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// Copyright 2012 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_SCROLLBAR_LAYER_IMPL_H_
#define CC_SCROLLBAR_LAYER_IMPL_H_
#include "cc/cc_export.h"
#include "cc/scrollbar_geometry_fixed_thumb.h"
#include "cc/scrollbar_layer_impl_base.h"
#include "third_party/WebKit/Source/Platform/chromium/public/WebRect.h"
#include "third_party/WebKit/Source/Platform/chromium/public/WebVector.h"
namespace cc {
class ScrollView;
class CC_EXPORT ScrollbarLayerImpl : public ScrollbarLayerImplBase {
public:
static scoped_ptr<ScrollbarLayerImpl> Create(
LayerTreeImpl* tree_impl,
int id,
scoped_ptr<ScrollbarGeometryFixedThumb> geometry);
virtual ~ScrollbarLayerImpl();
virtual ScrollbarLayerImpl* ToScrollbarLayer() OVERRIDE;
int scroll_layer_id() const { return scroll_layer_id_; }
void set_scroll_layer_id(int id) { scroll_layer_id_ = id; }
void SetScrollbarData(WebKit::WebScrollbar* scrollbar);
void SetThumbSize(gfx::Size size);
void set_back_track_resource_id(ResourceProvider::ResourceId id) {
back_track_resource_id_ = id;
}
void set_fore_track_resource_id(ResourceProvider::ResourceId id) {
fore_track_resource_id_ = id;
}
void set_thumb_resource_id(ResourceProvider::ResourceId id) {
thumb_resource_id_ = id;
}
// ScrollbarLayerImplBase implementation.
virtual float CurrentPos() const OVERRIDE;
virtual int TotalSize() const OVERRIDE;
virtual int Maximum() const OVERRIDE;
void SetCurrentPos(float current_pos) { current_pos_ = current_pos; }
void SetTotalSize(int total_size) { total_size_ = total_size; }
void SetMaximum(int maximum) { maximum_ = maximum; }
virtual WebKit::WebScrollbar::Orientation Orientation() const OVERRIDE;
virtual scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl)
OVERRIDE;
virtual void PushPropertiesTo(LayerImpl* layer) OVERRIDE;
virtual void AppendQuads(QuadSink* quad_sink,
AppendQuadsData* append_quads_data) OVERRIDE;
virtual void DidLoseOutputSurface() OVERRIDE;
protected:
ScrollbarLayerImpl(LayerTreeImpl* tree_impl,
int id,
scoped_ptr<ScrollbarGeometryFixedThumb> geometry);
private:
// nested class only to avoid namespace problem
class Scrollbar : public WebKit::WebScrollbar {
public:
explicit Scrollbar(ScrollbarLayerImpl* owner) : owner_(owner) {}
// WebScrollbar implementation
virtual bool isOverlay() const;
virtual int value() const;
virtual WebKit::WebPoint location() const;
virtual WebKit::WebSize size() const;
virtual bool enabled() const;
virtual int maximum() const;
virtual int totalSize() const;
virtual bool isScrollViewScrollbar() const;
virtual bool isScrollableAreaActive() const;
virtual void getTickmarks(WebKit::WebVector<WebKit::WebRect>& tickmarks)
const;
virtual WebScrollbar::ScrollbarControlSize controlSize() const;
virtual WebScrollbar::ScrollbarPart pressedPart() const;
virtual WebScrollbar::ScrollbarPart hoveredPart() const;
virtual WebScrollbar::ScrollbarOverlayStyle scrollbarOverlayStyle() const;
virtual WebScrollbar::Orientation orientation() const;
virtual bool isCustomScrollbar() const;
private:
ScrollbarLayerImpl* owner_;
};
virtual const char* LayerTypeAsString() const OVERRIDE;
gfx::Rect ScrollbarLayerRectToContentRect(gfx::Rect layer_rect) const;
Scrollbar scrollbar_;
ResourceProvider::ResourceId back_track_resource_id_;
ResourceProvider::ResourceId fore_track_resource_id_;
ResourceProvider::ResourceId thumb_resource_id_;
scoped_ptr<ScrollbarGeometryFixedThumb> geometry_;
float current_pos_;
int total_size_;
int maximum_;
gfx::Size thumb_size_;
int scroll_layer_id_;
// Data to implement Scrollbar
WebKit::WebScrollbar::ScrollbarOverlayStyle scrollbar_overlay_style_;
WebKit::WebVector<WebKit::WebRect> tickmarks_;
WebKit::WebScrollbar::Orientation orientation_;
WebKit::WebScrollbar::ScrollbarControlSize control_size_;
WebKit::WebScrollbar::ScrollbarPart pressed_part_;
WebKit::WebScrollbar::ScrollbarPart hovered_part_;
bool is_scrollable_area_active_;
bool is_scroll_view_scrollbar_;
bool enabled_;
bool is_custom_scrollbar_;
bool is_overlay_scrollbar_;
};
}
#endif // CC_SCROLLBAR_LAYER_IMPL_H_
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