If customization includes default wallpaper, download and apply it.

chrome/browser/chromeos/customization_document.cc

Index: chrome/browser/chromeos/customization_document.cc
diff --git a/chrome/browser/chromeos/customization_document.cc b/chrome/browser/chromeos/customization_document.cc
index b5cce96203c8f6f41b8ad47724691ec59a37dcac..5ad6628ee74cef149d58c0a429a9106a63c12b6e 100644
--- a/chrome/browser/chromeos/customization_document.cc
+++ b/chrome/browser/chromeos/customization_document.cc
@@ -11,6 +11,7 @@
 #include "base/json/json_reader.h"
 #include "base/logging.h"
 #include "base/memory/weak_ptr.h"
+#include "base/path_service.h"
 #include "base/prefs/pref_registry_simple.h"
 #include "base/prefs/pref_service.h"
 #include "base/strings/string_split.h"
@@ -19,11 +20,15 @@
 #include "base/strings/utf_string_conversions.h"
 #include "base/time/time.h"
 #include "chrome/browser/browser_process.h"
+#include "chrome/browser/chromeos/customization_wallpaper_downloader.h"
+#include "chrome/browser/chromeos/login/wallpaper_manager.h"
 #include "chrome/browser/chromeos/login/wizard_controller.h"
 #include "chrome/browser/extensions/external_loader.h"
 #include "chrome/browser/extensions/external_provider_impl.h"
 #include "chrome/browser/profiles/profile.h"
+#include "chrome/common/chrome_paths.h"
 #include "chrome/common/extensions/extension_constants.h"
+#include "chrome/common/pref_names.h"
 #include "chromeos/network/network_state.h"
 #include "chromeos/network/network_state_handler.h"
 #include "chromeos/system/statistics_provider.h"
@@ -57,6 +62,12 @@ const char kAcceptedManifestVersion[] = "1.0";
 const char kStartupCustomizationManifestPath[] =
     "/opt/oem/etc/startup_manifest.json";
 
+static const char kCustomizationDefaultWallpaperDir[] = "customization/";
+
+// The original downloaded image file is stored under this name.
+static const char kCustomizationDefaultWallpaperDownloadedFile[] =
+    "default.downloaded";
+
 // Name of local state option that tracks if services customization has been
 // applied.
 const char kServicesCustomizationAppliedPref[] = "ServicesCustomizationApplied";
@@ -70,6 +81,12 @@ const int kRetriesDelayInSec = 2;
 // Name of profile option that tracks cached version of service customization.
 const char kServicesCustomizationKey[] = "customization.manifest_cache";
 
+void CheckWallpaperCacheExists(const base::FilePath& path, bool* exists) {
+  DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::FILE));
+  DCHECK(exists);
+  *exists = base::PathExists(path);
+}
+
 }  // anonymous namespace
 
 namespace chromeos {
@@ -294,12 +311,13 @@ std::string StartupCustomizationDocument::GetEULAPage(
 ServicesCustomizationDocument::ServicesCustomizationDocument()
     : CustomizationDocument(kAcceptedManifestVersion),
       num_retries_(0),
-      fetch_started_(false) {
+      fetch_started_(false),
+      weak_factory_(this) {
 }
 
 ServicesCustomizationDocument::ServicesCustomizationDocument(
     const std::string& manifest)
-    : CustomizationDocument(kAcceptedManifestVersion) {
+    : CustomizationDocument(kAcceptedManifestVersion), weak_factory_(this) {
   LoadManifestFromString(manifest);
 }
 
@@ -315,6 +333,7 @@ ServicesCustomizationDocument* ServicesCustomizationDocument::GetInstance() {
 void ServicesCustomizationDocument::RegisterPrefs(
     PrefRegistrySimple* registry) {
   registry->RegisterBooleanPref(kServicesCustomizationAppliedPref, false);
+  registry->RegisterStringPref(prefs::kCustomizationDefaultWallpaperURL, "");
 }
 
 // static
@@ -457,8 +476,122 @@ void ServicesCustomizationDocument::OnURLFetchComplete(
   }
 }
 
+void ServicesCustomizationDocument::StartOEMWallpaperDownload(
+    const GURL& wallpaper_url) {
+  DCHECK(wallpaper_url.is_valid());
+
+  const base::FilePath dir = GetCustomizedWallpaperCacheDir();
+  const base::FilePath file = GetCustomizedWallpaperDownloadedFileName();
+  if (!dir.empty() && !file.empty()) {
+    wallpaper_downloader_.reset(new CustomizationWallpaperDownloader(
+        g_browser_process->system_request_context(), wallpaper_url, dir, file));
+
+    wallpaper_downloader_->Start();
+  }
+}
+
+// static
+base::FilePath ServicesCustomizationDocument::GetCustomizedWallpaperCacheDir() {
+  base::FilePath custom_wallpaper_dir;
+  const bool success = PathService::Get(chrome::DIR_CHROMEOS_CUSTOM_WALLPAPERS,
+                                        &custom_wallpaper_dir);
+  DCHECK(success);
+
+  if (success)
+    return custom_wallpaper_dir.Append(kCustomizationDefaultWallpaperDir);
+
+  return custom_wallpaper_dir;
+}
+
+// static
+base::FilePath
+ServicesCustomizationDocument::GetCustomizedWallpaperDownloadedFileName() {
+  const base::FilePath dir = GetCustomizedWallpaperCacheDir();
+  if (dir.empty())
+    return dir;
+  return dir.Append(kCustomizationDefaultWallpaperDownloadedFile);
+}
+
+// static
+void ServicesCustomizationDocument::SetDefaultWallpaperPath(
+    const GURL& wallpaper_url) {
+  DCHECK(wallpaper_url.is_valid());
+
+  VLOG(1) << "Setting default wallpaper to '"
+          << GetCustomizedWallpaperDownloadedFileName().value() << "' ('"
+          << wallpaper_url.spec() << "')";
+  WallpaperManager::Get()->SetCustomizedDefaultWallpaper(
+      wallpaper_url,
+      GetCustomizedWallpaperDownloadedFileName(),
+      GetCustomizedWallpaperCacheDir());
+}
+
+// static
+void ServicesCustomizationDocument::DestroyWallpaperDownloader() {
+  ServicesCustomizationDocument* self =
+      ServicesCustomizationDocument::GetInstance();
+  DCHECK(self);
+  self->wallpaper_downloader_.reset();
+}
+
+void ServicesCustomizationDocument::ApplyWallpaper(
+    bool default_wallpaper_file_exists) {
+  GURL wallpaper_url = GetDefaultWallpaperUrl();
+  DCHECK(wallpaper_url.is_valid());
+
+  PrefService* prefService = g_browser_process->local_state();
+  DCHECK(prefService);
+
+  std::string current_url =
+      prefService->GetString(prefs::kCustomizationDefaultWallpaperURL);
+  if ((current_url != wallpaper_url.spec()) ||
+      (!default_wallpaper_file_exists)) {
+    VLOG(1)
+        << "ServicesCustomizationDocument::ApplyWallpaper() : start download";
+    StartOEMWallpaperDownload(wallpaper_url);
+  } else {
+    VLOG(1)
+        << "ServicesCustomizationDocument::ApplyWallpaper() : reuse existing";
+    SetDefaultWallpaperPath(wallpaper_url);
+  }
+}
+
+void ServicesCustomizationDocument::OnCheckedWallpaperCacheExists(
+    scoped_ptr<bool> exists) {
+  DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
+  DCHECK(exists.get());
+
+  ApplyWallpaper(*exists);
+}
+
+void ServicesCustomizationDocument::CheckAndApplyWallpaper() {
+  GURL wallpaper_url = GetDefaultWallpaperUrl();
+  // 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;
+  }
+  scoped_ptr<bool> exists(new bool(false));
+
+  base::Closure check_file_exists =
+      base::Bind(&CheckWallpaperCacheExists,
+                 GetCustomizedWallpaperDownloadedFileName(),
+                 base::Unretained(exists.get()));
+  base::Closure on_checked_closure =
+      base::Bind(&ServicesCustomizationDocument::OnCheckedWallpaperCacheExists,
+                 weak_factory_.GetWeakPtr(),
+                 base::Passed(exists.Pass()));
+  if (!content::BrowserThread::PostBlockingPoolTaskAndReply(
+          FROM_HERE, check_file_exists, on_checked_closure)) {
+    LOG(WARNING) << "Failed to start check Wallpaper cache exists.";
+  }
+}
+
 bool ServicesCustomizationDocument::ApplyOOBECustomization() {
-  // TODO(dpolukhin): apply default wallpaper.
+  CheckAndApplyWallpaper();
   SetApplied(true);
   return true;
 }