chrome/browser/chromeos/input_method/ refactoring [part 6 of 6]

chrome/browser/chromeos/login/screen_locker.cc

 // 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.
 
 #include "chrome/browser/chromeos/login/screen_locker.h"
 
 #include <string>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/lazy_instance.h"
 #include "base/memory/weak_ptr.h"
 #include "base/message_loop.h"
 #include "base/metrics/histogram.h"
 #include "base/string_util.h"
 #include "base/timer.h"
 #include "base/utf_string_conversions.h"
-#include "chrome/browser/chromeos/input_method/input_method_manager.h"
-#include "chrome/browser/chromeos/input_method/input_method_util.h"
-#include "chrome/browser/chromeos/input_method/xkeyboard.h"
-#include "chrome/browser/chromeos/language_preferences.h"
 #include "chrome/browser/chromeos/login/authenticator.h"
 #include "chrome/browser/chromeos/login/login_performer.h"
 #include "chrome/browser/chromeos/login/login_utils.h"
 #include "chrome/browser/chromeos/login/user_manager.h"
 #include "chrome/browser/chromeos/login/webui_screen_locker.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/signin/signin_manager.h"
 #include "chrome/browser/signin/signin_manager_factory.h"
 #include "chrome/browser/sync/profile_sync_service.h"
@@ skipping 52 matching lines @@
       }
 
       default:
         NOTREACHED();
     }
   }
 
   virtual void LockScreen() OVERRIDE {
     VLOG(1) << "In: ScreenLockObserver::LockScreen";
     if (session_started_) {
-      SetupInputMethodsForScreenLocker();
       chromeos::ScreenLocker::Show();
     } else {
       // If the user has not completed the sign in we will log them out. This
       // avoids complications with displaying the lock screen over the login
       // screen while remaining secure in the case that they walk away during
       // the signin steps. See crbug.com/112225 and crbug.com/110933.
       chromeos::DBusThreadManager::Get()->
           GetSessionManagerClient()->StopSession();
     }
   }
 
   virtual void UnlockScreen() OVERRIDE {
-    RestoreInputMethods();
     chromeos::ScreenLocker::Hide();
   }
 
   virtual void UnlockScreenFailed() OVERRIDE {
     chromeos::ScreenLocker::UnlockScreenFailed();
   }
 
  private:
-  // 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 SetupInputMethodsForScreenLocker() {
-    if (// The LockScreen function is also called when the OS is suspended, and
-        // in that case |saved_active_input_method_list_| might be non-empty.
-        saved_active_input_method_list_.empty()) {
-      chromeos::input_method::InputMethodManager* manager =
-          chromeos::input_method::InputMethodManager::GetInstance();
-
-      saved_previous_input_method_id_ = manager->GetPreviousInputMethod().id();
-      saved_current_input_method_id_ = manager->GetCurrentInputMethod().id();
-      scoped_ptr<chromeos::input_method::InputMethodDescriptors>
-          active_input_method_list(manager->GetActiveInputMethods());
-
-      const std::string hardware_keyboard_id =
-          manager->GetInputMethodUtil()->GetHardwareInputMethodId();
-      // We'll add the hardware keyboard if it's not included in
-      // |active_input_method_list| so that the user can always use the hardware
-      // keyboard on the screen locker.
-      bool should_add_hardware_keyboard = true;
-
-      chromeos::input_method::InputMethodConfigValue value;
-      value.type =
-          chromeos::input_method::InputMethodConfigValue::kValueTypeStringList;
-      for (size_t i = 0; i < active_input_method_list->size(); ++i) {
-        const std::string& input_method_id =
-            active_input_method_list->at(i).id();
-        saved_active_input_method_list_.push_back(input_method_id);
-        // Skip if it's not a keyboard layout.
-        if (!chromeos::input_method::InputMethodUtil::IsKeyboardLayout(
-                input_method_id))
-          continue;
-        value.string_list_value.push_back(input_method_id);
-        if (input_method_id == hardware_keyboard_id) {
-          should_add_hardware_keyboard = false;
-        }
-      }
-      if (should_add_hardware_keyboard) {
-        value.string_list_value.push_back(hardware_keyboard_id);
-      }
-      // We don't want to shut down the IME, even if the hardware layout is the
-      // only IME left.
-      manager->SetEnableAutoImeShutdown(false);
-      manager->SetEnableExtensionIMEs(false);
-      manager->SetInputMethodConfig(
-          chromeos::language_prefs::kGeneralSectionName,
-          chromeos::language_prefs::kPreloadEnginesConfigName,
-          value);
-    }
-  }
-
-  void RestoreInputMethods() {
-    if (!saved_active_input_method_list_.empty()) {
-      chromeos::input_method::InputMethodManager* manager =
-          chromeos::input_method::InputMethodManager::GetInstance();
-
-      chromeos::input_method::InputMethodConfigValue value;
-      value.type =
-          chromeos::input_method::InputMethodConfigValue::kValueTypeStringList;
-      value.string_list_value = saved_active_input_method_list_;
-      manager->SetEnableAutoImeShutdown(true);
-      manager->SetEnableExtensionIMEs(true);
-      manager->SetInputMethodConfig(
-          chromeos::language_prefs::kGeneralSectionName,
-          chromeos::language_prefs::kPreloadEnginesConfigName,
-          value);
-      // Send previous input method id first so Ctrl+space would work fine.
-      if (!saved_previous_input_method_id_.empty())
-        manager->ChangeInputMethod(saved_previous_input_method_id_);
-      if (!saved_current_input_method_id_.empty())
-        manager->ChangeInputMethod(saved_current_input_method_id_);
-
-      saved_previous_input_method_id_.clear();
-      saved_current_input_method_id_.clear();
-      saved_active_input_method_list_.clear();
-    }
-  }
-
   bool session_started_;
   content::NotificationRegistrar registrar_;
   std::string saved_previous_input_method_id_;
   std::string saved_current_input_method_id_;
   std::vector<std::string> saved_active_input_method_list_;
 
   DISALLOW_COPY_AND_ASSIGN(ScreenLockObserver);
 };
 
 static base::LazyInstance<ScreenLockObserver> g_screen_lock_observer =
@@ skipping 245 matching lines @@
   bool state = true;
   content::NotificationService::current()->Notify(
       chrome::NOTIFICATION_SCREEN_LOCK_STATE_CHANGED,
       content::Source<ScreenLocker>(this),
       content::Details<bool>(&state));
   DBusThreadManager::Get()->GetPowerManagerClient()->
       NotifyScreenLockCompleted();
 }
 
 }  // namespace chromeos