If customization includes default wallpaper, download and apply it.

chrome/browser/chromeos/login/wallpaper_manager.h

 // Copyright (c) 2013 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_LOGIN_WALLPAPER_MANAGER_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_WALLPAPER_MANAGER_H_
 
 #include <deque>
 #include <string>
 #include <vector>
@@ skipping 54 matching lines @@
 // Directory names of custom wallpapers.
 extern const char kSmallWallpaperSubDir[];
 extern const char kLargeWallpaperSubDir[];
 extern const char kOriginalWallpaperSubDir[];
 extern const char kThumbnailWallpaperSubDir[];
 
 // This class maintains wallpapers for users who have logged into this Chrome
 // OS device.
 class WallpaperManager: public content::NotificationObserver {
  public:
+  class CustomizedWallpaperRescaledFiles;
+  class CustomizedWallpaperFilesExist;
+
   // For testing.
   class TestApi {
    public:
     explicit TestApi(WallpaperManager* wallpaper_manager);
     virtual ~TestApi();
 
     base::FilePath current_wallpaper_path();
 
     bool GetWallpaperFromCache(const std::string& user_id,
                                gfx::ImageSkia* image);
@@ skipping 137 matching lines @@
   // and |preferred_height| while maintaining aspect ratio.
   bool ResizeWallpaper(const UserImage& wallpaper,
                        ash::WallpaperLayout layout,
                        int preferred_width,
                        int preferred_height,
                        scoped_refptr<base::RefCountedBytes>* output) const;
 
   // Resizes |wallpaper| to a resolution which is nearest to |preferred_width|
   // and |preferred_height| while maintaining aspect ratio. And saves the
   // resized wallpaper to |path|.
-  void ResizeAndSaveWallpaper(const UserImage& wallpaper,
+  // Result is true on success.
+  bool ResizeAndSaveWallpaper(const UserImage& wallpaper,
                               const base::FilePath& path,
                               ash::WallpaperLayout layout,
                               int preferred_width,
                               int preferred_height) const;
 
   // Saves custom wallpaper to file, post task to generate thumbnail and updates
   // local state preferences. If |update_wallpaper| is false, don't change
   // wallpaper but only update cache.
   void SetCustomWallpaper(const std::string& user_id,
                           const std::string& user_id_hash,
@@ skipping 55 matching lines @@
 
   // Called when the wallpaper policy has been cleared for |user_id|.
   void OnPolicyCleared(const std::string& policy, const std::string& user_id);
 
   // Called when the policy-set wallpaper has been fetched.  Initiates decoding
   // of the JPEG |data| with a callback to SetPolicyControlledWallpaper().
   void OnPolicyFetched(const std::string& policy,
                        const std::string& user_id,
                        scoped_ptr<std::string> data);
 
+  // This is called from CustomizationDocument.
+  // scaled_directory - directory where resized versions are stored
+  // (must be writable)
+  void SetCustomizedDefaultWallpaper(const GURL& wallpaper_url,
+                                     const base::FilePath& downloaded_file,
+                                     const base::FilePath& resized_directory);
+
+  // These global default values are used to init customized default
+  // wallpaper in Desktop Background Controller before first wallpaper was
+  // shown.
+  static base::FilePath GetCustomizedWallpaperDefaultRescaledSmallFileName();
+  static base::FilePath GetCustomizedWallpaperDefaultRescaledLargeFileName();
+
+  // If DesktopBackgroundController should start with customized default
+  // wallpaper.
+  static bool ShouldUseCustomizedDefaultWallpaper();
+
  private:
   friend class TestApi;
   friend class WallpaperManagerBrowserTest;
   typedef std::map<std::string, gfx::ImageSkia> CustomWallpaperMap;
 
   // Set |wallpaper| controlled by policy.
   void SetPolicyControlledWallpaper(const std::string& user_id,
                                     const UserImage& wallpaper);
 
   // Gets encoded wallpaper from cache. Returns true if success.
@@ skipping 100 matching lines @@
   void RecordUma(User::WallpaperType type, int index) const;
 
   // Saves original custom wallpaper to |path| (absolute path) on filesystem
   // and starts resizing operation of the custom wallpaper if necessary.
   void SaveCustomWallpaper(const std::string& user_id_hash,
                            const base::FilePath& path,
                            ash::WallpaperLayout layout,
                            const UserImage& wallpaper);
 
   // Saves wallpaper image raw |data| to |path| (absolute path) in file system.
-  void SaveWallpaperInternal(const base::FilePath& path, const char* data,
+  // True on success.
+  bool SaveWallpaperInternal(const base::FilePath& path,
+                             const char* data,
                              int size) const;
 
   // Creates new PendingWallpaper request (or updates currently pending).
   void ScheduleSetUserWallpaper(const std::string& user_id, bool delayed);
 
   // Sets wallpaper to default.
   void DoSetDefaultWallpaper(
       const std::string& user_id,
       MovableOnDestroyCallbackHolder on_finish);
 
@@ skipping 16 matching lines @@
   PendingWallpaper* GetPendingWallpaper(const std::string& user_id,
                                         bool delayed);
 
   // Calculate delay for next wallpaper load.
   // It is usually average wallpaper load time.
   // If last wallpaper load happened long ago, timeout should be reduced by
   // the time passed after last wallpaper load. So usual user experience results
   // in zero delay.
   base::TimeDelta GetWallpaperLoadDelay() const;
 
+  // This is called after we check that supplied default wallpaper files exist.
+  void SetCustomizedDefaultWallpaperAfterCheck(
+      const GURL& wallpaper_url,
+      const base::FilePath& downloaded_file,
+      scoped_ptr<CustomizedWallpaperRescaledFiles> rescaled_files,
+      scoped_ptr<CustomizedWallpaperFilesExist> exist);
+
+  // Starts rescaling of customized wallpaper.
+  void OnCustomizedDefaultWallpaperDecoded(
+      const GURL& wallpaper_url,
+      scoped_ptr<CustomizedWallpaperRescaledFiles> rescaled_files,
+      const UserImage& user_image);
+
+  // Resize and save customized default wallpaper.
+  void ResizeCustomizedDefaultWallpaper(
+      scoped_ptr<gfx::ImageSkia> image,
+      const UserImage::RawImage& raw_image,
+      const CustomizedWallpaperRescaledFiles* rescaled_files,
+      bool* success);
+
+  // Check the result of ResizeCustomizedDefaultWallpaper and finally
+  // apply Customized Default Wallpaper.
+  void OnCustomizedDefaultWallpaperResized(
+      const GURL& wallpaper_url,
+      scoped_ptr<CustomizedWallpaperRescaledFiles> rescaled_files,
+      scoped_ptr<bool> success);
+
   // The number of loaded wallpapers.
   int loaded_wallpapers_;
 
   // Sequence token associated with wallpaper operations.
   base::SequencedWorkerPool::SequenceToken sequence_token_;
 
   // Wallpaper sequenced task runner.
   scoped_refptr<base::SequencedTaskRunner> task_runner_;
 
   // The file path of current loaded/loading custom/online wallpaper.
@@ skipping 42 matching lines @@
   // All pending will be finally deleted on destroy.
   typedef std::vector<scoped_refptr<PendingWallpaper> > PendingList;
   PendingList loading_;
 
   DISALLOW_COPY_AND_ASSIGN(WallpaperManager);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_WALLPAPER_MANAGER_H_