зеркало из https://github.com/mozilla/gecko-dev.git
720 строки
20 KiB
JavaScript
720 строки
20 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
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Components.utils.import("resource://gre/modules/AddonManager.jsm");
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//=================================================
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// Console constructor
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function Console() {
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this._console = Components.classes["@mozilla.org/consoleservice;1"]
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.getService(Ci.nsIConsoleService);
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}
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//=================================================
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// Console implementation
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Console.prototype = {
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log: function cs_log(aMsg) {
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this._console.logStringMessage(aMsg);
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},
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open: function cs_open() {
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var wMediator = Components.classes["@mozilla.org/appshell/window-mediator;1"]
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.getService(Ci.nsIWindowMediator);
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var console = wMediator.getMostRecentWindow("global:console");
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if (!console) {
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var wWatch = Components.classes["@mozilla.org/embedcomp/window-watcher;1"]
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.getService(Ci.nsIWindowWatcher);
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wWatch.openWindow(null, "chrome://global/content/console.xul", "_blank",
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"chrome,dialog=no,all", null);
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} else {
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// console was already open
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console.focus();
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}
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},
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QueryInterface: XPCOMUtils.generateQI([Ci.extIConsole])
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};
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//=================================================
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// EventItem constructor
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function EventItem(aType, aData) {
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this._type = aType;
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this._data = aData;
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}
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//=================================================
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// EventItem implementation
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EventItem.prototype = {
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_cancel: false,
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get type() {
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return this._type;
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},
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get data() {
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return this._data;
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},
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preventDefault: function ei_pd() {
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this._cancel = true;
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},
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QueryInterface: XPCOMUtils.generateQI([Ci.extIEventItem])
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};
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//=================================================
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// Events constructor
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function Events(notifier) {
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this._listeners = [];
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this._notifier = notifier;
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}
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//=================================================
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// Events implementation
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Events.prototype = {
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addListener: function evts_al(aEvent, aListener) {
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function hasFilter(element) {
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return element.event == aEvent && element.listener == aListener;
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}
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if (this._listeners.some(hasFilter))
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return;
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this._listeners.push({
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event: aEvent,
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listener: aListener
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});
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if (this._notifier) {
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this._notifier(aEvent, aListener);
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}
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},
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removeListener: function evts_rl(aEvent, aListener) {
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function hasFilter(element) {
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return (element.event != aEvent) || (element.listener != aListener);
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}
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this._listeners = this._listeners.filter(hasFilter);
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},
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dispatch: function evts_dispatch(aEvent, aEventItem) {
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var eventItem = new EventItem(aEvent, aEventItem);
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this._listeners.forEach(function(key){
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if (key.event == aEvent) {
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key.listener.handleEvent ?
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key.listener.handleEvent(eventItem) :
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key.listener(eventItem);
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}
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});
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return !eventItem._cancel;
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},
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QueryInterface: XPCOMUtils.generateQI([Ci.extIEvents])
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};
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//=================================================
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// PreferenceObserver (internal class)
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//
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// PreferenceObserver is a global singleton which watches the browser's
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// preferences and sends you events when things change.
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function PreferenceObserver() {
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this._observersDict = {};
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}
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PreferenceObserver.prototype = {
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/**
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* Add a preference observer.
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*
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* @param aPrefs the nsIPrefBranch onto which we'll install our listener.
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* @param aDomain the domain our listener will watch (a string).
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* @param aEvent the event to listen to (you probably want "change").
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* @param aListener the function to call back when the event fires. This
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* function will receive an EventData argument.
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*/
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addListener: function po_al(aPrefs, aDomain, aEvent, aListener) {
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var root = aPrefs.root;
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if (!this._observersDict[root]) {
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this._observersDict[root] = {};
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}
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var observer = this._observersDict[root][aDomain];
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if (!observer) {
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observer = {
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events: new Events(),
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observe: function po_observer_obs(aSubject, aTopic, aData) {
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this.events.dispatch("change", aData);
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},
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QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver,
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Ci.nsISupportsWeakReference])
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};
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observer.prefBranch = aPrefs;
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observer.prefBranch.addObserver(aDomain, observer, /* ownsWeak = */ true);
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// Notice that the prefBranch keeps a weak reference to the observer;
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// it's this._observersDict which keeps the observer alive.
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this._observersDict[root][aDomain] = observer;
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}
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observer.events.addListener(aEvent, aListener);
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},
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/**
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* Remove a preference observer.
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*
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* This function's parameters are identical to addListener's.
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*/
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removeListener: function po_rl(aPrefs, aDomain, aEvent, aListener) {
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var root = aPrefs.root;
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if (!this._observersDict[root] ||
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!this._observersDict[root][aDomain]) {
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return;
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}
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var observer = this._observersDict[root][aDomain];
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observer.events.removeListener(aEvent, aListener);
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if (observer.events._listeners.length == 0) {
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// nsIPrefBranch objects are not singletons -- we can have two
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// nsIPrefBranch'es for the same branch. There's no guarantee that
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// aPrefs is the same object as observer.prefBranch, so we have to call
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// removeObserver on observer.prefBranch.
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observer.prefBranch.removeObserver(aDomain, observer);
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delete this._observersDict[root][aDomain];
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if (Object.keys(this._observersDict[root]).length == 0) {
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delete this._observersDict[root];
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}
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}
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}
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};
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//=================================================
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// PreferenceBranch constructor
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function PreferenceBranch(aBranch) {
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if (!aBranch)
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aBranch = "";
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this._root = aBranch;
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this._prefs = Components.classes["@mozilla.org/preferences-service;1"]
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.getService(Ci.nsIPrefService)
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.QueryInterface(Ci.nsIPrefBranch);
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if (aBranch)
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this._prefs = this._prefs.getBranch(aBranch);
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let prefs = this._prefs;
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this._events = {
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addListener: function pb_al(aEvent, aListener) {
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gPreferenceObserver.addListener(prefs, "", aEvent, aListener);
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},
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removeListener: function pb_rl(aEvent, aListener) {
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gPreferenceObserver.removeListener(prefs, "", aEvent, aListener);
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},
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QueryInterface: XPCOMUtils.generateQI([Ci.extIEvents])
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};
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}
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//=================================================
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// PreferenceBranch implementation
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PreferenceBranch.prototype = {
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get root() {
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return this._root;
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},
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get all() {
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return this.find({});
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},
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get events() {
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return this._events;
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},
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// XXX: Disabled until we can figure out the wrapped object issues
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// name: "name" or /name/
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// path: "foo.bar." or "" or /fo+\.bar/
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// type: Boolean, Number, String (getPrefType)
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// locked: true, false (prefIsLocked)
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// modified: true, false (prefHasUserValue)
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find: function prefs_find(aOptions) {
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var retVal = [];
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var items = this._prefs.getChildList("");
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for (var i = 0; i < items.length; i++) {
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retVal.push(new Preference(items[i], this));
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}
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return retVal;
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},
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has: function prefs_has(aName) {
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return (this._prefs.getPrefType(aName) != Ci.nsIPrefBranch.PREF_INVALID);
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},
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get: function prefs_get(aName) {
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return this.has(aName) ? new Preference(aName, this) : null;
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},
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getValue: function prefs_gv(aName, aValue) {
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var type = this._prefs.getPrefType(aName);
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switch (type) {
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case Ci.nsIPrefBranch.PREF_STRING:
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aValue = this._prefs.getComplexValue(aName, Ci.nsISupportsString).data;
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break;
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case Ci.nsIPrefBranch.PREF_BOOL:
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aValue = this._prefs.getBoolPref(aName);
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break;
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case Ci.nsIPrefBranch.PREF_INT:
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aValue = this._prefs.getIntPref(aName);
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break;
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}
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return aValue;
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},
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setValue: function prefs_sv(aName, aValue) {
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var type = aValue != null ? aValue.constructor.name : "";
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switch (type) {
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case "String":
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var str = Components.classes["@mozilla.org/supports-string;1"]
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.createInstance(Ci.nsISupportsString);
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str.data = aValue;
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this._prefs.setComplexValue(aName, Ci.nsISupportsString, str);
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break;
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case "Boolean":
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this._prefs.setBoolPref(aName, aValue);
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break;
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case "Number":
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this._prefs.setIntPref(aName, aValue);
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break;
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default:
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throw("Unknown preference value specified.");
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}
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},
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reset: function prefs_reset() {
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this._prefs.resetBranch("");
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},
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QueryInterface: XPCOMUtils.generateQI([Ci.extIPreferenceBranch])
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};
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//=================================================
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// Preference constructor
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function Preference(aName, aBranch) {
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this._name = aName;
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this._branch = aBranch;
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var self = this;
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this._events = {
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addListener: function pref_al(aEvent, aListener) {
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gPreferenceObserver.addListener(self._branch._prefs, self._name, aEvent, aListener);
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},
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removeListener: function pref_rl(aEvent, aListener) {
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gPreferenceObserver.removeListener(self._branch._prefs, self._name, aEvent, aListener);
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},
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QueryInterface: XPCOMUtils.generateQI([Ci.extIEvents])
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};
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}
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//=================================================
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// Preference implementation
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Preference.prototype = {
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get name() {
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return this._name;
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},
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get type() {
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var value = "";
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var type = this.branch._prefs.getPrefType(this._name);
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switch (type) {
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case Ci.nsIPrefBranch.PREF_STRING:
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value = "String";
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break;
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case Ci.nsIPrefBranch.PREF_BOOL:
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value = "Boolean";
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break;
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case Ci.nsIPrefBranch.PREF_INT:
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value = "Number";
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break;
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}
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return value;
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},
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get value() {
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return this.branch.getValue(this._name, null);
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},
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set value(aValue) {
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return this.branch.setValue(this._name, aValue);
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},
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get locked() {
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return this.branch._prefs.prefIsLocked(this.name);
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},
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set locked(aValue) {
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this.branch._prefs[ aValue ? "lockPref" : "unlockPref" ](this.name);
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},
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get modified() {
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return this.branch._prefs.prefHasUserValue(this.name);
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},
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get branch() {
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return this._branch;
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},
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get events() {
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return this._events;
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},
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reset: function pref_reset() {
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this.branch._prefs.clearUserPref(this.name);
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},
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QueryInterface: XPCOMUtils.generateQI([Ci.extIPreference])
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};
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//=================================================
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// SessionStorage constructor
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function SessionStorage() {
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this._storage = {};
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this._events = new Events();
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}
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//=================================================
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// SessionStorage implementation
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SessionStorage.prototype = {
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get events() {
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return this._events;
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},
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has: function ss_has(aName) {
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return this._storage.hasOwnProperty(aName);
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},
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set: function ss_set(aName, aValue) {
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this._storage[aName] = aValue;
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this._events.dispatch("change", aName);
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},
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get: function ss_get(aName, aDefaultValue) {
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return this.has(aName) ? this._storage[aName] : aDefaultValue;
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},
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QueryInterface : XPCOMUtils.generateQI([Ci.extISessionStorage])
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};
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//=================================================
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// ExtensionObserver constructor (internal class)
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//
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// ExtensionObserver is a global singleton which watches the browser's
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// extensions and sends you events when things change.
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function ExtensionObserver() {
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this._eventsDict = {};
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AddonManager.addAddonListener(this);
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AddonManager.addInstallListener(this);
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}
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//=================================================
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// ExtensionObserver implementation (internal class)
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ExtensionObserver.prototype = {
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onDisabling: function eo_onDisabling(addon, needsRestart) {
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this._dispatchEvent(addon.id, "disable");
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},
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onEnabling: function eo_onEnabling(addon, needsRestart) {
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this._dispatchEvent(addon.id, "enable");
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},
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onUninstalling: function eo_onUninstalling(addon, needsRestart) {
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this._dispatchEvent(addon.id, "uninstall");
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},
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onOperationCancelled: function eo_onOperationCancelled(addon) {
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this._dispatchEvent(addon.id, "cancel");
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},
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onInstallEnded: function eo_onInstallEnded(install, addon) {
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this._dispatchEvent(addon.id, "upgrade");
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},
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addListener: function eo_al(aId, aEvent, aListener) {
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var events = this._eventsDict[aId];
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if (!events) {
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events = new Events();
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this._eventsDict[aId] = events;
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}
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events.addListener(aEvent, aListener);
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},
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removeListener: function eo_rl(aId, aEvent, aListener) {
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var events = this._eventsDict[aId];
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if (!events) {
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return;
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}
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events.removeListener(aEvent, aListener);
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if (events._listeners.length == 0) {
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delete this._eventsDict[aId];
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}
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},
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_dispatchEvent: function eo_dispatchEvent(aId, aEvent) {
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var events = this._eventsDict[aId];
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if (events) {
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events.dispatch(aEvent, aId);
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}
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}
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};
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//=================================================
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// Extension constructor
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function Extension(aItem) {
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this._item = aItem;
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this._firstRun = false;
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this._prefs = new PreferenceBranch("extensions." + this.id + ".");
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this._storage = new SessionStorage();
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let id = this.id;
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this._events = {
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addListener: function ext_events_al(aEvent, aListener) {
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gExtensionObserver.addListener(id, aEvent, aListener);
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},
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removeListener: function ext_events_rl(aEvent, aListener) {
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gExtensionObserver.addListener(id, aEvent, aListener);
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},
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QueryInterface: XPCOMUtils.generateQI([Ci.extIEvents])
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};
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var installPref = "install-event-fired";
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if (!this._prefs.has(installPref)) {
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this._prefs.setValue(installPref, true);
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this._firstRun = true;
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}
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}
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//=================================================
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// Extension implementation
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Extension.prototype = {
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get id() {
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return this._item.id;
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},
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get name() {
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return this._item.name;
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},
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get enabled() {
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return this._item.isActive;
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},
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get version() {
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return this._item.version;
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},
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get firstRun() {
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return this._firstRun;
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},
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get storage() {
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return this._storage;
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},
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get prefs() {
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return this._prefs;
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},
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get events() {
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return this._events;
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},
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QueryInterface: XPCOMUtils.generateQI([Ci.extIExtension])
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};
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//=================================================
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// Extensions constructor
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function Extensions(addons) {
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this._cache = {};
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addons.forEach(function (addon) {
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this._cache[addon.id] = new Extension(addon);
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}, this);
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}
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|
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//=================================================
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// Extensions implementation
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Extensions.prototype = {
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get all() {
|
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return this.find({});
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},
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|
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// XXX: Disabled until we can figure out the wrapped object issues
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// id: "some@id" or /id/
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// name: "name" or /name/
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// version: "1.0.1"
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// minVersion: "1.0"
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// maxVersion: "2.0"
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find: function exts_find(aOptions) {
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return Object.keys(this._cache).map(id => this._cache[id]);
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},
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has: function exts_has(aId) {
|
|
return aId in this._cache;
|
|
},
|
|
|
|
get: function exts_get(aId) {
|
|
return this.has(aId) ? this._cache[aId] : null;
|
|
},
|
|
|
|
QueryInterface: XPCOMUtils.generateQI([Ci.extIExtensions])
|
|
};
|
|
|
|
//=================================================
|
|
// Application globals
|
|
|
|
var gExtensionObserver = new ExtensionObserver();
|
|
var gPreferenceObserver = new PreferenceObserver();
|
|
|
|
//=================================================
|
|
// extApplication constructor
|
|
function extApplication() {
|
|
}
|
|
|
|
//=================================================
|
|
// extApplication implementation
|
|
extApplication.prototype = {
|
|
initToolkitHelpers: function extApp_initToolkitHelpers() {
|
|
XPCOMUtils.defineLazyServiceGetter(this, "_info",
|
|
"@mozilla.org/xre/app-info;1",
|
|
"nsIXULAppInfo");
|
|
|
|
this._obs = Cc["@mozilla.org/observer-service;1"].
|
|
getService(Ci.nsIObserverService);
|
|
this._obs.addObserver(this, "xpcom-shutdown", /* ownsWeak = */ true);
|
|
this._registered = {"unload": true};
|
|
},
|
|
|
|
classInfo: XPCOMUtils.generateCI({interfaces: [Ci.extIApplication,
|
|
Ci.nsIObserver],
|
|
flags: Ci.nsIClassInfo.SINGLETON}),
|
|
|
|
// extIApplication
|
|
get id() {
|
|
return this._info.ID;
|
|
},
|
|
|
|
get name() {
|
|
return this._info.name;
|
|
},
|
|
|
|
get version() {
|
|
return this._info.version;
|
|
},
|
|
|
|
// for nsIObserver
|
|
observe: function app_observe(aSubject, aTopic, aData) {
|
|
if (aTopic == "app-startup") {
|
|
this.events.dispatch("load", "application");
|
|
}
|
|
else if (aTopic == "final-ui-startup") {
|
|
this.events.dispatch("ready", "application");
|
|
}
|
|
else if (aTopic == "quit-application-requested") {
|
|
// we can stop the quit by checking the return value
|
|
if (this.events.dispatch("quit", "application") == false)
|
|
aSubject.data = true;
|
|
}
|
|
else if (aTopic == "xpcom-shutdown") {
|
|
this.events.dispatch("unload", "application");
|
|
gExtensionObserver = null;
|
|
gPreferenceObserver = null;
|
|
}
|
|
},
|
|
|
|
get console() {
|
|
let console = new Console();
|
|
this.__defineGetter__("console", () => console);
|
|
return this.console;
|
|
},
|
|
|
|
get storage() {
|
|
let storage = new SessionStorage();
|
|
this.__defineGetter__("storage", () => storage);
|
|
return this.storage;
|
|
},
|
|
|
|
get prefs() {
|
|
let prefs = new PreferenceBranch("");
|
|
this.__defineGetter__("prefs", () => prefs);
|
|
return this.prefs;
|
|
},
|
|
|
|
getExtensions: function(callback) {
|
|
AddonManager.getAddonsByTypes(["extension"], function (addons) {
|
|
callback.callback(new Extensions(addons));
|
|
});
|
|
},
|
|
|
|
get events() {
|
|
|
|
// This ensures that FUEL only registers for notifications as needed
|
|
// by callers. Note that the unload (xpcom-shutdown) event is listened
|
|
// for by default, as it's needed for cleanup purposes.
|
|
var self = this;
|
|
function registerCheck(aEvent) {
|
|
var rmap = { "load": "app-startup",
|
|
"ready": "final-ui-startup",
|
|
"quit": "quit-application-requested"};
|
|
if (!(aEvent in rmap) || aEvent in self._registered)
|
|
return;
|
|
|
|
self._obs.addObserver(self, rmap[aEvent], /* ownsWeak = */ true);
|
|
self._registered[aEvent] = true;
|
|
}
|
|
|
|
let events = new Events(registerCheck);
|
|
this.__defineGetter__("events", () => events);
|
|
return this.events;
|
|
},
|
|
|
|
// helper method for correct quitting/restarting
|
|
_quitWithFlags: function app__quitWithFlags(aFlags) {
|
|
let cancelQuit = Components.classes["@mozilla.org/supports-PRBool;1"]
|
|
.createInstance(Components.interfaces.nsISupportsPRBool);
|
|
let quitType = aFlags & Components.interfaces.nsIAppStartup.eRestart ? "restart" : null;
|
|
this._obs.notifyObservers(cancelQuit, "quit-application-requested", quitType);
|
|
if (cancelQuit.data)
|
|
return false; // somebody canceled our quit request
|
|
|
|
let appStartup = Components.classes['@mozilla.org/toolkit/app-startup;1']
|
|
.getService(Components.interfaces.nsIAppStartup);
|
|
appStartup.quit(aFlags);
|
|
return true;
|
|
},
|
|
|
|
quit: function app_quit() {
|
|
return this._quitWithFlags(Components.interfaces.nsIAppStartup.eAttemptQuit);
|
|
},
|
|
|
|
restart: function app_restart() {
|
|
return this._quitWithFlags(Components.interfaces.nsIAppStartup.eAttemptQuit |
|
|
Components.interfaces.nsIAppStartup.eRestart);
|
|
},
|
|
|
|
QueryInterface: XPCOMUtils.generateQI([Ci.extIApplication, Ci.nsISupportsWeakReference])
|
|
};
|