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       ScrollbarOrientation orientation,
  21       int thumb_thickness,
  22       int track_start,
  23       bool is_left_side_vertical_scrollbar,
  24       int scroll_layer_id);
  25
  26   // Layer overrides.
  27   bool OpacityCanAnimateOnImplThread() const override;
  28   ScrollbarLayerInterface* ToScrollbarLayer() override;
  29
  30   void PushPropertiesTo(LayerImpl* layer) override;
  31   void PushScrollClipPropertiesTo(LayerImpl* layer) override;
  32
  33   void SetNeedsDisplayRect(const gfx::Rect& rect) override;
  34
  35   // ScrollbarLayerInterface
  36   int ScrollLayerId() const override;
  37   void SetScrollLayer(int layer_id) override;
  38   void SetClipLayer(int layer_id) override;
  39
  40   ScrollbarOrientation orientation() const override;
  41
  42  protected:
  43   SolidColorScrollbarLayer(ScrollbarOrientation orientation,
  44                            int thumb_thickness,
  45                            int track_start,
  46                            bool is_left_side_vertical_scrollbar,
  47                            int scroll_layer_id);
  48   ~SolidColorScrollbarLayer() override;
  49
  50  private:
  51   int scroll_layer_id_;
  52   int clip_layer_id_;
  53   ScrollbarOrientation orientation_;
  54   int thumb_thickness_;
  55   int track_start_;
  56   bool is_left_side_vertical_scrollbar_;
  57
  58   DISALLOW_COPY_AND_ASSIGN(SolidColorScrollbarLayer);
  59 };
  60
  61 }  // namespace cc
  62
  63 #endif  // CC_LAYERS_SOLID_COLOR_SCROLLBAR_LAYER_H_