| // Copyright 2013 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 CHROME_BROWSER_CHROMEOS_INPUT_METHOD_INPUT_METHOD_ENGINE_H_ |
| #define CHROME_BROWSER_CHROMEOS_INPUT_METHOD_INPUT_METHOD_ENGINE_H_ |
| |
| #include <map> |
| #include <string> |
| #include <vector> |
| #include "base/time/time.h" |
| #include "chrome/browser/chromeos/input_method/input_method_engine_interface.h" |
| #include "chromeos/ime/input_method_descriptor.h" |
| #include "url/gurl.h" |
| |
| namespace ui { |
| class CandidateWindow; |
| class KeyEvent; |
| } // namespace ui |
| |
| namespace ash { |
| namespace ime { |
| struct InputMethodMenuItem; |
| } // namespace ime |
| } // namespace ash |
| |
| namespace chromeos { |
| |
| class CompositionText; |
| |
| namespace input_method { |
| struct KeyEventHandle; |
| } // namespace input_method |
| |
| class InputMethodEngine : public InputMethodEngineInterface { |
| public: |
| InputMethodEngine(); |
| |
| virtual ~InputMethodEngine(); |
| |
| void Initialize(scoped_ptr<InputMethodEngineInterface::Observer> observer, |
| const char* engine_name, |
| const char* extension_id, |
| const char* engine_id, |
| const std::vector<std::string>& languages, |
| const std::vector<std::string>& layouts, |
| const GURL& options_page, |
| const GURL& input_view); |
| |
| // InputMethodEngineInterface overrides. |
| virtual const input_method::InputMethodDescriptor& GetDescriptor() |
| const OVERRIDE; |
| virtual void NotifyImeReady() OVERRIDE; |
| virtual bool SetComposition(int context_id, |
| const char* text, |
| int selection_start, |
| int selection_end, |
| int cursor, |
| const std::vector<SegmentInfo>& segments, |
| std::string* error) OVERRIDE; |
| virtual bool ClearComposition(int context_id, std::string* error) OVERRIDE; |
| virtual bool CommitText(int context_id, const char* text, |
| std::string* error) OVERRIDE; |
| virtual bool SendKeyEvents(int context_id, |
| const std::vector<KeyboardEvent>& events) OVERRIDE; |
| virtual const CandidateWindowProperty& |
| GetCandidateWindowProperty() const OVERRIDE; |
| virtual void SetCandidateWindowProperty( |
| const CandidateWindowProperty& property) OVERRIDE; |
| virtual bool SetCandidateWindowVisible(bool visible, |
| std::string* error) OVERRIDE; |
| virtual bool SetCandidates(int context_id, |
| const std::vector<Candidate>& candidates, |
| std::string* error) OVERRIDE; |
| virtual bool SetCursorPosition(int context_id, int candidate_id, |
| std::string* error) OVERRIDE; |
| virtual bool SetMenuItems(const std::vector<MenuItem>& items) OVERRIDE; |
| virtual bool UpdateMenuItems(const std::vector<MenuItem>& items) OVERRIDE; |
| virtual bool IsActive() const OVERRIDE; |
| virtual bool DeleteSurroundingText(int context_id, |
| int offset, |
| size_t number_of_chars, |
| std::string* error) OVERRIDE; |
| |
| // IMEEngineHandlerInterface overrides. |
| virtual void FocusIn( |
| const IMEEngineHandlerInterface::InputContext& input_context) OVERRIDE; |
| virtual void FocusOut() OVERRIDE; |
| virtual void Enable() OVERRIDE; |
| virtual void Disable() OVERRIDE; |
| virtual void PropertyActivate(const std::string& property_name) OVERRIDE; |
| virtual void Reset() OVERRIDE; |
| virtual void ProcessKeyEvent(const ui::KeyEvent& key_event, |
| const KeyEventDoneCallback& callback) OVERRIDE; |
| virtual void CandidateClicked(uint32 index) OVERRIDE; |
| virtual void SetSurroundingText(const std::string& text, uint32 cursor_pos, |
| uint32 anchor_pos) OVERRIDE; |
| virtual void HideInputView() OVERRIDE; |
| |
| private: |
| void RecordHistogram(const char* name, int count); |
| |
| // Converts MenuItem to InputMethodMenuItem. |
| void MenuItemToProperty(const MenuItem& item, |
| ash::ime::InputMethodMenuItem* property); |
| |
| // Enables or disables overriding input view page to Virtual Keyboard window. |
| void EnableInputView(bool enabled); |
| |
| // Descriptor of this input method. |
| input_method::InputMethodDescriptor descriptor_; |
| |
| ui::TextInputType current_input_type_; |
| |
| // True if this engine is active. |
| bool active_; |
| |
| // ID that is used for the current input context. False if there is no focus. |
| int context_id_; |
| |
| // Next id that will be assigned to a context. |
| int next_context_id_; |
| |
| // This IME ID in Chrome Extension. |
| std::string engine_id_; |
| |
| // This IME's Chrome Extension ID. |
| std::string extension_id_; |
| |
| // This IME ID in InputMethodManager. |
| std::string imm_id_; |
| |
| // The observer object recieving events for this IME. |
| scoped_ptr<InputMethodEngineInterface::Observer> observer_; |
| |
| // The current preedit text, and it's cursor position. |
| scoped_ptr<CompositionText> composition_text_; |
| int composition_cursor_; |
| |
| // The current candidate window. |
| scoped_ptr<ui::CandidateWindow> candidate_window_; |
| |
| // The current candidate window property. |
| CandidateWindowProperty candidate_window_property_; |
| |
| // Indicates whether the candidate window is visible. |
| bool window_visible_; |
| |
| // Mapping of candidate index to candidate id. |
| std::vector<int> candidate_ids_; |
| |
| // Mapping of candidate id to index. |
| std::map<int, int> candidate_indexes_; |
| |
| // Used for input view window. |
| GURL input_view_url_; |
| |
| // Used with SendKeyEvents and ProcessKeyEvent to check if the key event |
| // sent to ProcessKeyEvent is sent by SendKeyEvents. |
| const ui::KeyEvent* sent_key_event_; |
| |
| // The start & end time of using this input method. This is for UMA. |
| base::Time start_time_; |
| base::Time end_time_; |
| }; |
| |
| } // namespace chromeos |
| |
| #endif // CHROME_BROWSER_CHROMEOS_INPUT_METHOD_INPUT_METHOD_ENGINE_H_ |