scrollbar_layer_impl_base.h revision c2e0dbddbe15c98d52c4786dac06cb8952a8ae6d 
1// Copyright 2012 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_LAYERS_SCROLLBAR_LAYER_IMPL_BASE_H_
6#define CC_LAYERS_SCROLLBAR_LAYER_IMPL_BASE_H_
7
8#include "cc/base/cc_export.h"
9#include "cc/layers/layer_impl.h"
10#include "third_party/WebKit/Source/Platform/chromium/public/WebScrollbar.h"
11
12namespace cc {
13
14class CC_EXPORT ScrollbarLayerImplBase : public LayerImpl {
15 public:
16  virtual ~ScrollbarLayerImplBase() {}
17
18  virtual float CurrentPos() const = 0;
19  virtual int TotalSize() const = 0;
20  virtual int Maximum() const = 0;
21  virtual WebKit::WebScrollbar::Orientation Orientation() const = 0;
22
23 protected:
24  ScrollbarLayerImplBase(LayerTreeImpl* tree_impl, int id)
25      : LayerImpl(tree_impl, id) {}
26};
27
28}  // namespace cc
29
30#endif  // CC_LAYERS_SCROLLBAR_LAYER_IMPL_BASE_H_
31