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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef UI_BASE_IME_INPUT_METHOD_CHROMEOS_H_ | 5 #ifndef UI_BASE_IME_INPUT_METHOD_CHROMEOS_H_ |
6 #define UI_BASE_IME_INPUT_METHOD_CHROMEOS_H_ | 6 #define UI_BASE_IME_INPUT_METHOD_CHROMEOS_H_ |
7 | 7 |
8 #include <set> | 8 #include <set> |
9 #include <string> | 9 #include <string> |
10 | 10 |
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25 public chromeos::IMEInputContextHandlerInterface { | 25 public chromeos::IMEInputContextHandlerInterface { |
26 public: | 26 public: |
27 explicit InputMethodChromeOS(internal::InputMethodDelegate* delegate); | 27 explicit InputMethodChromeOS(internal::InputMethodDelegate* delegate); |
28 ~InputMethodChromeOS() override; | 28 ~InputMethodChromeOS() override; |
29 | 29 |
30 // Overridden from InputMethod: | 30 // Overridden from InputMethod: |
31 void OnFocus() override; | 31 void OnFocus() override; |
32 void OnBlur() override; | 32 void OnBlur() override; |
33 bool OnUntranslatedIMEMessage(const base::NativeEvent& event, | 33 bool OnUntranslatedIMEMessage(const base::NativeEvent& event, |
34 NativeEventResult* result) override; | 34 NativeEventResult* result) override; |
35 bool DispatchKeyEvent(const ui::KeyEvent& event) override; | 35 void DispatchKeyEvent(ui::KeyEvent* event) override; |
36 void OnTextInputTypeChanged(const TextInputClient* client) override; | 36 void OnTextInputTypeChanged(const TextInputClient* client) override; |
37 void OnCaretBoundsChanged(const TextInputClient* client) override; | 37 void OnCaretBoundsChanged(const TextInputClient* client) override; |
38 void CancelComposition(const TextInputClient* client) override; | 38 void CancelComposition(const TextInputClient* client) override; |
39 void OnInputLocaleChanged() override; | 39 void OnInputLocaleChanged() override; |
40 std::string GetInputLocale() override; | 40 std::string GetInputLocale() override; |
41 bool IsCandidatePopupOpen() const override; | 41 bool IsCandidatePopupOpen() const override; |
42 | 42 |
43 protected: | 43 protected: |
44 // Converts |text| into CompositionText. | 44 // Converts |text| into CompositionText. |
45 void ExtractCompositionText(const chromeos::CompositionText& text, | 45 void ExtractCompositionText(const chromeos::CompositionText& text, |
46 uint32 cursor_position, | 46 uint32 cursor_position, |
47 CompositionText* out_composition) const; | 47 CompositionText* out_composition) const; |
48 | 48 |
49 // Process a key returned from the input method. | 49 // Process a key returned from the input method. |
50 virtual void ProcessKeyEventPostIME(const ui::KeyEvent& event, | 50 virtual void ProcessKeyEventPostIME(ui::KeyEvent* event, |
51 bool handled); | 51 bool handled); |
52 | 52 |
53 // Resets context and abandon all pending results and key events. | 53 // Resets context and abandon all pending results and key events. |
54 void ResetContext(); | 54 void ResetContext(); |
55 | 55 |
56 private: | 56 private: |
57 class PendingKeyEvent; | 57 class PendingKeyEvent; |
58 | 58 |
59 // Overridden from InputMethodBase: | 59 // Overridden from InputMethodBase: |
60 void OnWillChangeFocusedClient(TextInputClient* focused_before, | 60 void OnWillChangeFocusedClient(TextInputClient* focused_before, |
61 TextInputClient* focused) override; | 61 TextInputClient* focused) override; |
62 void OnDidChangeFocusedClient(TextInputClient* focused_before, | 62 void OnDidChangeFocusedClient(TextInputClient* focused_before, |
63 TextInputClient* focused) override; | 63 TextInputClient* focused) override; |
64 | 64 |
65 // Asks the client to confirm current composition text. | 65 // Asks the client to confirm current composition text. |
66 void ConfirmCompositionText(); | 66 void ConfirmCompositionText(); |
67 | 67 |
68 // Checks the availability of focused text input client and update focus | 68 // Checks the availability of focused text input client and update focus |
69 // state. | 69 // state. |
70 void UpdateContextFocusState(); | 70 void UpdateContextFocusState(); |
71 | 71 |
72 // Processes a key event that was already filtered by the input method. | 72 // Processes a key event that was already filtered by the input method. |
73 // A VKEY_PROCESSKEY may be dispatched to the EventTargets. | 73 // A VKEY_PROCESSKEY may be dispatched to the EventTargets. |
74 // It returns the result of whether the event has been stopped propagation | 74 // It returns the result of whether the event has been stopped propagation |
75 // when dispatching post IME. | 75 // when dispatching post IME. |
76 bool ProcessFilteredKeyPressEvent(const ui::KeyEvent& event); | 76 void ProcessFilteredKeyPressEvent(ui::KeyEvent* event); |
77 | 77 |
78 // Processes a key event that was not filtered by the input method. | 78 // Processes a key event that was not filtered by the input method. |
79 void ProcessUnfilteredKeyPressEvent(const ui::KeyEvent& event); | 79 void ProcessUnfilteredKeyPressEvent(ui::KeyEvent* event); |
80 | 80 |
81 // Sends input method result caused by the given key event to the focused text | 81 // Sends input method result caused by the given key event to the focused text |
82 // input client. | 82 // input client. |
83 void ProcessInputMethodResult(const ui::KeyEvent& event, bool filtered); | 83 void ProcessInputMethodResult(ui::KeyEvent* event, bool filtered); |
84 | 84 |
85 // Checks if the pending input method result needs inserting into the focused | 85 // Checks if the pending input method result needs inserting into the focused |
86 // text input client as a single character. | 86 // text input client as a single character. |
87 bool NeedInsertChar() const; | 87 bool NeedInsertChar() const; |
88 | 88 |
89 // Checks if there is pending input method result. | 89 // Checks if there is pending input method result. |
90 bool HasInputMethodResult() const; | 90 bool HasInputMethodResult() const; |
91 | 91 |
92 // Sends a fake key event for IME composing without physical key events. | 92 // Sends a fake key event for IME composing without physical key events. |
93 void SendFakeProcessKeyEvent(bool pressed) const; | 93 // Returns true if the faked key event is stopped propagation. |
| 94 bool SendFakeProcessKeyEvent(bool pressed) const; |
94 | 95 |
95 // Passes keyevent and executes character composition if necessary. Returns | 96 // Passes keyevent and executes character composition if necessary. Returns |
96 // true if character composer comsumes key event. | 97 // true if character composer comsumes key event. |
97 bool ExecuteCharacterComposer(const ui::KeyEvent& event); | 98 bool ExecuteCharacterComposer(const ui::KeyEvent& event); |
98 | 99 |
99 // chromeos::IMEInputContextHandlerInterface overrides: | 100 // chromeos::IMEInputContextHandlerInterface overrides: |
100 void CommitText(const std::string& text) override; | 101 void CommitText(const std::string& text) override; |
101 void UpdateCompositionText(const chromeos::CompositionText& text, | 102 void UpdateCompositionText(const chromeos::CompositionText& text, |
102 uint32 cursor_pos, | 103 uint32 cursor_pos, |
103 bool visible) override; | 104 bool visible) override; |
104 void DeleteSurroundingText(int32 offset, uint32 length) override; | 105 void DeleteSurroundingText(int32 offset, uint32 length) override; |
105 | 106 |
106 // Hides the composition text. | 107 // Hides the composition text. |
107 void HidePreeditText(); | 108 void HidePreeditText(); |
108 | 109 |
109 // Callback function for IMEEngineHandlerInterface::ProcessKeyEvent. | 110 // Callback function for IMEEngineHandlerInterface::ProcessKeyEvent. |
110 void ProcessKeyEventDone(const ui::KeyEvent* event, bool is_handled); | 111 void ProcessKeyEventDone(ui::KeyEvent* event, bool is_handled); |
111 | 112 |
112 // Returns whether an non-password input field is focused. | 113 // Returns whether an non-password input field is focused. |
113 bool IsNonPasswordInputFieldFocused(); | 114 bool IsNonPasswordInputFieldFocused(); |
114 | 115 |
115 // Returns true if an text input field is focused. | 116 // Returns true if an text input field is focused. |
116 bool IsInputFieldFocused(); | 117 bool IsInputFieldFocused(); |
117 | 118 |
118 // Pending composition text generated by the current pending key event. | 119 // Pending composition text generated by the current pending key event. |
119 // It'll be sent to the focused text input client as soon as we receive the | 120 // It'll be sent to the focused text input client as soon as we receive the |
120 // processing result of the pending key event. | 121 // processing result of the pending key event. |
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144 | 145 |
145 // Used for making callbacks. | 146 // Used for making callbacks. |
146 base::WeakPtrFactory<InputMethodChromeOS> weak_ptr_factory_; | 147 base::WeakPtrFactory<InputMethodChromeOS> weak_ptr_factory_; |
147 | 148 |
148 DISALLOW_COPY_AND_ASSIGN(InputMethodChromeOS); | 149 DISALLOW_COPY_AND_ASSIGN(InputMethodChromeOS); |
149 }; | 150 }; |
150 | 151 |
151 } // namespace ui | 152 } // namespace ui |
152 | 153 |
153 #endif // UI_BASE_IME_INPUT_METHOD_CHROMEOS_H_ | 154 #endif // UI_BASE_IME_INPUT_METHOD_CHROMEOS_H_ |
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