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authorThomas Groman <tgroman@nuegia.net>2019-12-16 19:48:42 -0800
committerThomas Groman <tgroman@nuegia.net>2019-12-16 19:48:42 -0800
commit4492b5f8e774bf3b4f21e4e468fc052cbcbb468a (patch)
tree37970571a7dcbeb6b58c991ce718ce7001ac97d6 /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.
+ * * private: true to restrict the search to private windows
+ * only, false to restrict the search to non-private only.
+ * Omit the property to search in both groups.
+ * * allowPopups: true if popup windows are permissable.
+ */
+ getMostRecentBrowserWindow: function RW_getMostRecentBrowserWindow(aOptions) {
+ let checkPrivacy = typeof aOptions == "object" &&
+ "private" in aOptions;
+
+ let allowPopups = typeof aOptions == "object" && !!aOptions.allowPopups;
+
+ function isSuitableBrowserWindow(win) {
+ return (!win.closed &&
+ (allowPopups || win.toolbar.visible) &&
+ (!checkPrivacy ||
+ PrivateBrowsingUtils.permanentPrivateBrowsing ||
+ 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
+ }
+};
+