Issue 2595 - Use the core code from adblockpluscore

lib/filterNotifier.js

Index: lib/filterNotifier.js
===================================================================
deleted file mode 100644
--- a/lib/filterNotifier.js
+++ /dev/null
@@ -1,73 +0,0 @@
-/*
- * This file is part of Adblock Plus <https://adblockplus.org/>,
- * Copyright (C) 2006-2016 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/>.
- */
-
-/**
- * @fileOverview This component manages listeners and calls them to distributes
- * messages about filter changes.
- */
-
-/**
- * List of registered listeners
- * @type function[]
- */
-let listeners = [];
-
-/**
- * This class allows registering and triggering listeners for filter events.
- * @class
- */
-let FilterNotifier = exports.FilterNotifier =
-{
-  /**
-   * Adds a listener
-   */
-  addListener: function(/**function(action, item, newValue, oldValue)*/ listener)
-  {
-    if (listeners.indexOf(listener) >= 0)
-      return;
-
-    listeners.push(listener);
-  },
-
-  /**
-   * Removes a listener that was previosly added via addListener
-   */
-  removeListener: function(/**function(action, item, newValue, oldValue)*/ listener)
-  {
-    let index = listeners.indexOf(listener);
-    if (index >= 0)
-      listeners.splice(index, 1);
-  },
-
-  /**
-   * Notifies listeners about an event
-   * @param {String} action event code ("load", "save", "elemhideupdate",
-   *                 "subscription.added", "subscription.removed",
-   *                 "subscription.disabled", "subscription.title",
-   *                 "subscription.lastDownload", "subscription.downloadStatus",
-   *                 "subscription.homepage", "subscription.updated",
-   *                 "filter.added", "filter.removed", "filter.moved",
-   *                 "filter.disabled", "filter.hitCount", "filter.lastHit")
-   * @param {Subscription|Filter} item item that the change applies to
-   */
-  triggerListeners: function(action, item, param1, param2, param3)
-  {
-    let list = listeners.slice();
-    for (let listener of list)
-      listener(action, item, param1, param2, param3);
-  }
-};