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| 1 // Copyright (c) 2013 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. | |
| 4 | |
| 5 #ifndef UI_BASE_IME_INPUT_METHOD_IMM32_H_ | |
| 6 #define UI_BASE_IME_INPUT_METHOD_IMM32_H_ | |
| 7 | |
| 8 #include <windows.h> | |
| 9 | |
| 10 #include <string> | |
| 11 | |
| 12 #include "base/basictypes.h" | |
| 13 #include "base/compiler_specific.h" | |
| 14 #include "ui/base/ime/input_method_win.h" | |
| 15 | |
| 16 namespace ui { | |
| 17 | |
| 18 // An InputMethod implementation based on Windows IMM32 API. | |
| 19 class UI_BASE_EXPORT InputMethodIMM32 : public InputMethodWin { | |
| 20 public: | |
| 21 InputMethodIMM32(internal::InputMethodDelegate* delegate, | |
| 22 HWND toplevel_window_handle); | |
| 23 | |
| 24 // Overridden from InputMethod: | |
| 25 virtual void OnFocus() OVERRIDE; | |
| 26 virtual void OnBlur() OVERRIDE; | |
| 27 virtual bool OnUntranslatedIMEMessage(const base::NativeEvent& event, | |
| 28 NativeEventResult* result) OVERRIDE; | |
| 29 virtual void OnTextInputTypeChanged(const TextInputClient* client) OVERRIDE; | |
| 30 virtual void OnCaretBoundsChanged(const TextInputClient* client) OVERRIDE; | |
| 31 virtual void CancelComposition(const TextInputClient* client) OVERRIDE; | |
| 32 virtual bool IsCandidatePopupOpen() const OVERRIDE; | |
| 33 | |
| 34 protected: | |
| 35 // Overridden from InputMethodBase: | |
| 36 virtual void OnWillChangeFocusedClient(TextInputClient* focused_before, | |
| 37 TextInputClient* focused) OVERRIDE; | |
| 38 virtual void OnDidChangeFocusedClient(TextInputClient* focused_before, | |
| 39 TextInputClient* focused) OVERRIDE; | |
| 40 | |
| 41 private: | |
| 42 LRESULT OnImeSetContext(HWND window_handle, | |
| 43 UINT message, | |
| 44 WPARAM wparam, | |
| 45 LPARAM lparam, | |
| 46 BOOL* handled); | |
| 47 LRESULT OnImeStartComposition(HWND window_handle, | |
| 48 UINT message, | |
| 49 WPARAM wparam, | |
| 50 LPARAM lparam, | |
| 51 BOOL* handled); | |
| 52 LRESULT OnImeComposition(HWND window_handle, | |
| 53 UINT message, | |
| 54 WPARAM wparam, | |
| 55 LPARAM lparam, | |
| 56 BOOL* handled); | |
| 57 LRESULT OnImeEndComposition(HWND window_handle, | |
| 58 UINT message, | |
| 59 WPARAM wparam, | |
| 60 LPARAM lparam, | |
| 61 BOOL* handled); | |
| 62 LRESULT OnImeNotify(UINT message, | |
| 63 WPARAM wparam, | |
| 64 LPARAM lparam, | |
| 65 BOOL* handled); | |
| 66 | |
| 67 // Asks the client to confirm current composition text. | |
| 68 void ConfirmCompositionText(); | |
| 69 | |
| 70 // Enables or disables the IME according to the current text input type. | |
| 71 void UpdateIMEState(); | |
| 72 | |
| 73 bool enabled_; | |
| 74 | |
| 75 // True if we know for sure that a candidate window is open. | |
| 76 bool is_candidate_popup_open_; | |
| 77 | |
| 78 // Window handle where composition is on-going. NULL when there is no | |
| 79 // composition. | |
| 80 HWND composing_window_handle_; | |
| 81 | |
| 82 DISALLOW_COPY_AND_ASSIGN(InputMethodIMM32); | |
| 83 }; | |
| 84 | |
| 85 } // namespace ui | |
| 86 | |
| 87 #endif // UI_BASE_IME_INPUT_METHOD_IMM32_H_ | |
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