pjs/browser/components/nsBrowserGlue.js

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JavaScript

/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is the Firefox Browser Glue Service.
*
* The Initial Developer of the Original Code is
* Giorgio Maone
* Portions created by the Initial Developer are Copyright (C) 2005
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Giorgio Maone <g.maone@informaction.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
// Constructor
function BrowserGlue() {
this._init();
}
BrowserGlue.prototype = {
QueryInterface: function(iid)
{
xpcomCheckInterfaces(iid, kServiceIIds, Components.results.NS_ERROR_NO_INTERFACE);
return this;
}
,
// nsIObserver implementation
observe: function(subject, topic, data)
{
switch(topic) {
case "xpcom-shutdown":
this._dispose();
break;
case "profile-change-teardown":
this._onProfileShutdown();
break;
case "final-ui-startup":
this._onProfileStartup();
break;
case "browser:purge-session-history":
// reset the console service's error buffer
const cs = Components.classes["@mozilla.org/consoleservice;1"]
.getService(Components.interfaces.nsIConsoleService);
cs.logStringMessage(null); // clear the console (in case it's open)
cs.reset();
break;
}
}
,
// initialization (called on application startup)
_init: function()
{
// observer registration
const osvr = Components.classes['@mozilla.org/observer-service;1']
.getService(Components.interfaces.nsIObserverService);
osvr.addObserver(this, "profile-change-teardown", false);
osvr.addObserver(this, "xpcom-shutdown", false);
osvr.addObserver(this, "final-ui-startup", false);
osvr.addObserver(this, "browser:purge-session-history", false);
},
// cleanup (called on application shutdown)
_dispose: function()
{
// observer removal
const osvr = Components.classes['@mozilla.org/observer-service;1']
.getService(Components.interfaces.nsIObserverService);
osvr.removeObserver(this, "profile-change-teardown");
osvr.removeObserver(this, "xpcom-shutdown");
osvr.removeObserver(this, "final-ui-startup");
osvr.removeObserver(this, "browser:purge-session-history");
},
// profile startup handler (contains profile initialization routines)
_onProfileStartup: function()
{
// check to see if the EULA must be shown on startup
try {
var mustDisplayEULA = true;
var prefService = Components.classes["@mozilla.org/preferences-service;1"]
.getService(Components.interfaces.nsIPrefBranch);
var EULAVersion = prefService.getIntPref("browser.EULA.version");
mustDisplayEULA = !prefService.getBoolPref("browser.EULA." + EULAVersion + ".accepted");
} catch(ex) {
}
if (mustDisplayEULA) {
var ww2 = Components.classes["@mozilla.org/embedcomp/window-watcher;1"]
.getService(Components.interfaces.nsIWindowWatcher);
ww2.openWindow(null, "chrome://browser/content/EULA.xul",
"_blank", "chrome,centerscreen,modal,resizable=yes", null);
}
this.Sanitizer.onStartup();
// check if we're in safe mode
var app = Components.classes["@mozilla.org/xre/app-info;1"].getService(Components.interfaces.nsIXULAppInfo)
.QueryInterface(Components.interfaces.nsIXULRuntime);
if (app.inSafeMode) {
var ww = Components.classes["@mozilla.org/embedcomp/window-watcher;1"]
.getService(Components.interfaces.nsIWindowWatcher);
ww.openWindow(null, "chrome://browser/content/safeMode.xul",
"_blank", "chrome,centerscreen,modal,resizable=no", null);
}
},
// profile shutdown handler (contains profile cleanup routines)
_onProfileShutdown: function()
{
// here we enter last survival area, in order to avoid multiple
// "quit-application" notifications caused by late window closings
const appStartup = Components.classes['@mozilla.org/toolkit/app-startup;1']
.getService(Components.interfaces.nsIAppStartup);
try {
appStartup.enterLastWindowClosingSurvivalArea();
this.Sanitizer.onShutdown();
} catch(ex) {
} finally {
appStartup.exitLastWindowClosingSurvivalArea();
}
},
// returns the (cached) Sanitizer constructor
get Sanitizer()
{
if(typeof(Sanitizer) != "function") { // we should dynamically load the script
Components.classes["@mozilla.org/moz/jssubscript-loader;1"]
.getService(Components.interfaces.mozIJSSubScriptLoader)
.loadSubScript("chrome://browser/content/sanitize.js", null);
}
return Sanitizer;
},
// ------------------------------
// public nsIBrowserGlue members
// ------------------------------
sanitize: function(aParentWindow)
{
this.Sanitizer.sanitize(aParentWindow);
}
}
// XPCOM Scaffolding code
// component defined in this file
const kServiceName = "Firefox Browser Glue Service";
const kServiceId = "{eab9012e-5f74-4cbc-b2b5-a590235513cc}";
const kServiceCtrId = "@mozilla.org/browser/browserglue;1";
const kServiceConstructor = BrowserGlue;
const kServiceCId = Components.ID(kServiceId);
// interfaces implemented by this component
const kServiceIIds = [
Components.interfaces.nsIObserver,
Components.interfaces.nsISupports,
Components.interfaces.nsISupportsWeakReference,
Components.interfaces.nsIBrowserGlue
];
// categories which this component is registered in
const kServiceCats = ["app-startup"];
// Factory object
const kServiceFactory = {
_instance: null,
createInstance: function (outer, iid)
{
if (outer != null) throw Components.results.NS_ERROR_NO_AGGREGATION;
xpcomCheckInterfaces(iid, kServiceIIds,
Components.results.NS_ERROR_INVALID_ARG);
return this._instance == null ?
this._instance = new kServiceConstructor() : this._instance;
}
};
function xpcomCheckInterfaces(iid, iids, ex) {
for (var j = iids.length; j-- >0;) {
if (iid.equals(iids[j])) return true;
}
throw ex;
}
// Module
var Module = {
registered: false,
registerSelf: function(compMgr, fileSpec, location, type)
{
if (!this.registered) {
compMgr.QueryInterface(Components.interfaces.nsIComponentRegistrar)
.registerFactoryLocation(kServiceCId,
kServiceName,
kServiceCtrId,
fileSpec,
location,
type);
const catman = Components.classes['@mozilla.org/categorymanager;1']
.getService(Components.interfaces.nsICategoryManager);
var len = kServiceCats.length;
for (var j = 0; j < len; j++) {
catman.addCategoryEntry(kServiceCats[j],
kServiceCtrId, kServiceCtrId, true, true, null);
}
this.registered = true;
}
},
unregisterSelf: function(compMgr, fileSpec, location)
{
compMgr.QueryInterface(Components.interfaces.nsIComponentRegistrar)
.unregisterFactoryLocation(kServiceCId, fileSpec);
const catman = Components.classes['@mozilla.org/categorymanager;1']
.getService(Components.interfaces.nsICategoryManager);
var len = kServiceCats.length;
for (var j = 0; j < len; j++) {
catman.deleteCategoryEntry(kServiceCats[j], kServiceCtrId, true);
}
},
getClassObject: function(compMgr, cid, iid)
{
if(cid.equals(kServiceCId))
return kServiceFactory;
throw Components.results[
iid.equals(Components.interfaces.nsIFactory)
? "NS_ERROR_NO_INTERFACE"
: "NS_ERROR_NOT_IMPLEMENTED"
];
},
canUnload: function(compMgr)
{
return true;
}
};
// entrypoint
function NSGetModule(compMgr, fileSpec) {
return Module;
}