Added Safari Support

chrome/common.js

Index: chrome/common.js
===================================================================
new file mode 100644
--- /dev/null
+++ b/chrome/common.js
@@ -0,0 +1,88 @@
+/*
+ * This file is part of Adblock Plus <http://adblockplus.org/>,
+ * Copyright (C) 2006-2013 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()
+{
+  /* Events */
+
+  WrappedEventTarget = function(target)
+  {
+    this._listeners = [];
+    this._wrappedListeners = [];
+    this._target = target;
+  };
+  WrappedEventTarget.prototype = {
+    _prepareExtraArguments: function()
+    {
+      return [];
+    },
+    addListener: function(listener)
+    {
+      var extraArgs = Array.prototype.slice.call(arguments, 1);
+      extraArgs = this._prepareExtraArguments.apply(this, extraArgs);
+
+      var wrappedListener = this._wrapListener(listener);
+      this._listeners.push(listener);
+      this._wrappedListeners.push(wrappedListener);
+
+      this._target.addListener.apply(this._target, [wrappedListener].concat(extraArgs));
+    },
+    removeListener: function(listener)
+    {
+      var idx = this._listeners.indexOf(listener);
+
+      if (idx != -1) {
+        this._target.removeListener(this._wrappedListeners[idx]);
+
+        this._listeners.splice(idx, 1);
+        this._wrappedListeners.splice(idx, 1);
+      }
+    }
+  };
+
+  var MessageEventTarget = function()
+  {
+    WrappedEventTarget.call(this, chrome.runtime.onMessage);
+  };
+  MessageEventTarget.prototype = {
+    __proto__: WrappedEventTarget.prototype,
+    _wrapListener: function(listener) {
+      return function(message, sender, sendResponse)
+      {
+        listener(message, {tab: sender.tab && new Tab(sender.tab)}, sendResponse);
+      };
+    }
+  };
+
+  /* API */
+
+  ext = {
+    backgroundPage: {
+      sendMessage: function(message, responseCallback)
+      {
+        chrome.runtime.sendMessage(message, responseCallback);
+      },
+      getWindow: function()
+      {
+        return chrome.extension.getBackgroundPage();
+      }
+    },
+    getURL: chrome.extension.getURL,
+    onMessage: new MessageEventTarget(),
+    i18n: chrome.i18n
+  };
+})();