chrome/browser/chromeos/background/ash_user_wallpaper_delegate.cc

   1 // Copyright (c) 2012 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/chromeos/background/ash_user_wallpaper_delegate.h"
   6
   7 #include "ash/desktop_background/user_wallpaper_delegate.h"
   8 #include "ash/shell.h"
   9 #include "ash/wm/window_animations.h"
  10 #include "base/command_line.h"
  11 #include "base/logging.h"
  12 #include "chrome/browser/chrome_notification_types.h"
  13 #include "chrome/browser/chromeos/extensions/wallpaper_manager_util.h"
  14 #include "chrome/browser/chromeos/login/startup_utils.h"
  15 #include "chrome/browser/chromeos/login/users/wallpaper/wallpaper_manager.h"
  16 #include "chrome/browser/chromeos/login/wizard_controller.h"
  17 #include "chromeos/chromeos_switches.h"
  18 #include "chromeos/login/login_state.h"
  19 #include "components/user_manager/user.h"
  20 #include "components/user_manager/user_manager.h"
  21 #include "content/public/browser/notification_service.h"
  22
  23 namespace chromeos {
  24
  25 namespace {
  26
  27 bool IsNormalWallpaperChange() {
  28   if (chromeos::LoginState::Get()->IsUserLoggedIn() ||
  29       !base::CommandLine::ForCurrentProcess()->HasSwitch(
  30           switches::kFirstExecAfterBoot) ||
  31       WizardController::IsZeroDelayEnabled() ||
  32       !base::CommandLine::ForCurrentProcess()->HasSwitch(
  33           switches::kLoginManager)) {
  34     return true;
  35   }
  36
  37   return false;
  38 }
  39
  40 class UserWallpaperDelegate : public ash::UserWallpaperDelegate {
  41  public:
  42   UserWallpaperDelegate()
  43       : boot_animation_finished_(false),
  44         animation_duration_override_in_ms_(0) {
  45   }
  46
  47   ~UserWallpaperDelegate() override {}
  48
  49   int GetAnimationType() override {
  50     return ShouldShowInitialAnimation() ?
  51         ash::WINDOW_VISIBILITY_ANIMATION_TYPE_BRIGHTNESS_GRAYSCALE :
  52         static_cast<int>(wm::WINDOW_VISIBILITY_ANIMATION_TYPE_FADE);
  53   }
  54
  55   int GetAnimationDurationOverride() override {
  56     return animation_duration_override_in_ms_;
  57   }
  58
  59   void SetAnimationDurationOverride(int animation_duration_in_ms) override {
  60     animation_duration_override_in_ms_ = animation_duration_in_ms;
  61   }
  62
  63   bool ShouldShowInitialAnimation() override {
  64     if (IsNormalWallpaperChange() || boot_animation_finished_)
  65       return false;
  66
  67     // It is a first boot case now. If kDisableBootAnimation flag
  68     // is passed, it only disables any transition after OOBE.
  69     bool is_registered = StartupUtils::IsDeviceRegistered();
  70     const base::CommandLine* command_line =
  71         base::CommandLine::ForCurrentProcess();
  72     bool disable_boot_animation = command_line->
  73         HasSwitch(switches::kDisableBootAnimation);
  74     if (is_registered && disable_boot_animation)
  75       return false;
  76
  77     return true;
  78   }
  79
  80   void UpdateWallpaper(bool clear_cache) override {
  81     chromeos::WallpaperManager::Get()->UpdateWallpaper(clear_cache);
  82   }
  83
  84   void InitializeWallpaper() override {
  85     chromeos::WallpaperManager::Get()->InitializeWallpaper();
  86   }
  87
  88   void OpenSetWallpaperPage() override {
  89     if (CanOpenSetWallpaperPage())
  90       wallpaper_manager_util::OpenWallpaperManager();
  91   }
  92
  93   bool CanOpenSetWallpaperPage() override {
  94     const LoginState* login_state = LoginState::Get();
  95     const LoginState::LoggedInUserType user_type =
  96         login_state->GetLoggedInUserType();
  97     if (!login_state->IsUserLoggedIn())
  98       return false;
  99
 100     // Whitelist user types that are allowed to change their wallpaper.  (Guest
 101     // users are not, see crosbug 26900.)
 102     if (user_type != LoginState::LOGGED_IN_USER_REGULAR &&
 103         user_type != LoginState::LOGGED_IN_USER_OWNER &&
 104         user_type != LoginState::LOGGED_IN_USER_PUBLIC_ACCOUNT &&
 105         user_type != LoginState::LOGGED_IN_USER_SUPERVISED) {
 106       return false;
 107     }
 108     const user_manager::User* user =
 109         user_manager::UserManager::Get()->GetActiveUser();
 110     if (!user)
 111       return false;
 112     if (chromeos::WallpaperManager::Get()->IsPolicyControlled(user->email()))
 113       return false;
 114     return true;
 115   }
 116
 117   void OnWallpaperAnimationFinished() override {
 118     content::NotificationService::current()->Notify(
 119         chrome::NOTIFICATION_WALLPAPER_ANIMATION_FINISHED,
 120         content::NotificationService::AllSources(),
 121         content::NotificationService::NoDetails());
 122   }
 123
 124   void OnWallpaperBootAnimationFinished() override {
 125     // Make sure that boot animation type is used only once.
 126     boot_animation_finished_ = true;
 127   }
 128
 129  private:
 130   bool boot_animation_finished_;
 131
 132   // The animation duration to show a new wallpaper if an animation is required.
 133   int animation_duration_override_in_ms_;
 134
 135   DISALLOW_COPY_AND_ASSIGN(UserWallpaperDelegate);
 136 };
 137
 138 }  // namespace
 139
 140 ash::UserWallpaperDelegate* CreateUserWallpaperDelegate() {
 141   return new chromeos::UserWallpaperDelegate();
 142 }
 143
 144 }  // namespace chromeos