third_party/WebKit/Source/core/layout/svg/line/SVGInlineTextBox.cpp - chromium/src - Git at Google

 /*
  * Copyright (C) 2007 Rob Buis <buis@kde.org>
  * Copyright (C) 2007 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */

 #include "core/layout/svg/line/SVGInlineTextBox.h"

 #include "core/layout/HitTestResult.h"
 #include "core/layout/PointerEventsHitRules.h"
 #include "core/layout/api/LineLayoutSVGInlineText.h"
 #include "core/layout/svg/LayoutSVGInlineText.h"
 #include "core/paint/SVGInlineTextBoxPainter.h"
 #include "platform/wtf/MathExtras.h"

 namespace blink {

 struct ExpectedSVGInlineTextBoxSize : public InlineTextBox {
   LayoutUnit float1;
   uint32_t bitfields : 1;
   Vector<SVGTextFragment> vector;
 };

 static_assert(sizeof(SVGInlineTextBox) == sizeof(ExpectedSVGInlineTextBoxSize),
               "SVGInlineTextBox has an unexpected size");

 SVGInlineTextBox::SVGInlineTextBox(LineLayoutItem item,
                                    int start,
                                    unsigned short length)
     : InlineTextBox(item, start, length), starts_new_text_chunk_(false) {}

 void SVGInlineTextBox::DirtyLineBoxes() {
   InlineTextBox::DirtyLineBoxes();

   // Clear the now stale text fragments.
   ClearTextFragments();

   // And clear any following text fragments as the text on which they depend may
   // now no longer exist, or glyph positions may be wrong.
   InlineTextBox* next_box = NextTextBox();
   if (next_box)
     next_box->DirtyLineBoxes();
 }

 int SVGInlineTextBox::OffsetForPosition(LayoutUnit, bool) const {
   // SVG doesn't use the standard offset <-> position selection system, as it's
   // not suitable for SVGs complex needs. Vertical text selection, inline boxes
   // spanning multiple lines (contrary to HTML, etc.)
   NOTREACHED();
   return 0;
 }

 int SVGInlineTextBox::OffsetForPositionInFragment(
     const SVGTextFragment& fragment,
     LayoutUnit position,
     bool include_partial_glyphs) const {
   LineLayoutSVGInlineText line_layout_item =
       LineLayoutSVGInlineText(this->GetLineLayoutItem());

   float scaling_factor = line_layout_item.ScalingFactor();
   DCHECK(scaling_factor);

   const ComputedStyle& style = line_layout_item.StyleRef();

   TextRun text_run = ConstructTextRun(style, fragment);

   // Eventually handle lengthAdjust="spacingAndGlyphs".
   // FIXME: Handle vertical text.
   if (fragment.IsTransformed()) {
     AffineTransform fragment_transform = fragment.BuildFragmentTransform();
     text_run.SetHorizontalGlyphStretch(
         clampTo<float>(fragment_transform.XScale()));
   }

   return fragment.character_offset - Start() +
          line_layout_item.ScaledFont().OffsetForPosition(
              text_run, position * scaling_factor, include_partial_glyphs);
 }

 LayoutUnit SVGInlineTextBox::PositionForOffset(int) const {
   // SVG doesn't use the offset <-> position selection system.
   NOTREACHED();
   return LayoutUnit();
 }

 FloatRect SVGInlineTextBox::SelectionRectForTextFragment(
     const SVGTextFragment& fragment,
     int start_position,
     int end_position,
     const ComputedStyle& style) const {
   DCHECK_LT(start_position, end_position);

   LineLayoutSVGInlineText line_layout_item =
       LineLayoutSVGInlineText(this->GetLineLayoutItem());

   float scaling_factor = line_layout_item.ScalingFactor();
   DCHECK(scaling_factor);

   const Font& scaled_font = line_layout_item.ScaledFont();
   const SimpleFontData* font_data = scaled_font.PrimaryFont();
   DCHECK(font_data);
   if (!font_data)
     return FloatRect();

   const FontMetrics& scaled_font_metrics = font_data->GetFontMetrics();
   FloatPoint text_origin(fragment.x, fragment.y);
   if (scaling_factor != 1)
     text_origin.Scale(scaling_factor, scaling_factor);

   text_origin.Move(0, -scaled_font_metrics.FloatAscent());

   FloatRect selection_rect = scaled_font.SelectionRectForText(
       ConstructTextRun(style, fragment), text_origin,
       fragment.height * scaling_factor, start_position, end_position);
   if (scaling_factor == 1)
     return selection_rect;

   selection_rect.Scale(1 / scaling_factor);
   return selection_rect;
 }

 LayoutRect SVGInlineTextBox::LocalSelectionRect(int start_position,
                                                 int end_position) const {
   int box_start = Start();
   start_position = std::max(start_position - box_start, 0);
   end_position = std::min(end_position - box_start, static_cast<int>(Len()));
   if (start_position >= end_position)
     return LayoutRect();

   const ComputedStyle& style = GetLineLayoutItem().StyleRef();

   FloatRect selection_rect;
   int fragment_start_position = 0;
   int fragment_end_position = 0;

   unsigned text_fragments_size = text_fragments_.size();
   for (unsigned i = 0; i < text_fragments_size; ++i) {
     const SVGTextFragment& fragment = text_fragments_.at(i);

     fragment_start_position = start_position;
     fragment_end_position = end_position;
     if (!MapStartEndPositionsIntoFragmentCoordinates(
             fragment, fragment_start_position, fragment_end_position))
       continue;

     FloatRect fragment_rect = SelectionRectForTextFragment(
         fragment, fragment_start_position, fragment_end_position, style);
     if (fragment.IsTransformed())
       fragment_rect = fragment.BuildFragmentTransform().MapRect(fragment_rect);

     selection_rect.Unite(fragment_rect);
   }

   return LayoutRect(EnclosingIntRect(selection_rect));
 }

 void SVGInlineTextBox::Paint(const PaintInfo& paint_info,
                              const LayoutPoint& paint_offset,
                              LayoutUnit,
                              LayoutUnit) const {
   SVGInlineTextBoxPainter(*this).Paint(paint_info, paint_offset);
 }

 TextRun SVGInlineTextBox::ConstructTextRun(
     const ComputedStyle& style,
     const SVGTextFragment& fragment) const {
   LineLayoutText text = GetLineLayoutItem();
   CHECK(!text.NeedsLayout());

   TextRun run(
       // characters, will be set below if non-zero.
       static_cast<const LChar*>(nullptr),
       0,  // length, will be set below if non-zero.
       0,  // xPos, only relevant with allowTabs=true
       0,  // padding, only relevant for justified text, not relevant for SVG
       TextRun::kAllowTrailingExpansion, Direction(),
       DirOverride() ||
           style.RtlOrdering() == EOrder::kVisual /* directionalOverride */);

   if (fragment.length) {
     if (text.Is8Bit())
       run.SetText(text.Characters8() + fragment.character_offset,
                   fragment.length);
     else
       run.SetText(text.Characters16() + fragment.character_offset,
                   fragment.length);
   }

   // We handle letter & word spacing ourselves.
   run.DisableSpacing();

   // Propagate the maximum length of the characters buffer to the TextRun, even
   // when we're only processing a substring.
   run.SetCharactersLength(text.TextLength() - fragment.character_offset);
   DCHECK_GE(run.CharactersLength(), run.length());
   return run;
 }

 bool SVGInlineTextBox::MapStartEndPositionsIntoFragmentCoordinates(
     const SVGTextFragment& fragment,
     int& start_position,
     int& end_position) const {
   int fragment_offset_in_box =
       static_cast<int>(fragment.character_offset) - Start();

   // Compute positions relative to the fragment.
   start_position -= fragment_offset_in_box;
   end_position -= fragment_offset_in_box;

   // Intersect with the fragment range.
   start_position = std::max(start_position, 0);
   end_position = std::min(end_position, static_cast<int>(fragment.length));

   return start_position < end_position;
 }

 void SVGInlineTextBox::PaintDocumentMarker(GraphicsContext&,
                                            const LayoutPoint&,
                                            const DocumentMarker&,
                                            const ComputedStyle&,
                                            const Font&,
                                            bool) const {
   // SVG does not have support for generic document markers (e.g.,
   // spellchecking, etc).
 }

 void SVGInlineTextBox::PaintTextMatchMarkerForeground(
     const PaintInfo& paint_info,
     const LayoutPoint& point,
     const TextMatchMarker& marker,
     const ComputedStyle& style,
     const Font& font) const {
   SVGInlineTextBoxPainter(*this).PaintTextMatchMarkerForeground(
       paint_info, point, marker, style, font);
 }

 void SVGInlineTextBox::PaintTextMatchMarkerBackground(
     const PaintInfo& paint_info,
     const LayoutPoint& point,
     const TextMatchMarker& marker,
     const ComputedStyle& style,
     const Font& font) const {
   SVGInlineTextBoxPainter(*this).PaintTextMatchMarkerBackground(
       paint_info, point, marker, style, font);
 }

 LayoutRect SVGInlineTextBox::CalculateBoundaries() const {
   LineLayoutSVGInlineText line_layout_item =
       LineLayoutSVGInlineText(this->GetLineLayoutItem());
   const SimpleFontData* font_data = line_layout_item.ScaledFont().PrimaryFont();
   DCHECK(font_data);
   if (!font_data)
     return LayoutRect();

   float scaling_factor = line_layout_item.ScalingFactor();
   DCHECK(scaling_factor);
   LayoutUnit baseline(font_data->GetFontMetrics().FloatAscent() /
                       scaling_factor);

   LayoutRect text_bounding_rect;
   for (const SVGTextFragment& fragment : text_fragments_)
     text_bounding_rect.Unite(
         LayoutRect(fragment.OverflowBoundingBox(baseline)));

   return text_bounding_rect;
 }

 bool SVGInlineTextBox::NodeAtPoint(HitTestResult& result,
                                    const HitTestLocation& location_in_container,
                                    const LayoutPoint& accumulated_offset,
                                    LayoutUnit,
                                    LayoutUnit) {
   // FIXME: integrate with InlineTextBox::nodeAtPoint better.
   DCHECK(!IsLineBreak());

   PointerEventsHitRules hit_rules(PointerEventsHitRules::SVG_TEXT_HITTESTING,
                                   result.GetHitTestRequest(),
                                   GetLineLayoutItem().Style()->PointerEvents());
   bool is_visible =
       GetLineLayoutItem().Style()->Visibility() == EVisibility::kVisible;
   if (is_visible || !hit_rules.require_visible) {
     if (hit_rules.can_hit_bounding_box ||
         (hit_rules.can_hit_stroke &&
          (GetLineLayoutItem().Style()->SvgStyle().HasStroke() ||
           !hit_rules.require_stroke)) ||
         (hit_rules.can_hit_fill &&
          (GetLineLayoutItem().Style()->SvgStyle().HasFill() ||
           !hit_rules.require_fill))) {
       LayoutRect rect(Location(), Size());
       rect.MoveBy(accumulated_offset);
       if (location_in_container.Intersects(rect)) {
         LineLayoutSVGInlineText line_layout_item =
             LineLayoutSVGInlineText(this->GetLineLayoutItem());
         const SimpleFontData* font_data =
             line_layout_item.ScaledFont().PrimaryFont();
         DCHECK(font_data);
         if (!font_data)
           return false;

         DCHECK(line_layout_item.ScalingFactor());
         float baseline = font_data->GetFontMetrics().FloatAscent() /
                          line_layout_item.ScalingFactor();
         FloatPoint float_location = FloatPoint(location_in_container.Point());
         for (const SVGTextFragment& fragment : text_fragments_) {
           FloatQuad fragment_quad = fragment.BoundingQuad(baseline);
           if (fragment_quad.ContainsPoint(float_location)) {
             line_layout_item.UpdateHitTestResult(
                 result, location_in_container.Point() -
                             ToLayoutSize(accumulated_offset));
             if (result.AddNodeToListBasedTestResult(line_layout_item.GetNode(),
                                                     location_in_container,
                                                     rect) == kStopHitTesting)
               return true;
           }
         }
       }
     }
   }
   return false;
 }

 }  // namespace blink
	/*
	* Copyright (C) 2007 Rob Buis <buis@kde.org>
	* Copyright (C) 2007 Nikolas Zimmermann <zimmermann@kde.org>
	* Copyright (C) Research In Motion Limited 2010. All rights reserved.
	*
	* This library is free software; you can redistribute it and/or
	* modify it under the terms of the GNU Library General Public
	* License as published by the Free Software Foundation; either
	* version 2 of the License, or (at your option) any later version.
	*
	* This library is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	* Library General Public License for more details.
	*
	* You should have received a copy of the GNU Library General Public License
	* along with this library; see the file COPYING.LIB. If not, write to
	* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
	* Boston, MA 02110-1301, USA.
	*/

	#include "core/layout/svg/line/SVGInlineTextBox.h"

	#include "core/layout/HitTestResult.h"
	#include "core/layout/PointerEventsHitRules.h"
	#include "core/layout/api/LineLayoutSVGInlineText.h"
	#include "core/layout/svg/LayoutSVGInlineText.h"
	#include "core/paint/SVGInlineTextBoxPainter.h"
	#include "platform/wtf/MathExtras.h"

	namespace blink {

	struct ExpectedSVGInlineTextBoxSize : public InlineTextBox {
	LayoutUnit float1;
	uint32_t bitfields : 1;
	Vector<SVGTextFragment> vector;
	};

	static_assert(sizeof(SVGInlineTextBox) == sizeof(ExpectedSVGInlineTextBoxSize),
	"SVGInlineTextBox has an unexpected size");

	SVGInlineTextBox::SVGInlineTextBox(LineLayoutItem item,
	int start,
	unsigned short length)
	: InlineTextBox(item, start, length), starts_new_text_chunk_(false) {}

	void SVGInlineTextBox::DirtyLineBoxes() {
	InlineTextBox::DirtyLineBoxes();

	// Clear the now stale text fragments.
	ClearTextFragments();

	// And clear any following text fragments as the text on which they depend may
	// now no longer exist, or glyph positions may be wrong.
	InlineTextBox* next_box = NextTextBox();
	if (next_box)
	next_box->DirtyLineBoxes();
	}

	int SVGInlineTextBox::OffsetForPosition(LayoutUnit, bool) const {
	// SVG doesn't use the standard offset <-> position selection system, as it's
	// not suitable for SVGs complex needs. Vertical text selection, inline boxes
	// spanning multiple lines (contrary to HTML, etc.)
	NOTREACHED();
	return 0;
	}

	int SVGInlineTextBox::OffsetForPositionInFragment(
	const SVGTextFragment& fragment,
	LayoutUnit position,
	bool include_partial_glyphs) const {
	LineLayoutSVGInlineText line_layout_item =
	LineLayoutSVGInlineText(this->GetLineLayoutItem());

	float scaling_factor = line_layout_item.ScalingFactor();
	DCHECK(scaling_factor);

	const ComputedStyle& style = line_layout_item.StyleRef();

	TextRun text_run = ConstructTextRun(style, fragment);

	// Eventually handle lengthAdjust="spacingAndGlyphs".
	// FIXME: Handle vertical text.
	if (fragment.IsTransformed()) {
	AffineTransform fragment_transform = fragment.BuildFragmentTransform();
	text_run.SetHorizontalGlyphStretch(
	clampTo<float>(fragment_transform.XScale()));
	}

	return fragment.character_offset - Start() +
	line_layout_item.ScaledFont().OffsetForPosition(
	text_run, position * scaling_factor, include_partial_glyphs);
	}

	LayoutUnit SVGInlineTextBox::PositionForOffset(int) const {
	// SVG doesn't use the offset <-> position selection system.
	NOTREACHED();
	return LayoutUnit();
	}

	FloatRect SVGInlineTextBox::SelectionRectForTextFragment(
	const SVGTextFragment& fragment,
	int start_position,
	int end_position,
	const ComputedStyle& style) const {
	DCHECK_LT(start_position, end_position);

	LineLayoutSVGInlineText line_layout_item =
	LineLayoutSVGInlineText(this->GetLineLayoutItem());

	float scaling_factor = line_layout_item.ScalingFactor();
	DCHECK(scaling_factor);

	const Font& scaled_font = line_layout_item.ScaledFont();
	const SimpleFontData* font_data = scaled_font.PrimaryFont();
	DCHECK(font_data);
	if (!font_data)
	return FloatRect();

	const FontMetrics& scaled_font_metrics = font_data->GetFontMetrics();
	FloatPoint text_origin(fragment.x, fragment.y);
	if (scaling_factor != 1)
	text_origin.Scale(scaling_factor, scaling_factor);

	text_origin.Move(0, -scaled_font_metrics.FloatAscent());

	FloatRect selection_rect = scaled_font.SelectionRectForText(
	ConstructTextRun(style, fragment), text_origin,
	fragment.height * scaling_factor, start_position, end_position);
	if (scaling_factor == 1)
	return selection_rect;

	selection_rect.Scale(1 / scaling_factor);
	return selection_rect;
	}

	LayoutRect SVGInlineTextBox::LocalSelectionRect(int start_position,
	int end_position) const {
	int box_start = Start();
	start_position = std::max(start_position - box_start, 0);
	end_position = std::min(end_position - box_start, static_cast<int>(Len()));
	if (start_position >= end_position)
	return LayoutRect();

	const ComputedStyle& style = GetLineLayoutItem().StyleRef();

	FloatRect selection_rect;
	int fragment_start_position = 0;
	int fragment_end_position = 0;

	unsigned text_fragments_size = text_fragments_.size();
	for (unsigned i = 0; i < text_fragments_size; ++i) {
	const SVGTextFragment& fragment = text_fragments_.at(i);

	fragment_start_position = start_position;
	fragment_end_position = end_position;
	if (!MapStartEndPositionsIntoFragmentCoordinates(
	fragment, fragment_start_position, fragment_end_position))
	continue;

	FloatRect fragment_rect = SelectionRectForTextFragment(
	fragment, fragment_start_position, fragment_end_position, style);
	if (fragment.IsTransformed())
	fragment_rect = fragment.BuildFragmentTransform().MapRect(fragment_rect);

	selection_rect.Unite(fragment_rect);
	}

	return LayoutRect(EnclosingIntRect(selection_rect));
	}

	void SVGInlineTextBox::Paint(const PaintInfo& paint_info,
	const LayoutPoint& paint_offset,
	LayoutUnit,
	LayoutUnit) const {
	SVGInlineTextBoxPainter(*this).Paint(paint_info, paint_offset);
	}

	TextRun SVGInlineTextBox::ConstructTextRun(
	const ComputedStyle& style,
	const SVGTextFragment& fragment) const {
	LineLayoutText text = GetLineLayoutItem();
	CHECK(!text.NeedsLayout());

	TextRun run(
	// characters, will be set below if non-zero.
	static_cast<const LChar*>(nullptr),
	0, // length, will be set below if non-zero.
	0, // xPos, only relevant with allowTabs=true
	0, // padding, only relevant for justified text, not relevant for SVG
	TextRun::kAllowTrailingExpansion, Direction(),
	DirOverride() \|\|
	style.RtlOrdering() == EOrder::kVisual /* directionalOverride */);

	if (fragment.length) {
	if (text.Is8Bit())
	run.SetText(text.Characters8() + fragment.character_offset,
	fragment.length);
	else
	run.SetText(text.Characters16() + fragment.character_offset,
	fragment.length);
	}

	// We handle letter & word spacing ourselves.
	run.DisableSpacing();

	// Propagate the maximum length of the characters buffer to the TextRun, even
	// when we're only processing a substring.
	run.SetCharactersLength(text.TextLength() - fragment.character_offset);
	DCHECK_GE(run.CharactersLength(), run.length());
	return run;
	}

	bool SVGInlineTextBox::MapStartEndPositionsIntoFragmentCoordinates(
	const SVGTextFragment& fragment,
	int& start_position,
	int& end_position) const {
	int fragment_offset_in_box =
	static_cast<int>(fragment.character_offset) - Start();

	// Compute positions relative to the fragment.
	start_position -= fragment_offset_in_box;
	end_position -= fragment_offset_in_box;

	// Intersect with the fragment range.
	start_position = std::max(start_position, 0);
	end_position = std::min(end_position, static_cast<int>(fragment.length));

	return start_position < end_position;
	}

	void SVGInlineTextBox::PaintDocumentMarker(GraphicsContext&,
	const LayoutPoint&,
	const DocumentMarker&,
	const ComputedStyle&,
	const Font&,
	bool) const {
	// SVG does not have support for generic document markers (e.g.,
	// spellchecking, etc).
	}

	void SVGInlineTextBox::PaintTextMatchMarkerForeground(
	const PaintInfo& paint_info,
	const LayoutPoint& point,
	const TextMatchMarker& marker,
	const ComputedStyle& style,
	const Font& font) const {
	SVGInlineTextBoxPainter(*this).PaintTextMatchMarkerForeground(
	paint_info, point, marker, style, font);
	}

	void SVGInlineTextBox::PaintTextMatchMarkerBackground(
	const PaintInfo& paint_info,
	const LayoutPoint& point,
	const TextMatchMarker& marker,
	const ComputedStyle& style,
	const Font& font) const {
	SVGInlineTextBoxPainter(*this).PaintTextMatchMarkerBackground(
	paint_info, point, marker, style, font);
	}

	LayoutRect SVGInlineTextBox::CalculateBoundaries() const {
	LineLayoutSVGInlineText line_layout_item =
	LineLayoutSVGInlineText(this->GetLineLayoutItem());
	const SimpleFontData* font_data = line_layout_item.ScaledFont().PrimaryFont();
	DCHECK(font_data);
	if (!font_data)
	return LayoutRect();

	float scaling_factor = line_layout_item.ScalingFactor();
	DCHECK(scaling_factor);
	LayoutUnit baseline(font_data->GetFontMetrics().FloatAscent() /
	scaling_factor);

	LayoutRect text_bounding_rect;
	for (const SVGTextFragment& fragment : text_fragments_)
	text_bounding_rect.Unite(
	LayoutRect(fragment.OverflowBoundingBox(baseline)));

	return text_bounding_rect;
	}

	bool SVGInlineTextBox::NodeAtPoint(HitTestResult& result,
	const HitTestLocation& location_in_container,
	const LayoutPoint& accumulated_offset,
	LayoutUnit,
	LayoutUnit) {
	// FIXME: integrate with InlineTextBox::nodeAtPoint better.
	DCHECK(!IsLineBreak());

	PointerEventsHitRules hit_rules(PointerEventsHitRules::SVG_TEXT_HITTESTING,
	result.GetHitTestRequest(),
	GetLineLayoutItem().Style()->PointerEvents());
	bool is_visible =
	GetLineLayoutItem().Style()->Visibility() == EVisibility::kVisible;
	if (is_visible \|\| !hit_rules.require_visible) {
	if (hit_rules.can_hit_bounding_box \|\|
	(hit_rules.can_hit_stroke &&
	(GetLineLayoutItem().Style()->SvgStyle().HasStroke() \|\|
	!hit_rules.require_stroke)) \|\|
	(hit_rules.can_hit_fill &&
	(GetLineLayoutItem().Style()->SvgStyle().HasFill() \|\|
	!hit_rules.require_fill))) {
	LayoutRect rect(Location(), Size());
	rect.MoveBy(accumulated_offset);
	if (location_in_container.Intersects(rect)) {
	LineLayoutSVGInlineText line_layout_item =
	LineLayoutSVGInlineText(this->GetLineLayoutItem());
	const SimpleFontData* font_data =
	line_layout_item.ScaledFont().PrimaryFont();
	DCHECK(font_data);
	if (!font_data)
	return false;

	DCHECK(line_layout_item.ScalingFactor());
	float baseline = font_data->GetFontMetrics().FloatAscent() /
	line_layout_item.ScalingFactor();
	FloatPoint float_location = FloatPoint(location_in_container.Point());
	for (const SVGTextFragment& fragment : text_fragments_) {
	FloatQuad fragment_quad = fragment.BoundingQuad(baseline);
	if (fragment_quad.ContainsPoint(float_location)) {
	line_layout_item.UpdateHitTestResult(
	result, location_in_container.Point() -
	ToLayoutSize(accumulated_offset));
	if (result.AddNodeToListBasedTestResult(line_layout_item.GetNode(),
	location_in_container,
	rect) == kStopHitTesting)
	return true;
	}
	}
	}
	}
	}
	return false;
	}

	} // namespace blink