Enable surprise me wallpaper for new profiles.

BUG=305855, 322603
TBR=awatson@chromium.org

Review URL: https://codereview.chromium.org/162393002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@263741 0039d316-1c4b-4281-b951-d872f2087c98

5 files changed, 60 insertions, 2 deletions

diff --git a/chrome/browser/chromeos/login/login_utils.cc b/chrome/browser/chromeos/login/login_utils.cc
index 7800ada..b67175f 100644
--- a/chrome/browser/chromeos/login/login_utils.cc
+++ b/chrome/browser/chromeos/login/login_utils.cc
@@ -51,6 +51,7 @@
 #include "chrome/browser/chromeos/login/supervised_user_manager.h"
 #include "chrome/browser/chromeos/login/user.h"
 #include "chrome/browser/chromeos/login/user_manager.h"
+#include "chrome/browser/chromeos/login/wallpaper_manager.h"
 #include "chrome/browser/chromeos/settings/cros_settings.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/first_run/first_run.h"
@@ -348,6 +349,14 @@ void LoginUtilsImpl::DoBrowserLaunchOnLocaleLoadedImpl(
                                 first_run,
                                 &return_code);
 
+  // If the current user is a new regular user (not including
+  // multi-profile cases) enable surprise me wallpaper by default.
+  if (UserManager::Get()->IsCurrentUserNew() &&
+      UserManager::Get()->IsLoggedInAsRegularUser() &&
+      UserManager::Get()->GetLoggedInUsers().size() == 1) {
+    WallpaperManager::Get()->EnableSurpriseMe();
+  }
+
   // Triggers app launcher start page service to load start page web contents.
   app_list::StartPageService::Get(profile);
 
diff --git a/chrome/browser/chromeos/login/wallpaper_manager.cc b/chrome/browser/chromeos/login/wallpaper_manager.cc
index d59ae0a..a0017cb 100644
--- a/chrome/browser/chromeos/login/wallpaper_manager.cc
+++ b/chrome/browser/chromeos/login/wallpaper_manager.cc
@@ -29,11 +29,15 @@
 #include "base/values.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chrome_notification_types.h"
+#include "chrome/browser/chromeos/extensions/wallpaper_manager_util.h"
+#include "chrome/browser/chromeos/extensions/wallpaper_private_api.h"
+#include "chrome/browser/chromeos/login/login_display_host_impl.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/browser/extensions/extension_service.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/pref_names.h"
@@ -41,6 +45,8 @@
 #include "chromeos/dbus/dbus_thread_manager.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/notification_service.h"
+#include "content/public/browser/web_ui.h"
+#include "extensions/browser/event_router.h"
 #include "grit/ash_resources.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/gfx/codec/jpeg_codec.h"
@@ -975,6 +981,20 @@ void WallpaperManager::RemoveObserver(WallpaperManager::Observer* observer) {
   observers_.RemoveObserver(observer);
 }
 
+void WallpaperManager::EnableSurpriseMe() {
+  Profile* profile = ProfileManager::GetActiveUserProfile();
+  DCHECK(profile);
+  DCHECK(extensions::ExtensionSystem::Get(profile)->event_router());
+  scoped_ptr<extensions::Event> event(
+      new extensions::Event(
+    extensions::api::wallpaper_private::OnRequestEnableSurpriseMe::kEventName,
+    extensions::api::wallpaper_private::OnRequestEnableSurpriseMe::Create()));
+
+  extensions::ExtensionSystem::Get(profile)->event_router()
+      ->DispatchEventToExtension(extension_misc::kWallpaperManagerId,
+                                 event.Pass());
+}
+
 void WallpaperManager::NotifyAnimationFinished() {
   FOR_EACH_OBSERVER(
       Observer, observers_, OnWallpaperAnimationFinished(last_selected_user_));
diff --git a/chrome/browser/chromeos/login/wallpaper_manager.h b/chrome/browser/chromeos/login/wallpaper_manager.h
index 2dae2fa..cb3c95a 100644
--- a/chrome/browser/chromeos/login/wallpaper_manager.h
+++ b/chrome/browser/chromeos/login/wallpaper_manager.h
@@ -328,6 +328,9 @@ class WallpaperManager: public content::NotificationObserver {
   // Returns the appropriate wallpaper resolution for all root windows.
   static WallpaperResolution GetAppropriateResolution();
 
+  // Enable surprise me wallpaper mode.
+  void EnableSurpriseMe();
+
  private:
   friend class TestApi;
   friend class WallpaperManagerBrowserTest;
diff --git a/chrome/browser/resources/chromeos/wallpaper_manager/js/event_page.js b/chrome/browser/resources/chromeos/wallpaper_manager/js/event_page.js
index 7106203..f32032f 100644
--- a/chrome/browser/resources/chromeos/wallpaper_manager/js/event_page.js
+++ b/chrome/browser/resources/chromeos/wallpaper_manager/js/event_page.js
@@ -4,6 +4,7 @@
 
 var WALLPAPER_PICKER_WIDTH = 574;
 var WALLPAPER_PICKER_HEIGHT = 420;
+var SURPRISE_ME_ALARM_NAME = 'DefaultEnableSurpriseMe';
 
 var wallpaperPickerWindow;
 
@@ -271,6 +272,23 @@ chrome.storage.onChanged.addListener(function(changes, namespace) {
   }
 });
 
-chrome.alarms.onAlarm.addListener(function() {
-  SurpriseWallpaper.getInstance().next();
+chrome.alarms.onAlarm.addListener(function(alarm) {
+  if (alarm.name === SURPRISE_ME_ALARM_NAME) {
+    Constants.WallpaperSyncStorage.get(Constants.AccessSurpriseMeEnabledKey,
+                                        function(items) {
+      if (!items.hasOwnProperty(Constants.AccessSurpriseMeEnabledKey)) {
+        WallpaperUtil.saveToStorage(Constants.AccessSurpriseMeEnabledKey,
+                                    true, true);
+      }
+    });
+  } else {
+    SurpriseWallpaper.getInstance().next();
+  }
+});
+
+/**
+ * Enables surprise me wallpaper iff it has not already been configured.
+ */
+chrome.wallpaperPrivate.onRequestEnableSurpriseMe.addListener(function() {
+  chrome.alarms.create(SURPRISE_ME_ALARM_NAME, {delayInMinutes: 5});
 });
diff --git a/chrome/common/extensions/api/wallpaper_private.json b/chrome/common/extensions/api/wallpaper_private.json
index 2315906..89e6ee1 100644
--- a/chrome/common/extensions/api/wallpaper_private.json
+++ b/chrome/common/extensions/api/wallpaper_private.json
@@ -238,6 +238,14 @@
           }
         ]
       }
+    ],
+    "events": [
+      {
+        "name": "onRequestEnableSurpriseMe",
+        "type": "function",
+        "description": "Fired to request enabling surprise me mode for new profiles.",
+        "parameters": []
+      }
     ]
   }
 ]