Toggle sidecar or screen mirroring from Control Center in macOS Ventura

toggle-ventura-sidecar.jxa.js

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

/**
 * -----------------------------------------------------------------------------
 * Activate Sidecar/Screen Mirroring from Control Center
 * -----------------------------------------------------------------------------
 *
 * Created on February 17, 2023 by Stephan Casas
 * Updated on May 18, 2023 by Stephan Casas
 *
 * Options:
 *   - TARGET_DEVICE_NAME
 *     - The name of the sidecar/screen mirroring device to toggle.
 *     - This should be exactly as it's written in screen mirroring menu.
 *     - Include any whitespace characters as given in the menu entry.
 *
 *
 * Notes:
 *   This script was tested on macOS 13 Ventura and may break with future OS
 *   updates.
 */

const TARGET_DEVICE_NAME = 'REPLACE_WITH_YOUR_DEVICE_NAME';

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

function run(_) {
  // Get the current Control Center PID.
  const pid = $.NSRunningApplication.runningApplicationsWithBundleIdentifier(
    'com.apple.controlcenter',
  ).firstObject.processIdentifier;

  // Get the Control Center application.
  const app = $.AXUIElementCreateApplication(pid);

  // Get the Control Center menubar extra children.
  $.AXUIElementCopyAttributeValue(app, 'AXChildren', $children);
  $.AXUIElementCopyAttributeValue($children[0].js[0], 'AXChildren', $children);

  // Locate the Control Center menubar extra (also has Clock, Users, etc.).
  const ccExtra = $children[0].js.find((child) => {
    $.AXUIElementCopyAttributeValue(child, 'AXIdentifier', $attr);
    return $attr[0].js == 'com.apple.menuextra.controlcenter';
  });

  // Open Control Center window and await draw.
  $.AXUIElementPerformAction(ccExtra, 'AXPress');
  if (
    !(() => {
      const timeout = new Date().getTime() + 2000;
      while (true) {
        $.AXUIElementCopyAttributeValue(app, 'AXWindows', $windows);
        if (
          typeof $windows[0] == 'function' &&
          ($windows[0].js.length ?? 0) > 0
        ) {
          return true;
        }
        if (new Date().getTime() > timeout) {
          return false;
        }
        delay(0.1);
      }
    })()
  ) {
    return;
  }

  // Get Control Center window children.
  $.AXUIElementCopyAttributeValue($windows[0].js[0], 'AXChildren', $children);

  // Locate the Control Center modules group.
  const modulesGroup = $children[0].js.find((child) => {
    $.AXUIElementCopyAttributeValue(child, 'AXRole', $attr);
    return $attr[0].js == 'AXGroup';
  });

  // Get the individual modules within the modules group.
  $.AXUIElementCopyAttributeValue(modulesGroup, 'AXChildren', $children);

  // Locate the screen-mirroring module.
  const screenMirroring = $children[0].js.find((child) => {
    $.AXUIElementCopyAttributeValue(child, 'AXIdentifier', $attr);
    return $attr[0].js == 'controlcenter-screen-mirroring';
  });

  // Activate the screen mirroring module and await draw.
  $.AXUIElementPerformAction(
    screenMirroring,
    // Wtf is this action name, Apple??
    'Name:show details\nTarget:0x0\nSelector:(null)',
  );
  if (
    !(() => {
      const timeout = new Date().getTime() + 2000;
      while (true) {
        $.AXUIElementCopyAttributeValue(modulesGroup, 'AXChildren', $children);
        if (
          typeof $children[0] == 'function' &&
          ($children[0].js.length ?? 0) > 0
        ) {
          return true;
        }
        if (new Date().getTime() > timeout) {
          return false;
        }
        delay(0.1);
      }
    })()
  ) {
    return;
  }

  // Get the scroll area containing the device mirroring options.
  const mirroringOptions = $children[0].js.find((child) => {
    $.AXUIElementCopyAttributeValue(child, 'AXRole', $attr);
    return $attr[0].js == 'AXScrollArea';
  });

  // Get all mirroring options.
  $.AXUIElementCopyAttributeValue(mirroringOptions, 'AXChildren', $children);

  // Locate the toggle element for the target mirroring device.
  const toggle = $children[0].js
    .filter((child) => {
      $.AXUIElementCopyAttributeValue(child, 'AXRole', $attr);
      return $attr[0].js == `AXCheckBox`;
    })
    .find((child) => {
      $.AXUIElementCopyAttributeValue(child, 'AXIdentifier', $attr);
      return $attr[0].js == `screen-mirroring-device-${TARGET_DEVICE_NAME}`;
    });

  if (!toggle) {
    console.log(
      'Error: Could not get toggle for target screen-mirroring device.',
    );
    return 1;
  }

  // Press the toggle for the target device.
  $.AXUIElementPerformAction(toggle, 'AXPress');

  // Send ⎋ to dismiss Control Center.
  $.CGEventPost($.kCGHIDEventTap, $.CGEventCreateKeyboardEvent(null, 53, true));
  $.CGEventPost($.kCGHIDEventTap, $.CGEventCreateKeyboardEvent(null, 53, true));

  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*']]);
})();