Wallpaper manager backend APIs

chrome/browser/chromeos/login/wallpaper_manager.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/wallpaper_manager.h"
 
-#include "ash/desktop_background/desktop_background_resources.h"
+#include "ash/desktop_background/desktop_background_controller.h"
+#include "ash/shell.h"
 #include "base/logging.h"
 #include "base/time.h"
 #include "base/values.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chromeos/cros_settings.h"
 #include "chrome/browser/chromeos/login/user.h"
 #include "chrome/browser/chromeos/login/user_manager.h"
 #include "chrome/browser/chromeos/login/user_manager_impl.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chromeos/dbus/dbus_thread_manager.h"
 #include "chromeos/dbus/power_manager_client.h"
 
 namespace {
 const int kWallpaperUpdateIntervalSec = 24 * 60 * 60;
 }  // namespace
 
 namespace chromeos {
 
 static WallpaperManager* g_wallpaper_manager = NULL;
 
-WallpaperManager::WallpaperManager() : last_selected_user_("") {
+WallpaperManager::WallpaperManager()
+    : ALLOW_THIS_IN_INITIALIZER_LIST(image_loader_(new UserImageLoader)),
+      last_selected_user_("") {
   system::TimezoneSettings::GetInstance()->AddObserver(this);
   RestartTimer();
 }
 
 WallpaperManager::~WallpaperManager() {
   DBusThreadManager::Get()->GetPowerManagerClient()->RemoveObserver(this);
   system::TimezoneSettings::GetInstance()->RemoveObserver(this);
 }
 
 void WallpaperManager::SetLastSelectedUser(std::string last_selected_user) {
@@ skipping 14 matching lines @@
     BatchUpdateWallpaper();
   } else {
     // Set up a one shot timer which will batch update wallpaper at midnight.
     timer_.Start(FROM_HERE,
                  base::TimeDelta::FromSeconds(remaining_seconds),
                  this,
                  &WallpaperManager::BatchUpdateWallpaper);
   }
 }
 
+void WallpaperManager::SetWallpaperFromFile(std::string email,
+                                            const std::string& path,
+                                            ash::WallpaperLayout layout) {
+  image_loader_->Start(
+      path, 0, false,
+      base::Bind(&WallpaperManager::OnCustomWallpaperLoaded,
+                 base::Unretained(this), email, layout));
+}
+
 void WallpaperManager::TimezoneChanged(const icu::TimeZone& timezone) {
   RestartTimer();
 }
 
 void WallpaperManager::SystemResumed() {
   BatchUpdateWallpaper();
 }
 
+void WallpaperManager::OnCustomWallpaperLoaded(const std::string& email,
+                                               ash::WallpaperLayout layout,
+                                               const UserImage& user_image) {
+  const SkBitmap& wallpaper = user_image.image();
+  ash::Shell::GetInstance()->desktop_background_controller()->
+      SetCustomWallpaper(wallpaper, layout);
+}
+
 void WallpaperManager::BatchUpdateWallpaper() {
   PrefService* local_state = g_browser_process->local_state();
   UserManager* user_manager = UserManager::Get();
   bool show_users = true;
   CrosSettings::Get()->GetBoolean(
       kAccountsPrefShowUserNamesOnSignIn, &show_users);
   if (local_state) {
     User::WallpaperType type;
     int index = 0;
     base::Time last_modification_date;
@@ skipping 28 matching lines @@
 }
 
 // static
 WallpaperManager* WallpaperManager::Get() {
   if(!g_wallpaper_manager)
     g_wallpaper_manager = new WallpaperManager();
   return g_wallpaper_manager;
 }
 
 }  // chromeos