src/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   virtual scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl)
  18       OVERRIDE;
  19
  20   static scoped_refptr<SolidColorScrollbarLayer> Create(
  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   virtual bool OpacityCanAnimateOnImplThread() const OVERRIDE;
  29   virtual ScrollbarLayerInterface* ToScrollbarLayer() OVERRIDE;
  30
  31   virtual void PushPropertiesTo(LayerImpl* layer) OVERRIDE;
  32   virtual void PushScrollClipPropertiesTo(LayerImpl* layer) OVERRIDE;
  33
  34   virtual void SetNeedsDisplayRect(const gfx::RectF&) OVERRIDE;
  35
  36   // ScrollbarLayerInterface
  37   virtual int ScrollLayerId() const OVERRIDE;
  38   virtual void SetScrollLayer(int layer_id) OVERRIDE;
  39   virtual void SetClipLayer(int layer_id) OVERRIDE;
  40
  41   virtual ScrollbarOrientation orientation() const OVERRIDE;
  42
  43  protected:
  44   SolidColorScrollbarLayer(ScrollbarOrientation orientation,
  45                            int thumb_thickness,
  46                            int track_start,
  47                            bool is_left_side_vertical_scrollbar,
  48                            int scroll_layer_id);
  49   virtual ~SolidColorScrollbarLayer();
  50
  51  private:
  52   int scroll_layer_id_;
  53   int clip_layer_id_;
  54   ScrollbarOrientation orientation_;
  55   int thumb_thickness_;
  56   int track_start_;
  57   bool is_left_side_vertical_scrollbar_;
  58
  59   DISALLOW_COPY_AND_ASSIGN(SolidColorScrollbarLayer);
  60 };
  61
  62 }  // namespace cc
  63
  64 #endif  // CC_LAYERS_SOLID_COLOR_SCROLLBAR_LAYER_H_