tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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SelectionChangedMenulist.sys.mjs (904B)

      1 /* - This Source Code Form is subject to the terms of the Mozilla Public
      2   - License, v. 2.0. If a copy of the MPL was not distributed with this file,
      3   - You can obtain one at http://mozilla.org/MPL/2.0/. */
      4 
      5 export class SelectionChangedMenulist {
      6  // A menulist wrapper that will open the popup when navigating with the
      7  // keyboard on Windows and trigger the provided handler when the popup
      8  // is hiding. This matches the behaviour of MacOS and Linux more closely.
      9 
     10  constructor(menulist, onCommand) {
     11    let popup = menulist.menupopup;
     12    let lastEvent;
     13 
     14    menulist.addEventListener("command", event => {
     15      lastEvent = event;
     16      if (popup.state != "open" && popup.state != "showing") {
     17        popup.openPopup();
     18      }
     19    });
     20 
     21    popup.addEventListener("popuphiding", () => {
     22      if (lastEvent) {
     23        onCommand(lastEvent);
     24        lastEvent = null;
     25      }
     26    });
     27  }
     28 }