The Tor Browser: browser/metro/base/content/helperui/ItemPinHelper.js@7e26c7da4463

     1 // -*- Mode: js2; tab-width: 2; indent-tabs-mode: nil; js2-basic-offset: 2; js2-skip-preprocessor-directives: t; -*-

     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/. */

     6 "use strict";

     8 function ItemPinHelper(aUnpinnedPrefName) {

     9   this._prefKey = aUnpinnedPrefName;

    10 }

    12 // Cache preferences on a static variable shared

    13 // by all instances registered to the same pref key.

    14 ItemPinHelper._prefValue = {};

    16 ItemPinHelper.prototype = {

    17   _getPrefValue: function _getPrefValue() {

    18     if (ItemPinHelper._prefValue[this._prefKey])

    19       return ItemPinHelper._prefValue[this._prefKey];

    21     try {

    22       // getComplexValue throws if pref never set. Really.

    23       let prefValue = Services.prefs.getComplexValue(this._prefKey, Ci.nsISupportsString);

    24       ItemPinHelper._prefValue[this._prefKey] = JSON.parse(prefValue.data);

    25     } catch(e) {

    26       ItemPinHelper._prefValue[this._prefKey] = [];

    27     }

    29     return ItemPinHelper._prefValue[this._prefKey];

    30   },

    32   _setPrefValue: function _setPrefValue(aNewValue) {

    33     let stringified = Cc["@mozilla.org/supports-string;1"].createInstance(Ci.nsISupportsString);

    34     stringified.data = JSON.stringify(aNewValue);

    36     Services.prefs.setComplexValue(this._prefKey, Ci.nsISupportsString, stringified);

    37     ItemPinHelper._prefValue[this._prefKey] = aNewValue;

    38   },

    40   isPinned: function isPinned(aItemId) {

    41     // Bookmarks are visible on StartUI (pinned) by default

    42     return this._getPrefValue().indexOf(aItemId) === -1;

    43   },

    45   setUnpinned: function setPinned(aItemId) {

    46     let unpinned = this._getPrefValue();

    47     unpinned.push(aItemId);

    48     this._setPrefValue(unpinned);

    49   },

    51   setPinned: function unsetPinned(aItemId) {

    52     let unpinned = this._getPrefValue();

    54     let index = unpinned.indexOf(aItemId);

    55     unpinned.splice(index, 1);

    57     this._setPrefValue(unpinned);

    58   },

    59 }

The Tor Browser / file revision