cc/layers/solid_color_scrollbar_layer.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_LAYERS_SOLID_COLOR_SCROLLBAR_LAYER_H_
   6 #define CC_LAYERS_SOLID_COLOR_SCROLLBAR_LAYER_H_
   7
   8 #include "cc/base/cc_export.h"
   9 #include "cc/layers/layer.h"
  10 #include "cc/layers/scrollbar_layer_interface.h"
  11
  12 namespace cc {
  13
  14 class CC_EXPORT SolidColorScrollbarLayer : public ScrollbarLayerInterface,
  15                                            public Layer {
  16  public:
  17   scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl) override;
  18
  19   static scoped_refptr<SolidColorScrollbarLayer> Create(
  20       const LayerSettings& settings,
  21       ScrollbarOrientation orientation,
  22       int thumb_thickness,
  23       int track_start,
  24       bool is_left_side_vertical_scrollbar,
  25       int scroll_layer_id);
  26
  27   // Layer overrides.
  28   bool OpacityCanAnimateOnImplThread() const override;
  29   ScrollbarLayerInterface* ToScrollbarLayer() override;
  30
  31   void PushPropertiesTo(LayerImpl* layer) override;
  32   void PushScrollClipPropertiesTo(LayerImpl* layer) override;
  33
  34   void SetNeedsDisplayRect(const gfx::Rect& rect) override;
  35
  36   // ScrollbarLayerInterface
  37   int ScrollLayerId() const override;
  38   void SetScrollLayer(int layer_id) override;
  39   void SetClipLayer(int layer_id) override;
  40
  41   ScrollbarOrientation orientation() const override;
  42
  43  protected:
  44   SolidColorScrollbarLayer(const LayerSettings& settings,
  45                            ScrollbarOrientation orientation,
  46                            int thumb_thickness,
  47                            int track_start,
  48                            bool is_left_side_vertical_scrollbar,
  49                            int scroll_layer_id);
  50   ~SolidColorScrollbarLayer() override;
  51
  52  private:
  53   int scroll_layer_id_;
  54   int clip_layer_id_;
  55   ScrollbarOrientation orientation_;
  56   int thumb_thickness_;
  57   int track_start_;
  58   bool is_left_side_vertical_scrollbar_;
  59
  60   DISALLOW_COPY_AND_ASSIGN(SolidColorScrollbarLayer);
  61 };
  62
  63 }  // namespace cc
  64
  65 #endif  // CC_LAYERS_SOLID_COLOR_SCROLLBAR_LAYER_H_