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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.
#include "third_party/blink/renderer/core/paint/object_painter.h"
#include "third_party/blink/renderer/core/layout/layout_block.h"
#include "third_party/blink/renderer/core/layout/layout_inline.h"
#include "third_party/blink/renderer/core/layout/layout_object.h"
#include "third_party/blink/renderer/core/layout/layout_theme.h"
#include "third_party/blink/renderer/core/paint/paint_info.h"
#include "third_party/blink/renderer/core/style/border_edge.h"
#include "third_party/blink/renderer/core/style/computed_style.h"
#include "third_party/blink/renderer/platform/geometry/layout_point.h"
#include "third_party/blink/renderer/platform/graphics/graphics_context_state_saver.h"
#include "third_party/blink/renderer/platform/graphics/paint/drawing_recorder.h"
#include "third_party/blink/renderer/platform/wtf/vector.h"
namespace blink {
void ObjectPainter::PaintOutline(const PaintInfo& paint_info,
const PhysicalOffset& paint_offset) {
DCHECK(ShouldPaintSelfOutline(paint_info.phase));
const ComputedStyle& style_to_use = layout_object_.StyleRef();
if (!style_to_use.HasOutline() ||
style_to_use.Visibility() != EVisibility::kVisible)
return;
// Only paint the focus ring by hand if the theme isn't able to draw the focus
// ring.
if (style_to_use.OutlineStyleIsAuto() &&
!LayoutTheme::GetTheme().ShouldDrawDefaultFocusRing(
layout_object_.GetNode(), style_to_use)) {
return;
}
auto outline_rects = layout_object_.OutlineRects(
paint_offset,
style_to_use.OutlineRectsShouldIncludeBlockVisualOverflow());
if (outline_rects.IsEmpty())
return;
if (DrawingRecorder::UseCachedDrawingIfPossible(
paint_info.context, layout_object_, paint_info.phase))
return;
IntRect visual_rect =
PixelSnappedIntRect(UnionRectEvenIfEmpty(outline_rects));
visual_rect.Inflate(style_to_use.OutlineOutsetExtent());
DrawingRecorder recorder(paint_info.context, layout_object_, paint_info.phase,
visual_rect);
PaintOutlineRects(paint_info, outline_rects, style_to_use);
}
void ObjectPainter::PaintInlineChildrenOutlines(const PaintInfo& paint_info) {
DCHECK(ShouldPaintDescendantOutlines(paint_info.phase));
PaintInfo paint_info_for_descendants = paint_info.ForDescendants();
for (LayoutObject* child = layout_object_.SlowFirstChild(); child;
child = child->NextSibling()) {
if (child->IsLayoutInline() &&
!To<LayoutInline>(child)->HasSelfPaintingLayer())
child->Paint(paint_info_for_descendants);
}
}
void ObjectPainter::AddURLRectIfNeeded(const PaintInfo& paint_info,
const PhysicalOffset& paint_offset) {
DCHECK(paint_info.ShouldAddUrlMetadata());
if (layout_object_.IsElementContinuation() || !layout_object_.GetNode() ||
!layout_object_.GetNode()->IsLink() ||
layout_object_.StyleRef().Visibility() != EVisibility::kVisible)
return;
KURL url = To<Element>(layout_object_.GetNode())->HrefURL();
if (!url.IsValid())
return;
auto outline_rects = layout_object_.OutlineRects(
paint_offset, NGOutlineType::kIncludeBlockVisualOverflow);
IntRect rect = PixelSnappedIntRect(UnionRect(outline_rects));
if (rect.IsEmpty())
return;
if (DrawingRecorder::UseCachedDrawingIfPossible(
paint_info.context, layout_object_,
DisplayItem::kPrintedContentPDFURLRect))
return;
DrawingRecorder recorder(paint_info.context, layout_object_,
DisplayItem::kPrintedContentPDFURLRect, rect);
if (url.HasFragmentIdentifier() &&
EqualIgnoringFragmentIdentifier(url,
layout_object_.GetDocument().BaseURL())) {
String fragment_name = url.FragmentIdentifier();
if (layout_object_.GetDocument().FindAnchor(fragment_name))
paint_info.context.SetURLFragmentForRect(fragment_name, rect);
return;
}
paint_info.context.SetURLForRect(url, rect);
}
void ObjectPainter::PaintAllPhasesAtomically(const PaintInfo& paint_info) {
// Pass kSelectionDragImage and kTextClip to the descendants so that
// they will paint for selection and text clip respectively. We don't need
// complete painting for these phases.
if (paint_info.phase == PaintPhase::kSelectionDragImage ||
paint_info.phase == PaintPhase::kTextClip) {
layout_object_.Paint(paint_info);
return;
}
if (paint_info.phase != PaintPhase::kForeground)
return;
PaintInfo info(paint_info);
info.phase = PaintPhase::kBlockBackground;
layout_object_.Paint(info);
info.phase = PaintPhase::kForcedColorsModeBackplate;
layout_object_.Paint(info);
info.phase = PaintPhase::kFloat;
layout_object_.Paint(info);
info.phase = PaintPhase::kForeground;
layout_object_.Paint(info);
info.phase = PaintPhase::kOutline;
layout_object_.Paint(info);
}
} // namespace blink
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