| // 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 <memory> |
| |
| #include "cc/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 CC_EXPORT PaintedScrollbarLayerImpl : public ScrollbarLayerImplBase { |
| public: |
| static std::unique_ptr<PaintedScrollbarLayerImpl> Create( |
| LayerTreeImpl* tree_impl, |
| int id, |
| ScrollbarOrientation orientation, |
| bool is_left_side_vertical_scrollbar, |
| bool is_overlay); |
| PaintedScrollbarLayerImpl(const PaintedScrollbarLayerImpl&) = delete; |
| ~PaintedScrollbarLayerImpl() override; |
| |
| PaintedScrollbarLayerImpl& operator=(const PaintedScrollbarLayerImpl&) = |
| delete; |
| |
| // LayerImpl implementation. |
| std::unique_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl) override; |
| void PushPropertiesTo(LayerImpl* layer) override; |
| |
| bool WillDraw(DrawMode draw_mode, |
| viz::ClientResourceProvider* resource_provider) override; |
| void AppendQuads(viz::CompositorRenderPass* render_pass, |
| AppendQuadsData* append_quads_data) override; |
| gfx::Rect GetEnclosingVisibleRectInTargetSpace() const override; |
| |
| void SetJumpOnTrackClick(bool jump_on_track_click); |
| void SetSupportsDragSnapBack(bool supports_drag_snap_back); |
| void SetBackButtonRect(gfx::Rect back_button_rect); |
| void SetForwardButtonRect(gfx::Rect forward_button_rect); |
| void SetThumbThickness(int thumb_thickness); |
| void SetThumbLength(int thumb_length); |
| void SetTrackRect(gfx::Rect track_rect); |
| void SetScrollbarPaintedOpacity(float opacity); |
| |
| 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; |
| } |
| float OverlayScrollbarOpacity() const override; |
| |
| void set_internal_contents_scale_and_bounds(float content_scale, |
| const gfx::Size& content_bounds) { |
| internal_contents_scale_ = content_scale; |
| internal_content_bounds_ = content_bounds; |
| } |
| |
| bool JumpOnTrackClick() const override; |
| bool SupportsDragSnapBack() const override; |
| gfx::Rect BackButtonRect() const override; |
| gfx::Rect ForwardButtonRect() const override; |
| gfx::Rect BackTrackRect() const override; |
| gfx::Rect ForwardTrackRect() const override; |
| int ThumbThickness() const override; |
| |
| LayerTreeSettings::ScrollbarAnimator GetScrollbarAnimator() const override; |
| |
| protected: |
| PaintedScrollbarLayerImpl(LayerTreeImpl* tree_impl, |
| int id, |
| ScrollbarOrientation orientation, |
| bool is_left_side_vertical_scrollbar, |
| bool is_overlay); |
| |
| // ScrollbarLayerImplBase implementation. |
| int ThumbLength() const override; |
| float TrackLength() const override; |
| int TrackStart() const override; |
| bool IsThumbResizable() const override; |
| |
| private: |
| const char* LayerTypeAsString() const override; |
| |
| UIResourceId track_ui_resource_id_; |
| UIResourceId thumb_ui_resource_id_; |
| |
| // This is relevant in case of Mac overlay scrollbars because they fade out by |
| // animating the opacity via Blink paint. |
| float painted_opacity_; |
| |
| float internal_contents_scale_; |
| gfx::Size internal_content_bounds_; |
| |
| bool jump_on_track_click_; |
| bool supports_drag_snap_back_; |
| int thumb_thickness_; |
| int thumb_length_; |
| gfx::Rect back_button_rect_; |
| gfx::Rect forward_button_rect_; |
| gfx::Rect track_rect_; |
| }; |
| |
| } // namespace cc |
| #endif // CC_LAYERS_PAINTED_SCROLLBAR_LAYER_IMPL_H_ |