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// Copyright (c) 2012 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_CHROMEOS_LOGIN_RESET_SCREEN_HANDLER_H_
#define CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_RESET_SCREEN_HANDLER_H_
#include "base/compiler_specific.h"
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "chrome/browser/chromeos/login/help_app_launcher.h"
#include "chrome/browser/chromeos/login/screens/reset_screen_actor.h"
#include "chrome/browser/ui/webui/chromeos/login/base_screen_handler.h"
#include "chromeos/dbus/update_engine_client.h"
#include "content/public/browser/web_ui.h"
class PrefRegistrySimple;
namespace chromeos {
// WebUI implementation of ResetScreenActor.
class ResetScreenHandler : public ResetScreenActor,
public BaseScreenHandler,
public UpdateEngineClient::Observer {
public:
ResetScreenHandler();
virtual ~ResetScreenHandler();
// ResetScreenActor implementation:
virtual void PrepareToShow() OVERRIDE;
virtual void Show() OVERRIDE;
virtual void Hide() OVERRIDE;
virtual void SetDelegate(Delegate* delegate) OVERRIDE;
// BaseScreenHandler implementation:
virtual void DeclareLocalizedValues(LocalizedValuesBuilder* builder) OVERRIDE;
virtual void Initialize() OVERRIDE;
// WebUIMessageHandler implementation:
virtual void RegisterMessages() OVERRIDE;
// UpdateEngineClient::Observer implementation:
virtual void UpdateStatusChanged(
const UpdateEngineClient::Status& status) OVERRIDE;
void OnRollbackCheck(bool can_rollback);
// Registers Local State preferences.
static void RegisterPrefs(PrefRegistrySimple* registry);
private:
// JS messages handlers.
void HandleOnCancel();
void HandleOnRestart(bool should_rollback);
void HandleOnPowerwash(bool rollback_checked);
void HandleOnLearnMore();
void ChooseAndApplyShowScenario();
void ShowWithParams();
Delegate* delegate_;
// Help application used for help dialogs.
scoped_refptr<HelpAppLauncher> help_app_;
// Keeps whether screen should be shown right after initialization.
bool show_on_init_;
// Keeps whether restart is required before reset.
// False if first exec after boot.
bool restart_required_;
// Keeps whether previous reboot was requested from reset screen. Makes sense
// for first exec after boot situation.
bool reboot_was_requested_;
// Keeps whether rollback option is available fo.
bool rollback_available_;
// Whether rollback is initiated.
bool preparing_for_rollback_;
base::WeakPtrFactory<ResetScreenHandler> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(ResetScreenHandler);
};
} // namespace chromeos
#endif // CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_RESET_SCREEN_HANDLER_H_