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// Copyright 2014 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 THIRD_PARTY_BLINK_RENDERER_CORE_PAINT_PAINT_LAYER_PAINTER_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_PAINT_PAINT_LAYER_PAINTER_H_
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/core/paint/paint_layer.h"
#include "third_party/blink/renderer/core/paint/paint_layer_fragment.h"
#include "third_party/blink/renderer/core/paint/paint_layer_painting_info.h"
#include "third_party/blink/renderer/core/paint/paint_result.h"
#include "third_party/blink/renderer/platform/wtf/allocator/allocator.h"
namespace blink {
class CullRect;
class ClipRect;
class ComputedStyle;
class DisplayItemClient;
class GraphicsContext;
struct PhysicalOffset;
// This class is responsible for painting self-painting PaintLayer.
//
// See PainterLayer SELF-PAINTING LAYER section about what 'self-painting'
// means and how it impacts this class.
class CORE_EXPORT PaintLayerPainter {
STACK_ALLOCATED();
public:
PaintLayerPainter(PaintLayer& paint_layer) : paint_layer_(paint_layer) {}
// The Paint() method paints the layers that intersect the cull rect from
// back to front. paint() assumes that the caller will clip to the bounds of
// damageRect if necessary.
void Paint(GraphicsContext&,
const CullRect&,
const GlobalPaintFlags = kGlobalPaintNormalPhase,
PaintLayerFlags = 0);
// Paint() assumes that the caller will clip to the bounds of the painting
// dirty if necessary.
PaintResult Paint(GraphicsContext&,
const PaintLayerPaintingInfo&,
PaintLayerFlags);
// PaintLayerContents() assumes that the caller will clip to the bounds of the
// painting dirty rect if necessary.
PaintResult PaintLayerContents(GraphicsContext&,
const PaintLayerPaintingInfo&,
PaintLayerFlags);
void PaintOverlayOverflowControls(GraphicsContext&,
const CullRect&,
const GlobalPaintFlags);
// Returns true if the painted output of this PaintLayer and its children is
// invisible and therefore can't impact painted output.
static bool PaintedOutputInvisible(const ComputedStyle&);
private:
friend class PaintLayerPainterTest;
PaintResult PaintChildren(PaintLayerIteration children_to_visit,
GraphicsContext&,
const PaintLayerPaintingInfo&,
PaintLayerFlags);
bool AtLeastOneFragmentIntersectsDamageRect(
PaintLayerFragments&,
const PaintLayerPaintingInfo&,
PaintLayerFlags,
const PhysicalOffset& offset_from_root);
void PaintFragmentWithPhase(PaintPhase,
const PaintLayerFragment&,
GraphicsContext&,
const ClipRect&,
const PaintLayerPaintingInfo&,
PaintLayerFlags);
void PaintBackgroundForFragments(const PaintLayerFragments&,
GraphicsContext&,
const PaintLayerPaintingInfo&,
PaintLayerFlags);
void PaintForegroundForFragments(const PaintLayerFragments&,
GraphicsContext&,
const PaintLayerPaintingInfo&,
bool selection_only,
bool force_paint_chunks,
PaintLayerFlags);
void PaintForegroundForFragmentsWithPhase(PaintPhase,
const PaintLayerFragments&,
GraphicsContext&,
const PaintLayerPaintingInfo&,
PaintLayerFlags);
void PaintSelfOutlineForFragments(const PaintLayerFragments&,
GraphicsContext&,
const PaintLayerPaintingInfo&,
PaintLayerFlags);
void PaintOverlayOverflowControlsForFragments(const PaintLayerFragments&,
GraphicsContext&,
const PaintLayerPaintingInfo&,
PaintLayerFlags);
void PaintMaskForFragments(const PaintLayerFragments&,
GraphicsContext&,
const PaintLayerPaintingInfo&,
PaintLayerFlags);
void FillMaskingFragment(GraphicsContext&,
const ClipRect&,
const DisplayItemClient&);
void PaintEmptyContentForFilters(GraphicsContext&);
void AdjustForPaintProperties(const GraphicsContext&,
PaintLayerPaintingInfo&,
PaintLayerFlags&);
PaintLayer& paint_layer_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_PAINT_PAINT_LAYER_PAINTER_H_
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