Index: ext/common.js |
=================================================================== |
new file mode 100644 |
--- /dev/null |
+++ b/ext/common.js |
@@ -0,0 +1,55 @@ |
+/* |
+ * This file is part of Adblock Plus <http://adblockplus.org/>, |
+ * Copyright (C) 2006-2014 Eyeo GmbH |
+ * |
+ * Adblock Plus is free software: you can redistribute it and/or modify |
+ * it under the terms of the GNU General Public License version 3 as |
+ * published by the Free Software Foundation. |
+ * |
+ * Adblock Plus is distributed in the hope that it will be useful, |
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of |
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
+ * GNU General Public License for more details. |
+ * |
+ * You should have received a copy of the GNU General Public License |
+ * along with Adblock Plus. If not, see <http://www.gnu.org/licenses/>. |
+ */ |
+ |
+ |
+(function() |
+{ |
+ window.ext = {}; |
+ |
+ var EventTarget = ext._EventTarget = function(cancelable) |
+ { |
+ this._listeners = []; |
+ this._cancelable = cancelable; |
+ }; |
+ EventTarget.prototype = { |
+ addListener: function(listener) |
+ { |
+ if (this._listeners.indexOf(listener) == -1) |
+ this._listeners.push(listener); |
+ }, |
+ removeListener: function(listener) |
+ { |
+ var idx = this._listeners.indexOf(listener); |
+ if (idx != -1) |
+ this._listeners.splice(idx, 1); |
+ }, |
+ _dispatch: function() |
+ { |
+ var result = null; |
+ |
+ for (var i = 0; i < this._listeners.length; i++) |
+ { |
+ result = this._listeners[i].apply(null, arguments); |
+ |
+ if (this._cancelable && result === false) |
+ break; |
+ } |
+ |
+ return result; |
+ } |
+ }; |
+})(); |