Apply default wallpaper from customization manifest.

chrome/browser/chromeos/login/wallpaper_manager.cc

 // 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.
 
 #include "chrome/browser/chromeos/login/wallpaper_manager.h"
 
 #include <numeric>
 #include <vector>
 
 #include "ash/ash_switches.h"
@@ skipping 11 matching lines @@
 #include "base/prefs/pref_service.h"
 #include "base/prefs/scoped_user_pref_update.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/threading/worker_pool.h"
 #include "base/time/time.h"
 #include "base/values.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chrome_notification_types.h"
+#include "chrome/browser/chromeos/customization_document.h"
 #include "chrome/browser/chromeos/login/startup_utils.h"
 #include "chrome/browser/chromeos/login/user.h"
 #include "chrome/browser/chromeos/login/user_manager.h"
 #include "chrome/browser/chromeos/login/wizard_controller.h"
 #include "chrome/browser/chromeos/settings/cros_settings.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/pref_names.h"
 #include "chromeos/chromeos_switches.h"
 #include "chromeos/dbus/dbus_thread_manager.h"
@@ skipping 68 matching lines @@
                                   const std::string& user_id,
                                   const std::string& user_id_hash) {
   base::FilePath base_path = GetCustomWallpaperDir(sub_dir);
   base::FilePath to_path = base_path.Append(user_id_hash);
   base::FilePath from_path = base_path.Append(user_id);
   if (base::PathExists(from_path))
     return base::Move(from_path, to_path);
   return false;
 }
 
+void CheckCustomizedWallpaperFilesExist(
+    const base::FilePath& downloaded_file,
+    const WallpaperManager::CustomizedWallpaperRescaledFiles* rescaled_files,
+    WallpaperManager::CustomizedWallpaperFilesExist* exist) {
+  DCHECK(BrowserThread::GetBlockingPool()->RunsTasksOnCurrentThread());
+  DCHECK(rescaled_files);
+  DCHECK(exist);
+  exist->downloaded = base::PathExists(downloaded_file);
+  exist->rescaled_small = base::PathExists(rescaled_files->path_rescaled_small);
+  exist->rescaled_large = base::PathExists(rescaled_files->path_rescaled_large);
+}
+
 }  // namespace
 
 const char kWallpaperSequenceTokenName[] = "wallpaper-sequence";
 
 const char kSmallWallpaperSuffix[] = "_small";
 const char kLargeWallpaperSuffix[] = "_large";
 
 const char kSmallWallpaperSubDir[] = "small";
 const char kLargeWallpaperSubDir[] = "large";
 const char kOriginalWallpaperSubDir[] = "original";
@@ skipping 139 matching lines @@
        i != manager->loading_.end();
        ++i)
     if (i->get() == this) {
       manager->loading_.erase(i);
       break;
     }
 }
 
 // WallpaperManager, public: ---------------------------------------------------
 
+WallpaperManager::CustomizedWallpaperRescaledFiles::
+    CustomizedWallpaperRescaledFiles(const base::FilePath& path_rescaled_small,
+                                     const base::FilePath& path_rescaled_large)
+    : path_rescaled_small(path_rescaled_small),
+      path_rescaled_large(path_rescaled_large) {
+}
+
+WallpaperManager::CustomizedWallpaperFilesExist::CustomizedWallpaperFilesExist()
+    : downloaded(false), rescaled_small(false), rescaled_large(false) {
+}
+
+bool WallpaperManager::CustomizedWallpaperFilesExist::AllRescaledExist() const {
+  return rescaled_small && rescaled_large;
+}
+
 // TestApi. For testing purpose
 WallpaperManager::TestApi::TestApi(WallpaperManager* wallpaper_manager)
     : wallpaper_manager_(wallpaper_manager) {
 }
 
 WallpaperManager::TestApi::~TestApi() {
 }
 
 base::FilePath WallpaperManager::TestApi::current_wallpaper_path() {
   return wallpaper_manager_->current_wallpaper_path_;
@@ skipping 148 matching lines @@
   }
 
   return GetUserWallpaperInfo(UserManager::Get()->GetLoggedInUser()->email(),
                               info);
 }
 
 void WallpaperManager::InitializeWallpaper() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   UserManager* user_manager = UserManager::Get();
 
+  // eApply device nustomization.
+  if (ShouldUseCustomizedDefaultWallpaper()) {
+    SetDefaultWallpaperPath(
+        GetCustomizedWallpaperDefaultRescaledFileName(kSmallWallpaperSuffix),
+        scoped_ptr<gfx::ImageSkia>().Pass(),
+        GetCustomizedWallpaperDefaultRescaledFileName(kLargeWallpaperSuffix),
+        scoped_ptr<gfx::ImageSkia>().Pass());
+  }
+
   CommandLine* command_line = GetCommandLine();
   if (command_line->HasSwitch(chromeos::switches::kGuestSession)) {
     // Guest wallpaper should be initialized when guest login.
     // Note: This maybe called before login. So IsLoggedInAsGuest can not be
     // used here to determine if current user is guest.
     return;
   }
 
   if (command_line->HasSwitch(::switches::kTestType))
     WizardController::SetZeroDelays();
@@ skipping 333 matching lines @@
         use_small ? &guest_small_wallpaper_file_ : &guest_large_wallpaper_file_;
   } else {
     file = use_small ? &default_small_wallpaper_file_
                      : &default_large_wallpaper_file_;
   }
   const ash::WallpaperLayout layout =
       use_small ? ash::WALLPAPER_LAYOUT_CENTER
                 : ash::WALLPAPER_LAYOUT_CENTER_CROPPED;
   DCHECK(file);
   if (!default_wallpaper_image_.get() ||
-      default_wallpaper_image_->url().spec() != file->value()) {
+      default_wallpaper_image_->file_path() != file->value()) {
     default_wallpaper_image_.reset();
     if (!file->empty()) {
       loaded_wallpapers_++;
       StartLoadAndSetDefaultWallpaper(
           *file, layout, on_finish.Pass(), &default_wallpaper_image_);
       return;
     }
 
     const int resource_id = use_small ? IDR_AURA_WALLPAPER_DEFAULT_SMALL
                                       : IDR_AURA_WALLPAPER_DEFAULT_LARGE;
@@ skipping 702 matching lines @@
   if (!last_load_finished_at_.is_null()) {
     const base::TimeDelta interval = base::Time::Now() - last_load_finished_at_;
     if (interval > delay)
       delay = base::TimeDelta::FromMilliseconds(0);
     else if (interval > base::TimeDelta::FromMilliseconds(0))
       delay -= interval;
   }
   return delay;
 }
 
+void WallpaperManager::SetCustomizedDefaultWallpaperAfterCheck(
+    const GURL& wallpaper_url,
+    const base::FilePath& downloaded_file,
+    scoped_ptr<CustomizedWallpaperRescaledFiles> rescaled_files,
+    scoped_ptr<CustomizedWallpaperFilesExist> exist) {
+  PrefService* pref_service = g_browser_process->local_state();
+
+  std::string current_url =
+      pref_service->GetString(prefs::kCustomizationDefaultWallpaperURL);
+  if (current_url != wallpaper_url.spec() || !exist->AllRescaledExist()) {
+    DCHECK(exist->downloaded);
+    // Need rescale
+    wallpaper_loader_->Start(
+        downloaded_file.value(),
+        0,  // Do not crop.
+        base::Bind(&WallpaperManager::OnCustomizedDefaultWallpaperDecoded,
+                   weak_factory_.GetWeakPtr(),
+                   wallpaper_url,
+                   base::Passed(rescaled_files.Pass())));
+  } else {
+    SetDefaultWallpaperPath(rescaled_files->path_rescaled_small,
+                            scoped_ptr<gfx::ImageSkia>().Pass(),
+                            rescaled_files->path_rescaled_large,
+                            scoped_ptr<gfx::ImageSkia>().Pass());
+  }
+}
+
+void WallpaperManager::OnCustomizedDefaultWallpaperDecoded(
+    const GURL& wallpaper_url,
+    scoped_ptr<CustomizedWallpaperRescaledFiles> rescaled_files,
+    const UserImage& wallpaper) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+
+  // If decoded wallpaper is empty, we have probably failed to decode the file.
+  if (wallpaper.image().isNull()) {
+    LOG(WARNING) << "Failed to decode customized wallpaper.";
+    return;
+  }
+
+  wallpaper.image().EnsureRepsForSupportedScales();
+  scoped_ptr<gfx::ImageSkia> deep_copy(wallpaper.image().DeepCopy());
+
+  scoped_ptr<bool> success(new bool(false));
+  scoped_ptr<gfx::ImageSkia> small_wallpaper_image(new gfx::ImageSkia);
+  scoped_ptr<gfx::ImageSkia> large_wallpaper_image(new gfx::ImageSkia);
+
+  // TODO(bshe): This may break if RawImage becomes RefCountedMemory.
+  base::Closure resize_closure =
+      base::Bind(&WallpaperManager::ResizeCustomizedDefaultWallpaper,
+                 base::Unretained(this),
+                 base::Passed(&deep_copy),
+                 wallpaper.raw_image(),
+                 base::Unretained(rescaled_files.get()),
+                 base::Unretained(success.get()),
+                 base::Unretained(small_wallpaper_image.get()),
+                 base::Unretained(large_wallpaper_image.get()));
+  base::Closure on_resized_closure =
+      base::Bind(&WallpaperManager::OnCustomizedDefaultWallpaperResized,
+                 weak_factory_.GetWeakPtr(),
+                 wallpaper_url,
+                 base::Passed(rescaled_files.Pass()),
+                 base::Passed(success.Pass()),
+                 base::Passed(small_wallpaper_image.Pass()),
+                 base::Passed(large_wallpaper_image.Pass()));
+
+  if (!task_runner_->PostTaskAndReply(
+          FROM_HERE, resize_closure, on_resized_closure)) {
+    LOG(WARNING) << "Failed to start Customized Wallpaper resize.";
+  }
+}
+
+void WallpaperManager::ResizeCustomizedDefaultWallpaper(
+    scoped_ptr<gfx::ImageSkia> image,
+    const UserImage::RawImage& raw_image,
+    const CustomizedWallpaperRescaledFiles* rescaled_files,
+    bool* success,
+    gfx::ImageSkia* small_wallpaper_image,
+    gfx::ImageSkia* large_wallpaper_image) {
+  DCHECK(BrowserThread::GetBlockingPool()->IsRunningSequenceOnCurrentThread(
+      sequence_token_));
+  UserImage wallpaper(*image.get(), raw_image);
+
+  *success = true;
+
+  *success &= ResizeAndSaveWallpaper(wallpaper,
+                                     rescaled_files->path_rescaled_small,
+                                     ash::WALLPAPER_LAYOUT_STRETCH,
+                                     kSmallWallpaperMaxWidth,
+                                     kSmallWallpaperMaxHeight,
+                                     small_wallpaper_image);
+
+  *success &= ResizeAndSaveWallpaper(wallpaper,
+                                     rescaled_files->path_rescaled_large,
+                                     ash::WALLPAPER_LAYOUT_STRETCH,
+                                     kLargeWallpaperMaxWidth,
+                                     kLargeWallpaperMaxHeight,
+                                     large_wallpaper_image);
+}
+
+void WallpaperManager::OnCustomizedDefaultWallpaperResized(
+    const GURL& wallpaper_url,
+    scoped_ptr<CustomizedWallpaperRescaledFiles> rescaled_files,
+    scoped_ptr<bool> success,
+    scoped_ptr<gfx::ImageSkia> small_wallpaper_image,
+    scoped_ptr<gfx::ImageSkia> large_wallpaper_image) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  DCHECK(rescaled_files.get());
+  DCHECK(success.get());
+  if (!*success) {
+    LOG(WARNING) << "Failed to save Resized Customized Default Wallpaper";
+    return;
+  }
+  PrefService* pref_service = g_browser_process->local_state();
+  pref_service->SetString(prefs::kCustomizationDefaultWallpaperURL,
+                          wallpaper_url.spec());
+  SetDefaultWallpaperPath(rescaled_files->path_rescaled_small,
+                          small_wallpaper_image.Pass(),
+                          rescaled_files->path_rescaled_large,
+                          large_wallpaper_image.Pass());
+  VLOG(1) << "Customized Default Wallpaper applied.";
+}
+
 WallpaperManager::PendingWallpaper* WallpaperManager::GetPendingWallpaper(
     const std::string& user_id,
     bool delayed) {
   if (!pending_inactive_) {
     loading_.push_back(new WallpaperManager::PendingWallpaper(
         (delayed ? GetWallpaperLoadDelay()
                  : base::TimeDelta::FromMilliseconds(0)),
         user_id));
     pending_inactive_ = loading_.back();
   }
   return pending_inactive_;
 }
 
+// static
+base::FilePath WallpaperManager::GetCustomizedWallpaperDefaultRescaledFileName(
+    const char* suffix) {
+  const base::FilePath default_downloaded_file_name =
+      ServicesCustomizationDocument::GetCustomizedWallpaperDownloadedFileName();
+  const base::FilePath default_cache_dir =
+      ServicesCustomizationDocument::GetCustomizedWallpaperCacheDir();
+  if (default_downloaded_file_name.empty() || default_cache_dir.empty())
+    return base::FilePath();
+  return default_cache_dir.Append(
+      default_downloaded_file_name.BaseName().value() + suffix);
+}
+
+void WallpaperManager::SetCustomizedDefaultWallpaper(
+    const GURL& wallpaper_url,
+    const base::FilePath& downloaded_file,
+    const base::FilePath& resized_directory) {
+  // Should fail if this ever happens in tests.
+  DCHECK(wallpaper_url.is_valid() || wallpaper_url.is_empty());
+  if (!wallpaper_url.is_valid()) {
+    if (!wallpaper_url.is_empty()) {
+      LOG(WARNING) << "Invalid Customized Wallpaper URL.";
+    }
+    return;
+  }
+  std::string downloaded_file_name = downloaded_file.BaseName().value();
+  scoped_ptr<CustomizedWallpaperRescaledFiles> rescaled_files(
+      new CustomizedWallpaperRescaledFiles(
+          resized_directory.Append(downloaded_file_name +
+                                   kSmallWallpaperSuffix),
+          resized_directory.Append(downloaded_file_name +
+                                   kLargeWallpaperSuffix)));
+  scoped_ptr<CustomizedWallpaperFilesExist> exist(
+      new CustomizedWallpaperFilesExist);
+
+  base::Closure check_file_exists =
+      base::Bind(&CheckCustomizedWallpaperFilesExist,
+                 downloaded_file,
+                 base::Unretained(rescaled_files.get()),
+                 base::Unretained(exist.get()));
+  base::Closure on_checked_closure =
+      base::Bind(&WallpaperManager::SetCustomizedDefaultWallpaperAfterCheck,
+                 weak_factory_.GetWeakPtr(),
+                 wallpaper_url,
+                 downloaded_file,
+                 base::Passed(rescaled_files.Pass()),
+                 base::Passed(exist.Pass()));
+  if (!BrowserThread::PostBlockingPoolTaskAndReply(
+          FROM_HERE, check_file_exists, on_checked_closure)) {
+    LOG(WARNING) << "Failed to start check CheckCustomizedWallpaperFilesExist.";
+  }
+}
+
+// static
+bool WallpaperManager::ShouldUseCustomizedDefaultWallpaper() {
+  PrefService* pref_service = g_browser_process->local_state();
+
+  return !(pref_service->FindPreference(
+                             prefs::kCustomizationDefaultWallpaperURL)
+               ->IsDefaultValue());
+}
+
 void WallpaperManager::SetDefaultWallpaperPathsFromCommandLine(
     base::CommandLine* command_line) {
   default_small_wallpaper_file_ = command_line->GetSwitchValuePath(
       ash::switches::kAshDefaultWallpaperSmall);
   default_large_wallpaper_file_ = command_line->GetSwitchValuePath(
       ash::switches::kAshDefaultWallpaperLarge);
   guest_small_wallpaper_file_ =
       command_line->GetSwitchValuePath(ash::switches::kAshGuestWallpaperSmall);
   guest_large_wallpaper_file_ =
       command_line->GetSwitchValuePath(ash::switches::kAshGuestWallpaperLarge);
   default_wallpaper_image_.reset();
 }
 
 void WallpaperManager::OnDefaultWallpaperDecoded(
     const base::FilePath& path,
     const ash::WallpaperLayout layout,
     scoped_ptr<chromeos::UserImage>* result_out,
     MovableOnDestroyCallbackHolder on_finish,
     const UserImage& wallpaper) {
-  result_out->reset(new UserImage(wallpaper.image()));
-  (*result_out)->set_url(GURL(path.value()));
+  result_out->reset(new UserImage(wallpaper));
   ash::Shell::GetInstance()->desktop_background_controller()->SetWallpaperImage(
       wallpaper.image(), layout);
 }
 
 void WallpaperManager::StartLoadAndSetDefaultWallpaper(
     const base::FilePath& path,
     const ash::WallpaperLayout layout,
     MovableOnDestroyCallbackHolder on_finish,
     scoped_ptr<chromeos::UserImage>* result_out) {
   wallpaper_loader_->Start(
       path.value(),
       0,  // Do not crop.
       base::Bind(&WallpaperManager::OnDefaultWallpaperDecoded,
                  weak_factory_.GetWeakPtr(),
                  path,
                  layout,
                  base::Unretained(result_out),
                  base::Passed(on_finish.Pass())));
 }
 
 const char* WallpaperManager::GetCustomWallpaperSubdirForCurrentResolution() {
   WallpaperResolution resolution = GetAppropriateResolution();
   return resolution == WALLPAPER_RESOLUTION_SMALL ? kSmallWallpaperSubDir
                                                   : kLargeWallpaperSubDir;
 }
 
+void WallpaperManager::SetDefaultWallpaperPath(
+    const base::FilePath& default_small_wallpaper_file,
+    scoped_ptr<gfx::ImageSkia> small_wallpaper_image,
+    const base::FilePath& default_large_wallpaper_file,
+    scoped_ptr<gfx::ImageSkia> large_wallpaper_image) {
+  default_small_wallpaper_file_ = default_small_wallpaper_file;
+  default_large_wallpaper_file_ = default_large_wallpaper_file;
+
+  ash::DesktopBackgroundController* dbc =
+      ash::Shell::GetInstance()->desktop_background_controller();
+  const bool need_reload =
+      default_wallpaper_image_.get() &&
+      dbc->WallpaperIsAlreadyLoaded(&(default_wallpaper_image_->image()),
+                                    ash::kInvalidResourceID,
+                                    ash::WALLPAPER_LAYOUT_UNKNOWN);
+
+  default_wallpaper_image_.reset();
+  if (GetAppropriateResolution() == WALLPAPER_RESOLUTION_SMALL) {
+    if (small_wallpaper_image) {
+      default_wallpaper_image_.reset(new UserImage(*small_wallpaper_image));
+      default_wallpaper_image_->set_file_path(
+          default_small_wallpaper_file.value());
+    }
+  } else {
+    if (large_wallpaper_image) {
+      default_wallpaper_image_.reset(new UserImage(*large_wallpaper_image));
+      default_wallpaper_image_->set_file_path(
+          default_large_wallpaper_file.value());
+    }
+  }
+
+  if (need_reload) {
+    DoSetDefaultWallpaper(std::string(),
+                          MovableOnDestroyCallbackHolder().Pass());
+  }
+}
+
 }  // namespace chromeos