Support engine specific hotkey.

src/ibushotkey.c

 /* vim:set et sts=4: */
 /* IBus - The Input Bus
  * Copyright (C) 2008-2010 Peng Huang <shawn.p.huang@gmail.com>
  * Copyright (C) 2008-2010 Red Hat, Inc.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 484 matching lines @@
     }
 
     GQuark event = (GQuark) GPOINTER_TO_UINT (g_tree_lookup (priv->hotkeys, &hotkey));
 
     if (event != 0) {
         g_signal_emit (profile, profile_signals[TRIGGER], event, user_data);
     }
 
     return event;
 }
+
+GQuark
+ibus_hotkey_profile_lookup_hotkey (IBusHotkeyProfile *profile,
+                                   guint              keyval,
+                                   guint              modifiers)
+{
+    IBusHotkeyProfilePrivate *priv;
+    priv = IBUS_HOTKEY_PROFILE_GET_PRIVATE (profile);
+
+    IBusHotkey hotkey = {
+        .keyval = keyval,
+        .modifiers = modifiers & priv->mask,
+    };
+
+    return (GQuark) GPOINTER_TO_UINT (g_tree_lookup (priv->hotkeys, &hotkey));
+}