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BrowserStartup.js
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BrowserStartup.js
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/* ***** 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 Fennec Browser Startup component.
*
* The Initial Developer of the Original Code is Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2009
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Gavin Sharp <gavin@gavinsharp.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 Cc = Components.classes;
const Ci = Components.interfaces;
const Cu = Components.utils;
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
// Custom factory object to ensure that we're a singleton
const BrowserStartupServiceFactory = {
_instance: null,
createInstance: function (outer, iid) {
if (outer != null)
throw Components.results.NS_ERROR_NO_AGGREGATION;
return this._instance || (this._instance = new BrowserStartup());
}
};
function BrowserStartup() {
this._init();
}
BrowserStartup.prototype = {
// for XPCOM
classID: Components.ID("{1d542abc-c88b-4636-a4ef-075b49806317}"),
QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver, Ci.nsISupportsWeakReference]),
_xpcom_factory: BrowserStartupServiceFactory,
_init: function () {
this._observerService = Cc["@mozilla.org/observer-service;1"].
getService(Ci.nsIObserverService);
this._observerService.addObserver(this, "places-init-complete", false);
},
_initDefaultBookmarks: function () {
// We must instantiate the history service since it will tell us if we
// need to import or restore bookmarks due to first-run, corruption or
// forced migration (due to a major schema change).
let histsvc = Cc["@mozilla.org/browser/nav-history-service;1"].
getService(Ci.nsINavHistoryService);
// If the database is corrupt or has been newly created we should
// import bookmarks.
let databaseStatus = histsvc.databaseStatus;
let importBookmarks = databaseStatus == histsvc.DATABASE_STATUS_CREATE ||
databaseStatus == histsvc.DATABASE_STATUS_CORRUPT;
if (!importBookmarks) {
// Check to see whether "mobile" root already exists. This is to handle
// existing profiles created with pre-1.0 builds (which won't have mobile
// bookmarks root). We can remove this eventually when we stop
// caring about users migrating to current builds with pre-1.0 profiles.
let annos = Cc["@mozilla.org/browser/annotation-service;1"].
getService(Ci.nsIAnnotationService);
let mobileRootItems = annos.getItemsWithAnnotation("mobile/bookmarksRoot", {});
if (mobileRootItems.length > 0)
return; // no need to do initial import
}
Cu.import("resource://gre/modules/PlacesUtils.jsm");
try {
let observer = {
onStreamComplete : function(aLoader, aContext, aStatus, aLength, aResult) {
let converter = Cc["@mozilla.org/intl/scriptableunicodeconverter"].
createInstance(Ci.nsIScriptableUnicodeConverter);
let jsonStr = "";
try {
converter.charset = "UTF-8";
jsonStr = converter.convertFromByteArray(aResult, aResult.length);
// aReplace=false since this may be called when there are existing
// bookmarks that we don't want to overwrite ("no mobile root"
// case from above)
PlacesUtils.restoreBookmarksFromJSONString(jsonStr, false);
} catch (err) {
Cu.reportError("Failed to parse default bookmarks from bookmarks.json: " + err);
}
}
};
let ioSvc = Cc["@mozilla.org/network/io-service;1"].
getService(Ci.nsIIOService);
let uri = ioSvc.newURI("chrome://browser/locale/bookmarks.json", null, null);
let channel = ioSvc.newChannelFromURI(uri);
let sl = Cc["@mozilla.org/network/stream-loader;1"].
createInstance(Ci.nsIStreamLoader);
sl.init(observer);
channel.asyncOpen(sl, channel);
} catch (err) {
// Report the error, but ignore it.
Cu.reportError("Failed to load default bookmarks from bookmarks.json: " + err);
}
},
// nsIObserver
observe: function(aSubject, aTopic, aData) {
switch (aTopic) {
case "places-init-complete":
this._initDefaultBookmarks();
this._observerService.removeObserver(this, "places-init-complete");
break;
}
}
};
const NSGetFactory = XPCOMUtils.generateNSGetFactory([BrowserStartup]);