1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #ifndef UI_BASE_IME_INPUT_METHOD_WIN_H_
6 #define UI_BASE_IME_INPUT_METHOD_WIN_H_
12 #include "base/basictypes.h"
13 #include "base/compiler_specific.h"
14 #include "ui/base/ime/input_method_base.h"
15 #include "ui/base/ime/win/imm32_manager.h"
19 // A common InputMethod implementation shared between IMM32 and TSF.
20 class UI_EXPORT InputMethodWin : public InputMethodBase {
22 InputMethodWin(internal::InputMethodDelegate* delegate,
23 HWND toplevel_window_handle);
25 // Overridden from InputMethod:
26 virtual void Init(bool focused) OVERRIDE;
27 virtual bool DispatchKeyEvent(
28 const base::NativeEvent& native_key_event) OVERRIDE;
29 virtual bool DispatchFabricatedKeyEvent(const ui::KeyEvent& event) OVERRIDE;
30 virtual void OnInputLocaleChanged() OVERRIDE;
31 virtual std::string GetInputLocale() OVERRIDE;
32 virtual base::i18n::TextDirection GetInputTextDirection() OVERRIDE;
33 virtual bool IsActive() OVERRIDE;
36 // Some IMEs rely on WM_IME_REQUEST message even when TSF is enabled. So
37 // OnImeRequest (and its actual implementations as OnDocumentFeed,
38 // OnReconvertString, and OnQueryCharPosition) are placed in this base class.
39 LRESULT OnImeRequest(UINT message,
43 // For both WM_CHAR and WM_SYSCHAR
44 LRESULT OnChar(HWND window_handle,
49 // For both WM_DEADCHAR and WM_SYSDEADCHAR
50 // TODO(yukawa): Stop handling WM_DEADCHAR and WM_SYSDEADCHAR when non-Aura
51 // build is deprecated.
52 LRESULT OnDeadChar(UINT message, WPARAM wparam, LPARAM lparam, BOOL* handled);
54 LRESULT OnDocumentFeed(RECONVERTSTRING* reconv);
55 LRESULT OnReconvertString(RECONVERTSTRING* reconv);
56 LRESULT OnQueryCharPosition(IMECHARPOSITION* char_positon);
58 // Returns the window handle to which |text_input_client| is bound.
59 // On Aura environment, |toplevel_window_handle_| is always returned.
60 HWND GetAttachedWindowHandle(const TextInputClient* text_input_client) const;
62 // Returns true if the Win32 native window bound to |client| is considered
63 // to be ready for receiving keyboard input.
64 bool IsWindowFocused(const TextInputClient* client) const;
66 // Indicates if the current input locale has an IME.
69 // Windows IMM32 wrapper.
70 // (See "ui/base/ime/win/ime_input.h" for its details.)
71 ui::IMM32Manager imm32_manager_;
74 // The toplevel window handle.
75 // On non-Aura environment, this value is not used and always NULL.
76 const HWND toplevel_window_handle_;
78 // Name of the current input locale.
81 // The current input text direction.
82 base::i18n::TextDirection direction_;
84 // The new text direction and layout alignment requested by the user by
85 // pressing ctrl-shift. It'll be sent to the text input client when the key
87 base::i18n::TextDirection pending_requested_direction_;
89 DISALLOW_COPY_AND_ASSIGN(InputMethodWin);
94 #endif // UI_BASE_IME_INPUT_METHOD_WIN_H_