gecko-dev/browser/components/nsBrowserGlue.js
2007-06-16 14:23:17 -07:00

473 lines
16 KiB
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 ***** */
const Ci = Components.interfaces;
const Cc = Components.classes;
const Cr = Components.results;
// Constructor
function BrowserGlue() {
this._init();
this._profileStarted = false;
}
BrowserGlue.prototype = {
_saveSession: false,
QueryInterface: function(iid)
{
xpcomCheckInterfaces(iid, kServiceIIds, Cr.NS_ERROR_NO_INTERFACE);
return this;
}
,
// nsIObserver implementation
observe: function(subject, topic, data)
{
switch(topic) {
case "xpcom-shutdown":
this._dispose();
break;
case "profile-before-change":
this._onProfileChange();
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 = Cc["@mozilla.org/consoleservice;1"].
getService(Ci.nsIConsoleService);
cs.logStringMessage(null); // clear the console (in case it's open)
cs.reset();
break;
case "quit-application-requested":
this._onQuitRequest(subject);
break;
case "quit-application-granted":
if (this._saveSession) {
var prefBranch = Cc["@mozilla.org/preferences-service;1"].
getService(Ci.nsIPrefBranch);
prefBranch.setBoolPref("browser.sessionstore.resume_session_once", true);
}
break;
}
}
,
// initialization (called on application startup)
_init: function()
{
// observer registration
const osvr = Cc['@mozilla.org/observer-service;1'].
getService(Ci.nsIObserverService);
osvr.addObserver(this, "profile-before-change", false);
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);
osvr.addObserver(this, "quit-application-requested", false);
osvr.addObserver(this, "quit-application-granted", false);
},
// cleanup (called on application shutdown)
_dispose: function()
{
// observer removal
const osvr = Cc['@mozilla.org/observer-service;1'].
getService(Ci.nsIObserverService);
osvr.removeObserver(this, "profile-before-change");
osvr.removeObserver(this, "profile-change-teardown");
osvr.removeObserver(this, "xpcom-shutdown");
osvr.removeObserver(this, "final-ui-startup");
osvr.removeObserver(this, "browser:purge-session-history");
osvr.removeObserver(this, "quit-application-requested");
osvr.removeObserver(this, "quit-application-granted");
},
// 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 prefBranch = Cc["@mozilla.org/preferences-service;1"].
getService(Ci.nsIPrefBranch);
var EULAVersion = prefBranch.getIntPref("browser.EULA.version");
mustDisplayEULA = !prefBranch.getBoolPref("browser.EULA." + EULAVersion + ".accepted");
} catch(ex) {
}
if (mustDisplayEULA) {
var ww2 = Cc["@mozilla.org/embedcomp/window-watcher;1"].
getService(Ci.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 = Cc["@mozilla.org/xre/app-info;1"].getService(Ci.nsIXULAppInfo).
QueryInterface(Ci.nsIXULRuntime);
if (app.inSafeMode) {
var ww = Cc["@mozilla.org/embedcomp/window-watcher;1"].
getService(Ci.nsIWindowWatcher);
ww.openWindow(null, "chrome://browser/content/safeMode.xul",
"_blank", "chrome,centerscreen,modal,resizable=no", null);
}
// initialize Places
this._initPlaces();
// indicate that the profile was initialized
this._profileStarted = true;
},
_onProfileChange: function()
{
// this block is for code that depends on _onProfileStartup() having
// been called.
if (this._profileStarted) {
// final places cleanup
this._shutdownPlaces();
}
},
// 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 = Cc['@mozilla.org/toolkit/app-startup;1'].
getService(Ci.nsIAppStartup);
try {
appStartup.enterLastWindowClosingSurvivalArea();
this.Sanitizer.onShutdown();
} catch(ex) {
} finally {
appStartup.exitLastWindowClosingSurvivalArea();
}
},
_onQuitRequest: function(aCancelQuit)
{
var wm = Cc["@mozilla.org/appshell/window-mediator;1"].
getService(Ci.nsIWindowMediator);
var windowcount = 0;
var pagecount = 0;
var browserEnum = wm.getEnumerator("navigator:browser");
while (browserEnum.hasMoreElements()) {
windowcount++;
var browser = browserEnum.getNext();
var tabbrowser = browser.document.getElementById("content");
if (tabbrowser)
pagecount += tabbrowser.browsers.length;
}
this._saveSession = false;
if (pagecount < 2)
return;
var prefBranch = Cc["@mozilla.org/preferences-service;1"].
getService(Ci.nsIPrefBranch);
var showPrompt = true;
try {
if (prefBranch.getIntPref("browser.startup.page") == 3 ||
prefBranch.getBoolPref("browser.sessionstore.resume_session_once"))
showPrompt = false;
else
showPrompt = prefBranch.getBoolPref("browser.warnOnQuit");
} catch (ex) {}
var buttonChoice = 0;
if (showPrompt) {
var bundleService = Cc["@mozilla.org/intl/stringbundle;1"].
getService(Ci.nsIStringBundleService);
var quitBundle = bundleService.createBundle("chrome://browser/locale/quitDialog.properties");
var brandBundle = bundleService.createBundle("chrome://branding/locale/brand.properties");
var appName = brandBundle.GetStringFromName("brandShortName");
var quitDialogTitle = quitBundle.formatStringFromName("quitDialogTitle",
[appName], 1);
var quitTitle = quitBundle.GetStringFromName("quitTitle");
var cancelTitle = quitBundle.GetStringFromName("cancelTitle");
var saveTitle = quitBundle.GetStringFromName("saveTitle");
var neverAskText = quitBundle.GetStringFromName("neverAsk");
if (windowcount == 1)
var message = quitBundle.formatStringFromName("messageNoWindows",
[appName], 1);
else
var message = quitBundle.formatStringFromName("message",
[appName], 1);
var promptService = Cc["@mozilla.org/embedcomp/prompt-service;1"].
getService(Ci.nsIPromptService);
var flags = promptService.BUTTON_TITLE_IS_STRING * promptService.BUTTON_POS_0 +
promptService.BUTTON_TITLE_IS_STRING * promptService.BUTTON_POS_1 +
promptService.BUTTON_TITLE_IS_STRING * promptService.BUTTON_POS_2 +
promptService.BUTTON_POS_0_DEFAULT;
var neverAsk = {value:false};
buttonChoice = promptService.confirmEx(null, quitDialogTitle, message,
flags, quitTitle, cancelTitle, saveTitle,
neverAskText, neverAsk);
switch (buttonChoice) {
case 0:
if (neverAsk.value)
prefBranch.setBoolPref("browser.warnOnQuit", false);
break;
case 1:
aCancelQuit.QueryInterface(Ci.nsISupportsPRBool);
aCancelQuit.data = true;
break;
case 2:
// could also set browser.warnOnQuit to false here,
// but not setting it is a little safer.
if (neverAsk.value)
prefBranch.setIntPref("browser.startup.page", 3);
break;
}
this._saveSession = buttonChoice == 2;
}
},
// returns the (cached) Sanitizer constructor
get Sanitizer()
{
if(typeof(Sanitizer) != "function") { // we should dynamically load the script
Cc["@mozilla.org/moz/jssubscript-loader;1"].
getService(Ci.mozIJSSubScriptLoader).
loadSubScript("chrome://browser/content/sanitize.js", null);
}
return Sanitizer;
},
/**
* Initialize Places
* - imports the bookmarks html file if bookmarks datastore is empty
*/
_initPlaces: function bg__initPlaces() {
#ifdef MOZ_PLACES_BOOKMARKS
// we need to instantiate the history service before we check the
// the browser.places.importBookmarksHTML pref, as
// nsNavHistory::ForceMigrateBookmarksDB() will set that pref
// if we need to force a migration (due to a schema change)
var histsvc = Cc["@mozilla.org/browser/nav-history-service;1"].
getService(Ci.nsINavHistoryService);
var importBookmarks = false;
try {
var prefBranch = Cc["@mozilla.org/preferences-service;1"].
getService(Ci.nsIPrefBranch);
importBookmarks = prefBranch.getBoolPref("browser.places.importBookmarksHTML");
} catch(ex) {}
if (!importBookmarks)
return;
var dirService = Cc["@mozilla.org/file/directory_service;1"].
getService(Ci.nsIProperties);
var bookmarksFile = dirService.get("BMarks", Ci.nsILocalFile);
if (bookmarksFile.exists()) {
// import the file
try {
var importer =
Cc["@mozilla.org/browser/places/import-export-service;1"].
getService(Ci.nsIPlacesImportExportService);
importer.importHTMLFromFile(bookmarksFile, true);
} catch(ex) {
} finally {
prefBranch.setBoolPref("browser.places.importBookmarksHTML", false);
}
// backup pre-places bookmarks.html
// XXXtodo remove this before betas, after import/export is solid
var profDir = dirService.get("ProfD", Ci.nsILocalFile);
var bookmarksBackup = profDir.clone();
bookmarksBackup.append("bookmarks.preplaces.html");
if (!bookmarksBackup.exists()) {
// save old bookmarks.html file as bookmarks.preplaces.html
try {
bookmarksFile.copyTo(profDir, "bookmarks.preplaces.html");
} catch(ex) {
dump("nsBrowserGlue::_initPlaces(): copy of bookmarks.html to bookmarks.preplaces.html failed: " + ex + "\n");
}
}
}
#endif
},
/**
* Places shut-down tasks
* - back up and archive bookmarks
*/
_shutdownPlaces: function bg__shutdownPlaces() {
#ifdef MOZ_PLACES_BOOKMARKS
// backup bookmarks to bookmarks.html
var importer =
Cc["@mozilla.org/browser/places/import-export-service;1"].
getService(Ci.nsIPlacesImportExportService);
importer.backupBookmarksFile();
#endif
},
// ------------------------------
// 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 = [
Ci.nsIObserver,
Ci.nsISupports,
Ci.nsISupportsWeakReference,
Ci.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 Cr.NS_ERROR_NO_AGGREGATION;
xpcomCheckInterfaces(iid, kServiceIIds,
Cr.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(Ci.nsIComponentRegistrar)
.registerFactoryLocation(kServiceCId,
kServiceName,
kServiceCtrId,
fileSpec,
location,
type);
const catman = Cc['@mozilla.org/categorymanager;1'].
getService(Ci.nsICategoryManager);
var len = kServiceCats.length;
for (var j = 0; j < len; j++) {
catman.addCategoryEntry(kServiceCats[j],
kServiceCtrId, kServiceCtrId, true, true);
}
this.registered = true;
}
},
unregisterSelf: function(compMgr, fileSpec, location)
{
compMgr.QueryInterface(Ci.nsIComponentRegistrar)
.unregisterFactoryLocation(kServiceCId, fileSpec);
const catman = Cc['@mozilla.org/categorymanager;1'].
getService(Ci.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 Cr[
iid.equals(Ci.nsIFactory)
? "NS_ERROR_NO_INTERFACE"
: "NS_ERROR_NOT_IMPLEMENTED"
];
},
canUnload: function(compMgr)
{
return true;
}
};
// entrypoint
function NSGetModule(compMgr, fileSpec) {
return Module;
}