tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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browser-customtitlebar.js (1955B)

      1 /* -*- indent-tabs-mode: nil; js-indent-level: 2 -*-
      2 * This Source Code Form is subject to the terms of the Mozilla Public
      3 * License, v. 2.0. If a copy of the MPL was not distributed with this
      4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      5 
      6 var CustomTitlebar = {
      7  init() {
      8    this._readPref();
      9    Services.prefs.addObserver(this._prefName, this);
     10 
     11    this._initialized = true;
     12    this._update();
     13  },
     14 
     15  allowedBy(condition, allow) {
     16    if (allow) {
     17      if (condition in this._disallowed) {
     18        delete this._disallowed[condition];
     19        this._update();
     20      }
     21    } else if (!(condition in this._disallowed)) {
     22      this._disallowed[condition] = null;
     23      this._update();
     24    }
     25  },
     26 
     27  get systemSupported() {
     28    let isSupported = false;
     29    switch (AppConstants.MOZ_WIDGET_TOOLKIT) {
     30      case "windows":
     31      case "cocoa":
     32        isSupported = true;
     33        break;
     34      case "gtk":
     35        isSupported = window.matchMedia("(-moz-gtk-csd-available)").matches;
     36        break;
     37    }
     38    delete this.systemSupported;
     39    return (this.systemSupported = isSupported);
     40  },
     41 
     42  get enabled() {
     43    return document.documentElement.hasAttribute("customtitlebar");
     44  },
     45 
     46  observe(subject, topic) {
     47    if (topic == "nsPref:changed") {
     48      this._readPref();
     49    }
     50  },
     51 
     52  _initialized: false,
     53  _disallowed: {},
     54  _prefName: "browser.tabs.inTitlebar",
     55 
     56  _readPref() {
     57    let hiddenTitlebar = Services.appinfo.drawInTitlebar;
     58    this.allowedBy("pref", hiddenTitlebar);
     59  },
     60 
     61  _update() {
     62    if (!this._initialized) {
     63      return;
     64    }
     65 
     66    let allowed =
     67      this.systemSupported &&
     68      !window.fullScreen &&
     69      !Object.keys(this._disallowed).length;
     70 
     71    document.documentElement.toggleAttribute("customtitlebar", allowed);
     72 
     73    ToolbarIconColor.inferFromText("customtitlebar", allowed);
     74    TabBarVisibility.update(true);
     75  },
     76 
     77  uninit() {
     78    Services.prefs.removeObserver(this._prefName, this);
     79  },
     80 };