We should switch the keyboard layout to the layout the user set according to

chrome/browser/chromeos/input_method/input_method_manager_impl.h

 // 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/ibus_controller.h"
+#include "chrome/browser/chromeos/input_method/input_method_manager_impl_ll.h"
 #include "chrome/browser/chromeos/input_method/input_method_util.h"
 #include "chromeos/ime/ibus_daemon_controller.h"
 #include "chromeos/ime/input_method_manager.h"
 #include "chromeos/ime/input_method_whitelist.h"
 
 namespace chromeos {
 class ComponentExtensionIMEManager;
 class ComponentExtensionIMEManagerDelegate;
 class InputMethodEngineIBus;
 namespace input_method {
@@ skipping 24 matching lines @@
   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 scoped_ptr<InputMethodDescriptors>
       GetActiveInputMethods() const OVERRIDE;
+  virtual const std::vector<std::string>& GetActiveInputMethodIds() const
+      OVERRIDE;
   virtual size_t GetNumActiveInputMethods() const OVERRIDE;
   virtual void EnableLayouts(const std::string& language_code,
                              const std::string& initial_layout) OVERRIDE;
   virtual bool EnableInputMethods(
       const std::vector<std::string>& new_active_input_method_ids) OVERRIDE;
+  virtual bool EnableInputMethod(const std::string& new_active_input_method_id)
+      OVERRIDE;
   virtual bool MigrateOldInputMethods(
       std::vector<std::string>* input_method_ids) OVERRIDE;
   virtual bool MigrateKoreanKeyboard(
       const std::string& keyboard_id,
       std::vector<std::string>* input_method_ids) OVERRIDE;
   virtual bool SetInputMethodConfig(
       const std::string& section,
       const std::string& config_name,
       const InputMethodConfigValue& value) OVERRIDE;
   virtual void ChangeInputMethod(const std::string& input_method_id) OVERRIDE;
@@ skipping 12 matching lines @@
   virtual bool SwitchToNextInputMethod() OVERRIDE;
   virtual bool SwitchToPreviousInputMethod() OVERRIDE;
   virtual bool SwitchInputMethod(const ui::Accelerator& accelerator) OVERRIDE;
   virtual InputMethodDescriptor GetCurrentInputMethod() const OVERRIDE;
   virtual InputMethodPropertyList
       GetCurrentInputMethodProperties() const OVERRIDE;
   virtual XKeyboard* GetXKeyboard() OVERRIDE;
   virtual InputMethodUtil* GetInputMethodUtil() OVERRIDE;
   virtual ComponentExtensionIMEManager*
       GetComponentExtensionIMEManager() OVERRIDE;
+  virtual bool IsFullLatinKeyboard(const std::string& layout) const OVERRIDE;
 
   // Sets |ibus_controller_|.
   void SetIBusControllerForTesting(IBusController* ibus_controller);
   // Sets |candidate_window_controller_|.
   void SetCandidateWindowControllerForTesting(
       CandidateWindowController* candidate_window_controller);
   // Sets |xkeyboard_|.
   void SetXKeyboardForTesting(XKeyboard* xkeyboard);
   // Initialize |component_extension_manager_|.
   void InitializeComponentExtensionForTesting(
@@ skipping 20 matching lines @@
 
   // Resumes the original state by activating input methods and/or changing the
   // current input method as needed.
   void OnScreenUnlocked();
 
   // Returns true if |input_method_id| is in |active_input_method_ids_|.
   bool InputMethodIsActivated(const std::string& input_method_id);
 
   // 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 ContainOnlyKeyboardLayout(const std::vector<std::string>& value);
+  bool ContainsOnlyKeyboardLayout(const std::vector<std::string>& value);
 
   // Returns true if the connection to ibus-daemon is established.
   bool IsIBusConnectionAlive();
 
   // Creates and initializes |candidate_window_controller_| if it hasn't been
   // done.
   void MaybeInitializeCandidateWindowController();
 
   // If |current_input_method_id_| 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_method_id);
 
   // Change system input method.
   // Returns true if the system input method is changed.
   bool ChangeInputMethodInternal(const std::string& input_method_id,
                                  bool show_message);
 
   // Called when the ComponentExtensionIMEManagerDelegate is initialized.
   void OnComponentExtensionInitialized(
       scoped_ptr<ComponentExtensionIMEManagerDelegate> delegate);
   void InitializeComponentExtension();
 
   // Loads necessary component extensions.
   // TODO(nona): Support dynamical unloading.
   void LoadNecessaryComponentExtensions();
 
+  // 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;
+
+  // Starts or stops the system input method framework as needed.
+  // (after list of enabled input methods has been updated)
+  void ReconfigureIMFramework();
+
   scoped_ptr<InputMethodDelegate> delegate_;
 
   // The current browser status.
   State state_;
 
   // A list of objects that monitor the manager.
   ObserverList<InputMethodManager::Observer> observers_;
   ObserverList<CandidateWindowObserver> candidate_window_observers_;
 
   // The input method which was/is selected.
@@ skipping 38 matching lines @@
   // An object for switching XKB layouts and keyboard status like caps lock and
   // auto-repeat interval.
   scoped_ptr<XKeyboard> xkeyboard_;
 
   std::string pending_input_method_;
 
   base::ThreadChecker thread_checker_;
 
   base::WeakPtrFactory<InputMethodManagerImpl> weak_ptr_factory_;
 
+  // Check if input method id allows full latin input (for entering passwords on
+  // login screen)
+  FullLatinKeyboardLayoutChecker full_latin_keyboard_checker;
+
   DISALLOW_COPY_AND_ASSIGN(InputMethodManagerImpl);
 };
 
 }  // namespace input_method
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_INPUT_METHOD_INPUT_METHOD_MANAGER_IMPL_H_