chrome/browser/ui/ash/multi_user/multi_user_window_manager.cc

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/browser/ui/ash/multi_user/multi_user_window_manager.h"
   6
   7 #include "base/logging.h"
   8 #include "chrome/browser/ui/ash/multi_user/multi_user_window_manager_stub.h"
   9
  10 #if defined(OS_CHROMEOS)
  11 #include "ash/ash_switches.h"
  12 #include "ash/multi_profile_uma.h"
  13 #include "ash/session_state_delegate.h"
  14 #include "ash/shell.h"
  15 #include "ash/shell_delegate.h"
  16 #include "chrome/browser/ui/ash/multi_user/multi_user_window_manager_chromeos.h"
  17 #endif
  18
  19 namespace {
  20 chrome::MultiUserWindowManager* g_instance = NULL;
  21 }  // namespace
  22
  23 namespace chrome {
  24
  25 // Caching the current multi profile mode to avoid expensive detection
  26 // operations.
  27 chrome::MultiUserWindowManager::MultiProfileMode
  28     chrome::MultiUserWindowManager::multi_user_mode_ =
  29         chrome::MultiUserWindowManager::MULTI_PROFILE_MODE_UNINITIALIZED;
  30
  31 // static
  32 MultiUserWindowManager* MultiUserWindowManager::GetInstance() {
  33   return g_instance;
  34 }
  35
  36 MultiUserWindowManager* MultiUserWindowManager::CreateInstance() {
  37   DCHECK(!g_instance);
  38   multi_user_mode_ = MULTI_PROFILE_MODE_OFF;
  39 #if defined(OS_CHROMEOS)
  40   ash::MultiProfileUMA::SessionMode mode =
  41       ash::MultiProfileUMA::SESSION_SINGLE_USER_MODE;
  42   if (!g_instance &&
  43       ash::Shell::GetInstance()->delegate()->IsMultiProfilesEnabled()) {
  44     g_instance = new MultiUserWindowManagerChromeOS(
  45         ash::Shell::GetInstance()->session_state_delegate()->GetUserID(0));
  46     multi_user_mode_ = MULTI_PROFILE_MODE_SEPARATED;
  47     mode = ash::MultiProfileUMA::SESSION_SEPARATE_DESKTOP_MODE;
  48   } else if (ash::Shell::GetInstance()->delegate()->IsMultiProfilesEnabled()) {
  49     // The side by side mode is using the Single user window manager since all
  50     // windows are unmanaged side by side.
  51     multi_user_mode_ = MULTI_PROFILE_MODE_MIXED;
  52     mode = ash::MultiProfileUMA::SESSION_SIDE_BY_SIDE_MODE;
  53   }
  54   ash::MultiProfileUMA::RecordSessionMode(mode);
  55 #endif
  56   // If there was no instance created yet we create a dummy instance.
  57   if (!g_instance)
  58     g_instance = new MultiUserWindowManagerStub();
  59
  60   return g_instance;
  61 }
  62
  63 // static
  64 MultiUserWindowManager::MultiProfileMode
  65 MultiUserWindowManager::GetMultiProfileMode() {
  66   return multi_user_mode_;
  67 }
  68
  69 // static
  70 void MultiUserWindowManager::DeleteInstance() {
  71   DCHECK(g_instance);
  72   delete g_instance;
  73   g_instance = NULL;
  74   multi_user_mode_ = MULTI_PROFILE_MODE_UNINITIALIZED;
  75 }
  76
  77 void MultiUserWindowManager::SetInstanceForTest(
  78     MultiUserWindowManager* instance,
  79     MultiProfileMode mode) {
  80   if (g_instance)
  81     DeleteInstance();
  82   g_instance = instance;
  83   multi_user_mode_ = mode;
  84 }
  85
  86 }  // namespace chrome