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-rw-r--r--modules/openLocationLastURL.jsm85
1 files changed, 85 insertions, 0 deletions
diff --git a/modules/openLocationLastURL.jsm b/modules/openLocationLastURL.jsm
new file mode 100644
index 0000000..3f58db8
--- /dev/null
+++ b/modules/openLocationLastURL.jsm
@@ -0,0 +1,85 @@
+/* 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 = "";
+ }
+};