IME (input method editor) support for Aura, part 3 of 3: Use ui::InputMethod in ash.

ui/aura/desktop_host_win.h

 // Copyright (c) 2011 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 UI_AURA_DESKTOP_HOST_WIN_H_
 #define UI_AURA_DESKTOP_HOST_WIN_H_
 #pragma once
 
 #include "base/compiler_specific.h"
 #include "ui/aura/desktop_host.h"
+#include "ui/base/ime/input_method_delegate.h"
+#include "ui/base/ime/mock_input_method.h"
 #include "ui/base/win/window_impl.h"
 
 namespace aura {
 
-class DesktopHostWin : public DesktopHost, public ui::WindowImpl {
+class DesktopHostWin : public DesktopHost,
+                       public ui::internal::InputMethodDelegate,
+                       public ui::WindowImpl {
  public:
   explicit DesktopHostWin(const gfx::Rect& bounds);
   virtual ~DesktopHostWin();
 
   // MessageLoop::Dispatcher:
   virtual bool Dispatch(const MSG& msg);
 
   // DesktopHost:
   virtual void SetDesktop(Desktop* desktop) OVERRIDE;
   virtual gfx::AcceleratedWidget GetAcceleratedWidget() OVERRIDE;
   virtual void Show() OVERRIDE;
   virtual void ToggleFullScreen() OVERRIDE;
   virtual gfx::Size GetSize() const OVERRIDE;
   virtual void SetSize(const gfx::Size& size) OVERRIDE;
   virtual void SetCursor(gfx::NativeCursor cursor) OVERRIDE;
   virtual gfx::Point QueryMouseLocation() OVERRIDE;
+  virtual ui::InputMethod* GetInputMethod() OVERRIDE;
+
+  // ui::internal::InputMethodDelegate Override.
+  virtual void DispatchKeyEventPostIME(Event* event) OVERRIDE;
 
  private:
   BEGIN_MSG_MAP_EX(DesktopHostWin)
     // Range handlers must go first!
     MESSAGE_RANGE_HANDLER_EX(WM_MOUSEFIRST, WM_MOUSELAST, OnMouseRange)
     MESSAGE_RANGE_HANDLER_EX(WM_NCMOUSEMOVE, WM_NCXBUTTONDBLCLK, OnMouseRange)
 
     // Key events.
     MESSAGE_HANDLER_EX(WM_KEYDOWN, OnKeyEvent)
     MESSAGE_HANDLER_EX(WM_KEYUP, OnKeyEvent)
     MESSAGE_HANDLER_EX(WM_SYSKEYDOWN, OnKeyEvent)
     MESSAGE_HANDLER_EX(WM_SYSKEYUP, OnKeyEvent)
     MESSAGE_HANDLER_EX(WM_CHAR, OnKeyEvent)
     MESSAGE_HANDLER_EX(WM_SYSCHAR, OnKeyEvent)
     MESSAGE_HANDLER_EX(WM_IME_CHAR, OnKeyEvent)
 
     MSG_WM_CLOSE(OnClose)
     MSG_WM_PAINT(OnPaint)
     MSG_WM_SIZE(OnSize)
   END_MSG_MAP()
 
   void OnClose();
   LRESULT OnKeyEvent(UINT message, WPARAM w_param, LPARAM l_param);
   LRESULT OnMouseRange(UINT message, WPARAM w_param, LPARAM l_param);
   void OnPaint(HDC dc);
   void OnSize(UINT param, const CSize& size);
 
   Desktop* desktop_;
 
+  // TODO(yusukes): implement ui::InputMethodWin.
+  ui::MockInputMethod input_method_;
+
   bool fullscreen_;
   RECT saved_window_rect_;
   DWORD saved_window_style_;
   DWORD saved_window_ex_style_;
 
   DISALLOW_COPY_AND_ASSIGN(DesktopHostWin);
 };
 
 }  // namespace aura
 
 #endif  // UI_AURA_DESKTOP_HOST_WIN_H_