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       !ash::switches::UseFullMultiProfileMode()) {
  45     g_instance = new MultiUserWindowManagerChromeOS(
  46         ash::Shell::GetInstance()->session_state_delegate()->GetUserID(0));
  47     multi_user_mode_ = MULTI_PROFILE_MODE_SEPARATED;
  48     mode = ash::MultiProfileUMA::SESSION_SEPARATE_DESKTOP_MODE;
  49   } else if (ash::Shell::GetInstance()->delegate()->IsMultiProfilesEnabled()) {
  50     // The side by side mode is using the Single user window manager since all
  51     // windows are unmanaged side by side.
  52     multi_user_mode_ = MULTI_PROFILE_MODE_MIXED;
  53     mode = ash::MultiProfileUMA::SESSION_SIDE_BY_SIDE_MODE;
  54   }
  55   ash::MultiProfileUMA::RecordSessionMode(mode);
  56 #endif
  57   // If there was no instance created yet we create a dummy instance.
  58   if (!g_instance)
  59     g_instance = new MultiUserWindowManagerStub();
  60
  61   return g_instance;
  62 }
  63
  64 // static
  65 MultiUserWindowManager::MultiProfileMode
  66 MultiUserWindowManager::GetMultiProfileMode() {
  67   return multi_user_mode_;
  68 }
  69
  70 // static
  71 void MultiUserWindowManager::DeleteInstance() {
  72   DCHECK(g_instance);
  73   delete g_instance;
  74   g_instance = NULL;
  75   multi_user_mode_ = MULTI_PROFILE_MODE_UNINITIALIZED;
  76 }
  77
  78 void MultiUserWindowManager::SetInstanceForTest(
  79     MultiUserWindowManager* instance,
  80     MultiProfileMode mode) {
  81   if (g_instance)
  82     DeleteInstance();
  83   g_instance = instance;
  84   multi_user_mode_ = mode;
  85 }
  86
  87 }  // namespace chrome