forked from mirrors/gecko-dev
		
	
		
			
				
	
	
		
			1906 lines
		
	
	
	
		
			69 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			1906 lines
		
	
	
	
		
			69 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
/*
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# -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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# ***** BEGIN LICENSE BLOCK *****
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# Version: MPL 1.1/GPL 2.0/LGPL 2.1
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#
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# The contents of this file are subject to the Mozilla Public License Version
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# 1.1 (the "License"); you may not use this file except in compliance with
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# the License. You may obtain a copy of the License at
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# http://www.mozilla.org/MPL/
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#
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# Software distributed under the License is distributed on an "AS IS" basis,
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# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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# for the specific language governing rights and limitations under the
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# License.
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#
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# The Original Code is the Download Actions Manager.
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#
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# The Initial Developer of the Original Code is
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# Ben Goodger.
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# Portions created by the Initial Developer are Copyright (C) 2000
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# the Initial Developer. All Rights Reserved.
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#
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# Contributor(s):
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#   Ben Goodger <ben@mozilla.org>
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#   Jeff Walden <jwalden+code@mit.edu>
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#   Asaf Romano <mozilla.mano@sent.com>
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#   Myk Melez <myk@mozilla.org>
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#   Florian Queze <florian@queze.net>
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#   Will Guaraldi <will.guaraldi@pculture.org>
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#
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# Alternatively, the contents of this file may be used under the terms of
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# either the GNU General Public License Version 2 or later (the "GPL"), or
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# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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# in which case the provisions of the GPL or the LGPL are applicable instead
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# of those above. If you wish to allow use of your version of this file only
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# under the terms of either the GPL or the LGPL, and not to allow others to
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# use your version of this file under the terms of the MPL, indicate your
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# decision by deleting the provisions above and replace them with the notice
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# and other provisions required by the GPL or the LGPL. If you do not delete
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# the provisions above, a recipient may use your version of this file under
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# the terms of any one of the MPL, the GPL or the LGPL.
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#
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# ***** END LICENSE BLOCK *****
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 */
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//****************************************************************************//
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// Constants & Enumeration Values
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/*
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#ifndef XP_MACOSX
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*/
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var Cc = Components.classes;
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var Ci = Components.interfaces;
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var Cr = Components.results;
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/*
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#endif
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*/
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const TYPE_MAYBE_FEED = "application/vnd.mozilla.maybe.feed";
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const TYPE_MAYBE_VIDEO_FEED = "application/vnd.mozilla.maybe.video.feed";
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const TYPE_MAYBE_AUDIO_FEED = "application/vnd.mozilla.maybe.audio.feed";
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const PREF_DISABLED_PLUGIN_TYPES = "plugin.disable_full_page_plugin_for_types";
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// Preferences that affect which entries to show in the list.
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const PREF_SHOW_PLUGINS_IN_LIST = "browser.download.show_plugins_in_list";
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const PREF_HIDE_PLUGINS_WITHOUT_EXTENSIONS =
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  "browser.download.hide_plugins_without_extensions";
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/*
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 * Preferences where we store handling information about the feed type.
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 *
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 * browser.feeds.handler
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 * - "bookmarks", "reader" (clarified further using the .default preference),
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 *   or "ask" -- indicates the default handler being used to process feeds;
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 *   "bookmarks" is obsolete; to specify that the handler is bookmarks,
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 *   set browser.feeds.handler.default to "bookmarks";
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 *
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 * browser.feeds.handler.default
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 * - "bookmarks", "client" or "web" -- indicates the chosen feed reader used
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 *   to display feeds, either transiently (i.e., when the "use as default"
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 *   checkbox is unchecked, corresponds to when browser.feeds.handler=="ask")
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 *   or more permanently (i.e., the item displayed in the dropdown in Feeds
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 *   preferences)
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 *
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 * browser.feeds.handler.webservice
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 * - the URL of the currently selected web service used to read feeds
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 *
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 * browser.feeds.handlers.application
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 * - nsILocalFile, stores the current client-side feed reading app if one has
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 *   been chosen
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 */
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const PREF_FEED_SELECTED_APP    = "browser.feeds.handlers.application";
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const PREF_FEED_SELECTED_WEB    = "browser.feeds.handlers.webservice";
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const PREF_FEED_SELECTED_ACTION = "browser.feeds.handler";
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const PREF_FEED_SELECTED_READER = "browser.feeds.handler.default";
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const PREF_VIDEO_FEED_SELECTED_APP    = "browser.videoFeeds.handlers.application";
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const PREF_VIDEO_FEED_SELECTED_WEB    = "browser.videoFeeds.handlers.webservice";
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const PREF_VIDEO_FEED_SELECTED_ACTION = "browser.videoFeeds.handler";
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const PREF_VIDEO_FEED_SELECTED_READER = "browser.videoFeeds.handler.default";
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const PREF_AUDIO_FEED_SELECTED_APP    = "browser.audioFeeds.handlers.application";
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const PREF_AUDIO_FEED_SELECTED_WEB    = "browser.audioFeeds.handlers.webservice";
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const PREF_AUDIO_FEED_SELECTED_ACTION = "browser.audioFeeds.handler";
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const PREF_AUDIO_FEED_SELECTED_READER = "browser.audioFeeds.handler.default";
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// The nsHandlerInfoAction enumeration values in nsIHandlerInfo identify
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// the actions the application can take with content of various types.
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// But since nsIHandlerInfo doesn't support plugins, there's no value
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// identifying the "use plugin" action, so we use this constant instead.
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const kActionUsePlugin = 5;
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/*
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#ifdef MOZ_WIDGET_GTK2
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*/
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const ICON_URL_APP      = "moz-icon://dummy.exe?size=16";
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/*
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#else
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*/
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const ICON_URL_APP      = "chrome://browser/skin/preferences/application.png";
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/*
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#endif
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*/
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// For CSS. Can be one of "ask", "save", "plugin" or "feed". If absent, the icon URL
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// was set by us to a custom handler icon and CSS should not try to override it.
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const APP_ICON_ATTR_NAME = "appHandlerIcon";
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//****************************************************************************//
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// Utilities
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function getDisplayNameForFile(aFile) {
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/*
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#ifdef XP_WIN
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*/
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  if (aFile instanceof Ci.nsILocalFileWin) {
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    try {
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      return aFile.getVersionInfoField("FileDescription"); 
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    }
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    catch(ex) {
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      // fall through to the file name
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    }
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  }
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/*
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#endif
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#ifdef XP_MACOSX
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*/
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  if (aFile instanceof Ci.nsILocalFileMac) {
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    try {
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      return aFile.bundleDisplayName;
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    }
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    catch(ex) {
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      // fall through to the file name
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    }
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  }
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/*
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#endif
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*/
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  return Cc["@mozilla.org/network/io-service;1"].
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         getService(Ci.nsIIOService).
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         newFileURI(aFile).
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         QueryInterface(Ci.nsIURL).
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         fileName;
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}
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function getLocalHandlerApp(aFile) {
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  var localHandlerApp = Cc["@mozilla.org/uriloader/local-handler-app;1"].
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                        createInstance(Ci.nsILocalHandlerApp);
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  localHandlerApp.name = getDisplayNameForFile(aFile);
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  localHandlerApp.executable = aFile;
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  return localHandlerApp;
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}
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/**
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 * An enumeration of items in a JS array.
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 *
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 * FIXME: use ArrayConverter once it lands (bug 380839).
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 * 
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 * @constructor
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 */
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function ArrayEnumerator(aItems) {
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  this._index = 0;
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  this._contents = aItems;
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}
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ArrayEnumerator.prototype = {
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  _index: 0,
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  hasMoreElements: function() {
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    return this._index < this._contents.length;
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  },
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  getNext: function() {
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    return this._contents[this._index++];
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  }
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};
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function isFeedType(t) {
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  return t == TYPE_MAYBE_FEED || t == TYPE_MAYBE_VIDEO_FEED || t == TYPE_MAYBE_AUDIO_FEED;
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}
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//****************************************************************************//
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// HandlerInfoWrapper
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/**
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 * This object wraps nsIHandlerInfo with some additional functionality
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 * the Applications prefpane needs to display and allow modification of
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 * the list of handled types.
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 * 
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 * We create an instance of this wrapper for each entry we might display
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 * in the prefpane, and we compose the instances from various sources,
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 * including navigator.plugins and the handler service.
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 *
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 * We don't implement all the original nsIHandlerInfo functionality,
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 * just the stuff that the prefpane needs.
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 * 
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 * In theory, all of the custom functionality in this wrapper should get
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 * pushed down into nsIHandlerInfo eventually.
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 */
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function HandlerInfoWrapper(aType, aHandlerInfo) {
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  this._type = aType;
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  this.wrappedHandlerInfo = aHandlerInfo;
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}
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HandlerInfoWrapper.prototype = {
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  // The wrapped nsIHandlerInfo object.  In general, this object is private,
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  // but there are a couple cases where callers access it directly for things
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  // we haven't (yet?) implemented, so we make it a public property.
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  wrappedHandlerInfo: null,
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  //**************************************************************************//
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  // Convenience Utils
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  _handlerSvc: Cc["@mozilla.org/uriloader/handler-service;1"].
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               getService(Ci.nsIHandlerService),
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  // Retrieve this as nsIPrefBranch and then immediately QI to nsIPrefBranch2
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  // so both interfaces are available to callers.
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  _prefSvc: Cc["@mozilla.org/preferences-service;1"].
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            getService(Ci.nsIPrefBranch).
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            QueryInterface(Ci.nsIPrefBranch2),
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  _categoryMgr: Cc["@mozilla.org/categorymanager;1"].
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                getService(Ci.nsICategoryManager),
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  element: function(aID) {
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    return document.getElementById(aID);
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  },
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  //**************************************************************************//
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  // nsIHandlerInfo
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  // The MIME type or protocol scheme.
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  _type: null,
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  get type() {
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    return this._type;
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  },
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  get description() {
 | 
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    if (this.wrappedHandlerInfo.description)
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      return this.wrappedHandlerInfo.description;
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    if (this.primaryExtension) {
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      var extension = this.primaryExtension.toUpperCase();
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      return this.element("bundlePreferences").getFormattedString("fileEnding",
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                                                                  [extension]);
 | 
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    }
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 | 
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    return this.type;
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  },
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 | 
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  get preferredApplicationHandler() {
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    return this.wrappedHandlerInfo.preferredApplicationHandler;
 | 
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  },
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 | 
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  set preferredApplicationHandler(aNewValue) {
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    this.wrappedHandlerInfo.preferredApplicationHandler = aNewValue;
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 | 
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    // Make sure the preferred handler is in the set of possible handlers.
 | 
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    if (aNewValue)
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      this.addPossibleApplicationHandler(aNewValue)
 | 
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  },
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 | 
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  get possibleApplicationHandlers() {
 | 
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    return this.wrappedHandlerInfo.possibleApplicationHandlers;
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  },
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 | 
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  addPossibleApplicationHandler: function(aNewHandler) {
 | 
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    var possibleApps = this.possibleApplicationHandlers.enumerate();
 | 
						|
    while (possibleApps.hasMoreElements()) {
 | 
						|
      if (possibleApps.getNext().equals(aNewHandler))
 | 
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        return;
 | 
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    }
 | 
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    this.possibleApplicationHandlers.appendElement(aNewHandler, false);
 | 
						|
  },
 | 
						|
 | 
						|
  removePossibleApplicationHandler: function(aHandler) {
 | 
						|
    var defaultApp = this.preferredApplicationHandler;
 | 
						|
    if (defaultApp && aHandler.equals(defaultApp)) {
 | 
						|
      // If the app we remove was the default app, we must make sure
 | 
						|
      // it won't be used anymore
 | 
						|
      this.alwaysAskBeforeHandling = true;
 | 
						|
      this.preferredApplicationHandler = null;
 | 
						|
    }
 | 
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 | 
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    var handlers = this.possibleApplicationHandlers;
 | 
						|
    for (var i = 0; i < handlers.length; ++i) {
 | 
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      var handler = handlers.queryElementAt(i, Ci.nsIHandlerApp);
 | 
						|
      if (handler.equals(aHandler)) {
 | 
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        handlers.removeElementAt(i);
 | 
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        break;
 | 
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      }
 | 
						|
    }
 | 
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  },
 | 
						|
 | 
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  get hasDefaultHandler() {
 | 
						|
    return this.wrappedHandlerInfo.hasDefaultHandler;
 | 
						|
  },
 | 
						|
 | 
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  get defaultDescription() {
 | 
						|
    return this.wrappedHandlerInfo.defaultDescription;
 | 
						|
  },
 | 
						|
 | 
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  // What to do with content of this type.
 | 
						|
  get preferredAction() {
 | 
						|
    // If we have an enabled plugin, then the action is to use that plugin.
 | 
						|
    if (this.plugin && !this.isDisabledPluginType)
 | 
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      return kActionUsePlugin;
 | 
						|
 | 
						|
    // If the action is to use a helper app, but we don't have a preferred
 | 
						|
    // handler app, then switch to using the system default, if any; otherwise
 | 
						|
    // fall back to saving to disk, which is the default action in nsMIMEInfo.
 | 
						|
    // Note: "save to disk" is an invalid value for protocol info objects,
 | 
						|
    // but the alwaysAskBeforeHandling getter will detect that situation
 | 
						|
    // and always return true in that case to override this invalid value.
 | 
						|
    if (this.wrappedHandlerInfo.preferredAction == Ci.nsIHandlerInfo.useHelperApp &&
 | 
						|
        !gApplicationsPane.isValidHandlerApp(this.preferredApplicationHandler)) {
 | 
						|
      if (this.wrappedHandlerInfo.hasDefaultHandler)
 | 
						|
        return Ci.nsIHandlerInfo.useSystemDefault;
 | 
						|
      else
 | 
						|
        return Ci.nsIHandlerInfo.saveToDisk;
 | 
						|
    }
 | 
						|
 | 
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    return this.wrappedHandlerInfo.preferredAction;
 | 
						|
  },
 | 
						|
 | 
						|
  set preferredAction(aNewValue) {
 | 
						|
    // We don't modify the preferred action if the new action is to use a plugin
 | 
						|
    // because handler info objects don't understand our custom "use plugin"
 | 
						|
    // value.  Also, leaving it untouched means that we can automatically revert
 | 
						|
    // to the old setting if the user ever removes the plugin.
 | 
						|
 | 
						|
    if (aNewValue != kActionUsePlugin)
 | 
						|
      this.wrappedHandlerInfo.preferredAction = aNewValue;
 | 
						|
  },
 | 
						|
 | 
						|
  get alwaysAskBeforeHandling() {
 | 
						|
    // If this type is handled only by a plugin, we can't trust the value
 | 
						|
    // in the handler info object, since it'll be a default based on the absence
 | 
						|
    // of any user configuration, and the default in that case is to always ask,
 | 
						|
    // even though we never ask for content handled by a plugin, so special case
 | 
						|
    // plugin-handled types by returning false here.
 | 
						|
    if (this.plugin && this.handledOnlyByPlugin)
 | 
						|
      return false;
 | 
						|
 | 
						|
    // If this is a protocol type and the preferred action is "save to disk",
 | 
						|
    // which is invalid for such types, then return true here to override that
 | 
						|
    // action.  This could happen when the preferred action is to use a helper
 | 
						|
    // app, but the preferredApplicationHandler is invalid, and there isn't
 | 
						|
    // a default handler, so the preferredAction getter returns save to disk
 | 
						|
    // instead.
 | 
						|
    if (!(this.wrappedHandlerInfo instanceof Ci.nsIMIMEInfo) &&
 | 
						|
        this.preferredAction == Ci.nsIHandlerInfo.saveToDisk)
 | 
						|
      return true;
 | 
						|
 | 
						|
    return this.wrappedHandlerInfo.alwaysAskBeforeHandling;
 | 
						|
  },
 | 
						|
 | 
						|
  set alwaysAskBeforeHandling(aNewValue) {
 | 
						|
    this.wrappedHandlerInfo.alwaysAskBeforeHandling = aNewValue;
 | 
						|
  },
 | 
						|
 | 
						|
 | 
						|
  //**************************************************************************//
 | 
						|
  // nsIMIMEInfo
 | 
						|
 | 
						|
  // The primary file extension associated with this type, if any.
 | 
						|
  //
 | 
						|
  // XXX Plugin objects contain an array of MimeType objects with "suffixes"
 | 
						|
  // properties; if this object has an associated plugin, shouldn't we check
 | 
						|
  // those properties for an extension?
 | 
						|
  get primaryExtension() {
 | 
						|
    try {
 | 
						|
      if (this.wrappedHandlerInfo instanceof Ci.nsIMIMEInfo &&
 | 
						|
          this.wrappedHandlerInfo.primaryExtension)
 | 
						|
        return this.wrappedHandlerInfo.primaryExtension
 | 
						|
    } catch(ex) {}
 | 
						|
 | 
						|
    return null;
 | 
						|
  },
 | 
						|
 | 
						|
 | 
						|
  //**************************************************************************//
 | 
						|
  // Plugin Handling
 | 
						|
 | 
						|
  // A plugin that can handle this type, if any.
 | 
						|
  //
 | 
						|
  // Note: just because we have one doesn't mean it *will* handle the type.
 | 
						|
  // That depends on whether or not the type is in the list of types for which
 | 
						|
  // plugin handling is disabled.
 | 
						|
  plugin: null,
 | 
						|
 | 
						|
  // Whether or not this type is only handled by a plugin or is also handled
 | 
						|
  // by some user-configured action as specified in the handler info object.
 | 
						|
  //
 | 
						|
  // Note: we can't just check if there's a handler info object for this type,
 | 
						|
  // because OS and user configuration is mixed up in the handler info object,
 | 
						|
  // so we always need to retrieve it for the OS info and can't tell whether
 | 
						|
  // it represents only OS-default information or user-configured information.
 | 
						|
  //
 | 
						|
  // FIXME: once handler info records are broken up into OS-provided records
 | 
						|
  // and user-configured records, stop using this boolean flag and simply
 | 
						|
  // check for the presence of a user-configured record to determine whether
 | 
						|
  // or not this type is only handled by a plugin.  Filed as bug 395142.
 | 
						|
  handledOnlyByPlugin: undefined,
 | 
						|
 | 
						|
  get isDisabledPluginType() {
 | 
						|
    return this._getDisabledPluginTypes().indexOf(this.type) != -1;
 | 
						|
  },
 | 
						|
 | 
						|
  _getDisabledPluginTypes: function() {
 | 
						|
    var types = "";
 | 
						|
 | 
						|
    if (this._prefSvc.prefHasUserValue(PREF_DISABLED_PLUGIN_TYPES))
 | 
						|
      types = this._prefSvc.getCharPref(PREF_DISABLED_PLUGIN_TYPES);
 | 
						|
 | 
						|
    // Only split if the string isn't empty so we don't end up with an array
 | 
						|
    // containing a single empty string.
 | 
						|
    if (types != "")
 | 
						|
      return types.split(",");
 | 
						|
 | 
						|
    return [];
 | 
						|
  },
 | 
						|
 | 
						|
  disablePluginType: function() {
 | 
						|
    var disabledPluginTypes = this._getDisabledPluginTypes();
 | 
						|
 | 
						|
    if (disabledPluginTypes.indexOf(this.type) == -1)
 | 
						|
      disabledPluginTypes.push(this.type);
 | 
						|
 | 
						|
    this._prefSvc.setCharPref(PREF_DISABLED_PLUGIN_TYPES,
 | 
						|
                              disabledPluginTypes.join(","));
 | 
						|
 | 
						|
    // Update the category manager so existing browser windows update.
 | 
						|
    this._categoryMgr.deleteCategoryEntry("Gecko-Content-Viewers",
 | 
						|
                                          this.type,
 | 
						|
                                          false);
 | 
						|
  },
 | 
						|
 | 
						|
  enablePluginType: function() {
 | 
						|
    var disabledPluginTypes = this._getDisabledPluginTypes();
 | 
						|
 | 
						|
    var type = this.type;
 | 
						|
    disabledPluginTypes = disabledPluginTypes.filter(function(v) v != type);
 | 
						|
 | 
						|
    this._prefSvc.setCharPref(PREF_DISABLED_PLUGIN_TYPES,
 | 
						|
                              disabledPluginTypes.join(","));
 | 
						|
 | 
						|
    // Update the category manager so existing browser windows update.
 | 
						|
    this._categoryMgr.
 | 
						|
      addCategoryEntry("Gecko-Content-Viewers",
 | 
						|
                       this.type,
 | 
						|
                       "@mozilla.org/content/plugin/document-loader-factory;1",
 | 
						|
                       false,
 | 
						|
                       true);
 | 
						|
  },
 | 
						|
 | 
						|
 | 
						|
  //**************************************************************************//
 | 
						|
  // Storage
 | 
						|
 | 
						|
  store: function() {
 | 
						|
    this._handlerSvc.store(this.wrappedHandlerInfo);
 | 
						|
  },
 | 
						|
 | 
						|
 | 
						|
  //**************************************************************************//
 | 
						|
  // Icons
 | 
						|
 | 
						|
  get smallIcon() {
 | 
						|
    return this._getIcon(16);
 | 
						|
  },
 | 
						|
 | 
						|
  get largeIcon() {
 | 
						|
    return this._getIcon(32);
 | 
						|
  },
 | 
						|
 | 
						|
  _getIcon: function(aSize) {
 | 
						|
    if (this.primaryExtension)
 | 
						|
      return "moz-icon://goat." + this.primaryExtension + "?size=" + aSize;
 | 
						|
 | 
						|
    if (this.wrappedHandlerInfo instanceof Ci.nsIMIMEInfo)
 | 
						|
      return "moz-icon://goat?size=" + aSize + "&contentType=" + this.type;
 | 
						|
 | 
						|
    // FIXME: consider returning some generic icon when we can't get a URL for
 | 
						|
    // one (for example in the case of protocol schemes).  Filed as bug 395141.
 | 
						|
    return null;
 | 
						|
  }
 | 
						|
 | 
						|
};
 | 
						|
 | 
						|
 | 
						|
//****************************************************************************//
 | 
						|
// Feed Handler Info
 | 
						|
 | 
						|
/**
 | 
						|
 * This object implements nsIHandlerInfo for the feed types.  It's a separate
 | 
						|
 * object because we currently store handling information for the feed type
 | 
						|
 * in a set of preferences rather than the nsIHandlerService-managed datastore.
 | 
						|
 * 
 | 
						|
 * This object inherits from HandlerInfoWrapper in order to get functionality
 | 
						|
 * that isn't special to the feed type.
 | 
						|
 * 
 | 
						|
 * XXX Should we inherit from HandlerInfoWrapper?  After all, we override
 | 
						|
 * most of that wrapper's properties and methods, and we have to dance around
 | 
						|
 * the fact that the wrapper expects to have a wrappedHandlerInfo, which we
 | 
						|
 * don't provide.
 | 
						|
 */
 | 
						|
 | 
						|
function FeedHandlerInfo(aMIMEType) {
 | 
						|
  HandlerInfoWrapper.call(this, aMIMEType, null);
 | 
						|
}
 | 
						|
 | 
						|
FeedHandlerInfo.prototype = {
 | 
						|
  __proto__: HandlerInfoWrapper.prototype,
 | 
						|
 | 
						|
  //**************************************************************************//
 | 
						|
  // Convenience Utils
 | 
						|
 | 
						|
  _converterSvc:
 | 
						|
    Cc["@mozilla.org/embeddor.implemented/web-content-handler-registrar;1"].
 | 
						|
    getService(Ci.nsIWebContentConverterService),
 | 
						|
 | 
						|
  _shellSvc:
 | 
						|
#ifdef HAVE_SHELL_SERVICE
 | 
						|
    getShellService(),
 | 
						|
#else
 | 
						|
    null,
 | 
						|
#endif
 | 
						|
 | 
						|
 | 
						|
  //**************************************************************************//
 | 
						|
  // nsIHandlerInfo
 | 
						|
 | 
						|
  get description() {
 | 
						|
    return this.element("bundlePreferences").getString(this._appPrefLabel);
 | 
						|
  },
 | 
						|
 | 
						|
  get preferredApplicationHandler() {
 | 
						|
    switch (this.element(this._prefSelectedReader).value) {
 | 
						|
      case "client":
 | 
						|
        var file = this.element(this._prefSelectedApp).value;
 | 
						|
        if (file)
 | 
						|
          return getLocalHandlerApp(file);
 | 
						|
 | 
						|
        return null;
 | 
						|
 | 
						|
      case "web":
 | 
						|
        var uri = this.element(this._prefSelectedWeb).value;
 | 
						|
        if (!uri)
 | 
						|
          return null;
 | 
						|
        return this._converterSvc.getWebContentHandlerByURI(this.type, uri);
 | 
						|
 | 
						|
      case "bookmarks":
 | 
						|
      default:
 | 
						|
        // When the pref is set to bookmarks, we handle feeds internally,
 | 
						|
        // we don't forward them to a local or web handler app, so there is
 | 
						|
        // no preferred handler.
 | 
						|
        return null;
 | 
						|
    }
 | 
						|
  },
 | 
						|
 | 
						|
  set preferredApplicationHandler(aNewValue) {
 | 
						|
    if (aNewValue instanceof Ci.nsILocalHandlerApp) {
 | 
						|
      this.element(this._prefSelectedApp).value = aNewValue.executable;
 | 
						|
      this.element(this._prefSelectedReader).value = "client";
 | 
						|
    }
 | 
						|
    else if (aNewValue instanceof Ci.nsIWebContentHandlerInfo) {
 | 
						|
      this.element(this._prefSelectedWeb).value = aNewValue.uri;
 | 
						|
      this.element(this._prefSelectedReader).value = "web";
 | 
						|
      // Make the web handler be the new "auto handler" for feeds.
 | 
						|
      // Note: we don't have to unregister the auto handler when the user picks
 | 
						|
      // a non-web handler (local app, Live Bookmarks, etc.) because the service
 | 
						|
      // only uses the "auto handler" when the selected reader is a web handler.
 | 
						|
      // We also don't have to unregister it when the user turns on "always ask"
 | 
						|
      // (i.e. preview in browser), since that also overrides the auto handler.
 | 
						|
      this._converterSvc.setAutoHandler(this.type, aNewValue);
 | 
						|
    }
 | 
						|
  },
 | 
						|
 | 
						|
  _possibleApplicationHandlers: null,
 | 
						|
 | 
						|
  get possibleApplicationHandlers() {
 | 
						|
    if (this._possibleApplicationHandlers)
 | 
						|
      return this._possibleApplicationHandlers;
 | 
						|
 | 
						|
    // A minimal implementation of nsIMutableArray.  It only supports the two
 | 
						|
    // methods its callers invoke, namely appendElement and nsIArray::enumerate.
 | 
						|
    this._possibleApplicationHandlers = {
 | 
						|
      _inner: [],
 | 
						|
      _removed: [],
 | 
						|
 | 
						|
      QueryInterface: function(aIID) {
 | 
						|
        if (aIID.equals(Ci.nsIMutableArray) ||
 | 
						|
            aIID.equals(Ci.nsIArray) ||
 | 
						|
            aIID.equals(Ci.nsISupports))
 | 
						|
          return this;
 | 
						|
 | 
						|
        throw Cr.NS_ERROR_NO_INTERFACE;
 | 
						|
      },
 | 
						|
 | 
						|
      get length() {
 | 
						|
        return this._inner.length;
 | 
						|
      },
 | 
						|
 | 
						|
      enumerate: function() {
 | 
						|
        return new ArrayEnumerator(this._inner);
 | 
						|
      },
 | 
						|
 | 
						|
      appendElement: function(aHandlerApp, aWeak) {
 | 
						|
        this._inner.push(aHandlerApp);
 | 
						|
      },
 | 
						|
 | 
						|
      removeElementAt: function(aIndex) {
 | 
						|
        this._removed.push(this._inner[aIndex]);
 | 
						|
        this._inner.splice(aIndex, 1);
 | 
						|
      },
 | 
						|
 | 
						|
      queryElementAt: function(aIndex, aInterface) {
 | 
						|
        return this._inner[aIndex].QueryInterface(aInterface);
 | 
						|
      }
 | 
						|
    };
 | 
						|
 | 
						|
    // Add the selected local app if it's different from the OS default handler.
 | 
						|
    // Unlike for other types, we can store only one local app at a time for the
 | 
						|
    // feed type, since we store it in a preference that historically stores
 | 
						|
    // only a single path.  But we display all the local apps the user chooses
 | 
						|
    // while the prefpane is open, only dropping the list when the user closes
 | 
						|
    // the prefpane, for maximum usability and consistency with other types.
 | 
						|
    var preferredAppFile = this.element(this._prefSelectedApp).value;
 | 
						|
    if (preferredAppFile) {
 | 
						|
      let preferredApp = getLocalHandlerApp(preferredAppFile);
 | 
						|
      let defaultApp = this._defaultApplicationHandler;
 | 
						|
      if (!defaultApp || !defaultApp.equals(preferredApp))
 | 
						|
        this._possibleApplicationHandlers.appendElement(preferredApp, false);
 | 
						|
    }
 | 
						|
 | 
						|
    // Add the registered web handlers.  There can be any number of these.
 | 
						|
    var webHandlers = this._converterSvc.getContentHandlers(this.type);
 | 
						|
    for each (let webHandler in webHandlers)
 | 
						|
      this._possibleApplicationHandlers.appendElement(webHandler, false);
 | 
						|
 | 
						|
    return this._possibleApplicationHandlers;
 | 
						|
  },
 | 
						|
 | 
						|
  __defaultApplicationHandler: undefined,
 | 
						|
  get _defaultApplicationHandler() {
 | 
						|
    if (typeof this.__defaultApplicationHandler != "undefined")
 | 
						|
      return this.__defaultApplicationHandler;
 | 
						|
 | 
						|
    var defaultFeedReader = null;
 | 
						|
#ifdef HAVE_SHELL_SERVICE
 | 
						|
    try {
 | 
						|
      defaultFeedReader = this._shellSvc.defaultFeedReader;
 | 
						|
    }
 | 
						|
    catch(ex) {
 | 
						|
      // no default reader or _shellSvc is null
 | 
						|
    }
 | 
						|
#endif
 | 
						|
 | 
						|
    if (defaultFeedReader) {
 | 
						|
      let handlerApp = Cc["@mozilla.org/uriloader/local-handler-app;1"].
 | 
						|
                       createInstance(Ci.nsIHandlerApp);
 | 
						|
      handlerApp.name = getDisplayNameForFile(defaultFeedReader);
 | 
						|
      handlerApp.QueryInterface(Ci.nsILocalHandlerApp);
 | 
						|
      handlerApp.executable = defaultFeedReader;
 | 
						|
 | 
						|
      this.__defaultApplicationHandler = handlerApp;
 | 
						|
    }
 | 
						|
    else {
 | 
						|
      this.__defaultApplicationHandler = null;
 | 
						|
    }
 | 
						|
 | 
						|
    return this.__defaultApplicationHandler;
 | 
						|
  },
 | 
						|
 | 
						|
  get hasDefaultHandler() {
 | 
						|
#ifdef HAVE_SHELL_SERVICE
 | 
						|
    try {
 | 
						|
      if (this._shellSvc.defaultFeedReader)
 | 
						|
        return true;
 | 
						|
    }
 | 
						|
    catch(ex) {
 | 
						|
      // no default reader or _shellSvc is null
 | 
						|
    }
 | 
						|
#endif
 | 
						|
 | 
						|
    return false;
 | 
						|
  },
 | 
						|
 | 
						|
  get defaultDescription() {
 | 
						|
    if (this.hasDefaultHandler)
 | 
						|
      return this._defaultApplicationHandler.name;
 | 
						|
 | 
						|
    // Should we instead return null?
 | 
						|
    return "";
 | 
						|
  },
 | 
						|
 | 
						|
  // What to do with content of this type.
 | 
						|
  get preferredAction() {
 | 
						|
    switch (this.element(this._prefSelectedAction).value) {
 | 
						|
 | 
						|
      case "bookmarks":
 | 
						|
        return Ci.nsIHandlerInfo.handleInternally;
 | 
						|
 | 
						|
      case "reader": {
 | 
						|
        let preferredApp = this.preferredApplicationHandler;
 | 
						|
        let defaultApp = this._defaultApplicationHandler;
 | 
						|
 | 
						|
        // If we have a valid preferred app, return useSystemDefault if it's
 | 
						|
        // the default app; otherwise return useHelperApp.
 | 
						|
        if (gApplicationsPane.isValidHandlerApp(preferredApp)) {
 | 
						|
          if (defaultApp && defaultApp.equals(preferredApp))
 | 
						|
            return Ci.nsIHandlerInfo.useSystemDefault;
 | 
						|
 | 
						|
          return Ci.nsIHandlerInfo.useHelperApp;
 | 
						|
        }
 | 
						|
 | 
						|
        // The pref is set to "reader", but we don't have a valid preferred app.
 | 
						|
        // What do we do now?  Not sure this is the best option (perhaps we
 | 
						|
        // should direct the user to the default app, if any), but for now let's
 | 
						|
        // direct the user to live bookmarks.
 | 
						|
        return Ci.nsIHandlerInfo.handleInternally;
 | 
						|
      }
 | 
						|
 | 
						|
      // If the action is "ask", then alwaysAskBeforeHandling will override
 | 
						|
      // the action, so it doesn't matter what we say it is, it just has to be
 | 
						|
      // something that doesn't cause the controller to hide the type.
 | 
						|
      case "ask":
 | 
						|
      default:
 | 
						|
        return Ci.nsIHandlerInfo.handleInternally;
 | 
						|
    }
 | 
						|
  },
 | 
						|
 | 
						|
  set preferredAction(aNewValue) {
 | 
						|
    switch (aNewValue) {
 | 
						|
 | 
						|
      case Ci.nsIHandlerInfo.handleInternally:
 | 
						|
        this.element(this._prefSelectedReader).value = "bookmarks";
 | 
						|
        break;
 | 
						|
 | 
						|
      case Ci.nsIHandlerInfo.useHelperApp:
 | 
						|
        this.element(this._prefSelectedAction).value = "reader";
 | 
						|
        // The controller has already set preferredApplicationHandler
 | 
						|
        // to the new helper app.
 | 
						|
        break;
 | 
						|
 | 
						|
      case Ci.nsIHandlerInfo.useSystemDefault:
 | 
						|
        this.element(this._prefSelectedAction).value = "reader";
 | 
						|
        this.preferredApplicationHandler = this._defaultApplicationHandler;
 | 
						|
        break;
 | 
						|
    }
 | 
						|
  },
 | 
						|
 | 
						|
  get alwaysAskBeforeHandling() {
 | 
						|
    return this.element(this._prefSelectedAction).value == "ask";
 | 
						|
  },
 | 
						|
 | 
						|
  set alwaysAskBeforeHandling(aNewValue) {
 | 
						|
    if (aNewValue == true)
 | 
						|
      this.element(this._prefSelectedAction).value = "ask";
 | 
						|
    else
 | 
						|
      this.element(this._prefSelectedAction).value = "reader";
 | 
						|
  },
 | 
						|
 | 
						|
  // Whether or not we are currently storing the action selected by the user.
 | 
						|
  // We use this to suppress notification-triggered updates to the list when
 | 
						|
  // we make changes that may spawn such updates, specifically when we change
 | 
						|
  // the action for the feed type, which results in feed preference updates,
 | 
						|
  // which spawn "pref changed" notifications that would otherwise cause us
 | 
						|
  // to rebuild the view unnecessarily.
 | 
						|
  _storingAction: false,
 | 
						|
 | 
						|
 | 
						|
  //**************************************************************************//
 | 
						|
  // nsIMIMEInfo
 | 
						|
 | 
						|
  get primaryExtension() {
 | 
						|
    return "xml";
 | 
						|
  },
 | 
						|
 | 
						|
 | 
						|
  //**************************************************************************//
 | 
						|
  // Storage
 | 
						|
 | 
						|
  // Changes to the preferred action and handler take effect immediately
 | 
						|
  // (we write them out to the preferences right as they happen),
 | 
						|
  // so we when the controller calls store() after modifying the handlers,
 | 
						|
  // the only thing we need to store is the removal of possible handlers
 | 
						|
  // XXX Should we hold off on making the changes until this method gets called?
 | 
						|
  store: function() {
 | 
						|
    for each (let app in this._possibleApplicationHandlers._removed) {
 | 
						|
      if (app instanceof Ci.nsILocalHandlerApp) {
 | 
						|
        let pref = this.element(PREF_FEED_SELECTED_APP);
 | 
						|
        var preferredAppFile = pref.value;
 | 
						|
        if (preferredAppFile) {
 | 
						|
          let preferredApp = getLocalHandlerApp(preferredAppFile);
 | 
						|
          if (app.equals(preferredApp))
 | 
						|
            pref.reset();
 | 
						|
        }
 | 
						|
      }
 | 
						|
      else {
 | 
						|
        app.QueryInterface(Ci.nsIWebContentHandlerInfo);
 | 
						|
        this._converterSvc.removeContentHandler(app.contentType, app.uri);
 | 
						|
      }
 | 
						|
    }
 | 
						|
    this._possibleApplicationHandlers._removed = [];
 | 
						|
  },
 | 
						|
 | 
						|
 | 
						|
  //**************************************************************************//
 | 
						|
  // Icons
 | 
						|
 | 
						|
  get smallIcon() {
 | 
						|
    return this._smallIcon;
 | 
						|
  },
 | 
						|
 | 
						|
  get largeIcon() {
 | 
						|
    return this._largeIcon;
 | 
						|
  }
 | 
						|
 | 
						|
};
 | 
						|
 | 
						|
var feedHandlerInfo = {
 | 
						|
  __proto__: new FeedHandlerInfo(TYPE_MAYBE_FEED),
 | 
						|
  _prefSelectedApp: PREF_FEED_SELECTED_APP, 
 | 
						|
  _prefSelectedWeb: PREF_FEED_SELECTED_WEB, 
 | 
						|
  _prefSelectedAction: PREF_FEED_SELECTED_ACTION, 
 | 
						|
  _prefSelectedReader: PREF_FEED_SELECTED_READER,
 | 
						|
  _smallIcon: "chrome://browser/skin/feeds/feedIcon16.png",
 | 
						|
  _largeIcon: "chrome://browser/skin/feeds/feedIcon.png",
 | 
						|
  _appPrefLabel: "webFeed"
 | 
						|
}
 | 
						|
 | 
						|
var videoFeedHandlerInfo = {
 | 
						|
  __proto__: new FeedHandlerInfo(TYPE_MAYBE_VIDEO_FEED),
 | 
						|
  _prefSelectedApp: PREF_VIDEO_FEED_SELECTED_APP, 
 | 
						|
  _prefSelectedWeb: PREF_VIDEO_FEED_SELECTED_WEB, 
 | 
						|
  _prefSelectedAction: PREF_VIDEO_FEED_SELECTED_ACTION, 
 | 
						|
  _prefSelectedReader: PREF_VIDEO_FEED_SELECTED_READER,
 | 
						|
  _smallIcon: "chrome://browser/skin/feeds/videoFeedIcon16.png",
 | 
						|
  _largeIcon: "chrome://browser/skin/feeds/videoFeedIcon.png",
 | 
						|
  _appPrefLabel: "videoPodcastFeed"
 | 
						|
}
 | 
						|
 | 
						|
var audioFeedHandlerInfo = {
 | 
						|
  __proto__: new FeedHandlerInfo(TYPE_MAYBE_AUDIO_FEED),
 | 
						|
  _prefSelectedApp: PREF_AUDIO_FEED_SELECTED_APP, 
 | 
						|
  _prefSelectedWeb: PREF_AUDIO_FEED_SELECTED_WEB, 
 | 
						|
  _prefSelectedAction: PREF_AUDIO_FEED_SELECTED_ACTION, 
 | 
						|
  _prefSelectedReader: PREF_AUDIO_FEED_SELECTED_READER,
 | 
						|
  _smallIcon: "chrome://browser/skin/feeds/audioFeedIcon16.png",
 | 
						|
  _largeIcon: "chrome://browser/skin/feeds/audioFeedIcon.png",
 | 
						|
  _appPrefLabel: "audioPodcastFeed"
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
//****************************************************************************//
 | 
						|
// Prefpane Controller
 | 
						|
 | 
						|
var gApplicationsPane = {
 | 
						|
  // The set of types the app knows how to handle.  A hash of HandlerInfoWrapper
 | 
						|
  // objects, indexed by type.
 | 
						|
  _handledTypes: {},
 | 
						|
  
 | 
						|
  // The list of types we can show, sorted by the sort column/direction.
 | 
						|
  // An array of HandlerInfoWrapper objects.  We build this list when we first
 | 
						|
  // load the data and then rebuild it when users change a pref that affects
 | 
						|
  // what types we can show or change the sort column/direction.
 | 
						|
  // Note: this isn't necessarily the list of types we *will* show; if the user
 | 
						|
  // provides a filter string, we'll only show the subset of types in this list
 | 
						|
  // that match that string.
 | 
						|
  _visibleTypes: [],
 | 
						|
 | 
						|
  // A count of the number of times each visible type description appears.
 | 
						|
  // We use these counts to determine whether or not to annotate descriptions
 | 
						|
  // with their types to distinguish duplicate descriptions from each other.
 | 
						|
  // A hash of integer counts, indexed by string description.
 | 
						|
  _visibleTypeDescriptionCount: {},
 | 
						|
 | 
						|
 | 
						|
  //**************************************************************************//
 | 
						|
  // Convenience & Performance Shortcuts
 | 
						|
 | 
						|
  // These get defined by init().
 | 
						|
  _brandShortName : null,
 | 
						|
  _prefsBundle    : null,
 | 
						|
  _list           : null,
 | 
						|
  _filter         : null,
 | 
						|
 | 
						|
  // Retrieve this as nsIPrefBranch and then immediately QI to nsIPrefBranch2
 | 
						|
  // so both interfaces are available to callers.
 | 
						|
  _prefSvc      : Cc["@mozilla.org/preferences-service;1"].
 | 
						|
                  getService(Ci.nsIPrefBranch).
 | 
						|
                  QueryInterface(Ci.nsIPrefBranch2),
 | 
						|
 | 
						|
  _mimeSvc      : Cc["@mozilla.org/mime;1"].
 | 
						|
                  getService(Ci.nsIMIMEService),
 | 
						|
 | 
						|
  _helperAppSvc : Cc["@mozilla.org/uriloader/external-helper-app-service;1"].
 | 
						|
                  getService(Ci.nsIExternalHelperAppService),
 | 
						|
 | 
						|
  _handlerSvc   : Cc["@mozilla.org/uriloader/handler-service;1"].
 | 
						|
                  getService(Ci.nsIHandlerService),
 | 
						|
 | 
						|
  _ioSvc        : Cc["@mozilla.org/network/io-service;1"].
 | 
						|
                  getService(Ci.nsIIOService),
 | 
						|
 | 
						|
 | 
						|
  //**************************************************************************//
 | 
						|
  // Initialization & Destruction
 | 
						|
 | 
						|
  init: function() {
 | 
						|
    // Initialize shortcuts to some commonly accessed elements & values.
 | 
						|
    this._brandShortName =
 | 
						|
      document.getElementById("bundleBrand").getString("brandShortName");
 | 
						|
    this._prefsBundle = document.getElementById("bundlePreferences");
 | 
						|
    this._list = document.getElementById("handlersView");
 | 
						|
    this._filter = document.getElementById("filter");
 | 
						|
 | 
						|
    // Observe preferences that influence what we display so we can rebuild
 | 
						|
    // the view when they change.
 | 
						|
    this._prefSvc.addObserver(PREF_SHOW_PLUGINS_IN_LIST, this, false);
 | 
						|
    this._prefSvc.addObserver(PREF_HIDE_PLUGINS_WITHOUT_EXTENSIONS, this, false);
 | 
						|
    this._prefSvc.addObserver(PREF_FEED_SELECTED_APP, this, false);
 | 
						|
    this._prefSvc.addObserver(PREF_FEED_SELECTED_WEB, this, false);
 | 
						|
    this._prefSvc.addObserver(PREF_FEED_SELECTED_ACTION, this, false);
 | 
						|
    this._prefSvc.addObserver(PREF_FEED_SELECTED_READER, this, false);
 | 
						|
 | 
						|
    this._prefSvc.addObserver(PREF_VIDEO_FEED_SELECTED_APP, this, false);
 | 
						|
    this._prefSvc.addObserver(PREF_VIDEO_FEED_SELECTED_WEB, this, false);
 | 
						|
    this._prefSvc.addObserver(PREF_VIDEO_FEED_SELECTED_ACTION, this, false);
 | 
						|
    this._prefSvc.addObserver(PREF_VIDEO_FEED_SELECTED_READER, this, false);
 | 
						|
 | 
						|
    this._prefSvc.addObserver(PREF_AUDIO_FEED_SELECTED_APP, this, false);
 | 
						|
    this._prefSvc.addObserver(PREF_AUDIO_FEED_SELECTED_WEB, this, false);
 | 
						|
    this._prefSvc.addObserver(PREF_AUDIO_FEED_SELECTED_ACTION, this, false);
 | 
						|
    this._prefSvc.addObserver(PREF_AUDIO_FEED_SELECTED_READER, this, false);
 | 
						|
 | 
						|
 | 
						|
    // Listen for window unload so we can remove our preference observers.
 | 
						|
    window.addEventListener("unload", this, false);
 | 
						|
 | 
						|
    // Figure out how we should be sorting the list.  We persist sort settings
 | 
						|
    // across sessions, so we can't assume the default sort column/direction.
 | 
						|
    // XXX should we be using the XUL sort service instead?
 | 
						|
    if (document.getElementById("actionColumn").hasAttribute("sortDirection")) {
 | 
						|
      this._sortColumn = document.getElementById("actionColumn");
 | 
						|
      // The typeColumn element always has a sortDirection attribute,
 | 
						|
      // either because it was persisted or because the default value
 | 
						|
      // from the xul file was used.  If we are sorting on the other
 | 
						|
      // column, we should remove it.
 | 
						|
      document.getElementById("typeColumn").removeAttribute("sortDirection");
 | 
						|
    }
 | 
						|
    else 
 | 
						|
      this._sortColumn = document.getElementById("typeColumn");
 | 
						|
 | 
						|
    // Load the data and build the list of handlers.
 | 
						|
    // By doing this in a timeout, we let the preferences dialog resize itself
 | 
						|
    // to an appropriate size before we add a bunch of items to the list.
 | 
						|
    // Otherwise, if there are many items, and the Applications prefpane
 | 
						|
    // is the one that gets displayed when the user first opens the dialog,
 | 
						|
    // the dialog might stretch too much in an attempt to fit them all in.
 | 
						|
    // XXX Shouldn't we perhaps just set a max-height on the richlistbox?
 | 
						|
    var _delayedPaneLoad = function(self) {
 | 
						|
      self._loadData();
 | 
						|
      self._rebuildVisibleTypes();
 | 
						|
      self._sortVisibleTypes();
 | 
						|
      self._rebuildView();
 | 
						|
 | 
						|
      // Notify observers that the UI is now ready
 | 
						|
      Cc["@mozilla.org/observer-service;1"].getService(Ci.nsIObserverService).
 | 
						|
      notifyObservers(window, "app-handler-pane-loaded", null);
 | 
						|
    }
 | 
						|
    setTimeout(_delayedPaneLoad, 0, this);
 | 
						|
  },
 | 
						|
 | 
						|
  destroy: function() {
 | 
						|
    window.removeEventListener("unload", this, false);
 | 
						|
    this._prefSvc.removeObserver(PREF_SHOW_PLUGINS_IN_LIST, this);
 | 
						|
    this._prefSvc.removeObserver(PREF_HIDE_PLUGINS_WITHOUT_EXTENSIONS, this);
 | 
						|
    this._prefSvc.removeObserver(PREF_FEED_SELECTED_APP, this);
 | 
						|
    this._prefSvc.removeObserver(PREF_FEED_SELECTED_WEB, this);
 | 
						|
    this._prefSvc.removeObserver(PREF_FEED_SELECTED_ACTION, this);
 | 
						|
    this._prefSvc.removeObserver(PREF_FEED_SELECTED_READER, this);
 | 
						|
 | 
						|
    this._prefSvc.removeObserver(PREF_VIDEO_FEED_SELECTED_APP, this);
 | 
						|
    this._prefSvc.removeObserver(PREF_VIDEO_FEED_SELECTED_WEB, this);
 | 
						|
    this._prefSvc.removeObserver(PREF_VIDEO_FEED_SELECTED_ACTION, this);
 | 
						|
    this._prefSvc.removeObserver(PREF_VIDEO_FEED_SELECTED_READER, this);
 | 
						|
 | 
						|
    this._prefSvc.removeObserver(PREF_AUDIO_FEED_SELECTED_APP, this);
 | 
						|
    this._prefSvc.removeObserver(PREF_AUDIO_FEED_SELECTED_WEB, this);
 | 
						|
    this._prefSvc.removeObserver(PREF_AUDIO_FEED_SELECTED_ACTION, this);
 | 
						|
    this._prefSvc.removeObserver(PREF_AUDIO_FEED_SELECTED_READER, this);
 | 
						|
  },
 | 
						|
 | 
						|
 | 
						|
  //**************************************************************************//
 | 
						|
  // nsISupports
 | 
						|
 | 
						|
  QueryInterface: function(aIID) {
 | 
						|
    if (aIID.equals(Ci.nsIObserver) ||
 | 
						|
        aIID.equals(Ci.nsIDOMEventListener ||
 | 
						|
        aIID.equals(Ci.nsISupports)))
 | 
						|
      return this;
 | 
						|
 | 
						|
    throw Cr.NS_ERROR_NO_INTERFACE;
 | 
						|
  },
 | 
						|
 | 
						|
 | 
						|
  //**************************************************************************//
 | 
						|
  // nsIObserver
 | 
						|
 | 
						|
  observe: function (aSubject, aTopic, aData) {
 | 
						|
    // Rebuild the list when there are changes to preferences that influence
 | 
						|
    // whether or not to show certain entries in the list.
 | 
						|
    if (aTopic == "nsPref:changed" && !this._storingAction) {
 | 
						|
      // These two prefs alter the list of visible types, so we have to rebuild
 | 
						|
      // that list when they change.
 | 
						|
      if (aData == PREF_SHOW_PLUGINS_IN_LIST ||
 | 
						|
          aData == PREF_HIDE_PLUGINS_WITHOUT_EXTENSIONS) {
 | 
						|
        this._rebuildVisibleTypes();
 | 
						|
        this._sortVisibleTypes();
 | 
						|
      }
 | 
						|
 | 
						|
      // All the prefs we observe can affect what we display, so we rebuild
 | 
						|
      // the view when any of them changes.
 | 
						|
      this._rebuildView();
 | 
						|
    }
 | 
						|
  },
 | 
						|
 | 
						|
 | 
						|
  //**************************************************************************//
 | 
						|
  // nsIDOMEventListener
 | 
						|
 | 
						|
  handleEvent: function(aEvent) {
 | 
						|
    if (aEvent.type == "unload") {
 | 
						|
      this.destroy();
 | 
						|
    }
 | 
						|
  },
 | 
						|
 | 
						|
 | 
						|
  //**************************************************************************//
 | 
						|
  // Composed Model Construction
 | 
						|
 | 
						|
  _loadData: function() {
 | 
						|
    this._loadFeedHandler();
 | 
						|
    this._loadPluginHandlers();
 | 
						|
    this._loadApplicationHandlers();
 | 
						|
  },
 | 
						|
 | 
						|
  _loadFeedHandler: function() {
 | 
						|
    this._handledTypes[TYPE_MAYBE_FEED] = feedHandlerInfo;
 | 
						|
    feedHandlerInfo.handledOnlyByPlugin = false;
 | 
						|
 | 
						|
    this._handledTypes[TYPE_MAYBE_VIDEO_FEED] = videoFeedHandlerInfo;
 | 
						|
    videoFeedHandlerInfo.handledOnlyByPlugin = false;
 | 
						|
 | 
						|
    this._handledTypes[TYPE_MAYBE_AUDIO_FEED] = audioFeedHandlerInfo;
 | 
						|
    audioFeedHandlerInfo.handledOnlyByPlugin = false;
 | 
						|
  },
 | 
						|
 | 
						|
  /**
 | 
						|
   * Load the set of handlers defined by plugins.
 | 
						|
   *
 | 
						|
   * Note: if there's more than one plugin for a given MIME type, we assume
 | 
						|
   * the last one is the one that the application will use.  That may not be
 | 
						|
   * correct, but it's how we've been doing it for years.
 | 
						|
   *
 | 
						|
   * Perhaps we should instead query navigator.mimeTypes for the set of types
 | 
						|
   * supported by the application and then get the plugin from each MIME type's
 | 
						|
   * enabledPlugin property.  But if there's a plugin for a type, we need
 | 
						|
   * to know about it even if it isn't enabled, since we're going to give
 | 
						|
   * the user an option to enable it.
 | 
						|
   * 
 | 
						|
   * I'll also note that my reading of nsPluginTag::RegisterWithCategoryManager
 | 
						|
   * suggests that enabledPlugin is only determined during registration
 | 
						|
   * and does not get updated when plugin.disable_full_page_plugin_for_types
 | 
						|
   * changes (unless modification of that preference spawns reregistration).
 | 
						|
   * So even if we could use enabledPlugin to get the plugin that would be used,
 | 
						|
   * we'd still need to check the pref ourselves to find out if it's enabled.
 | 
						|
   */
 | 
						|
  _loadPluginHandlers: function() {
 | 
						|
    for (let i = 0; i < navigator.plugins.length; ++i) {
 | 
						|
      let plugin = navigator.plugins[i];
 | 
						|
      for (let j = 0; j < plugin.length; ++j) {
 | 
						|
        let type = plugin[j].type;
 | 
						|
 | 
						|
        let handlerInfoWrapper;
 | 
						|
        if (type in this._handledTypes)
 | 
						|
          handlerInfoWrapper = this._handledTypes[type];
 | 
						|
        else {
 | 
						|
          let wrappedHandlerInfo =
 | 
						|
            this._mimeSvc.getFromTypeAndExtension(type, null);
 | 
						|
          handlerInfoWrapper = new HandlerInfoWrapper(type, wrappedHandlerInfo);
 | 
						|
          handlerInfoWrapper.handledOnlyByPlugin = true;
 | 
						|
          this._handledTypes[type] = handlerInfoWrapper;
 | 
						|
        }
 | 
						|
 | 
						|
        handlerInfoWrapper.plugin = plugin;
 | 
						|
      }
 | 
						|
    }
 | 
						|
  },
 | 
						|
 | 
						|
  /**
 | 
						|
   * Load the set of handlers defined by the application datastore.
 | 
						|
   */
 | 
						|
  _loadApplicationHandlers: function() {
 | 
						|
    var wrappedHandlerInfos = this._handlerSvc.enumerate();
 | 
						|
    while (wrappedHandlerInfos.hasMoreElements()) {
 | 
						|
      let wrappedHandlerInfo =
 | 
						|
        wrappedHandlerInfos.getNext().QueryInterface(Ci.nsIHandlerInfo);
 | 
						|
      let type = wrappedHandlerInfo.type;
 | 
						|
 | 
						|
      let handlerInfoWrapper;
 | 
						|
      if (type in this._handledTypes)
 | 
						|
        handlerInfoWrapper = this._handledTypes[type];
 | 
						|
      else {
 | 
						|
        handlerInfoWrapper = new HandlerInfoWrapper(type, wrappedHandlerInfo);
 | 
						|
        this._handledTypes[type] = handlerInfoWrapper;
 | 
						|
      }
 | 
						|
 | 
						|
      handlerInfoWrapper.handledOnlyByPlugin = false;
 | 
						|
    }
 | 
						|
  },
 | 
						|
 | 
						|
 | 
						|
  //**************************************************************************//
 | 
						|
  // View Construction
 | 
						|
 | 
						|
  _rebuildVisibleTypes: function() {
 | 
						|
    // Reset the list of visible types and the visible type description counts.
 | 
						|
    this._visibleTypes = [];
 | 
						|
    this._visibleTypeDescriptionCount = {};
 | 
						|
 | 
						|
    // Get the preferences that help determine what types to show.
 | 
						|
    var showPlugins = this._prefSvc.getBoolPref(PREF_SHOW_PLUGINS_IN_LIST);
 | 
						|
    var hidePluginsWithoutExtensions =
 | 
						|
      this._prefSvc.getBoolPref(PREF_HIDE_PLUGINS_WITHOUT_EXTENSIONS);
 | 
						|
 | 
						|
    for (let type in this._handledTypes) {
 | 
						|
      let handlerInfo = this._handledTypes[type];
 | 
						|
 | 
						|
      // Hide plugins without associated extensions if so prefed so we don't
 | 
						|
      // show a whole bunch of obscure types handled by plugins on Mac.
 | 
						|
      // Note: though protocol types don't have extensions, we still show them;
 | 
						|
      // the pref is only meant to be applied to MIME types, since plugins are
 | 
						|
      // only associated with MIME types.
 | 
						|
      // FIXME: should we also check the "suffixes" property of the plugin?
 | 
						|
      // Filed as bug 395135.
 | 
						|
      if (hidePluginsWithoutExtensions && handlerInfo.handledOnlyByPlugin &&
 | 
						|
          handlerInfo.wrappedHandlerInfo instanceof Ci.nsIMIMEInfo &&
 | 
						|
          !handlerInfo.primaryExtension)
 | 
						|
        continue;
 | 
						|
 | 
						|
      // Hide types handled only by plugins if so prefed.
 | 
						|
      if (handlerInfo.handledOnlyByPlugin && !showPlugins)
 | 
						|
        continue;
 | 
						|
 | 
						|
      // We couldn't find any reason to exclude the type, so include it.
 | 
						|
      this._visibleTypes.push(handlerInfo);
 | 
						|
 | 
						|
      if (handlerInfo.description in this._visibleTypeDescriptionCount)
 | 
						|
        this._visibleTypeDescriptionCount[handlerInfo.description]++;
 | 
						|
      else
 | 
						|
        this._visibleTypeDescriptionCount[handlerInfo.description] = 1;
 | 
						|
    }
 | 
						|
  },
 | 
						|
 | 
						|
  _rebuildView: function() {
 | 
						|
    // Clear the list of entries.
 | 
						|
    while (this._list.childNodes.length > 1)
 | 
						|
      this._list.removeChild(this._list.lastChild);
 | 
						|
 | 
						|
    var visibleTypes = this._visibleTypes;
 | 
						|
 | 
						|
    // If the user is filtering the list, then only show matching types.
 | 
						|
    if (this._filter.value)
 | 
						|
      visibleTypes = visibleTypes.filter(this._matchesFilter, this);
 | 
						|
 | 
						|
    for each (let visibleType in visibleTypes) {
 | 
						|
      let item = document.createElement("richlistitem");
 | 
						|
      item.setAttribute("type", visibleType.type);
 | 
						|
      item.setAttribute("typeDescription", this._describeType(visibleType));
 | 
						|
      if (visibleType.smallIcon)
 | 
						|
        item.setAttribute("typeIcon", visibleType.smallIcon);
 | 
						|
      item.setAttribute("actionDescription",
 | 
						|
                        this._describePreferredAction(visibleType));
 | 
						|
 | 
						|
      if (!this._setIconClassForPreferredAction(visibleType, item)) {
 | 
						|
        item.setAttribute("actionIcon",
 | 
						|
                          this._getIconURLForPreferredAction(visibleType));
 | 
						|
      }
 | 
						|
 | 
						|
      this._list.appendChild(item);
 | 
						|
    }
 | 
						|
 | 
						|
    this._selectLastSelectedType();
 | 
						|
  },
 | 
						|
 | 
						|
  _matchesFilter: function(aType) {
 | 
						|
    var filterValue = this._filter.value.toLowerCase();
 | 
						|
    return this._describeType(aType).toLowerCase().indexOf(filterValue) != -1 ||
 | 
						|
           this._describePreferredAction(aType).toLowerCase().indexOf(filterValue) != -1;
 | 
						|
  },
 | 
						|
 | 
						|
  /**
 | 
						|
   * Describe, in a human-readable fashion, the type represented by the given
 | 
						|
   * handler info object.  Normally this is just the description provided by
 | 
						|
   * the info object, but if more than one object presents the same description,
 | 
						|
   * then we annotate the duplicate descriptions with the type itself to help
 | 
						|
   * users distinguish between those types.
 | 
						|
   *
 | 
						|
   * @param aHandlerInfo {nsIHandlerInfo} the type being described
 | 
						|
   * @returns {string} a description of the type
 | 
						|
   */
 | 
						|
  _describeType: function(aHandlerInfo) {
 | 
						|
    if (this._visibleTypeDescriptionCount[aHandlerInfo.description] > 1)
 | 
						|
      return this._prefsBundle.getFormattedString("typeDescriptionWithType",
 | 
						|
                                                  [aHandlerInfo.description,
 | 
						|
                                                   aHandlerInfo.type]);
 | 
						|
 | 
						|
    return aHandlerInfo.description;
 | 
						|
  },
 | 
						|
 | 
						|
  /**
 | 
						|
   * Describe, in a human-readable fashion, the preferred action to take on
 | 
						|
   * the type represented by the given handler info object.
 | 
						|
   *
 | 
						|
   * XXX Should this be part of the HandlerInfoWrapper interface?  It would
 | 
						|
   * violate the separation of model and view, but it might make more sense
 | 
						|
   * nonetheless (f.e. it would make sortTypes easier).
 | 
						|
   *
 | 
						|
   * @param aHandlerInfo {nsIHandlerInfo} the type whose preferred action
 | 
						|
   *                                      is being described
 | 
						|
   * @returns {string} a description of the action
 | 
						|
   */
 | 
						|
  _describePreferredAction: function(aHandlerInfo) {
 | 
						|
    // alwaysAskBeforeHandling overrides the preferred action, so if that flag
 | 
						|
    // is set, then describe that behavior instead.  For most types, this is
 | 
						|
    // the "alwaysAsk" string, but for the feed type we show something special.
 | 
						|
    if (aHandlerInfo.alwaysAskBeforeHandling) {
 | 
						|
      if (isFeedType(aHandlerInfo.type))
 | 
						|
        return this._prefsBundle.getFormattedString("previewInApp",
 | 
						|
                                                    [this._brandShortName]);
 | 
						|
      else
 | 
						|
        return this._prefsBundle.getString("alwaysAsk");
 | 
						|
    }
 | 
						|
 | 
						|
    switch (aHandlerInfo.preferredAction) {
 | 
						|
      case Ci.nsIHandlerInfo.saveToDisk:
 | 
						|
        return this._prefsBundle.getString("saveFile");
 | 
						|
 | 
						|
      case Ci.nsIHandlerInfo.useHelperApp:
 | 
						|
        var preferredApp = aHandlerInfo.preferredApplicationHandler;
 | 
						|
        var name;
 | 
						|
        if (preferredApp instanceof Ci.nsILocalHandlerApp)
 | 
						|
          name = getDisplayNameForFile(preferredApp.executable);
 | 
						|
        else
 | 
						|
          name = preferredApp.name;
 | 
						|
        return this._prefsBundle.getFormattedString("useApp", [name]);
 | 
						|
 | 
						|
      case Ci.nsIHandlerInfo.handleInternally:
 | 
						|
        // For the feed type, handleInternally means live bookmarks.
 | 
						|
        if (isFeedType(aHandlerInfo.type)) 
 | 
						|
          return this._prefsBundle.getFormattedString("addLiveBookmarksInApp",
 | 
						|
                                                      [this._brandShortName]);
 | 
						|
 | 
						|
        // For other types, handleInternally looks like either useHelperApp
 | 
						|
        // or useSystemDefault depending on whether or not there's a preferred
 | 
						|
        // handler app.
 | 
						|
        if (this.isValidHandlerApp(aHandlerInfo.preferredApplicationHandler))
 | 
						|
          return aHandlerInfo.preferredApplicationHandler.name;
 | 
						|
 | 
						|
        return aHandlerInfo.defaultDescription;
 | 
						|
 | 
						|
        // XXX Why don't we say the app will handle the type internally?
 | 
						|
        // Is it because the app can't actually do that?  But if that's true,
 | 
						|
        // then why would a preferredAction ever get set to this value
 | 
						|
        // in the first place?
 | 
						|
 | 
						|
      case Ci.nsIHandlerInfo.useSystemDefault:
 | 
						|
        return this._prefsBundle.getFormattedString("useDefault",
 | 
						|
                                                    [aHandlerInfo.defaultDescription]);
 | 
						|
 | 
						|
      case kActionUsePlugin:
 | 
						|
        return this._prefsBundle.getFormattedString("usePluginIn",
 | 
						|
                                                    [aHandlerInfo.plugin.name,
 | 
						|
                                                     this._brandShortName]);
 | 
						|
    }
 | 
						|
  },
 | 
						|
 | 
						|
  _selectLastSelectedType: function() {
 | 
						|
    // If the list is disabled by the pref.downloads.disable_button.edit_actions
 | 
						|
    // preference being locked, then don't select the type, as that would cause
 | 
						|
    // it to appear selected, with a different background and an actions menu
 | 
						|
    // that makes it seem like you can choose an action for the type.
 | 
						|
    if (this._list.disabled)
 | 
						|
      return;
 | 
						|
 | 
						|
    var lastSelectedType = this._list.getAttribute("lastSelectedType");
 | 
						|
    if (!lastSelectedType)
 | 
						|
      return;
 | 
						|
 | 
						|
    var item = this._list.getElementsByAttribute("type", lastSelectedType)[0];
 | 
						|
    if (!item)
 | 
						|
      return;
 | 
						|
 | 
						|
    this._list.selectedItem = item;
 | 
						|
  },
 | 
						|
 | 
						|
  /**
 | 
						|
   * Whether or not the given handler app is valid.
 | 
						|
   *
 | 
						|
   * @param aHandlerApp {nsIHandlerApp} the handler app in question
 | 
						|
   *
 | 
						|
   * @returns {boolean} whether or not it's valid
 | 
						|
   */
 | 
						|
  isValidHandlerApp: function(aHandlerApp) {
 | 
						|
    if (!aHandlerApp)
 | 
						|
      return false;
 | 
						|
 | 
						|
    if (aHandlerApp instanceof Ci.nsILocalHandlerApp)
 | 
						|
      return this._isValidHandlerExecutable(aHandlerApp.executable);
 | 
						|
 | 
						|
    if (aHandlerApp instanceof Ci.nsIWebHandlerApp)
 | 
						|
      return aHandlerApp.uriTemplate;
 | 
						|
 | 
						|
    if (aHandlerApp instanceof Ci.nsIWebContentHandlerInfo)
 | 
						|
      return aHandlerApp.uri;
 | 
						|
 | 
						|
    return false;
 | 
						|
  },
 | 
						|
 | 
						|
  _isValidHandlerExecutable: function(aExecutable) {
 | 
						|
    return aExecutable &&
 | 
						|
           aExecutable.exists() &&
 | 
						|
           aExecutable.isExecutable() &&
 | 
						|
// XXXben - we need to compare this with the running instance executable
 | 
						|
//          just don't know how to do that via script...
 | 
						|
// XXXmano TBD: can probably add this to nsIShellService
 | 
						|
#ifdef XP_WIN
 | 
						|
#expand    aExecutable.leafName != "__MOZ_APP_NAME__.exe";
 | 
						|
#else
 | 
						|
#ifdef XP_MACOSX
 | 
						|
#expand    aExecutable.leafName != "__MOZ_APP_DISPLAYNAME__.app";
 | 
						|
#else
 | 
						|
#expand    aExecutable.leafName != "__MOZ_APP_NAME__-bin";
 | 
						|
#endif
 | 
						|
#endif
 | 
						|
  },
 | 
						|
 | 
						|
  /**
 | 
						|
   * Rebuild the actions menu for the selected entry.  Gets called by
 | 
						|
   * the richlistitem constructor when an entry in the list gets selected.
 | 
						|
   */
 | 
						|
  rebuildActionsMenu: function() {
 | 
						|
    var typeItem = this._list.selectedItem;
 | 
						|
    var handlerInfo = this._handledTypes[typeItem.type];
 | 
						|
    var menu =
 | 
						|
      document.getAnonymousElementByAttribute(typeItem, "class", "actionsMenu");
 | 
						|
    var menuPopup = menu.menupopup;
 | 
						|
 | 
						|
    // Clear out existing items.
 | 
						|
    while (menuPopup.hasChildNodes())
 | 
						|
      menuPopup.removeChild(menuPopup.lastChild);
 | 
						|
 | 
						|
    {
 | 
						|
      var askMenuItem = document.createElement("menuitem");
 | 
						|
      askMenuItem.setAttribute("alwaysAsk", "true");
 | 
						|
      let label;
 | 
						|
      if (isFeedType(handlerInfo.type))
 | 
						|
        label = this._prefsBundle.getFormattedString("previewInApp",
 | 
						|
                                                     [this._brandShortName]);
 | 
						|
      else
 | 
						|
        label = this._prefsBundle.getString("alwaysAsk");
 | 
						|
      askMenuItem.setAttribute("label", label);
 | 
						|
      askMenuItem.setAttribute("tooltiptext", label);
 | 
						|
      askMenuItem.setAttribute(APP_ICON_ATTR_NAME, "ask");
 | 
						|
      menuPopup.appendChild(askMenuItem);
 | 
						|
    }
 | 
						|
 | 
						|
    // Create a menu item for saving to disk.
 | 
						|
    // Note: this option isn't available to protocol types, since we don't know
 | 
						|
    // what it means to save a URL having a certain scheme to disk, nor is it
 | 
						|
    // available to feeds, since the feed code doesn't implement the capability.
 | 
						|
    if ((handlerInfo.wrappedHandlerInfo instanceof Ci.nsIMIMEInfo) &&
 | 
						|
        !isFeedType(handlerInfo.type)) {
 | 
						|
      var saveMenuItem = document.createElement("menuitem");
 | 
						|
      saveMenuItem.setAttribute("action", Ci.nsIHandlerInfo.saveToDisk);
 | 
						|
      let label = this._prefsBundle.getString("saveFile");
 | 
						|
      saveMenuItem.setAttribute("label", label);
 | 
						|
      saveMenuItem.setAttribute("tooltiptext", label);
 | 
						|
      saveMenuItem.setAttribute(APP_ICON_ATTR_NAME, "save");
 | 
						|
      menuPopup.appendChild(saveMenuItem);
 | 
						|
    }
 | 
						|
 | 
						|
    // If this is the feed type, add a Live Bookmarks item.
 | 
						|
    if (isFeedType(handlerInfo.type)) {
 | 
						|
      var internalMenuItem = document.createElement("menuitem");
 | 
						|
      internalMenuItem.setAttribute("action", Ci.nsIHandlerInfo.handleInternally);
 | 
						|
      let label = this._prefsBundle.getFormattedString("addLiveBookmarksInApp",
 | 
						|
                                                       [this._brandShortName]);
 | 
						|
      internalMenuItem.setAttribute("label", label);
 | 
						|
      internalMenuItem.setAttribute("tooltiptext", label);
 | 
						|
      internalMenuItem.setAttribute(APP_ICON_ATTR_NAME, "feed");
 | 
						|
      menuPopup.appendChild(internalMenuItem);
 | 
						|
    }
 | 
						|
 | 
						|
    // Add a separator to distinguish these items from the helper app items
 | 
						|
    // that follow them.
 | 
						|
    let menuItem = document.createElement("menuseparator");
 | 
						|
    menuPopup.appendChild(menuItem);
 | 
						|
 | 
						|
    // Create a menu item for the OS default application, if any.
 | 
						|
    if (handlerInfo.hasDefaultHandler) {
 | 
						|
      var defaultMenuItem = document.createElement("menuitem");
 | 
						|
      defaultMenuItem.setAttribute("action", Ci.nsIHandlerInfo.useSystemDefault);
 | 
						|
      let label = this._prefsBundle.getFormattedString("useDefault",
 | 
						|
                                                       [handlerInfo.defaultDescription]);
 | 
						|
      defaultMenuItem.setAttribute("label", label);
 | 
						|
      defaultMenuItem.setAttribute("tooltiptext", handlerInfo.defaultDescription);
 | 
						|
      defaultMenuItem.setAttribute("image", this._getIconURLForSystemDefault(handlerInfo));
 | 
						|
 | 
						|
      menuPopup.appendChild(defaultMenuItem);
 | 
						|
    }
 | 
						|
 | 
						|
    // Create menu items for possible handlers.
 | 
						|
    let preferredApp = handlerInfo.preferredApplicationHandler;
 | 
						|
    let possibleApps = handlerInfo.possibleApplicationHandlers.enumerate();
 | 
						|
    var possibleAppMenuItems = [];
 | 
						|
    while (possibleApps.hasMoreElements()) {
 | 
						|
      let possibleApp = possibleApps.getNext();
 | 
						|
      if (!this.isValidHandlerApp(possibleApp))
 | 
						|
        continue;
 | 
						|
 | 
						|
      let menuItem = document.createElement("menuitem");
 | 
						|
      menuItem.setAttribute("action", Ci.nsIHandlerInfo.useHelperApp);
 | 
						|
      let label;
 | 
						|
      if (possibleApp instanceof Ci.nsILocalHandlerApp)
 | 
						|
        label = getDisplayNameForFile(possibleApp.executable);
 | 
						|
      else
 | 
						|
        label = possibleApp.name;
 | 
						|
      label = this._prefsBundle.getFormattedString("useApp", [label]);
 | 
						|
      menuItem.setAttribute("label", label);
 | 
						|
      menuItem.setAttribute("tooltiptext", label);
 | 
						|
      menuItem.setAttribute("image", this._getIconURLForHandlerApp(possibleApp));
 | 
						|
 | 
						|
      // Attach the handler app object to the menu item so we can use it
 | 
						|
      // to make changes to the datastore when the user selects the item.
 | 
						|
      menuItem.handlerApp = possibleApp;
 | 
						|
 | 
						|
      menuPopup.appendChild(menuItem);
 | 
						|
      possibleAppMenuItems.push(menuItem);
 | 
						|
    }
 | 
						|
 | 
						|
    // Create a menu item for the plugin.
 | 
						|
    if (handlerInfo.plugin) {
 | 
						|
      var pluginMenuItem = document.createElement("menuitem");
 | 
						|
      pluginMenuItem.setAttribute("action", kActionUsePlugin);
 | 
						|
      let label = this._prefsBundle.getFormattedString("usePluginIn",
 | 
						|
                                                       [handlerInfo.plugin.name,
 | 
						|
                                                        this._brandShortName]);
 | 
						|
      pluginMenuItem.setAttribute("label", label);
 | 
						|
      pluginMenuItem.setAttribute("tooltiptext", label);
 | 
						|
      pluginMenuItem.setAttribute(APP_ICON_ATTR_NAME, "plugin");
 | 
						|
      menuPopup.appendChild(pluginMenuItem);
 | 
						|
    }
 | 
						|
 | 
						|
    // Create a menu item for selecting a local application.
 | 
						|
#ifdef XP_WIN
 | 
						|
    // On Windows, selecting an application to open another application
 | 
						|
    // would be meaningless so we special case executables.
 | 
						|
    var executableType = Cc["@mozilla.org/mime;1"].getService(Ci.nsIMIMEService)
 | 
						|
                                                  .getTypeFromExtension("exe");
 | 
						|
    if (handlerInfo.type != executableType)
 | 
						|
#endif
 | 
						|
    {
 | 
						|
      let menuItem = document.createElement("menuitem");
 | 
						|
      menuItem.setAttribute("oncommand", "gApplicationsPane.chooseApp(event)");
 | 
						|
      let label = this._prefsBundle.getString("useOtherApp");
 | 
						|
      menuItem.setAttribute("label", label);
 | 
						|
      menuItem.setAttribute("tooltiptext", label);
 | 
						|
      menuPopup.appendChild(menuItem);
 | 
						|
    }
 | 
						|
 | 
						|
    // Create a menu item for managing applications.
 | 
						|
    if (possibleAppMenuItems.length) {
 | 
						|
      let menuItem = document.createElement("menuseparator");
 | 
						|
      menuPopup.appendChild(menuItem);
 | 
						|
      menuItem = document.createElement("menuitem");
 | 
						|
      menuItem.setAttribute("oncommand", "gApplicationsPane.manageApp(event)");
 | 
						|
      menuItem.setAttribute("label", this._prefsBundle.getString("manageApp"));
 | 
						|
      menuPopup.appendChild(menuItem);
 | 
						|
    }
 | 
						|
 | 
						|
    // Select the item corresponding to the preferred action.  If the always
 | 
						|
    // ask flag is set, it overrides the preferred action.  Otherwise we pick
 | 
						|
    // the item identified by the preferred action (when the preferred action
 | 
						|
    // is to use a helper app, we have to pick the specific helper app item).
 | 
						|
    if (handlerInfo.alwaysAskBeforeHandling)
 | 
						|
      menu.selectedItem = askMenuItem;
 | 
						|
    else switch (handlerInfo.preferredAction) {
 | 
						|
      case Ci.nsIHandlerInfo.handleInternally:
 | 
						|
        menu.selectedItem = internalMenuItem;
 | 
						|
        break;
 | 
						|
      case Ci.nsIHandlerInfo.useSystemDefault:
 | 
						|
        menu.selectedItem = defaultMenuItem;
 | 
						|
        break;
 | 
						|
      case Ci.nsIHandlerInfo.useHelperApp:
 | 
						|
        if (preferredApp)
 | 
						|
          menu.selectedItem = 
 | 
						|
            possibleAppMenuItems.filter(function(v) v.handlerApp.equals(preferredApp))[0];
 | 
						|
        break;
 | 
						|
      case kActionUsePlugin:
 | 
						|
        menu.selectedItem = pluginMenuItem;
 | 
						|
        break;
 | 
						|
      case Ci.nsIHandlerInfo.saveToDisk:
 | 
						|
        menu.selectedItem = saveMenuItem;
 | 
						|
        break;
 | 
						|
    }
 | 
						|
  },
 | 
						|
 | 
						|
 | 
						|
  //**************************************************************************//
 | 
						|
  // Sorting & Filtering
 | 
						|
 | 
						|
  _sortColumn: null,
 | 
						|
 | 
						|
  /**
 | 
						|
   * Sort the list when the user clicks on a column header.
 | 
						|
   */
 | 
						|
  sort: function (event) {
 | 
						|
    var column = event.target;
 | 
						|
 | 
						|
    // If the user clicked on a new sort column, remove the direction indicator
 | 
						|
    // from the old column.
 | 
						|
    if (this._sortColumn && this._sortColumn != column)
 | 
						|
      this._sortColumn.removeAttribute("sortDirection");
 | 
						|
 | 
						|
    this._sortColumn = column;
 | 
						|
 | 
						|
    // Set (or switch) the sort direction indicator.
 | 
						|
    if (column.getAttribute("sortDirection") == "ascending")
 | 
						|
      column.setAttribute("sortDirection", "descending");
 | 
						|
    else
 | 
						|
      column.setAttribute("sortDirection", "ascending");
 | 
						|
 | 
						|
    this._sortVisibleTypes();
 | 
						|
    this._rebuildView();
 | 
						|
  },
 | 
						|
 | 
						|
  /**
 | 
						|
   * Sort the list of visible types by the current sort column/direction.
 | 
						|
   */
 | 
						|
  _sortVisibleTypes: function() {
 | 
						|
    if (!this._sortColumn)
 | 
						|
      return;
 | 
						|
 | 
						|
    var t = this;
 | 
						|
 | 
						|
    function sortByType(a, b) {
 | 
						|
      return t._describeType(a).toLowerCase().
 | 
						|
             localeCompare(t._describeType(b).toLowerCase());
 | 
						|
    }
 | 
						|
 | 
						|
    function sortByAction(a, b) {
 | 
						|
      return t._describePreferredAction(a).toLowerCase().
 | 
						|
             localeCompare(t._describePreferredAction(b).toLowerCase());
 | 
						|
    }
 | 
						|
 | 
						|
    switch (this._sortColumn.getAttribute("value")) {
 | 
						|
      case "type":
 | 
						|
        this._visibleTypes.sort(sortByType);
 | 
						|
        break;
 | 
						|
      case "action":
 | 
						|
        this._visibleTypes.sort(sortByAction);
 | 
						|
        break;
 | 
						|
    }
 | 
						|
 | 
						|
    if (this._sortColumn.getAttribute("sortDirection") == "descending")
 | 
						|
      this._visibleTypes.reverse();
 | 
						|
  },
 | 
						|
 | 
						|
  /**
 | 
						|
   * Filter the list when the user enters a filter term into the filter field.
 | 
						|
   */
 | 
						|
  filter: function() {
 | 
						|
    this._rebuildView();
 | 
						|
  },
 | 
						|
 | 
						|
  focusFilterBox: function() {
 | 
						|
    this._filter.focus();
 | 
						|
    this._filter.select();
 | 
						|
  },
 | 
						|
 | 
						|
 | 
						|
  //**************************************************************************//
 | 
						|
  // Changes
 | 
						|
 | 
						|
  onSelectAction: function(aActionItem) {
 | 
						|
    this._storingAction = true;
 | 
						|
 | 
						|
    try {
 | 
						|
      this._storeAction(aActionItem);
 | 
						|
    }
 | 
						|
    finally {
 | 
						|
      this._storingAction = false;
 | 
						|
    }
 | 
						|
  },
 | 
						|
 | 
						|
  _storeAction: function(aActionItem) {
 | 
						|
    var typeItem = this._list.selectedItem;
 | 
						|
    var handlerInfo = this._handledTypes[typeItem.type];
 | 
						|
 | 
						|
    if (aActionItem.hasAttribute("alwaysAsk")) {
 | 
						|
      handlerInfo.alwaysAskBeforeHandling = true;
 | 
						|
    }
 | 
						|
    else if (aActionItem.hasAttribute("action")) {
 | 
						|
      let action = parseInt(aActionItem.getAttribute("action"));
 | 
						|
 | 
						|
      // Set the plugin state if we're enabling or disabling a plugin.
 | 
						|
      if (action == kActionUsePlugin)
 | 
						|
        handlerInfo.enablePluginType();
 | 
						|
      else if (handlerInfo.plugin && !handlerInfo.isDisabledPluginType)
 | 
						|
        handlerInfo.disablePluginType();
 | 
						|
 | 
						|
      // Set the preferred application handler.
 | 
						|
      // We leave the existing preferred app in the list when we set
 | 
						|
      // the preferred action to something other than useHelperApp so that
 | 
						|
      // legacy datastores that don't have the preferred app in the list
 | 
						|
      // of possible apps still include the preferred app in the list of apps
 | 
						|
      // the user can choose to handle the type.
 | 
						|
      if (action == Ci.nsIHandlerInfo.useHelperApp)
 | 
						|
        handlerInfo.preferredApplicationHandler = aActionItem.handlerApp;
 | 
						|
 | 
						|
      // Set the "always ask" flag.
 | 
						|
      handlerInfo.alwaysAskBeforeHandling = false;
 | 
						|
 | 
						|
      // Set the preferred action.
 | 
						|
      handlerInfo.preferredAction = action;
 | 
						|
    }
 | 
						|
 | 
						|
    handlerInfo.store();
 | 
						|
 | 
						|
    // Make sure the handler info object is flagged to indicate that there is
 | 
						|
    // now some user configuration for the type.
 | 
						|
    handlerInfo.handledOnlyByPlugin = false;
 | 
						|
 | 
						|
    // Update the action label and image to reflect the new preferred action.
 | 
						|
    typeItem.setAttribute("actionDescription",
 | 
						|
                          this._describePreferredAction(handlerInfo));
 | 
						|
    if (!this._setIconClassForPreferredAction(handlerInfo, typeItem)) {
 | 
						|
      typeItem.setAttribute("actionIcon",
 | 
						|
                            this._getIconURLForPreferredAction(handlerInfo));
 | 
						|
    }
 | 
						|
  },
 | 
						|
 | 
						|
  manageApp: function(aEvent) {
 | 
						|
    // Don't let the normal "on select action" handler get this event,
 | 
						|
    // as we handle it specially ourselves.
 | 
						|
    aEvent.stopPropagation();
 | 
						|
 | 
						|
    var typeItem = this._list.selectedItem;
 | 
						|
    var handlerInfo = this._handledTypes[typeItem.type];
 | 
						|
 | 
						|
    document.documentElement.openSubDialog("chrome://browser/content/preferences/applicationManager.xul",
 | 
						|
                                           "", handlerInfo);
 | 
						|
 | 
						|
    // Rebuild the actions menu so that we revert to the previous selection,
 | 
						|
    // or "Always ask" if the previous default application has been removed
 | 
						|
    this.rebuildActionsMenu();
 | 
						|
 | 
						|
    // update the richlistitem too. Will be visible when selecting another row
 | 
						|
    typeItem.setAttribute("actionDescription",
 | 
						|
                          this._describePreferredAction(handlerInfo));
 | 
						|
    if (!this._setIconClassForPreferredAction(handlerInfo, typeItem)) {
 | 
						|
      typeItem.setAttribute("actionIcon",
 | 
						|
                            this._getIconURLForPreferredAction(handlerInfo));
 | 
						|
    }
 | 
						|
  },
 | 
						|
 | 
						|
  chooseApp: function(aEvent) {
 | 
						|
    // Don't let the normal "on select action" handler get this event,
 | 
						|
    // as we handle it specially ourselves.
 | 
						|
    aEvent.stopPropagation();
 | 
						|
 | 
						|
    var handlerApp;
 | 
						|
 | 
						|
#ifdef XP_WIN
 | 
						|
    var params = {};
 | 
						|
    var handlerInfo = this._handledTypes[this._list.selectedItem.type];
 | 
						|
 | 
						|
    if (isFeedType(handlerInfo.type)) {
 | 
						|
      // MIME info will be null, create a temp object.
 | 
						|
      params.mimeInfo = this._mimeSvc.getFromTypeAndExtension(handlerInfo.type, 
 | 
						|
                                                 handlerInfo.primaryExtension);
 | 
						|
    } else {
 | 
						|
      params.mimeInfo = handlerInfo.wrappedHandlerInfo;
 | 
						|
    }
 | 
						|
 | 
						|
    params.title         = this._prefsBundle.getString("fpTitleChooseApp");
 | 
						|
    params.description   = handlerInfo.description;
 | 
						|
    params.filename      = null;
 | 
						|
    params.handlerApp    = null;
 | 
						|
 | 
						|
    window.openDialog("chrome://global/content/appPicker.xul", null,
 | 
						|
                      "chrome,modal,centerscreen,titlebar,dialog=yes",
 | 
						|
                      params);
 | 
						|
 | 
						|
    if (this.isValidHandlerApp(params.handlerApp)) {
 | 
						|
      handlerApp = params.handlerApp;
 | 
						|
 | 
						|
      // Add the app to the type's list of possible handlers.
 | 
						|
      handlerInfo.addPossibleApplicationHandler(handlerApp);
 | 
						|
    }
 | 
						|
#else
 | 
						|
    var fp = Cc["@mozilla.org/filepicker;1"].createInstance(Ci.nsIFilePicker);
 | 
						|
    var winTitle = this._prefsBundle.getString("fpTitleChooseApp");
 | 
						|
    fp.init(window, winTitle, Ci.nsIFilePicker.modeOpen);
 | 
						|
    fp.appendFilters(Ci.nsIFilePicker.filterApps);
 | 
						|
 | 
						|
    // Prompt the user to pick an app.  If they pick one, and it's a valid
 | 
						|
    // selection, then add it to the list of possible handlers.
 | 
						|
    if (fp.show() == Ci.nsIFilePicker.returnOK && fp.file &&
 | 
						|
        this._isValidHandlerExecutable(fp.file)) {
 | 
						|
      handlerApp = Cc["@mozilla.org/uriloader/local-handler-app;1"].
 | 
						|
                   createInstance(Ci.nsILocalHandlerApp);
 | 
						|
      handlerApp.name = getDisplayNameForFile(fp.file);
 | 
						|
      handlerApp.executable = fp.file;
 | 
						|
 | 
						|
      // Add the app to the type's list of possible handlers.
 | 
						|
      let handlerInfo = this._handledTypes[this._list.selectedItem.type];
 | 
						|
      handlerInfo.addPossibleApplicationHandler(handlerApp);
 | 
						|
    }
 | 
						|
#endif
 | 
						|
 | 
						|
    // Rebuild the actions menu whether the user picked an app or canceled.
 | 
						|
    // If they picked an app, we want to add the app to the menu and select it.
 | 
						|
    // If they canceled, we want to go back to their previous selection.
 | 
						|
    this.rebuildActionsMenu();
 | 
						|
 | 
						|
    // If the user picked a new app from the menu, select it.
 | 
						|
    if (handlerApp) {
 | 
						|
      let typeItem = this._list.selectedItem;
 | 
						|
      let actionsMenu =
 | 
						|
        document.getAnonymousElementByAttribute(typeItem, "class", "actionsMenu");
 | 
						|
      let menuItems = actionsMenu.menupopup.childNodes;
 | 
						|
      for (let i = 0; i < menuItems.length; i++) {
 | 
						|
        let menuItem = menuItems[i];
 | 
						|
        if (menuItem.handlerApp && menuItem.handlerApp.equals(handlerApp)) {
 | 
						|
          actionsMenu.selectedIndex = i;
 | 
						|
          this.onSelectAction(menuItem);
 | 
						|
          break;
 | 
						|
        }
 | 
						|
      }
 | 
						|
    }
 | 
						|
  },
 | 
						|
 | 
						|
  // Mark which item in the list was last selected so we can reselect it
 | 
						|
  // when we rebuild the list or when the user returns to the prefpane.
 | 
						|
  onSelectionChanged: function() {
 | 
						|
    if (this._list.selectedItem)
 | 
						|
      this._list.setAttribute("lastSelectedType",
 | 
						|
                              this._list.selectedItem.getAttribute("type"));
 | 
						|
  },
 | 
						|
 | 
						|
  _setIconClassForPreferredAction: function(aHandlerInfo, aElement) {
 | 
						|
    // If this returns true, the attribute that CSS sniffs for was set to something
 | 
						|
    // so you shouldn't manually set an icon URI.
 | 
						|
    // This removes the existing actionIcon attribute if any, even if returning false.
 | 
						|
    aElement.removeAttribute("actionIcon");
 | 
						|
 | 
						|
    if (aHandlerInfo.alwaysAskBeforeHandling) {
 | 
						|
      aElement.setAttribute(APP_ICON_ATTR_NAME, "ask");
 | 
						|
      return true;
 | 
						|
    }
 | 
						|
 | 
						|
    switch (aHandlerInfo.preferredAction) {
 | 
						|
      case Ci.nsIHandlerInfo.saveToDisk:
 | 
						|
        aElement.setAttribute(APP_ICON_ATTR_NAME, "save");
 | 
						|
        return true;
 | 
						|
 | 
						|
      case Ci.nsIHandlerInfo.handleInternally:
 | 
						|
        if (isFeedType(aHandlerInfo.type)) {
 | 
						|
          aElement.setAttribute(APP_ICON_ATTR_NAME, "feed");
 | 
						|
          return true;
 | 
						|
        }
 | 
						|
        break;
 | 
						|
 | 
						|
      case kActionUsePlugin:
 | 
						|
        aElement.setAttribute(APP_ICON_ATTR_NAME, "plugin");
 | 
						|
        return true;
 | 
						|
    }
 | 
						|
    aElement.removeAttribute(APP_ICON_ATTR_NAME);
 | 
						|
    return false;
 | 
						|
  },
 | 
						|
 | 
						|
  _getIconURLForPreferredAction: function(aHandlerInfo) {
 | 
						|
    switch (aHandlerInfo.preferredAction) {
 | 
						|
      case Ci.nsIHandlerInfo.useSystemDefault:
 | 
						|
        return this._getIconURLForSystemDefault(aHandlerInfo);
 | 
						|
 | 
						|
      case Ci.nsIHandlerInfo.useHelperApp:
 | 
						|
        let (preferredApp = aHandlerInfo.preferredApplicationHandler) {
 | 
						|
          if (this.isValidHandlerApp(preferredApp))
 | 
						|
            return this._getIconURLForHandlerApp(preferredApp);
 | 
						|
        }
 | 
						|
        break;
 | 
						|
 | 
						|
      // This should never happen, but if preferredAction is set to some weird
 | 
						|
      // value, then fall back to the generic application icon.
 | 
						|
      default:
 | 
						|
        return ICON_URL_APP;
 | 
						|
    }
 | 
						|
  },
 | 
						|
 | 
						|
  _getIconURLForHandlerApp: function(aHandlerApp) {
 | 
						|
    if (aHandlerApp instanceof Ci.nsILocalHandlerApp)
 | 
						|
      return this._getIconURLForFile(aHandlerApp.executable);
 | 
						|
 | 
						|
    if (aHandlerApp instanceof Ci.nsIWebHandlerApp)
 | 
						|
      return this._getIconURLForWebApp(aHandlerApp.uriTemplate);
 | 
						|
 | 
						|
    if (aHandlerApp instanceof Ci.nsIWebContentHandlerInfo)
 | 
						|
      return this._getIconURLForWebApp(aHandlerApp.uri)
 | 
						|
 | 
						|
    // We know nothing about other kinds of handler apps.
 | 
						|
    return "";
 | 
						|
  },
 | 
						|
 | 
						|
  _getIconURLForFile: function(aFile) {
 | 
						|
    var fph = this._ioSvc.getProtocolHandler("file").
 | 
						|
              QueryInterface(Ci.nsIFileProtocolHandler);
 | 
						|
    var urlSpec = fph.getURLSpecFromFile(aFile);
 | 
						|
 | 
						|
    return "moz-icon://" + urlSpec + "?size=16";
 | 
						|
  },
 | 
						|
 | 
						|
  _getIconURLForWebApp: function(aWebAppURITemplate) {
 | 
						|
    var uri = this._ioSvc.newURI(aWebAppURITemplate, null, null);
 | 
						|
 | 
						|
    // Unfortunately we can't use the favicon service to get the favicon,
 | 
						|
    // because the service looks in the annotations table for a record with
 | 
						|
    // the exact URL we give it, and users won't have such records for URLs
 | 
						|
    // they don't visit, and users won't visit the web app's URL template,
 | 
						|
    // they'll only visit URLs derived from that template (i.e. with %s
 | 
						|
    // in the template replaced by the URL of the content being handled).
 | 
						|
 | 
						|
    if (/^https?/.test(uri.scheme) && this._prefSvc.getBoolPref("browser.chrome.favicons"))
 | 
						|
      return uri.prePath + "/favicon.ico";
 | 
						|
 | 
						|
    return "";
 | 
						|
  },
 | 
						|
 | 
						|
  _getIconURLForSystemDefault: function(aHandlerInfo) {
 | 
						|
    // Handler info objects for MIME types on some OSes implement a property bag
 | 
						|
    // interface from which we can get an icon for the default app, so if we're
 | 
						|
    // dealing with a MIME type on one of those OSes, then try to get the icon.
 | 
						|
    if ("wrappedHandlerInfo" in aHandlerInfo) {
 | 
						|
      let wrappedHandlerInfo = aHandlerInfo.wrappedHandlerInfo;
 | 
						|
 | 
						|
      if (wrappedHandlerInfo instanceof Ci.nsIMIMEInfo &&
 | 
						|
          wrappedHandlerInfo instanceof Ci.nsIPropertyBag) {
 | 
						|
        try {
 | 
						|
          let url = wrappedHandlerInfo.getProperty("defaultApplicationIconURL");
 | 
						|
          if (url)
 | 
						|
            return url + "?size=16";
 | 
						|
        }
 | 
						|
        catch(ex) {}
 | 
						|
      }
 | 
						|
    }
 | 
						|
 | 
						|
    // If this isn't a MIME type object on an OS that supports retrieving
 | 
						|
    // the icon, or if we couldn't retrieve the icon for some other reason,
 | 
						|
    // then use a generic icon.
 | 
						|
    return ICON_URL_APP;
 | 
						|
  }
 | 
						|
 | 
						|
};
 |