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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
const LAST_URL_PREF = "general.open_location.last_url";
const nsISupportsString = Components.interfaces.nsISupportsString;
const Ci = Components.interfaces;
Components.utils.import("resource://gre/modules/PrivateBrowsingUtils.jsm");
this.EXPORTED_SYMBOLS = [ "OpenLocationLastURL" ];
var prefSvc = Components.classes["@mozilla.org/preferences-service;1"]
.getService(Components.interfaces.nsIPrefBranch);
var gOpenLocationLastURLData = "";
var 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 "last-pb-context-exited":
gOpenLocationLastURLData = "";
break;
case "browser:purge-session-history":
prefSvc.clearUserPref(LAST_URL_PREF);
gOpenLocationLastURLData = "";
break;
}
}
};
var os = Components.classes["@mozilla.org/observer-service;1"]
.getService(Components.interfaces.nsIObserverService);
os.addObserver(observer, "last-pb-context-exited", true);
os.addObserver(observer, "browser:purge-session-history", true);
this.OpenLocationLastURL = function OpenLocationLastURL(aWindow) {
this.window = aWindow;
}
OpenLocationLastURL.prototype = {
isPrivate: function OpenLocationLastURL_isPrivate() {
// Assume not in private browsing mode, unless the browser window is
// in private mode.
if (!this.window)
return false;
return PrivateBrowsingUtils.isWindowPrivate(this.window);
},
get value() {
if (this.isPrivate())
return gOpenLocationLastURLData;
else {
try {
return prefSvc.getComplexValue(LAST_URL_PREF, nsISupportsString).data;
}
catch (e) {
return "";
}
}
},
set value(val) {
if (typeof val != "string")
val = "";
if (this.isPrivate())
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() {
prefSvc.clearUserPref(LAST_URL_PREF);
gOpenLocationLastURLData = "";
}
};
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