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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 ASH_DISPLAY_DISPLAY_ERROR_DIALOG_H_
#define ASH_DISPLAY_DISPLAY_ERROR_DIALOG_H_
#include "ash/ash_export.h"
#include "ash/display/display_controller.h"
#include "base/compiler_specific.h"
#include "chromeos/display/output_configurator.h"
#include "ui/views/widget/widget_observer.h"
#include "ui/views/window/dialog_delegate.h"
namespace aura {
class RootWindow;
} // namespace aura
namespace gfx {
class Display;
class Size;
} // namespace gfx
namespace views {
class Label;
} // namespace views
namespace ash {
namespace internal {
// Dialog used to show an error messages when unable to change the display
// configuration to mirroring.
class ASH_EXPORT DisplayErrorDialog : public views::DialogDelegateView,
public ash::DisplayController::Observer {
public:
// Shows the error dialog for |failed_new_state| and returns it.
static DisplayErrorDialog* ShowDialog(chromeos::OutputState failed_new_state);
// Update the error message for |failed_new_state|.
void UpdateMessageForState(chromeos::OutputState failed_new_state);
private:
explicit DisplayErrorDialog(chromeos::OutputState failed_new_state);
virtual ~DisplayErrorDialog();
// views::DialogDelegate overrides:
virtual int GetDialogButtons() const OVERRIDE;
// views::WidgetDelegate overrides::
virtual ui::ModalType GetModalType() const OVERRIDE;
// views::View overrides:
virtual gfx::Size GetPreferredSize() OVERRIDE;
// ash::DisplayController::Observer overrides:
virtual void OnDisplayConfigurationChanging() OVERRIDE;
views::Label* label_;
DISALLOW_COPY_AND_ASSIGN(DisplayErrorDialog);
};
// The class to observe the output failures and shows the error dialog when
// necessary.
class ASH_EXPORT DisplayErrorObserver
: public chromeos::OutputConfigurator::Observer,
public views::WidgetObserver {
public:
DisplayErrorObserver();
virtual ~DisplayErrorObserver();
const DisplayErrorDialog* dialog() const { return dialog_; }
// chromeos::OutputConfigurator::Observer overrides:
virtual void OnDisplayModeChangeFailed(
chromeos::OutputState failed_new_state) OVERRIDE;
// views::WidgetObserver overrides:
virtual void OnWidgetClosing(views::Widget* widget) OVERRIDE;
private:
DisplayErrorDialog* dialog_;
DISALLOW_COPY_AND_ASSIGN(DisplayErrorObserver);
};
} // namespace internal
} // namespace ash
#endif // ASH_DISPLAY_DISPLAY_ERROR_DIALOG_H_
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