Created
January 15, 2020 16:34
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動画サイトの動画をキャプチャして新しいタブに表示するブックマークレット
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| javascript: (() => { | |
| const video = document.querySelector('video'); | |
| if (video) { | |
| var canvas = document.createElement('canvas'); | |
| canvas.width = video.videoWidth; | |
| canvas.height = video.videoHeight; | |
| canvas.getContext('2d').drawImage(video, 0, 0, canvas.width, canvas.height); | |
| canvas.toBlob(function(blob){ | |
| image = URL.createObjectURL(blob); | |
| html = window.open(); | |
| html.document.write( | |
| `<!Doctype html> | |
| <html> | |
| <head> | |
| <title>Capture Image</title> | |
| </head> | |
| <body style="margin: 0px; background: #000000;"> | |
| <img style="display:block; margin: 0px auto; height: 100vh;" src="` + image + `"> | |
| </body> | |
| </html>`); | |
| html.window.stop(); | |
| }, 'image/png', 1); | |
| } else { | |
| alert('動画が見つかりません。'); | |
| } | |
| })(); | |
| void 0; |
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