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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CC_LAYERS_NINE_PATCH_THUMB_SCROLLBAR_LAYER_IMPL_H_
#define CC_LAYERS_NINE_PATCH_THUMB_SCROLLBAR_LAYER_IMPL_H_
#include <memory>
#include <vector>
#include "cc/cc_export.h"
#include "cc/input/scrollbar.h"
#include "cc/layers/nine_patch_generator.h"
#include "cc/layers/scrollbar_layer_impl_base.h"
#include "cc/resources/ui_resource_client.h"
namespace cc {
class LayerTreeImpl;
class CC_EXPORT NinePatchThumbScrollbarLayerImpl
: public ScrollbarLayerImplBase {
public:
static std::unique_ptr<NinePatchThumbScrollbarLayerImpl> Create(
LayerTreeImpl* tree_impl,
int id,
ScrollbarOrientation orientation,
bool is_left_side_vertical_scrollbar);
NinePatchThumbScrollbarLayerImpl(const NinePatchThumbScrollbarLayerImpl&) =
delete;
NinePatchThumbScrollbarLayerImpl& operator=(
const NinePatchThumbScrollbarLayerImpl&) = delete;
~NinePatchThumbScrollbarLayerImpl() override;
// LayerImpl implementation.
mojom::LayerType GetLayerType() const override;
std::unique_ptr<LayerImpl> CreateLayerImpl(
LayerTreeImpl* tree_impl) const override;
void PushPropertiesTo(LayerImpl* layer) override;
bool WillDraw(DrawMode draw_mode,
viz::ClientResourceProvider* resource_provider) override;
void AppendQuads(const AppendQuadsContext& context,
viz::CompositorRenderPass* render_pass,
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);
int thumb_thickness() const { return thumb_thickness_; }
int thumb_length() const { return thumb_length_; }
int track_start() const { return track_start_; }
int track_length() const { return track_length_; }
void SetImageBounds(const gfx::Size& bounds);
void SetAperture(const gfx::Rect& aperture);
const gfx::Size& image_bounds() const { return image_bounds_; }
const gfx::Rect& aperture() const { return aperture_; }
void set_thumb_ui_resource_id(UIResourceId uid) {
thumb_ui_resource_id_ = uid;
}
void set_track_and_buttons_ui_resource_id(UIResourceId uid) {
track_and_buttons_ui_resource_id_ = uid;
}
UIResourceId thumb_ui_resource_id() const { return thumb_ui_resource_id_; }
UIResourceId track_and_buttons_ui_resource_id() const {
return track_and_buttons_ui_resource_id_;
}
protected:
NinePatchThumbScrollbarLayerImpl(LayerTreeImpl* tree_impl,
int id,
ScrollbarOrientation orientation,
bool is_left_side_vertical_scrollbar);
// ScrollbarLayerImplBase implementation.
int ThumbThickness() const override;
int ThumbLength() const override;
float TrackLength() const override;
int TrackStart() const override;
bool IsThumbResizable() const override;
private:
void AppendThumbQuads(viz::CompositorRenderPass* render_pass,
AppendQuadsData* append_quads_data,
viz::SharedQuadState* shared_quad_state);
void AppendTrackAndButtonsQuads(viz::CompositorRenderPass* render_pass,
AppendQuadsData* append_quads_data,
viz::SharedQuadState* shared_quad_state);
UIResourceId thumb_ui_resource_id_ = 0;
UIResourceId track_and_buttons_ui_resource_id_ = 0;
int thumb_thickness_ = 0;
int thumb_length_ = 0;
int track_start_ = 0;
int track_length_ = 0;
gfx::Size image_bounds_;
gfx::Rect aperture_;
NinePatchGenerator quad_generator_;
std::vector<NinePatchGenerator::Patch> patches_;
};
} // namespace cc
#endif // CC_LAYERS_NINE_PATCH_THUMB_SCROLLBAR_LAYER_IMPL_H_
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