cc/input/top_controls_manager_client.h

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CC_INPUT_TOP_CONTROLS_MANAGER_CLIENT_H_
   6 #define CC_INPUT_TOP_CONTROLS_MANAGER_CLIENT_H_
   7
   8 namespace cc {
   9
  10 class LayerTreeImpl;
  11
  12 class CC_EXPORT TopControlsManagerClient {
  13  public:
  14   virtual void SetControlsTopOffset(float offset) = 0;
  15   virtual float ControlsTopOffset() const = 0;
  16   virtual void DidChangeTopControlsPosition() = 0;
  17   virtual bool HaveRootScrollLayer() const = 0;
  18
  19  protected:
  20   virtual ~TopControlsManagerClient() {}
  21 };
  22
  23 }  // namespace cc
  24
  25 #endif  // CC_INPUT_TOP_CONTROLS_MANAGER_CLIENT_H_