tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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BuiltInThemes.sys.mjs (2074B)

      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
      3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      4 
      5 const lazy = {};
      6 
      7 ChromeUtils.defineESModuleGetters(lazy, {
      8  AddonManager: "resource://gre/modules/AddonManager.sys.mjs",
      9  BuiltInThemeConfig: "resource:///modules/BuiltInThemeConfig.sys.mjs",
     10 });
     11 
     12 const kActiveThemePref = "extensions.activeThemeID";
     13 
     14 class _BuiltInThemes {
     15  /**
     16   * The list of themes to be installed. This is exposed on the class so tests
     17   * can set custom config files.
     18   */
     19  builtInThemeMap = lazy.BuiltInThemeConfig;
     20 
     21  /**
     22   * @param {string} id An addon's id string.
     23   * @returns {string}
     24   *   If `id` refers to a built-in theme, returns a path pointing to the
     25   *   theme's preview image. Null otherwise.
     26   */
     27  previewForBuiltInThemeId(id) {
     28    let theme = this.builtInThemeMap.get(id);
     29    if (theme) {
     30      return `${theme.path}preview.svg`;
     31    }
     32 
     33    return null;
     34  }
     35 
     36  /**
     37   * If the active theme is built-in, this function calls
     38   * AddonManager.maybeInstallBuiltinAddon for that theme.
     39   */
     40  maybeInstallActiveBuiltInTheme() {
     41    const activeThemeID = Services.prefs.getStringPref(
     42      kActiveThemePref,
     43      "default-theme@mozilla.org"
     44    );
     45    let activeBuiltInTheme = this.builtInThemeMap.get(activeThemeID);
     46 
     47    if (activeBuiltInTheme) {
     48      lazy.AddonManager.maybeInstallBuiltinAddon(
     49        activeThemeID,
     50        activeBuiltInTheme.version,
     51        activeBuiltInTheme.path
     52      );
     53    }
     54  }
     55 
     56  /**
     57   * Ensures that all built-in themes are installed and expired themes are
     58   * uninstalled.
     59   */
     60  async ensureBuiltInThemes() {
     61    let installPromises = [];
     62 
     63    for (let [id, themeInfo] of this.builtInThemeMap.entries()) {
     64      installPromises.push(
     65        lazy.AddonManager.maybeInstallBuiltinAddon(
     66          id,
     67          themeInfo.version,
     68          themeInfo.path
     69        )
     70      );
     71    }
     72 
     73    await Promise.all(installPromises);
     74  }
     75 }
     76 
     77 export var BuiltInThemes = new _BuiltInThemes();