2737 lines
102 KiB
C++
2737 lines
102 KiB
C++
/*
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* Copyright (C) 1999 Antti Koivisto (koivisto@kde.org)
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* Copyright (C) 2004-2017 Apple Inc. All rights reserved.
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* Copyright (C) 2011 Adobe Systems Incorporated. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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*/
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#include "config.h"
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#include "RenderStyle.h"
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#include "CSSComputedStyleDeclaration.h"
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#include "CSSCustomPropertyValue.h"
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#include "CSSParser.h"
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#include "CSSPropertyNames.h"
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#include "CSSPropertyParser.h"
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#include "ContentData.h"
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#include "CursorList.h"
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#include "FloatRoundedRect.h"
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#include "FontCascade.h"
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#include "FontSelector.h"
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#include "InlineTextBoxStyle.h"
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#include "Pagination.h"
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#include "QuotesData.h"
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#include "RenderBlock.h"
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#include "RenderObject.h"
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#include "RenderTheme.h"
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#include "ScaleTransformOperation.h"
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#include "ShadowData.h"
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#include "StyleBuilderConverter.h"
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#include "StyleImage.h"
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#include "StyleInheritedData.h"
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#include "StyleResolver.h"
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#include "StyleScrollSnapPoints.h"
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#include "StyleSelfAlignmentData.h"
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#include "StyleTreeResolver.h"
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#include "WillChangeData.h"
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#include <wtf/MathExtras.h>
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#include <wtf/PointerComparison.h>
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#include <wtf/StdLibExtras.h>
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#include <algorithm>
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#if ENABLE(TEXT_AUTOSIZING)
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#include <wtf/text/StringHash.h>
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#endif
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namespace WebCore {
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struct SameSizeAsBorderValue {
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Color m_color;
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float m_width;
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int m_restBits;
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};
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COMPILE_ASSERT(sizeof(BorderValue) == sizeof(SameSizeAsBorderValue), BorderValue_should_not_grow);
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struct SameSizeAsRenderStyle {
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void* dataRefs[7];
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void* ownPtrs[1];
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void* dataRefSvgStyle;
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struct InheritedFlags {
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unsigned m_bitfields[2];
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} m_inheritedFlags;
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struct NonInheritedFlags {
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unsigned m_bitfields[2];
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} m_nonInheritedFlags;
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#if ASSERT_ENABLED || ENABLE(SECURITY_ASSERTIONS)
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bool deletionCheck;
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#endif
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};
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static_assert(sizeof(RenderStyle) == sizeof(SameSizeAsRenderStyle), "RenderStyle should stay small");
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DEFINE_ALLOCATOR_WITH_HEAP_IDENTIFIER(RenderStyle);
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RenderStyle& RenderStyle::defaultStyle()
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{
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static NeverDestroyed<RenderStyle> style { CreateDefaultStyle };
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return style;
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}
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RenderStyle RenderStyle::create()
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{
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return clone(defaultStyle());
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}
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std::unique_ptr<RenderStyle> RenderStyle::createPtr()
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{
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return clonePtr(defaultStyle());
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}
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RenderStyle RenderStyle::clone(const RenderStyle& style)
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{
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return RenderStyle(style, Clone);
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}
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std::unique_ptr<RenderStyle> RenderStyle::clonePtr(const RenderStyle& style)
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{
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return makeUnique<RenderStyle>(style, Clone);
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}
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RenderStyle RenderStyle::createAnonymousStyleWithDisplay(const RenderStyle& parentStyle, DisplayType display)
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{
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auto newStyle = create();
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newStyle.inheritFrom(parentStyle);
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newStyle.inheritUnicodeBidiFrom(&parentStyle);
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newStyle.setDisplay(display);
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return newStyle;
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}
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RenderStyle RenderStyle::createStyleInheritingFromPseudoStyle(const RenderStyle& pseudoStyle)
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{
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ASSERT(pseudoStyle.styleType() == PseudoId::Before || pseudoStyle.styleType() == PseudoId::After);
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auto style = create();
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style.inheritFrom(pseudoStyle);
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return style;
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}
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RenderStyle::RenderStyle(RenderStyle&&) = default;
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RenderStyle& RenderStyle::operator=(RenderStyle&&) = default;
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RenderStyle::RenderStyle(CreateDefaultStyleTag)
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: m_boxData(StyleBoxData::create())
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, m_visualData(StyleVisualData::create())
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, m_backgroundData(StyleBackgroundData::create())
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, m_surroundData(StyleSurroundData::create())
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, m_rareNonInheritedData(StyleRareNonInheritedData::create())
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, m_rareInheritedData(StyleRareInheritedData::create())
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, m_inheritedData(StyleInheritedData::create())
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, m_svgStyle(SVGRenderStyle::create())
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{
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m_inheritedFlags.emptyCells = static_cast<unsigned>(initialEmptyCells());
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m_inheritedFlags.captionSide = static_cast<unsigned>(initialCaptionSide());
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m_inheritedFlags.listStyleType = static_cast<unsigned>(initialListStyleType());
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m_inheritedFlags.listStylePosition = static_cast<unsigned>(initialListStylePosition());
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m_inheritedFlags.visibility = static_cast<unsigned>(initialVisibility());
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m_inheritedFlags.textAlign = static_cast<unsigned>(initialTextAlign());
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m_inheritedFlags.textTransform = static_cast<unsigned>(initialTextTransform());
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m_inheritedFlags.textDecorations = initialTextDecoration().toRaw();
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m_inheritedFlags.cursor = static_cast<unsigned>(initialCursor());
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#if ENABLE(CURSOR_VISIBILITY)
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m_inheritedFlags.cursorVisibility = static_cast<unsigned>(initialCursorVisibility());
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#endif
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m_inheritedFlags.direction = static_cast<unsigned>(initialDirection());
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m_inheritedFlags.whiteSpace = static_cast<unsigned>(initialWhiteSpace());
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m_inheritedFlags.borderCollapse = static_cast<unsigned>(initialBorderCollapse());
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m_inheritedFlags.rtlOrdering = static_cast<unsigned>(initialRTLOrdering());
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m_inheritedFlags.boxDirection = static_cast<unsigned>(initialBoxDirection());
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m_inheritedFlags.printColorAdjust = static_cast<unsigned>(initialPrintColorAdjust());
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m_inheritedFlags.pointerEvents = static_cast<unsigned>(initialPointerEvents());
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m_inheritedFlags.insideLink = static_cast<unsigned>(InsideLink::NotInside);
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m_inheritedFlags.insideDefaultButton = false;
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m_inheritedFlags.writingMode = static_cast<unsigned>(initialWritingMode());
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#if ENABLE(TEXT_AUTOSIZING)
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m_inheritedFlags.autosizeStatus = 0;
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#endif
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m_nonInheritedFlags.effectiveDisplay = static_cast<unsigned>(initialDisplay());
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m_nonInheritedFlags.originalDisplay = static_cast<unsigned>(initialDisplay());
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m_nonInheritedFlags.overflowX = static_cast<unsigned>(initialOverflowX());
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m_nonInheritedFlags.overflowY = static_cast<unsigned>(initialOverflowY());
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m_nonInheritedFlags.verticalAlign = static_cast<unsigned>(initialVerticalAlign());
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m_nonInheritedFlags.clear = static_cast<unsigned>(initialClear());
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m_nonInheritedFlags.position = static_cast<unsigned>(initialPosition());
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m_nonInheritedFlags.unicodeBidi = initialUnicodeBidi();
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m_nonInheritedFlags.floating = static_cast<unsigned>(initialFloating());
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m_nonInheritedFlags.tableLayout = static_cast<unsigned>(initialTableLayout());
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m_nonInheritedFlags.hasExplicitlySetBorderRadius = false;
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m_nonInheritedFlags.hasExplicitlySetDirection = false;
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m_nonInheritedFlags.hasExplicitlySetWritingMode = false;
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m_nonInheritedFlags.hasExplicitlySetTextAlign = false;
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m_nonInheritedFlags.hasViewportUnits = false;
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m_nonInheritedFlags.hasExplicitlyInheritedProperties = false;
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m_nonInheritedFlags.isUnique = false;
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m_nonInheritedFlags.emptyState = false;
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m_nonInheritedFlags.firstChildState = false;
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m_nonInheritedFlags.lastChildState = false;
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m_nonInheritedFlags.isLink = false;
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m_nonInheritedFlags.styleType = static_cast<unsigned>(PseudoId::None);
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m_nonInheritedFlags.pseudoBits = static_cast<unsigned>(PseudoId::None);
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static_assert((sizeof(InheritedFlags) <= 8), "InheritedFlags does not grow");
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static_assert((sizeof(NonInheritedFlags) <= 8), "NonInheritedFlags does not grow");
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}
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inline RenderStyle::RenderStyle(const RenderStyle& other, CloneTag)
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: m_boxData(other.m_boxData)
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, m_visualData(other.m_visualData)
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, m_backgroundData(other.m_backgroundData)
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, m_surroundData(other.m_surroundData)
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, m_rareNonInheritedData(other.m_rareNonInheritedData)
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, m_nonInheritedFlags(other.m_nonInheritedFlags)
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, m_rareInheritedData(other.m_rareInheritedData)
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, m_inheritedData(other.m_inheritedData)
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, m_inheritedFlags(other.m_inheritedFlags)
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, m_svgStyle(other.m_svgStyle)
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{
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}
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inline RenderStyle::RenderStyle(RenderStyle& a, RenderStyle&& b)
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: m_boxData(a.m_boxData.replace(WTFMove(b.m_boxData)))
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, m_visualData(a.m_visualData.replace(WTFMove(b.m_visualData)))
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, m_backgroundData(a.m_backgroundData.replace(WTFMove(b.m_backgroundData)))
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, m_surroundData(a.m_surroundData.replace(WTFMove(b.m_surroundData)))
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, m_rareNonInheritedData(a.m_rareNonInheritedData.replace(WTFMove(b.m_rareNonInheritedData)))
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, m_nonInheritedFlags(std::exchange(a.m_nonInheritedFlags, b.m_nonInheritedFlags))
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, m_rareInheritedData(a.m_rareInheritedData.replace(WTFMove(b.m_rareInheritedData)))
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, m_inheritedData(a.m_inheritedData.replace(WTFMove(b.m_inheritedData)))
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, m_inheritedFlags(std::exchange(a.m_inheritedFlags, b.m_inheritedFlags))
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, m_cachedPseudoStyles(std::exchange(a.m_cachedPseudoStyles, WTFMove(b.m_cachedPseudoStyles)))
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, m_svgStyle(a.m_svgStyle.replace(WTFMove(b.m_svgStyle)))
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{
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}
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RenderStyle::~RenderStyle()
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{
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#if ASSERT_ENABLED || ENABLE(SECURITY_ASSERTIONS)
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ASSERT_WITH_SECURITY_IMPLICATION(!m_deletionHasBegun);
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m_deletionHasBegun = true;
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#endif
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}
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RenderStyle RenderStyle::replace(RenderStyle&& newStyle)
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{
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return RenderStyle { *this, WTFMove(newStyle) };
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}
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static StyleSelfAlignmentData resolvedSelfAlignment(const StyleSelfAlignmentData& value, ItemPosition normalValueBehavior)
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{
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if (value.position() == ItemPosition::Legacy || value.position() == ItemPosition::Normal || value.position() == ItemPosition::Auto)
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return { normalValueBehavior, OverflowAlignment::Default };
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return value;
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}
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StyleSelfAlignmentData RenderStyle::resolvedAlignItems(ItemPosition normalValueBehaviour) const
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{
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return resolvedSelfAlignment(alignItems(), normalValueBehaviour);
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}
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StyleSelfAlignmentData RenderStyle::resolvedAlignSelf(const RenderStyle* parentStyle, ItemPosition normalValueBehaviour) const
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{
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// The auto keyword computes to the parent's align-items computed value.
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// We will return the behaviour of 'normal' value if needed, which is specific of each layout model.
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if (!parentStyle || alignSelf().position() != ItemPosition::Auto)
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return resolvedSelfAlignment(alignSelf(), normalValueBehaviour);
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return parentStyle->resolvedAlignItems(normalValueBehaviour);
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}
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StyleSelfAlignmentData RenderStyle::resolvedJustifyItems(ItemPosition normalValueBehaviour) const
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{
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return resolvedSelfAlignment(justifyItems(), normalValueBehaviour);
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}
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StyleSelfAlignmentData RenderStyle::resolvedJustifySelf(const RenderStyle* parentStyle, ItemPosition normalValueBehaviour) const
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{
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// The auto keyword computes to the parent's justify-items computed value.
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// We will return the behaviour of 'normal' value if needed, which is specific of each layout model.
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if (!parentStyle || justifySelf().position() != ItemPosition::Auto)
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return resolvedSelfAlignment(justifySelf(), normalValueBehaviour);
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return parentStyle->resolvedJustifyItems(normalValueBehaviour);
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}
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static inline StyleContentAlignmentData resolvedContentAlignment(const StyleContentAlignmentData& value, const StyleContentAlignmentData& normalValueBehavior)
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{
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return (value.position() == ContentPosition::Normal && value.distribution() == ContentDistribution::Default) ? normalValueBehavior : value;
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}
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StyleContentAlignmentData RenderStyle::resolvedAlignContent(const StyleContentAlignmentData& normalValueBehavior) const
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{
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// We will return the behaviour of 'normal' value if needed, which is specific of each layout model.
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return resolvedContentAlignment(alignContent(), normalValueBehavior);
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}
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StyleContentAlignmentData RenderStyle::resolvedJustifyContent(const StyleContentAlignmentData& normalValueBehavior) const
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{
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// We will return the behaviour of 'normal' value if needed, which is specific of each layout model.
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return resolvedContentAlignment(justifyContent(), normalValueBehavior);
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}
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static inline ContentPosition resolvedContentAlignmentPosition(const StyleContentAlignmentData& value, const StyleContentAlignmentData& normalValueBehavior)
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{
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return (value.position() == ContentPosition::Normal && value.distribution() == ContentDistribution::Default) ? normalValueBehavior.position() : value.position();
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}
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static inline ContentDistribution resolvedContentAlignmentDistribution(const StyleContentAlignmentData& value, const StyleContentAlignmentData& normalValueBehavior)
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{
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return (value.position() == ContentPosition::Normal && value.distribution() == ContentDistribution::Default) ? normalValueBehavior.distribution() : value.distribution();
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}
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ContentPosition RenderStyle::resolvedJustifyContentPosition(const StyleContentAlignmentData& normalValueBehavior) const
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{
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return resolvedContentAlignmentPosition(justifyContent(), normalValueBehavior);
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}
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ContentDistribution RenderStyle::resolvedJustifyContentDistribution(const StyleContentAlignmentData& normalValueBehavior) const
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{
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return resolvedContentAlignmentDistribution(justifyContent(), normalValueBehavior);
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}
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ContentPosition RenderStyle::resolvedAlignContentPosition(const StyleContentAlignmentData& normalValueBehavior) const
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{
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return resolvedContentAlignmentPosition(alignContent(), normalValueBehavior);
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}
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ContentDistribution RenderStyle::resolvedAlignContentDistribution(const StyleContentAlignmentData& normalValueBehavior) const
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{
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return resolvedContentAlignmentDistribution(alignContent(), normalValueBehavior);
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}
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void RenderStyle::inheritFrom(const RenderStyle& inheritParent)
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{
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m_rareInheritedData = inheritParent.m_rareInheritedData;
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m_inheritedData = inheritParent.m_inheritedData;
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m_inheritedFlags = inheritParent.m_inheritedFlags;
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if (m_svgStyle != inheritParent.m_svgStyle)
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m_svgStyle.access().inheritFrom(inheritParent.m_svgStyle.get());
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}
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void RenderStyle::copyNonInheritedFrom(const RenderStyle& other)
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{
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m_boxData = other.m_boxData;
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m_visualData = other.m_visualData;
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m_backgroundData = other.m_backgroundData;
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m_surroundData = other.m_surroundData;
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m_rareNonInheritedData = other.m_rareNonInheritedData;
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m_nonInheritedFlags.copyNonInheritedFrom(other.m_nonInheritedFlags);
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if (m_svgStyle != other.m_svgStyle)
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m_svgStyle.access().copyNonInheritedFrom(other.m_svgStyle.get());
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ASSERT(zoom() == initialZoom());
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}
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void RenderStyle::copyContentFrom(const RenderStyle& other)
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{
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if (!other.m_rareNonInheritedData->content)
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return;
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m_rareNonInheritedData.access().content = other.m_rareNonInheritedData->content->clone();
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}
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bool RenderStyle::operator==(const RenderStyle& other) const
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{
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// compare everything except the pseudoStyle pointer
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return m_inheritedFlags == other.m_inheritedFlags
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&& m_nonInheritedFlags == other.m_nonInheritedFlags
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&& m_boxData == other.m_boxData
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&& m_visualData == other.m_visualData
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&& m_backgroundData == other.m_backgroundData
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&& m_surroundData == other.m_surroundData
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&& m_rareNonInheritedData == other.m_rareNonInheritedData
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&& m_rareInheritedData == other.m_rareInheritedData
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&& m_inheritedData == other.m_inheritedData
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&& m_svgStyle == other.m_svgStyle;
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}
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bool RenderStyle::hasUniquePseudoStyle() const
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{
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if (!m_cachedPseudoStyles || styleType() != PseudoId::None)
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return false;
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for (auto& pseudoStyle : *m_cachedPseudoStyles) {
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if (pseudoStyle->unique())
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return true;
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}
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return false;
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}
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RenderStyle* RenderStyle::getCachedPseudoStyle(PseudoId pid) const
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{
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if (!m_cachedPseudoStyles || !m_cachedPseudoStyles->size())
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return nullptr;
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if (styleType() != PseudoId::None)
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return nullptr;
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for (auto& pseudoStyle : *m_cachedPseudoStyles) {
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if (pseudoStyle->styleType() == pid)
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return pseudoStyle.get();
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}
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return nullptr;
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}
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RenderStyle* RenderStyle::addCachedPseudoStyle(std::unique_ptr<RenderStyle> pseudo)
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{
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if (!pseudo)
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return nullptr;
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ASSERT(pseudo->styleType() > PseudoId::None);
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RenderStyle* result = pseudo.get();
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if (!m_cachedPseudoStyles)
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m_cachedPseudoStyles = makeUnique<PseudoStyleCache>();
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m_cachedPseudoStyles->append(WTFMove(pseudo));
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return result;
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}
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void RenderStyle::removeCachedPseudoStyle(PseudoId pid)
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{
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if (!m_cachedPseudoStyles)
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return;
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for (size_t i = 0; i < m_cachedPseudoStyles->size(); ++i) {
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RenderStyle* pseudoStyle = m_cachedPseudoStyles->at(i).get();
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if (pseudoStyle->styleType() == pid) {
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m_cachedPseudoStyles->remove(i);
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return;
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}
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}
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}
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bool RenderStyle::inheritedEqual(const RenderStyle& other) const
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{
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return m_inheritedFlags == other.m_inheritedFlags
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&& m_inheritedData == other.m_inheritedData
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&& (m_svgStyle.ptr() == other.m_svgStyle.ptr() || m_svgStyle->inheritedEqual(other.m_svgStyle))
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&& m_rareInheritedData == other.m_rareInheritedData;
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}
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bool RenderStyle::descendantAffectingNonInheritedPropertiesEqual(const RenderStyle& other) const
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{
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if (m_rareNonInheritedData.ptr() == other.m_rareNonInheritedData.ptr())
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return true;
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return m_rareNonInheritedData->alignItems == other.m_rareNonInheritedData->alignItems
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&& m_rareNonInheritedData->justifyItems == other.m_rareNonInheritedData->justifyItems;
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}
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#if ENABLE(TEXT_AUTOSIZING)
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static inline unsigned computeFontHash(const FontCascade& font)
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{
|
|
// FIXME: Would be better to hash the family name rather than hashing a hash of the family name. Also, should this use FontCascadeDescription::familyNameHash?
|
|
return computeHash(ASCIICaseInsensitiveHash::hash(font.fontDescription().firstFamily()), font.fontDescription().specifiedSize());
|
|
}
|
|
|
|
unsigned RenderStyle::hashForTextAutosizing() const
|
|
{
|
|
// FIXME: Not a very smart hash. Could be improved upon. See <https://bugs.webkit.org/show_bug.cgi?id=121131>.
|
|
unsigned hash = m_rareNonInheritedData->appearance;
|
|
hash ^= m_rareNonInheritedData->marginBeforeCollapse;
|
|
hash ^= m_rareNonInheritedData->marginAfterCollapse;
|
|
hash ^= m_rareNonInheritedData->lineClamp.value();
|
|
hash ^= m_rareInheritedData->overflowWrap;
|
|
hash ^= m_rareInheritedData->nbspMode;
|
|
hash ^= m_rareInheritedData->lineBreak;
|
|
hash ^= WTF::FloatHash<float>::hash(m_inheritedData->specifiedLineHeight.value());
|
|
hash ^= computeFontHash(m_inheritedData->fontCascade);
|
|
hash ^= WTF::FloatHash<float>::hash(m_inheritedData->horizontalBorderSpacing);
|
|
hash ^= WTF::FloatHash<float>::hash(m_inheritedData->verticalBorderSpacing);
|
|
hash ^= m_inheritedFlags.boxDirection;
|
|
hash ^= m_inheritedFlags.rtlOrdering;
|
|
hash ^= m_nonInheritedFlags.position;
|
|
hash ^= m_nonInheritedFlags.floating;
|
|
hash ^= m_rareNonInheritedData->textOverflow;
|
|
hash ^= m_rareInheritedData->textSecurity;
|
|
return hash;
|
|
}
|
|
|
|
bool RenderStyle::equalForTextAutosizing(const RenderStyle& other) const
|
|
{
|
|
return m_rareNonInheritedData->appearance == other.m_rareNonInheritedData->appearance
|
|
&& m_rareNonInheritedData->marginBeforeCollapse == other.m_rareNonInheritedData->marginBeforeCollapse
|
|
&& m_rareNonInheritedData->marginAfterCollapse == other.m_rareNonInheritedData->marginAfterCollapse
|
|
&& m_rareNonInheritedData->lineClamp == other.m_rareNonInheritedData->lineClamp
|
|
&& m_rareInheritedData->textSizeAdjust == other.m_rareInheritedData->textSizeAdjust
|
|
&& m_rareInheritedData->overflowWrap == other.m_rareInheritedData->overflowWrap
|
|
&& m_rareInheritedData->nbspMode == other.m_rareInheritedData->nbspMode
|
|
&& m_rareInheritedData->lineBreak == other.m_rareInheritedData->lineBreak
|
|
&& m_rareInheritedData->textSecurity == other.m_rareInheritedData->textSecurity
|
|
&& m_inheritedData->specifiedLineHeight == other.m_inheritedData->specifiedLineHeight
|
|
&& m_inheritedData->fontCascade.equalForTextAutoSizing(other.m_inheritedData->fontCascade)
|
|
&& m_inheritedData->horizontalBorderSpacing == other.m_inheritedData->horizontalBorderSpacing
|
|
&& m_inheritedData->verticalBorderSpacing == other.m_inheritedData->verticalBorderSpacing
|
|
&& m_inheritedFlags.boxDirection == other.m_inheritedFlags.boxDirection
|
|
&& m_inheritedFlags.rtlOrdering == other.m_inheritedFlags.rtlOrdering
|
|
&& m_nonInheritedFlags.position == other.m_nonInheritedFlags.position
|
|
&& m_nonInheritedFlags.floating == other.m_nonInheritedFlags.floating
|
|
&& m_rareNonInheritedData->textOverflow == other.m_rareNonInheritedData->textOverflow;
|
|
}
|
|
|
|
bool RenderStyle::isIdempotentTextAutosizingCandidate(std::optional<AutosizeStatus> overrideStatus) const
|
|
{
|
|
// Refer to <rdar://problem/51826266> for more information regarding how this function was generated.
|
|
auto fields = OptionSet<AutosizeStatus::Fields>::fromRaw(m_inheritedFlags.autosizeStatus);
|
|
if (overrideStatus)
|
|
fields = overrideStatus->fields();
|
|
|
|
if (fields.contains(AutosizeStatus::Fields::AvoidSubtree))
|
|
return false;
|
|
|
|
const float smallMinimumDifferenceThresholdBetweenLineHeightAndSpecifiedFontSizeForBoostingText = 5;
|
|
const float largeMinimumDifferenceThresholdBetweenLineHeightAndSpecifiedFontSizeForBoostingText = 25;
|
|
|
|
if (fields.contains(AutosizeStatus::Fields::FixedHeight)) {
|
|
if (fields.contains(AutosizeStatus::Fields::FixedWidth)) {
|
|
if (whiteSpace() == WhiteSpace::NoWrap) {
|
|
if (width().isFixed())
|
|
return false;
|
|
|
|
if (height().isFixed() && specifiedLineHeight().isFixed()) {
|
|
float specifiedSize = specifiedFontSize();
|
|
if (height().value() == specifiedSize && specifiedLineHeight().value() == specifiedSize)
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
if (fields.contains(AutosizeStatus::Fields::Floating)) {
|
|
if (specifiedLineHeight().isFixed() && height().isFixed()) {
|
|
float specifiedSize = specifiedFontSize();
|
|
if (specifiedLineHeight().value() - specifiedSize > smallMinimumDifferenceThresholdBetweenLineHeightAndSpecifiedFontSizeForBoostingText
|
|
&& height().value() - specifiedSize > smallMinimumDifferenceThresholdBetweenLineHeightAndSpecifiedFontSizeForBoostingText) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
if (fields.contains(AutosizeStatus::Fields::OverflowXHidden))
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
if (fields.contains(AutosizeStatus::Fields::OverflowXHidden)) {
|
|
if (fields.contains(AutosizeStatus::Fields::Floating))
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
if (width().isFixed()) {
|
|
if (breakWords())
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
if (textSizeAdjust().isPercentage() && textSizeAdjust().percentage() == 100) {
|
|
if (fields.contains(AutosizeStatus::Fields::Floating))
|
|
return true;
|
|
|
|
if (fields.contains(AutosizeStatus::Fields::FixedWidth))
|
|
return true;
|
|
|
|
if (specifiedLineHeight().isFixed() && specifiedLineHeight().value() - specifiedFontSize() > largeMinimumDifferenceThresholdBetweenLineHeightAndSpecifiedFontSizeForBoostingText)
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
if (hasBackgroundImage() && backgroundRepeatX() == FillRepeat::NoRepeat && backgroundRepeatY() == FillRepeat::NoRepeat)
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
AutosizeStatus RenderStyle::autosizeStatus() const
|
|
{
|
|
return OptionSet<AutosizeStatus::Fields>::fromRaw(m_inheritedFlags.autosizeStatus);
|
|
}
|
|
|
|
void RenderStyle::setAutosizeStatus(AutosizeStatus autosizeStatus)
|
|
{
|
|
m_inheritedFlags.autosizeStatus = autosizeStatus.fields().toRaw();
|
|
}
|
|
|
|
#endif // ENABLE(TEXT_AUTOSIZING)
|
|
|
|
static bool positionChangeIsMovementOnly(const LengthBox& a, const LengthBox& b, const Length& width)
|
|
{
|
|
// If any unit types are different, then we can't guarantee
|
|
// that this was just a movement.
|
|
if (a.left().type() != b.left().type()
|
|
|| a.right().type() != b.right().type()
|
|
|| a.top().type() != b.top().type()
|
|
|| a.bottom().type() != b.bottom().type())
|
|
return false;
|
|
|
|
// Only one unit can be non-auto in the horizontal direction and
|
|
// in the vertical direction. Otherwise the adjustment of values
|
|
// is changing the size of the box.
|
|
if (!a.left().isIntrinsicOrAuto() && !a.right().isIntrinsicOrAuto())
|
|
return false;
|
|
if (!a.top().isIntrinsicOrAuto() && !a.bottom().isIntrinsicOrAuto())
|
|
return false;
|
|
// If our width is auto and left or right is specified then this
|
|
// is not just a movement - we need to resize to our container.
|
|
if ((!a.left().isIntrinsicOrAuto() || !a.right().isIntrinsicOrAuto()) && width.isIntrinsicOrAuto())
|
|
return false;
|
|
|
|
// One of the units is fixed or percent in both directions and stayed
|
|
// that way in the new style. Therefore all we are doing is moving.
|
|
return true;
|
|
}
|
|
|
|
inline bool RenderStyle::changeAffectsVisualOverflow(const RenderStyle& other) const
|
|
{
|
|
if (m_rareNonInheritedData.ptr() != other.m_rareNonInheritedData.ptr()
|
|
&& !arePointingToEqualData(m_rareNonInheritedData->boxShadow, other.m_rareNonInheritedData->boxShadow))
|
|
return true;
|
|
|
|
if (m_rareInheritedData.ptr() != other.m_rareInheritedData.ptr()
|
|
&& !arePointingToEqualData(m_rareInheritedData->textShadow, other.m_rareInheritedData->textShadow))
|
|
return true;
|
|
|
|
if (m_inheritedFlags.textDecorations != other.m_inheritedFlags.textDecorations
|
|
|| m_rareNonInheritedData->textDecorationStyle != other.m_rareNonInheritedData->textDecorationStyle
|
|
|| m_rareInheritedData->textDecorationThickness != other.m_rareInheritedData->textDecorationThickness
|
|
|| m_rareInheritedData->textUnderlineOffset != other.m_rareInheritedData->textUnderlineOffset
|
|
|| m_rareInheritedData->textUnderlinePosition != other.m_rareInheritedData->textUnderlinePosition) {
|
|
// Underlines are always drawn outside of their textbox bounds when text-underline-position: under;
|
|
// is specified. We can take an early out here.
|
|
if (textUnderlinePosition() == TextUnderlinePosition::Under || other.textUnderlinePosition() == TextUnderlinePosition::Under)
|
|
return true;
|
|
return visualOverflowForDecorations(*this, { }) != visualOverflowForDecorations(other, { });
|
|
}
|
|
|
|
if (hasOutlineInVisualOverflow() != other.hasOutlineInVisualOverflow())
|
|
return true;
|
|
return false;
|
|
}
|
|
|
|
static bool rareNonInheritedDataChangeRequiresLayout(const StyleRareNonInheritedData& first, const StyleRareNonInheritedData& second, OptionSet<StyleDifferenceContextSensitiveProperty>& changedContextSensitiveProperties)
|
|
{
|
|
ASSERT(&first != &second);
|
|
|
|
if (first.appearance != second.appearance
|
|
|| first.marginBeforeCollapse != second.marginBeforeCollapse
|
|
|| first.marginAfterCollapse != second.marginAfterCollapse
|
|
|| first.lineClamp != second.lineClamp
|
|
|| first.initialLetter != second.initialLetter
|
|
|| first.textOverflow != second.textOverflow)
|
|
return true;
|
|
|
|
if (first.shapeMargin != second.shapeMargin)
|
|
return true;
|
|
|
|
if (first.deprecatedFlexibleBox != second.deprecatedFlexibleBox)
|
|
return true;
|
|
|
|
if (first.flexibleBox != second.flexibleBox)
|
|
return true;
|
|
|
|
if (first.order != second.order
|
|
|| first.alignContent != second.alignContent
|
|
|| first.alignItems != second.alignItems
|
|
|| first.alignSelf != second.alignSelf
|
|
|| first.justifyContent != second.justifyContent
|
|
|| first.justifyItems != second.justifyItems
|
|
|| first.justifySelf != second.justifySelf)
|
|
return true;
|
|
|
|
if (!arePointingToEqualData(first.boxReflect, second.boxReflect))
|
|
return true;
|
|
|
|
if (first.multiCol != second.multiCol)
|
|
return true;
|
|
|
|
if (first.transform.ptr() != second.transform.ptr()) {
|
|
if (first.transform->hasTransform() != second.transform->hasTransform())
|
|
return true;
|
|
if (*first.transform != *second.transform) {
|
|
changedContextSensitiveProperties.add(StyleDifferenceContextSensitiveProperty::Transform);
|
|
// Don't return; keep looking for another change
|
|
}
|
|
}
|
|
|
|
if (!arePointingToEqualData(first.scale, second.scale)
|
|
|| !arePointingToEqualData(first.rotate, second.rotate)
|
|
|| !arePointingToEqualData(first.translate, second.translate))
|
|
changedContextSensitiveProperties.add(StyleDifferenceContextSensitiveProperty::Transform);
|
|
|
|
if (first.grid != second.grid
|
|
|| first.gridItem != second.gridItem)
|
|
return true;
|
|
|
|
if (!arePointingToEqualData(first.willChange, second.willChange)) {
|
|
changedContextSensitiveProperties.add(StyleDifferenceContextSensitiveProperty::WillChange);
|
|
// Don't return; keep looking for another change
|
|
}
|
|
|
|
if (first.textCombine != second.textCombine)
|
|
return true;
|
|
|
|
if (first.breakBefore != second.breakBefore
|
|
|| first.breakAfter != second.breakAfter
|
|
|| first.breakInside != second.breakInside)
|
|
return true;
|
|
|
|
if (first.hasOpacity() != second.hasOpacity()) {
|
|
// FIXME: We would like to use SimplifiedLayout here, but we can't quite do that yet.
|
|
// We need to make sure SimplifiedLayout can operate correctly on RenderInlines (we will need
|
|
// to add a selfNeedsSimplifiedLayout bit in order to not get confused and taint every line).
|
|
// In addition we need to solve the floating object issue when layers come and go. Right now
|
|
// a full layout is necessary to keep floating object lists sane.
|
|
return true;
|
|
}
|
|
|
|
#if ENABLE(CSS_COMPOSITING)
|
|
if (first.isolation != second.isolation) {
|
|
// Ideally this would trigger a cheaper layout that just updates layer z-order trees (webit.org/b/190088).
|
|
return true;
|
|
}
|
|
#endif
|
|
|
|
if (first.hasFilters() != second.hasFilters())
|
|
return true;
|
|
|
|
#if ENABLE(FILTERS_LEVEL_2)
|
|
if (first.hasBackdropFilters() != second.hasBackdropFilters())
|
|
return true;
|
|
#endif
|
|
|
|
if (first.aspectRatioType != second.aspectRatioType
|
|
|| first.aspectRatioWidth != second.aspectRatioWidth
|
|
|| first.aspectRatioHeight != second.aspectRatioHeight) {
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static bool rareInheritedDataChangeRequiresLayout(const StyleRareInheritedData& first, const StyleRareInheritedData& second)
|
|
{
|
|
ASSERT(&first != &second);
|
|
|
|
if (first.indent != second.indent
|
|
#if ENABLE(CSS3_TEXT)
|
|
|| first.textAlignLast != second.textAlignLast
|
|
|| first.textJustify != second.textJustify
|
|
#endif
|
|
|| first.textIndentLine != second.textIndentLine
|
|
|| first.effectiveZoom != second.effectiveZoom
|
|
|| first.textZoom != second.textZoom
|
|
#if ENABLE(TEXT_AUTOSIZING)
|
|
|| first.textSizeAdjust != second.textSizeAdjust
|
|
#endif
|
|
|| first.wordBreak != second.wordBreak
|
|
|| first.overflowWrap != second.overflowWrap
|
|
|| first.nbspMode != second.nbspMode
|
|
|| first.lineBreak != second.lineBreak
|
|
|| first.textSecurity != second.textSecurity
|
|
|| first.hyphens != second.hyphens
|
|
|| first.hyphenationLimitBefore != second.hyphenationLimitBefore
|
|
|| first.hyphenationLimitAfter != second.hyphenationLimitAfter
|
|
|| first.hyphenationString != second.hyphenationString
|
|
|| first.rubyPosition != second.rubyPosition
|
|
|| first.textEmphasisMark != second.textEmphasisMark
|
|
|| first.textEmphasisPosition != second.textEmphasisPosition
|
|
|| first.textEmphasisCustomMark != second.textEmphasisCustomMark
|
|
|| first.textOrientation != second.textOrientation
|
|
|| first.tabSize != second.tabSize
|
|
|| first.lineBoxContain != second.lineBoxContain
|
|
|| first.lineGrid != second.lineGrid
|
|
|| first.imageOrientation != second.imageOrientation
|
|
#if ENABLE(CSS_IMAGE_RESOLUTION)
|
|
|| first.imageResolutionSource != second.imageResolutionSource
|
|
|| first.imageResolutionSnap != second.imageResolutionSnap
|
|
|| first.imageResolution != second.imageResolution
|
|
#endif
|
|
|| first.lineSnap != second.lineSnap
|
|
|| first.lineAlign != second.lineAlign
|
|
|| first.hangingPunctuation != second.hangingPunctuation
|
|
#if ENABLE(OVERFLOW_SCROLLING_TOUCH)
|
|
|| first.useTouchOverflowScrolling != second.useTouchOverflowScrolling
|
|
#endif
|
|
|| first.listStyleImage != second.listStyleImage) // FIXME: needs arePointingToEqualData()?
|
|
return true;
|
|
|
|
if (first.textStrokeWidth != second.textStrokeWidth)
|
|
return true;
|
|
|
|
// These properties affect the cached stroke bounding box rects.
|
|
if (first.capStyle != second.capStyle
|
|
|| first.joinStyle != second.joinStyle
|
|
|| first.strokeWidth != second.strokeWidth
|
|
|| first.miterLimit != second.miterLimit)
|
|
return true;
|
|
|
|
if (!arePointingToEqualData(first.quotes, second.quotes))
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
bool RenderStyle::changeRequiresLayout(const RenderStyle& other, OptionSet<StyleDifferenceContextSensitiveProperty>& changedContextSensitiveProperties) const
|
|
{
|
|
if (m_boxData.ptr() != other.m_boxData.ptr()) {
|
|
if (m_boxData->width() != other.m_boxData->width()
|
|
|| m_boxData->minWidth() != other.m_boxData->minWidth()
|
|
|| m_boxData->maxWidth() != other.m_boxData->maxWidth()
|
|
|| m_boxData->height() != other.m_boxData->height()
|
|
|| m_boxData->minHeight() != other.m_boxData->minHeight()
|
|
|| m_boxData->maxHeight() != other.m_boxData->maxHeight())
|
|
return true;
|
|
|
|
if (m_boxData->verticalAlign() != other.m_boxData->verticalAlign())
|
|
return true;
|
|
|
|
if (m_boxData->boxSizing() != other.m_boxData->boxSizing())
|
|
return true;
|
|
|
|
if (m_boxData->hasAutoUsedZIndex() != other.m_boxData->hasAutoUsedZIndex())
|
|
return true;
|
|
}
|
|
|
|
if (m_surroundData->margin != other.m_surroundData->margin)
|
|
return true;
|
|
|
|
if (m_surroundData->padding != other.m_surroundData->padding)
|
|
return true;
|
|
|
|
// FIXME: We should add an optimized form of layout that just recomputes visual overflow.
|
|
if (changeAffectsVisualOverflow(other))
|
|
return true;
|
|
|
|
if (m_rareNonInheritedData.ptr() != other.m_rareNonInheritedData.ptr()
|
|
&& rareNonInheritedDataChangeRequiresLayout(*m_rareNonInheritedData, *other.m_rareNonInheritedData, changedContextSensitiveProperties))
|
|
return true;
|
|
|
|
if (m_rareInheritedData.ptr() != other.m_rareInheritedData.ptr()
|
|
&& rareInheritedDataChangeRequiresLayout(*m_rareInheritedData, *other.m_rareInheritedData))
|
|
return true;
|
|
|
|
if (m_inheritedData.ptr() != other.m_inheritedData.ptr()) {
|
|
if (m_inheritedData->lineHeight != other.m_inheritedData->lineHeight
|
|
#if ENABLE(TEXT_AUTOSIZING)
|
|
|| m_inheritedData->specifiedLineHeight != other.m_inheritedData->specifiedLineHeight
|
|
#endif
|
|
|| m_inheritedData->fontCascade != other.m_inheritedData->fontCascade
|
|
|| m_inheritedData->horizontalBorderSpacing != other.m_inheritedData->horizontalBorderSpacing
|
|
|| m_inheritedData->verticalBorderSpacing != other.m_inheritedData->verticalBorderSpacing)
|
|
return true;
|
|
}
|
|
|
|
if (m_inheritedFlags.boxDirection != other.m_inheritedFlags.boxDirection
|
|
|| m_inheritedFlags.rtlOrdering != other.m_inheritedFlags.rtlOrdering
|
|
|| m_nonInheritedFlags.position != other.m_nonInheritedFlags.position
|
|
|| m_nonInheritedFlags.floating != other.m_nonInheritedFlags.floating
|
|
|| m_nonInheritedFlags.originalDisplay != other.m_nonInheritedFlags.originalDisplay
|
|
|| m_nonInheritedFlags.verticalAlign != other.m_nonInheritedFlags.verticalAlign)
|
|
return true;
|
|
|
|
if (static_cast<DisplayType>(m_nonInheritedFlags.effectiveDisplay) >= DisplayType::Table) {
|
|
if (m_inheritedFlags.borderCollapse != other.m_inheritedFlags.borderCollapse
|
|
|| m_inheritedFlags.emptyCells != other.m_inheritedFlags.emptyCells
|
|
|| m_inheritedFlags.captionSide != other.m_inheritedFlags.captionSide
|
|
|| m_nonInheritedFlags.tableLayout != other.m_nonInheritedFlags.tableLayout)
|
|
return true;
|
|
|
|
// In the collapsing border model, 'hidden' suppresses other borders, while 'none'
|
|
// does not, so these style differences can be width differences.
|
|
if (m_inheritedFlags.borderCollapse
|
|
&& ((borderTopStyle() == BorderStyle::Hidden && other.borderTopStyle() == BorderStyle::None)
|
|
|| (borderTopStyle() == BorderStyle::None && other.borderTopStyle() == BorderStyle::Hidden)
|
|
|| (borderBottomStyle() == BorderStyle::Hidden && other.borderBottomStyle() == BorderStyle::None)
|
|
|| (borderBottomStyle() == BorderStyle::None && other.borderBottomStyle() == BorderStyle::Hidden)
|
|
|| (borderLeftStyle() == BorderStyle::Hidden && other.borderLeftStyle() == BorderStyle::None)
|
|
|| (borderLeftStyle() == BorderStyle::None && other.borderLeftStyle() == BorderStyle::Hidden)
|
|
|| (borderRightStyle() == BorderStyle::Hidden && other.borderRightStyle() == BorderStyle::None)
|
|
|| (borderRightStyle() == BorderStyle::None && other.borderRightStyle() == BorderStyle::Hidden)))
|
|
return true;
|
|
}
|
|
|
|
if (static_cast<DisplayType>(m_nonInheritedFlags.effectiveDisplay) == DisplayType::ListItem) {
|
|
if (m_inheritedFlags.listStyleType != other.m_inheritedFlags.listStyleType
|
|
|| m_inheritedFlags.listStylePosition != other.m_inheritedFlags.listStylePosition)
|
|
return true;
|
|
}
|
|
|
|
if (m_inheritedFlags.textAlign != other.m_inheritedFlags.textAlign
|
|
|| m_inheritedFlags.textTransform != other.m_inheritedFlags.textTransform
|
|
|| m_inheritedFlags.direction != other.m_inheritedFlags.direction
|
|
|| m_inheritedFlags.whiteSpace != other.m_inheritedFlags.whiteSpace
|
|
|| m_nonInheritedFlags.clear != other.m_nonInheritedFlags.clear
|
|
|| m_nonInheritedFlags.unicodeBidi != other.m_nonInheritedFlags.unicodeBidi)
|
|
return true;
|
|
|
|
// Check block flow direction.
|
|
if (m_inheritedFlags.writingMode != other.m_inheritedFlags.writingMode)
|
|
return true;
|
|
|
|
// Overflow returns a layout hint.
|
|
if (m_nonInheritedFlags.overflowX != other.m_nonInheritedFlags.overflowX
|
|
|| m_nonInheritedFlags.overflowY != other.m_nonInheritedFlags.overflowY)
|
|
return true;
|
|
|
|
// If our border widths change, then we need to layout. Other changes to borders
|
|
// only necessitate a repaint.
|
|
if (borderLeftWidth() != other.borderLeftWidth()
|
|
|| borderTopWidth() != other.borderTopWidth()
|
|
|| borderBottomWidth() != other.borderBottomWidth()
|
|
|| borderRightWidth() != other.borderRightWidth())
|
|
return true;
|
|
|
|
// If the counter directives change, trigger a relayout to re-calculate counter values and rebuild the counter node tree.
|
|
if (!arePointingToEqualData(m_rareNonInheritedData->counterDirectives, other.m_rareNonInheritedData->counterDirectives))
|
|
return true;
|
|
|
|
if ((visibility() == Visibility::Collapse) != (other.visibility() == Visibility::Collapse))
|
|
return true;
|
|
|
|
if (position() != PositionType::Static) {
|
|
if (m_surroundData->offset != other.m_surroundData->offset) {
|
|
// FIXME: We would like to use SimplifiedLayout for relative positioning, but we can't quite do that yet.
|
|
// We need to make sure SimplifiedLayout can operate correctly on RenderInlines (we will need
|
|
// to add a selfNeedsSimplifiedLayout bit in order to not get confused and taint every line).
|
|
if (position() != PositionType::Absolute)
|
|
return true;
|
|
|
|
// Optimize for the case where a positioned layer is moving but not changing size.
|
|
if (!positionChangeIsMovementOnly(m_surroundData->offset, other.m_surroundData->offset, m_boxData->width()))
|
|
return true;
|
|
}
|
|
}
|
|
|
|
bool hasFirstLineStyle = hasPseudoStyle(PseudoId::FirstLine);
|
|
if (hasFirstLineStyle != other.hasPseudoStyle(PseudoId::FirstLine))
|
|
return true;
|
|
if (hasFirstLineStyle) {
|
|
auto* firstLineStyle = getCachedPseudoStyle(PseudoId::FirstLine);
|
|
if (!firstLineStyle)
|
|
return true;
|
|
auto* otherFirstLineStyle = other.getCachedPseudoStyle(PseudoId::FirstLine);
|
|
if (!otherFirstLineStyle)
|
|
return true;
|
|
// FIXME: Not all first line style changes actually need layout.
|
|
if (*firstLineStyle != *otherFirstLineStyle)
|
|
return true;
|
|
}
|
|
|
|
if (scrollPadding() != other.scrollPadding() || scrollSnapType() != other.scrollSnapType())
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
bool RenderStyle::changeRequiresPositionedLayoutOnly(const RenderStyle& other, OptionSet<StyleDifferenceContextSensitiveProperty>&) const
|
|
{
|
|
if (position() == PositionType::Static)
|
|
return false;
|
|
|
|
if (m_surroundData->offset != other.m_surroundData->offset) {
|
|
// Optimize for the case where a positioned layer is moving but not changing size.
|
|
if (position() == PositionType::Absolute && positionChangeIsMovementOnly(m_surroundData->offset, other.m_surroundData->offset, m_boxData->width()))
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static bool rareNonInheritedDataChangeRequiresLayerRepaint(const StyleRareNonInheritedData& first, const StyleRareNonInheritedData& second, OptionSet<StyleDifferenceContextSensitiveProperty>& changedContextSensitiveProperties)
|
|
{
|
|
#if ENABLE(CSS_COMPOSITING)
|
|
if (first.effectiveBlendMode != second.effectiveBlendMode)
|
|
return true;
|
|
#endif
|
|
|
|
if (first.opacity != second.opacity) {
|
|
changedContextSensitiveProperties.add(StyleDifferenceContextSensitiveProperty::Opacity);
|
|
// Don't return true; keep looking for another change.
|
|
}
|
|
|
|
if (first.filter != second.filter) {
|
|
changedContextSensitiveProperties.add(StyleDifferenceContextSensitiveProperty::Filter);
|
|
// Don't return true; keep looking for another change.
|
|
}
|
|
|
|
#if ENABLE(FILTERS_LEVEL_2)
|
|
if (first.backdropFilter != second.backdropFilter) {
|
|
changedContextSensitiveProperties.add(StyleDifferenceContextSensitiveProperty::Filter);
|
|
// Don't return true; keep looking for another change.
|
|
}
|
|
#endif
|
|
|
|
if (first.mask != second.mask || first.maskBoxImage != second.maskBoxImage)
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
bool RenderStyle::changeRequiresLayerRepaint(const RenderStyle& other, OptionSet<StyleDifferenceContextSensitiveProperty>& changedContextSensitiveProperties) const
|
|
{
|
|
// Style::Resolver has ensured that zIndex is non-auto only if it's applicable.
|
|
if (m_boxData->usedZIndex() != other.m_boxData->usedZIndex() || m_boxData->hasAutoUsedZIndex() != other.m_boxData->hasAutoUsedZIndex())
|
|
return true;
|
|
|
|
if (position() != PositionType::Static) {
|
|
if (m_visualData->clip != other.m_visualData->clip || m_visualData->hasClip != other.m_visualData->hasClip) {
|
|
changedContextSensitiveProperties.add(StyleDifferenceContextSensitiveProperty::ClipRect);
|
|
return true;
|
|
}
|
|
}
|
|
|
|
if (m_rareNonInheritedData.ptr() != other.m_rareNonInheritedData.ptr()
|
|
&& rareNonInheritedDataChangeRequiresLayerRepaint(*m_rareNonInheritedData, *other.m_rareNonInheritedData, changedContextSensitiveProperties))
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
static bool requiresPainting(const RenderStyle& style)
|
|
{
|
|
if (style.visibility() == Visibility::Hidden)
|
|
return false;
|
|
if (!style.opacity())
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
static bool rareNonInheritedDataChangeRequiresRepaint(const StyleRareNonInheritedData& first, const StyleRareNonInheritedData& second, OptionSet<StyleDifferenceContextSensitiveProperty>& changedContextSensitiveProperties)
|
|
{
|
|
if (first.userDrag != second.userDrag
|
|
|| first.borderFit != second.borderFit
|
|
|| first.objectFit != second.objectFit
|
|
|| first.objectPosition != second.objectPosition)
|
|
return true;
|
|
|
|
if (first.isNotFinal != second.isNotFinal)
|
|
return true;
|
|
|
|
if (first.shapeOutside != second.shapeOutside)
|
|
return true;
|
|
|
|
// FIXME: this should probably be moved to changeRequiresLayerRepaint().
|
|
if (first.clipPath != second.clipPath) {
|
|
changedContextSensitiveProperties.add(StyleDifferenceContextSensitiveProperty::ClipPath);
|
|
// Don't return true; keep looking for another change.
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static bool rareInheritedDataChangeRequiresRepaint(const StyleRareInheritedData& first, const StyleRareInheritedData& second)
|
|
{
|
|
return first.userModify != second.userModify
|
|
|| first.userSelect != second.userSelect
|
|
|| first.appleColorFilter != second.appleColorFilter
|
|
|| first.imageRendering != second.imageRendering
|
|
#if ENABLE(DARK_MODE_CSS)
|
|
|| first.colorScheme != second.colorScheme
|
|
#endif
|
|
;
|
|
}
|
|
|
|
#if ENABLE(CSS_PAINTING_API)
|
|
void RenderStyle::addCustomPaintWatchProperty(const String& name)
|
|
{
|
|
auto& data = m_rareNonInheritedData.access();
|
|
if (!data.customPaintWatchedProperties)
|
|
data.customPaintWatchedProperties = makeUnique<HashSet<String>>();
|
|
data.customPaintWatchedProperties->add(name);
|
|
}
|
|
|
|
inline static bool changedCustomPaintWatchedProperty(const RenderStyle& a, const StyleRareNonInheritedData& aData, const RenderStyle& b, const StyleRareNonInheritedData& bData)
|
|
{
|
|
auto* propertiesA = aData.customPaintWatchedProperties.get();
|
|
auto* propertiesB = bData.customPaintWatchedProperties.get();
|
|
|
|
if (UNLIKELY(propertiesA || propertiesB)) {
|
|
// FIXME: We should not need to use ComputedStyleExtractor here.
|
|
ComputedStyleExtractor extractor((Element*) nullptr);
|
|
|
|
for (auto* watchPropertiesMap : { propertiesA, propertiesB }) {
|
|
if (!watchPropertiesMap)
|
|
continue;
|
|
|
|
for (auto& name : *watchPropertiesMap) {
|
|
RefPtr<CSSValue> valueA;
|
|
RefPtr<CSSValue> valueB;
|
|
if (isCustomPropertyName(name)) {
|
|
if (a.getCustomProperty(name))
|
|
valueA = CSSCustomPropertyValue::create(*a.getCustomProperty(name));
|
|
if (b.getCustomProperty(name))
|
|
valueB = CSSCustomPropertyValue::create(*b.getCustomProperty(name));
|
|
} else {
|
|
CSSPropertyID propertyID = cssPropertyID(name);
|
|
if (!propertyID)
|
|
continue;
|
|
valueA = extractor.valueForPropertyInStyle(a, propertyID);
|
|
valueB = extractor.valueForPropertyInStyle(b, propertyID);
|
|
}
|
|
|
|
if ((valueA && !valueB) || (!valueA && valueB))
|
|
return true;
|
|
|
|
if (!valueA)
|
|
continue;
|
|
|
|
if (!(*valueA == *valueB))
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
#endif
|
|
|
|
bool RenderStyle::changeRequiresRepaint(const RenderStyle& other, OptionSet<StyleDifferenceContextSensitiveProperty>& changedContextSensitiveProperties) const
|
|
{
|
|
if (!requiresPainting(*this) && !requiresPainting(other))
|
|
return false;
|
|
|
|
bool currentColorDiffers = m_inheritedData->color != other.m_inheritedData->color;
|
|
|
|
if (m_inheritedFlags.visibility != other.m_inheritedFlags.visibility
|
|
|| m_inheritedFlags.printColorAdjust != other.m_inheritedFlags.printColorAdjust
|
|
|| m_inheritedFlags.insideLink != other.m_inheritedFlags.insideLink
|
|
|| m_inheritedFlags.insideDefaultButton != other.m_inheritedFlags.insideDefaultButton
|
|
|| m_surroundData->border != other.m_surroundData->border
|
|
|| !m_backgroundData->isEquivalentForPainting(*other.m_backgroundData, currentColorDiffers))
|
|
return true;
|
|
|
|
if (m_rareNonInheritedData.ptr() != other.m_rareNonInheritedData.ptr()
|
|
&& rareNonInheritedDataChangeRequiresRepaint(*m_rareNonInheritedData, *other.m_rareNonInheritedData, changedContextSensitiveProperties))
|
|
return true;
|
|
|
|
if (m_rareInheritedData.ptr() != other.m_rareInheritedData.ptr()
|
|
&& rareInheritedDataChangeRequiresRepaint(*m_rareInheritedData, *other.m_rareInheritedData))
|
|
return true;
|
|
|
|
#if ENABLE(CSS_PAINTING_API)
|
|
if (changedCustomPaintWatchedProperty(*this, *m_rareNonInheritedData, other, *other.m_rareNonInheritedData))
|
|
return true;
|
|
#endif
|
|
|
|
return false;
|
|
}
|
|
|
|
bool RenderStyle::changeRequiresRepaintIfTextOrBorderOrOutline(const RenderStyle& other, OptionSet<StyleDifferenceContextSensitiveProperty>&) const
|
|
{
|
|
if (m_inheritedData->color != other.m_inheritedData->color
|
|
|| m_inheritedFlags.textDecorations != other.m_inheritedFlags.textDecorations
|
|
|| m_visualData->textDecoration != other.m_visualData->textDecoration
|
|
|| m_rareNonInheritedData->textDecorationStyle != other.m_rareNonInheritedData->textDecorationStyle
|
|
|| m_rareNonInheritedData->textDecorationColor != other.m_rareNonInheritedData->textDecorationColor
|
|
|| m_rareInheritedData->textDecorationSkip != other.m_rareInheritedData->textDecorationSkip
|
|
|| m_rareInheritedData->textFillColor != other.m_rareInheritedData->textFillColor
|
|
|| m_rareInheritedData->textStrokeColor != other.m_rareInheritedData->textStrokeColor
|
|
|| m_rareInheritedData->textEmphasisColor != other.m_rareInheritedData->textEmphasisColor
|
|
|| m_rareInheritedData->textEmphasisFill != other.m_rareInheritedData->textEmphasisFill
|
|
|| m_rareInheritedData->strokeColor != other.m_rareInheritedData->strokeColor
|
|
|| m_rareInheritedData->caretColor != other.m_rareInheritedData->caretColor)
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
bool RenderStyle::changeRequiresRecompositeLayer(const RenderStyle& other, OptionSet<StyleDifferenceContextSensitiveProperty>&) const
|
|
{
|
|
if (m_inheritedFlags.pointerEvents != other.m_inheritedFlags.pointerEvents)
|
|
return true;
|
|
|
|
if (m_rareNonInheritedData.ptr() != other.m_rareNonInheritedData.ptr()) {
|
|
if (m_rareNonInheritedData->transformStyle3D != other.m_rareNonInheritedData->transformStyle3D
|
|
|| m_rareNonInheritedData->backfaceVisibility != other.m_rareNonInheritedData->backfaceVisibility
|
|
|| m_rareNonInheritedData->perspective != other.m_rareNonInheritedData->perspective
|
|
|| m_rareNonInheritedData->perspectiveOriginX != other.m_rareNonInheritedData->perspectiveOriginX
|
|
|| m_rareNonInheritedData->perspectiveOriginY != other.m_rareNonInheritedData->perspectiveOriginY)
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
StyleDifference RenderStyle::diff(const RenderStyle& other, OptionSet<StyleDifferenceContextSensitiveProperty>& changedContextSensitiveProperties) const
|
|
{
|
|
changedContextSensitiveProperties = OptionSet<StyleDifferenceContextSensitiveProperty>();
|
|
|
|
StyleDifference svgChange = StyleDifference::Equal;
|
|
if (m_svgStyle != other.m_svgStyle) {
|
|
svgChange = m_svgStyle->diff(other.m_svgStyle.get());
|
|
if (svgChange == StyleDifference::Layout)
|
|
return svgChange;
|
|
}
|
|
|
|
if (changeRequiresLayout(other, changedContextSensitiveProperties))
|
|
return StyleDifference::Layout;
|
|
|
|
// SVGRenderStyle::diff() might have returned StyleDifference::Repaint, eg. if fill changes.
|
|
// If eg. the font-size changed at the same time, we're not allowed to return StyleDifference::Repaint,
|
|
// but have to return StyleDifference::Layout, that's why this if branch comes after all branches
|
|
// that are relevant for SVG and might return StyleDifference::Layout.
|
|
if (svgChange != StyleDifference::Equal)
|
|
return svgChange;
|
|
|
|
if (changeRequiresPositionedLayoutOnly(other, changedContextSensitiveProperties))
|
|
return StyleDifference::LayoutPositionedMovementOnly;
|
|
|
|
if (changeRequiresLayerRepaint(other, changedContextSensitiveProperties))
|
|
return StyleDifference::RepaintLayer;
|
|
|
|
if (changeRequiresRepaint(other, changedContextSensitiveProperties))
|
|
return StyleDifference::Repaint;
|
|
|
|
if (changeRequiresRepaintIfTextOrBorderOrOutline(other, changedContextSensitiveProperties))
|
|
return StyleDifference::RepaintIfTextOrBorderOrOutline;
|
|
|
|
// FIXME: RecompositeLayer should also behave as a priority bit (e.g when the style change requires layout, we know that
|
|
// the content also needs repaint and it will eventually get repainted,
|
|
// but a repaint type of change (e.g. color change) does not necessarily trigger recomposition).
|
|
if (changeRequiresRecompositeLayer(other, changedContextSensitiveProperties))
|
|
return StyleDifference::RecompositeLayer;
|
|
|
|
// Cursors are not checked, since they will be set appropriately in response to mouse events,
|
|
// so they don't need to cause any repaint or layout.
|
|
|
|
// Animations don't need to be checked either. We always set the new style on the RenderObject, so we will get a chance to fire off
|
|
// the resulting transition properly.
|
|
return StyleDifference::Equal;
|
|
}
|
|
|
|
bool RenderStyle::diffRequiresLayerRepaint(const RenderStyle& style, bool isComposited) const
|
|
{
|
|
OptionSet<StyleDifferenceContextSensitiveProperty> changedContextSensitiveProperties;
|
|
|
|
if (changeRequiresRepaint(style, changedContextSensitiveProperties))
|
|
return true;
|
|
|
|
if (isComposited && changeRequiresLayerRepaint(style, changedContextSensitiveProperties))
|
|
return changedContextSensitiveProperties.contains(StyleDifferenceContextSensitiveProperty::ClipRect);
|
|
|
|
return false;
|
|
}
|
|
|
|
void RenderStyle::setClip(Length&& top, Length&& right, Length&& bottom, Length&& left)
|
|
{
|
|
auto& data = m_visualData.access();
|
|
data.clip.top() = WTFMove(top);
|
|
data.clip.right() = WTFMove(right);
|
|
data.clip.bottom() = WTFMove(bottom);
|
|
data.clip.left() = WTFMove(left);
|
|
}
|
|
|
|
void RenderStyle::addCursor(RefPtr<StyleImage>&& image, const std::optional<IntPoint>& hotSpot)
|
|
{
|
|
auto& cursorData = m_rareInheritedData.access().cursorData;
|
|
if (!cursorData)
|
|
cursorData = CursorList::create();
|
|
// Point outside the image is how we tell the cursor machinery there is no hot spot, and it should generate one (done in the Cursor class).
|
|
// FIXME: Would it be better to extend the concept of "no hot spot" deeper, into CursorData and beyond, rather than using -1/-1 for it?
|
|
cursorData->append(CursorData(WTFMove(image), hotSpot.value_or(IntPoint { -1, -1 })));
|
|
}
|
|
|
|
void RenderStyle::setCursorList(RefPtr<CursorList>&& list)
|
|
{
|
|
m_rareInheritedData.access().cursorData = WTFMove(list);
|
|
}
|
|
|
|
void RenderStyle::setQuotes(RefPtr<QuotesData>&& q)
|
|
{
|
|
if (m_rareInheritedData->quotes == q || (m_rareInheritedData->quotes && q && *m_rareInheritedData->quotes == *q))
|
|
return;
|
|
|
|
m_rareInheritedData.access().quotes = WTFMove(q);
|
|
}
|
|
|
|
void RenderStyle::setWillChange(RefPtr<WillChangeData>&& willChangeData)
|
|
{
|
|
if (arePointingToEqualData(m_rareNonInheritedData->willChange.get(), willChangeData.get()))
|
|
return;
|
|
|
|
m_rareNonInheritedData.access().willChange = WTFMove(willChangeData);
|
|
}
|
|
|
|
void RenderStyle::setScale(RefPtr<ScaleTransformOperation>&& t)
|
|
{
|
|
m_rareNonInheritedData.access().scale = WTFMove(t);
|
|
}
|
|
|
|
void RenderStyle::setRotate(RefPtr<RotateTransformOperation>&& t)
|
|
{
|
|
m_rareNonInheritedData.access().rotate = WTFMove(t);
|
|
}
|
|
|
|
void RenderStyle::setTranslate(RefPtr<TranslateTransformOperation>&& t)
|
|
{
|
|
m_rareNonInheritedData.access().translate = WTFMove(t);
|
|
}
|
|
|
|
void RenderStyle::clearCursorList()
|
|
{
|
|
if (m_rareInheritedData->cursorData)
|
|
m_rareInheritedData.access().cursorData = nullptr;
|
|
}
|
|
|
|
void RenderStyle::clearContent()
|
|
{
|
|
if (m_rareNonInheritedData->content)
|
|
m_rareNonInheritedData.access().content = nullptr;
|
|
}
|
|
|
|
static inline ContentData& lastContent(ContentData& firstContent)
|
|
{
|
|
auto* lastContent = &firstContent;
|
|
for (auto* content = &firstContent; content; content = content->next())
|
|
lastContent = content;
|
|
return *lastContent;
|
|
}
|
|
|
|
void RenderStyle::setContent(std::unique_ptr<ContentData> contentData, bool add)
|
|
{
|
|
auto& data = m_rareNonInheritedData.access();
|
|
if (add && data.content)
|
|
lastContent(*data.content).setNext(WTFMove(contentData));
|
|
else {
|
|
data.content = WTFMove(contentData);
|
|
auto& altText = data.altText;
|
|
if (!altText.isNull())
|
|
data.content->setAltText(altText);
|
|
}
|
|
}
|
|
|
|
void RenderStyle::setContent(RefPtr<StyleImage>&& image, bool add)
|
|
{
|
|
if (!image)
|
|
return;
|
|
setContent(makeUnique<ImageContentData>(image.releaseNonNull()), add);
|
|
}
|
|
|
|
void RenderStyle::setContent(const String& string, bool add)
|
|
{
|
|
auto& data = m_rareNonInheritedData.access();
|
|
if (add && data.content) {
|
|
auto& last = lastContent(*data.content);
|
|
if (!is<TextContentData>(last))
|
|
last.setNext(makeUnique<TextContentData>(string));
|
|
else {
|
|
auto& textContent = downcast<TextContentData>(last);
|
|
textContent.setText(textContent.text() + string);
|
|
}
|
|
} else {
|
|
data.content = makeUnique<TextContentData>(string);
|
|
auto& altText = data.altText;
|
|
if (!altText.isNull())
|
|
data.content->setAltText(altText);
|
|
}
|
|
}
|
|
|
|
void RenderStyle::setContent(std::unique_ptr<CounterContent> counter, bool add)
|
|
{
|
|
if (!counter)
|
|
return;
|
|
setContent(makeUnique<CounterContentData>(WTFMove(counter)), add);
|
|
}
|
|
|
|
void RenderStyle::setContent(QuoteType quote, bool add)
|
|
{
|
|
setContent(makeUnique<QuoteContentData>(quote), add);
|
|
}
|
|
|
|
void RenderStyle::setContentAltText(const String& string)
|
|
{
|
|
auto& data = m_rareNonInheritedData.access();
|
|
data.altText = string;
|
|
if (data.content)
|
|
data.content->setAltText(string);
|
|
}
|
|
|
|
const String& RenderStyle::contentAltText() const
|
|
{
|
|
return m_rareNonInheritedData->altText;
|
|
}
|
|
|
|
void RenderStyle::setHasAttrContent()
|
|
{
|
|
setUnique();
|
|
SET_VAR(m_rareNonInheritedData, hasAttrContent, true);
|
|
}
|
|
|
|
void RenderStyle::applyTransform(TransformationMatrix& transform, const FloatRect& boundingBox, OptionSet<RenderStyle::TransformOperationOption> options) const
|
|
{
|
|
// https://www.w3.org/TR/css-transforms-2/#ctm
|
|
// The transformation matrix is computed from the transform, transform-origin, translate, rotate, scale, and offset properties as follows:
|
|
// 1. Start with the identity matrix.
|
|
|
|
auto& transformOperations = m_rareNonInheritedData->transform->operations;
|
|
bool applyTransformOrigin = options.contains(RenderStyle::TransformOperationOption::TransformOrigin) && ((m_rareNonInheritedData->rotate && !m_rareNonInheritedData->rotate->isIdentity()) || (m_rareNonInheritedData->scale && !m_rareNonInheritedData->scale->isIdentity()) || transformOperations.affectedByTransformOrigin());
|
|
|
|
// 2. Translate by the computed X, Y, and Z values of transform-origin.
|
|
FloatPoint3D originTranslate;
|
|
if (applyTransformOrigin) {
|
|
originTranslate.setXY(boundingBox.location() + floatPointForLengthPoint(transformOriginXY(), boundingBox.size()));
|
|
originTranslate.setZ(transformOriginZ());
|
|
transform.translate3d(originTranslate.x(), originTranslate.y(), originTranslate.z());
|
|
}
|
|
|
|
// 3. Translate by the computed X, Y, and Z values of translate.
|
|
if (options.contains(RenderStyle::TransformOperationOption::Translate)) {
|
|
if (TransformOperation* translate = m_rareNonInheritedData->translate.get())
|
|
translate->apply(transform, boundingBox.size());
|
|
}
|
|
|
|
// 4. Rotate by the computed <angle> about the specified axis of rotate.
|
|
if (options.contains(RenderStyle::TransformOperationOption::Rotate)) {
|
|
if (TransformOperation* rotate = m_rareNonInheritedData->rotate.get())
|
|
rotate->apply(transform, boundingBox.size());
|
|
}
|
|
|
|
// 5. Scale by the computed X, Y, and Z values of scale.
|
|
if (options.contains(RenderStyle::TransformOperationOption::Scale)) {
|
|
if (TransformOperation* scale = m_rareNonInheritedData->scale.get())
|
|
scale->apply(transform, boundingBox.size());
|
|
}
|
|
|
|
// 6. Translate and rotate by the transform specified by offset. (FIXME: we don't support the offset property)
|
|
|
|
// 7. Multiply by each of the transform functions in transform from left to right.
|
|
for (auto& operation : transformOperations.operations())
|
|
operation->apply(transform, boundingBox.size());
|
|
|
|
// 8. Translate by the negated computed X, Y and Z values of transform-origin.
|
|
if (applyTransformOrigin)
|
|
transform.translate3d(-originTranslate.x(), -originTranslate.y(), -originTranslate.z());
|
|
}
|
|
|
|
void RenderStyle::setPageScaleTransform(float scale)
|
|
{
|
|
if (scale == 1)
|
|
return;
|
|
TransformOperations transform;
|
|
transform.operations().append(ScaleTransformOperation::create(scale, scale, ScaleTransformOperation::SCALE));
|
|
setTransform(transform);
|
|
setTransformOriginX(Length(0, LengthType::Fixed));
|
|
setTransformOriginY(Length(0, LengthType::Fixed));
|
|
}
|
|
|
|
void RenderStyle::setTextShadow(std::unique_ptr<ShadowData> shadowData, bool add)
|
|
{
|
|
ASSERT(!shadowData || (!shadowData->spread() && shadowData->style() == ShadowStyle::Normal));
|
|
|
|
auto& rareData = m_rareInheritedData.access();
|
|
if (!add) {
|
|
rareData.textShadow = WTFMove(shadowData);
|
|
return;
|
|
}
|
|
|
|
shadowData->setNext(WTFMove(rareData.textShadow));
|
|
rareData.textShadow = WTFMove(shadowData);
|
|
}
|
|
|
|
void RenderStyle::setBoxShadow(std::unique_ptr<ShadowData> shadowData, bool add)
|
|
{
|
|
auto& rareData = m_rareNonInheritedData.access();
|
|
if (!add) {
|
|
rareData.boxShadow = WTFMove(shadowData);
|
|
return;
|
|
}
|
|
|
|
shadowData->setNext(WTFMove(rareData.boxShadow));
|
|
rareData.boxShadow = WTFMove(shadowData);
|
|
}
|
|
|
|
static RoundedRect::Radii calcRadiiFor(const BorderData& border, const LayoutSize& size)
|
|
{
|
|
return {
|
|
sizeForLengthSize(border.topLeftRadius(), size),
|
|
sizeForLengthSize(border.topRightRadius(), size),
|
|
sizeForLengthSize(border.bottomLeftRadius(), size),
|
|
sizeForLengthSize(border.bottomRightRadius(), size)
|
|
};
|
|
}
|
|
|
|
StyleImage* RenderStyle::listStyleImage() const
|
|
{
|
|
return m_rareInheritedData->listStyleImage.get();
|
|
}
|
|
|
|
void RenderStyle::setListStyleImage(RefPtr<StyleImage>&& v)
|
|
{
|
|
if (m_rareInheritedData->listStyleImage != v)
|
|
m_rareInheritedData.access().listStyleImage = WTFMove(v);
|
|
}
|
|
|
|
const Color& RenderStyle::color() const
|
|
{
|
|
return m_inheritedData->color;
|
|
}
|
|
|
|
const Color& RenderStyle::visitedLinkColor() const
|
|
{
|
|
return m_inheritedData->visitedLinkColor;
|
|
}
|
|
|
|
void RenderStyle::setColor(const Color& v)
|
|
{
|
|
SET_VAR(m_inheritedData, color, v);
|
|
}
|
|
|
|
void RenderStyle::setVisitedLinkColor(const Color& v)
|
|
{
|
|
SET_VAR(m_inheritedData, visitedLinkColor, v);
|
|
}
|
|
|
|
float RenderStyle::horizontalBorderSpacing() const
|
|
{
|
|
return m_inheritedData->horizontalBorderSpacing;
|
|
}
|
|
|
|
float RenderStyle::verticalBorderSpacing() const
|
|
{
|
|
return m_inheritedData->verticalBorderSpacing;
|
|
}
|
|
|
|
void RenderStyle::setHorizontalBorderSpacing(float v)
|
|
{
|
|
SET_VAR(m_inheritedData, horizontalBorderSpacing, v);
|
|
}
|
|
|
|
void RenderStyle::setVerticalBorderSpacing(float v)
|
|
{
|
|
SET_VAR(m_inheritedData, verticalBorderSpacing, v);
|
|
}
|
|
|
|
RoundedRect RenderStyle::getRoundedBorderFor(const LayoutRect& borderRect, bool includeLogicalLeftEdge, bool includeLogicalRightEdge) const
|
|
{
|
|
RoundedRect roundedRect(borderRect);
|
|
if (hasBorderRadius()) {
|
|
RoundedRect::Radii radii = calcRadiiFor(m_surroundData->border, borderRect.size());
|
|
radii.scale(calcBorderRadiiConstraintScaleFor(borderRect, radii));
|
|
roundedRect.includeLogicalEdges(radii, isHorizontalWritingMode(), includeLogicalLeftEdge, includeLogicalRightEdge);
|
|
}
|
|
return roundedRect;
|
|
}
|
|
|
|
RoundedRect RenderStyle::getRoundedInnerBorderFor(const LayoutRect& borderRect, bool includeLogicalLeftEdge, bool includeLogicalRightEdge) const
|
|
{
|
|
bool horizontal = isHorizontalWritingMode();
|
|
LayoutUnit leftWidth { (!horizontal || includeLogicalLeftEdge) ? borderLeftWidth() : 0 };
|
|
LayoutUnit rightWidth { (!horizontal || includeLogicalRightEdge) ? borderRightWidth() : 0 };
|
|
LayoutUnit topWidth { (horizontal || includeLogicalLeftEdge) ? borderTopWidth() : 0 };
|
|
LayoutUnit bottomWidth { (horizontal || includeLogicalRightEdge) ? borderBottomWidth() : 0 };
|
|
return getRoundedInnerBorderFor(borderRect, topWidth, bottomWidth, leftWidth, rightWidth, includeLogicalLeftEdge, includeLogicalRightEdge);
|
|
}
|
|
|
|
RoundedRect RenderStyle::getRoundedInnerBorderFor(const LayoutRect& borderRect, LayoutUnit topWidth, LayoutUnit bottomWidth,
|
|
LayoutUnit leftWidth, LayoutUnit rightWidth, bool includeLogicalLeftEdge, bool includeLogicalRightEdge) const
|
|
{
|
|
auto width = std::max(0_lu, borderRect.width() - leftWidth - rightWidth);
|
|
auto height = std::max(0_lu, borderRect.height() - topWidth - bottomWidth);
|
|
auto roundedRect = RoundedRect {
|
|
borderRect.x() + leftWidth,
|
|
borderRect.y() + topWidth,
|
|
width,
|
|
height
|
|
};
|
|
if (hasBorderRadius()) {
|
|
auto radii = getRoundedBorderFor(borderRect).radii();
|
|
radii.shrink(topWidth, bottomWidth, leftWidth, rightWidth);
|
|
roundedRect.includeLogicalEdges(radii, isHorizontalWritingMode(), includeLogicalLeftEdge, includeLogicalRightEdge);
|
|
}
|
|
return roundedRect;
|
|
}
|
|
|
|
static bool allLayersAreFixed(const FillLayer& layers)
|
|
{
|
|
for (auto* layer = &layers; layer; layer = layer->next()) {
|
|
if (!(layer->image() && layer->attachment() == FillAttachment::FixedBackground))
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool RenderStyle::hasEntirelyFixedBackground() const
|
|
{
|
|
return allLayersAreFixed(backgroundLayers());
|
|
}
|
|
|
|
const CounterDirectiveMap* RenderStyle::counterDirectives() const
|
|
{
|
|
return m_rareNonInheritedData->counterDirectives.get();
|
|
}
|
|
|
|
CounterDirectiveMap& RenderStyle::accessCounterDirectives()
|
|
{
|
|
auto& map = m_rareNonInheritedData.access().counterDirectives;
|
|
if (!map)
|
|
map = makeUnique<CounterDirectiveMap>();
|
|
return *map;
|
|
}
|
|
|
|
const AtomString& RenderStyle::hyphenString() const
|
|
{
|
|
ASSERT(hyphens() != Hyphens::None);
|
|
|
|
auto& hyphenationString = m_rareInheritedData->hyphenationString;
|
|
if (!hyphenationString.isNull())
|
|
return hyphenationString;
|
|
|
|
// FIXME: This should depend on locale.
|
|
static MainThreadNeverDestroyed<const AtomString> hyphenMinusString(&hyphenMinus, 1);
|
|
static MainThreadNeverDestroyed<const AtomString> hyphenString(&hyphen, 1);
|
|
return fontCascade().primaryFont().glyphForCharacter(hyphen) ? hyphenString : hyphenMinusString;
|
|
}
|
|
|
|
const AtomString& RenderStyle::textEmphasisMarkString() const
|
|
{
|
|
switch (textEmphasisMark()) {
|
|
case TextEmphasisMark::None:
|
|
return nullAtom();
|
|
case TextEmphasisMark::Custom:
|
|
return textEmphasisCustomMark();
|
|
case TextEmphasisMark::Dot: {
|
|
static MainThreadNeverDestroyed<const AtomString> filledDotString(&bullet, 1);
|
|
static MainThreadNeverDestroyed<const AtomString> openDotString(&whiteBullet, 1);
|
|
return textEmphasisFill() == TextEmphasisFill::Filled ? filledDotString : openDotString;
|
|
}
|
|
case TextEmphasisMark::Circle: {
|
|
static MainThreadNeverDestroyed<const AtomString> filledCircleString(&blackCircle, 1);
|
|
static MainThreadNeverDestroyed<const AtomString> openCircleString(&whiteCircle, 1);
|
|
return textEmphasisFill() == TextEmphasisFill::Filled ? filledCircleString : openCircleString;
|
|
}
|
|
case TextEmphasisMark::DoubleCircle: {
|
|
static MainThreadNeverDestroyed<const AtomString> filledDoubleCircleString(&fisheye, 1);
|
|
static MainThreadNeverDestroyed<const AtomString> openDoubleCircleString(&bullseye, 1);
|
|
return textEmphasisFill() == TextEmphasisFill::Filled ? filledDoubleCircleString : openDoubleCircleString;
|
|
}
|
|
case TextEmphasisMark::Triangle: {
|
|
static MainThreadNeverDestroyed<const AtomString> filledTriangleString(&blackUpPointingTriangle, 1);
|
|
static MainThreadNeverDestroyed<const AtomString> openTriangleString(&whiteUpPointingTriangle, 1);
|
|
return textEmphasisFill() == TextEmphasisFill::Filled ? filledTriangleString : openTriangleString;
|
|
}
|
|
case TextEmphasisMark::Sesame: {
|
|
static MainThreadNeverDestroyed<const AtomString> filledSesameString(&sesameDot, 1);
|
|
static MainThreadNeverDestroyed<const AtomString> openSesameString(&whiteSesameDot, 1);
|
|
return textEmphasisFill() == TextEmphasisFill::Filled ? filledSesameString : openSesameString;
|
|
}
|
|
case TextEmphasisMark::Auto:
|
|
ASSERT_NOT_REACHED();
|
|
return nullAtom();
|
|
}
|
|
|
|
ASSERT_NOT_REACHED();
|
|
return nullAtom();
|
|
}
|
|
|
|
void RenderStyle::adjustAnimations()
|
|
{
|
|
auto* animationList = m_rareNonInheritedData->animations.get();
|
|
if (!animationList)
|
|
return;
|
|
|
|
// Get rid of empty animations and anything beyond them
|
|
for (size_t i = 0, size = animationList->size(); i < size; ++i) {
|
|
if (animationList->animation(i).isEmpty()) {
|
|
animationList->resize(i);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (animationList->isEmpty()) {
|
|
clearAnimations();
|
|
return;
|
|
}
|
|
|
|
// Repeat patterns into layers that don't have some properties set.
|
|
animationList->fillUnsetProperties();
|
|
}
|
|
|
|
void RenderStyle::adjustTransitions()
|
|
{
|
|
auto* transitionList = m_rareNonInheritedData->transitions.get();
|
|
if (!transitionList)
|
|
return;
|
|
|
|
// Get rid of empty transitions and anything beyond them
|
|
for (size_t i = 0, size = transitionList->size(); i < size; ++i) {
|
|
if (transitionList->animation(i).isEmpty()) {
|
|
transitionList->resize(i);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (transitionList->isEmpty()) {
|
|
clearTransitions();
|
|
return;
|
|
}
|
|
|
|
// Repeat patterns into layers that don't have some properties set.
|
|
transitionList->fillUnsetProperties();
|
|
|
|
// Make sure there are no duplicate properties.
|
|
// This is an O(n^2) algorithm but the lists tend to be short, so it is probably OK.
|
|
for (size_t i = 0; i < transitionList->size(); ++i) {
|
|
for (size_t j = i + 1; j < transitionList->size(); ++j) {
|
|
if (transitionList->animation(i).property().id == transitionList->animation(j).property().id) {
|
|
// toss i
|
|
transitionList->remove(i);
|
|
j = i;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
AnimationList& RenderStyle::ensureAnimations()
|
|
{
|
|
if (!m_rareNonInheritedData.access().animations)
|
|
m_rareNonInheritedData.access().animations = AnimationList::create();
|
|
return *m_rareNonInheritedData->animations;
|
|
}
|
|
|
|
AnimationList& RenderStyle::ensureTransitions()
|
|
{
|
|
if (!m_rareNonInheritedData.access().transitions)
|
|
m_rareNonInheritedData.access().transitions = AnimationList::create();
|
|
return *m_rareNonInheritedData->transitions;
|
|
}
|
|
|
|
const Animation* RenderStyle::transitionForProperty(CSSPropertyID property) const
|
|
{
|
|
auto* transitions = this->transitions();
|
|
if (!transitions)
|
|
return nullptr;
|
|
for (size_t i = 0, size = transitions->size(); i < size; ++i) {
|
|
auto& animation = transitions->animation(i);
|
|
if (animation.property().mode == Animation::TransitionMode::All || animation.property().id == property)
|
|
return &animation;
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
const FontCascade& RenderStyle::fontCascade() const
|
|
{
|
|
return m_inheritedData->fontCascade;
|
|
}
|
|
|
|
const FontMetrics& RenderStyle::fontMetrics() const
|
|
{
|
|
return m_inheritedData->fontCascade.fontMetrics();
|
|
}
|
|
|
|
const FontCascadeDescription& RenderStyle::fontDescription() const
|
|
{
|
|
return m_inheritedData->fontCascade.fontDescription();
|
|
}
|
|
|
|
float RenderStyle::specifiedFontSize() const
|
|
{
|
|
return fontDescription().specifiedSize();
|
|
}
|
|
|
|
float RenderStyle::computedFontSize() const
|
|
{
|
|
return fontDescription().computedSize();
|
|
}
|
|
|
|
unsigned RenderStyle::computedFontPixelSize() const
|
|
{
|
|
return fontDescription().computedPixelSize();
|
|
}
|
|
|
|
const Length& RenderStyle::wordSpacing() const
|
|
{
|
|
return m_rareInheritedData->wordSpacing;
|
|
}
|
|
|
|
float RenderStyle::letterSpacing() const
|
|
{
|
|
return m_inheritedData->fontCascade.letterSpacing();
|
|
}
|
|
|
|
bool RenderStyle::setFontDescription(FontCascadeDescription&& description)
|
|
{
|
|
if (m_inheritedData->fontCascade.fontDescription() == description)
|
|
return false;
|
|
auto& cascade = m_inheritedData.access().fontCascade;
|
|
cascade = { WTFMove(description), cascade.letterSpacing(), cascade.wordSpacing() };
|
|
return true;
|
|
}
|
|
|
|
const Length& RenderStyle::specifiedLineHeight() const
|
|
{
|
|
#if ENABLE(TEXT_AUTOSIZING)
|
|
return m_inheritedData->specifiedLineHeight;
|
|
#else
|
|
return m_inheritedData->lineHeight;
|
|
#endif
|
|
}
|
|
|
|
#if ENABLE(TEXT_AUTOSIZING)
|
|
|
|
void RenderStyle::setSpecifiedLineHeight(Length&& height)
|
|
{
|
|
SET_VAR(m_inheritedData, specifiedLineHeight, WTFMove(height));
|
|
}
|
|
|
|
#endif
|
|
|
|
const Length& RenderStyle::lineHeight() const
|
|
{
|
|
return m_inheritedData->lineHeight;
|
|
}
|
|
|
|
void RenderStyle::setLineHeight(Length&& height)
|
|
{
|
|
SET_VAR(m_inheritedData, lineHeight, WTFMove(height));
|
|
}
|
|
|
|
int RenderStyle::computedLineHeight() const
|
|
{
|
|
return computeLineHeight(lineHeight());
|
|
}
|
|
|
|
int RenderStyle::computeLineHeight(const Length& lineHeightLength) const
|
|
{
|
|
// Negative value means the line height is not set. Use the font's built-in spacing.
|
|
if (lineHeightLength.isNegative())
|
|
return fontMetrics().lineSpacing();
|
|
|
|
if (lineHeightLength.isPercentOrCalculated())
|
|
return minimumValueForLength(lineHeightLength, computedFontPixelSize());
|
|
|
|
return clampTo<int>(lineHeightLength.value());
|
|
}
|
|
|
|
void RenderStyle::setWordSpacing(Length&& value)
|
|
{
|
|
float fontWordSpacing;
|
|
switch (value.type()) {
|
|
case LengthType::Auto:
|
|
fontWordSpacing = 0;
|
|
break;
|
|
case LengthType::Percent:
|
|
fontWordSpacing = value.percent() * fontCascade().spaceWidth() / 100;
|
|
break;
|
|
case LengthType::Fixed:
|
|
fontWordSpacing = value.value();
|
|
break;
|
|
case LengthType::Calculated:
|
|
fontWordSpacing = value.nonNanCalculatedValue(maxValueForCssLength);
|
|
break;
|
|
default:
|
|
ASSERT_NOT_REACHED();
|
|
fontWordSpacing = 0;
|
|
break;
|
|
}
|
|
m_inheritedData.access().fontCascade.setWordSpacing(fontWordSpacing);
|
|
m_rareInheritedData.access().wordSpacing = WTFMove(value);
|
|
}
|
|
|
|
void RenderStyle::setLetterSpacing(float letterSpacing)
|
|
{
|
|
FontSelector* currentFontSelector = fontCascade().fontSelector();
|
|
auto description = fontDescription();
|
|
description.setShouldDisableLigaturesForSpacing(letterSpacing);
|
|
setFontDescription(WTFMove(description));
|
|
fontCascade().update(currentFontSelector);
|
|
|
|
setLetterSpacingWithoutUpdatingFontDescription(letterSpacing);
|
|
}
|
|
|
|
void RenderStyle::setLetterSpacingWithoutUpdatingFontDescription(float letterSpacing)
|
|
{
|
|
m_inheritedData.access().fontCascade.setLetterSpacing(letterSpacing);
|
|
}
|
|
|
|
void RenderStyle::setFontSize(float size)
|
|
{
|
|
// size must be specifiedSize if Text Autosizing is enabled, but computedSize if text
|
|
// zoom is enabled (if neither is enabled it's irrelevant as they're probably the same).
|
|
|
|
ASSERT(std::isfinite(size));
|
|
if (!std::isfinite(size) || size < 0)
|
|
size = 0;
|
|
else
|
|
size = std::min(maximumAllowedFontSize, size);
|
|
|
|
FontSelector* currentFontSelector = fontCascade().fontSelector();
|
|
auto description = fontDescription();
|
|
description.setSpecifiedSize(size);
|
|
description.setComputedSize(size);
|
|
|
|
setFontDescription(WTFMove(description));
|
|
fontCascade().update(currentFontSelector);
|
|
}
|
|
|
|
void RenderStyle::setFontVariationSettings(FontVariationSettings settings)
|
|
{
|
|
FontSelector* currentFontSelector = fontCascade().fontSelector();
|
|
auto description = fontDescription();
|
|
description.setVariationSettings(WTFMove(settings));
|
|
|
|
setFontDescription(WTFMove(description));
|
|
fontCascade().update(currentFontSelector);
|
|
}
|
|
|
|
void RenderStyle::setFontWeight(FontSelectionValue value)
|
|
{
|
|
FontSelector* currentFontSelector = fontCascade().fontSelector();
|
|
auto description = fontDescription();
|
|
description.setWeight(value);
|
|
|
|
setFontDescription(WTFMove(description));
|
|
fontCascade().update(currentFontSelector);
|
|
}
|
|
|
|
void RenderStyle::setFontStretch(FontSelectionValue value)
|
|
{
|
|
FontSelector* currentFontSelector = fontCascade().fontSelector();
|
|
auto description = fontDescription();
|
|
description.setStretch(value);
|
|
|
|
setFontDescription(WTFMove(description));
|
|
fontCascade().update(currentFontSelector);
|
|
}
|
|
|
|
void RenderStyle::setFontItalic(std::optional<FontSelectionValue> value)
|
|
{
|
|
FontSelector* currentFontSelector = fontCascade().fontSelector();
|
|
auto description = fontDescription();
|
|
description.setItalic(value);
|
|
|
|
setFontDescription(WTFMove(description));
|
|
fontCascade().update(currentFontSelector);
|
|
}
|
|
|
|
LayoutBoxExtent RenderStyle::shadowExtent(const ShadowData* shadow)
|
|
{
|
|
LayoutUnit top;
|
|
LayoutUnit right;
|
|
LayoutUnit bottom;
|
|
LayoutUnit left;
|
|
|
|
for ( ; shadow; shadow = shadow->next()) {
|
|
if (shadow->style() == ShadowStyle::Inset)
|
|
continue;
|
|
|
|
auto extentAndSpread = shadow->paintingExtent() + shadow->spread();
|
|
top = std::min<LayoutUnit>(top, shadow->y() - extentAndSpread);
|
|
right = std::max<LayoutUnit>(right, shadow->x() + extentAndSpread);
|
|
bottom = std::max<LayoutUnit>(bottom, shadow->y() + extentAndSpread);
|
|
left = std::min<LayoutUnit>(left, shadow->x() - extentAndSpread);
|
|
}
|
|
|
|
return { top, right, bottom, left };
|
|
}
|
|
|
|
LayoutBoxExtent RenderStyle::shadowInsetExtent(const ShadowData* shadow)
|
|
{
|
|
LayoutUnit top;
|
|
LayoutUnit right;
|
|
LayoutUnit bottom;
|
|
LayoutUnit left;
|
|
|
|
for ( ; shadow; shadow = shadow->next()) {
|
|
if (shadow->style() == ShadowStyle::Normal)
|
|
continue;
|
|
|
|
auto extentAndSpread = shadow->paintingExtent() + shadow->spread();
|
|
top = std::max<LayoutUnit>(top, shadow->y() + extentAndSpread);
|
|
right = std::min<LayoutUnit>(right, shadow->x() - extentAndSpread);
|
|
bottom = std::min<LayoutUnit>(bottom, shadow->y() - extentAndSpread);
|
|
left = std::max<LayoutUnit>(left, shadow->x() + extentAndSpread);
|
|
}
|
|
|
|
return { top, right, bottom, left };
|
|
}
|
|
|
|
void RenderStyle::getShadowHorizontalExtent(const ShadowData* shadow, LayoutUnit &left, LayoutUnit &right)
|
|
{
|
|
left = 0;
|
|
right = 0;
|
|
|
|
for ( ; shadow; shadow = shadow->next()) {
|
|
if (shadow->style() == ShadowStyle::Inset)
|
|
continue;
|
|
|
|
auto extentAndSpread = shadow->paintingExtent() + shadow->spread();
|
|
left = std::min<LayoutUnit>(left, shadow->x() - extentAndSpread);
|
|
right = std::max<LayoutUnit>(right, shadow->x() + extentAndSpread);
|
|
}
|
|
}
|
|
|
|
void RenderStyle::getShadowVerticalExtent(const ShadowData* shadow, LayoutUnit &top, LayoutUnit &bottom)
|
|
{
|
|
top = 0;
|
|
bottom = 0;
|
|
|
|
for ( ; shadow; shadow = shadow->next()) {
|
|
if (shadow->style() == ShadowStyle::Inset)
|
|
continue;
|
|
|
|
auto extentAndSpread = shadow->paintingExtent() + shadow->spread();
|
|
top = std::min<LayoutUnit>(top, shadow->y() - extentAndSpread);
|
|
bottom = std::max<LayoutUnit>(bottom, shadow->y() + extentAndSpread);
|
|
}
|
|
}
|
|
|
|
Color RenderStyle::unresolvedColorForProperty(CSSPropertyID colorProperty, bool visitedLink) const
|
|
{
|
|
switch (colorProperty) {
|
|
case CSSPropertyColor:
|
|
return visitedLink ? visitedLinkColor() : color();
|
|
case CSSPropertyBackgroundColor:
|
|
return visitedLink ? visitedLinkBackgroundColor() : backgroundColor();
|
|
case CSSPropertyBorderBottomColor:
|
|
return visitedLink ? visitedLinkBorderBottomColor() : borderBottomColor();
|
|
case CSSPropertyBorderLeftColor:
|
|
return visitedLink ? visitedLinkBorderLeftColor() : borderLeftColor();
|
|
case CSSPropertyBorderRightColor:
|
|
return visitedLink ? visitedLinkBorderRightColor() : borderRightColor();
|
|
case CSSPropertyBorderTopColor:
|
|
return visitedLink ? visitedLinkBorderTopColor() : borderTopColor();
|
|
case CSSPropertyFill:
|
|
return fillPaintColor();
|
|
case CSSPropertyFloodColor:
|
|
return floodColor();
|
|
case CSSPropertyLightingColor:
|
|
return lightingColor();
|
|
case CSSPropertyOutlineColor:
|
|
return visitedLink ? visitedLinkOutlineColor() : outlineColor();
|
|
case CSSPropertyStopColor:
|
|
return stopColor();
|
|
case CSSPropertyStroke:
|
|
return strokePaintColor();
|
|
case CSSPropertyStrokeColor:
|
|
return visitedLink ? visitedLinkStrokeColor() : strokeColor();
|
|
case CSSPropertyBorderBlockEndColor:
|
|
case CSSPropertyBorderBlockStartColor:
|
|
case CSSPropertyBorderInlineEndColor:
|
|
case CSSPropertyBorderInlineStartColor:
|
|
return unresolvedColorForProperty(CSSProperty::resolveDirectionAwareProperty(colorProperty, direction(), writingMode()));
|
|
case CSSPropertyColumnRuleColor:
|
|
return visitedLink ? visitedLinkColumnRuleColor() : columnRuleColor();
|
|
case CSSPropertyWebkitTextEmphasisColor:
|
|
return visitedLink ? visitedLinkTextEmphasisColor() : textEmphasisColor();
|
|
case CSSPropertyWebkitTextFillColor:
|
|
return visitedLink ? visitedLinkTextFillColor() : textFillColor();
|
|
case CSSPropertyWebkitTextStrokeColor:
|
|
return visitedLink ? visitedLinkTextStrokeColor() : textStrokeColor();
|
|
case CSSPropertyTextDecorationColor:
|
|
return visitedLink ? visitedLinkTextDecorationColor() : textDecorationColor();
|
|
case CSSPropertyCaretColor:
|
|
return visitedLink ? visitedLinkCaretColor() : caretColor();
|
|
default:
|
|
ASSERT_NOT_REACHED();
|
|
break;
|
|
}
|
|
|
|
return { };
|
|
}
|
|
|
|
Color RenderStyle::colorResolvingCurrentColor(CSSPropertyID colorProperty, bool visitedLink) const
|
|
{
|
|
auto computeBorderStyle = [&] {
|
|
switch (colorProperty) {
|
|
case CSSPropertyBorderLeftColor:
|
|
return borderLeftStyle();
|
|
case CSSPropertyBorderRightColor:
|
|
return borderRightStyle();
|
|
case CSSPropertyBorderTopColor:
|
|
return borderTopStyle();
|
|
case CSSPropertyBorderBottomColor:
|
|
return borderBottomStyle();
|
|
default:
|
|
return BorderStyle::None;
|
|
}
|
|
};
|
|
|
|
auto result = unresolvedColorForProperty(colorProperty, visitedLink);
|
|
|
|
if (isCurrentColor(result)) {
|
|
if (colorProperty == CSSPropertyTextDecorationColor) {
|
|
if (hasPositiveStrokeWidth()) {
|
|
// Prefer stroke color if possible but not if it's fully transparent.
|
|
auto strokeColor = colorResolvingCurrentColor(effectiveStrokeColorProperty(), visitedLink);
|
|
if (strokeColor.isVisible())
|
|
return strokeColor;
|
|
}
|
|
|
|
return colorResolvingCurrentColor(CSSPropertyWebkitTextFillColor, visitedLink);
|
|
}
|
|
|
|
auto borderStyle = computeBorderStyle();
|
|
if (!visitedLink && (borderStyle == BorderStyle::Inset || borderStyle == BorderStyle::Outset || borderStyle == BorderStyle::Ridge || borderStyle == BorderStyle::Groove))
|
|
return SRGBA<uint8_t> { 238, 238, 238 };
|
|
|
|
return visitedLink ? visitedLinkColor() : color();
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
Color RenderStyle::colorResolvingCurrentColor(const Color& color) const
|
|
{
|
|
if (isCurrentColor(color))
|
|
return this->color();
|
|
|
|
return color;
|
|
}
|
|
|
|
Color RenderStyle::visitedDependentColor(CSSPropertyID colorProperty) const
|
|
{
|
|
Color unvisitedColor = colorResolvingCurrentColor(colorProperty, false);
|
|
if (insideLink() != InsideLink::InsideVisited)
|
|
return unvisitedColor;
|
|
|
|
#if ENABLE(CSS_COMPOSITING)
|
|
if (isInSubtreeWithBlendMode())
|
|
return unvisitedColor;
|
|
#endif
|
|
|
|
Color visitedColor = colorResolvingCurrentColor(colorProperty, true);
|
|
|
|
// FIXME: Technically someone could explicitly specify the color transparent, but for now we'll just
|
|
// assume that if the background color is transparent that it wasn't set. Note that it's weird that
|
|
// we're returning unvisited info for a visited link, but given our restriction that the alpha values
|
|
// have to match, it makes more sense to return the unvisited background color if specified than it
|
|
// does to return black. This behavior matches what Firefox 4 does as well.
|
|
if (colorProperty == CSSPropertyBackgroundColor && visitedColor == Color::transparentBlack)
|
|
return unvisitedColor;
|
|
|
|
// Take the alpha from the unvisited color, but get the RGB values from the visited color.
|
|
return visitedColor.colorWithAlpha(unvisitedColor.alphaAsFloat());
|
|
}
|
|
|
|
Color RenderStyle::visitedDependentColorWithColorFilter(CSSPropertyID colorProperty) const
|
|
{
|
|
if (!hasAppleColorFilter())
|
|
return visitedDependentColor(colorProperty);
|
|
|
|
return colorByApplyingColorFilter(visitedDependentColor(colorProperty));
|
|
}
|
|
|
|
Color RenderStyle::colorByApplyingColorFilter(const Color& color) const
|
|
{
|
|
Color transformedColor = color;
|
|
appleColorFilter().transformColor(transformedColor);
|
|
return transformedColor;
|
|
}
|
|
|
|
const BorderValue& RenderStyle::borderBefore() const
|
|
{
|
|
switch (writingMode()) {
|
|
case WritingMode::TopToBottom:
|
|
return borderTop();
|
|
case WritingMode::BottomToTop:
|
|
return borderBottom();
|
|
case WritingMode::LeftToRight:
|
|
return borderLeft();
|
|
case WritingMode::RightToLeft:
|
|
return borderRight();
|
|
}
|
|
ASSERT_NOT_REACHED();
|
|
return borderTop();
|
|
}
|
|
|
|
const BorderValue& RenderStyle::borderAfter() const
|
|
{
|
|
switch (writingMode()) {
|
|
case WritingMode::TopToBottom:
|
|
return borderBottom();
|
|
case WritingMode::BottomToTop:
|
|
return borderTop();
|
|
case WritingMode::LeftToRight:
|
|
return borderRight();
|
|
case WritingMode::RightToLeft:
|
|
return borderLeft();
|
|
}
|
|
ASSERT_NOT_REACHED();
|
|
return borderBottom();
|
|
}
|
|
|
|
const BorderValue& RenderStyle::borderStart() const
|
|
{
|
|
if (isHorizontalWritingMode())
|
|
return isLeftToRightDirection() ? borderLeft() : borderRight();
|
|
return isLeftToRightDirection() ? borderTop() : borderBottom();
|
|
}
|
|
|
|
const BorderValue& RenderStyle::borderEnd() const
|
|
{
|
|
if (isHorizontalWritingMode())
|
|
return isLeftToRightDirection() ? borderRight() : borderLeft();
|
|
return isLeftToRightDirection() ? borderBottom() : borderTop();
|
|
}
|
|
|
|
float RenderStyle::borderBeforeWidth() const
|
|
{
|
|
switch (writingMode()) {
|
|
case WritingMode::TopToBottom:
|
|
return borderTopWidth();
|
|
case WritingMode::BottomToTop:
|
|
return borderBottomWidth();
|
|
case WritingMode::LeftToRight:
|
|
return borderLeftWidth();
|
|
case WritingMode::RightToLeft:
|
|
return borderRightWidth();
|
|
}
|
|
ASSERT_NOT_REACHED();
|
|
return borderTopWidth();
|
|
}
|
|
|
|
float RenderStyle::borderAfterWidth() const
|
|
{
|
|
switch (writingMode()) {
|
|
case WritingMode::TopToBottom:
|
|
return borderBottomWidth();
|
|
case WritingMode::BottomToTop:
|
|
return borderTopWidth();
|
|
case WritingMode::LeftToRight:
|
|
return borderRightWidth();
|
|
case WritingMode::RightToLeft:
|
|
return borderLeftWidth();
|
|
}
|
|
ASSERT_NOT_REACHED();
|
|
return borderBottomWidth();
|
|
}
|
|
|
|
float RenderStyle::borderStartWidth() const
|
|
{
|
|
if (isHorizontalWritingMode())
|
|
return isLeftToRightDirection() ? borderLeftWidth() : borderRightWidth();
|
|
return isLeftToRightDirection() ? borderTopWidth() : borderBottomWidth();
|
|
}
|
|
|
|
float RenderStyle::borderEndWidth() const
|
|
{
|
|
if (isHorizontalWritingMode())
|
|
return isLeftToRightDirection() ? borderRightWidth() : borderLeftWidth();
|
|
return isLeftToRightDirection() ? borderBottomWidth() : borderTopWidth();
|
|
}
|
|
|
|
void RenderStyle::setMarginStart(Length&& margin)
|
|
{
|
|
if (isHorizontalWritingMode()) {
|
|
if (isLeftToRightDirection())
|
|
setMarginLeft(WTFMove(margin));
|
|
else
|
|
setMarginRight(WTFMove(margin));
|
|
} else {
|
|
if (isLeftToRightDirection())
|
|
setMarginTop(WTFMove(margin));
|
|
else
|
|
setMarginBottom(WTFMove(margin));
|
|
}
|
|
}
|
|
|
|
void RenderStyle::setMarginEnd(Length&& margin)
|
|
{
|
|
if (isHorizontalWritingMode()) {
|
|
if (isLeftToRightDirection())
|
|
setMarginRight(WTFMove(margin));
|
|
else
|
|
setMarginLeft(WTFMove(margin));
|
|
} else {
|
|
if (isLeftToRightDirection())
|
|
setMarginBottom(WTFMove(margin));
|
|
else
|
|
setMarginTop(WTFMove(margin));
|
|
}
|
|
}
|
|
|
|
TextEmphasisMark RenderStyle::textEmphasisMark() const
|
|
{
|
|
auto mark = static_cast<TextEmphasisMark>(m_rareInheritedData->textEmphasisMark);
|
|
if (mark != TextEmphasisMark::Auto)
|
|
return mark;
|
|
if (isHorizontalWritingMode())
|
|
return TextEmphasisMark::Dot;
|
|
return TextEmphasisMark::Sesame;
|
|
}
|
|
|
|
#if ENABLE(TOUCH_EVENTS)
|
|
|
|
Color RenderStyle::initialTapHighlightColor()
|
|
{
|
|
return RenderTheme::tapHighlightColor();
|
|
}
|
|
|
|
#endif
|
|
|
|
LayoutBoxExtent RenderStyle::imageOutsets(const NinePieceImage& image) const
|
|
{
|
|
return {
|
|
NinePieceImage::computeOutset(image.outset().top(), LayoutUnit(borderTopWidth())),
|
|
NinePieceImage::computeOutset(image.outset().right(), LayoutUnit(borderRightWidth())),
|
|
NinePieceImage::computeOutset(image.outset().bottom(), LayoutUnit(borderBottomWidth())),
|
|
NinePieceImage::computeOutset(image.outset().left(), LayoutUnit(borderLeftWidth()))
|
|
};
|
|
}
|
|
|
|
std::pair<FontOrientation, NonCJKGlyphOrientation> RenderStyle::fontAndGlyphOrientation()
|
|
{
|
|
// FIXME: TextOrientationSideways should map to sideways-left in vertical-lr, which is not supported yet.
|
|
|
|
if (isHorizontalWritingMode())
|
|
return { FontOrientation::Horizontal, NonCJKGlyphOrientation::Mixed };
|
|
|
|
switch (textOrientation()) {
|
|
case TextOrientation::Mixed:
|
|
return { FontOrientation::Vertical, NonCJKGlyphOrientation::Mixed };
|
|
case TextOrientation::Upright:
|
|
return { FontOrientation::Vertical, NonCJKGlyphOrientation::Upright };
|
|
case TextOrientation::Sideways:
|
|
return { FontOrientation::Horizontal, NonCJKGlyphOrientation::Mixed };
|
|
default:
|
|
ASSERT_NOT_REACHED();
|
|
return { FontOrientation::Horizontal, NonCJKGlyphOrientation::Mixed };
|
|
}
|
|
}
|
|
|
|
void RenderStyle::setBorderImageSource(RefPtr<StyleImage>&& image)
|
|
{
|
|
if (m_surroundData->border.m_image.image() == image.get())
|
|
return;
|
|
m_surroundData.access().border.m_image.setImage(WTFMove(image));
|
|
}
|
|
|
|
void RenderStyle::setBorderImageSliceFill(bool fill)
|
|
{
|
|
if (m_surroundData->border.m_image.fill() == fill)
|
|
return;
|
|
m_surroundData.access().border.m_image.setFill(fill);
|
|
}
|
|
|
|
void RenderStyle::setBorderImageSlices(LengthBox&& slices)
|
|
{
|
|
if (m_surroundData->border.m_image.imageSlices() == slices)
|
|
return;
|
|
m_surroundData.access().border.m_image.setImageSlices(WTFMove(slices));
|
|
}
|
|
|
|
void RenderStyle::setBorderImageWidth(LengthBox&& slices)
|
|
{
|
|
if (m_surroundData->border.m_image.borderSlices() == slices)
|
|
return;
|
|
m_surroundData.access().border.m_image.setBorderSlices(WTFMove(slices));
|
|
}
|
|
|
|
void RenderStyle::setBorderImageOutset(LengthBox&& outset)
|
|
{
|
|
if (m_surroundData->border.m_image.outset() == outset)
|
|
return;
|
|
m_surroundData.access().border.m_image.setOutset(WTFMove(outset));
|
|
}
|
|
|
|
void RenderStyle::setBorderImageHorizontalRule(NinePieceImageRule rule)
|
|
{
|
|
if (m_surroundData->border.m_image.horizontalRule() == rule)
|
|
return;
|
|
m_surroundData.access().border.m_image.setHorizontalRule(rule);
|
|
}
|
|
|
|
void RenderStyle::setBorderImageVerticalRule(NinePieceImageRule rule)
|
|
{
|
|
if (m_surroundData->border.m_image.verticalRule() == rule)
|
|
return;
|
|
m_surroundData.access().border.m_image.setVerticalRule(rule);
|
|
}
|
|
|
|
void RenderStyle::setColumnStylesFromPaginationMode(const Pagination::Mode& paginationMode)
|
|
{
|
|
if (paginationMode == Pagination::Unpaginated)
|
|
return;
|
|
|
|
setColumnFill(ColumnFill::Auto);
|
|
|
|
switch (paginationMode) {
|
|
case Pagination::LeftToRightPaginated:
|
|
setColumnAxis(ColumnAxis::Horizontal);
|
|
if (isHorizontalWritingMode())
|
|
setColumnProgression(isLeftToRightDirection() ? ColumnProgression::Normal : ColumnProgression::Reverse);
|
|
else
|
|
setColumnProgression(isFlippedBlocksWritingMode() ? ColumnProgression::Reverse : ColumnProgression::Normal);
|
|
break;
|
|
case Pagination::RightToLeftPaginated:
|
|
setColumnAxis(ColumnAxis::Horizontal);
|
|
if (isHorizontalWritingMode())
|
|
setColumnProgression(isLeftToRightDirection() ? ColumnProgression::Reverse : ColumnProgression::Normal);
|
|
else
|
|
setColumnProgression(isFlippedBlocksWritingMode() ? ColumnProgression::Normal : ColumnProgression::Reverse);
|
|
break;
|
|
case Pagination::TopToBottomPaginated:
|
|
setColumnAxis(ColumnAxis::Vertical);
|
|
if (isHorizontalWritingMode())
|
|
setColumnProgression(isFlippedBlocksWritingMode() ? ColumnProgression::Reverse : ColumnProgression::Normal);
|
|
else
|
|
setColumnProgression(isLeftToRightDirection() ? ColumnProgression::Normal : ColumnProgression::Reverse);
|
|
break;
|
|
case Pagination::BottomToTopPaginated:
|
|
setColumnAxis(ColumnAxis::Vertical);
|
|
if (isHorizontalWritingMode())
|
|
setColumnProgression(isFlippedBlocksWritingMode() ? ColumnProgression::Normal : ColumnProgression::Reverse);
|
|
else
|
|
setColumnProgression(isLeftToRightDirection() ? ColumnProgression::Reverse : ColumnProgression::Normal);
|
|
break;
|
|
case Pagination::Unpaginated:
|
|
ASSERT_NOT_REACHED();
|
|
break;
|
|
}
|
|
}
|
|
|
|
void RenderStyle::deduplicateInheritedCustomProperties(const RenderStyle& other)
|
|
{
|
|
auto& properties = const_cast<DataRef<StyleCustomPropertyData>&>(m_rareInheritedData->customProperties);
|
|
auto& otherProperties = other.m_rareInheritedData->customProperties;
|
|
if (properties.ptr() != otherProperties.ptr() && *properties == *otherProperties)
|
|
properties = otherProperties;
|
|
}
|
|
|
|
void RenderStyle::setInheritedCustomPropertyValue(const AtomString& name, Ref<CSSCustomPropertyValue>&& value)
|
|
{
|
|
auto* existingValue = m_rareInheritedData->customProperties->values.get(name);
|
|
if (existingValue && existingValue->equals(value.get()))
|
|
return;
|
|
m_rareInheritedData.access().customProperties.access().setCustomPropertyValue(name, WTFMove(value));
|
|
}
|
|
|
|
void RenderStyle::setNonInheritedCustomPropertyValue(const AtomString& name, Ref<CSSCustomPropertyValue>&& value)
|
|
{
|
|
auto* existingValue = m_rareNonInheritedData->customProperties->values.get(name);
|
|
if (existingValue && existingValue->equals(value.get()))
|
|
return;
|
|
m_rareNonInheritedData.access().customProperties.access().setCustomPropertyValue(name, WTFMove(value));
|
|
}
|
|
|
|
const LengthBox& RenderStyle::scrollMargin() const
|
|
{
|
|
return m_rareNonInheritedData->scrollMargin;
|
|
}
|
|
|
|
const Length& RenderStyle::scrollMarginTop() const
|
|
{
|
|
return scrollMargin().top();
|
|
}
|
|
|
|
const Length& RenderStyle::scrollMarginBottom() const
|
|
{
|
|
return scrollMargin().bottom();
|
|
}
|
|
|
|
const Length& RenderStyle::scrollMarginLeft() const
|
|
{
|
|
return scrollMargin().left();
|
|
}
|
|
|
|
const Length& RenderStyle::scrollMarginRight() const
|
|
{
|
|
return scrollMargin().right();
|
|
}
|
|
|
|
void RenderStyle::setScrollMarginTop(Length&& length)
|
|
{
|
|
SET_VAR(m_rareNonInheritedData, scrollMargin.top(), WTFMove(length));
|
|
}
|
|
|
|
void RenderStyle::setScrollMarginBottom(Length&& length)
|
|
{
|
|
SET_VAR(m_rareNonInheritedData, scrollMargin.bottom(), WTFMove(length));
|
|
}
|
|
|
|
void RenderStyle::setScrollMarginLeft(Length&& length)
|
|
{
|
|
SET_VAR(m_rareNonInheritedData, scrollMargin.left(), WTFMove(length));
|
|
}
|
|
|
|
void RenderStyle::setScrollMarginRight(Length&& length)
|
|
{
|
|
SET_VAR(m_rareNonInheritedData, scrollMargin.right(), WTFMove(length));
|
|
}
|
|
|
|
const LengthBox& RenderStyle::scrollPadding() const
|
|
{
|
|
return m_rareNonInheritedData->scrollPadding;
|
|
}
|
|
|
|
const Length& RenderStyle::scrollPaddingTop() const
|
|
{
|
|
return scrollPadding().top();
|
|
}
|
|
|
|
const Length& RenderStyle::scrollPaddingBottom() const
|
|
{
|
|
return scrollPadding().bottom();
|
|
}
|
|
|
|
const Length& RenderStyle::scrollPaddingLeft() const
|
|
{
|
|
return scrollPadding().left();
|
|
}
|
|
|
|
const Length& RenderStyle::scrollPaddingRight() const
|
|
{
|
|
return scrollPadding().right();
|
|
}
|
|
|
|
void RenderStyle::setScrollPaddingTop(Length&& length)
|
|
{
|
|
SET_VAR(m_rareNonInheritedData, scrollPadding.top(), WTFMove(length));
|
|
}
|
|
|
|
void RenderStyle::setScrollPaddingBottom(Length&& length)
|
|
{
|
|
SET_VAR(m_rareNonInheritedData, scrollPadding.bottom(), WTFMove(length));
|
|
}
|
|
|
|
void RenderStyle::setScrollPaddingLeft(Length&& length)
|
|
{
|
|
SET_VAR(m_rareNonInheritedData, scrollPadding.left(), WTFMove(length));
|
|
}
|
|
|
|
void RenderStyle::setScrollPaddingRight(Length&& length)
|
|
{
|
|
SET_VAR(m_rareNonInheritedData, scrollPadding.right(), WTFMove(length));
|
|
}
|
|
|
|
ScrollSnapType RenderStyle::initialScrollSnapType()
|
|
{
|
|
return { };
|
|
}
|
|
|
|
ScrollSnapAlign RenderStyle::initialScrollSnapAlign()
|
|
{
|
|
return { };
|
|
}
|
|
|
|
ScrollSnapStop RenderStyle::initialScrollSnapStop()
|
|
{
|
|
return ScrollSnapStop::Normal;
|
|
}
|
|
|
|
const ScrollSnapType RenderStyle::scrollSnapType() const
|
|
{
|
|
return m_rareNonInheritedData->scrollSnapType;
|
|
}
|
|
|
|
const ScrollSnapAlign& RenderStyle::scrollSnapAlign() const
|
|
{
|
|
return m_rareNonInheritedData->scrollSnapAlign;
|
|
}
|
|
|
|
ScrollSnapStop RenderStyle::scrollSnapStop() const
|
|
{
|
|
return m_rareNonInheritedData->scrollSnapStop;
|
|
}
|
|
|
|
void RenderStyle::setScrollSnapType(const ScrollSnapType type)
|
|
{
|
|
SET_VAR(m_rareNonInheritedData, scrollSnapType, type);
|
|
}
|
|
|
|
void RenderStyle::setScrollSnapAlign(const ScrollSnapAlign& alignment)
|
|
{
|
|
SET_VAR(m_rareNonInheritedData, scrollSnapAlign, alignment);
|
|
}
|
|
|
|
void RenderStyle::setScrollSnapStop(const ScrollSnapStop stop)
|
|
{
|
|
SET_VAR(m_rareNonInheritedData, scrollSnapStop, stop);
|
|
}
|
|
|
|
bool RenderStyle::hasSnapPosition() const
|
|
{
|
|
const ScrollSnapAlign& alignment = this->scrollSnapAlign();
|
|
return alignment.blockAlign != ScrollSnapAxisAlignType::None || alignment.inlineAlign != ScrollSnapAxisAlignType::None;
|
|
}
|
|
|
|
bool RenderStyle::hasReferenceFilterOnly() const
|
|
{
|
|
if (!hasFilter())
|
|
return false;
|
|
auto& filterOperations = m_rareNonInheritedData->filter->operations;
|
|
return filterOperations.size() == 1 && filterOperations.at(0)->type() == FilterOperation::REFERENCE;
|
|
}
|
|
|
|
float RenderStyle::outlineWidth() const
|
|
{
|
|
if (m_backgroundData->outline.style() == BorderStyle::None)
|
|
return 0;
|
|
if (outlineStyleIsAuto() == OutlineIsAuto::On)
|
|
return std::max(m_backgroundData->outline.width(), RenderTheme::platformFocusRingWidth());
|
|
return m_backgroundData->outline.width();
|
|
}
|
|
|
|
float RenderStyle::outlineOffset() const
|
|
{
|
|
if (outlineStyleIsAuto() == OutlineIsAuto::On)
|
|
return (m_backgroundData->outline.offset() + RenderTheme::platformFocusRingOffset(outlineWidth()));
|
|
return m_backgroundData->outline.offset();
|
|
}
|
|
|
|
bool RenderStyle::shouldPlaceVerticalScrollbarOnLeft() const
|
|
{
|
|
return (!isLeftToRightDirection() && isHorizontalWritingMode()) || writingMode() == WritingMode::RightToLeft;
|
|
}
|
|
|
|
Vector<PaintType, 3> RenderStyle::paintTypesForPaintOrder(PaintOrder order)
|
|
{
|
|
Vector<PaintType, 3> paintOrder;
|
|
switch (order) {
|
|
case PaintOrder::Normal:
|
|
FALLTHROUGH;
|
|
case PaintOrder::Fill:
|
|
paintOrder.append(PaintType::Fill);
|
|
paintOrder.append(PaintType::Stroke);
|
|
paintOrder.append(PaintType::Markers);
|
|
break;
|
|
case PaintOrder::FillMarkers:
|
|
paintOrder.append(PaintType::Fill);
|
|
paintOrder.append(PaintType::Markers);
|
|
paintOrder.append(PaintType::Stroke);
|
|
break;
|
|
case PaintOrder::Stroke:
|
|
paintOrder.append(PaintType::Stroke);
|
|
paintOrder.append(PaintType::Fill);
|
|
paintOrder.append(PaintType::Markers);
|
|
break;
|
|
case PaintOrder::StrokeMarkers:
|
|
paintOrder.append(PaintType::Stroke);
|
|
paintOrder.append(PaintType::Markers);
|
|
paintOrder.append(PaintType::Fill);
|
|
break;
|
|
case PaintOrder::Markers:
|
|
paintOrder.append(PaintType::Markers);
|
|
paintOrder.append(PaintType::Fill);
|
|
paintOrder.append(PaintType::Stroke);
|
|
break;
|
|
case PaintOrder::MarkersStroke:
|
|
paintOrder.append(PaintType::Markers);
|
|
paintOrder.append(PaintType::Stroke);
|
|
paintOrder.append(PaintType::Fill);
|
|
break;
|
|
};
|
|
return paintOrder;
|
|
}
|
|
|
|
float RenderStyle::computedStrokeWidth(const IntSize& viewportSize) const
|
|
{
|
|
// Use the stroke-width and stroke-color value combination only if stroke-color has been explicitly specified.
|
|
// Since there will be no visible stroke when stroke-color is not specified (transparent by default), we fall
|
|
// back to the legacy Webkit text stroke combination in that case.
|
|
if (!hasExplicitlySetStrokeColor())
|
|
return textStrokeWidth();
|
|
|
|
const Length& length = strokeWidth();
|
|
|
|
if (length.isPercent()) {
|
|
// According to the spec, https://drafts.fxtf.org/paint/#stroke-width, the percentage is relative to the scaled viewport size.
|
|
// The scaled viewport size is the geometric mean of the viewport width and height.
|
|
ExceptionOr<float> result = length.value() * (viewportSize.width() + viewportSize.height()) / 200.0f;
|
|
if (result.hasException())
|
|
return 0;
|
|
return result.releaseReturnValue();
|
|
}
|
|
|
|
if (length.isAuto() || !length.isSpecified())
|
|
return 0;
|
|
|
|
return floatValueForLength(length, viewportSize.width());
|
|
}
|
|
|
|
bool RenderStyle::hasPositiveStrokeWidth() const
|
|
{
|
|
if (!hasExplicitlySetStrokeWidth())
|
|
return textStrokeWidth() > 0;
|
|
|
|
return strokeWidth().isPositive();
|
|
}
|
|
|
|
Color RenderStyle::computedStrokeColor() const
|
|
{
|
|
return visitedDependentColor(effectiveStrokeColorProperty());
|
|
}
|
|
|
|
UsedClear RenderStyle::usedClear(const RenderObject& renderer)
|
|
{
|
|
auto computedValue = renderer.style().clear();
|
|
switch (computedValue) {
|
|
case Clear::None:
|
|
return UsedClear::None;
|
|
case Clear::Left:
|
|
return UsedClear::Left;
|
|
case Clear::Right:
|
|
return UsedClear::Right;
|
|
case Clear::Both:
|
|
return UsedClear::Both;
|
|
case Clear::InlineStart:
|
|
case Clear::InlineEnd:
|
|
auto containingBlockDirection = renderer.containingBlock()->style().direction();
|
|
if (containingBlockDirection == TextDirection::RTL)
|
|
return computedValue == Clear::InlineStart ? UsedClear::Right : UsedClear::Left;
|
|
return computedValue == Clear::InlineStart ? UsedClear::Left : UsedClear::Right;
|
|
}
|
|
|
|
RELEASE_ASSERT_NOT_REACHED();
|
|
}
|
|
|
|
UsedFloat RenderStyle::usedFloat(const RenderObject& renderer)
|
|
{
|
|
auto computedValue = renderer.style().floating();
|
|
switch (computedValue) {
|
|
case Float::None:
|
|
return UsedFloat::None;
|
|
case Float::Left:
|
|
return UsedFloat::Left;
|
|
case Float::Right:
|
|
return UsedFloat::Right;
|
|
case Float::InlineStart:
|
|
case Float::InlineEnd:
|
|
auto containingBlockDirection = renderer.containingBlock()->style().direction();
|
|
if (containingBlockDirection == TextDirection::RTL)
|
|
return computedValue == Float::InlineStart ? UsedFloat::Right : UsedFloat::Left;
|
|
return computedValue == Float::InlineStart ? UsedFloat::Left : UsedFloat::Right;
|
|
}
|
|
|
|
RELEASE_ASSERT_NOT_REACHED();
|
|
}
|
|
} // namespace WebCore
|