Options2: Pull the trigger.

chrome/browser/ui/webui/sync_promo_handler2.h

+// 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.
+
+#ifndef CHROME_BROWSER_UI_WEBUI_SYNC_PROMO_HANDLER_H_
+#define CHROME_BROWSER_UI_WEBUI_SYNC_PROMO_HANDLER_H_
+#pragma once
+
+#include "chrome/browser/ui/webui/sync_setup_handler2.h"
+
+class PrefService;
+
+// The handler for JavaScript messages related to the "sync promo" page.
+class SyncPromoHandler2 : public SyncSetupHandler2 {
+ public:
+  explicit SyncPromoHandler2(ProfileManager* profile_manager);
+  virtual ~SyncPromoHandler2();
+
+  // Called to register our preferences before we use them (so there will be a
+  // default if not present yet).
+  static void RegisterUserPrefs(PrefService* prefs);
+
+  // WebUIMessageHandler implementation.
+  virtual WebUIMessageHandler* Attach(WebUI* web_ui) OVERRIDE;
+  virtual void RegisterMessages() OVERRIDE;
+
+  // SyncSetupFlowHandler implementation.
+  virtual void ShowGaiaSuccessAndClose() OVERRIDE;
+  virtual void ShowGaiaSuccessAndSettingUp() OVERRIDE;
+  virtual void ShowConfigure(const base::DictionaryValue& args) OVERRIDE;
+
+  // content::NotificationObserver implementation.
+  virtual void Observe(int type,
+                       const content::NotificationSource& source,
+                       const content::NotificationDetails& details) OVERRIDE;
+
+ protected:
+  virtual void StepWizardForShowSetupUI() OVERRIDE;
+
+  virtual void ShowSetupUI() OVERRIDE;
+
+ private:
+  // JavaScript callback handler to close the sync promo.
+  void HandleCloseSyncPromo(const base::ListValue* args);
+
+  // JavaScript callback handler to initialize the sync promo.
+  void HandleInitializeSyncPromo(const base::ListValue* args);
+
+  // JavaScript handler to record the duration for which the throbber was
+  // visible during an attempted sign-in flow.
+  void HandleRecordThrobberTime(const base::ListValue* args);
+
+  // JavaScript handler to record the number of times a user attempted to sign
+  // in to chrome while they were on the sync promo page.
+  void HandleRecordSignInAttempts(const base::ListValue* args);
+
+  // JavaScript callback handler to switch the advanced sync settings. |args| is
+  // the list of arguments passed from JS and should be an empty list.
+  void HandleShowAdvancedSettings(const base::ListValue* args);
+
+  // JavaScript callback handler to record user actions on the sync promo.
+  void HandleUserFlowAction(const base::ListValue* args);
+
+  // JavaScript callback handler for when a user clicks skip.
+  void HandleUserSkipped(const base::ListValue* args);
+
+  // Return the number of times the user with the current profile has seen the
+  // sync promo.
+  int GetViewCount() const;
+
+  // Increment the local view count by the specified non-negative integer
+  // amount. Returns the new total view count.
+  int IncrementViewCountBy(unsigned int amount);
+
+  // Record a user's flow through the promo to our histogram in UMA.
+  void RecordUserFlowAction(int action);
+
+  // Load any experiments that run on the promo page.
+  void LoadPromoExperiments();
+
+  // Use this to register for certain notifications (currently when tabs or
+  // windows close).
+  content::NotificationRegistrar registrar_;
+
+  // Weak reference that's initialized and checked in Attach() (after that
+  // guaranteed to be non-NULL).
+  PrefService* prefs_;
+
+  // If the user closes the whole window we'll get a close notification from the
+  // tab as well, so this bool acts as a small mutex to only report the close
+  // method once.
+  bool window_already_closed_;
+
+  DISALLOW_COPY_AND_ASSIGN(SyncPromoHandler2);
+};
+
+#endif  // CHROME_BROWSER_UI_WEBUI_SYNC_PROMO_HANDLER_H_