michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
michael@0:  * You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: "use strict";
michael@0: 
michael@0: this.EXPORTED_SYMBOLS = ["RecentWindow"];
michael@0: 
michael@0: const Cu = Components.utils;
michael@0: 
michael@0: Cu.import("resource://gre/modules/Services.jsm");
michael@0: Cu.import("resource://gre/modules/PrivateBrowsingUtils.jsm");
michael@0: 
michael@0: #ifdef XP_UNIX
michael@0: #ifndef XP_MACOSX
michael@0: #define BROKEN_WM_Z_ORDER
michael@0: #endif
michael@0: #endif
michael@0: 
michael@0: this.RecentWindow = {
michael@0:   /*
michael@0:    * Get the most recent browser window.
michael@0:    *
michael@0:    * @param aOptions an object accepting the arguments for the search.
michael@0:    *        * private: true to restrict the search to private windows
michael@0:    *            only, false to restrict the search to non-private only.
michael@0:    *            Omit the property to search in both groups.
michael@0:    *        * allowPopups: true if popup windows are permissable.
michael@0:    */
michael@0:   getMostRecentBrowserWindow: function RW_getMostRecentBrowserWindow(aOptions) {
michael@0:     let checkPrivacy = typeof aOptions == "object" &&
michael@0:                        "private" in aOptions;
michael@0: 
michael@0:     let allowPopups = typeof aOptions == "object" && !!aOptions.allowPopups;
michael@0: 
michael@0:     function isSuitableBrowserWindow(win) {
michael@0:       return (!win.closed &&
michael@0:               (allowPopups || win.toolbar.visible) &&
michael@0:               (!checkPrivacy ||
michael@0:                PrivateBrowsingUtils.permanentPrivateBrowsing ||
michael@0:                PrivateBrowsingUtils.isWindowPrivate(win) == aOptions.private));
michael@0:     }
michael@0: 
michael@0: #ifdef BROKEN_WM_Z_ORDER
michael@0:     let win = Services.wm.getMostRecentWindow("navigator:browser");
michael@0: 
michael@0:     // if we're lucky, this isn't a popup, and we can just return this
michael@0:     if (win && !isSuitableBrowserWindow(win)) {
michael@0:       win = null;
michael@0:       let windowList = Services.wm.getEnumerator("navigator:browser");
michael@0:       // this is oldest to newest, so this gets a bit ugly
michael@0:       while (windowList.hasMoreElements()) {
michael@0:         let nextWin = windowList.getNext();
michael@0:         if (isSuitableBrowserWindow(nextWin))
michael@0:           win = nextWin;
michael@0:       }
michael@0:     }
michael@0:     return win;
michael@0: #else
michael@0:     let windowList = Services.wm.getZOrderDOMWindowEnumerator("navigator:browser", true);
michael@0:     while (windowList.hasMoreElements()) {
michael@0:       let win = windowList.getNext();
michael@0:       if (isSuitableBrowserWindow(win))
michael@0:         return win;
michael@0:     }
michael@0:     return null;
michael@0: #endif
michael@0:   }
michael@0: };
michael@0: