gecko/browser/modules/RecentWindow.jsm

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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/. */
"use strict";
this.EXPORTED_SYMBOLS = ["RecentWindow"];
const Cu = Components.utils;
Cu.import("resource://gre/modules/Services.jsm");
Cu.import("resource://gre/modules/PrivateBrowsingUtils.jsm");
#ifndef XP_WIN
#define BROKEN_WM_Z_ORDER
#endif
this.RecentWindow = {
/*
* Get the most recent browser window.
*
* @param aOptions an object accepting the arguments for the search.
* Set the private property to true in order to restrict the
* search to private windows only, or to false in order to
* restrict the search to non-private windows only. To search
* in both groups, don't specify the private property.
*/
getMostRecentBrowserWindow: function RW_getMostRecentBrowserWindow(aOptions) {
#ifdef MOZ_PER_WINDOW_PRIVATE_BROWSING
let checkPrivacy = typeof aOptions == "object" &&
"private" in aOptions;
#else
// In global PB builds, always ignore the requested privacy status
let checkPrivacy = false;
#endif
function isSuitableBrowserWindow(win) {
return (!win.closed &&
win.toolbar.visible &&
(!checkPrivacy ||
PrivateBrowsingUtils.isWindowPrivate(win) == aOptions.private));
}
#ifdef BROKEN_WM_Z_ORDER
let win = Services.wm.getMostRecentWindow("navigator:browser");
// if we're lucky, this isn't a popup, and we can just return this
if (win && !isSuitableBrowserWindow(win)) {
win = null;
let windowList = Services.wm.getEnumerator("navigator:browser");
// this is oldest to newest, so this gets a bit ugly
while (windowList.hasMoreElements()) {
let nextWin = windowList.getNext();
if (isSuitableBrowserWindow(nextWin))
win = nextWin;
}
}
return win;
#else
let windowList = Services.wm.getZOrderDOMWindowEnumerator("navigator:browser", true);
while (windowList.hasMoreElements()) {
let win = windowList.getNext();
if (isSuitableBrowserWindow(win))
return win;
}
return null;
#endif
}
};