src/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/shell.h"
   8 #include "ash/desktop_background/user_wallpaper_delegate.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/user.h"
  16 #include "chrome/browser/chromeos/login/user_manager.h"
  17 #include "chrome/browser/chromeos/login/wallpaper_manager.h"
  18 #include "chrome/browser/chromeos/login/wizard_controller.h"
  19 #include "chromeos/chromeos_switches.h"
  20 #include "chromeos/login/login_state.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       !CommandLine::ForCurrentProcess()->HasSwitch(
  30           switches::kFirstExecAfterBoot) ||
  31       WizardController::IsZeroDelayEnabled() ||
  32       !CommandLine::ForCurrentProcess()->HasSwitch(switches::kLoginManager)) {
  33     return true;
  34   }
  35
  36   return false;
  37 }
  38
  39 class UserWallpaperDelegate : public ash::UserWallpaperDelegate {
  40  public:
  41   UserWallpaperDelegate()
  42       : boot_animation_finished_(false),
  43         animation_duration_override_in_ms_(0) {
  44   }
  45
  46   virtual ~UserWallpaperDelegate() {
  47   }
  48
  49   virtual 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   virtual int GetAnimationDurationOverride() OVERRIDE {
  56     return animation_duration_override_in_ms_;
  57   }
  58
  59   virtual void SetAnimationDurationOverride(
  60       int animation_duration_in_ms) OVERRIDE {
  61     animation_duration_override_in_ms_ = animation_duration_in_ms;
  62   }
  63
  64   virtual bool ShouldShowInitialAnimation() OVERRIDE {
  65     if (IsNormalWallpaperChange() || boot_animation_finished_)
  66       return false;
  67
  68     // It is a first boot case now. If kDisableBootAnimation flag
  69     // is passed, it only disables any transition after OOBE.
  70     bool is_registered = StartupUtils::IsDeviceRegistered();
  71     const CommandLine* command_line = 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   virtual void UpdateWallpaper(bool clear_cache) OVERRIDE {
  81     chromeos::WallpaperManager::Get()->UpdateWallpaper(clear_cache);
  82   }
  83
  84   virtual void InitializeWallpaper() OVERRIDE {
  85     chromeos::WallpaperManager::Get()->InitializeWallpaper();
  86   }
  87
  88   virtual void OpenSetWallpaperPage() OVERRIDE {
  89     if (CanOpenSetWallpaperPage())
  90       wallpaper_manager_util::OpenWallpaperManager();
  91   }
  92
  93   virtual 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_LOCALLY_MANAGED) {
 106       return false;
 107     }
 108     const User* user = chromeos::UserManager::Get()->GetActiveUser();
 109     if (!user)
 110       return false;
 111     if (chromeos::WallpaperManager::Get()->IsPolicyControlled(user->email()))
 112       return false;
 113     return true;
 114   }
 115
 116   virtual void OnWallpaperAnimationFinished() OVERRIDE {
 117     content::NotificationService::current()->Notify(
 118         chrome::NOTIFICATION_WALLPAPER_ANIMATION_FINISHED,
 119         content::NotificationService::AllSources(),
 120         content::NotificationService::NoDetails());
 121   }
 122
 123   virtual void OnWallpaperBootAnimationFinished() OVERRIDE {
 124     // Make sure that boot animation type is used only once.
 125     boot_animation_finished_ = true;
 126   }
 127
 128  private:
 129   bool boot_animation_finished_;
 130
 131   // The animation duration to show a new wallpaper if an animation is required.
 132   int animation_duration_override_in_ms_;
 133
 134   DISALLOW_COPY_AND_ASSIGN(UserWallpaperDelegate);
 135 };
 136
 137 }  // namespace
 138
 139 ash::UserWallpaperDelegate* CreateUserWallpaperDelegate() {
 140   return new chromeos::UserWallpaperDelegate();
 141 }
 142
 143 }  // namespace chromeos