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// Copyright 2015 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_ROTATOR_SCREEN_ROTATION_ANIMATOR_H_
#define ASH_ROTATOR_SCREEN_ROTATION_ANIMATOR_H_
#include "ash/ash_export.h"
#include "base/basictypes.h"
#include "ui/gfx/display.h"
namespace ash {
// Utility to perform a screen rotation with an animation.
class ASH_EXPORT ScreenRotationAnimator {
public:
explicit ScreenRotationAnimator(int64 display_id);
~ScreenRotationAnimator();
// Returns true if the screen rotation animation can be completed
// successfully. For example an animation is not possible if |display_id_|
// specifies a gfx::Display that is not currently active. See
// www.crbug.com/479503.
bool CanAnimate() const;
// Rotates the gfx::Display specified by |display_id_| to the |new_rotation|
// orientation, for the given |source|. The rotation will also become active.
// Clients should only call |Rotate(gfx::Display::Rotation)| if |CanAnimate()|
// returns true.
void Rotate(gfx::Display::Rotation new_rotation,
gfx::Display::RotationSource source);
private:
// The id of the display to rotate.
int64 display_id_;
DISALLOW_COPY_AND_ASSIGN(ScreenRotationAnimator);
};
} // namespace ash
#endif // ASH_ROTATOR_SCREEN_ROTATION_ANIMATOR_H_
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