| // Copyright 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CC_LAYERS_PAINTED_SCROLLBAR_LAYER_IMPL_H_ |
| #define CC_LAYERS_PAINTED_SCROLLBAR_LAYER_IMPL_H_ |
| |
| #include "cc/base/cc_export.h" |
| #include "cc/input/scrollbar.h" |
| #include "cc/layers/scrollbar_layer_impl_base.h" |
| #include "cc/resources/ui_resource_client.h" |
| |
| namespace cc { |
| |
| class LayerTreeImpl; |
| class ScrollView; |
| |
| class CC_EXPORT PaintedScrollbarLayerImpl : public ScrollbarLayerImplBase { |
| public: |
| static scoped_ptr<PaintedScrollbarLayerImpl> Create( |
| LayerTreeImpl* tree_impl, |
| int id, |
| ScrollbarOrientation orientation); |
| virtual ~PaintedScrollbarLayerImpl(); |
| |
| // LayerImpl implementation. |
| virtual scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl) |
| OVERRIDE; |
| virtual void PushPropertiesTo(LayerImpl* layer) OVERRIDE; |
| |
| virtual bool WillDraw(DrawMode draw_mode, |
| ResourceProvider* resource_provider) OVERRIDE; |
| virtual void AppendQuads(QuadSink* quad_sink, |
| AppendQuadsData* append_quads_data) OVERRIDE; |
| |
| void SetThumbThickness(int thumb_thickness); |
| void SetThumbLength(int thumb_length); |
| void SetTrackStart(int track_start); |
| void SetTrackLength(int track_length); |
| |
| void set_track_ui_resource_id(UIResourceId uid) { |
| track_ui_resource_id_ = uid; |
| } |
| void set_thumb_ui_resource_id(UIResourceId uid) { |
| thumb_ui_resource_id_ = uid; |
| } |
| |
| protected: |
| PaintedScrollbarLayerImpl(LayerTreeImpl* tree_impl, |
| int id, |
| ScrollbarOrientation orientation); |
| |
| // ScrollbarLayerImplBase implementation. |
| virtual int ThumbThickness() const OVERRIDE; |
| virtual int ThumbLength() const OVERRIDE; |
| virtual float TrackLength() const OVERRIDE; |
| virtual int TrackStart() const OVERRIDE; |
| virtual bool IsThumbResizable() const OVERRIDE; |
| |
| private: |
| virtual const char* LayerTypeAsString() const OVERRIDE; |
| |
| UIResourceId track_ui_resource_id_; |
| UIResourceId thumb_ui_resource_id_; |
| |
| int thumb_thickness_; |
| int thumb_length_; |
| int track_start_; |
| int track_length_; |
| |
| // Difference between the clip layer's height and the visible viewport |
| // height (which may differ in the presence of top-controls hiding). |
| float vertical_adjust_; |
| |
| int scroll_layer_id_; |
| |
| DISALLOW_COPY_AND_ASSIGN(PaintedScrollbarLayerImpl); |
| }; |
| |
| } // namespace cc |
| #endif // CC_LAYERS_PAINTED_SCROLLBAR_LAYER_IMPL_H_ |