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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_TSF_H_ | |
6 #define UI_BASE_IME_INPUT_METHOD_TSF_H_ | |
7 | |
8 #include <windows.h> | |
9 | |
10 #include <string> | |
11 | |
12 #include "base/memory/scoped_ptr.h" | |
13 #include "ui/base/ime/input_method_win.h" | |
14 | |
15 namespace ui { | |
16 | |
17 class TSFEventRouter; | |
18 | |
19 // An InputMethod implementation based on Windows TSF API. | |
20 class UI_BASE_EXPORT InputMethodTSF : public InputMethodWin { | |
21 public: | |
22 InputMethodTSF(internal::InputMethodDelegate* delegate, | |
23 HWND toplevel_window_handle); | |
24 virtual ~InputMethodTSF(); | |
25 | |
26 // Overridden from InputMethod: | |
27 virtual void OnFocus() OVERRIDE; | |
28 virtual void OnBlur() OVERRIDE; | |
29 virtual bool OnUntranslatedIMEMessage(const base::NativeEvent& event, | |
30 NativeEventResult* result) OVERRIDE; | |
31 virtual void OnTextInputTypeChanged(const TextInputClient* client) OVERRIDE; | |
32 virtual void OnCaretBoundsChanged(const TextInputClient* client) OVERRIDE; | |
33 virtual void CancelComposition(const TextInputClient* client) OVERRIDE; | |
34 virtual void DetachTextInputClient(TextInputClient* client) OVERRIDE; | |
35 virtual bool IsCandidatePopupOpen() const OVERRIDE; | |
36 | |
37 // Overridden from InputMethodBase: | |
38 virtual void OnWillChangeFocusedClient(TextInputClient* focused_before, | |
39 TextInputClient* focused) OVERRIDE; | |
40 virtual void OnDidChangeFocusedClient(TextInputClient* focused_before, | |
41 TextInputClient* focused) OVERRIDE; | |
42 | |
43 private: | |
44 class TSFEventObserver; | |
45 | |
46 // Asks the client to confirm current composition text. | |
47 void ConfirmCompositionText(); | |
48 | |
49 // TSF event router and observer. | |
50 scoped_ptr<TSFEventObserver> tsf_event_observer_; | |
51 scoped_ptr<TSFEventRouter> tsf_event_router_; | |
52 | |
53 DISALLOW_COPY_AND_ASSIGN(InputMethodTSF); | |
54 }; | |
55 | |
56 } // namespace ui | |
57 | |
58 #endif // UI_BASE_IME_INPUT_METHOD_TSF_H_ | |
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