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// Copyright 2014 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_TOUCH_VIEW_CONTROLLER_DELEGATE_H_
#define CHROME_BROWSER_UI_WEBUI_CHROMEOS_TOUCH_VIEW_CONTROLLER_DELEGATE_H_
#include "ash/shell_observer.h"
#include "base/observer_list.h"
namespace chromeos {
// An interface for ash::MaximizeModeController.
class TouchViewControllerDelegate : public ash::ShellObserver {
public:
// Observer that reports changes to the state of MaximizeModeController's
// rotation lock.
class Observer {
public:
// Invoked when maximize mode started/ended.
virtual void OnMaximizeModeStarted() {}
virtual void OnMaximizeModeEnded() {}
protected:
virtual ~Observer() {}
};
TouchViewControllerDelegate();
virtual ~TouchViewControllerDelegate();
// Add/Remove observers.
void AddObserver(Observer* observer);
void RemoveObserver(Observer* observer);
// Test if the Maximize Mode is enabled or not.
bool IsMaximizeModeEnabled() const;
private:
// ash::ShellObserver implementation:
virtual void OnMaximizeModeStarted() override;
virtual void OnMaximizeModeEnded() override;
// Mode state change observers.
ObserverList<Observer> observers_;
DISALLOW_COPY_AND_ASSIGN(TouchViewControllerDelegate);
};
} // namespace chromeos
#endif // CHROME_BROWSER_UI_WEBUI_CHROMEOS_TOUCH_VIEW_CONTROLLER_DELEGATE_H_
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