Create New Untitled TextMate Document from AppleScript

new-untitled-textmate.jxa.js

#!/usr/bin/env osascript -l JavaScript

const $attr = Ref();
const $windows = Ref();
const $children = Ref();

function run(_) {
  // Get TextMate AXUIElement
  const textmatePid =
    $.NSRunningApplication.runningApplicationsWithBundleIdentifier(
      'com.macromates.TextMate',
    ).firstObject.processIdentifier;
  const textmateApp = $.AXUIElementCreateApplication(textmatePid);

  // Quit if TextMate is not running.
  if (typeof textmatePid != 'number') {
    console.log('Error: TextMate is not currently running.');
    return 1;
  }

  // Get Dock AXUIElement
  const dockPid =
    $.NSRunningApplication.runningApplicationsWithBundleIdentifier(
      'com.apple.dock',
    ).firstObject.processIdentifier;

  const dockApp = $.AXUIElementCreateApplication(dockPid);
  $.AXUIElementCopyAttributeValue(dockApp, 'AXChildren', $children);

  // Locate the TextMate dock tile.
  $.AXUIElementCopyAttributeValue($children[0].js[0], 'AXChildren', $children);
  const textmateTile = $children[0].js.find((child) => {
    $.AXUIElementCopyAttributeValue(child, 'AXTitle', $attr);
    return $attr[0].js == 'TextMate';
  });

  // Open the TextMate dock tile menu -- delay for draw.
  $.AXUIElementPerformAction(textmateTile, 'AXShowMenu');
  delay(0.1);

  // Capture the TextMate initial state for await reference and filtering.
  $.AXUIElementCopyAttributeValue(textmateApp, 'AXWindows', $windows);
  const initialWindowCount = $windows[0].js.length;
  const initialWindowTitles = $windows[0].js.map((window) => {
    $.AXUIElementCopyAttributeValue(window, 'AXTitle', $attr);
    return $attr[0].js;
  });

  // Locate the "New File" menu item in the TextMate dock tile menu.
  $.AXUIElementCopyAttributeValue(textmateTile, 'AXChildren', $children);
  $.AXUIElementCopyAttributeValue($children[0].js[0], 'AXChildren', $children);
  const newFileMenuItem = $children[0].js.find((child) => {
    $.AXUIElementCopyAttributeValue(child, 'AXTitle', $attr);
    return $attr[0].js == 'New File';
  });

  // Click the "New File" menu item and await new window.
  $.AXUIElementPerformAction(newFileMenuItem, 'AXPress');
  if (
    !(() => {
      const timeout = new Date().getTime() + 5000;
      while (true) {
        $.AXUIElementCopyAttributeValue(textmateApp, 'AXWindows', $windows);
        if (
          typeof $windows[0] == 'function' &&
          ($windows[0].js.length ?? 0) > initialWindowCount
        ) {
          return true;
        }
        if (new Date().getTime() > timeout) {
          return false;
        }
        delay(0.1);
      }
    })()
  ) {
    console.log('Error: Did not observe new window before timeout.');
    return 1;
  }

  // Find the window AXUIElement whose title is not in the initial list.
  const newWindow = $windows[0].js.find((child) => {
    $.AXUIElementCopyAttributeValue(child, 'AXTitle', $attr);
    return !initialWindowTitles.includes($attr[0].js);
  });

  // Make the new window frontmost.
  $.AXUIElementPerformAction(newWindow, 'AXRaise');

  return 0;
}

// prettier-ignore
(() => {
ObjC.import('Cocoa'); // yes, it's necessary -- stop telling me it isn't

ObjC.bindFunction('AXUIElementPerformAction', ['int', ['id', 'id']]);
ObjC.bindFunction('AXUIElementCreateApplication', ['id', ['unsigned int']]);
ObjC.bindFunction('AXUIElementCopyAttributeValue',['int', ['id', 'id', 'id*']]);
})();