1 files changed, 39 insertions, 0 deletions
diff --git a/components/global/content/editMenuOverlay.js b/components/global/content/editMenuOverlay.js
new file mode 100644
index 000000000..a610b641a
--- /dev/null
+++ b/components/global/content/editMenuOverlay.js
@@ -0,0 +1,39 @@
+// -*- indent-tabs-mode: nil; js-indent-level: 2 -*-
+
+/* 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/. */
+
+// update menu items that rely on focus or on the current selection
+function goUpdateGlobalEditMenuItems()
+{
+  // Don't bother updating the edit commands if they aren't visible in any way
+  // (i.e. the Edit menu isn't open, nor is the context menu open, nor have the
+  // cut, copy, and paste buttons been added to the toolbars) for performance.
+  // This only works in applications/on platforms that set the gEditUIVisible
+  // flag, so we check to see if that flag is defined before using it.
+  if (typeof gEditUIVisible != "undefined" && !gEditUIVisible)
+    return;
+
+  goUpdateCommand("cmd_undo");
+  goUpdateCommand("cmd_redo");
+  goUpdateCommand("cmd_cut");
+  goUpdateCommand("cmd_copy");
+  goUpdateCommand("cmd_paste");
+  goUpdateCommand("cmd_selectAll");
+  goUpdateCommand("cmd_delete");
+  goUpdateCommand("cmd_switchTextDirection");
+}
+
+// update menu items that relate to undo/redo
+function goUpdateUndoEditMenuItems()
+{
+  goUpdateCommand("cmd_undo");
+  goUpdateCommand("cmd_redo");
+}
+
+// update menu items that depend on clipboard contents
+function goUpdatePasteMenuItems()
+{
+  goUpdateCommand("cmd_paste");
+}