Sync Promo: Add a way to collapse the sync promo

chrome/browser/ui/webui/ntp/new_tab_ui.cc

 // Copyright (c) 2011 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 "build/build_config.h"
 
 #include "chrome/browser/ui/webui/ntp/new_tab_ui.h"
 
 #include <set>
 
@@ skipping 16 matching lines @@
 #include "chrome/browser/sessions/tab_restore_service_observer.h"
 #include "chrome/browser/sync/profile_sync_service.h"
 #include "chrome/browser/themes/theme_service.h"
 #include "chrome/browser/themes/theme_service_factory.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/webui/ntp/app_launcher_handler.h"
 #include "chrome/browser/ui/webui/ntp/favicon_webui_handler.h"
 #include "chrome/browser/ui/webui/ntp/foreign_session_handler.h"
 #include "chrome/browser/ui/webui/ntp/most_visited_handler.h"
 #include "chrome/browser/ui/webui/ntp/new_tab_page_sync_handler.h"
+#include "chrome/browser/ui/webui/ntp/new_tab_sync_setup_handler.h"
 #include "chrome/browser/ui/webui/ntp/ntp_login_handler.h"
 #include "chrome/browser/ui/webui/ntp/ntp_resource_cache.h"
 #include "chrome/browser/ui/webui/ntp/ntp_resource_cache_factory.h"
 #include "chrome/browser/ui/webui/ntp/shown_sections_handler.h"
 #include "chrome/browser/ui/webui/ntp/value_helper.h"
 #include "chrome/browser/ui/webui/theme_source.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/common/pref_names.h"
@@ skipping 332 matching lines @@
   if (NewTabUI::FirstRunDisabled())
     NewTabHTMLSource::set_first_run(false);
 
   static bool first_view = true;
   if (first_view) {
     first_view = false;
   }
 
   if (!GetProfile()->IsOffTheRecord()) {
     PrefService* pref_service = GetProfile()->GetPrefs();
-    AddMessageHandler((new NTPLoginHandler())->Attach(this));
+    if (!NewTabSyncSetupHandler::ShouldShowSyncPromo())
+      AddMessageHandler((new NTPLoginHandler())->Attach(this));
     AddMessageHandler((new ShownSectionsHandler(pref_service))->Attach(this));
     AddMessageHandler((new browser_sync::ForeignSessionHandler())->
         Attach(this));
     AddMessageHandler((new MostVisitedHandler())->Attach(this));
     AddMessageHandler((new RecentlyClosedTabsHandler())->Attach(this));
     AddMessageHandler((new MetricsHandler())->Attach(this));
     if (GetProfile()->IsSyncAccessible())
       AddMessageHandler((new NewTabPageSyncHandler())->Attach(this));
     ExtensionService* service = GetProfile()->GetExtensionService();
     // We might not have an ExtensionService (on ChromeOS when not logged in
     // for example).
     if (service)
       AddMessageHandler((new AppLauncherHandler(service))->Attach(this));
 
     AddMessageHandler((new NewTabPageSetHomePageHandler())->Attach(this));
     AddMessageHandler((new NewTabPageClosePromoHandler())->Attach(this));
     if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kNewTabPage4))
       AddMessageHandler((new FaviconWebUIHandler())->Attach(this));
   }
 
+  // Add the sync setup handler for the sync promo UI.
+  scoped_ptr<SyncSetupHandler> handler(new NewTabSyncSetupHandler());
+  AddMessageHandler(handler.release()->Attach(this));
+
   // Initializing the CSS and HTML can require some CPU, so do it after
   // we've hooked up the most visited handler.  This allows the DB query
   // for the new tab thumbs to happen earlier.
   InitializeCSSCaches();
   NewTabHTMLSource* html_source =
       new NewTabHTMLSource(GetProfile()->GetOriginalProfile());
   contents->profile()->GetChromeURLDataManager()->AddDataSource(html_source);
 
   // Listen for theme installation.
   registrar_.Add(this, chrome::NOTIFICATION_BROWSER_THEME_CHANGED,
@@ skipping 258 matching lines @@
   SendResponse(request_id, html_bytes);
 }
 
 std::string NewTabUI::NewTabHTMLSource::GetMimeType(const std::string&) const {
   return "text/html";
 }
 
 bool NewTabUI::NewTabHTMLSource::ShouldReplaceExistingSource() const {
   return false;
 }