linux-aura: Supports Compose key with XIM.

chrome/browser/ui/libgtk2ui/x11_input_method_context_impl_gtk2.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_UI_LIBGTK2UI_X11_INPUT_METHOD_CONTEXT_IMPL_GTK2_H_
 #define CHROME_BROWSER_UI_LIBGTK2UI_X11_INPUT_METHOD_CONTEXT_IMPL_GTK2_H_
 
 #include "base/containers/hash_tables.h"
 #include "base/gtest_prod_util.h"
 #include "base/strings/string16.h"
 #include "ui/base/glib/glib_integers.h"
 #include "ui/base/glib/glib_signal.h"
 #include "ui/base/ime/linux/linux_input_method_context.h"
 #include "ui/gfx/rect.h"
 
+typedef struct _GdkDrawable GdkWindow;
 typedef struct _GtkIMContext GtkIMContext;
 
 namespace libgtk2ui {
 
 // An implementation of LinuxInputMethodContext which is based on X11 event loop
 // and uses GtkIMContext(gtk-immodule) as a bridge from/to underlying IMEs.
 class X11InputMethodContextImplGtk2 : public ui::LinuxInputMethodContext {
  public:
   explicit X11InputMethodContextImplGtk2(
       ui::LinuxInputMethodContextDelegate* delegate);
@@ skipping 27 matching lines @@
   // IME's input context used for TEXT_INPUT_TYPE_NONE and
   // TEXT_INPUT_TYPE_PASSWORD.
   GtkIMContext* gtk_context_simple_;
   // IME's input context used for the other text input types.
   GtkIMContext* gtk_multicontext_;
 
   // An alias to |gtk_context_simple_| or |gtk_multicontext_| depending on the
   // text input type.  Can be NULL when it's not focused.
   GtkIMContext* gtk_context_;
 
+  // Last set client window.
+  GdkWindow* gdk_last_set_client_window_;
+
   // Last known caret bounds relative to the screen coordinates.
   gfx::Rect last_caret_bounds_;
 
   // A set of hardware keycodes of modifier keys.
   base::hash_set<unsigned int> modifier_keycodes_;
 
   // The helper class to trap GTK+'s "commit" signal for direct input key
   // events.
   //
   // gtk_im_context_filter_keypress() emits "commit" signal in order to insert
@@ skipping 32 matching lines @@
 
   FRIEND_TEST_ALL_PREFIXES(X11InputMethodContextImplGtk2FriendTest,
                            GtkCommitSignalTrap);
 
   DISALLOW_COPY_AND_ASSIGN(X11InputMethodContextImplGtk2);
 };
 
 }  // namespace libgtk2ui
 
 #endif  // CHROME_BROWSER_UI_LIBGTK2UI_X11_INPUT_METHOD_CONTEXT_IMPL_GTK2_H_