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// Copyright 2019 The Chromium Authors
// 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/layout/ink_overflow.h"
#include "third_party/blink/renderer/core/editing/markers/custom_highlight_marker.h"
#include "third_party/blink/renderer/core/editing/markers/document_marker.h"
#include "third_party/blink/renderer/core/editing/markers/document_marker_controller.h"
#include "third_party/blink/renderer/core/highlight/highlight_style_utils.h"
#include "third_party/blink/renderer/core/layout/geometry/logical_rect.h"
#include "third_party/blink/renderer/core/layout/geometry/writing_mode_converter.h"
#include "third_party/blink/renderer/core/layout/inline/fragment_item.h"
#include "third_party/blink/renderer/core/layout/text_decoration_offset.h"
#include "third_party/blink/renderer/core/paint/highlight_painter.h"
#include "third_party/blink/renderer/core/paint/inline_paint_context.h"
#include "third_party/blink/renderer/core/paint/marker_range_mapping_context.h"
#include "third_party/blink/renderer/core/paint/text_decoration_info.h"
#include "third_party/blink/renderer/core/style/applied_text_decoration.h"
#include "third_party/blink/renderer/core/style/computed_style.h"
#include "third_party/blink/renderer/platform/transforms/affine_transform.h"
#include "third_party/blink/renderer/platform/wtf/size_assertions.h"
namespace blink {
namespace {
struct SameSizeAsInkOverflow {
void* pointer;
#if DCHECK_IS_ON()
InkOverflow::Type type;
#endif
};
ASSERT_SIZE(InkOverflow, SameSizeAsInkOverflow);
inline bool HasOverflow(const PhysicalRect& rect, const PhysicalSize& size) {
if (rect.IsEmpty())
return false;
return rect.X() < 0 || rect.Y() < 0 || rect.Right() > size.width ||
rect.Bottom() > size.height;
}
} // namespace
#if DCHECK_IS_ON()
// Define this for the debugging purpose to DCHECK if uncomputed ink overflow is
// happening. As DCHECK builds ship, enabling this for all DCHECK builds causes
// more troubles than to help.
//
// #define DISALLOW_READING_UNSET
unsigned InkOverflow::read_unset_as_none_ = 0;
InkOverflow::~InkOverflow() {
// Because |Type| is kept outside of the instance, callers must call |Reset|
// before destructing.
DCHECK(type_ == Type::kNotSet || type_ == Type::kNone ||
type_ == Type::kInvalidated)
<< static_cast<int>(type_);
}
#endif
InkOverflow::InkOverflow(Type source_type, const InkOverflow& source) {
source.CheckType(source_type);
new (this) InkOverflow();
switch (source_type) {
case Type::kNotSet:
case Type::kInvalidated:
case Type::kNone:
break;
case Type::kSmallSelf:
case Type::kSmallContents:
static_assert(sizeof(outsets_) == sizeof(single_),
"outsets should be the size of a pointer");
single_ = source.single_;
DCHECK(base::span(outsets_) == base::span(source.outsets_));
break;
case Type::kSelf:
case Type::kContents:
single_ = new SingleInkOverflow(*source.single_);
break;
case Type::kSelfAndContents:
container_ = new ContainerInkOverflow(*source.container_);
break;
}
SetType(source_type);
}
InkOverflow::InkOverflow(Type source_type, InkOverflow&& source) {
source.CheckType(source_type);
new (this) InkOverflow();
switch (source_type) {
case Type::kNotSet:
case Type::kInvalidated:
case Type::kNone:
break;
case Type::kSmallSelf:
case Type::kSmallContents:
static_assert(sizeof(outsets_) == sizeof(single_),
"outsets should be the size of a pointer");
single_ = source.single_;
DCHECK(base::span(outsets_) == base::span(source.outsets_));
break;
case Type::kSelf:
case Type::kContents:
single_ = source.single_;
source.single_ = nullptr;
break;
case Type::kSelfAndContents:
container_ = source.container_;
source.container_ = nullptr;
break;
}
SetType(source_type);
}
InkOverflow::Type InkOverflow::Reset(Type type, Type new_type) {
CheckType(type);
DCHECK(new_type == Type::kNotSet || new_type == Type::kNone ||
new_type == Type::kInvalidated);
switch (type) {
case Type::kNotSet:
case Type::kInvalidated:
case Type::kNone:
case Type::kSmallSelf:
case Type::kSmallContents:
break;
case Type::kSelf:
case Type::kContents:
delete single_;
break;
case Type::kSelfAndContents:
delete container_;
break;
}
return SetType(new_type);
}
PhysicalRect InkOverflow::FromOutsets(const PhysicalSize& size) const {
const LayoutUnit left_outset(LayoutUnit::FromRawValue(outsets_[0]));
const LayoutUnit top_outset(LayoutUnit::FromRawValue(outsets_[1]));
return {-left_outset, -top_outset,
left_outset + size.width + LayoutUnit::FromRawValue(outsets_[2]),
top_outset + size.height + LayoutUnit::FromRawValue(outsets_[3])};
}
PhysicalRect InkOverflow::Self(Type type, const PhysicalSize& size) const {
CheckType(type);
switch (type) {
case Type::kNotSet:
case Type::kInvalidated:
#if defined(DISALLOW_READING_UNSET)
if (!read_unset_as_none_)
NOTREACHED();
[[fallthrough]];
#endif
case Type::kNone:
case Type::kSmallContents:
case Type::kContents:
return {PhysicalOffset(), size};
case Type::kSmallSelf:
return FromOutsets(size);
case Type::kSelf:
case Type::kSelfAndContents:
DCHECK(single_);
return single_->ink_overflow;
}
NOTREACHED();
}
PhysicalRect InkOverflow::Contents(Type type, const PhysicalSize& size) const {
CheckType(type);
switch (type) {
case Type::kNotSet:
case Type::kInvalidated:
#if defined(DISALLOW_READING_UNSET)
if (!read_unset_as_none_)
NOTREACHED();
#endif
case Type::kNone:
case Type::kSmallSelf:
case Type::kSelf:
return PhysicalRect();
case Type::kSmallContents:
return FromOutsets(size);
case Type::kContents:
DCHECK(single_);
return single_->ink_overflow;
case Type::kSelfAndContents:
DCHECK(container_);
return container_->contents_ink_overflow;
}
NOTREACHED();
}
PhysicalRect InkOverflow::SelfAndContents(Type type,
const PhysicalSize& size) const {
CheckType(type);
switch (type) {
case Type::kNotSet:
case Type::kInvalidated:
#if defined(DISALLOW_READING_UNSET)
if (!read_unset_as_none_)
NOTREACHED();
#endif
case Type::kNone:
return {PhysicalOffset(), size};
case Type::kSmallSelf:
case Type::kSmallContents:
return FromOutsets(size);
case Type::kSelf:
case Type::kContents:
DCHECK(single_);
return single_->ink_overflow;
case Type::kSelfAndContents:
DCHECK(container_);
return container_->SelfAndContentsInkOverflow();
}
NOTREACHED();
}
// Store |ink_overflow| as |SmallRawValue| if possible and returns |true|.
// Returns |false| if |ink_overflow| is too large for |SmallRawValue|.
bool InkOverflow::TrySetOutsets(Type type,
LayoutUnit left_outset,
LayoutUnit top_outset,
LayoutUnit right_outset,
LayoutUnit bottom_outset) {
CheckType(type);
const LayoutUnit max_small_value(
LayoutUnit::FromRawValue(std::numeric_limits<SmallRawValue>::max()));
if (left_outset > max_small_value)
return false;
if (top_outset > max_small_value)
return false;
if (right_outset > max_small_value)
return false;
if (bottom_outset > max_small_value)
return false;
Reset(type);
outsets_[0] = left_outset.RawValue();
outsets_[1] = top_outset.RawValue();
outsets_[2] = right_outset.RawValue();
outsets_[3] = bottom_outset.RawValue();
return true;
}
InkOverflow::Type InkOverflow::SetSingle(Type type,
const PhysicalRect& ink_overflow,
const PhysicalSize& size,
Type new_type,
Type new_small_type) {
CheckType(type);
DCHECK(HasOverflow(ink_overflow, size));
const LayoutUnit left_outset = (-ink_overflow.X()).ClampNegativeToZero();
const LayoutUnit top_outset = (-ink_overflow.Y()).ClampNegativeToZero();
const LayoutUnit right_outset =
(ink_overflow.Right() - size.width).ClampNegativeToZero();
const LayoutUnit bottom_outset =
(ink_overflow.Bottom() - size.height).ClampNegativeToZero();
if (TrySetOutsets(type, left_outset, top_outset, right_outset, bottom_outset))
return SetType(new_small_type);
const PhysicalRect adjusted_ink_overflow(
-left_outset, -top_outset, left_outset + size.width + right_outset,
top_outset + size.height + bottom_outset);
switch (type) {
case Type::kSelfAndContents:
Reset(type);
[[fallthrough]];
case Type::kNotSet:
case Type::kInvalidated:
case Type::kNone:
case Type::kSmallSelf:
case Type::kSmallContents:
single_ = new SingleInkOverflow(adjusted_ink_overflow);
return SetType(new_type);
case Type::kSelf:
case Type::kContents:
DCHECK(single_);
single_->ink_overflow = adjusted_ink_overflow;
return SetType(new_type);
}
NOTREACHED();
}
InkOverflow::Type InkOverflow::SetSelf(Type type,
const PhysicalRect& ink_overflow,
const PhysicalSize& size) {
CheckType(type);
if (!HasOverflow(ink_overflow, size))
return Reset(type);
return SetSingle(type, ink_overflow, size, Type::kSelf, Type::kSmallSelf);
}
InkOverflow::Type InkOverflow::SetContents(Type type,
const PhysicalRect& ink_overflow,
const PhysicalSize& size) {
CheckType(type);
if (!HasOverflow(ink_overflow, size))
return Reset(type);
return SetSingle(type, ink_overflow, size, Type::kContents,
Type::kSmallContents);
}
InkOverflow::Type InkOverflow::Set(Type type,
const PhysicalRect& self,
const PhysicalRect& contents,
const PhysicalSize& size) {
CheckType(type);
if (!HasOverflow(self, size)) {
if (!HasOverflow(contents, size))
return Reset(type);
return SetSingle(type, contents, size, Type::kContents,
Type::kSmallContents);
}
if (!HasOverflow(contents, size))
return SetSingle(type, self, size, Type::kSelf, Type::kSmallSelf);
switch (type) {
case Type::kSelf:
case Type::kContents:
Reset(type);
[[fallthrough]];
case Type::kNotSet:
case Type::kInvalidated:
case Type::kNone:
case Type::kSmallSelf:
case Type::kSmallContents:
container_ = new ContainerInkOverflow(self, contents);
return SetType(Type::kSelfAndContents);
case Type::kSelfAndContents:
DCHECK(container_);
container_->ink_overflow = self;
container_->contents_ink_overflow = contents;
return Type::kSelfAndContents;
}
NOTREACHED();
}
InkOverflow::Type InkOverflow::SetTextInkOverflow(
Type type,
const InlineCursor& cursor,
const TextFragmentPaintInfo& text_info,
const ComputedStyle& style,
const PhysicalRect& rect_in_container,
const InlinePaintContext* inline_context,
PhysicalRect* ink_overflow_out) {
CheckType(type);
DCHECK(type == Type::kNotSet || type == Type::kInvalidated);
std::optional<PhysicalRect> ink_overflow =
ComputeTextInkOverflow(cursor, text_info, style, *style.GetFont(),
rect_in_container, inline_context);
if (!ink_overflow) {
*ink_overflow_out = {PhysicalOffset(), rect_in_container.size};
return Reset(type);
}
ink_overflow->ExpandEdgesToPixelBoundaries();
*ink_overflow_out = *ink_overflow;
return SetSelf(type, *ink_overflow, rect_in_container.size);
}
InkOverflow::Type InkOverflow::SetSvgTextInkOverflow(
Type type,
const InlineCursor& cursor,
const TextFragmentPaintInfo& text_info,
const ComputedStyle& style,
const Font& scaled_font,
const gfx::RectF& rect,
float scaling_factor,
float length_adjust_scale,
const AffineTransform& transform,
PhysicalRect* ink_overflow_out) {
CheckType(type);
DCHECK(type == Type::kNotSet || type == Type::kInvalidated);
// Unapply length_adjust_scale because the size argument is compared with
// Font::TextInkBounds().
PhysicalSize item_size =
style.IsHorizontalWritingMode()
? PhysicalSize(LayoutUnit(rect.width() / length_adjust_scale),
LayoutUnit(rect.height()))
: PhysicalSize(LayoutUnit(rect.width()),
LayoutUnit(rect.height() / length_adjust_scale));
// No |inline_context| because the decoration box is not supported for SVG.
std::optional<PhysicalRect> ink_overflow =
ComputeTextInkOverflow(cursor, text_info, style, scaled_font,
PhysicalRect(PhysicalOffset(), item_size),
/* inline_context */ nullptr);
const bool needs_transform =
scaling_factor != 1.0f || !transform.IsIdentity();
PhysicalSize unscaled_size = PhysicalSize::FromSizeFRound(rect.size());
unscaled_size.Scale(1.0f / scaling_factor);
if (!ink_overflow) {
if (needs_transform) {
gfx::RectF transformed_rect = transform.MapRect(rect);
transformed_rect.Offset(-rect.x(), -rect.y());
transformed_rect.Scale(1 / scaling_factor);
*ink_overflow_out = PhysicalRect::EnclosingRect(transformed_rect);
ink_overflow_out->ExpandEdgesToPixelBoundaries();
return SetSelf(type, *ink_overflow_out, unscaled_size);
}
*ink_overflow_out = {PhysicalOffset(), unscaled_size};
ink_overflow_out->ExpandEdgesToPixelBoundaries();
return Reset(type);
}
// Apply length_adjust_scale before applying AffineTransform.
if (style.IsHorizontalWritingMode()) {
ink_overflow->SetX(LayoutUnit(ink_overflow->X() * length_adjust_scale));
ink_overflow->SetWidth(
LayoutUnit(ink_overflow->Width() * length_adjust_scale));
} else {
ink_overflow->SetY(LayoutUnit(ink_overflow->Y() * length_adjust_scale));
ink_overflow->SetHeight(
LayoutUnit(ink_overflow->Height() * length_adjust_scale));
}
if (needs_transform) {
gfx::RectF transformed_rect(*ink_overflow);
transformed_rect.Offset(rect.x(), rect.y());
transformed_rect = transform.MapRect(transformed_rect);
transformed_rect.Offset(-rect.x(), -rect.y());
transformed_rect.Scale(1 / scaling_factor);
*ink_overflow_out = PhysicalRect::EnclosingRect(transformed_rect);
ink_overflow_out->ExpandEdgesToPixelBoundaries();
return SetSelf(type, *ink_overflow_out, unscaled_size);
}
*ink_overflow_out = *ink_overflow;
ink_overflow_out->ExpandEdgesToPixelBoundaries();
return SetSelf(type, *ink_overflow, unscaled_size);
}
// static
std::optional<PhysicalRect> InkOverflow::ComputeTextInkOverflow(
const InlineCursor& cursor,
const TextFragmentPaintInfo& text_info,
const ComputedStyle& style,
const Font& scaled_font,
const PhysicalRect& rect_in_container,
const InlinePaintContext* inline_context) {
// Glyph bounds is in logical coordinate, origin at the alphabetic baseline.
const gfx::RectF text_ink_bounds = scaled_font.TextInkBounds(text_info);
LogicalRect ink_overflow = LogicalRect::EnclosingRect(text_ink_bounds);
const WritingMode writing_mode = style.GetWritingMode();
// Make the origin at the logical top of this fragment.
if (const SimpleFontData* font_data = scaled_font.PrimaryFont()) {
ink_overflow.offset.block_offset +=
font_data->GetFontMetrics().FixedAscent(kAlphabeticBaseline);
}
if (float stroke_width = style.TextStrokeWidth()) {
ink_overflow.Inflate(LayoutUnit::FromFloatCeil(stroke_width / 2.0f));
}
// Following effects, such as shadows, operate on the text decorations,
// so compute text decoration overflow first.
LogicalRect decoration_rect = ComputeDecorationOverflow(
cursor, style, scaled_font, rect_in_container.offset, ink_overflow,
inline_context, writing_mode);
ink_overflow.Unite(decoration_rect);
if (style.GetTextEmphasisMark() != TextEmphasisMark::kNone) {
ink_overflow = ComputeEmphasisMarkOverflow(style, rect_in_container.size,
ink_overflow);
}
if (const ShadowList* text_shadow = style.TextShadow()) {
ExpandForShadowOverflow(ink_overflow, *text_shadow, writing_mode);
}
PhysicalRect local_ink_overflow =
WritingModeConverter({writing_mode, TextDirection::kLtr},
rect_in_container.size)
.ToPhysical(ink_overflow);
// Uniting the frame rect ensures that non-ink spaces such side bearings, or
// even space characters, are included in the visual rect for decorations.
if (!HasOverflow(local_ink_overflow, rect_in_container.size))
return std::nullopt;
local_ink_overflow.Unite({{}, rect_in_container.size});
return local_ink_overflow;
}
// static
LogicalRect InkOverflow::ComputeEmphasisMarkOverflow(
const ComputedStyle& style,
const PhysicalSize& size,
const LogicalRect& ink_overflow_in) {
DCHECK(style.GetTextEmphasisMark() != TextEmphasisMark::kNone);
LayoutUnit emphasis_mark_height = LayoutUnit(
style.GetFont()->EmphasisMarkHeight(style.TextEmphasisMarkString()));
DCHECK_GE(emphasis_mark_height, LayoutUnit());
LogicalRect ink_overflow = ink_overflow_in;
if (style.GetTextEmphasisLineLogicalSide() == LineLogicalSide::kOver) {
ink_overflow.ShiftBlockStartEdgeTo(
std::min(ink_overflow.offset.block_offset, -emphasis_mark_height));
} else {
LayoutUnit logical_height =
style.IsHorizontalWritingMode() ? size.height : size.width;
ink_overflow.ShiftBlockEndEdgeTo(std::max(
ink_overflow.BlockEndOffset(), logical_height + emphasis_mark_height));
}
return ink_overflow;
}
// static
void InkOverflow::ExpandForShadowOverflow(LogicalRect& ink_overflow,
const ShadowList& text_shadow,
const WritingMode writing_mode) {
LineBoxStrut text_shadow_logical_outsets =
PhysicalBoxStrut::Enclosing(text_shadow.RectOutsetsIncludingOriginal())
.ConvertToLineLogical({writing_mode, TextDirection::kLtr});
ink_overflow.ExpandEdges(
text_shadow_logical_outsets.line_over.ClampNegativeToZero(),
text_shadow_logical_outsets.inline_end.ClampNegativeToZero(),
text_shadow_logical_outsets.line_under.ClampNegativeToZero(),
text_shadow_logical_outsets.inline_start.ClampNegativeToZero());
}
// static
LogicalRect InkOverflow::ComputeDecorationOverflow(
const InlineCursor& cursor,
const ComputedStyle& style,
const Font& scaled_font,
const PhysicalOffset& container_offset,
const LogicalRect& ink_overflow,
const InlinePaintContext* inline_context,
const WritingMode writing_mode) {
LogicalRect accumulated_bound = ink_overflow;
if (!scaled_font.PrimaryFont()) {
return accumulated_bound;
}
// Text decoration from the fragment's style.
if (style.HasAppliedTextDecorations()) {
accumulated_bound = ComputeAppliedDecorationOverflow(
style, scaled_font, container_offset, ink_overflow, inline_context);
}
// Text decorations due to selection
if (cursor.Current().GetLayoutObject()->IsSelected()) [[unlikely]] {
const ComputedStyle* selection_style = style.HighlightData().Selection();
if (selection_style) {
if (selection_style->HasAppliedTextDecorations()) {
LogicalRect selection_bound = ComputeAppliedDecorationOverflow(
*selection_style, scaled_font, container_offset, ink_overflow,
inline_context);
accumulated_bound.Unite(selection_bound);
}
if (const ShadowList* text_shadow = selection_style->TextShadow()) {
ExpandForShadowOverflow(accumulated_bound, *text_shadow, writing_mode);
}
}
}
// To extract decorations due to markers, we need a fragment item and a
// node. Ideally we would use cursor.Current().GetNode() but that's const
// and the style functions we need to access pseudo styles take non-const
// nodes.
const FragmentItem* fragment_item = cursor.CurrentItem();
if (!fragment_item->IsText() || fragment_item->IsSvgText() ||
fragment_item->IsGeneratedText()) {
return accumulated_bound;
}
const LayoutObject* layout_object = cursor.Current().GetLayoutObject();
DCHECK(layout_object);
Text* text_node = DynamicTo<Text>(layout_object->GetNode());
// ::first-letter passes the IsGeneratedText check but has no text node.
if (!text_node) {
return accumulated_bound;
}
DocumentMarkerController& controller = text_node->GetDocument().Markers();
if (!controller.HasAnyMarkersForText(*text_node)) {
return accumulated_bound;
}
TextOffsetRange fragment_dom_offsets =
HighlightPainter::GetFragmentDOMOffsets(
*text_node, fragment_item->StartOffset(), fragment_item->EndOffset());
DocumentMarkerVector target_markers = controller.MarkersFor(
*text_node, DocumentMarker::kTextFragment, fragment_dom_offsets.start,
fragment_dom_offsets.end);
if (!target_markers.empty()) {
LogicalRect target_bound = ComputeMarkerOverflow(
target_markers, DocumentMarker::kTextFragment, fragment_item,
fragment_dom_offsets, text_node, style, scaled_font, container_offset,
ink_overflow, inline_context, writing_mode);
accumulated_bound.Unite(target_bound);
}
DocumentMarkerVector custom_markers = controller.MarkersFor(
*text_node, DocumentMarker::kCustomHighlight, fragment_dom_offsets.start,
fragment_dom_offsets.end);
if (!custom_markers.empty()) {
LogicalRect custom_bound = ComputeCustomHighlightOverflow(
custom_markers, fragment_item, fragment_dom_offsets, text_node, style,
scaled_font, container_offset, ink_overflow, inline_context);
accumulated_bound.Unite(custom_bound);
}
DocumentMarkerVector spelling_markers = controller.MarkersFor(
*text_node, DocumentMarker::kSpelling, fragment_dom_offsets.start,
fragment_dom_offsets.end);
if (!spelling_markers.empty()) {
LogicalRect spelling_bound = ComputeMarkerOverflow(
spelling_markers, DocumentMarker::kSpelling, fragment_item,
fragment_dom_offsets, text_node, style, scaled_font, container_offset,
ink_overflow, inline_context, writing_mode);
accumulated_bound.Unite(spelling_bound);
}
DocumentMarkerVector grammar_markers = controller.MarkersFor(
*text_node, DocumentMarker::kGrammar, fragment_dom_offsets.start,
fragment_dom_offsets.end);
if (!grammar_markers.empty()) {
LogicalRect grammar_bound = ComputeMarkerOverflow(
grammar_markers, DocumentMarker::kGrammar, fragment_item,
fragment_dom_offsets, text_node, style, scaled_font, container_offset,
ink_overflow, inline_context, writing_mode);
accumulated_bound.Unite(grammar_bound);
}
return accumulated_bound;
}
LogicalRect InkOverflow::ComputeAppliedDecorationOverflow(
const ComputedStyle& style,
const Font& scaled_font,
const PhysicalOffset& offset_in_container,
const LogicalRect& ink_overflow,
const InlinePaintContext* inline_context,
const AppliedTextDecoration* decoration_override) {
DCHECK(style.HasAppliedTextDecorations() || decoration_override);
// SVGText is currently the only reason we use decoration_override,
// so use it as a proxy for determining minimum thickness.
const MinimumThickness1 kMinimumThicknessIsOne(!decoration_override);
TextDecorationInfo decoration_info(
LineRelativeOffset::CreateFromBoxOrigin(offset_in_container),
ink_overflow.size.inline_size, style, inline_context,
TextDecorationLine::kNone, Color(), decoration_override, &scaled_font,
kMinimumThicknessIsOne);
TextDecorationOffset decoration_offset(style);
gfx::RectF accumulated_bound;
for (wtf_size_t i = 0; i < decoration_info.AppliedDecorationCount(); i++) {
decoration_info.SetDecorationIndex(i);
if (decoration_info.HasUnderline()) {
decoration_info.SetUnderlineLineData(decoration_offset);
accumulated_bound.Union(decoration_info.Bounds());
}
if (decoration_info.HasOverline()) {
decoration_info.SetOverlineLineData(decoration_offset);
accumulated_bound.Union(decoration_info.Bounds());
}
if (decoration_info.HasLineThrough()) {
decoration_info.SetLineThroughLineData();
accumulated_bound.Union(decoration_info.Bounds());
}
if (decoration_info.HasSpellingError() ||
decoration_info.HasGrammarError()) {
decoration_info.SetSpellingOrGrammarErrorLineData(decoration_offset);
accumulated_bound.Union(decoration_info.Bounds());
}
}
// Adjust the container coordinate system to the local coordinate system.
accumulated_bound -= gfx::Vector2dF(offset_in_container);
return LogicalRect::EnclosingRect(accumulated_bound);
}
LogicalRect InkOverflow::ComputeMarkerOverflow(
const DocumentMarkerVector& markers,
const DocumentMarker::MarkerType type,
const FragmentItem* fragment_item,
const TextOffsetRange& fragment_dom_offsets,
Text* text_node,
const ComputedStyle& style,
const Font& scaled_font,
const PhysicalOffset& offset_in_container,
const LogicalRect& ink_overflow,
const InlinePaintContext* inline_context,
const WritingMode writing_mode) {
DCHECK(!fragment_item->IsSvgText());
LogicalRect accumulated_bound = ink_overflow;
auto* pseudo_style = HighlightStyleUtils::HighlightPseudoStyle(
text_node, style, HighlightPainter::PseudoFor(type));
const ShadowList* text_shadow =
pseudo_style ? pseudo_style->TextShadow() : nullptr;
bool has_pseudo_decorations =
pseudo_style && pseudo_style->HasAppliedTextDecorations();
bool is_spelling_or_grammar =
type == DocumentMarker::kSpelling || type == DocumentMarker::kGrammar;
if (has_pseudo_decorations || is_spelling_or_grammar || text_shadow) {
MarkerRangeMappingContext mapping_context(*text_node, fragment_dom_offsets);
for (auto marker : markers) {
std::optional<TextOffsetRange> marker_offsets =
mapping_context.GetTextContentOffsets(*marker);
if (!marker_offsets) {
continue;
}
LogicalRect decoration_bound;
if (has_pseudo_decorations) {
decoration_bound = ComputeAppliedDecorationOverflow(
*pseudo_style, scaled_font, offset_in_container, ink_overflow,
inline_context);
} else if (is_spelling_or_grammar) {
const AppliedTextDecoration synthesised{
HighlightPainter::LineFor(type),
{},
HighlightPainter::ColorFor(type),
{},
{}};
decoration_bound = ComputeAppliedDecorationOverflow(
style, scaled_font, offset_in_container, ink_overflow,
inline_context, &synthesised);
}
accumulated_bound.Unite(decoration_bound);
if (text_shadow) [[unlikely]] {
ExpandForShadowOverflow(accumulated_bound, *text_shadow, writing_mode);
}
}
}
return accumulated_bound;
}
LogicalRect InkOverflow::ComputeCustomHighlightOverflow(
const DocumentMarkerVector& markers,
const FragmentItem* fragment_item,
const TextOffsetRange& fragment_dom_offsets,
Text* text_node,
const ComputedStyle& style,
const Font& scaled_font,
const PhysicalOffset& offset_in_container,
const LogicalRect& ink_overflow,
const InlinePaintContext* inline_context) {
DCHECK(!fragment_item->IsSvgText());
LogicalRect accumulated_bound;
MarkerRangeMappingContext mapping_context(*text_node, fragment_dom_offsets);
for (auto marker : markers) {
std::optional<TextOffsetRange> marker_offsets =
mapping_context.GetTextContentOffsets(*marker);
if (!marker_offsets) {
return LogicalRect();
}
const CustomHighlightMarker& highlight_marker =
To<CustomHighlightMarker>(*marker);
const auto* pseudo_style = HighlightStyleUtils::HighlightPseudoStyle(
text_node, style, kPseudoIdHighlight,
highlight_marker.GetHighlightName());
LogicalRect decoration_bound;
if (pseudo_style && pseudo_style->HasAppliedTextDecorations()) {
decoration_bound = ComputeAppliedDecorationOverflow(
*pseudo_style, scaled_font, offset_in_container, ink_overflow,
inline_context);
accumulated_bound.Unite(decoration_bound);
}
}
return accumulated_bound;
}
} // namespace blink
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