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