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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_PAINT_OBJECT_PAINTER_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_PAINT_OBJECT_PAINTER_H_
#include "cc/input/hit_test_opaqueness.h"
#include "third_party/blink/renderer/core/style/computed_style_constants.h"
#include "third_party/blink/renderer/platform/geometry/physical_offset.h"
#include "third_party/blink/renderer/platform/wtf/allocator/allocator.h"
namespace gfx {
class Rect;
}
namespace blink {
class DisplayItemClient;
class LayoutObject;
struct PaintInfo;
class ObjectPainter {
STACK_ALLOCATED();
public:
ObjectPainter(const LayoutObject& layout_object)
: layout_object_(layout_object) {}
void PaintOutline(const PaintInfo&, const PhysicalOffset& paint_offset);
void PaintInlineChildrenOutlines(const PaintInfo&);
void AddURLRectIfNeeded(const PaintInfo&, const PhysicalOffset& paint_offset);
// Paints the object atomically as if it created a new stacking context, for:
// - inline blocks, inline tables, inline-level replaced elements (Section
// 7.2.1.4 in http://www.w3.org/TR/CSS2/zindex.html#painting-order),
// - non-positioned floating objects (Section 5 in
// http://www.w3.org/TR/CSS2/zindex.html#painting-order),
// - flex items (http://www.w3.org/TR/css-flexbox-1/#painting),
// - grid items (http://www.w3.org/TR/css-grid-1/#z-order),
// - custom scrollbar parts.
// Also see core/paint/README.md.
//
// It is expected that the caller will call this function independent of the
// value of paintInfo.phase, and this function will do atomic paint (for
// kForeground), normal paint (for kSelection and kTextClip) or nothing (other
// paint phases) according to paintInfo.phase.
void PaintAllPhasesAtomically(const PaintInfo&);
// Hit test data has two purposes:
// 1. Expands the bounds of the current paint chunk for hit test;
// 2. Stores special hit test data, e.g. special touch action.
// This should be called in the proper paint phase (background for
// LayoutBoxes, foreground for line boxes and SVG) even if there is no other
// painted content.
void RecordHitTestData(const PaintInfo&,
const gfx::Rect& paint_rect,
const DisplayItemClient&);
cc::HitTestOpaqueness GetHitTestOpaqueness() const;
// If true, we should record hit test data for the second purpose described
// above. As an optimization, some callers of RecordHitTestData() doesn't
// need to call it just for the first purpose. For example, a text fragment
// is always contained by some line box, thus the painter checks this
// function before calling RecordHitTestData().
bool ShouldRecordSpecialHitTestData(const PaintInfo&);
private:
const LayoutObject& layout_object_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_PAINT_OBJECT_PAINTER_H_
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