => i.id === this.draggedItem!.id);\n\n if (itemExists) {\n // Update position and duration in current track\n return {\n ...t,\n items: t.items.map(i =>\n i.id === this.draggedItem!.id\n ? {\n ...i,\n startTime: validPosition.startTime,\n duration: validPosition.duration,\n trackId: track.id\n }\n : i\n )\n };\n } else {\n // Add to new track with adjusted position and duration\n return {\n ...t,\n items: [\n ...otherItems,\n {\n ...this.draggedItem!,\n startTime: validPosition.startTime,\n duration: validPosition.duration,\n trackId: track.id\n }\n ]\n };\n }\n } else if (t.id === this.draggedItemOriginalTrackId && t.id !== track.id) {\n // Remove from original track only if moving to different track\n return {\n ...t,\n items: t.items.filter(i => i.id !== this.draggedItem!.id)\n };\n }\n return t;\n });\n\n // Update the original track ID to current track for smooth dragging within same track\n this.draggedItemOriginalTrackId = track.id;\n\n return { ...s, tracks: updatedTracks };\n });\n }\n\n private handleResize(event: MouseEvent | TouchEvent, track: Track): void {\n if (!this.resizingItem) return;\n\n const coords = this.getEventCoordinates(event);\n const target = event.currentTarget as HTMLElement;\n const rect = target.getBoundingClientRect();\n // Fix for issue #83: getBoundingClientRect() returns viewport-relative coordinates,\n // and coords.clientX is also viewport-relative, so we don't need to add scrollLeft\n const x = coords.clientX - rect.left;\n const timeAtCursor = x / this.pixelsPerMillisecond();\n\n this.state.update(s => {\n // Fix for issue #87: Find snap targets for resize operations\n const snapTargets = this.dragDropService.findSnapTargets(\n this.resizingItem!.item.id,\n s.tracks,\n s.playheadPosition\n );\n\n const updatedTracks = s.tracks.map(t => {\n if (t.id === track.id) {\n // Get resize bounds considering adjacent items\n const bounds = this.dragDropService.getResizeBounds(\n this.resizingItem!.item,\n t.items,\n this.resizingItem!.edge,\n s.totalDuration\n );\n\n return {\n ...t,\n items: t.items.map(i => {\n if (i.id === this.resizingItem!.item.id) {\n if (this.resizingItem!.edge === 'left') {\n // Fix for issue #89: Handle mediaStartTime when resizing from left\n // Apply snapping to left edge (start time)\n let newStartTime = Math.max(\n bounds.minTime,\n Math.min(timeAtCursor, bounds.maxTime)\n );\n\n // Apply snapping if within snap distance\n let minDistance = this.dragDropService.SNAP_DISTANCE_MS;\n for (const target of snapTargets) {\n const distance = Math.abs(newStartTime - target);\n if (distance < minDistance) {\n minDistance = distance;\n // Only snap if within bounds\n if (target >= bounds.minTime && target <= bounds.maxTime) {\n newStartTime = target;\n }\n }\n }\n\n // Calculate how much the timeline position is changing\n const deltaTime = newStartTime - i.startTime;\n const newDuration = i.duration - deltaTime;\n\n // Update media start time (trimming from source media)\n const curre***********tTime = i.mediaStartTime || 0;\n const newMediaStartTime = curre***********tTime + deltaTime;\n\n // Check if we're trying to extend beyond the start of source media\n if (newMediaStartTime < 0) {\n // Can only extend left by curre***********tTime amount\n const maxExtension = currentMediaStartTime;\n const finalStartTime = i.startTime - maxExtension;\n const finalDuration = i.duration + maxExtension;\n\n // Ensure we don't exceed maxDuration\n if (i.maxDuration && finalDuration > i.maxDuration) {\n return {\n ...i,\n startTime: finalStartTime + (finalDuration - i.maxDuration),\n duration: i.maxDuration,\n mediaStartTime: 0\n };\n }\n\n return {\n ...i,\n startTime: finalStartTime,\n duration: finalDuration,\n mediaStartTime: 0\n };\n }\n\n // Ensure media end doesn't exceed maxDuration\n if (i.maxDuration && newMediaStartTime + newDuration > i.maxDuration) {\n const maxAllowedDuration = i.maxDuration - newMediaStartTime;\n return {\n ...i,\n startTime: i.startTime + (i.duration - maxAllowedDuration),\n duration: maxAllowedDuration,\n mediaStartTime: newMediaStartTime\n };\n }\n\n return {\n ...i,\n startTime: newStartTime,\n duration: newDuration,\n mediaStartTime: newMediaStartTime\n };\n } else {\n // Fix for issue #87: Apply snapping to right edge (end time)\n let newEndTime = Math.max(\n bounds.minTime,\n Math.min(timeAtCursor, bounds.maxTime)\n );\n\n // Apply snapping if within snap distance\n let minDistance = this.dragDropService.SNAP_DISTANCE_MS;\n for (const target of snapTargets) {\n const distance = Math.abs(newEndTime - target);\n if (distance < minDistance) {\n minDistance = distance;\n // Only snap if within bounds\n if (target >= bounds.minTime && target <= bounds.maxTime) {\n newEndTime = target;\n }\n }\n }\n\n const newDuration = newEndTime - i.startTime;\n\n // Limit duration by maxDuration if specified\n const limitedDuration = i.maxDuration\n ? Math.min(newDuration, i.maxDuration)\n : newDuration;\n\n return { ...i, duration: limitedDuration };\n }\n }\n return i;\n })\n };\n }\n return t;\n });\n\n return { ...s, tracks: updatedTracks };\n });\n }\n\n onPointerUp(event: MouseEvent | TouchEvent): void {\n // Detect if this was a click/tap (not a drag) on a media item\n if (this.draggedItem && this.mouseDownPosition) {\n const coords = this.getEventCoordinates(event);\n const dx = coords.clientX - this.mouseDownPosition.x;\n const dy = coords.clientY - this.mouseDownPosition.y;\n const distance = Math.sqrt(dx * dx + dy * dy);\n\n // If pointer moved less than 5 pixels, consider it a click/tap\n if (distance < 5) {\n this.selectMediaItem(this.draggedItem.id);\n }\n }\n\n this.draggedItem = null;\n this.draggedItemOriginalTrackId = null;\n this.dragOffsetTime = 0;\n this.isDraggingPlayhead = false;\n this.isDraggingFromRuler = false;\n this.resizingItem = null;\n this.mouseDownPosition = null;\n }\n\n onDocumentPointerMove(event: MouseEvent | TouchEvent): void {\n if (this.isDraggingPlayhead || this.isDraggingFromRuler) {\n // Fix for issue #50: Use ViewChild reference to ensure we use the exact same element as onRulerPointerDown\n if (!this.timelineRuler) {\n return;\n }\n\n const coords = this.getEventCoordinates(event);\n const rulerElement = this.timelineRuler.nativeElement;\n // Use the same calculation as onRulerPointerDown\n // getBoundingClientRect() already accounts for scroll, so we don't add scrollLeft\n const rect = rulerElement.getBoundingClientRect();\n const x = coords.clientX - rect.left;\n const newPosition = x / this.pixelsPerMillisecond();\n\n this.state.update(s => ({\n ...s,\n playheadPosition: Math.max(0, Math.min(newPosition, s.totalDuration))\n }));\n }\n\n // Fix for issue #96: Handle media item dragging and resizing at document level for touch events\n // This allows dragging between tracks on mobile devices\n if (event instanceof TouchEvent) {\n if (this.draggedItem) {\n // Find which track the touch is currently over\n const targetTrack = this.findTrackAtCoordinates(this.getEventCoordinates(event));\n if (targetTrack) {\n // Reuse existing drag logic\n this.onTrackPointerMove(event, targetTrack);\n }\n } else if (this.resizingItem) {\n // Find the track that contains the resizing item\n const targetTrack = this.findTrackContainingItem(this.resizingItem.item.id);\n if (targetTrack) {\n // Reuse existing resize logic\n this.handleResize(event, targetTrack);\n }\n }\n }\n }\n\n // Helper method to find which track is at the given Y coordinate\n private findTrackAtCoordinates(coords: { clientX: number; clientY: number }): Track | null {\n const trackElements = document.querySelectorAll('.track');\n for (const trackElement of Array.from(trackElements)) {\n const rect = trackElement.getBoundingClientRect();\n if (coords.clientY >= rect.top && coords.clientY <= rect.bottom) {\n const trackIndex = Array.from(trackElements).indexOf(trackElement);\n const tracks = this.state().tracks;\n if (trackIndex >= 0 && trackIndex < tracks.length) {\n return tracks[trackIndex];\n }\n }\n }\n return null;\n }\n\n // Helper method to find the track containing a specific item\n private findTrackContainingItem(itemId: string): Track | null {\n const currentState = this.state();\n for (const track of currentState.tracks) {\n if (track.items.some(item => item.id === itemId)) {\n return track;\n }\n }\n return null;\n }\n\n // Helper methods\n getItemStyle(item: MediaItem) {\n return {\n left: `${item.startTime * this.pixelsPerMillisecond()}px`,\n width: `${item.duration * this.pixelsPerMillisecond()}px`\n };\n }\n\n getMediaTypeClass(type: MediaType): string {\n return `media-${type}`;\n }\n\n formatTime(milliseconds: number): string {\n const seconds = Math.floor(milliseconds / 1000);\n const minutes = Math.floor(seconds / 60);\n const remainingSeconds = seconds % 60;\n const cs = Math.floor((milliseconds % 1000) / 10);\n return `${minutes}:${remainingSeconds.toString().padStart(2, '0')}.${cs.toString().padStart(2, '0')}`;\n }\n\n /**\n * Calculate appropriate time interval for markers based on zoom level\n * to prevent marker labels from overlapping\n */\n private getMarkerInterval(): number {\n // Minimum spacing between markers in pixels to prevent overlap\n // Enough space for \"0:00.000\" text (about 50-60px)\n const MIN_M***********NG_PX = 60;\n\n // Calculate how much time represents MIN_M***********NG_PX at current zoom\n const pixelsPerMs = this.pixelsPerMillisecond();\n const minTimeSpacing = MIN_M***********NG_PX / pixelsPerMs;\n\n // Define possible intervals (in ms): 100ms, 250ms, 500ms, 1s, 2s, 5s, 10s, 30s, 60s\n const intervals = [100, 250, 500, 1000, 2000, 5000, 10000, 30000, 60000];\n\n // Find the smallest interval that's larger than or equal to minTimeSpacing\n for (const interval of intervals) {\n if (interval >= minTimeSpacing) {\n return interval;\n }\n }\n\n // If even 60s is too small, use larger intervals\n return Math.ceil(minTimeSpacing / 60000) * 60000;\n }\n\n getTimeMarkers(): { position: number; label: string }[] {\n const markers: { position: number; label: string }[] = [];\n const stepMs = this.getMarkerInterval(); // Dynamic interval based on zoom level\n\n // Fix for issue #85: Do not show the last time mark at totalDuration\n // to prevent container expansion from the text label\n for (let time = 0; time < this.state().totalDuration; time += stepMs) {\n markers.push({\n position: time * this.pixelsPerMillisecond(),\n label: this.formatTime(time)\n });\n }\n\n return markers;\n }\n\n // Add placeholder media item\n addMediaItem(type: MediaType, trackId: string): void {\n const currentState = this.state();\n const track = currentState.tracks.find(t => t.id === trackId);\n\n if (!track) return;\n\n const playheadTime = currentState.playheadPosition;\n const totalDuration = currentState.totalDuration;\n const newItemDuration = type === MediaType.IMAGE ? 5000 : 3000;\n\n // Determine the start time for the new item using the service\n const startTime = this.dragDropService.calculateNewItemStartTime(\n playheadTime,\n track.items,\n this.SNAP_PROXIMITY_MS\n );\n\n // Fix for issue #48: Ensure new item doesn't exceed totalDuration\n const maxAllowedDuration = totalDuration - startTime;\n const finalDuration = Math.min(newItemDuration, maxAllowedDuration);\n\n // Fix for issue #64: Verify that the new item doesn't overlap with any existing items\n const testItem: MediaItem = {\n id: 'temp',\n type,\n startTime,\n duration: finalDuration,\n trackId,\n name: '',\n isPlaceholder: true\n };\n\n // Validate and adjust position if needed\n const validatedStartTime = this.dragDropService.validateItemPosition(testItem, track.items);\n\n // Recalculate duration limit if position was adjusted\n const adjus****************ation = totalDuration - validatedStartTime;\n const adjustedDuration = Math.min(newItemDuration, adjustedMaxAllowedDuration);\n\n // Create the final non-overlapping item\n const newItem: MediaItem = {\n id: `item-${Date.now()}`,\n type,\n startTime: validatedStartTime,\n duration: adjustedDuration,\n trackId,\n name: `${type} placeholder`,\n isPlaceholder: true\n };\n\n // Set maxDuration for audio and video placeholders\n if (type === MediaType.VIDEO) {\n newItem.maxDuration = Math.min(10000, adjustedMaxAllowedDuration); // 10 seconds default for video\n } else if (type === MediaType.AUDIO) {\n newItem.maxDuration = Math.min(15000, adjustedMaxAllowedDuration); // 15 seconds default for audio\n }\n\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t =>\n t.id === trackId\n ? { ...t, items: [...t.items, newItem] }\n : t\n )\n }));\n }\n\n removeMediaItem(itemId: string, trackId: string): void {\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t =>\n t.id === trackId\n ? { ...t, items: t.items.filter(i => i.id !== itemId) }\n : t\n ),\n // Deselect if removing selected item\n selectedItemId: s.selectedItemId === itemId ? null : s.selectedItemId\n }));\n }\n\n // Media selection\n selectMediaItem(itemId: string): void {\n this.state.update(s => ({\n ...s,\n selectedItemId: itemId\n }));\n }\n\n deselectMediaItem(): void {\n this.state.update(s => ({\n ...s,\n selectedItemId: null\n }));\n }\n\n isItemSelected(itemId: string): boolean {\n return this.state().selectedItemId === itemId;\n }\n\n readonly MediaType = MediaType;\n\n // Video preview controls\n togglePlayback(): void {\n const currentState = this.state();\n\n if (this.playbackService.isPlaying()) {\n this.playbackService.pause();\n this.isPlaying.set(false);\n } else {\n // Sync playhead position to PlaybackService before starting\n this.playbackService.setPlayheadPosition(currentState.playheadPosition);\n this.playbackService.play(currentState.tracks, currentState.totalDuration);\n this.isPlaying.set(true);\n }\n }\n\n skipBackward(): void {\n const currentState = this.state();\n const newPosition = Math.max(0, currentState.playheadPosition - 5000);\n\n this.state.update(s => ({\n ...s,\n playheadPosition: newPosition\n }));\n\n // Sync position and update media\n this.playbackService.seek(currentState.tracks, newPosition);\n }\n\n skipForward(): void {\n const currentState = this.state();\n const newPosition = Math.min(currentState.totalDuration, currentState.playheadPosition + 5000);\n\n this.state.update(s => ({\n ...s,\n playheadPosition: newPosition\n }));\n\n // Sync position and update media\n this.playbackService.seek(currentState.tracks, newPosition);\n }\n\n // Duration editor methods\n openDurationEditor(): void {\n this.editedDuration = this.state().totalDuration / 1000;\n this.showDurationEditor.set(true);\n }\n\n closeDurationEditor(): void {\n this.showDurationEditor.set(false);\n }\n\n onDurationInputChange(event: Event): void {\n const input = event.target as HTMLInputElement;\n const value = parseFloat(input.value);\n if (!isNaN(value) && value > 0) {\n this.editedDuration = value;\n }\n }\n\n saveDuration(): void {\n const newDurationMs = Math.max(1000, this.editedDuration * 1000); // At least 1 second\n this.state.update(s => ({\n ...s,\n totalDuration: newDurationMs,\n // Ensure playhead doesn't exceed new duration\n playheadPosition: Math.min(s.playheadPosition, newDurationMs)\n }));\n this.closeDurationEditor();\n }\n\n // Media library methods\n openMediaLibrary(trackId: string): void {\n this.mediaLibraryTargetTrackId = trackId;\n this.showMediaLibrary.set(true);\n }\n\n closeMediaLibrary(): void {\n this.showMediaLibrary.set(false);\n this.mediaLibraryTargetTrackId = null;\n }\n\n onMediaSelected(media: MediaLibraryItem): void {\n if (!this.mediaLibraryTargetTrackId) return;\n\n const currentState = this.state();\n const track = currentState.tracks.find(t => t.id === this.mediaLibraryTargetTrackId);\n\n if (!track) return;\n\n const playheadTime = currentState.playheadPosition;\n const totalDuration = currentState.totalDuration;\n\n // Determine the start time for the new item using the service\n const startTime = this.dragDropService.calculateNewItemStartTime(\n playheadTime,\n track.items,\n this.SNAP_PROXIMITY_MS\n );\n\n // Ensure item doesn't exceed totalDuration\n const maxAllowedDuration = totalDuration - startTime;\n const finalDuration = Math.min(media.duration, maxAllowedDuration);\n\n // Verify that the new item doesn't overlap with any existing items\n const testItem: MediaItem = {\n id: 'temp',\n type: media.type,\n startTime,\n duration: finalDuration,\n trackId: this.mediaLibraryTargetTrackId,\n name: '',\n isPlaceholder: false\n };\n\n // Validate and adjust position if needed\n const validatedStartTime = this.dragDropService.validateItemPosition(testItem, track.items);\n\n // Recalculate duration limit if position was adjusted\n const adjus****************ation = totalDuration - validatedStartTime;\n const adjustedDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n\n // Create the final non-overlapping item\n const newItem: MediaItem = {\n id: `item-${Date.now()}`,\n type: media.type,\n startTime: validatedStartTime,\n duration: adjustedDuration,\n trackId: this.mediaLibraryTargetTrackId,\n name: media.name,\n isPlaceholder: false\n };\n\n // Set maxDuration for audio and video\n if (media.type === MediaType.VIDEO) {\n newItem.maxDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n } else if (media.type === MediaType.AUDIO) {\n newItem.maxDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n }\n\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t =>\n t.id === this.mediaLibraryTargetTrackId\n ? { ...t, items: [...t.items, newItem] }\n : t\n )\n }));\n\n // Close the media library after selection\n this.closeMediaLibrary();\n }\n\n /**\n * Trim (split) the selected media item at the playhead position.\n * Creates two separate items from the original media.\n */\n trimSelectedMedia(): void {\n const currentState = this.state();\n const selectedItemId = currentState.selectedItemId;\n\n if (!selectedItemId) {\n return;\n }\n\n // Find the selected item and its track\n let selectedItem: MediaItem | null = null;\n let selectedTrack: Track | null = null;\n\n for (const track of currentState.tracks) {\n const item = track.items.find(i => i.id === selectedItemId);\n if (item) {\n selectedItem = item;\n selectedTrack = track;\n break;\n }\n }\n\n if (!selectedItem || !selectedTrack) {\n return;\n }\n\n const playheadTime = currentState.playheadPosition;\n const itemStart = selectedItem.startTime;\n const itemEnd = itemStart + selectedItem.duration;\n\n // Check if playhead is within the selected media item\n if (playheadTime <= itemStart || playheadTime >= itemEnd) {\n // Playhead is not within the selected media - show notification\n this.notificationsComponent?.showNotification(\n 'Position the playhead within the selected media to trim it.',\n 'warning'\n );\n return;\n }\n\n // Ensure both parts will have at least MIN_ITEM_DURATION\n const firstPartDuration = playheadTime - itemStart;\n const secondPartDuration = itemEnd - playheadTime;\n\n if (firstPartDuration < this.MIN_ITEM_DURATION || secondPartDuration < this.MIN_ITEM_DURATION) {\n this.notificationsComponent?.showNotification(\n 'Cannot trim: resulting parts would be too short.',\n 'warning'\n );\n return;\n }\n\n // Calculate mediaStartTime adjustments\n const origi************tTime = selectedItem.mediaStartTime || 0;\n const secon**************tTime = origi************tTime + firstPartDuration;\n\n // Create two new items from the original\n const firstPart: MediaItem = {\n ...selectedItem,\n id: `item-${Date.now()}-1`,\n duration: firstPartDuration\n // mediaStartTime stays the same for first part\n };\n\n const secondPart: MediaItem = {\n ...selectedItem,\n id: `item-${Date.now()}-2`,\n startTime: playheadTime,\n duration: secondPartDuration,\n mediaStartTime: secondPartMediaStartTime\n };\n\n // Update the state: remove original, add two new parts\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t => {\n if (t.id === selectedTrack!.id) {\n return {\n ...t,\n items: [\n ...t.items.filter(i => i.id !== selectedItemId),\n firstPart,\n secondPart\n ]\n };\n }\n return t;\n }),\n // Deselect after trimming\n selectedItemId: null\n }));\n\n this.notificationsComponent?.showNotification(\n 'Media trimmed successfully.',\n 'success'\n );\n }\n\n /**\n * Copy the selected media item to the clipboard.\n * Stores a copy of the item and the track it was copied from.\n */\n copySelectedMedia(): void {\n const currentState = this.state();\n const selectedItemId = currentState.selectedItemId;\n\n if (!selectedItemId) {\n return;\n }\n\n // Find the selected item and its track\n let selectedItem: MediaItem | null = null;\n let selectedTrackId: string | null = null;\n\n for (const track of currentState.tracks) {\n const item = track.items.find(i => i.id === selectedItemId);\n if (item) {\n selectedItem = item;\n selectedTrackId = track.id;\n break;\n }\n }\n\n if (!selectedItem || !selectedTrackId) {\n return;\n }\n\n // Store a copy of the item in clipboard\n this.clipboardItem.set({ ...selectedItem });\n this.clipboardSourceTrackId.set(selectedTrackId);\n\n this.notificationsComponent?.showNotification(\n 'Media copied to clipboard.',\n 'success'\n );\n }\n\n /**\n * Paste the clipboard media item at the playhead position.\n * Pastes on the same track where the item was copied from.\n * If there's no space at playhead position, finds the next available slot.\n */\n pasteMedia(): void {\n const copiedItem = this.clipboardItem();\n const sourceTrackId = this.clipboardSourceTrackId();\n\n if (!copiedItem || !sourceTrackId) {\n return;\n }\n\n const currentState = this.state();\n const playheadTime = currentState.playheadPosition;\n const totalDuration = currentState.totalDuration;\n\n // Find the source track\n let targetTrack = currentState.tracks.find(t => t.id === sourceTrackId);\n\n // If source track no longer exists, use the first track\n if (!targetTrack) {\n targetTrack = currentState.tracks[0];\n if (!targetTrack) {\n this.notificationsComponent?.showNotification(\n 'No tracks available to paste media.',\n 'error'\n );\n return;\n }\n }\n\n const itemDuration = copiedItem.duration;\n\n // Try to find a valid position starting from playhead\n const pastePosition = this.findPastePosition(\n playheadTime,\n itemDuration,\n targetTrack.items,\n totalDuration\n );\n\n if (pastePosition === null) {\n this.notificationsComponent?.showNotification(\n 'No space available to paste media on this track.',\n 'warning'\n );\n return;\n }\n\n // Create a new item with a new ID\n const newItem: MediaItem = {\n ...copiedItem,\n id: `item-${Date.now()}`,\n startTime: pastePosition,\n trackId: targetTrack.id\n };\n\n // Add the new item to the track\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t =>\n t.id === targetTrack!.id\n ? { ...t, items: [...t.items, newItem] }\n : t\n )\n }));\n\n this.notificationsComponent?.showNotification(\n 'Media pasted successfully.',\n 'success'\n );\n }\n\n /**\n * Find a valid position to paste media item.\n * First tries at the playhead position, then finds the next available gap.\n */\n private findPastePosition(\n preferredPosition: number,\n duration: number,\n existingItems: MediaItem[],\n totalDuration: number\n ): number | null {\n // Check if we can fit at the preferred position (playhead)\n if (this.canFitAtPosition(preferredPosition, duration, existingItems, totalDuration)) {\n return preferredPosition;\n }\n\n // Sort existing items by start time\n const sortedItems = [...existingItems].sort((a, b) => a.startTime - b.startTime);\n\n // Find all gaps on the track and try to place the item\n const gaps = this.dragDropService.findAllGaps(sortedItems);\n\n // First, try to find a gap that starts at or after the playhead\n for (const gap of gaps) {\n // Calculate actual gap size (considering totalDuration for infinite gaps)\n const effectiveGapEnd = gap.gapEnd === Infinity ? totalDuration : gap.gapEnd;\n const gapSize = effectiveGapEnd - gap.gapStart;\n\n if (gap.gapStart >= preferredPosition && gapSize >= duration) {\n return gap.gapStart;\n }\n }\n\n // If no gap after playhead, try any gap that can fit the item\n for (const gap of gaps) {\n // Calculate actual gap size (considering totalDuration for infinite gaps)\n const effectiveGapEnd = gap.gapEnd === Infinity ? totalDuration : gap.gapEnd;\n const gapSize = effectiveGapEnd - gap.gapStart;\n\n if (gapSize >= duration) {\n return gap.gapStart;\n }\n }\n\n // No suitable position found\n return null;\n }\n\n /**\n * Check if an item can fit at a specific position without overlapping.\n */\n private canFitAtPosition(\n position: number,\n duration: number,\n existingItems: MediaItem[],\n totalDuration: number\n ): boolean {\n // Check bounds\n if (position < 0 || position + duration > totalDuration) {\n return false;\n }\n\n // Check for overlaps with existing items\n const endPosition = position + duration;\n for (const item of existingItems) {\n const itemEnd = item.startTime + item.duration;\n // Check if there's an overlap\n if (position < itemEnd && endPosition > item.startTime) {\n return false;\n }\n }\n\n return true;\n }\n}\n", | |
| "structuredPatch": [ | |
| { | |
| "oldStart": 235, | |
| "oldLines": 11, | |
| "newStart": 235, | |
| "newLines": 16, | |
| "lines": [ | |
| " // getBoundingClientRect() already accounts for scroll, so we don't add scrollLeft", | |
| " const x = coords.clientX - rect.left;", | |
| " const newPosition = x / this.pixelsPerMillisecond();", | |
| "+ const currentState = this.state();", | |
| "+ const clampedPosition = Math.max(0, Math.min(newPosition, currentState.totalDuration));", | |
| " ", | |
| " this.state.update(s => ({", | |
| " ...s,", | |
| "- playheadPosition: Math.max(0, Math.min(newPosition, s.totalDuration))", | |
| "+ playheadPosition: clampedPosition", | |
| " }));", | |
| "+", | |
| "+ // Sync position to playback service for seeking", | |
| "+ this.playbackService.seek(currentState.tracks, clampedPosition);", | |
| " }", | |
| " ", | |
| " onPlayheadPointerDown(event: MouseEvent | TouchEvent): void {" | |
| ] | |
| } | |
| ], | |
| "userModified": false, | |
| "replaceAll": false | |
| } | |
| } | |
| [2025-12-05T10:39:25.427Z] [INFO] {"type":"assistant","message":{"model":"claude-opus-4-5-20251101","id":"msg_01NuacEfFEmW7cdtypijrkd5","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01UMrJ2Je3NCVUVcKtzmHSnc","name":"Edit","input":{"file_path":"/tmp/gh-issue-solver-1764930855025/video-timeline/src/app/components/timeline/timeline.component.ts","old_string":" onDocumentPointerMove(event: MouseEvent | TouchEvent): void {\n if (this.isDraggingPlayhead || this.isDraggingFromRuler) {\n // Fix for issue #50: Use ViewChild reference to ensure we use the exact same element as onRulerPointerDown\n if (!this.timelineRuler) {\n return;\n }\n\n const coords = this.getEventCoordinates(event);\n const rulerElement = this.timelineRuler.nativeElement;\n // Use the same calculation as onRulerPointerDown\n // getBoundingClientRect() already accounts for scroll, so we don't add scrollLeft\n const rect = rulerElement.getBoundingClientRect();\n const x = coords.clientX - rect.left;\n const newPosition = x / this.pixelsPerMillisecond();\n\n this.state.update(s => ({\n ...s,\n playheadPosition: Math.max(0, Math.min(newPosition, s.totalDuration))\n }));\n }","new_string":" onDocumentPointerMove(event: MouseEvent | TouchEvent): void {\n if (this.isDraggingPlayhead || this.isDraggingFromRuler) {\n // Fix for issue #50: Use ViewChild reference to ensure we use the exact same element as onRulerPointerDown\n if (!this.timelineRuler) {\n return;\n }\n\n const coords = this.getEventCoordinates(event);\n const rulerElement = this.timelineRuler.nativeElement;\n // Use the same calculation as onRulerPointerDown\n // getBoundingClientRect() already accounts for scroll, so we don't add scrollLeft\n const rect = rulerElement.getBoundingClientRect();\n const x = coords.clientX - rect.left;\n const newPosition = x / this.pixelsPerMillisecond();\n const cur | |
| [2025-12-05T10:39:25.604Z] [INFO] rentState = this.state();\n const clampedPosition = Math.max(0, Math.min(newPosition, currentState.totalDuration));\n\n this.state.update(s => ({\n ...s,\n playheadPosition: clampedPosition\n }));\n\n // Sync position to playback service for seeking (but don't call too frequently during drag)\n this.playbackService.seek(currentState.tracks, clampedPosition);\n }"}}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":1398,"cache_read_input_tokens":83117,"cache_creation":{"ephemeral_5m_input_tokens":1398,"ephemeral_1h_input_tokens":0},"output_tokens":701,"service_tier":"standard"},"context_management":null},"parent_tool_use_id":null,"session_id":"d5b1bf94-1397-44f7-9390-3c57ba19d0b0","uuid":"ddd97820-4dca-43f2-a019-3814c0cd26ac"} | |
| [2025-12-05T10:39:25.989Z] [INFO] { | |
| "type": "user", | |
| "message": { | |
| "role": "user", | |
| "content": [ | |
| { | |
| "tool_use_id": "toolu_01UMrJ2Je3NCVUVcKtzmHSnc", | |
| "type": "tool_result", | |
| "content": "The file /tmp/gh-issue-solver-1764930855025/video-timeline/src/app/components/timeline/timeline.component.ts has been updated. Here's the result of running `cat -n` on a snippet of the edited file:\n 546→ this.resizingItem = null;\n 547→ this.mouseDownPosition = null;\n 548→ }\n 549→\n 550→ onDocumentPointerMove(event: MouseEvent | TouchEvent): void {\n 551→ if (this.isDraggingPlayhead || this.isDraggingFromRuler) {\n 552→ // Fix for issue #50: Use ViewChild reference to ensure we use the exact same element as onRulerPointerDown\n 553→ if (!this.timelineRuler) {\n 554→ return;\n 555→ }\n 556→\n 557→ const coords = this.getEventCoordinates(event);\n 558→ const rulerElement = this.timelineRuler.nativeElement;\n 559→ // Use the same calculation as onRulerPointerDown\n 560→ // getBoundingClientRect() already accounts for scroll, so we don't add scrollLeft\n 561→ const rect = rulerElement.getBoundingClientRect();\n 562→ const x = coords.clientX - rect.left;\n 563→ const newPosition = x / this.pixelsPerMillisecond();\n 564→ const currentState = this.state();\n 565→ const clampedPosition = Math.max(0, Math.min(newPosition, currentState.totalDuration));\n 566→\n 567→ this.state.update(s => ({\n 568→ ...s,\n 569→ playheadPosition: clampedPosition\n 570→ }));\n 571→\n 572→ // Sync position to playback service for seeking (but don't call too frequently during drag)\n 573→ this.playbackService.seek(currentState.tracks, clampedPosition);\n 574→ }\n 575→\n 576→ // Fix for issue #96: Handle media item dragging and resizing at document level for touch events\n 577→ // This allows dragging between tracks on mobile devices\n 578→ if (event instanceof TouchEvent) {" | |
| } | |
| ] | |
| }, | |
| "parent_tool_use_id": null, | |
| "session_id": "d5b1bf94-1397-44f7-9390-3c57ba19d0b0", | |
| "uuid": "9d9ba0a8-03d6-4692-91f2-6a89e8dfce15", | |
| "tool_use_result": { | |
| "filePath": "/tmp/gh-issue-solver-1764930855025/video-timeline/src/app/components/timeline/timeline.component.ts", | |
| "oldString": " onDocumentPointerMove(event: MouseEvent | TouchEvent): void {\n if (this.isDraggingPlayhead || this.isDraggingFromRuler) {\n // Fix for issue #50: Use ViewChild reference to ensure we use the exact same element as onRulerPointerDown\n if (!this.timelineRuler) {\n return;\n }\n\n const coords = this.getEventCoordinates(event);\n const rulerElement = this.timelineRuler.nativeElement;\n // Use the same calculation as onRulerPointerDown\n // getBoundingClientRect() already accounts for scroll, so we don't add scrollLeft\n const rect = rulerElement.getBoundingClientRect();\n const x = coords.clientX - rect.left;\n const newPosition = x / this.pixelsPerMillisecond();\n\n this.state.update(s => ({\n ...s,\n playheadPosition: Math.max(0, Math.min(newPosition, s.totalDuration))\n }));\n }", | |
| "newString": " onDocumentPointerMove(event: MouseEvent | TouchEvent): void {\n if (this.isDraggingPlayhead || this.isDraggingFromRuler) {\n // Fix for issue #50: Use ViewChild reference to ensure we use the exact same element as onRulerPointerDown\n if (!this.timelineRuler) {\n return;\n }\n\n const coords = this.getEventCoordinates(event);\n const rulerElement = this.timelineRuler.nativeElement;\n // Use the same calculation as onRulerPointerDown\n // getBoundingClientRect() already accounts for scroll, so we don't add scrollLeft\n const rect = rulerElement.getBoundingClientRect();\n const x = coords.clientX - rect.left;\n const newPosition = x / this.pixelsPerMillisecond();\n const currentState = this.state();\n const clampedPosition = Math.max(0, Math.min(newPosition, currentState.totalDuration));\n\n this.state.update(s => ({\n ...s,\n playheadPosition: clampedPosition\n }));\n\n // Sync position to playback service for seeking (but don't call too frequently during drag)\n this.playbackService.seek(currentState.tracks, clampedPosition);\n }", | |
| "originalFile": "import { Component, signal, computed, ViewChild, ElementRef, AfterViewInit, OnDestroy, effect } from '@angular/core';\nimport { CommonModule } from '@angular/common';\nimport { MediaType, MediaItem, Track, TimelineState } from '../../models/timeline.models';\nimport { MediaLibraryComponent, MediaLibraryItem } from '../media-library/media-library.component';\nimport { Media***********onent } from '../media-toolbar/media-toolbar.component';\nimport { Notif************onent } from '../notifications/notifications.component';\nimport { Timel*************rvice } from '../../services/timeline-drag-drop.service';\nimport { PlaybackService } from '../../services/playback.service';\n\n@Component({\n selector: 'app-timeline',\n standalone: true,\n imports: [CommonModule, MediaLibraryComponent, MediaToolbarComponent, NotificationsComponent],\n templateUrl: './timeline.component.html',\n styleUrl: './timeline.component.css'\n})\nexport class TimelineComponent implements AfterViewInit, OnDestroy {\n // Zoom levels: pixels per second\n private readonly MIN_ZOOM = 10;\n private readonly MAX_ZOOM = 200;\n private readonly ZOOM_STEP = 20;\n readonly TRACK_HEADER_WIDTH = 150; // Width of track header in pixels\n private readonly SNAP_PROXIMITY_MS = 500; // Snap to item if playhead is within 500ms\n private readonly MIN_ITEM_DURATION = 100; // Minimum item duration in milliseconds\n\n // Canvas dimensions for preview\n readonly PREVIEW_WIDTH = 640;\n readonly PREVIEW_HEIGHT = 360;\n\n // View references\n @ViewChild('timelineRuler') timelineRuler?: ElementRef<HTMLElement>;\n @ViewChild('notifications') notificationsComponent?: NotificationsComponent;\n @ViewChild('previewCanvas') previewCanvas?: ElementRef<HTMLCanvasElement>;\n\n // Timeline state\n readonly state = signal<TimelineState>({\n tracks: [\n { id: '1', name: 'Track 1', order: 0, items: [] },\n { id: '2', name: 'Track 2', order: 1, items: [] }\n ],\n playheadPosition: 0,\n zoomLevel: 50, // pixels per second\n totalDuration: 120000, // 120 seconds in milliseconds\n selectedItemId: null\n });\n\n // Computed values\n readonly pixel**********econd = computed(() => {\n return this.state().zoomLevel / 1000;\n });\n\n readonly timelineWidth = computed(() => {\n const state = this.state();\n // Calculate the maximum end time across all tracks\n let maxEndTime = state.totalDuration;\n\n for (const track of state.tracks) {\n for (const item of track.items) {\n const itemEndTime = item.startTime + item.duration;\n if (itemEndTime > maxEndTime) {\n maxEndTime = itemEndTime;\n }\n }\n }\n\n return maxEndTime * this.pixelsPerMillisecond();\n });\n\n readonly timelineLineHeight = computed(() => {\n const state = this.state();\n return state.tracks.length * 60 + 32;\n });\n\n readonly playheadPosition = computed(() => {\n return this.state().playheadPosition * this.pixelsPerMillisecond();\n });\n\n readonly playh************ition = computed(() => {\n return this.playheadPosition() + this.TRACK_HEADER_WIDTH;\n });\n\n // Computed: whether a media item is currently selected\n readonly hasSelectedItem = computed(() => {\n return this.state().selectedItemId !== null;\n });\n\n // Dragging state\n private draggedItem: MediaItem | null = null;\n private draggedItemOriginalTrackId: string | null = null;\n private dragOffsetTime: number = 0; // Offset in milliseconds from item start to cursor position\n private isDraggingPlayhead = false;\n private isDraggingFromRuler = false;\n private resizingItem: { item: MediaItem; edge: 'left' | 'right' } | null = null;\n private mouseDownPosition: { x: number; y: number } | null = null; // Track mouse down position for click detection\n\n // Video preview state\n readonly isPlaying = signal<boolean>(false);\n\n // Duration editor state\n readonly showDurationEditor = signal<boolean>(false);\n private editedDuration: number = 120; // Duration in seconds\n\n // Media library state\n readonly showMediaLibrary = signal<boolean>(false);\n private mediaLibraryTargetTrackId: string | null = null;\n\n // Clipboard state for copy/paste functionality\n private readonly clipboardItem = signal<MediaItem | null>(null);\n private readonly clipb************ackId = signal<string | null>(null);\n\n // Computed: whether a media item is in clipboard\n readonly hasClipboardItem = computed(() => {\n return this.clipboardItem() !== null;\n });\n\n // Render loop ID for cleanup\n private renderLoopId: number | null = null;\n\n constructor(\n private dragDropService: TimelineDragDropService,\n public playbackService: PlaybackService\n ) {\n // Effect to sync playhead position from PlaybackService during playback\n effect(() => {\n if (this.playbackService.isPlaying()) {\n const position = this.playbackService.playheadPosition();\n this.state.update(s => ({\n ...s,\n playheadPosition: position\n }));\n }\n });\n }\n\n ngAfterViewInit(): void {\n // Initialize canvas for preview rendering\n if (this.previewCanvas) {\n this.playbackService.setCanvas(this.previewCanvas.nativeElement);\n }\n\n // Start continuous render loop for preview (renders current frame even when paused)\n this.startRenderLoop();\n }\n\n ngOnDestroy(): void {\n // Clean up render loop\n if (this.renderLoopId !== null) {\n cancelAnimationFrame(this.renderLoopId);\n this.renderLoopId = null;\n }\n\n // Stop playback\n this.playbackService.stop();\n }\n\n /**\n * Continuous render loop for preview canvas.\n * Keeps rendering even when paused so seeking updates the preview.\n */\n private startRenderLoop(): void {\n const render = () => {\n // Only render if we have active media and are not playing\n // (PlaybackService handles rendering during playback)\n if (!this.playbackService.isPlaying()) {\n this.playbackService.renderCurrentFrame();\n }\n this.renderLoopId = requestAnimationFrame(render);\n };\n this.renderLoopId = requestAnimationFrame(render);\n }\n\n // Track management\n addTrack(): void {\n const currentState = this.state();\n const newTrack: Track = {\n id: `track-${Date.now()}`,\n name: `Track ${currentState.tracks.length + 1}`,\n order: currentState.tracks.length,\n items: []\n };\n\n this.state.update(s => ({\n ...s,\n tracks: [...s.tracks, newTrack]\n }));\n }\n\n removeTrack(trackId: string): void {\n const currentState = this.state();\n if (currentState.tracks.length <= 1) {\n return; // Keep at least one track\n }\n\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.filter(t => t.id !== trackId)\n }));\n }\n\n // Zoom controls\n zoomIn(): void {\n this.state.update(s => ({\n ...s,\n zoomLevel: Math.min(s.zoomLevel + this.ZOOM_STEP, this.MAX_ZOOM)\n }));\n }\n\n zoomOut(): void {\n this.state.update(s => ({\n ...s,\n zoomLevel: Math.max(s.zoomLevel - this.ZOOM_STEP, this.MIN_ZOOM)\n }));\n }\n\n // Utility method to extract coordinates from mouse or touch events\n private getEventCoordinates(event: MouseEvent | TouchEvent): { clientX: number; clientY: number } {\n if (event instanceof MouseEvent) {\n return { clientX: event.clientX, clientY: event.clientY };\n } else {\n const touch = event.touches[0] || event.changedTouches[0];\n return { clientX: touch.clientX, clientY: touch.clientY };\n }\n }\n\n // Playhead controls\n onRulerPointerDown(event: MouseEvent | TouchEvent): void {\n event.preventDefault();\n this.isDraggingFromRuler = true;\n\n // Immediately update position on pointer down\n const target = event.currentTarget as HTMLElement;\n const rect = target.getBoundingClientRect();\n const coords = this.getEventCoordinates(event);\n // Calculate position within the ruler element\n // getBoundingClientRect() already accounts for scroll, so we don't add scrollLeft\n const x = coords.clientX - rect.left;\n const newPosition = x / this.pixelsPerMillisecond();\n const currentState = this.state();\n const clampedPosition = Math.max(0, Math.min(newPosition, currentState.totalDuration));\n\n this.state.update(s => ({\n ...s,\n playheadPosition: clampedPosition\n }));\n\n // Sync position to playback service for seeking\n this.playbackService.seek(currentState.tracks, clampedPosition);\n }\n\n onPlayheadPointerDown(event: MouseEvent | TouchEvent): void {\n event.preventDefault();\n event.stopPropagation();\n this.isDraggingPlayhead = true;\n }\n\n\n // Media item drag and drop\n onMediaItemPointerDown(event: MouseEvent | TouchEvent, item: MediaItem, track: Track): void {\n const target = event.target as HTMLElement;\n\n // Check if clicking/touching on resize handle\n if (target.classList.contains('resize-handle')) {\n this.resizingItem = {\n item,\n edge: target.classList.contains('resize-handle-left') ? 'left' : 'right'\n };\n event.preventDefault();\n return;\n }\n\n const coords = this.getEventCoordinates(event);\n this.mouseDownPosition = { x: coords.clientX, y: coords.clientY };\n\n const mediaItemElement = event.currentTarget as HTMLElement;\n const rect = mediaItemElement.getBoundingClientRect();\n const clickX = coords.clientX - rect.left;\n\n // Convert pixel offset to time offset\n this.dragOffsetTime = clickX / this.pixelsPerMillisecond();\n\n this.draggedItem = item;\n this.draggedItemOriginalTrackId = track.id;\n event.preventDefault();\n }\n\n onTrackPointerDown(event: MouseEvent | TouchEvent): void {\n // Deselect when clicking/touching track background (not on media item)\n const target = event.target as HTMLElement;\n if (target.classList.contains('track')) {\n this.deselectMediaItem();\n }\n }\n\n onTrackPointerMove(event: MouseEvent | TouchEvent, track: Track): void {\n if (this.resizingItem) {\n this.handleResize(event, track);\n return;\n }\n event.preventDefault();\n event.stopPropagation();\n\n if (!this.draggedItem) return;\n\n const coords = this.getEventCoordinates(event);\n const target = event.currentTarget as HTMLElement;\n const rect = target.getBoundingClientRect();\n const x = coords.clientX - rect.left;\n const requestedStartTime = Math.max(0, x / this.pixelsPerMillisecond() - this.dragOffsetTime);\n\n this.state.update(s => {\n const updatedTracks = s.tracks.map(t => {\n if (t.id === track.id) {\n // Get all items except the dragged one for collision detection\n const otherItems = t.items.filter(i => i.id !== this.draggedItem!.id);\n\n // Fix for issue #81: Find snap targets (playhead and items on all tracks)\n const snapTargets = this.dragDropService.findSnapTargets(\n this.draggedItem!.id,\n s.tracks,\n s.playheadPosition\n );\n\n // Calculate valid position and duration considering collisions, gap fitting, and snapping\n const validPosition = this.dragDropService.getValidDragPosition(\n this.draggedItem!,\n requestedStartTime,\n otherItems,\n s.totalDuration,\n snapTargets\n );\n\n // Check if item already exists in this track\n const itemExists = t.items.some(i => i.id === this.draggedItem!.id);\n\n if (itemExists) {\n // Update position and duration in current track\n return {\n ...t,\n items: t.items.map(i =>\n i.id === this.draggedItem!.id\n ? {\n ...i,\n startTime: validPosition.startTime,\n duration: validPosition.duration,\n trackId: track.id\n }\n : i\n )\n };\n } else {\n // Add to new track with adjusted position and duration\n return {\n ...t,\n items: [\n ...otherItems,\n {\n ...this.draggedItem!,\n startTime: validPosition.startTime,\n duration: validPosition.duration,\n trackId: track.id\n }\n ]\n };\n }\n } else if (t.id === this.draggedItemOriginalTrackId && t.id !== track.id) {\n // Remove from original track only if moving to different track\n return {\n ...t,\n items: t.items.filter(i => i.id !== this.draggedItem!.id)\n };\n }\n return t;\n });\n\n // Update the original track ID to current track for smooth dragging within same track\n this.draggedItemOriginalTrackId = track.id;\n\n return { ...s, tracks: updatedTracks };\n });\n }\n\n private handleResize(event: MouseEvent | TouchEvent, track: Track): void {\n if (!this.resizingItem) return;\n\n const coords = this.getEventCoordinates(event);\n const target = event.currentTarget as HTMLElement;\n const rect = target.getBoundingClientRect();\n // Fix for issue #83: getBoundingClientRect() returns viewport-relative coordinates,\n // and coords.clientX is also viewport-relative, so we don't need to add scrollLeft\n const x = coords.clientX - rect.left;\n const timeAtCursor = x / this.pixelsPerMillisecond();\n\n this.state.update(s => {\n // Fix for issue #87: Find snap targets for resize operations\n const snapTargets = this.dragDropService.findSnapTargets(\n this.resizingItem!.item.id,\n s.tracks,\n s.playheadPosition\n );\n\n const updatedTracks = s.tracks.map(t => {\n if (t.id === track.id) {\n // Get resize bounds considering adjacent items\n const bounds = this.dragDropService.getResizeBounds(\n this.resizingItem!.item,\n t.items,\n this.resizingItem!.edge,\n s.totalDuration\n );\n\n return {\n ...t,\n items: t.items.map(i => {\n if (i.id === this.resizingItem!.item.id) {\n if (this.resizingItem!.edge === 'left') {\n // Fix for issue #89: Handle mediaStartTime when resizing from left\n // Apply snapping to left edge (start time)\n let newStartTime = Math.max(\n bounds.minTime,\n Math.min(timeAtCursor, bounds.maxTime)\n );\n\n // Apply snapping if within snap distance\n let minDistance = this.dragDropService.SNAP_DISTANCE_MS;\n for (const target of snapTargets) {\n const distance = Math.abs(newStartTime - target);\n if (distance < minDistance) {\n minDistance = distance;\n // Only snap if within bounds\n if (target >= bounds.minTime && target <= bounds.maxTime) {\n newStartTime = target;\n }\n }\n }\n\n // Calculate how much the timeline position is changing\n const deltaTime = newStartTime - i.startTime;\n const newDuration = i.duration - deltaTime;\n\n // Update media start time (trimming from source media)\n const curre***********tTime = i.mediaStartTime || 0;\n const newMediaStartTime = curre***********tTime + deltaTime;\n\n // Check if we're trying to extend beyond the start of source media\n if (newMediaStartTime < 0) {\n // Can only extend left by curre***********tTime amount\n const maxExtension = currentMediaStartTime;\n const finalStartTime = i.startTime - maxExtension;\n const finalDuration = i.duration + maxExtension;\n\n // Ensure we don't exceed maxDuration\n if (i.maxDuration && finalDuration > i.maxDuration) {\n return {\n ...i,\n startTime: finalStartTime + (finalDuration - i.maxDuration),\n duration: i.maxDuration,\n mediaStartTime: 0\n };\n }\n\n return {\n ...i,\n startTime: finalStartTime,\n duration: finalDuration,\n mediaStartTime: 0\n };\n }\n\n // Ensure media end doesn't exceed maxDuration\n if (i.maxDuration && newMediaStartTime + newDuration > i.maxDuration) {\n const maxAllowedDuration = i.maxDuration - newMediaStartTime;\n return {\n ...i,\n startTime: i.startTime + (i.duration - maxAllowedDuration),\n duration: maxAllowedDuration,\n mediaStartTime: newMediaStartTime\n };\n }\n\n return {\n ...i,\n startTime: newStartTime,\n duration: newDuration,\n mediaStartTime: newMediaStartTime\n };\n } else {\n // Fix for issue #87: Apply snapping to right edge (end time)\n let newEndTime = Math.max(\n bounds.minTime,\n Math.min(timeAtCursor, bounds.maxTime)\n );\n\n // Apply snapping if within snap distance\n let minDistance = this.dragDropService.SNAP_DISTANCE_MS;\n for (const target of snapTargets) {\n const distance = Math.abs(newEndTime - target);\n if (distance < minDistance) {\n minDistance = distance;\n // Only snap if within bounds\n if (target >= bounds.minTime && target <= bounds.maxTime) {\n newEndTime = target;\n }\n }\n }\n\n const newDuration = newEndTime - i.startTime;\n\n // Limit duration by maxDuration if specified\n const limitedDuration = i.maxDuration\n ? Math.min(newDuration, i.maxDuration)\n : newDuration;\n\n return { ...i, duration: limitedDuration };\n }\n }\n return i;\n })\n };\n }\n return t;\n });\n\n return { ...s, tracks: updatedTracks };\n });\n }\n\n onPointerUp(event: MouseEvent | TouchEvent): void {\n // Detect if this was a click/tap (not a drag) on a media item\n if (this.draggedItem && this.mouseDownPosition) {\n const coords = this.getEventCoordinates(event);\n const dx = coords.clientX - this.mouseDownPosition.x;\n const dy = coords.clientY - this.mouseDownPosition.y;\n const distance = Math.sqrt(dx * dx + dy * dy);\n\n // If pointer moved less than 5 pixels, consider it a click/tap\n if (distance < 5) {\n this.selectMediaItem(this.draggedItem.id);\n }\n }\n\n this.draggedItem = null;\n this.draggedItemOriginalTrackId = null;\n this.dragOffsetTime = 0;\n this.isDraggingPlayhead = false;\n this.isDraggingFromRuler = false;\n this.resizingItem = null;\n this.mouseDownPosition = null;\n }\n\n onDocumentPointerMove(event: MouseEvent | TouchEvent): void {\n if (this.isDraggingPlayhead || this.isDraggingFromRuler) {\n // Fix for issue #50: Use ViewChild reference to ensure we use the exact same element as onRulerPointerDown\n if (!this.timelineRuler) {\n return;\n }\n\n const coords = this.getEventCoordinates(event);\n const rulerElement = this.timelineRuler.nativeElement;\n // Use the same calculation as onRulerPointerDown\n // getBoundingClientRect() already accounts for scroll, so we don't add scrollLeft\n const rect = rulerElement.getBoundingClientRect();\n const x = coords.clientX - rect.left;\n const newPosition = x / this.pixelsPerMillisecond();\n\n this.state.update(s => ({\n ...s,\n playheadPosition: Math.max(0, Math.min(newPosition, s.totalDuration))\n }));\n }\n\n // Fix for issue #96: Handle media item dragging and resizing at document level for touch events\n // This allows dragging between tracks on mobile devices\n if (event instanceof TouchEvent) {\n if (this.draggedItem) {\n // Find which track the touch is currently over\n const targetTrack = this.findTrackAtCoordinates(this.getEventCoordinates(event));\n if (targetTrack) {\n // Reuse existing drag logic\n this.onTrackPointerMove(event, targetTrack);\n }\n } else if (this.resizingItem) {\n // Find the track that contains the resizing item\n const targetTrack = this.findTrackContainingItem(this.resizingItem.item.id);\n if (targetTrack) {\n // Reuse existing resize logic\n this.handleResize(event, targetTrack);\n }\n }\n }\n }\n\n // Helper method to find which track is at the given Y coordinate\n private findTrackAtCoordinates(coords: { clientX: number; clientY: number }): Track | null {\n const trackElements = document.querySelectorAll('.track');\n for (const trackElement of Array.from(trackElements)) {\n const rect = trackElement.getBoundingClientRect();\n if (coords.clientY >= rect.top && coords.clientY <= rect.bottom) {\n const trackIndex = Array.from(trackElements).indexOf(trackElement);\n const tracks = this.state().tracks;\n if (trackIndex >= 0 && trackIndex < tracks.length) {\n return tracks[trackIndex];\n }\n }\n }\n return null;\n }\n\n // Helper method to find the track containing a specific item\n private findTrackContainingItem(itemId: string): Track | null {\n const currentState = this.state();\n for (const track of currentState.tracks) {\n if (track.items.some(item => item.id === itemId)) {\n return track;\n }\n }\n return null;\n }\n\n // Helper methods\n getItemStyle(item: MediaItem) {\n return {\n left: `${item.startTime * this.pixelsPerMillisecond()}px`,\n width: `${item.duration * this.pixelsPerMillisecond()}px`\n };\n }\n\n getMediaTypeClass(type: MediaType): string {\n return `media-${type}`;\n }\n\n formatTime(milliseconds: number): string {\n const seconds = Math.floor(milliseconds / 1000);\n const minutes = Math.floor(seconds / 60);\n const remainingSeconds = seconds % 60;\n const cs = Math.floor((milliseconds % 1000) / 10);\n return `${minutes}:${remainingSeconds.toString().padStart(2, '0')}.${cs.toString().padStart(2, '0')}`;\n }\n\n /**\n * Calculate appropriate time interval for markers based on zoom level\n * to prevent marker labels from overlapping\n */\n private getMarkerInterval(): number {\n // Minimum spacing between markers in pixels to prevent overlap\n // Enough space for \"0:00.000\" text (about 50-60px)\n const MIN_M***********NG_PX = 60;\n\n // Calculate how much time represents MIN_M***********NG_PX at current zoom\n const pixelsPerMs = this.pixelsPerMillisecond();\n const minTimeSpacing = MIN_M***********NG_PX / pixelsPerMs;\n\n // Define possible intervals (in ms): 100ms, 250ms, 500ms, 1s, 2s, 5s, 10s, 30s, 60s\n const intervals = [100, 250, 500, 1000, 2000, 5000, 10000, 30000, 60000];\n\n // Find the smallest interval that's larger than or equal to minTimeSpacing\n for (const interval of intervals) {\n if (interval >= minTimeSpacing) {\n return interval;\n }\n }\n\n // If even 60s is too small, use larger intervals\n return Math.ceil(minTimeSpacing / 60000) * 60000;\n }\n\n getTimeMarkers(): { position: number; label: string }[] {\n const markers: { position: number; label: string }[] = [];\n const stepMs = this.getMarkerInterval(); // Dynamic interval based on zoom level\n\n // Fix for issue #85: Do not show the last time mark at totalDuration\n // to prevent container expansion from the text label\n for (let time = 0; time < this.state().totalDuration; time += stepMs) {\n markers.push({\n position: time * this.pixelsPerMillisecond(),\n label: this.formatTime(time)\n });\n }\n\n return markers;\n }\n\n // Add placeholder media item\n addMediaItem(type: MediaType, trackId: string): void {\n const currentState = this.state();\n const track = currentState.tracks.find(t => t.id === trackId);\n\n if (!track) return;\n\n const playheadTime = currentState.playheadPosition;\n const totalDuration = currentState.totalDuration;\n const newItemDuration = type === MediaType.IMAGE ? 5000 : 3000;\n\n // Determine the start time for the new item using the service\n const startTime = this.dragDropService.calculateNewItemStartTime(\n playheadTime,\n track.items,\n this.SNAP_PROXIMITY_MS\n );\n\n // Fix for issue #48: Ensure new item doesn't exceed totalDuration\n const maxAllowedDuration = totalDuration - startTime;\n const finalDuration = Math.min(newItemDuration, maxAllowedDuration);\n\n // Fix for issue #64: Verify that the new item doesn't overlap with any existing items\n const testItem: MediaItem = {\n id: 'temp',\n type,\n startTime,\n duration: finalDuration,\n trackId,\n name: '',\n isPlaceholder: true\n };\n\n // Validate and adjust position if needed\n const validatedStartTime = this.dragDropService.validateItemPosition(testItem, track.items);\n\n // Recalculate duration limit if position was adjusted\n const adjus****************ation = totalDuration - validatedStartTime;\n const adjustedDuration = Math.min(newItemDuration, adjustedMaxAllowedDuration);\n\n // Create the final non-overlapping item\n const newItem: MediaItem = {\n id: `item-${Date.now()}`,\n type,\n startTime: validatedStartTime,\n duration: adjustedDuration,\n trackId,\n name: `${type} placeholder`,\n isPlaceholder: true\n };\n\n // Set maxDuration for audio and video placeholders\n if (type === MediaType.VIDEO) {\n newItem.maxDuration = Math.min(10000, adjustedMaxAllowedDuration); // 10 seconds default for video\n } else if (type === MediaType.AUDIO) {\n newItem.maxDuration = Math.min(15000, adjustedMaxAllowedDuration); // 15 seconds default for audio\n }\n\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t =>\n t.id === trackId\n ? { ...t, items: [...t.items, newItem] }\n : t\n )\n }));\n }\n\n removeMediaItem(itemId: string, trackId: string): void {\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t =>\n t.id === trackId\n ? { ...t, items: t.items.filter(i => i.id !== itemId) }\n : t\n ),\n // Deselect if removing selected item\n selectedItemId: s.selectedItemId === itemId ? null : s.selectedItemId\n }));\n }\n\n // Media selection\n selectMediaItem(itemId: string): void {\n this.state.update(s => ({\n ...s,\n selectedItemId: itemId\n }));\n }\n\n deselectMediaItem(): void {\n this.state.update(s => ({\n ...s,\n selectedItemId: null\n }));\n }\n\n isItemSelected(itemId: string): boolean {\n return this.state().selectedItemId === itemId;\n }\n\n readonly MediaType = MediaType;\n\n // Video preview controls\n togglePlayback(): void {\n const currentState = this.state();\n\n if (this.playbackService.isPlaying()) {\n this.playbackService.pause();\n this.isPlaying.set(false);\n } else {\n // Sync playhead position to PlaybackService before starting\n this.playbackService.setPlayheadPosition(currentState.playheadPosition);\n this.playbackService.play(currentState.tracks, currentState.totalDuration);\n this.isPlaying.set(true);\n }\n }\n\n skipBackward(): void {\n const currentState = this.state();\n const newPosition = Math.max(0, currentState.playheadPosition - 5000);\n\n this.state.update(s => ({\n ...s,\n playheadPosition: newPosition\n }));\n\n // Sync position and update media\n this.playbackService.seek(currentState.tracks, newPosition);\n }\n\n skipForward(): void {\n const currentState = this.state();\n const newPosition = Math.min(currentState.totalDuration, currentState.playheadPosition + 5000);\n\n this.state.update(s => ({\n ...s,\n playheadPosition: newPosition\n }));\n\n // Sync position and update media\n this.playbackService.seek(currentState.tracks, newPosition);\n }\n\n // Duration editor methods\n openDurationEditor(): void {\n this.editedDuration = this.state().totalDuration / 1000;\n this.showDurationEditor.set(true);\n }\n\n closeDurationEditor(): void {\n this.showDurationEditor.set(false);\n }\n\n onDurationInputChange(event: Event): void {\n const input = event.target as HTMLInputElement;\n const value = parseFloat(input.value);\n if (!isNaN(value) && value > 0) {\n this.editedDuration = value;\n }\n }\n\n saveDuration(): void {\n const newDurationMs = Math.max(1000, this.editedDuration * 1000); // At least 1 second\n this.state.update(s => ({\n ...s,\n totalDuration: newDurationMs,\n // Ensure playhead doesn't exceed new duration\n playheadPosition: Math.min(s.playheadPosition, newDurationMs)\n }));\n this.closeDurationEditor();\n }\n\n // Media library methods\n openMediaLibrary(trackId: string): void {\n this.mediaLibraryTargetTrackId = trackId;\n this.showMediaLibrary.set(true);\n }\n\n closeMediaLibrary(): void {\n this.showMediaLibrary.set(false);\n this.mediaLibraryTargetTrackId = null;\n }\n\n onMediaSelected(media: MediaLibraryItem): void {\n if (!this.mediaLibraryTargetTrackId) return;\n\n const currentState = this.state();\n const track = currentState.tracks.find(t => t.id === this.mediaLibraryTargetTrackId);\n\n if (!track) return;\n\n const playheadTime = currentState.playheadPosition;\n const totalDuration = currentState.totalDuration;\n\n // Determine the start time for the new item using the service\n const startTime = this.dragDropService.calculateNewItemStartTime(\n playheadTime,\n track.items,\n this.SNAP_PROXIMITY_MS\n );\n\n // Ensure item doesn't exceed totalDuration\n const maxAllowedDuration = totalDuration - startTime;\n const finalDuration = Math.min(media.duration, maxAllowedDuration);\n\n // Verify that the new item doesn't overlap with any existing items\n const testItem: MediaItem = {\n id: 'temp',\n type: media.type,\n startTime,\n duration: finalDuration,\n trackId: this.mediaLibraryTargetTrackId,\n name: '',\n isPlaceholder: false\n };\n\n // Validate and adjust position if needed\n const validatedStartTime = this.dragDropService.validateItemPosition(testItem, track.items);\n\n // Recalculate duration limit if position was adjusted\n const adjus****************ation = totalDuration - validatedStartTime;\n const adjustedDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n\n // Create the final non-overlapping item\n const newItem: MediaItem = {\n id: `item-${Date.now()}`,\n type: media.type,\n startTime: validatedStartTime,\n duration: adjustedDuration,\n trackId: this.mediaLibraryTargetTrackId,\n name: media.name,\n isPlaceholder: false\n };\n\n // Set maxDuration for audio and video\n if (media.type === MediaType.VIDEO) {\n newItem.maxDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n } else if (media.type === MediaType.AUDIO) {\n newItem.maxDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n }\n\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t =>\n t.id === this.mediaLibraryTargetTrackId\n ? { ...t, items: [...t.items, newItem] }\n : t\n )\n }));\n\n // Close the media library after selection\n this.closeMediaLibrary();\n }\n\n /**\n * Trim (split) the selected media item at the playhead position.\n * Creates two separate items from the original media.\n */\n trimSelectedMedia(): void {\n const currentState = this.state();\n const selectedItemId = currentState.selectedItemId;\n\n if (!selectedItemId) {\n return;\n }\n\n // Find the selected item and its track\n let selectedItem: MediaItem | null = null;\n let selectedTrack: Track | null = null;\n\n for (const track of currentState.tracks) {\n const item = track.items.find(i => i.id === selectedItemId);\n if (item) {\n selectedItem = item;\n selectedTrack = track;\n break;\n }\n }\n\n if (!selectedItem || !selectedTrack) {\n return;\n }\n\n const playheadTime = currentState.playheadPosition;\n const itemStart = selectedItem.startTime;\n const itemEnd = itemStart + selectedItem.duration;\n\n // Check if playhead is within the selected media item\n if (playheadTime <= itemStart || playheadTime >= itemEnd) {\n // Playhead is not within the selected media - show notification\n this.notificationsComponent?.showNotification(\n 'Position the playhead within the selected media to trim it.',\n 'warning'\n );\n return;\n }\n\n // Ensure both parts will have at least MIN_ITEM_DURATION\n const firstPartDuration = playheadTime - itemStart;\n const secondPartDuration = itemEnd - playheadTime;\n\n if (firstPartDuration < this.MIN_ITEM_DURATION || secondPartDuration < this.MIN_ITEM_DURATION) {\n this.notificationsComponent?.showNotification(\n 'Cannot trim: resulting parts would be too short.',\n 'warning'\n );\n return;\n }\n\n // Calculate mediaStartTime adjustments\n const origi************tTime = selectedItem.mediaStartTime || 0;\n const secon**************tTime = origi************tTime + firstPartDuration;\n\n // Create two new items from the original\n const firstPart: MediaItem = {\n ...selectedItem,\n id: `item-${Date.now()}-1`,\n duration: firstPartDuration\n // mediaStartTime stays the same for first part\n };\n\n const secondPart: MediaItem = {\n ...selectedItem,\n id: `item-${Date.now()}-2`,\n startTime: playheadTime,\n duration: secondPartDuration,\n mediaStartTime: secondPartMediaStartTime\n };\n\n // Update the state: remove original, add two new parts\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t => {\n if (t.id === selectedTrack!.id) {\n return {\n ...t,\n items: [\n ...t.items.filter(i => i.id !== selectedItemId),\n firstPart,\n secondPart\n ]\n };\n }\n return t;\n }),\n // Deselect after trimming\n selectedItemId: null\n }));\n\n this.notificationsComponent?.showNotification(\n 'Media trimmed successfully.',\n 'success'\n );\n }\n\n /**\n * Copy the selected media item to the clipboard.\n * Stores a copy of the item and the track it was copied from.\n */\n copySelectedMedia(): void {\n const currentState = this.state();\n const selectedItemId = currentState.selectedItemId;\n\n if (!selectedItemId) {\n return;\n }\n\n // Find the selected item and its track\n let selectedItem: MediaItem | null = null;\n let selectedTrackId: string | null = null;\n\n for (const track of currentState.tracks) {\n const item = track.items.find(i => i.id === selectedItemId);\n if (item) {\n selectedItem = item;\n selectedTrackId = track.id;\n break;\n }\n }\n\n if (!selectedItem || !selectedTrackId) {\n return;\n }\n\n // Store a copy of the item in clipboard\n this.clipboardItem.set({ ...selectedItem });\n this.clipboardSourceTrackId.set(selectedTrackId);\n\n this.notificationsComponent?.showNotification(\n 'Media copied to clipboard.',\n 'success'\n );\n }\n\n /**\n * Paste the clipboard media item at the playhead position.\n * Pastes on the same track where the item was copied from.\n * If there's no space at playhead position, finds the next available slot.\n */\n pasteMedia(): void {\n const copiedItem = this.clipboardItem();\n const sourceTrackId = this.clipboardSourceTrackId();\n\n if (!copiedItem || !sourceTrackId) {\n return;\n }\n\n const currentState = this.state();\n const playheadTime = currentState.playheadPosition;\n const totalDuration = currentState.totalDuration;\n\n // Find the source track\n let targetTrack = currentState.tracks.find(t => t.id === sourceTrackId);\n\n // If source track no longer exists, use the first track\n if (!targetTrack) {\n targetTrack = currentState.tracks[0];\n if (!targetTrack) {\n this.notificationsComponent?.showNotification(\n 'No tracks available to paste media.',\n 'error'\n );\n return;\n }\n }\n\n const itemDuration = copiedItem.duration;\n\n // Try to find a valid position starting from playhead\n const pastePosition = this.findPastePosition(\n playheadTime,\n itemDuration,\n targetTrack.items,\n totalDuration\n );\n\n if (pastePosition === null) {\n this.notificationsComponent?.showNotification(\n 'No space available to paste media on this track.',\n 'warning'\n );\n return;\n }\n\n // Create a new item with a new ID\n const newItem: MediaItem = {\n ...copiedItem,\n id: `item-${Date.now()}`,\n startTime: pastePosition,\n trackId: targetTrack.id\n };\n\n // Add the new item to the track\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t =>\n t.id === targetTrack!.id\n ? { ...t, items: [...t.items, newItem] }\n : t\n )\n }));\n\n this.notificationsComponent?.showNotification(\n 'Media pasted successfully.',\n 'success'\n );\n }\n\n /**\n * Find a valid position to paste media item.\n * First tries at the playhead position, then finds the next available gap.\n */\n private findPastePosition(\n preferredPosition: number,\n duration: number,\n existingItems: MediaItem[],\n totalDuration: number\n ): number | null {\n // Check if we can fit at the preferred position (playhead)\n if (this.canFitAtPosition(preferredPosition, duration, existingItems, totalDuration)) {\n return preferredPosition;\n }\n\n // Sort existing items by start time\n const sortedItems = [...existingItems].sort((a, b) => a.startTime - b.startTime);\n\n // Find all gaps on the track and try to place the item\n const gaps = this.dragDropService.findAllGaps(sortedItems);\n\n // First, try to find a gap that starts at or after the playhead\n for (const gap of gaps) {\n // Calculate actual gap size (considering totalDuration for infinite gaps)\n const effectiveGapEnd = gap.gapEnd === Infinity ? totalDuration : gap.gapEnd;\n const gapSize = effectiveGapEnd - gap.gapStart;\n\n if (gap.gapStart >= preferredPosition && gapSize >= duration) {\n return gap.gapStart;\n }\n }\n\n // If no gap after playhead, try any gap that can fit the item\n for (const gap of gaps) {\n // Calculate actual gap size (considering totalDuration for infinite gaps)\n const effectiveGapEnd = gap.gapEnd === Infinity ? totalDuration : gap.gapEnd;\n const gapSize = effectiveGapEnd - gap.gapStart;\n\n if (gapSize >= duration) {\n return gap.gapStart;\n }\n }\n\n // No suitable position found\n return null;\n }\n\n /**\n * Check if an item can fit at a specific position without overlapping.\n */\n private canFitAtPosition(\n position: number,\n duration: number,\n existingItems: MediaItem[],\n totalDuration: number\n ): boolean {\n // Check bounds\n if (position < 0 || position + duration > totalDuration) {\n return false;\n }\n\n // Check for overlaps with existing items\n const endPosition = position + duration;\n for (const item of existingItems) {\n const itemEnd = item.startTime + item.duration;\n // Check if there's an overlap\n if (position < itemEnd && endPosition > item.startTime) {\n return false;\n }\n }\n\n return true;\n }\n}\n", | |
| "structuredPatch": [ | |
| { | |
| "oldStart": 561, | |
| "oldLines": 11, | |
| "newStart": 561, | |
| "newLines": 16, | |
| "lines": [ | |
| " const rect = rulerElement.getBoundingClientRect();", | |
| " const x = coords.clientX - rect.left;", | |
| " const newPosition = x / this.pixelsPerMillisecond();", | |
| "+ const currentState = this.state();", | |
| "+ const clampedPosition = Math.max(0, Math.min(newPosition, currentState.totalDuration));", | |
| " ", | |
| " this.state.update(s => ({", | |
| " ...s,", | |
| "- playheadPosition: Math.max(0, Math.min(newPosition, s.totalDuration))", | |
| "+ playheadPosition: clampedPosition", | |
| " }));", | |
| "+", | |
| "+ // Sync position to playback service for seeking (but don't call too frequently during drag)", | |
| "+ this.playbackService.seek(currentState.tracks, clampedPosition);", | |
| " }", | |
| " ", | |
| " // Fix for issue #96: Handle media item dragging and resizing at document level for touch events" | |
| ] | |
| } | |
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| [2025-12-05T10:39:29.465Z] [INFO] { | |
| "type": "assistant", | |
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| "model": "claude-opus-4-5-20251101", | |
| "id": "msg_016CyfeDq1NWitqtJxQ49z5T", | |
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| { | |
| "type": "text", | |
| "text": "Now let me update the `onMediaSelected` method to pass the URL from the MediaLibraryItem:" | |
| } | |
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| [2025-12-05T10:39:35.180Z] [INFO] { | |
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| "file_path": "/tmp/gh-issue-solver-1764930855025/video-timeline/src/app/components/timeline/timeline.component.ts", | |
| "old_string": " // Create the final non-overlapping item\n const newItem: MediaItem = {\n id: `item-${Date.now()}`,\n type: media.type,\n startTime: validatedStartTime,\n duration: adjustedDuration,\n trackId: this.mediaLibraryTargetTrackId,\n name: media.name,\n isPlaceholder: false\n };\n\n // Set maxDuration for audio and video\n if (media.type === MediaType.VIDEO) {\n newItem.maxDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n } else if (media.type === MediaType.AUDIO) {\n newItem.maxDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n }", | |
| "new_string": " // Create the final non-overlapping item\n const newItem: MediaItem = {\n id: `item-${Date.now()}`,\n type: media.type,\n startTime: validatedStartTime,\n duration: adjustedDuration,\n trackId: this.mediaLibraryTargetTrackId,\n name: media.name,\n url: media.url, // Pass URL from media library for playback\n isPlaceholder: false\n };\n\n // Set maxDuration for audio and video\n if (media.type === MediaType.VIDEO) {\n newItem.maxDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n } else if (media.type === MediaType.AUDIO) {\n newItem.maxDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n }" | |
| } | |
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| [2025-12-05T10:39:35.589Z] [INFO] { | |
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| "tool_use_id": "toolu_01V6anGbg2VQwAakL2VafuHc", | |
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| "content": "The file /tmp/gh-issue-solver-1764930855025/video-timeline/src/app/components/timeline/timeline.component.ts has been updated. Here's the result of running `cat -n` on a snippet of the edited file:\n 906→ // Recalculate duration limit if position was adjusted\n 907→ const adjus****************ation = totalDuration - validatedStartTime;\n 908→ const adjustedDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n 909→\n 910→ // Create the final non-overlapping item\n 911→ const newItem: MediaItem = {\n 912→ id: `item-${Date.now()}`,\n 913→ type: media.type,\n 914→ startTime: validatedStartTime,\n 915→ duration: adjustedDuration,\n 916→ trackId: this.mediaLibraryTargetTrackId,\n 917→ name: media.name,\n 918→ url: media.url, // Pass URL from media library for playback\n 919→ isPlaceholder: false\n 920→ };\n 921→\n 922→ // Set maxDuration for audio and video\n 923→ if (media.type === MediaType.VIDEO) {\n 924→ newItem.maxDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n 925→ } else if (media.type === MediaType.AUDIO) {\n 926→ newItem.maxDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n 927→ }\n 928→\n 929→ this.state.update(s => ({\n 930→ ...s,\n 931→ tracks: s.tracks.map(t =>" | |
| } | |
| ] | |
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| "filePath": "/tmp/gh-issue-solver-1764930855025/video-timeline/src/app/components/timeline/timeline.component.ts", | |
| "oldString": " // Create the final non-overlapping item\n const newItem: MediaItem = {\n id: `item-${Date.now()}`,\n type: media.type,\n startTime: validatedStartTime,\n duration: adjustedDuration,\n trackId: this.mediaLibraryTargetTrackId,\n name: media.name,\n isPlaceholder: false\n };\n\n // Set maxDuration for audio and video\n if (media.type === MediaType.VIDEO) {\n newItem.maxDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n } else if (media.type === MediaType.AUDIO) {\n newItem.maxDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n }", | |
| "newString": " // Create the final non-overlapping item\n const newItem: MediaItem = {\n id: `item-${Date.now()}`,\n type: media.type,\n startTime: validatedStartTime,\n duration: adjustedDuration,\n trackId: this.mediaLibraryTargetTrackId,\n name: media.name,\n url: media.url, // Pass URL from media library for playback\n isPlaceholder: false\n };\n\n // Set maxDuration for audio and video\n if (media.type === MediaType.VIDEO) {\n newItem.maxDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n } else if (media.type === MediaType.AUDIO) {\n newItem.maxDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n }", | |
| "originalFile": "import { Component, signal, computed, ViewChild, ElementRef, AfterViewInit, OnDestroy, effect } from '@angular/core';\nimport { CommonModule } from '@angular/common';\nimport { MediaType, MediaItem, Track, TimelineState } from '../../models/timeline.models';\nimport { MediaLibraryComponent, MediaLibraryItem } from '../media-library/media-library.component';\nimport { Media***********onent } from '../media-toolbar/media-toolbar.component';\nimport { Notif************onent } from '../notifications/notifications.component';\nimport { Timel*************rvice } from '../../services/timeline-drag-drop.service';\nimport { PlaybackService } from '../../services/playback.service';\n\n@Component({\n selector: 'app-timeline',\n standalone: true,\n imports: [CommonModule, MediaLibraryComponent, MediaToolbarComponent, NotificationsComponent],\n templateUrl: './timeline.component.html',\n styleUrl: './timeline.component.css'\n})\nexport class TimelineComponent implements AfterViewInit, OnDestroy {\n // Zoom levels: pixels per second\n private readonly MIN_ZOOM = 10;\n private readonly MAX_ZOOM = 200;\n private readonly ZOOM_STEP = 20;\n readonly TRACK_HEADER_WIDTH = 150; // Width of track header in pixels\n private readonly SNAP_PROXIMITY_MS = 500; // Snap to item if playhead is within 500ms\n private readonly MIN_ITEM_DURATION = 100; // Minimum item duration in milliseconds\n\n // Canvas dimensions for preview\n readonly PREVIEW_WIDTH = 640;\n readonly PREVIEW_HEIGHT = 360;\n\n // View references\n @ViewChild('timelineRuler') timelineRuler?: ElementRef<HTMLElement>;\n @ViewChild('notifications') notificationsComponent?: NotificationsComponent;\n @ViewChild('previewCanvas') previewCanvas?: ElementRef<HTMLCanvasElement>;\n\n // Timeline state\n readonly state = signal<TimelineState>({\n tracks: [\n { id: '1', name: 'Track 1', order: 0, items: [] },\n { id: '2', name: 'Track 2', order: 1, items: [] }\n ],\n playheadPosition: 0,\n zoomLevel: 50, // pixels per second\n totalDuration: 120000, // 120 seconds in milliseconds\n selectedItemId: null\n });\n\n // Computed values\n readonly pixel**********econd = computed(() => {\n return this.state().zoomLevel / 1000;\n });\n\n readonly timelineWidth = computed(() => {\n const state = this.state();\n // Calculate the maximum end time across all tracks\n let maxEndTime = state.totalDuration;\n\n for (const track of state.tracks) {\n for (const item of track.items) {\n const itemEndTime = item.startTime + item.duration;\n if (itemEndTime > maxEndTime) {\n maxEndTime = itemEndTime;\n }\n }\n }\n\n return maxEndTime * this.pixelsPerMillisecond();\n });\n\n readonly timelineLineHeight = computed(() => {\n const state = this.state();\n return state.tracks.length * 60 + 32;\n });\n\n readonly playheadPosition = computed(() => {\n return this.state().playheadPosition * this.pixelsPerMillisecond();\n });\n\n readonly playh************ition = computed(() => {\n return this.playheadPosition() + this.TRACK_HEADER_WIDTH;\n });\n\n // Computed: whether a media item is currently selected\n readonly hasSelectedItem = computed(() => {\n return this.state().selectedItemId !== null;\n });\n\n // Dragging state\n private draggedItem: MediaItem | null = null;\n private draggedItemOriginalTrackId: string | null = null;\n private dragOffsetTime: number = 0; // Offset in milliseconds from item start to cursor position\n private isDraggingPlayhead = false;\n private isDraggingFromRuler = false;\n private resizingItem: { item: MediaItem; edge: 'left' | 'right' } | null = null;\n private mouseDownPosition: { x: number; y: number } | null = null; // Track mouse down position for click detection\n\n // Video preview state\n readonly isPlaying = signal<boolean>(false);\n\n // Duration editor state\n readonly showDurationEditor = signal<boolean>(false);\n private editedDuration: number = 120; // Duration in seconds\n\n // Media library state\n readonly showMediaLibrary = signal<boolean>(false);\n private mediaLibraryTargetTrackId: string | null = null;\n\n // Clipboard state for copy/paste functionality\n private readonly clipboardItem = signal<MediaItem | null>(null);\n private readonly clipb************ackId = signal<string | null>(null);\n\n // Computed: whether a media item is in clipboard\n readonly hasClipboardItem = computed(() => {\n return this.clipboardItem() !== null;\n });\n\n // Render loop ID for cleanup\n private renderLoopId: number | null = null;\n\n constructor(\n private dragDropService: TimelineDragDropService,\n public playbackService: PlaybackService\n ) {\n // Effect to sync playhead position from PlaybackService during playback\n effect(() => {\n if (this.playbackService.isPlaying()) {\n const position = this.playbackService.playheadPosition();\n this.state.update(s => ({\n ...s,\n playheadPosition: position\n }));\n }\n });\n }\n\n ngAfterViewInit(): void {\n // Initialize canvas for preview rendering\n if (this.previewCanvas) {\n this.playbackService.setCanvas(this.previewCanvas.nativeElement);\n }\n\n // Start continuous render loop for preview (renders current frame even when paused)\n this.startRenderLoop();\n }\n\n ngOnDestroy(): void {\n // Clean up render loop\n if (this.renderLoopId !== null) {\n cancelAnimationFrame(this.renderLoopId);\n this.renderLoopId = null;\n }\n\n // Stop playback\n this.playbackService.stop();\n }\n\n /**\n * Continuous render loop for preview canvas.\n * Keeps rendering even when paused so seeking updates the preview.\n */\n private startRenderLoop(): void {\n const render = () => {\n // Only render if we have active media and are not playing\n // (PlaybackService handles rendering during playback)\n if (!this.playbackService.isPlaying()) {\n this.playbackService.renderCurrentFrame();\n }\n this.renderLoopId = requestAnimationFrame(render);\n };\n this.renderLoopId = requestAnimationFrame(render);\n }\n\n // Track management\n addTrack(): void {\n const currentState = this.state();\n const newTrack: Track = {\n id: `track-${Date.now()}`,\n name: `Track ${currentState.tracks.length + 1}`,\n order: currentState.tracks.length,\n items: []\n };\n\n this.state.update(s => ({\n ...s,\n tracks: [...s.tracks, newTrack]\n }));\n }\n\n removeTrack(trackId: string): void {\n const currentState = this.state();\n if (currentState.tracks.length <= 1) {\n return; // Keep at least one track\n }\n\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.filter(t => t.id !== trackId)\n }));\n }\n\n // Zoom controls\n zoomIn(): void {\n this.state.update(s => ({\n ...s,\n zoomLevel: Math.min(s.zoomLevel + this.ZOOM_STEP, this.MAX_ZOOM)\n }));\n }\n\n zoomOut(): void {\n this.state.update(s => ({\n ...s,\n zoomLevel: Math.max(s.zoomLevel - this.ZOOM_STEP, this.MIN_ZOOM)\n }));\n }\n\n // Utility method to extract coordinates from mouse or touch events\n private getEventCoordinates(event: MouseEvent | TouchEvent): { clientX: number; clientY: number } {\n if (event instanceof MouseEvent) {\n return { clientX: event.clientX, clientY: event.clientY };\n } else {\n const touch = event.touches[0] || event.changedTouches[0];\n return { clientX: touch.clientX, clientY: touch.clientY };\n }\n }\n\n // Playhead controls\n onRulerPointerDown(event: MouseEvent | TouchEvent): void {\n event.preventDefault();\n this.isDraggingFromRuler = true;\n\n // Immediately update position on pointer down\n const target = event.currentTarget as HTMLElement;\n const rect = target.getBoundingClientRect();\n const coords = this.getEventCoordinates(event);\n // Calculate position within the ruler element\n // getBoundingClientRect() already accounts for scroll, so we don't add scrollLeft\n const x = coords.clientX - rect.left;\n const newPosition = x / this.pixelsPerMillisecond();\n const currentState = this.state();\n const clampedPosition = Math.max(0, Math.min(newPosition, currentState.totalDuration));\n\n this.state.update(s => ({\n ...s,\n playheadPosition: clampedPosition\n }));\n\n // Sync position to playback service for seeking\n this.playbackService.seek(currentState.tracks, clampedPosition);\n }\n\n onPlayheadPointerDown(event: MouseEvent | TouchEvent): void {\n event.preventDefault();\n event.stopPropagation();\n this.isDraggingPlayhead = true;\n }\n\n\n // Media item drag and drop\n onMediaItemPointerDown(event: MouseEvent | TouchEvent, item: MediaItem, track: Track): void {\n const target = event.target as HTMLElement;\n\n // Check if clicking/touching on resize handle\n if (target.classList.contains('resize-handle')) {\n this.resizingItem = {\n item,\n edge: target.classList.contains('resize-handle-left') ? 'left' : 'right'\n };\n event.preventDefault();\n return;\n }\n\n const coords = this.getEventCoordinates(event);\n this.mouseDownPosition = { x: coords.clientX, y: coords.clientY };\n\n const mediaItemElement = event.currentTarget as HTMLElement;\n const rect = mediaItemElement.getBoundingClientRect();\n const clickX = coords.clientX - rect.left;\n\n // Convert pixel offset to time offset\n this.dragOffsetTime = clickX / this.pixelsPerMillisecond();\n\n this.draggedItem = item;\n this.draggedItemOriginalTrackId = track.id;\n event.preventDefault();\n }\n\n onTrackPointerDown(event: MouseEvent | TouchEvent): void {\n // Deselect when clicking/touching track background (not on media item)\n const target = event.target as HTMLElement;\n if (target.classList.contains('track')) {\n this.deselectMediaItem();\n }\n }\n\n onTrackPointerMove(event: MouseEvent | TouchEvent, track: Track): void {\n if (this.resizingItem) {\n this.handleResize(event, track);\n return;\n }\n event.preventDefault();\n event.stopPropagation();\n\n if (!this.draggedItem) return;\n\n const coords = this.getEventCoordinates(event);\n const target = event.currentTarget as HTMLElement;\n const rect = target.getBoundingClientRect();\n const x = coords.clientX - rect.left;\n const requestedStartTime = Math.max(0, x / this.pixelsPerMillisecond() - this.dragOffsetTime);\n\n this.state.update(s => {\n const updatedTracks = s.tracks.map(t => {\n if (t.id === track.id) {\n // Get all items except the dragged one for collision detection\n const otherItems = t.items.filter(i => i.id !== this.draggedItem!.id);\n\n // Fix for issue #81: Find snap targets (playhead and items on all tracks)\n const snapTargets = this.dragDropService.findSnapTargets(\n this.draggedItem!.id,\n s.tracks,\n s.playheadPosition\n );\n\n // Calculate valid position and duration considering collisions, gap fitting, and snapping\n const validPosition = this.dragDropService.getValidDragPosition(\n this.draggedItem!,\n requestedStartTime,\n otherItems,\n s.totalDuration,\n snapTargets\n );\n\n // Check if item already exists in this track\n const itemExists = t.items.some(i => i.id === this.draggedItem!.id);\n\n if (itemExists) {\n // Update position and duration in current track\n return {\n ...t,\n items: t.items.map(i =>\n i.id === this.draggedItem!.id\n ? {\n ...i,\n startTime: validPosition.startTime,\n duration: validPosition.duration,\n trackId: track.id\n }\n : i\n )\n };\n } else {\n // Add to new track with adjusted position and duration\n return {\n ...t,\n items: [\n ...otherItems,\n {\n ...this.draggedItem!,\n startTime: validPosition.startTime,\n duration: validPosition.duration,\n trackId: track.id\n }\n ]\n };\n }\n } else if (t.id === this.draggedItemOriginalTrackId && t.id !== track.id) {\n // Remove from original track only if moving to different track\n return {\n ...t,\n items: t.items.filter(i => i.id !== this.draggedItem!.id)\n };\n }\n return t;\n });\n\n // Update the original track ID to current track for smooth dragging within same track\n this.draggedItemOriginalTrackId = track.id;\n\n return { ...s, tracks: updatedTracks };\n });\n }\n\n private handleResize(event: MouseEvent | TouchEvent, track: Track): void {\n if (!this.resizingItem) return;\n\n const coords = this.getEventCoordinates(event);\n const target = event.currentTarget as HTMLElement;\n const rect = target.getBoundingClientRect();\n // Fix for issue #83: getBoundingClientRect() returns viewport-relative coordinates,\n // and coords.clientX is also viewport-relative, so we don't need to add scrollLeft\n const x = coords.clientX - rect.left;\n const timeAtCursor = x / this.pixelsPerMillisecond();\n\n this.state.update(s => {\n // Fix for issue #87: Find snap targets for resize operations\n const snapTargets = this.dragDropService.findSnapTargets(\n this.resizingItem!.item.id,\n s.tracks,\n s.playheadPosition\n );\n\n const updatedTracks = s.tracks.map(t => {\n if (t.id === track.id) {\n // Get resize bounds considering adjacent items\n const bounds = this.dragDropService.getResizeBounds(\n this.resizingItem!.item,\n t.items,\n this.resizingItem!.edge,\n s.totalDuration\n );\n\n return {\n ...t,\n items: t.items.map(i => {\n if (i.id === this.resizingItem!.item.id) {\n if (this.resizingItem!.edge === 'left') {\n // Fix for issue #89: Handle mediaStartTime when resizing from left\n // Apply snapping to left edge (start time)\n let newStartTime = Math.max(\n bounds.minTime,\n Math.min(timeAtCursor, bounds.maxTime)\n );\n\n // Apply snapping if within snap distance\n let minDistance = this.dragDropService.SNAP_DISTANCE_MS;\n for (const target of snapTargets) {\n const distance = Math.abs(newStartTime - target);\n if (distance < minDistance) {\n minDistance = distance;\n // Only snap if within bounds\n if (target >= bounds.minTime && target <= bounds.maxTime) {\n newStartTime = target;\n }\n }\n }\n\n // Calculate how much the timeline position is changing\n const deltaTime = newStartTime - i.startTime;\n const newDuration = i.duration - deltaTime;\n\n // Update media start time (trimming from source media)\n const curre***********tTime = i.mediaStartTime || 0;\n const newMediaStartTime = curre***********tTime + deltaTime;\n\n // Check if we're trying to extend beyond the start of source media\n if (newMediaStartTime < 0) {\n // Can only extend left by curre***********tTime amount\n const maxExtension = currentMediaStartTime;\n const finalStartTime = i.startTime - maxExtension;\n const finalDuration = i.duration + maxExtension;\n\n // Ensure we don't exceed maxDuration\n if (i.maxDuration && finalDuration > i.maxDuration) {\n return {\n ...i,\n startTime: finalStartTime + (finalDuration - i.maxDuration),\n duration: i.maxDuration,\n mediaStartTime: 0\n };\n }\n\n return {\n ...i,\n startTime: finalStartTime,\n duration: finalDuration,\n mediaStartTime: 0\n };\n }\n\n // Ensure media end doesn't exceed maxDuration\n if (i.maxDuration && newMediaStartTime + newDuration > i.maxDuration) {\n const maxAllowedDuration = i.maxDuration - newMediaStartTime;\n return {\n ...i,\n startTime: i.startTime + (i.duration - maxAllowedDuration),\n duration: maxAllowedDuration,\n mediaStartTime: newMediaStartTime\n };\n }\n\n return {\n ...i,\n startTime: newStartTime,\n duration: newDuration,\n mediaStartTime: newMediaStartTime\n };\n } else {\n // Fix for issue #87: Apply snapping to right edge (end time)\n let newEndTime = Math.max(\n bounds.minTime,\n Math.min(timeAtCursor, bounds.maxTime)\n );\n\n // Apply snapping if within snap distance\n let minDistance = this.dragDropService.SNAP_DISTANCE_MS;\n for (const target of snapTargets) {\n const distance = Math.abs(newEndTime - target);\n if (distance < minDistance) {\n minDistance = distance;\n // Only snap if within bounds\n if (target >= bounds.minTime && target <= bounds.maxTime) {\n newEndTime = target;\n }\n }\n }\n\n const newDuration = newEndTime - i.startTime;\n\n // Limit duration by maxDuration if specified\n const limitedDuration = i.maxDuration\n ? Math.min(newDuration, i.maxDuration)\n : newDuration;\n\n return { ...i, duration: limitedDuration };\n }\n }\n return i;\n })\n };\n }\n return t;\n });\n\n return { ...s, tracks: updatedTracks };\n });\n }\n\n onPointerUp(event: MouseEvent | TouchEvent): void {\n // Detect if this was a click/tap (not a drag) on a media item\n if (this.draggedItem && this.mouseDownPosition) {\n const coords = this.getEventCoordinates(event);\n const dx = coords.clientX - this.mouseDownPosition.x;\n const dy = coords.clientY - this.mouseDownPosition.y;\n const distance = Math.sqrt(dx * dx + dy * dy);\n\n // If pointer moved less than 5 pixels, consider it a click/tap\n if (distance < 5) {\n this.selectMediaItem(this.draggedItem.id);\n }\n }\n\n this.draggedItem = null;\n this.draggedItemOriginalTrackId = null;\n this.dragOffsetTime = 0;\n this.isDraggingPlayhead = false;\n this.isDraggingFromRuler = false;\n this.resizingItem = null;\n this.mouseDownPosition = null;\n }\n\n onDocumentPointerMove(event: MouseEvent | TouchEvent): void {\n if (this.isDraggingPlayhead || this.isDraggingFromRuler) {\n // Fix for issue #50: Use ViewChild reference to ensure we use the exact same element as onRulerPointerDown\n if (!this.timelineRuler) {\n return;\n }\n\n const coords = this.getEventCoordinates(event);\n const rulerElement = this.timelineRuler.nativeElement;\n // Use the same calculation as onRulerPointerDown\n // getBoundingClientRect() already accounts for scroll, so we don't add scrollLeft\n const rect = rulerElement.getBoundingClientRect();\n const x = coords.clientX - rect.left;\n const newPosition = x / this.pixelsPerMillisecond();\n const currentState = this.state();\n const clampedPosition = Math.max(0, Math.min(newPosition, currentState.totalDuration));\n\n this.state.update(s => ({\n ...s,\n playheadPosition: clampedPosition\n }));\n\n // Sync position to playback service for seeking (but don't call too frequently during drag)\n this.playbackService.seek(currentState.tracks, clampedPosition);\n }\n\n // Fix for issue #96: Handle media item dragging and resizing at document level for touch events\n // This allows dragging between tracks on mobile devices\n if (event instanceof TouchEvent) {\n if (this.draggedItem) {\n // Find which track the touch is currently over\n const targetTrack = this.findTrackAtCoordinates(this.getEventCoordinates(event));\n if (targetTrack) {\n // Reuse existing drag logic\n this.onTrackPointerMove(event, targetTrack);\n }\n } else if (this.resizingItem) {\n // Find the track that contains the resizing item\n const targetTrack = this.findTrackContainingItem(this.resizingItem.item.id);\n if (targetTrack) {\n // Reuse existing resize logic\n this.handleResize(event, targetTrack);\n }\n }\n }\n }\n\n // Helper method to find which track is at the given Y coordinate\n private findTrackAtCoordinates(coords: { clientX: number; clientY: number }): Track | null {\n const trackElements = document.querySelectorAll('.track');\n for (const trackElement of Array.from(trackElements)) {\n const rect = trackElement.getBoundingClientRect();\n if (coords.clientY >= rect.top && coords.clientY <= rect.bottom) {\n const trackIndex = Array.from(trackElements).indexOf(trackElement);\n const tracks = this.state().tracks;\n if (trackIndex >= 0 && trackIndex < tracks.length) {\n return tracks[trackIndex];\n }\n }\n }\n return null;\n }\n\n // Helper method to find the track containing a specific item\n private findTrackContainingItem(itemId: string): Track | null {\n const currentState = this.state();\n for (const track of currentState.tracks) {\n if (track.items.some(item => item.id === itemId)) {\n return track;\n }\n }\n return null;\n }\n\n // Helper methods\n getItemStyle(item: MediaItem) {\n return {\n left: `${item.startTime * this.pixelsPerMillisecond()}px`,\n width: `${item.duration * this.pixelsPerMillisecond()}px`\n };\n }\n\n getMediaTypeClass(type: MediaType): string {\n return `media-${type}`;\n }\n\n formatTime(milliseconds: number): string {\n const seconds = Math.floor(milliseconds / 1000);\n const minutes = Math.floor(seconds / 60);\n const remainingSeconds = seconds % 60;\n const cs = Math.floor((milliseconds % 1000) / 10);\n return `${minutes}:${remainingSeconds.toString().padStart(2, '0')}.${cs.toString().padStart(2, '0')}`;\n }\n\n /**\n * Calculate appropriate time interval for markers based on zoom level\n * to prevent marker labels from overlapping\n */\n private getMarkerInterval(): number {\n // Minimum spacing between markers in pixels to prevent overlap\n // Enough space for \"0:00.000\" text (about 50-60px)\n const MIN_M***********NG_PX = 60;\n\n // Calculate how much time represents MIN_M***********NG_PX at current zoom\n const pixelsPerMs = this.pixelsPerMillisecond();\n const minTimeSpacing = MIN_M***********NG_PX / pixelsPerMs;\n\n // Define possible intervals (in ms): 100ms, 250ms, 500ms, 1s, 2s, 5s, 10s, 30s, 60s\n const intervals = [100, 250, 500, 1000, 2000, 5000, 10000, 30000, 60000];\n\n // Find the smallest interval that's larger than or equal to minTimeSpacing\n for (const interval of intervals) {\n if (interval >= minTimeSpacing) {\n return interval;\n }\n }\n\n // If even 60s is too small, use larger intervals\n return Math.ceil(minTimeSpacing / 60000) * 60000;\n }\n\n getTimeMarkers(): { position: number; label: string }[] {\n const markers: { position: number; label: string }[] = [];\n const stepMs = this.getMarkerInterval(); // Dynamic interval based on zoom level\n\n // Fix for issue #85: Do not show the last time mark at totalDuration\n // to prevent container expansion from the text label\n for (let time = 0; time < this.state().totalDuration; time += stepMs) {\n markers.push({\n position: time * this.pixelsPerMillisecond(),\n label: this.formatTime(time)\n });\n }\n\n return markers;\n }\n\n // Add placeholder media item\n addMediaItem(type: MediaType, trackId: string): void {\n const currentState = this.state();\n const track = currentState.tracks.find(t => t.id === trackId);\n\n if (!track) return;\n\n const playheadTime = currentState.playheadPosition;\n const totalDuration = currentState.totalDuration;\n const newItemDuration = type === MediaType.IMAGE ? 5000 : 3000;\n\n // Determine the start time for the new item using the service\n const startTime = this.dragDropService.calculateNewItemStartTime(\n playheadTime,\n track.items,\n this.SNAP_PROXIMITY_MS\n );\n\n // Fix for issue #48: Ensure new item doesn't exceed totalDuration\n const maxAllowedDuration = totalDuration - startTime;\n const finalDuration = Math.min(newItemDuration, maxAllowedDuration);\n\n // Fix for issue #64: Verify that the new item doesn't overlap with any existing items\n const testItem: MediaItem = {\n id: 'temp',\n type,\n startTime,\n duration: finalDuration,\n trackId,\n name: '',\n isPlaceholder: true\n };\n\n // Validate and adjust position if needed\n const validatedStartTime = this.dragDropService.validateItemPosition(testItem, track.items);\n\n // Recalculate duration limit if position was adjusted\n const adjus****************ation = totalDuration - validatedStartTime;\n const adjustedDuration = Math.min(newItemDuration, adjustedMaxAllowedDuration);\n\n // Create the final non-overlapping item\n const newItem: MediaItem = {\n id: `item-${Date.now()}`,\n type,\n startTime: validatedStartTime,\n duration: adjustedDuration,\n trackId,\n name: `${type} placeholder`,\n isPlaceholder: true\n };\n\n // Set maxDuration for audio and video placeholders\n if (type === MediaType.VIDEO) {\n newItem.maxDuration = Math.min(10000, adjustedMaxAllowedDuration); // 10 seconds default for video\n } else if (type === MediaType.AUDIO) {\n newItem.maxDuration = Math.min(15000, adjustedMaxAllowedDuration); // 15 seconds default for audio\n }\n\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t =>\n t.id === trackId\n ? { ...t, items: [...t.items, newItem] }\n : t\n )\n }));\n }\n\n removeMediaItem(itemId: string, trackId: string): void {\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t =>\n t.id === trackId\n ? { ...t, items: t.items.filter(i => i.id !== itemId) }\n : t\n ),\n // Deselect if removing selected item\n selectedItemId: s.selectedItemId === itemId ? null : s.selectedItemId\n }));\n }\n\n // Media selection\n selectMediaItem(itemId: string): void {\n this.state.update(s => ({\n ...s,\n selectedItemId: itemId\n }));\n }\n\n deselectMediaItem(): void {\n this.state.update(s => ({\n ...s,\n selectedItemId: null\n }));\n }\n\n isItemSelected(itemId: string): boolean {\n return this.state().selectedItemId === itemId;\n }\n\n readonly MediaType = MediaType;\n\n // Video preview controls\n togglePlayback(): void {\n const currentState = this.state();\n\n if (this.playbackService.isPlaying()) {\n this.playbackService.pause();\n this.isPlaying.set(false);\n } else {\n // Sync playhead position to PlaybackService before starting\n this.playbackService.setPlayheadPosition(currentState.playheadPosition);\n this.playbackService.play(currentState.tracks, currentState.totalDuration);\n this.isPlaying.set(true);\n }\n }\n\n skipBackward(): void {\n const currentState = this.state();\n const newPosition = Math.max(0, currentState.playheadPosition - 5000);\n\n this.state.update(s => ({\n ...s,\n playheadPosition: newPosition\n }));\n\n // Sync position and update media\n this.playbackService.seek(currentState.tracks, newPosition);\n }\n\n skipForward(): void {\n const currentState = this.state();\n const newPosition = Math.min(currentState.totalDuration, currentState.playheadPosition + 5000);\n\n this.state.update(s => ({\n ...s,\n playheadPosition: newPosition\n }));\n\n // Sync position and update media\n this.playbackService.seek(currentState.tracks, newPosition);\n }\n\n // Duration editor methods\n openDurationEditor(): void {\n this.editedDuration = this.state().totalDuration / 1000;\n this.showDurationEditor.set(true);\n }\n\n closeDurationEditor(): void {\n this.showDurationEditor.set(false);\n }\n\n onDurationInputChange(event: Event): void {\n const input = event.target as HTMLInputElement;\n const value = parseFloat(input.value);\n if (!isNaN(value) && value > 0) {\n this.editedDuration = value;\n }\n }\n\n saveDuration(): void {\n const newDurationMs = Math.max(1000, this.editedDuration * 1000); // At least 1 second\n this.state.update(s => ({\n ...s,\n totalDuration: newDurationMs,\n // Ensure playhead doesn't exceed new duration\n playheadPosition: Math.min(s.playheadPosition, newDurationMs)\n }));\n this.closeDurationEditor();\n }\n\n // Media library methods\n openMediaLibrary(trackId: string): void {\n this.mediaLibraryTargetTrackId = trackId;\n this.showMediaLibrary.set(true);\n }\n\n closeMediaLibrary(): void {\n this.showMediaLibrary.set(false);\n this.mediaLibraryTargetTrackId = null;\n }\n\n onMediaSelected(media: MediaLibraryItem): void {\n if (!this.mediaLibraryTargetTrackId) return;\n\n const currentState = this.state();\n const track = currentState.tracks.find(t => t.id === this.mediaLibraryTargetTrackId);\n\n if (!track) return;\n\n const playheadTime = currentState.playheadPosition;\n const totalDuration = currentState.totalDuration;\n\n // Determine the start time for the new item using the service\n const startTime = this.dragDropService.calculateNewItemStartTime(\n playheadTime,\n track.items,\n this.SNAP_PROXIMITY_MS\n );\n\n // Ensure item doesn't exceed totalDuration\n const maxAllowedDuration = totalDuration - startTime;\n const finalDuration = Math.min(media.duration, maxAllowedDuration);\n\n // Verify that the new item doesn't overlap with any existing items\n const testItem: MediaItem = {\n id: 'temp',\n type: media.type,\n startTime,\n duration: finalDuration,\n trackId: this.mediaLibraryTargetTrackId,\n name: '',\n isPlaceholder: false\n };\n\n // Validate and adjust position if needed\n const validatedStartTime = this.dragDropService.validateItemPosition(testItem, track.items);\n\n // Recalculate duration limit if position was adjusted\n const adjus****************ation = totalDuration - validatedStartTime;\n const adjustedDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n\n // Create the final non-overlapping item\n const newItem: MediaItem = {\n id: `item-${Date.now()}`,\n type: media.type,\n startTime: validatedStartTime,\n duration: adjustedDuration,\n trackId: this.mediaLibraryTargetTrackId,\n name: media.name,\n isPlaceholder: false\n };\n\n // Set maxDuration for audio and video\n if (media.type === MediaType.VIDEO) {\n newItem.maxDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n } else if (media.type === MediaType.AUDIO) {\n newItem.maxDuration = Math.min(media.duration, adjustedMaxAllowedDuration);\n }\n\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t =>\n t.id === this.mediaLibraryTargetTrackId\n ? { ...t, items: [...t.items, newItem] }\n : t\n )\n }));\n\n // Close the media library after selection\n this.closeMediaLibrary();\n }\n\n /**\n * Trim (split) the selected media item at the playhead position.\n * Creates two separate items from the original media.\n */\n trimSelectedMedia(): void {\n const currentState = this.state();\n const selectedItemId = currentState.selectedItemId;\n\n if (!selectedItemId) {\n return;\n }\n\n // Find the selected item and its track\n let selectedItem: MediaItem | null = null;\n let selectedTrack: Track | null = null;\n\n for (const track of currentState.tracks) {\n const item = track.items.find(i => i.id === selectedItemId);\n if (item) {\n selectedItem = item;\n selectedTrack = track;\n break;\n }\n }\n\n if (!selectedItem || !selectedTrack) {\n return;\n }\n\n const playheadTime = currentState.playheadPosition;\n const itemStart = selectedItem.startTime;\n const itemEnd = itemStart + selectedItem.duration;\n\n // Check if playhead is within the selected media item\n if (playheadTime <= itemStart || playheadTime >= itemEnd) {\n // Playhead is not within the selected media - show notification\n this.notificationsComponent?.showNotification(\n 'Position the playhead within the selected media to trim it.',\n 'warning'\n );\n return;\n }\n\n // Ensure both parts will have at least MIN_ITEM_DURATION\n const firstPartDuration = playheadTime - itemStart;\n const secondPartDuration = itemEnd - playheadTime;\n\n if (firstPartDuration < this.MIN_ITEM_DURATION || secondPartDuration < this.MIN_ITEM_DURATION) {\n this.notificationsComponent?.showNotification(\n 'Cannot trim: resulting parts would be too short.',\n 'warning'\n );\n return;\n }\n\n // Calculate mediaStartTime adjustments\n const origi************tTime = selectedItem.mediaStartTime || 0;\n const secon**************tTime = origi************tTime + firstPartDuration;\n\n // Create two new items from the original\n const firstPart: MediaItem = {\n ...selectedItem,\n id: `item-${Date.now()}-1`,\n duration: firstPartDuration\n // mediaStartTime stays the same for first part\n };\n\n const secondPart: MediaItem = {\n ...selectedItem,\n id: `item-${Date.now()}-2`,\n startTime: playheadTime,\n duration: secondPartDuration,\n mediaStartTime: secondPartMediaStartTime\n };\n\n // Update the state: remove original, add two new parts\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t => {\n if (t.id === selectedTrack!.id) {\n return {\n ...t,\n items: [\n ...t.items.filter(i => i.id !== selectedItemId),\n firstPart,\n secondPart\n ]\n };\n }\n return t;\n }),\n // Deselect after trimming\n selectedItemId: null\n }));\n\n this.notificationsComponent?.showNotification(\n 'Media trimmed successfully.',\n 'success'\n );\n }\n\n /**\n * Copy the selected media item to the clipboard.\n * Stores a copy of the item and the track it was copied from.\n */\n copySelectedMedia(): void {\n const currentState = this.state();\n const selectedItemId = currentState.selectedItemId;\n\n if (!selectedItemId) {\n return;\n }\n\n // Find the selected item and its track\n let selectedItem: MediaItem | null = null;\n let selectedTrackId: string | null = null;\n\n for (const track of currentState.tracks) {\n const item = track.items.find(i => i.id === selectedItemId);\n if (item) {\n selectedItem = item;\n selectedTrackId = track.id;\n break;\n }\n }\n\n if (!selectedItem || !selectedTrackId) {\n return;\n }\n\n // Store a copy of the item in clipboard\n this.clipboardItem.set({ ...selectedItem });\n this.clipboardSourceTrackId.set(selectedTrackId);\n\n this.notificationsComponent?.showNotification(\n 'Media copied to clipboard.',\n 'success'\n );\n }\n\n /**\n * Paste the clipboard media item at the playhead position.\n * Pastes on the same track where the item was copied from.\n * If there's no space at playhead position, finds the next available slot.\n */\n pasteMedia(): void {\n const copiedItem = this.clipboardItem();\n const sourceTrackId = this.clipboardSourceTrackId();\n\n if (!copiedItem || !sourceTrackId) {\n return;\n }\n\n const currentState = this.state();\n const playheadTime = currentState.playheadPosition;\n const totalDuration = currentState.totalDuration;\n\n // Find the source track\n let targetTrack = currentState.tracks.find(t => t.id === sourceTrackId);\n\n // If source track no longer exists, use the first track\n if (!targetTrack) {\n targetTrack = currentState.tracks[0];\n if (!targetTrack) {\n this.notificationsComponent?.showNotification(\n 'No tracks available to paste media.',\n 'error'\n );\n return;\n }\n }\n\n const itemDuration = copiedItem.duration;\n\n // Try to find a valid position starting from playhead\n const pastePosition = this.findPastePosition(\n playheadTime,\n itemDuration,\n targetTrack.items,\n totalDuration\n );\n\n if (pastePosition === null) {\n this.notificationsComponent?.showNotification(\n 'No space available to paste media on this track.',\n 'warning'\n );\n return;\n }\n\n // Create a new item with a new ID\n const newItem: MediaItem = {\n ...copiedItem,\n id: `item-${Date.now()}`,\n startTime: pastePosition,\n trackId: targetTrack.id\n };\n\n // Add the new item to the track\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t =>\n t.id === targetTrack!.id\n ? { ...t, items: [...t.items, newItem] }\n : t\n )\n }));\n\n this.notificationsComponent?.showNotification(\n 'Media pasted successfully.',\n 'success'\n );\n }\n\n /**\n * Find a valid position to paste media item.\n * First tries at the playhead position, then finds the next available gap.\n */\n private findPastePosition(\n preferredPosition: number,\n duration: number,\n existingItems: MediaItem[],\n totalDuration: number\n ): number | null {\n // Check if we can fit at the preferred position (playhead)\n if (this.canFitAtPosition(preferredPosition, duration, existingItems, totalDuration)) {\n return preferredPosition;\n }\n\n // Sort existing items by start time\n const sortedItems = [...existingItems].sort((a, b) => a.startTime - b.startTime);\n\n // Find all gaps on the track and try to place the item\n const gaps = this.dragDropService.findAllGaps(sortedItems);\n\n // First, try to find a gap that starts at or after the playhead\n for (const gap of gaps) {\n // Calculate actual gap size (considering totalDuration for infinite gaps)\n const effectiveGapEnd = gap.gapEnd === Infinity ? totalDuration : gap.gapEnd;\n const gapSize = effectiveGapEnd - gap.gapStart;\n\n if (gap.gapStart >= preferredPosition && gapSize >= duration) {\n return gap.gapStart;\n }\n }\n\n // If no gap after playhead, try any gap that can fit the item\n for (const gap of gaps) {\n // Calculate actual gap size (considering totalDuration for infinite gaps)\n const effectiveGapEnd = gap.gapEnd === Infinity ? totalDuration : gap.gapEnd;\n const gapSize = effectiveGapEnd - gap.gapStart;\n\n if (gapSize >= duration) {\n return gap.gapStart;\n }\n }\n\n // No suitable position found\n return null;\n }\n\n /**\n * Check if an item can fit at a specific position without overlapping.\n */\n private canFitAtPosition(\n position: number,\n duration: number,\n existingItems: MediaItem[],\n totalDuration: number\n ): boolean {\n // Check bounds\n if (position < 0 || position + duration > totalDuration) {\n return false;\n }\n\n // Check for overlaps with existing items\n const endPosition = position + duration;\n for (const item of existingItems) {\n const itemEnd = item.startTime + item.duration;\n // Check if there's an overlap\n if (position < itemEnd && endPosition > item.startTime) {\n return false;\n }\n }\n\n return true;\n }\n}\n", | |
| "structuredPatch": [ | |
| { | |
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| "oldLines": 6, | |
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| "lines": [ | |
| " duration: adjustedDuration,", | |
| " trackId: this.mediaLibraryTargetTrackId,", | |
| " name: media.name,", | |
| "+ url: media.url, // Pass URL from media library for playback", | |
| " isPlaceholder: false", | |
| " };", | |
| " " | |
| ] | |
| } | |
| ], | |
| "userModified": false, | |
| "replaceAll": false | |
| } | |
| } | |
| [2025-12-05T10:39:39.576Z] [INFO] { | |
| "type": "assistant", | |
| "message": { | |
| "model": "claude-opus-4-5-20251101", | |
| "id": "msg_01BSFkCkB3q7xpLFhY6SqfiQ", | |
| "type": "message", | |
| "role": "assistant", | |
| "content": [ | |
| { | |
| "type": "text", | |
| "text": "Now let me update the HTML template to replace the placeholder preview with a Canvas element:" | |
| } | |
| ], | |
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| "uuid": "d696b9e0-f29f-4820-987c-fcaab8395a97" | |
| } | |
| [2025-12-05T10:39:44.428Z] [INFO] { | |
| "type": "assistant", | |
| "message": { | |
| "model": "claude-opus-4-5-20251101", | |
| "id": "msg_01BSFkCkB3q7xpLFhY6SqfiQ", | |
| "type": "message", | |
| "role": "assistant", | |
| "content": [ | |
| { | |
| "type": "tool_use", | |
| "id": "toolu_01Bb7oT4eWFiQfT79g6ieHME", | |
| "name": "Edit", | |
| "input": { | |
| "file_path": "/tmp/gh-issue-solver-1764930855025/video-timeline/src/app/components/timeline/timeline.component.html", | |
| "old_string": " <!-- Video Preview Area -->\n <div class=\"flex justify-center items-center py-6 bg-[#252525] border-b border-[#3a3a3a]\">\n <div class=\"flex flex-col items-center gap-3\">\n <!-- Video Preview Placeholder -->\n <div class=\"w-[640px] h-[360px] bg-[#1a1a1a] rounded-lg border border-[#3a3a3a] flex items-center justify-center\">\n <div class=\"flex flex-col items-center gap-2 text-gray-400\">\n <i class=\"bi bi-film text-6xl\"></i>\n <span class=\"text-sm\">Video preview</span>\n </div>\n </div>", | |
| "new_string": " <!-- Video Preview Area -->\n <div class=\"flex justify-center items-center py-6 bg-[#252525] border-b border-[#3a3a3a]\">\n <div class=\"flex flex-col items-center gap-3\">\n <!-- Video Preview Canvas -->\n <div class=\"w-[640px] h-[360px] bg-[#1a1a1a] rounded-lg border border-[#3a3a3a] flex items-center justify-center overflow-hidden\">\n <canvas #previewCanvas\n [width]=\"PREVIEW_WIDTH\"\n [height]=\"PREVIEW_HEIGHT\"\n class=\"w-full h-full\">\n </canvas>\n </div>" | |
| } | |
| } | |
| ], | |
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| "session_id": "d5b1bf94-1397-44f7-9390-3c57ba19d0b0", | |
| "uuid": "952c4049-4e4e-405f-a4a5-0b2423fd903c" | |
| } | |
| [2025-12-05T10:39:44.784Z] [INFO] {"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01Bb7oT4eWFiQfT79g6ieHME","type":"tool_result","content":"The file /tmp/gh-issue-solver-1764930855025/video-timeline/src/app/components/timeline/timeline.component.html has been updated. Here's the result of running `cat -n` on a snippet of the edited file:\n 10→ </div>\n 11→ </div>\n 12→ </div>\n 13→\n 14→ <!-- Video Preview Area -->\n 15→ <div class=\"flex justify-center items-center py-6 bg-[#252525] border-b border-[#3a3a3a]\">\n 16→ <div class=\"flex flex-col items-center gap-3\">\n 17→ <!-- Video Preview Canvas -->\n 18→ <div class=\"w-[640px] h-[360px] bg-[#1a1a1a] rounded-lg border border-[#3a3a3a] flex items-center justify-center overflow-hidden\">\n 19→ <canvas #previewCanvas\n 20→ [width]=\"PREVIEW_WIDTH\"\n 21→ [height]=\"PREVIEW_HEIGHT\"\n 22→ class=\"w-full h-full\">\n 23→ </canvas>\n 24→ </div>\n 25→\n 26→ <!-- Playback Controls -->\n 27→ <div class=\"flex gap-2 items-center\">\n 28→ <button (click)=\"skipBackward()\" class=\"px-3 py-2 bg-[#3a3a3a] text-white border-none rounded cursor-pointer text-base transition-colors hover:bg-[#4a4a4a] flex items-center gap-1.5\" title=\"Back 5 seconds\">"}]},"parent_tool_use_id":null,"session_id":"d5b1bf94-1397-44f7-9390-3c57ba19d0b0","uuid":"6796ea9a-315a-469b-9f0f-c00dc345b771","tool_use_result":{"filePath":"/tmp/gh-issue-solver-1764930855025/video-timeline/src/app/components/timeline/timeline.component.html","oldString":" <!-- Video Preview Area -->\n <div class=\"flex justify-center items-center py-6 bg-[#252525] border-b border-[#3a3a3a]\">\n <div class=\"flex flex-col items-center gap-3\">\n <!-- Video Preview Placeholder -->\n <div class=\"w-[640px] h-[360px] bg-[#1a1a1a] rounded-lg border border-[#3a3a3a] flex items-center justify-center\">\n <div class | |
| [2025-12-05T10:39:44.817Z] [INFO] =\"flex flex-col items-center gap-2 text-gray-400\">\n <i class=\"bi bi-film text-6xl\"></i>\n <span class=\"text-sm\">Video preview</span>\n </div>\n </div>","newString":" <!-- Video Preview Area -->\n <div class=\"flex justify-center items-center py-6 bg-[#252525] border-b border-[#3a3a3a]\">\n <div class=\"flex flex-col items-center gap-3\">\n <!-- Video Preview Canvas -->\n <div class=\"w-[640px] h-[360px] bg-[#1a1a1a] rounded-lg border border-[#3a3a3a] flex items-center justify-center overflow-hidden\">\n <canvas #previewCanvas\n [width]=\"PREVIEW_WIDTH\"\n [height]=\"PREVIEW_HEIGHT\"\n class=\"w-full h-full\">\n </canvas>\n </div>","originalFile":"<div class=\"flex flex-col h-full bg-[#1e1e1e] text-gray-200 select-none\" (mouseup)=\"onPointerUp($event)\" (mousemove)=\"onDocumentPointerMove($event)\" (touchend)=\"onPointerUp($event)\" (touchmove)=\"onDocumentPointerMove($event)\">\n <!-- Toolbar -->\n <div class=\"flex justify-between items-center px-4 py-3 bg-[#252525] border-b border-[#3a3a3a]\">\n <h2 class=\"text-lg font-semibold m-0\">VideoEditor</h2>\n <div class=\"flex gap-4 items-center\">\n <div class=\"font-mono text-sm px-3 py-1 bg-[#2a2a2a] rounded cursor-pointer hover:bg-[#3a3a3a] transition-colors\"\n (click)=\"openDurationEditor()\"\n title=\"Click to change total duration\">\n {{ formatTime(state().playheadPosition) }} / {{ formatTime(state().totalDuration) }}\n </div>\n </div>\n </div>\n\n <!-- Video Preview Area -->\n <div class=\"flex justify-center items-center py-6 bg-[#252525] border-b border-[#3a3a3a]\">\n <div class=\"flex flex-col items-center gap-3\">\n <!-- Video Preview Placeholder -->\n <div class=\"w-[640px] h-[360px] bg-[#1a1a1a] rounded-lg border border-[#3a3a3a] flex items-center justify-center\">\n <div class=\"flex flex-col items-center gap-2 text-gray-400\">\n <i class=\"bi bi-film text-6xl\"></i>\n <span class=\"text-sm\">Video preview</span>\n </div>\n </div>\n\n <!-- Playback Controls -->\n <div class=\"flex gap-2 items-center\">\n <button (click)=\"skipBackward()\" class=\"px-3 py-2 bg-[#3a3a3a] text-white border-none rounded cursor-pointer text-base transition-colors hover:bg-[#4a4a4a] flex items-center gap-1.5\" title=\"Back 5 seconds\">\n <i class=\"bi bi-skip-backward-fill\"></i>\n <span class=\"text-xs\">5s</span>\n </button>\n <button (click)=\"togglePlayback()\" class=\"px-4 py-2 bg-blue-600 text-white border-none rounded cursor-pointer text-xl transition-colors hover:bg-blue-700\" [title]=\"isPlaying() ? 'Pause' : 'Play'\">\n @if (isPlaying()) {\n <i class=\"bi bi-pause-fill\"></i>\n } @else {\n <i class=\"bi bi-play-fill\"></i>\n }\n </button>\n <button (click)=\"skipForward()\" class=\"px-3 py-2 bg-[#3a3a3a] text-white border-none rounded cursor-pointer text-base transition-colors hover:bg-[#4a4a4a] flex items-center gap-1.5\" title=\"Forward 5 seconds\">\n <span class=\"text-xs\">5s</span>\n <i class=\"bi bi-skip-forward-fill\"></i>\n </button>\n </div>\n </div>\n </div>\n\n <div class=\"relative\">\n <!-- Media Toolbar (positioned absolutely above timeline, aligned with left panel) -->\n <app-media-toolbar\n [isVisible]=\"hasSelectedItem()\"\n [hasClipboard]=\"hasClipboardItem()\"\n (trimMedia)=\"trimSelectedMedia()\"\n (copyMedia)=\"copySelectedMedia()\"\n (pasteMedia)=\"pasteMedia()\">\n </app-media-toolbar>\n </div>\n <!-- Timeline content wrapper with unified horizontal scrolling -->\n <div class=\"flex-1 flex flex-col overflow-y-auto overflow-x-auto relative\">\n <!-- Timeline Ruler (sticky to stay visible during vertical scroll) -->\n <div class=\"flex border-b border-[#3a3a3a] flex-shrink-0 sticky top-0 z-10 bg-[#2a2a2a] relative\">\n <!-- Control area to align with track headers -->\n <div class=\"min-w-[150px] bg-[#252525] border-r border-[#3a3a3a] flex justify-center items-center gap-1 p-2\">\n <button (click)=\"addTrack()\" class=\"px-2 py-1 text-white border-none rounded cursor-pointer text-sm opacity-70 transition-opacity hover:opacity-100\" title=\"Add track\">\n <i class=\"bi bi-plus-circle\"></i>\n </button>\n <button (click)=\"zoomOut()\" class=\"px-2 py-1 text-white border-none rounded cursor-pointer text-sm opacity-70 transition-opacity hover:opacity-100\" title=\"Zoom out\">\n <i class=\"bi bi-zoom-out\"></i>\n </button>\n <button (click)=\"zoomIn()\" class=\"px-2 py-1 text-white border-none rounded cursor-pointer text-sm opacity-70 transition-opacity hover:opacity-100\" title=\"Zoom in\">\n <i class=\"bi bi-zoom-in\"></i>\n </button>\n </div>\n <!-- Ruler content -->\n <div class=\"relative h-10 bg-[#2a2a2a] flex-1\">\n <div class=\"relative h-full min-w-full cursor-pointer\"\n [style.width.px]=\"timelineWidth()\"\n (mousedown)=\"onRulerPointerDown($event)\"\n (touchstart)=\"onRulerPointerDown($event)\"\n #timelineRuler>\n @for (marker of getTimeMarkers(); track marker.position) {\n <div class=\"absolute top-0 h-full\" [style.left.px]=\"marker.position\">\n <div class=\"w-px h-[60%] bg-[#4a4a4a]\"></div>\n <div class=\"text-[10px] text-gray-400 mt-0.5 whitespace-nowrap\">{{ marker.label }}</div>\n </div>\n }\n </div>\n <!-- Playhead - positioned in ruler container to stay visible -->\n <div class=\"absolute top-0 pointer-events-none z-[5]\"\n [style.left.px]=\"playheadPosition()\"\n (mousedown)=\"onPlayheadPointerDown($event)\"\n (touchstart)=\"onPlayheadPointerDown($event)\">\n <div class=\"absolute -left-1.5 top-4 w-3 h-3 bg-red-500 rounded-sm cursor-ew-resize pointer-events-auto\"></div>\n <div class=\"absolute left-0 top-4 w-0.5 bg-red-500 pointer-events-none\" [style.height.px]=\"timelineLineHeight()\"></div>\n </div>\n </div>\n </div>\n\n <!-- Tracks -->\n <div class=\"flex-1\" [style.width.px]=\"timelineWidth() + TRACK_HEADER_WIDTH\">\n @for (track of state().tracks; track track.id; let i = $index) {\n <div class=\"flex border-b border-[#3a3a3a] min-h-[60px]\">\n <!-- Track header -->\n <div class=\"flex items-center justify-between min-w-[150px] p-2 bg-[#252525] border-r border-[#3a3a3a]\">\n <span class=\"text-sm font-medium\">Track {{ i + 1 }}</span>\n <div class=\"flex gap-1\">\n <button\n (click)=\"openMediaLibrary(track.id)\"\n class=\"p-1 text-base text-white border-none bg-transparent cursor-pointer transition-opacity opacity-70 hover:opacity-100\"\n title=\"Add media\">\n <i class=\"bi bi-plus-circle\"></i>\n </button>\n <button\n (click)=\"removeTrack(track.id)\"\n class=\"p-1 text-base text-red-500 border-none bg-transparent cursor-pointer transition-opacity opacity-70 hover:opacity-100\"\n title=\"Remove track\">\n <i class=\"bi bi-trash\"></i>\n </button>\n </div>\n </div>\n\n <!-- Track timeline -->\n <div class=\"relative flex-1\">\n <div class=\"track relative bg-[#1a1a1a] min-h-[60px]\"\n (mousemove)=\"onTrackPointerMove($event, track)\"\n (mousedown)=\"onTrackPointerDown($event)\"\n (touchmove)=\"onTrackPointerMove($event, track)\"\n (touchstart)=\"onTrackPointerDown($event)\">\n\n @for (item of track.items; track item.id) {\n <div class=\"media-item group absolute h-12 top-1.5 rounded border-2 border-transparent cursor-move flex items-center overflow-hidden transition-colors hover:border-white/30\"\n [class]=\"getMediaTypeClass(item.type)\"\n [class.selected]=\"isItemSelected(item.id)\"\n [style.left]=\"getItemStyle(item).left\"\n [style.width]=\"getItemStyle(item).width\"\n (mousedown)=\"onMediaItemPointerDown($event, item, track)\"\n (touchstart)=\"onMediaItemPointerDown($event, item, track)\">\n\n <div class=\"resize-handle resize-handle-left absolute top-0 left-0 w-2 h-full cursor-ew-resize z-[2] bg-gradient-to-r from-white/30 to-transparent hover:bg-white/50\"></div>\n\n <div class=\"flex items-center gap-1.5 px-2 flex-1 overflow-hidden\">\n <div class=\"text-lg flex-shrink-0\">\n @switch (item.type) {\n @case (MediaType.VIDEO) {\n <i class=\"bi bi-camera-video-fill\"></i>\n }\n @case (MediaType.AUDIO) {\n <i class=\"bi bi-volume-up-fill\"></i>\n }\n @case (MediaType.IMAGE) {\n <i class=\"bi bi-image-fill\"></i>\n }\n }\n </div>\n <div class=\"flex flex-col overflow-hidden flex-1\">\n <div class=\"text-[11px] font-medium whitespace-nowrap overflow-hidden text-ellipsis\">{{ item.name }}</div>\n <div class=\"text-[9px] text-white/60 font-mono\">\n @if (item.mediaStartTime && item.mediaStartTime > 0) {\n <span>{{ formatTime(item.mediaStartTime) }} - </span>\n }\n {{ formatTime(item.duration) }}\n </div>\n </div>\n </div>\n\n <div class=\"resize-handle resize-handle-right absolute top-0 right-0 w-2 h-full cursor-ew-resize z-[2] bg-gradient-to-l from-white/30 to-transparent hover:bg-white/50\"></div>\n\n <button\n class=\"media-item-delete absolute top-0.5 right-0.5 w-5 h-5 bg-black/60 text-white border-none rounded-full cursor-pointer text-xs leading-none p-0 hidden items-center justify-center hover:bg-red-600\"\n (click)=\"removeMediaItem(item.id, track.id); $event.stopPropagation()\">\n <i class=\"bi bi-x\"></i>\n </button>\n </div>\n }\n </div>\n </div>\n </div>\n }\n </div>\n </div>\n\n <!-- Duration Editor Modal -->\n @if (showDurationEditor()) {\n <div class=\"fixed inset-0 bg-black/50 flex items-center justify-center z-[2000]\" (click)=\"closeDurationEditor()\">\n <div class=\"bg-[#2a2a2a] rounded-lg p-6 min-w-[400px] border border-[#3a3a3a]\" (click)=\"$event.stopPropagation()\">\n <h3 class=\"text-lg font-semibold mb-4 mt-0\">Total video duration</h3>\n\n <div class=\"mb-4\">\n <label class=\"block text-sm text-gray-400 mb-2\">Duration (in seconds):</label>\n <input\n type=\"number\"\n min=\"1\"\n max=\"3600\"\n step=\"1\"\n [value]=\"state().totalDuration / 1000\"\n (input)=\"onDurationInputChange($event)\"\n class=\"w-full px-3 py-2 bg-[#1e1e1e] border border-[#3a3a3a] rounded text-white focus:outline-none focus:border-blue-500\"\n placeholder=\"60\">\n <div class=\"text-xs text-gray-500 mt-1\">Current value: {{ formatTime(state().totalDuration) }}</div>\n </div>\n\n <div class=\"flex gap-2 justify-end\">\n <button\n (click)=\"closeDurationEditor()\"\n class=\"px-4 py-2 bg-[#3a3a3a] text-white border-none rounded cursor-pointer transition-colors hover:bg-[#4a4a4a]\">\n Cancel\n </button>\n <button\n (click)=\"saveDuration()\"\n class=\"px-4 py-2 bg-blue-600 text-white border-none rounded cursor-pointer transition-colors hover:bg-blue-700\">\n Save\n </button>\n </div>\n </div>\n </div>\n }\n\n <!-- Media Library Modal -->\n @if (showMediaLibrary()) {\n <app-media-library\n (closeModal)=\"closeMediaLibrary()\"\n (selectMedia)=\"onMediaSelected($event)\">\n </app-media-library>\n }\n\n <!-- Notifications -->\n <app-notifications #notifications></app-notifications>\n</div>\n","structuredPatch":[{"oldStart":14,"oldLines":12,"newStart":14,"newLines":13,"lines":[" <!-- Video Preview Area -->"," <div class=\"flex justify-center items-center py-6 bg-[#252525] border-b border-[#3a3a3a]\">"," <div class=\"flex flex-col items-center gap-3\">","- <!-- Video Preview Placeholder -->","- <div class=\"w-[640px] h-[360px] bg-[#1a1a1a] rounded-lg border border-[#3a3a3a] flex items-center justify-center\">","- <div class=\"flex flex-col items-center gap-2 text-gray-400\">","- <i class=\"bi bi-film text-6xl\"></i>","- <span class=\"text-sm\">Video preview</span>","- </div>","+ <!-- Video Preview Canvas -->","+ <div class=\"w-[640px] h-[360px] bg-[#1a1a1a] rounded-lg border border-[#3a3a3a] flex items-center justify-center overflow-hidden\">","+ <canvas #previewCanvas","+ [width]=\"PREVIEW_WIDTH\"","+ [height]=\"PREVIEW_HEIGHT\"","+ class=\"w-full h-full\">","+ </canvas>"," </div>"," "," <!-- Playback Controls -->"]}],"userModified":false,"replaceAll":false}} | |
| [2025-12-05T10:39:52.328Z] [INFO] { | |
| "type": "assistant", | |
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| "content": "Explore codebase structure and understand existing timeline implementation", | |
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| "content": "Create PlaybackService to manage playback state and control media elements", | |
| "status": "completed", | |
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| "content": "Update MediaItem model to store url property", | |
| "status": "completed", | |
| "activeForm": "Updating MediaItem model" | |
| }, | |
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| "content": "Update timeline component to use PlaybackService and Canvas preview", | |
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| "content": "Update onMediaSelected to pass URL from MediaLibraryItem to MediaItem", | |
| "status": "completed", | |
| "activeForm": "Updating media selection" | |
| }, | |
| { | |
| "content": "Fix trimSelectedMedia and copySelectedMedia to preserve URL", | |
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| "activeForm": "Fixing copy/trim to preserve URL" | |
| }, | |
| { | |
| "content": "Run local CI checks before pushing", | |
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| { | |
| "content": "Finalize PR and ensure all CI checks pass", | |
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| [2025-12-05T10:39:52.557Z] [INFO] { | |
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| { | |
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| "content": "Todos have been modified successfully. Ensure that you continue to use the todo list to track your progress. Please proceed with the current tasks if applicable" | |
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| "content": "Explore codebase structure and understand existing timeline implementation", | |
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| }, | |
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| }, | |
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| "content": "Update onMediaSelected to pass URL from MediaLibraryItem to MediaItem", | |
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| "content": "Explore codebase structure and understand existing timeline implementation", | |
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| "content": "Fix trimSelectedMedia and copySelectedMedia to preserve URL", | |
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| "content": "Run local CI checks before pushing", | |
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| } | |
| ] | |
| } | |
| } | |
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| { | |
| "type": "text", | |
| "text": "I notice that `trimSelectedMedia` creates new items using the spread operator, which should preserve the URL. However, let me verify this by reading the current trim method and then check if the copy/paste methods also properly preserve the URL:" | |
| } | |
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| "content": " 1000→\n 1001→ // Create two new items from the original\n 1002→ const firstPart: MediaItem = {\n 1003→ ...selectedItem,\n 1004→ id: `item-${Date.now()}-1`,\n 1005→ duration: firstPartDuration\n 1006→ // mediaStartTime stays the same for first part\n 1007→ };\n 1008→\n 1009→ const secondPart: MediaItem = {\n 1010→ ...selectedItem,\n 1011→ id: `item-${Date.now()}-2`,\n 1012→ startTime: playheadTime,\n 1013→ duration: secondPartDuration,\n 1014→ mediaStartTime: secondPartMediaStartTime\n 1015→ };\n 1016→\n 1017→ // Update the state: remove original, add two new parts\n 1018→ this.state.update(s => ({\n 1019→ ...s,\n 1020→ tracks: s.tracks.map(t => {\n 1021→ if (t.id === selectedTrack!.id) {\n 1022→ return {\n 1023→ ...t,\n 1024→ items: [\n 1025→ ...t.items.filter(i => i.id !== selectedItemId),\n 1026→ firstPart,\n 1027→ secondPart\n 1028→ ]\n 1029→ };\n 1030→ }\n 1031→ return t;\n 1032→ }),\n 1033→ // Deselect after trimming\n 1034→ selectedItemId: null\n 1035→ }));\n 1036→\n 1037→ this.notificationsComponent?.showNotification(\n 1038→ 'Media trimmed successfully.',\n 1039→ 'success'\n 1040→ );\n 1041→ }\n 1042→\n 1043→ /**\n 1044→ * Copy the selected media item to the clipboard.\n 1045→ * Stores a copy of the item and the track it was copied from.\n 1046→ */\n 1047→ copySelectedMedia(): void {\n 1048→ const currentState = this.state();\n 1049→ const selectedItemId = currentState.selectedItemId;\n 1050→\n 1051→ if (!selectedItemId) {\n 1052→ return;\n 1053→ }\n 1054→\n 1055→ // Find the selected item and its track\n 1056→ let selectedItem: MediaItem | null = null;\n 1057→ let selectedTrackId: string | null = null;\n 1058→\n 1059→ for (const track of currentState.tracks) {\n 1060→ const item = track.items.find(i => i.id === selectedItemId);\n 1061→ if (item) {\n 1062→ selectedItem = item;\n 1063→ selectedTrackId = track.id;\n 1064→ break;\n 1065→ }\n 1066→ }\n 1067→\n 1068→ if (!selectedItem || !selectedTrackId) {\n 1069→ return;\n 1070→ }\n 1071→\n 1072→ // Store a copy of the item in clipboard\n 1073→ this.clipboardItem.set({ ...selectedItem });\n 1074→ this.clipboardSourceTrackId.set(selectedTrackId);\n 1075→\n 1076→ this.notificationsComponent?.showNotification(\n 1077→ 'Media copied to clipboard.',\n 1078→ 'success'\n 1079→ );\n 1080→ }\n 1081→\n 1082→ /**\n 1083→ * Paste the clipboard media item at the playhead position.\n 1084→ * Pastes on the same track where the item was copied from.\n 1085→ * If there's no space at playhead position, finds the next available slot.\n 1086→ */\n 1087→ pasteMedia(): void {\n 1088→ const copiedItem = this.clipboardItem();\n 1089→ const sourceTrackId = this.clipboardSourceTrackId();\n 1090→\n 1091→ if (!copiedItem || !sourceTrackId) {\n 1092→ return;\n 1093→ }\n 1094→\n 1095→ const currentState = this.state();\n 1096→ const playheadTime = currentState.playheadPosition;\n 1097→ const totalDuration = currentState.totalDuration;\n 1098→\n 1099→ // Find the source track\n 1100→ let targetTrack = currentState.tracks.find(t => t.id === sourceTrackId);\n 1101→\n 1102→ // If source track no longer exists, use the first track\n 1103→ if (!targetTrack) {\n 1104→ targetTrack = currentState.tracks[0];\n 1105→ if (!targetTrack) {\n 1106→ this.notificationsComponent?.showNotification(\n 1107→ 'No tracks available to paste media.',\n 1108→ 'error'\n 1109→ );\n 1110→ return;\n 1111→ }\n 1112→ }\n 1113→\n 1114→ const itemDuration = copiedItem.duration;\n 1115→\n 1116→ // Try to find a valid position starting from playhead\n 1117→ const pastePosition = this.findPastePosition(\n 1118→ playheadTime,\n 1119→ itemDuration,\n 1120→ targetTrack.items,\n 1121→ totalDuration\n 1122→ );\n 1123→\n 1124→ if (pastePosition === null) {\n 1125→ this.notificationsComponent?.showNotification(\n 1126→ 'No space available to paste media on this track.',\n 1127→ 'warning'\n 1128→ );\n 1129→ return;\n 1130→ }\n 1131→\n 1132→ // Create a new item with a new ID\n 1133→ const newItem: MediaItem = {\n 1134→ ...copiedItem,\n 1135→ id: `item-${Date.now()}`,\n 1136→ startTime: pastePosition,\n 1137→ trackId: targetTrack.id\n 1138→ };\n 1139→\n 1140→ // Add the new item to the track\n 1141→ this.state.update(s => ({\n 1142→ ...s,\n 1143→ tracks: s.tracks.map(t =>\n 1144→ t.id === targetTrack!.id\n 1145→ ? { ...t, items: [...t.items, newItem] }\n 1146→ : t\n 1147→ )\n 1148→ }));\n 1149→\n 1150→ this.notificationsComponent?.showNotification(\n 1151→ 'Media pasted successfully.',\n 1152→ 'success'\n 1153→ );\n 1154→ }\n 1155→\n 1156→ /**\n 1157→ * Find a valid position to paste media item.\n 1158→ * First tries at the playhead position, then finds the next available gap.\n 1159→ */\n 1160→ private findPastePosition(\n 1161→ preferredPosition: number,\n 1162→ duration: number,\n 1163→ existingItems: MediaItem[],\n 1164→ totalDuration: number\n 1165→ ): number | null {\n 1166→ // Check if we can fit at the preferred position (playhead)\n 1167→ if (this.canFitAtPosition(preferredPosition, duration, existingItems, totalDuration)) {\n 1168→ return preferredPosition;\n 1169→ }\n 1170→\n 1171→ // Sort existing items by start time\n 1172→ const sortedItems = [...existingItems].sort((a, b) => a.startTime - b.startTime);\n 1173→\n 1174→ // Find all gaps on the track and try to place the item\n 1175→ const gaps = this.dragDropService.findAllGaps(sortedItems);\n 1176→\n 1177→ // First, try to find a gap that starts at or after the playhead\n 1178→ for (const gap of gaps) {\n 1179→ // Calculate actual gap size (considering totalDuration for infinite gaps)\n 1180→ const effectiveGapEnd = gap.gapEnd === Infinity ? totalDuration : gap.gapEnd;\n 1181→ const gapSize = effectiveGapEnd - gap.gapStart;\n 1182→\n 1183→ if (gap.gapStart >= preferredPosition && gapSize >= duration) {\n 1184→ return gap.gapStart;\n 1185→ }\n 1186→ }\n 1187→\n 1188→ // If no gap after playhead, try any gap that can fit the item\n 1189→ for (const gap of gaps) {\n 1190→ // Calculate actual gap size (considering totalDuration for infinite gaps)\n 1191→ const effectiveGapEnd = gap.gapEnd === Infinity ? totalDuration : gap.gapEnd;\n 1192→ const gapSize = effectiveGapEnd - gap.gapStart;\n 1193→\n 1194→ if (gapSize >= duration) {\n 1195→ return gap.gapStart;\n 1196→ }\n 1197→ }\n 1198→\n 1199→ // No suitable position found\n\n<system-reminder>\nWhenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.\n</system-reminder>\n" | |
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| "content": "\n // Create two new items from the original\n const firstPart: MediaItem = {\n ...selectedItem,\n id: `item-${Date.now()}-1`,\n duration: firstPartDuration\n // mediaStartTime stays the same for first part\n };\n\n const secondPart: MediaItem = {\n ...selectedItem,\n id: `item-${Date.now()}-2`,\n startTime: playheadTime,\n duration: secondPartDuration,\n mediaStartTime: secondPartMediaStartTime\n };\n\n // Update the state: remove original, add two new parts\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t => {\n if (t.id === selectedTrack!.id) {\n return {\n ...t,\n items: [\n ...t.items.filter(i => i.id !== selectedItemId),\n firstPart,\n secondPart\n ]\n };\n }\n return t;\n }),\n // Deselect after trimming\n selectedItemId: null\n }));\n\n this.notificationsComponent?.showNotification(\n 'Media trimmed successfully.',\n 'success'\n );\n }\n\n /**\n * Copy the selected media item to the clipboard.\n * Stores a copy of the item and the track it was copied from.\n */\n copySelectedMedia(): void {\n const currentState = this.state();\n const selectedItemId = currentState.selectedItemId;\n\n if (!selectedItemId) {\n return;\n }\n\n // Find the selected item and its track\n let selectedItem: MediaItem | null = null;\n let selectedTrackId: string | null = null;\n\n for (const track of currentState.tracks) {\n const item = track.items.find(i => i.id === selectedItemId);\n if (item) {\n selectedItem = item;\n selectedTrackId = track.id;\n break;\n }\n }\n\n if (!selectedItem || !selectedTrackId) {\n return;\n }\n\n // Store a copy of the item in clipboard\n this.clipboardItem.set({ ...selectedItem });\n this.clipboardSourceTrackId.set(selectedTrackId);\n\n this.notificationsComponent?.showNotification(\n 'Media copied to clipboard.',\n 'success'\n );\n }\n\n /**\n * Paste the clipboard media item at the playhead position.\n * Pastes on the same track where the item was copied from.\n * If there's no space at playhead position, finds the next available slot.\n */\n pasteMedia(): void {\n const copiedItem = this.clipboardItem();\n const sourceTrackId = this.clipboardSourceTrackId();\n\n if (!copiedItem || !sourceTrackId) {\n return;\n }\n\n const currentState = this.state();\n const playheadTime = currentState.playheadPosition;\n const totalDuration = currentState.totalDuration;\n\n // Find the source track\n let targetTrack = currentState.tracks.find(t => t.id === sourceTrackId);\n\n // If source track no longer exists, use the first track\n if (!targetTrack) {\n targetTrack = currentState.tracks[0];\n if (!targetTrack) {\n this.notificationsComponent?.showNotification(\n 'No tracks available to paste media.',\n 'error'\n );\n return;\n }\n }\n\n const itemDuration = copiedItem.duration;\n\n // Try to find a valid position starting from playhead\n const pastePosition = this.findPastePosition(\n playheadTime,\n itemDuration,\n targetTrack.items,\n totalDuration\n );\n\n if (pastePosition === null) {\n this.notificationsComponent?.showNotification(\n 'No space available to paste media on this track.',\n 'warning'\n );\n return;\n }\n\n // Create a new item with a new ID\n const newItem: MediaItem = {\n ...copiedItem,\n id: `item-${Date.now()}`,\n startTime: pastePosition,\n trackId: targetTrack.id\n };\n\n // Add the new item to the track\n this.state.update(s => ({\n ...s,\n tracks: s.tracks.map(t =>\n t.id === targetTrack!.id\n ? { ...t, items: [...t.items, newItem] }\n : t\n )\n }));\n\n this.notificationsComponent?.showNotification(\n 'Media pasted successfully.',\n 'success'\n );\n }\n\n /**\n * Find a valid position to paste media item.\n * First tries at the playhead position, then finds the next available gap.\n */\n private findPastePosition(\n preferredPosition: number,\n duration: number,\n existingItems: MediaItem[],\n totalDuration: number\n ): number | null {\n // Check if we can fit at the preferred position (playhead)\n if (this.canFitAtPosition(preferredPosition, duration, existingItems, totalDuration)) {\n return preferredPosition;\n }\n\n // Sort existing items by start time\n const sortedItems = [...existingItems].sort((a, b) => a.startTime - b.startTime);\n\n // Find all gaps on the track and try to place the item\n const gaps = this.dragDropService.findAllGaps(sortedItems);\n\n // First, try to find a gap that starts at or after the playhead\n for (const gap of gaps) {\n // Calculate actual gap size (considering totalDuration for infinite gaps)\n const effectiveGapEnd = gap.gapEnd === Infinity ? 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| "text": "The trim, copy, and paste methods all use the spread operator (`...selectedItem` and `...copiedItem`), which will preserve the `url` property automatically. \n\nNow let me run the local CI checks to make sure everything compiles:" | |
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| "content": "<status>running</status>\n\n<stdout>\n> [email protected] test\n> ng test --no-watch --browsers=ChromeHeadless\n\n❯ Building...\n✔ Building...\nInitial chunk files | Names | Raw size\nchunk-OZPV6NG3.js | - | 2.42 MB | \npolyfills.js | polyfills | 944.09 kB | \nstyles.css | styles | 124.56 kB | \nchunk-6EI7BR52.js | - | 83.58 kB | \ntest_main.js | test_main | 60.00 kB | \nspec-app-components-timeline-timeline.component.spec.js | spec-app-components-timeline-timeline.component.spec | 47.24 kB | \nchunk-EDHG5LMI.js | - | 8.72 kB | \nspec-app-components-media-library-media-library.component.spec.js | spec-app-components-media-library-media-library.component.spec | 3.52 kB | \nspec-app-app.spec.js | spec-app-app.spec | 2.20 kB | \njasmine-cleanup-0.js | jasmine-cleanup-0 | 519 bytes | \n\n | Initial total | 3.69 MB\n\nApplication bundle generation complete. [38.539 seconds] - 2025-12-05T10:45:08.536Z\n\n\u001b[32m05 12 2025 10:45:13.120:INFO [karma-server]: \u001b[39mKarma v6.4.4 server started at http://localhost:9876/\n\u001b[32m05 12 2025 10:45:13.128:INFO [launcher]: \u001b[39mLaunching browsers ChromeHeadless with concurrency unlimited\n\u001b[32m05 12 2025 10:45:13.150:INFO [launcher]: \u001b[39mStarting browser ChromeHeadless\n\u001b[91m05 12 2025 10:45:13.859:ERROR [launcher]: \u001b[39mCannot start ChromeHeadless\n\t[2099039:2099039:1205/104513.508465:FATAL:content/browser/zygote_host/zygote_host_impl_linux.cc:128] No usable sandbox! If you are running on Ubuntu 23.10+ or another Linux distro that has disabled unprivileged user namespaces with AppArmor, see https://chromium.googlesource.com/chromium/src/+/main/docs/security/apparmor-userns-restrictions.md. Otherwise see https://chromium.googlesource.com/chromium/src/+/main/docs/linux/suid_sandbox_development.md for more information on developing with the (older) SUID sandbox. If you want to live dangerously and need an immediate workaround, you can try using --no-sandbox.\n[1205/104513.560055:ERROR:third_party/crashpad/crashpad/util/file/file_io_posix.cc:145] open /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq: No such file or directory (2)\n[1205/104513.560162:ERROR:third_party/crashpad/crashpad/util/file/file_io_posix.cc:145] open /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq: No such file or directory (2)\nReceived signal 6\n#0 0x579fcb64aaaa (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0x5c06aa9)\n#1 0x579fcfcc6154 (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0xa282153)\n#2 0x7e723b845330 (/usr/lib/x86_64-linux-gnu/libc.so.6+0x4532f)\n#3 0x7e723b84527e (/usr/lib/x86_64-linux-gnu/libc.so.6+0x4527d)\n#4 0x7e723b8288ff (/usr/lib/x86_64-linux-gnu/libc.so.6+0x288fe)\n#5 0x579fcfcbcfd5 (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0xa278fd4)\n#6 0x579fcfc7eb1d (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0xa23ab1c)\n#7 0x579fcfc7eab7 (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0xa23aab6)\n#8 0x579fc9c88fd8 (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0x4244fd7)\n#9 0x579fcabf8f99 (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0x51b4f98)\n#10 0x579fcb617cc6 (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0x5bd3cc5)\n#11 0x579fcf0b1bef (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0x966dbee)\n#12 0x579fcb248a21 (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0x5804a20)\n#13 0x579fcb248043 (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0x5804042)\n#14 0x7e723b82a1ca (/usr/lib/x86_64-linux-gnu/libc.so.6+0x2a1c9)\n#15 0x7e723b82a28b (/usr/lib/x86_64-linux-gnu/libc.so.6+0x2a28a)\n#16 0x579fcbef2caa (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0x64aeca9)\n r8: 00001468000a84e9 r9: 0000000000000001 r10: 0000000000000008 r11: 0000000000000246\n r12: 0000000000000006 r13: 000000000000026a r14: 0000000000000016 r15: 00007ffcd9e5fdb8\n di: 000000000020075f si: 000000000020075f bp: 00007ffcd9e5f720 bx: 000000000020075f\n dx: 0000000000000006 ax: 0000000000000000 cx: 00007e723b89eb2c sp: 00007ffcd9e5f6e0\n ip: 00007e723b89eb2c efl: 0000000000000246 cgf: 002b000000000033 erf: 0000000000000000\n trp: 0000000000000000 msk: 0000000000000000 cr2: 0000000000000000\n[end of stack trace]\n\n\u001b[91m05 12 2025 10:45:13.861:ERROR [launcher]: \u001b[39mChromeHeadless stdout: \n\u001b[91m05 12 2025 10:45:13.865:ERROR [launcher]: \u001b[39mChromeHeadless stderr: [2099039:2099039:1205/104513.508465:FATAL:content/browser/zygote_host/zygote_host_impl_linux.cc:128] No usable sandbox! If you are running on Ubuntu 23.10+ or another Linux distro that has disabled unprivileged user namespaces with AppArmor, see https://chromium.googlesource.com/chromium/src/+/main/docs/security/apparmor-userns-restrictions.md. Otherwise see https://chromium.googlesource.com/chromium/src/+/main/docs/linux/suid_sandbox_development.md for more information on developing with the (older) SUID sandbox. If you want to live dangerously and need an immediate workaround, you can try using --no-sandbox.\n[1205/104513.560055:ERROR:third_party/crashpad/crashpad/util/file/file_io_posix.cc:145] open /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq: No such file or directory (2)\n[1205/104513.560162:ERROR:third_party/crashpad/crashpad/util/file/file_io_posix.cc:145] open /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq: No such file or directory (2)\nReceived signal 6\n#0 0x579fcb64aaaa (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0x5c06aa9)\n#1 0x579fcfcc6154 (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0xa282153)\n#2 0x7e723b845330 (/usr/lib/x86_64-linux-gnu/libc.so.6+0x4532f)\n#3 0x7e723b84527e (/usr/lib/x86_64-linux-gnu/libc.so.6+0x4527d)\n#4 0x7e723b8288ff (/usr/lib/x86_64-linux-gnu/libc.so.6+0x288fe)\n#5 0x579fcfcbcfd5 (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0xa278fd4)\n#6 0x579fcfc7eb1d (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0xa23ab1c)\n#7 0x579fcfc7eab7 (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0xa23aab6)\n#8 0x579fc9c88fd8 (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0x4244fd7)\n#9 0x579fcabf8f99 (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0x51b4f98)\n#10 0x579fcb617cc6 (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0x5bd3cc5)\n#11 0x579fcf0b1bef (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0x966dbee)\n#12 0x579fcb248a21 (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0x5804a20)\n#13 0x579fcb248043 (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0x5804042)\n#14 0x7e723b82a1ca (/usr/lib/x86_64-linux-gnu/libc.so.6+0x2a1c9)\n#15 0x7e723b82a28b (/usr/lib/x86_64-linux-gnu/libc.so.6+0x2a28a)\n#16 0x579fcbef2caa (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0x64aeca9)\n r8: 00001468000a84e9 r9: 0000000000000001 r10: 0000000000000008 r11: 0000000000000246\n r12: 0000000000000006 r13: 000000000000026a r14: 0000000000000016 r15: 00007ffcd9e5fdb8\n di: 000000000020075f si: 000000000020075f bp: 00007ffcd9e5f720 bx: 000000000020075f\n dx: 0000000000000006 ax: 0000000000000000 cx: 00007e723b89eb2c sp: 00007ffcd9e5f6e0\n ip: 00007e723b89eb2c efl: 0000000000000246 cgf: 002b000000000033 erf: 0000000000000000\n trp: 0000000000000000 msk: 0000000000000000 cr2: 0000000000000000\n[end of stack trace]\n\n\u001b[32m05 12 2025 10:45:13.882:INFO [launcher]: \u001b[39mTrying to start ChromeHeadless again (1/2).\n\u001b[91m05 12 2025 10:45:14.532:ERROR [launcher]: \u001b[39mCannot start ChromeHeadless\n\t[2099049:2099049:1205/104514.183759:FATAL:content/browser/zygote_host/zygote_host_impl_linux.cc:128] No usable sandbox! If you are running on Ubuntu 23.10+ or another Linux distro that has disabled unprivileged user namespaces with AppArmor, see https://chromium.googlesource.com/chromium/src/+/main/docs/security/apparmor-userns-restrictions.md. Otherwise see https://chromium.googlesource.com/chromium/src/+/main/docs/linux/suid_sandbox_development.md for more information on developing with the (older) SUID sandbox. If you want to live dangerously and need an immediate workaround, you can try using --no-sandbox.\n[1205/104514.232062:ERROR:third_party/crashpad/crashpad/util/file/file_io_posix.cc:145] open /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq: No such file or directory (2)\n[1205/104514.232148:ERROR:third_party/crashpad/crashpad/util/file/file_io_posix.cc:145] open /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq: No such file or directory (2)\nReceived signal 6\n#0 0x5a0013f70aaa (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0x5c06aa9)\n#1 0x5a00185ec154 (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0xa282153)\n#2 0x75abc0c45330 (/usr/lib/x86_64-linux-gnu/libc.so.6+0x4532f)\n#3 0x75abc0c4527e (/usr/lib/x86_64-linux-gnu/libc.so.6+0x4527d)\n#4 0x75abc0c288ff (/usr/lib/x86_64-linux-gnu/libc.so.6+0x288fe)\n#5 0x5a00185e2fd5 (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0xa278fd4)\n#6 0x5a00185a4b1d (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0xa23ab1c)\n#7 0x5a00185a4ab7 (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0xa23aab6)\n#8 0x5a00125aefd8 (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0x4244fd7)\n</stdout>\n\n<timestamp>2025-12-05T10:47:24.959Z</timestamp>" | |
| } | |
| ] | |
| }, | |
| "parent_tool_use_id": null, | |
| "session_id": "d5b1bf94-1397-44f7-9390-3c57ba19d0b0", | |
| "uuid": "162c0259-89f1-4487-aa29-a789c247ecd7", | |
| "tool_use_result": { | |
| "shellId": "09f5a7", | |
| "command": "npm test -- --no-watch --browsers=ChromeHeadless 2>&1 | head -100", | |
| "status": "running", | |
| "exitCode": null, | |
| "stdout": "> [email protected] test\n> ng test --no-watch --browsers=ChromeHeadless\n\n❯ Building...\n✔ Building...\nInitial chunk files | Names | Raw size\nchunk-OZPV6NG3.js | - | 2.42 MB | \npolyfills.js | polyfills | 944.09 kB | \nstyles.css | styles | 124.56 kB | \nchunk-6EI7BR52.js | - | 83.58 kB | \ntest_main.js | test_main | 60.00 kB | \nspec-app-components-timeline-timeline.component.spec.js | spec-app-components-timeline-timeline.component.spec | 47.24 kB | \nchunk-EDHG5LMI.js | - | 8.72 kB | \nspec-app-components-media-library-media-library.component.spec.js | spec-app-components-media-library-media-library.component.spec | 3.52 kB | \nspec-app-app.spec.js | spec-app-app.spec | 2.20 kB | \njasmine-cleanup-0.js | jasmine-cleanup-0 | 519 bytes | \n\n | Initial total | 3.69 MB\n\nApplication bundle generation complete. [38.539 seconds] - 2025-12-05T10:45:08.536Z\n\n\u001b[32m05 12 2025 10:45:13.120:INFO [karma-server]: \u001b[39mKarma v6.4.4 server started at http://localhost:9876/\n\u001b[32m05 12 2025 10:45:13.128:INFO [launcher]: \u001b[39mLaunching browsers ChromeHeadless with concurrency unlimited\n\u001b[32m05 12 2025 10:45:13.150:INFO [launcher]: \u001b[39mStarting browser ChromeHeadless\n\u001b[91m05 12 2025 10:45:13.859:ERROR [launcher]: \u001b[39mCannot start ChromeHeadless\n\t[2099039:2099039:1205/104513.508465:FATAL:content/browser/zygote_host/zygote_host_impl_linux.cc:128] No usable sandbox! If you are running on Ubuntu 23.10+ or another Linux distro that has disabled unprivileged user namespaces with AppArmor, see https://chromium.googlesource.com/chromium/src/+/main/docs/security/apparmor-userns-restrictions.md. Otherwise see https://chromium.googlesource.com/chromium/src/+/main/docs/linux/suid_sandbox_development.md for more information on developing with the (older) SUID sandbox. If you want to live dangerously and need an immediate workaround, you can try using --no-sandbox.\n[1205/104513.560055:ERROR:third_party/crashpad/crashpad/util/file/file_io_posix.cc:145] open /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq: No such file or directory (2)\n[1205/104513.560162:ERROR:third_party/crashpad/crashpad/util/file/file_io_posix.cc:145] open /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq: No such file or directory (2)\nReceived signal 6\n#0 0x579fcb64aaaa (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0x5c06aa9)\n#1 0x579fcfcc6154 (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0xa282153)\n#2 0x7e723b845330 (/usr/lib/x86_64-linux-gnu/libc.so.6+0x4532f)\n#3 0x7e723b84527e (/usr/lib/x86_64-linux-gnu/libc.so.6+0x4527d)\n#4 0x7e723b8288ff (/usr/lib/x86_64-linux-gnu/libc.so.6+0x288fe)\n#5 0x579fcfcbcfd5 (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0xa278fd4)\n#6 0x579fcfc7eb1d (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0xa23ab1c)\n#7 0x579fcfc7eab7 (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0xa23aab6)\n#8 0x579fc9c88fd8 (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0x4244fd7)\n#9 0x579fcabf8f99 (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0x51b4f98)\n#10 0x579fcb617cc6 (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0x5bd3cc5)\n#11 0x579fcf0b1bef (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0x966dbee)\n#12 0x579fcb248a21 (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0x5804a20)\n#13 0x579fcb248043 (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0x5804042)\n#14 0x7e723b82a1ca (/usr/lib/x86_64-linux-gnu/libc.so.6+0x2a1c9)\n#15 0x7e723b82a28b (/usr/lib/x86_64-linux-gnu/libc.so.6+0x2a28a)\n#16 0x579fcbef2caa (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0x64aeca9)\n r8: 00001468000a84e9 r9: 0000000000000001 r10: 0000000000000008 r11: 0000000000000246\n r12: 0000000000000006 r13: 000000000000026a r14: 0000000000000016 r15: 00007ffcd9e5fdb8\n di: 000000000020075f si: 000000000020075f bp: 00007ffcd9e5f720 bx: 000000000020075f\n dx: 0000000000000006 ax: 0000000000000000 cx: 00007e723b89eb2c sp: 00007ffcd9e5f6e0\n ip: 00007e723b89eb2c efl: 0000000000000246 cgf: 002b000000000033 erf: 0000000000000000\n trp: 0000000000000000 msk: 0000000000000000 cr2: 0000000000000000\n[end of stack trace]\n\n\u001b[91m05 12 2025 10:45:13.861:ERROR [launcher]: \u001b[39mChromeHeadless stdout: \n\u001b[91m05 12 2025 10:45:13.865:ERROR [launcher]: \u001b[39mChromeHeadless stderr: [2099039:2099039:1205/104513.508465:FATAL:content/browser/zygote_host/zygote_host_impl_linux.cc:128] No usable sandbox! If you are running on Ubuntu 23.10+ or another Linux distro that has disabled unprivileged user namespaces with AppArmor, see https://chromium.googlesource.com/chromium/src/+/main/docs/security/apparmor-userns-restrictions.md. Otherwise see https://chromium.googlesource.com/chromium/src/+/main/docs/linux/suid_sandbox_development.md for more information on developing with the (older) SUID sandbox. If you want to live dangerously and need an immediate workaround, you can try using --no-sandbox.\n[1205/104513.560055:ERROR:third_party/crashpad/crashpad/util/file/file_io_posix.cc:145] open /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq: No such file or directory (2)\n[1205/104513.560162:ERROR:third_party/crashpad/crashpad/util/file/file_io_posix.cc:145] open /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq: No such file or directory (2)\nReceived signal 6\n#0 0x579fcb64aaaa (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0x5c06aa9)\n#1 0x579fcfcc6154 (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0xa282153)\n#2 0x7e723b845330 (/usr/lib/x86_64-linux-gnu/libc.so.6+0x4532f)\n#3 0x7e723b84527e (/usr/lib/x86_64-linux-gnu/libc.so.6+0x4527d)\n#4 0x7e723b8288ff (/usr/lib/x86_64-linux-gnu/libc.so.6+0x288fe)\n#5 0x579fcfcbcfd5 (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0xa278fd4)\n#6 0x579fcfc7eb1d (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0xa23ab1c)\n#7 0x579fcfc7eab7 (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0xa23aab6)\n#8 0x579fc9c88fd8 (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0x4244fd7)\n#9 0x579fcabf8f99 (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0x51b4f98)\n#10 0x579fcb617cc6 (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0x5bd3cc5)\n#11 0x579fcf0b1bef (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0x966dbee)\n#12 0x579fcb248a21 (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0x5804a20)\n#13 0x579fcb248043 (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0x5804042)\n#14 0x7e723b82a1ca (/usr/lib/x86_64-linux-gnu/libc.so.6+0x2a1c9)\n#15 0x7e723b82a28b (/usr/lib/x86_64-linux-gnu/libc.so.6+0x2a28a)\n#16 0x579fcbef2caa (/home/hive/.cache/puppeteer/chrome/linux-142.0.7444.59/chrome-linux64/chrome+0x64aeca9)\n r8: 00001468000a84e9 r9: 0000000000000001 r10: 0000000000000008 r11: 0000000000000246\n r12: 0000000000000006 r13: 000000000000026a r14: 0000000000000016 r15: 00007ffcd9e5fdb8\n di: 000000000020075f si: 000000000020075f bp: 00007ffcd9e5f720 bx: 000000000020075f\n dx: 0000000000000006 ax: 0000000000000000 cx: 00007e723b89eb2c sp: 00007ffcd9e5f6e0\n ip: 00007e723b89eb2c efl: 0000000000000246 cgf: 002b000000000033 erf: 0000000000000000\n trp: 0000000000000000 msk: 0000000000000000 cr2: 0000000000000000\n[end of stack trace]\n\n\u001b[32m05 12 2025 10:45:13.882:INFO [launcher]: \u001b[39mTrying to start ChromeHeadless again (1/2).\n\u001b[91m05 12 2025 10:45:14.532:ERROR [launcher]: \u001b[39mCannot start ChromeHeadless\n\t[2099049:2099049:1205/104514.183759:FATAL:content/browser/zygote_host/zygote_host_impl_linux.cc:128] No usable sandbox! If you are running on Ubuntu 23.10+ or another Linux distro that has disabled unprivileged user namespaces with AppArmor, see https://chromium.googlesource.com/chromium/src/+/main/docs/security/apparmor-userns-restrictions.md. Otherwise see https://chromium.googlesource.com/chromium/src/+/main/docs/linux/suid_sandbox_development.md for more information on developing with the (older) SUID sandbox. 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| "content": "diff --git a/CLAUDE.md b/CLAUDE.md\nindex a030cd1..e65c0b7 100644\n--- a/CLAUDE.md\n+++ b/CLAUDE.md\n@@ -16,4 +16,16 @@ Original repository (upstream): andchir/video-timeline\n \n Proceed.\n \n-Run timestamp: 2025-11-06T11:14:55.547Z\n\\ No newline at end of file\n+Run timestamp: 2025-11-06T11:14:55.547Z\n+\n+---\n+\n+Issue to solve: https://github.com/andchir/video-timeline/issues/112\n+Your prepared branch: issue-112-ffe66abe5816\n+Your prepared working directory: /tmp/gh-issue-solver-1764930855025\n+Your forked repository: konard/andchir-video-timeline\n+Original repository (upstream): andchir/video-timeline\n+\n+Proceed.\n+\n+Run timestamp: 2025-12-05T10:34:33.165Z\n\\ No newline at end of file\ndiff --git a/video-timeline/src/app/components/timeline/timeline.component.html b/video-timeline/src/app/components/timeline/timeline.component.html\nindex 63e9400..746395a 100644\n--- a/video-timeline/src/app/components/timeline/timeline.component.html\n+++ b/video-timeline/src/app/components/timeline/timeline.component.html\n@@ -14,12 +14,13 @@ <h2 class=\"text-lg font-semibold m-0\">VideoEditor</h2>\n <!-- Video Preview Area -->\n <div class=\"flex justify-center items-center py-6 bg-[#252525] border-b border-[#3a3a3a]\">\n <div class=\"flex flex-col items-center gap-3\">\n- <!-- Video Preview Placeholder -->\n- <div class=\"w-[640px] h-[360px] bg-[#1a1a1a] rounded-lg border border-[#3a3a3a] flex items-center justify-center\">\n- <div class=\"flex flex-col items-center gap-2 text-gray-400\">\n- <i class=\"bi bi-film text-6xl\"></i>\n- <span class=\"text-sm\">Video preview</span>\n- </div>\n+ <!-- Video Preview Canvas -->\n+ <div class=\"w-[640px] h-[360px] bg-[#1a1a1a] rounded-lg border border-[#3a3a3a] flex items-center justify-center overflow-hidden\">\n+ <canvas #previewCanvas\n+ [width]=\"PREVIEW_WIDTH\"\n+ [height]=\"PREVIEW_HEIGHT\"\n+ class=\"w-full h-full\">\n+ </canvas>\n </div>\n \n <!-- Playback Controls -->\ndiff --git a/video-timeline/src/app/components/timeline/timeline.component.ts b/video-timeline/src/app/components/timeline/timeline.component.ts\nindex e55d3b9..0ce4255 100644\n--- a/video-timeline/src/app/components/timeline/timeline.component.ts\n+++ b/video-timeline/src/app/components/timeline/timeline.component.ts\n@@ -1,10 +1,11 @@\n-import { Component, signal, computed, ViewChild, ElementRef } from '@angular/core';\n+import { Component, signal, computed, ViewChild, ElementRef, AfterViewInit, OnDestroy, effect } from '@angular/core';\n import { CommonModule } from '@angular/common';\n import { MediaType, MediaItem, Track, TimelineState } from '../../models/timeline.models';\n import { MediaLibraryComponent, MediaLibraryItem } from '../media-library/media-library.component';\n import { Media***********onent } from '../media-toolbar/media-toolbar.component';\n import { Notif************onent } from '../notifications/notifications.component';\n import { Timel*************rvice } from '../../services/timeline-drag-drop.service';\n+import { PlaybackService } from '../../services/playback.service';\n \n @Component({\n selector: 'app-timeline',\n@@ -13,7 +14,7 @@ import { Timel*************rvice } from '../../services/timeline-drag-drop.servi\n templateUrl: './timeline.component.html',\n styleUrl: './timeline.component.css'\n })\n-export class TimelineComponent {\n+export class TimelineComponent implements AfterViewInit, OnDestroy {\n // Zoom levels: pixels per second\n private readonly MIN_ZOOM = 10;\n private readonly MAX_ZOOM = 200;\n@@ -22,9 +23,14 @@ export class TimelineComponent {\n private readonly SNAP_PROXIMITY_MS = 500; // Snap to item if playhead is within 500ms\n private readonly MIN_ITEM_DURATION = 100; // Minimum item duration in milliseconds\n \n+ // Canvas dimensions for preview\n+ readonly PREVIEW_WIDTH = 640;\n+ readonly PREVIEW_HEIGHT = 360;\n+\n // View references\n @ViewChild('timelineRuler') timelineRuler?: ElementRef<HTMLElement>;\n @ViewChild('notifications') notificationsComponent?: NotificationsComponent;\n+ @ViewChild('previewCanvas') previewCanvas?: ElementRef<HTMLCanvasElement>;\n \n // Timeline state\n readonly state = signal<TimelineState>({\n@@ -107,7 +113,60 @@ export class TimelineComponent {\n return this.clipboardItem() !== null;\n });\n \n- constructor(private dragDropService: TimelineDragDropService) {\n+ // Render loop ID for cleanup\n+ private renderLoopId: number | null = null;\n+\n+ constructor(\n+ private dragDropService: TimelineDragDropService,\n+ public playbackService: PlaybackService\n+ ) {\n+ // Effect to sync playhead position from PlaybackService during playback\n+ effect(() => {\n+ if (this.playbackService.isPlaying()) {\n+ const position = this.playbackService.playheadPosition();\n+ this.state.update(s => ({\n+ ...s,\n+ playheadPosition: position\n+ }));\n+ }\n+ });\n+ }\n+\n+ ngAfterViewInit(): void {\n+ // Initialize canvas for preview rendering\n+ if (this.previewCanvas) {\n+ this.playbackService.setCanvas(this.previewCanvas.nativeElement);\n+ }\n+\n+ // Start continuous render loop for preview (renders current frame even when paused)\n+ this.startRenderLoop();\n+ }\n+\n+ ngOnDestroy(): void {\n+ // Clean up render loop\n+ if (this.renderLoopId !== null) {\n+ cancelAnimationFrame(this.renderLoopId);\n+ this.renderLoopId = null;\n+ }\n+\n+ // Stop playback\n+ this.playbackService.stop();\n+ }\n+\n+ /**\n+ * Continuous render loop for preview canvas.\n+ * Keeps rendering even when paused so seeking updates the preview.\n+ */\n+ private startRenderLoop(): void {\n+ const render = () => {\n+ // Only render if we have active media and are not playing\n+ // (PlaybackService handles rendering during playback)\n+ if (!this.playbackService.isPlaying()) {\n+ this.playbackService.renderCurrentFrame();\n+ }\n+ this.renderLoopId = requestAnimationFrame(render);\n+ };\n+ this.renderLoopId = requestAnimationFrame(render);\n }", | |
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| "stdout": "diff --git a/CLAUDE.md b/CLAUDE.md\nindex a030cd1..e65c0b7 100644\n--- a/CLAUDE.md\n+++ b/CLAUDE.md\n@@ -16,4 +16,16 @@ Original repository (upstream): andchir/video-timeline\n \n Proceed.\n \n-Run timestamp: 2025-11-06T11:14:55.547Z\n\\ No newline at end of file\n+Run timestamp: 2025-11-06T11:14:55.547Z\n+\n+---\n+\n+Issue to solve: https://github.com/andchir/video-timeline/issues/112\n+Your prepared branch: issue-112-ffe66abe5816\n+Your prepared working directory: /tmp/gh-issue-solver-1764930855025\n+Your forked repository: konard/andchir-video-timeline\n+Original repository (upstream): andchir/video-timeline\n+\n+Proceed.\n+\n+Run timestamp: 2025-12-05T10:34:33.165Z\n\\ No newline at end of file\ndiff --git a/video-timeline/src/app/components/timeline/timeline.component.html b/video-timeline/src/app/components/timeline/timeline.component.html\nindex 63e9400..746395a 100644\n--- a/video-timeline/src/app/components/timeline/timeline.component.html\n+++ b/video-timeline/src/app/components/timeline/timeline.component.html\n@@ -14,12 +14,13 @@ <h2 class=\"text-lg font-semibold m-0\">VideoEditor</h2>\n <!-- Video Preview Area -->\n <div class=\"flex justify-center items-center py-6 bg-[#252525] border-b border-[#3a3a3a]\">\n <div class=\"flex flex-col items-center gap-3\">\n- <!-- Video Preview Placeholder -->\n- <div class=\"w-[640px] h-[360px] bg-[#1a1a1a] rounded-lg border border-[#3a3a3a] flex items-center justify-center\">\n- <div class=\"flex flex-col items-center gap-2 text-gray-400\">\n- <i class=\"bi bi-film text-6xl\"></i>\n- <span class=\"text-sm\">Video preview</span>\n- </div>\n+ <!-- Video Preview Canvas -->\n+ <div class=\"w-[640px] h-[360px] bg-[#1a1a1a] rounded-lg border border-[#3a3a3a] flex items-center justify-center overflow-hidden\">\n+ <canvas #previewCanvas\n+ [width]=\"PREVIEW_WIDTH\"\n+ [height]=\"PREVIEW_HEIGHT\"\n+ class=\"w-full h-full\">\n+ </canvas>\n </div>\n \n <!-- Playback Controls -->\ndiff --git a/video-timeline/src/app/components/timeline/timeline.component.ts b/video-timeline/src/app/components/timeline/timeline.component.ts\nindex e55d3b9..0ce4255 100644\n--- a/video-timeline/src/app/components/timeline/timeline.component.ts\n+++ b/video-timeline/src/app/components/timeline/timeline.component.ts\n@@ -1,10 +1,11 @@\n-import { Component, signal, computed, ViewChild, ElementRef } from '@angular/core';\n+import { Component, signal, computed, ViewChild, ElementRef, AfterViewInit, OnDestroy, effect } from '@angular/core';\n import { CommonModule } from '@angular/common';\n import { MediaType, MediaItem, Track, TimelineState } from '../../models/timeline.models';\n import { MediaLibraryComponent, MediaLibraryItem } from '../media-library/media-library.component';\n import { Media***********onent } from '../media-toolbar/media-toolbar.component';\n import { Notif************onent } from '../notifications/notifications.component';\n import { Timel*************rvice } from '../../services/timeline-drag-drop.service';\n+import { PlaybackService } from '../../services/playback.service';\n \n @Component({\n selector: 'app-timeline',\n@@ -13,7 +14,7 @@ import { Timel*************rvice } from '../../services/timeline-drag-drop.servi\n templateUrl: './timeline.component.html',\n styleUrl: './timeline.component.css'\n })\n-export class TimelineComponent {\n+export class TimelineComponent implements AfterViewInit, OnDestroy {\n // Zoom levels: pixels per second\n private readonly MIN_ZOOM = 10;\n private readonly MAX_ZOOM = 200;\n@@ -22,9 +23,14 @@ export class TimelineComponent {\n private readonly SNAP_PROXIMITY_MS = 500; // Snap to item if playhead is within 500ms\n private readonly MIN_ITEM_DURATION = 100; // Minimum item duration in milliseconds\n \n+ // Canvas dimensions for preview\n+ readonly PREVIEW_WIDTH = 640;\n+ readonly PREVIEW_HEIGHT = 360;\n+\n // View references\n @ViewChild('timelineRuler') timelineRuler?: ElementRef<HTMLElement>;\n @ViewChild('notifications') notificationsComponent?: NotificationsComponent;\n+ @ViewChild('previewCanvas') previewCanvas?: ElementRef<HTMLCanvasElement>;\n \n // Timeline state\n readonly state = signal<TimelineState>({\n@@ -107,7 +113,60 @@ export class TimelineComponent {\n return this.clipboardItem() !== null;\n });\n \n- constructor(private dragDropService: TimelineDragDropService) {\n+ // Render loop ID for cleanup\n+ private renderLoopId: number | null = null;\n+\n+ constructor(\n+ private dragDropService: TimelineDragDropService,\n+ public playbackService: PlaybackService\n+ ) {\n+ // Effect to sync playhead position from PlaybackService during playback\n+ effect(() => {\n+ if (this.playbackService.isPlaying()) {\n+ const position = this.playbackService.playheadPosition();\n+ this.state.update(s => ({\n+ ...s,\n+ playheadPosition: position\n+ }));\n+ }\n+ });\n+ }\n+\n+ ngAfterViewInit(): void {\n+ // Initialize canvas for preview rendering\n+ if (this.previewCanvas) {\n+ this.playbackService.setCanvas(this.previewCanvas.nativeElement);\n+ }\n+\n+ // Start continuous render loop for preview (renders current frame even when paused)\n+ this.startRenderLoop();\n+ }\n+\n+ ngOnDestroy(): void {\n+ // Clean up render loop\n+ if (this.renderLoopId !== null) {\n+ cancelAnimationFrame(this.renderLoopId);\n+ this.renderLoopId = null;\n+ }\n+\n+ // Stop playback\n+ this.playbackService.stop();\n+ }\n+\n+ /**\n+ * Continuous render loop for preview canvas.\n+ * Keeps rendering even when paused so seeking updates the preview.\n+ */\n+ private startRenderLoop(): void {\n+ const render = () => {\n+ // Only render if we have active media and are not playing\n+ // (PlaybackService handles rendering during playback)\n+ if (!this.playbackService.isPlaying()) {\n+ this.playbackService.renderCurrentFrame();\n+ }\n+ this.renderLoopId = requestAnimationFrame(render);\n+ };\n+ this.renderLoopId = requestAnimationFrame(render);\n }", | |
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| "content": "title:\tРеализовать реальное воспроизведение медиа\nstate:\tOPEN\nauthor:\tkonard\nlabels:\t\nassignees:\t\nreviewers:\t\nprojects:\t\nmilestone:\t\nnumber:\t113\nurl:\thttps://github.com/andchir/video-timeline/pull/113\nadditions:\t531\ndeletions:\t15\nauto-merge:\tdisabled\n--\n## 🎬 Реализация реального воспроизведения медиа\n\nЭтот PR реализует реальное воспроизведение медиа на таймлайне.\n\n### 📋 Ссылка на Issue\nFixes andchir/video-timeline#112\n\n### ✨ Что реализовано\n\n1. **PlaybackService** - новый сервис для управления воспроизведением:\n - Синхронизация медиа элементов с позицией полосы просмотра\n - Запуск/остановка воспроизведения при нажатии кнопки Play\n - Автоматическое воспроизведение медиа когда полоса просмотра входит в их временной диапазон\n - Поддержка audio и video элементов\n\n2. **Canvas Preview** - отображение видео и изображений:\n - Замена placeholder на Canvas для рендеринга\n - Поддержка слоёв (медиа на нижних треках отображаются первыми)\n - Адаптивное масштабирование с сохранением соотношения сторон\n - Рендеринг в реальном времени при воспроизведении и при перемещении полосы просмотра\n\n3. **Интеграция с таймлайном**:\n - При нажатии Play полоса просмотра движется\n - При перемещении полосы просмотра обновляется превью\n - Кнопки Skip вперёд/назад синхронизированы с сервисом\n\n4. **Поддержка URL медиа**:\n - Добавлено поле `url` в интерфейс `MediaItem`\n - URL передаётся из медиа библиотеки при добавлении элементов\n - URL сохраняется при copy/paste и trim операциях\n\n### 🧪 Тестирование\n\nДля тестирования:\n1. Добавьте медиа из библиотеки на таймлайн\n2. Нажмите кнопку Play - полоса просмотра должна двигаться, медиа воспроизводиться\n3. Переместите полосу просмотра - превью должно обновиться\n4. Добавьте несколько медиа на разные треки - они должны отображаться слоями\n\n---\n*🤖 Generated with [Claude Code](https://claude.com/claude-code)*", | |
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| "stdout": "title:\tРеализовать реальное воспроизведение медиа\nstate:\tOPEN\nauthor:\tkonard\nlabels:\t\nassignees:\t\nreviewers:\t\nprojects:\t\nmilestone:\t\nnumber:\t113\nurl:\thttps://github.com/andchir/video-timeline/pull/113\nadditions:\t531\ndeletions:\t15\nauto-merge:\tdisabled\n--\n## 🎬 Реализация реального воспроизведения медиа\n\nЭтот PR реализует реальное воспроизведение медиа на таймлайне.\n\n### 📋 Ссылка на Issue\nFixes andchir/video-timeline#112\n\n### ✨ Что реализовано\n\n1. **PlaybackService** - новый сервис для управления воспроизведением:\n - Синхронизация медиа элементов с позицией полосы просмотра\n - Запуск/остановка воспроизведения при нажатии кнопки Play\n - Автоматическое воспроизведение медиа когда полоса просмотра входит в их временной диапазон\n - Поддержка audio и video элементов\n\n2. **Canvas Preview** - отображение видео и изображений:\n - Замена placeholder на Canvas для рендеринга\n - Поддержка слоёв (медиа на нижних треках отображаются первыми)\n - Адаптивное масштабирование с сохранением соотношения сторон\n - Рендеринг в реальном времени при воспроизведении и при перемещении полосы просмотра\n\n3. **Интеграция с таймлайном**:\n - При нажатии Play полоса просмотра движется\n - При перемещении полосы просмотра обновляется превью\n - Кнопки Skip вперёд/назад синхронизированы с сервисом\n\n4. **Поддержка URL медиа**:\n - Добавлено поле `url` в интерфейс `MediaItem`\n - URL передаётся из медиа библиотеки при добавлении элементов\n - URL сохраняется при copy/paste и trim операциях\n\n### 🧪 Тестирование\n\nДля тестирования:\n1. Добавьте медиа из библиотеки на таймлайн\n2. Нажмите кнопку Play - полоса просмотра должна двигаться, медиа воспроизводиться\n3. Переместите полосу просмотра - превью должно обновиться\n4. Добавьте несколько медиа на разные треки - они должны отображаться слоями\n\n---\n*🤖 Generated with [Claude Code](https://claude.com/claude-code)*", | |
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