cc/input/top_controls_manager_client.h

// Copyright 2013 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 CC_INPUT_TOP_CONTROLS_MANAGER_CLIENT_H_
#define CC_INPUT_TOP_CONTROLS_MANAGER_CLIENT_H_

namespace cc {

class LayerTreeImpl;

class CC_EXPORT TopControlsManagerClient {
 public:
  virtual float TopControlsHeight() const = 0;
  virtual void SetCurrentTopControlsShownRatio(float ratio) = 0;
  virtual float CurrentTopControlsShownRatio() const = 0;
  virtual void DidChangeTopControlsPosition() = 0;
  virtual bool HaveRootScrollLayer() const = 0;

 protected:
  virtual ~TopControlsManagerClient() {}
};

}  // namespace cc

#endif  // CC_INPUT_TOP_CONTROLS_MANAGER_CLIENT_H_