| // Copyright (c) 2012 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_MANAGER_IMPL_H_ |
| #define CHROME_BROWSER_CHROMEOS_INPUT_METHOD_INPUT_METHOD_MANAGER_IMPL_H_ |
| |
| #include <map> |
| #include <string> |
| #include <vector> |
| |
| #include "base/memory/scoped_ptr.h" |
| #include "base/observer_list.h" |
| #include "base/threading/thread_checker.h" |
| #include "chrome/browser/chromeos/input_method/candidate_window_controller.h" |
| #include "chrome/browser/chromeos/input_method/input_method_util.h" |
| #include "chrome/browser/profiles/profile.h" |
| #include "chromeos/ime/input_method_manager.h" |
| #include "chromeos/ime/input_method_whitelist.h" |
| |
| namespace chromeos { |
| class ComponentExtensionIMEManager; |
| class ComponentExtensionIMEManagerDelegate; |
| class InputMethodEngine; |
| namespace input_method { |
| class InputMethodDelegate; |
| class ImeKeyboard; |
| |
| // The implementation of InputMethodManager. |
| class InputMethodManagerImpl : public InputMethodManager, |
| public CandidateWindowController::Observer { |
| public: |
| class StateImpl : public InputMethodManager::State { |
| public: |
| StateImpl(InputMethodManagerImpl* manager, Profile* profile); |
| |
| // Init new state as a copy of other. |
| void InitFrom(const StateImpl& other); |
| |
| // Returns true if (manager_->state_ == this). |
| bool IsActive() const; |
| |
| // Returns human-readable dump (for debug). |
| std::string Dump() const; |
| |
| // Adds new input method to given list if possible |
| bool EnableInputMethodImpl( |
| const std::string& input_method_id, |
| std::vector<std::string>* new_active_input_method_ids) const; |
| |
| // Returns true if |input_method_id| is in |active_input_method_ids|. |
| bool InputMethodIsActivated(const std::string& input_method_id) const; |
| |
| // If |current_input_methodid_| is not in |input_method_ids|, switch to |
| // input_method_ids[0]. If the ID is equal to input_method_ids[N], switch to |
| // input_method_ids[N+1]. |
| void SwitchToNextInputMethodInternal( |
| const std::vector<std::string>& input_method_ids, |
| const std::string& current_input_methodid); |
| |
| // Returns true if given input method requires pending extension. |
| bool MethodAwaitsExtensionLoad(const std::string& input_method_id) const; |
| |
| // InputMethodManager::State overrides. |
| virtual scoped_refptr<InputMethodManager::State> Clone() const override; |
| virtual void AddInputMethodExtension( |
| const std::string& extension_id, |
| const InputMethodDescriptors& descriptors, |
| InputMethodEngineInterface* instance) override; |
| virtual void RemoveInputMethodExtension( |
| const std::string& extension_id) override; |
| virtual void ChangeInputMethod(const std::string& input_method_id, |
| bool show_message) override; |
| virtual bool EnableInputMethod( |
| const std::string& new_active_input_method_id) override; |
| virtual void EnableLoginLayouts( |
| const std::string& language_code, |
| const std::vector<std::string>& initial_layouts) override; |
| virtual void EnableLockScreenLayouts() override; |
| virtual void GetInputMethodExtensions( |
| InputMethodDescriptors* result) override; |
| virtual scoped_ptr<InputMethodDescriptors> GetActiveInputMethods() |
| const override; |
| virtual const std::vector<std::string>& GetActiveInputMethodIds() |
| const override; |
| virtual const InputMethodDescriptor* GetInputMethodFromId( |
| const std::string& input_method_id) const override; |
| virtual size_t GetNumActiveInputMethods() const override; |
| virtual void SetEnabledExtensionImes( |
| std::vector<std::string>* ids) override; |
| virtual void SetInputMethodLoginDefault() override; |
| virtual void SetInputMethodLoginDefaultFromVPD( |
| const std::string& locale, |
| const std::string& layout) override; |
| virtual bool SwitchToNextInputMethod() override; |
| virtual bool SwitchToPreviousInputMethod( |
| const ui::Accelerator& accelerator) override; |
| virtual bool SwitchInputMethod(const ui::Accelerator& accelerator) override; |
| virtual InputMethodDescriptor GetCurrentInputMethod() const override; |
| virtual bool ReplaceEnabledInputMethods( |
| const std::vector<std::string>& new_active_input_method_ids) override; |
| |
| // ------------------------- Data members. |
| Profile* const profile; |
| |
| // The input method which was/is selected. |
| InputMethodDescriptor previous_input_method; |
| InputMethodDescriptor current_input_method; |
| |
| // The active input method ids cache. |
| std::vector<std::string> active_input_method_ids; |
| |
| // The pending input method id for delayed 3rd party IME enabling. |
| std::string pending_input_method_id; |
| |
| // The list of enabled extension IMEs. |
| std::vector<std::string> enabled_extension_imes; |
| |
| // Extra input methods that have been explicitly added to the menu, such as |
| // those created by extension. |
| std::map<std::string, InputMethodDescriptor> extra_input_methods; |
| |
| private: |
| InputMethodManagerImpl* const manager_; |
| |
| protected: |
| friend base::RefCounted<chromeos::input_method::InputMethodManager::State>; |
| virtual ~StateImpl(); |
| }; |
| |
| // Constructs an InputMethodManager instance. The client is responsible for |
| // calling |SetUISessionState| in response to relevant changes in browser |
| // state. |
| InputMethodManagerImpl(scoped_ptr<InputMethodDelegate> delegate, |
| bool enable_extension_loading); |
| virtual ~InputMethodManagerImpl(); |
| |
| // Receives notification of an InputMethodManager::UISessionState transition. |
| void SetUISessionState(UISessionState new_ui_session); |
| |
| // InputMethodManager override: |
| virtual UISessionState GetUISessionState() override; |
| virtual void AddObserver(InputMethodManager::Observer* observer) override; |
| virtual void AddCandidateWindowObserver( |
| InputMethodManager::CandidateWindowObserver* observer) override; |
| virtual void RemoveObserver(InputMethodManager::Observer* observer) override; |
| virtual void RemoveCandidateWindowObserver( |
| InputMethodManager::CandidateWindowObserver* observer) override; |
| virtual scoped_ptr<InputMethodDescriptors> |
| GetSupportedInputMethods() const override; |
| virtual void ActivateInputMethodMenuItem(const std::string& key) override; |
| virtual bool IsISOLevel5ShiftUsedByCurrentInputMethod() const override; |
| virtual bool IsAltGrUsedByCurrentInputMethod() const override; |
| |
| virtual ImeKeyboard* GetImeKeyboard() override; |
| virtual InputMethodUtil* GetInputMethodUtil() override; |
| virtual ComponentExtensionIMEManager* |
| GetComponentExtensionIMEManager() override; |
| virtual bool IsLoginKeyboard(const std::string& layout) const override; |
| |
| virtual bool MigrateInputMethods( |
| std::vector<std::string>* input_method_ids) override; |
| |
| virtual scoped_refptr<InputMethodManager::State> CreateNewState( |
| Profile* profile) override; |
| |
| virtual scoped_refptr<InputMethodManager::State> GetActiveIMEState() override; |
| virtual void SetState( |
| scoped_refptr<InputMethodManager::State> state) override; |
| |
| // Sets |candidate_window_controller_|. |
| void SetCandidateWindowControllerForTesting( |
| CandidateWindowController* candidate_window_controller); |
| // Sets |keyboard_|. |
| void SetImeKeyboardForTesting(ImeKeyboard* keyboard); |
| // Initialize |component_extension_manager_|. |
| void InitializeComponentExtensionForTesting( |
| scoped_ptr<ComponentExtensionIMEManagerDelegate> delegate); |
| |
| private: |
| friend class InputMethodManagerImplTest; |
| |
| // CandidateWindowController::Observer overrides: |
| virtual void CandidateClicked(int index) override; |
| virtual void CandidateWindowOpened() override; |
| virtual void CandidateWindowClosed() override; |
| |
| // Temporarily deactivates all input methods (e.g. Chinese, Japanese, Arabic) |
| // since they are not necessary to input a login password. Users are still |
| // able to use/switch active keyboard layouts (e.g. US qwerty, US dvorak, |
| // French). |
| void OnScreenLocked(); |
| |
| // Resumes the original state by activating input methods and/or changing the |
| // current input method as needed. |
| void OnScreenUnlocked(); |
| |
| // Returns true if the given input method config value is a string list |
| // that only contains an input method ID of a keyboard layout. |
| bool ContainsOnlyKeyboardLayout(const std::vector<std::string>& value); |
| |
| // Creates and initializes |candidate_window_controller_| if it hasn't been |
| // done. |
| void MaybeInitializeCandidateWindowController(); |
| |
| // Returns Input Method that best matches given id. |
| const InputMethodDescriptor* LookupInputMethod( |
| const std::string& input_method_id, |
| StateImpl* state); |
| |
| // Change system input method. |
| void ChangeInputMethodInternal(const InputMethodDescriptor& descriptor, |
| bool show_message, |
| bool notify_menu); |
| |
| // Loads necessary component extensions. |
| // TODO(nona): Support dynamical unloading. |
| void LoadNecessaryComponentExtensions(StateImpl* state); |
| |
| // Starts or stops the system input method framework as needed. |
| // (after list of enabled input methods has been updated). |
| // If state is active, active input method is updated. |
| void ReconfigureIMFramework(StateImpl* state); |
| |
| // Record input method usage histograms. |
| void RecordInputMethodUsage(std::string input_method_id); |
| |
| scoped_ptr<InputMethodDelegate> delegate_; |
| |
| // The current UI session status. |
| UISessionState ui_session_; |
| |
| // A list of objects that monitor the manager. |
| ObserverList<InputMethodManager::Observer> observers_; |
| ObserverList<CandidateWindowObserver> candidate_window_observers_; |
| |
| scoped_refptr<StateImpl> state_; |
| |
| // The candidate window. This will be deleted when the APP_TERMINATING |
| // message is sent. |
| scoped_ptr<CandidateWindowController> candidate_window_controller_; |
| |
| // An object which provides miscellaneous input method utility functions. Note |
| // that |util_| is required to initialize |keyboard_|. |
| InputMethodUtil util_; |
| |
| // An object which provides component extension ime management functions. |
| scoped_ptr<ComponentExtensionIMEManager> component_extension_ime_manager_; |
| |
| // An object for switching XKB layouts and keyboard status like caps lock and |
| // auto-repeat interval. |
| scoped_ptr<ImeKeyboard> keyboard_; |
| |
| |
| // Whether load IME extensions. |
| bool enable_extension_loading_; |
| |
| // The engine map from extension_id to an engine. |
| typedef std::map<std::string, InputMethodEngineInterface*> EngineMap; |
| EngineMap engine_map_; |
| |
| // The map from input method id to the input method stat id. |
| // The stat id has the format: <category#><first char after prefix><index> |
| // For example, Chinese Simplified Pinyin IME has the stat id: |
| // 2,'p',1 -> 211201 |
| // 2 means it in INPUT_METHOD_CATEGORY_ZH; |
| // 112 means the first char after prefix is 'p' of 'pinyin'; |
| // 01 means it's the second pinyin as the first pinyin is for Traditional |
| // Chinese Pinyin IME. Note "zh-hant-t-i0-pinyin" < "zh-t-i0-pinyin". |
| std::map<std::string, int> stat_id_map_; |
| |
| DISALLOW_COPY_AND_ASSIGN(InputMethodManagerImpl); |
| }; |
| |
| } // namespace input_method |
| } // namespace chromeos |
| |
| #endif // CHROME_BROWSER_CHROMEOS_INPUT_METHOD_INPUT_METHOD_MANAGER_IMPL_H_ |