The Tor Browser / file comparison
comparison: browser/metro/base/content/helperui/ItemPinHelper.js
browser/metro/base/content/helperui/ItemPinHelper.js
- changeset 2
- 7e26c7da4463
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| -1:000000000000 | 0:5d90b79010cd |
|---|---|
| 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/. */ | |
| 5 | |
| 6 "use strict"; | |
| 7 | |
| 8 function ItemPinHelper(aUnpinnedPrefName) { | |
| 9 this._prefKey = aUnpinnedPrefName; | |
| 10 } | |
| 11 | |
| 12 // Cache preferences on a static variable shared | |
| 13 // by all instances registered to the same pref key. | |
| 14 ItemPinHelper._prefValue = {}; | |
| 15 | |
| 16 ItemPinHelper.prototype = { | |
| 17 _getPrefValue: function _getPrefValue() { | |
| 18 if (ItemPinHelper._prefValue[this._prefKey]) | |
| 19 return ItemPinHelper._prefValue[this._prefKey]; | |
| 20 | |
| 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 } | |
| 28 | |
| 29 return ItemPinHelper._prefValue[this._prefKey]; | |
| 30 }, | |
| 31 | |
| 32 _setPrefValue: function _setPrefValue(aNewValue) { | |
| 33 let stringified = Cc["@mozilla.org/supports-string;1"].createInstance(Ci.nsISupportsString); | |
| 34 stringified.data = JSON.stringify(aNewValue); | |
| 35 | |
| 36 Services.prefs.setComplexValue(this._prefKey, Ci.nsISupportsString, stringified); | |
| 37 ItemPinHelper._prefValue[this._prefKey] = aNewValue; | |
| 38 }, | |
| 39 | |
| 40 isPinned: function isPinned(aItemId) { | |
| 41 // Bookmarks are visible on StartUI (pinned) by default | |
| 42 return this._getPrefValue().indexOf(aItemId) === -1; | |
| 43 }, | |
| 44 | |
| 45 setUnpinned: function setPinned(aItemId) { | |
| 46 let unpinned = this._getPrefValue(); | |
| 47 unpinned.push(aItemId); | |
| 48 this._setPrefValue(unpinned); | |
| 49 }, | |
| 50 | |
| 51 setPinned: function unsetPinned(aItemId) { | |
| 52 let unpinned = this._getPrefValue(); | |
| 53 | |
| 54 let index = unpinned.indexOf(aItemId); | |
| 55 unpinned.splice(index, 1); | |
| 56 | |
| 57 this._setPrefValue(unpinned); | |
| 58 }, | |
| 59 } |
