The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/browser/metro/base/content/helperui/ItemPinHelper.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,59 @@
     1.4 +// -*- Mode: js2; tab-width: 2; indent-tabs-mode: nil; js2-basic-offset: 2; js2-skip-preprocessor-directives: t; -*-
     1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.8 +
     1.9 +"use strict";
    1.10 +
    1.11 +function ItemPinHelper(aUnpinnedPrefName) {
    1.12 +  this._prefKey = aUnpinnedPrefName;
    1.13 +}
    1.14 +
    1.15 +// Cache preferences on a static variable shared
    1.16 +// by all instances registered to the same pref key.
    1.17 +ItemPinHelper._prefValue = {};
    1.18 +
    1.19 +ItemPinHelper.prototype = {
    1.20 +  _getPrefValue: function _getPrefValue() {
    1.21 +    if (ItemPinHelper._prefValue[this._prefKey])
    1.22 +      return ItemPinHelper._prefValue[this._prefKey];
    1.23 +
    1.24 +    try {
    1.25 +      // getComplexValue throws if pref never set. Really.
    1.26 +      let prefValue = Services.prefs.getComplexValue(this._prefKey, Ci.nsISupportsString);
    1.27 +      ItemPinHelper._prefValue[this._prefKey] = JSON.parse(prefValue.data);
    1.28 +    } catch(e) {
    1.29 +      ItemPinHelper._prefValue[this._prefKey] = [];
    1.30 +    }
    1.31 +
    1.32 +    return ItemPinHelper._prefValue[this._prefKey];
    1.33 +  },
    1.34 +
    1.35 +  _setPrefValue: function _setPrefValue(aNewValue) {
    1.36 +    let stringified = Cc["@mozilla.org/supports-string;1"].createInstance(Ci.nsISupportsString);
    1.37 +    stringified.data = JSON.stringify(aNewValue);
    1.38 +
    1.39 +    Services.prefs.setComplexValue(this._prefKey, Ci.nsISupportsString, stringified);
    1.40 +    ItemPinHelper._prefValue[this._prefKey] = aNewValue;
    1.41 +  },
    1.42 +
    1.43 +  isPinned: function isPinned(aItemId) {
    1.44 +    // Bookmarks are visible on StartUI (pinned) by default
    1.45 +    return this._getPrefValue().indexOf(aItemId) === -1;
    1.46 +  },
    1.47 +
    1.48 +  setUnpinned: function setPinned(aItemId) {
    1.49 +    let unpinned = this._getPrefValue();
    1.50 +    unpinned.push(aItemId);
    1.51 +    this._setPrefValue(unpinned);
    1.52 +  },
    1.53 +
    1.54 +  setPinned: function unsetPinned(aItemId) {
    1.55 +    let unpinned = this._getPrefValue();
    1.56 +
    1.57 +    let index = unpinned.indexOf(aItemId);
    1.58 +    unpinned.splice(index, 1);
    1.59 +
    1.60 +    this._setPrefValue(unpinned);
    1.61 +  },
    1.62 +}