Options2: Pull the trigger.

chrome/browser/ui/webui/options2/chromeos/about_page_handler.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_OPTIONS2_CHROMEOS_ABOUT_PAGE_HANDLER_H_
+#define CHROME_BROWSER_UI_WEBUI_OPTIONS2_CHROMEOS_ABOUT_PAGE_HANDLER_H_
+
+#include <string>
+
+#include "base/compiler_specific.h"
+#include "chrome/browser/ui/webui/options2/options_ui2.h"
+#include "chrome/browser/chromeos/dbus/update_engine_client.h"
+#include "chrome/browser/chromeos/version_loader.h"
+
+namespace chromeos {
+
+// ChromeOS about page UI handler.
+class AboutPageHandler : public OptionsPage2UIHandler {
+
+ public:
+  AboutPageHandler();
+  virtual ~AboutPageHandler();
+
+  // OptionsPage2UIHandler implementation.
+  virtual void GetLocalizedValues(
+      base::DictionaryValue* localized_strings) OVERRIDE;
+  virtual void RegisterMessages() OVERRIDE;
+
+ private:
+  class UpdateObserver;
+
+  // The function is called from JavaScript when the about page is ready.
+  void PageReady(const base::ListValue* args);
+
+  // The function is called from JavaScript to set the release track like
+  // "beta-channel" and "dev-channel".
+  void SetReleaseTrack(const base::ListValue* args);
+
+  // Initiates update check.
+  void CheckNow(const base::ListValue* args);
+
+  // Restarts the system.
+  void RestartNow(const base::ListValue* args);
+
+  // Callback from VersionLoader giving the version.
+  void OnOSVersion(VersionLoader::Handle handle,
+                   std::string version);
+  void OnOSFirmware(VersionLoader::Handle handle,
+                    std::string firmware);
+  void UpdateStatus(const UpdateEngineClient::Status& status);
+
+  // UpdateEngine Callback handler.
+  static void UpdateSelectedChannel(UpdateObserver* observer,
+                                    const std::string& channel);
+
+  // Handles asynchronously loading the version.
+  VersionLoader loader_;
+
+  // Used to request the version.
+  CancelableRequestConsumer consumer_;
+
+  // Update Observer
+  scoped_ptr<UpdateObserver> update_observer_;
+
+  int progress_;
+  bool sticky_;
+  bool started_;
+
+  DISALLOW_COPY_AND_ASSIGN(AboutPageHandler);
+};
+
+} // namespace chromeos
+
+#endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS2_CHROMEOS_ABOUT_PAGE_HANDLER_H_