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gecko/browser/components/preferences/in-content/applications.js

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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
//****************************************************************************//
// Constants & Enumeration Values
Components.utils.import('resource://gre/modules/Services.jsm');
const TYPE_MAYBE_FEED = "application/vnd.mozilla.maybe.feed";
const TYPE_MAYBE_VIDEO_FEED = "application/vnd.mozilla.maybe.video.feed";
const TYPE_MAYBE_AUDIO_FEED = "application/vnd.mozilla.maybe.audio.feed";
const TYPE_PDF = "application/pdf";
const PREF_PDFJS_DISABLED = "pdfjs.disabled";
const TOPIC_PDFJS_HANDLER_CHANGED = "pdfjs:handlerChanged";
const PREF_DISABLED_PLUGIN_TYPES = "plugin.disable_full_page_plugin_for_types";
// Preferences that affect which entries to show in the list.
const PREF_SHOW_PLUGINS_IN_LIST = "browser.download.show_plugins_in_list";
const PREF_HIDE_PLUGINS_WITHOUT_EXTENSIONS =
"browser.download.hide_plugins_without_extensions";
/*
* Preferences where we store handling information about the feed type.
*
* browser.feeds.handler
* - "bookmarks", "reader" (clarified further using the .default preference),
* or "ask" -- indicates the default handler being used to process feeds;
* "bookmarks" is obsolete; to specify that the handler is bookmarks,
* set browser.feeds.handler.default to "bookmarks";
*
* browser.feeds.handler.default
* - "bookmarks", "client" or "web" -- indicates the chosen feed reader used
* to display feeds, either transiently (i.e., when the "use as default"
* checkbox is unchecked, corresponds to when browser.feeds.handler=="ask")
* or more permanently (i.e., the item displayed in the dropdown in Feeds
* preferences)
*
* browser.feeds.handler.webservice
* - the URL of the currently selected web service used to read feeds
*
* browser.feeds.handlers.application
* - nsILocalFile, stores the current client-side feed reading app if one has
* been chosen
*/
const PREF_FEED_SELECTED_APP = "browser.feeds.handlers.application";
const PREF_FEED_SELECTED_WEB = "browser.feeds.handlers.webservice";
const PREF_FEED_SELECTED_ACTION = "browser.feeds.handler";
const PREF_FEED_SELECTED_READER = "browser.feeds.handler.default";
const PREF_VIDEO_FEED_SELECTED_APP = "browser.videoFeeds.handlers.application";
const PREF_VIDEO_FEED_SELECTED_WEB = "browser.videoFeeds.handlers.webservice";
const PREF_VIDEO_FEED_SELECTED_ACTION = "browser.videoFeeds.handler";
const PREF_VIDEO_FEED_SELECTED_READER = "browser.videoFeeds.handler.default";
const PREF_AUDIO_FEED_SELECTED_APP = "browser.audioFeeds.handlers.application";
const PREF_AUDIO_FEED_SELECTED_WEB = "browser.audioFeeds.handlers.webservice";
const PREF_AUDIO_FEED_SELECTED_ACTION = "browser.audioFeeds.handler";
const PREF_AUDIO_FEED_SELECTED_READER = "browser.audioFeeds.handler.default";
// The nsHandlerInfoAction enumeration values in nsIHandlerInfo identify
// the actions the application can take with content of various types.
// But since nsIHandlerInfo doesn't support plugins, there's no value
// identifying the "use plugin" action, so we use this constant instead.
const kActionUsePlugin = 5;
/*
#ifdef MOZ_WIDGET_GTK2
*/
const ICON_URL_APP = "moz-icon://dummy.exe?size=16";
/*
#else
*/
const ICON_URL_APP = "chrome://browser/skin/preferences/application.png";
/*
#endif
*/
// For CSS. Can be one of "ask", "save", "plugin" or "feed". If absent, the icon URL
// was set by us to a custom handler icon and CSS should not try to override it.
const APP_ICON_ATTR_NAME = "appHandlerIcon";
//****************************************************************************//
// Utilities
function getFileDisplayName(file) {
#ifdef XP_WIN
if (file instanceof Ci.nsILocalFileWin) {
try {
return file.getVersionInfoField("FileDescription");
} catch (e) {}
}
#endif
#ifdef XP_MACOSX
if (file instanceof Ci.nsILocalFileMac) {
try {
return file.bundleDisplayName;
} catch (e) {}
}
#endif
return file.leafName;
}
function getLocalHandlerApp(aFile) {
var localHandlerApp = Cc["@mozilla.org/uriloader/local-handler-app;1"].
createInstance(Ci.nsILocalHandlerApp);
localHandlerApp.name = getFileDisplayName(aFile);
localHandlerApp.executable = aFile;
return localHandlerApp;
}
/**
* An enumeration of items in a JS array.
*
* FIXME: use ArrayConverter once it lands (bug 380839).
*
* @constructor
*/
function ArrayEnumerator(aItems) {
this._index = 0;
this._contents = aItems;
}
ArrayEnumerator.prototype = {
_index: 0,
hasMoreElements: function() {
return this._index < this._contents.length;
},
getNext: function() {
return this._contents[this._index++];
}
};
function isFeedType(t) {
return t == TYPE_MAYBE_FEED || t == TYPE_MAYBE_VIDEO_FEED || t == TYPE_MAYBE_AUDIO_FEED;
}
//****************************************************************************//
// HandlerInfoWrapper
/**
* This object wraps nsIHandlerInfo with some additional functionality
* the Applications prefpane needs to display and allow modification of
* the list of handled types.
*
* We create an instance of this wrapper for each entry we might display
* in the prefpane, and we compose the instances from various sources,
* including navigator.plugins and the handler service.
*
* We don't implement all the original nsIHandlerInfo functionality,
* just the stuff that the prefpane needs.
*
* In theory, all of the custom functionality in this wrapper should get
* pushed down into nsIHandlerInfo eventually.
*/
function HandlerInfoWrapper(aType, aHandlerInfo) {
this._type = aType;
this.wrappedHandlerInfo = aHandlerInfo;
}
HandlerInfoWrapper.prototype = {
// The wrapped nsIHandlerInfo object. In general, this object is private,
// but there are a couple cases where callers access it directly for things
// we haven't (yet?) implemented, so we make it a public property.
wrappedHandlerInfo: null,
//**************************************************************************//
// Convenience Utils
_handlerSvc: Cc["@mozilla.org/uriloader/handler-service;1"].
getService(Ci.nsIHandlerService),
_prefSvc: Cc["@mozilla.org/preferences-service;1"].
getService(Ci.nsIPrefBranch),
_categoryMgr: Cc["@mozilla.org/categorymanager;1"].
getService(Ci.nsICategoryManager),
element: function(aID) {
return document.getElementById(aID);
},
//**************************************************************************//
// nsIHandlerInfo
// The MIME type or protocol scheme.
_type: null,
get type() {
return this._type;
},
get description() {
if (this.wrappedHandlerInfo.description)
return this.wrappedHandlerInfo.description;
if (this.primaryExtension) {
var extension = this.primaryExtension.toUpperCase();
return this.element("bundlePreferences").getFormattedString("fileEnding",
[extension]);
}
return this.type;
},
get preferredApplicationHandler() {
return this.wrappedHandlerInfo.preferredApplicationHandler;
},
set preferredApplicationHandler(aNewValue) {
this.wrappedHandlerInfo.preferredApplicationHandler = aNewValue;
// Make sure the preferred handler is in the set of possible handlers.
if (aNewValue)
this.addPossibleApplicationHandler(aNewValue)
},
get possibleApplicationHandlers() {
return this.wrappedHandlerInfo.possibleApplicationHandlers;
},
addPossibleApplicationHandler: function(aNewHandler) {
var possibleApps = this.possibleApplicationHandlers.enumerate();
while (possibleApps.hasMoreElements()) {
if (possibleApps.getNext().equals(aNewHandler))
return;
}
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;
}
var handlers = this.possibleApplicationHandlers;
for (var i = 0; i < handlers.length; ++i) {
var handler = handlers.queryElementAt(i, Ci.nsIHandlerApp);
if (handler.equals(aHandler)) {
handlers.removeElementAt(i);
break;
}
}
},
get hasDefaultHandler() {
return this.wrappedHandlerInfo.hasDefaultHandler;
},
get defaultDescription() {
return this.wrappedHandlerInfo.defaultDescription;
},
// 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)
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;
}
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);
},
_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 = getFileDisplayName(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;
}
};
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",
_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",
_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",
_appPrefLabel: "audioPodcastFeed"
}
/**
* InternalHandlerInfoWrapper provides a basic mechanism to create an internal
* mime type handler that can be enabled/disabled in the applications preference
* menu.
*/
function InternalHandlerInfoWrapper(aMIMEType) {
var mimeSvc = Cc["@mozilla.org/mime;1"].getService(Ci.nsIMIMEService);
var handlerInfo = mimeSvc.getFromTypeAndExtension(aMIMEType, null);
HandlerInfoWrapper.call(this, aMIMEType, handlerInfo);
}
InternalHandlerInfoWrapper.prototype = {
__proto__: HandlerInfoWrapper.prototype,
// Override store so we so we can notify any code listening for registration
// or unregistration of this handler.
store: function() {
HandlerInfoWrapper.prototype.store.call(this);
Services.obs.notifyObservers(null, this._handlerChanged, null);
},
get enabled() {
throw Cr.NS_ERROR_NOT_IMPLEMENTED;
},
get description() {
return this.element("bundlePreferences").getString(this._appPrefLabel);
}
};
var pdfHandlerInfo = {
__proto__: new InternalHandlerInfoWrapper(TYPE_PDF),
_handlerChanged: TOPIC_PDFJS_HANDLER_CHANGED,
_appPrefLabel: "portableDocumentFormat",
get enabled() {
return !Services.prefs.getBoolPref(PREF_PDFJS_DISABLED);
},
};
//****************************************************************************//
// 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,
_prefSvc : Cc["@mozilla.org/preferences-service;1"].
getService(Ci.nsIPrefBranch),
_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._loadInternalHandlers();
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 higher level internal handlers so they can be turned on/off in the
* applications menu.
*/
_loadInternalHandlers: function() {
var internalHandlers = [pdfHandlerInfo];
for (let internalHandler of internalHandlers) {
if (internalHandler.enabled) {
this._handledTypes[internalHandler.type] = internalHandler;
}
}
},
/**
* 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.
*
* Also note that enabledPlugin does not get updated when
* plugin.disable_full_page_plugin_for_types changes, 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 = getFileDisplayName(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]);
}
if (aHandlerInfo instanceof InternalHandlerInfoWrapper) {
return this._prefsBundle.getFormattedString("previewInApp",
[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_MACBUNDLE_NAME__";
#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);
// Add the "Preview in Firefox" option for optional internal handlers.
if (handlerInfo instanceof InternalHandlerInfoWrapper) {
var internalMenuItem = document.createElement("menuitem");
internalMenuItem.setAttribute("action", Ci.nsIHandlerInfo.handleInternally);
let label = this._prefsBundle.getFormattedString("previewInApp",
[this._brandShortName]);
internalMenuItem.setAttribute("label", label);
internalMenuItem.setAttribute("tooltiptext", label);
internalMenuItem.setAttribute(APP_ICON_ATTR_NAME, "ask");
menuPopup.appendChild(internalMenuItem);
}
{
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 = getFileDisplayName(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;
let chooseAppCallback = function(aHandlerApp) {
// 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 (aHandlerApp) {
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(aHandlerApp)) {
actionsMenu.selectedIndex = i;
this.onSelectAction(menuItem);
break;
}
}
}
}.bind(this);
#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);
}
chooseAppCallback(handlerApp);
#else
let winTitle = this._prefsBundle.getString("fpTitleChooseApp");
let fp = Cc["@mozilla.org/filepicker;1"].createInstance(Ci.nsIFilePicker);
let fpCallback = function fpCallback_done(aResult) {
if (aResult == Ci.nsIFilePicker.returnOK && fp.file &&
this._isValidHandlerExecutable(fp.file)) {
handlerApp = Cc["@mozilla.org/uriloader/local-handler-app;1"].
createInstance(Ci.nsILocalHandlerApp);
handlerApp.name = getFileDisplayName(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);
chooseAppCallback(handlerApp);
}
}.bind(this);
// 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.
fp.init(window, winTitle, Ci.nsIFilePicker.modeOpen);
fp.appendFilters(Ci.nsIFilePicker.filterApps);
fp.open(fpCallback);
#endif
},
// 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;
} else if (aHandlerInfo instanceof InternalHandlerInfoWrapper) {
aElement.setAttribute(APP_ICON_ATTR_NAME, "ask");
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;
}
};
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