gecko-dev/browser/base/content/openLocationLastURL.jsm

104 строки
3.8 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 Open Location Dialog Utility Code.
*
* The Initial Developer of the Original Code is
* Ehsan Akhgari <ehsan.akhgari@gmail.com>.
* Portions created by the Initial Developer are Copyright (C) 2009
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* 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 LAST_URL_PREF = "general.open_location.last_url";
const nsISupportsString = Components.interfaces.nsISupportsString;
var EXPORTED_SYMBOLS = [ "gOpenLocationLastURL" ];
let pbSvc = Components.classes["@mozilla.org/privatebrowsing;1"]
.getService(Components.interfaces.nsIPrivateBrowsingService);
let prefSvc = Components.classes["@mozilla.org/preferences-service;1"]
.getService(Components.interfaces.nsIPrefBranch);
let observer = {
QueryInterface: function (aIID) {
if (aIID.equals(Components.interfaces.nsIObserver) ||
aIID.equals(Components.interfaces.nsISupports) ||
aIID.equals(Components.interfaces.nsISupportsWeakReference))
return this;
throw Components.results.NS_NOINTERFACE;
},
observe: function (aSubject, aTopic, aData) {
switch (aTopic) {
case "private-browsing":
gOpenLocationLastURLData = "";
break;
case "browser:purge-session-history":
gOpenLocationLastURL.reset();
break;
}
}
};
let os = Components.classes["@mozilla.org/observer-service;1"]
.getService(Components.interfaces.nsIObserverService);
os.addObserver(observer, "private-browsing", true);
os.addObserver(observer, "browser:purge-session-history", true);
let gOpenLocationLastURLData = "";
let gOpenLocationLastURL = {
get value() {
if (pbSvc.privateBrowsingEnabled)
return gOpenLocationLastURLData;
else {
try {
return prefSvc.getComplexValue(LAST_URL_PREF, nsISupportsString).data;
}
catch (e) {
return "";
}
}
},
set value(val) {
if (typeof val != "string")
val = "";
if (pbSvc.privateBrowsingEnabled)
gOpenLocationLastURLData = val;
else {
let str = Components.classes["@mozilla.org/supports-string;1"]
.createInstance(Components.interfaces.nsISupportsString);
str.data = val;
prefSvc.setComplexValue(LAST_URL_PREF, nsISupportsString, str);
}
},
reset: function() {
if (prefSvc.prefHasUserValue(LAST_URL_PREF))
prefSvc.clearUserPref(LAST_URL_PREF);
gOpenLocationLastURLData = "";
}
};