| /* |
| * Copyright (C) 1999 Antti Koivisto (koivisto@kde.org) |
| * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved. |
| * Copyright (C) 2011 Adobe Systems Incorporated. All rights reserved. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| * |
| */ |
| |
| #include "core/style/ComputedStyle.h" |
| |
| #include "core/css/resolver/StyleResolver.h" |
| #include "core/layout/LayoutTheme.h" |
| #include "core/layout/TextAutosizer.h" |
| #include "core/style/AppliedTextDecoration.h" |
| #include "core/style/BorderEdge.h" |
| #include "core/style/ContentData.h" |
| #include "core/style/DataEquivalency.h" |
| #include "core/style/ComputedStyleConstants.h" |
| #include "core/style/QuotesData.h" |
| #include "core/style/ShadowList.h" |
| #include "core/style/StyleImage.h" |
| #include "core/style/StyleInheritedData.h" |
| #include "core/style/StyleVariableData.h" |
| #include "platform/LengthFunctions.h" |
| #include "platform/RuntimeEnabledFeatures.h" |
| #include "platform/fonts/Font.h" |
| #include "platform/fonts/FontSelector.h" |
| #include "platform/geometry/FloatRoundedRect.h" |
| #include "platform/graphics/GraphicsContext.h" |
| #include "platform/transforms/RotateTransformOperation.h" |
| #include "platform/transforms/ScaleTransformOperation.h" |
| #include "platform/transforms/TranslateTransformOperation.h" |
| #include "wtf/MathExtras.h" |
| |
| #include <algorithm> |
| |
| namespace blink { |
| |
| struct SameSizeAsBorderValue { |
| RGBA32 m_color; |
| unsigned m_width; |
| }; |
| |
| static_assert(sizeof(BorderValue) == sizeof(SameSizeAsBorderValue), "BorderValue should stay small"); |
| |
| struct SameSizeAsComputedStyle : public RefCounted<SameSizeAsComputedStyle> { |
| void* dataRefs[7]; |
| void* ownPtrs[1]; |
| void* dataRefSvgStyle; |
| |
| struct InheritedFlags { |
| unsigned m_bitfields[2]; |
| } inherited_flags; |
| |
| struct NonInheritedFlags { |
| unsigned m_bitfields[3]; |
| } noninherited_flags; |
| }; |
| |
| static_assert(sizeof(ComputedStyle) == sizeof(SameSizeAsComputedStyle), "ComputedStyle should stay small"); |
| |
| PassRefPtr<ComputedStyle> ComputedStyle::create() |
| { |
| return adoptRef(new ComputedStyle()); |
| } |
| |
| PassRefPtr<ComputedStyle> ComputedStyle::createInitialStyle() |
| { |
| return adoptRef(new ComputedStyle(InitialStyle)); |
| } |
| |
| PassRefPtr<ComputedStyle> ComputedStyle::createAnonymousStyleWithDisplay(const ComputedStyle& parentStyle, EDisplay display) |
| { |
| RefPtr<ComputedStyle> newStyle = ComputedStyle::create(); |
| newStyle->inheritFrom(parentStyle); |
| newStyle->inheritUnicodeBidiFrom(parentStyle); |
| newStyle->setDisplay(display); |
| return newStyle; |
| } |
| |
| PassRefPtr<ComputedStyle> ComputedStyle::clone(const ComputedStyle& other) |
| { |
| return adoptRef(new ComputedStyle(other)); |
| } |
| |
| ALWAYS_INLINE ComputedStyle::ComputedStyle() |
| : m_box(initialStyle()->m_box) |
| , visual(initialStyle()->visual) |
| , m_background(initialStyle()->m_background) |
| , surround(initialStyle()->surround) |
| , rareNonInheritedData(initialStyle()->rareNonInheritedData) |
| , rareInheritedData(initialStyle()->rareInheritedData) |
| , inherited(initialStyle()->inherited) |
| , m_svgStyle(initialStyle()->m_svgStyle) |
| { |
| setBitDefaults(); // Would it be faster to copy this from the default style? |
| static_assert((sizeof(InheritedFlags) <= 8), "InheritedFlags should not grow"); |
| static_assert((sizeof(NonInheritedFlags) <= 12), "NonInheritedFlags should not grow"); |
| } |
| |
| ALWAYS_INLINE ComputedStyle::ComputedStyle(InitialStyleTag) |
| { |
| setBitDefaults(); |
| |
| m_box.init(); |
| visual.init(); |
| m_background.init(); |
| surround.init(); |
| rareNonInheritedData.init(); |
| rareNonInheritedData.access()->m_deprecatedFlexibleBox.init(); |
| rareNonInheritedData.access()->m_flexibleBox.init(); |
| rareNonInheritedData.access()->m_multiCol.init(); |
| rareNonInheritedData.access()->m_transform.init(); |
| rareNonInheritedData.access()->m_willChange.init(); |
| rareNonInheritedData.access()->m_filter.init(); |
| rareNonInheritedData.access()->m_backdropFilter.init(); |
| rareNonInheritedData.access()->m_grid.init(); |
| rareNonInheritedData.access()->m_gridItem.init(); |
| rareNonInheritedData.access()->m_scrollSnap.init(); |
| rareInheritedData.init(); |
| inherited.init(); |
| m_svgStyle.init(); |
| } |
| |
| ALWAYS_INLINE ComputedStyle::ComputedStyle(const ComputedStyle& o) |
| : RefCounted<ComputedStyle>() |
| , m_box(o.m_box) |
| , visual(o.visual) |
| , m_background(o.m_background) |
| , surround(o.surround) |
| , rareNonInheritedData(o.rareNonInheritedData) |
| , rareInheritedData(o.rareInheritedData) |
| , inherited(o.inherited) |
| , m_svgStyle(o.m_svgStyle) |
| , inherited_flags(o.inherited_flags) |
| , noninherited_flags(o.noninherited_flags) |
| { |
| } |
| |
| static StyleRecalcChange diffPseudoStyles(const ComputedStyle& oldStyle, const ComputedStyle& newStyle) |
| { |
| // If the pseudoStyles have changed, we want any StyleRecalcChange that is not NoChange |
| // because setStyle will do the right thing with anything else. |
| if (!oldStyle.hasAnyPublicPseudoStyles()) |
| return NoChange; |
| for (PseudoId pseudoId = FIRST_PUBLIC_PSEUDOID; pseudoId < FIRST_INTERNAL_PSEUDOID; pseudoId = static_cast<PseudoId>(pseudoId + 1)) { |
| if (!oldStyle.hasPseudoStyle(pseudoId)) |
| continue; |
| const ComputedStyle* newPseudoStyle = newStyle.getCachedPseudoStyle(pseudoId); |
| if (!newPseudoStyle) |
| return NoInherit; |
| const ComputedStyle* oldPseudoStyle = oldStyle.getCachedPseudoStyle(pseudoId); |
| if (oldPseudoStyle && *oldPseudoStyle != *newPseudoStyle) |
| return NoInherit; |
| } |
| return NoChange; |
| } |
| |
| StyleRecalcChange ComputedStyle::stylePropagationDiff(const ComputedStyle* oldStyle, const ComputedStyle* newStyle) |
| { |
| if ((!oldStyle && newStyle) || (oldStyle && !newStyle)) |
| return Reattach; |
| |
| if (!oldStyle && !newStyle) |
| return NoChange; |
| |
| if (oldStyle->display() != newStyle->display() |
| || oldStyle->hasPseudoStyle(FIRST_LETTER) != newStyle->hasPseudoStyle(FIRST_LETTER) |
| || !oldStyle->contentDataEquivalent(newStyle) |
| || oldStyle->hasTextCombine() != newStyle->hasTextCombine() |
| || oldStyle->justifyItems() != newStyle->justifyItems()) // TODO (lajava): We must avoid this Reattach. |
| return Reattach; |
| |
| if (oldStyle->inheritedNotEqual(*newStyle)) |
| return Inherit; |
| |
| if (*oldStyle == *newStyle) |
| return diffPseudoStyles(*oldStyle, *newStyle); |
| |
| if (oldStyle->hasExplicitlyInheritedProperties()) |
| return Inherit; |
| |
| return NoInherit; |
| } |
| |
| ItemPosition ComputedStyle::resolveAlignment(const ComputedStyle& parentStyle, const ComputedStyle& childStyle, ItemPosition resolvedAutoPositionForLayoutObject) |
| { |
| // The auto keyword computes to the parent's align-items computed value, or to "stretch", if not set or "auto". |
| if (childStyle.alignSelfPosition() == ItemPositionAuto) |
| return (parentStyle.alignItemsPosition() == ItemPositionAuto) ? resolvedAutoPositionForLayoutObject : parentStyle.alignItemsPosition(); |
| return childStyle.alignSelfPosition(); |
| } |
| |
| const StyleSelfAlignmentData ComputedStyle::resolvedAlignment(const ComputedStyle& parentStyle, ItemPosition resolvedAutoPositionForLayoutObject) const |
| { |
| // The auto keyword computes to the parent's align-items computed value, or to "stretch", if not set or "auto". |
| if (alignSelfPosition() == ItemPositionAuto) { |
| if (parentStyle.alignItemsPosition() == ItemPositionAuto) |
| return {resolvedAutoPositionForLayoutObject, OverflowAlignmentDefault}; |
| return parentStyle.alignItems(); |
| } |
| return alignSelf(); |
| } |
| |
| ItemPosition ComputedStyle::resolveJustification(const ComputedStyle& parentStyle, const ComputedStyle& childStyle, ItemPosition resolvedAutoPositionForLayoutObject) |
| { |
| if (childStyle.justifySelfPosition() == ItemPositionAuto) |
| return (parentStyle.justifyItemsPosition() == ItemPositionAuto) ? resolvedAutoPositionForLayoutObject : parentStyle.justifyItemsPosition(); |
| return childStyle.justifySelfPosition(); |
| } |
| |
| static inline ContentPosition resolvedContentAlignmentPosition(const StyleContentAlignmentData& value, const StyleContentAlignmentData& normalValueBehavior) |
| { |
| return (value.position() == ContentPositionNormal && value.distribution() == ContentDistributionDefault) ? normalValueBehavior.position() : value.position(); |
| } |
| |
| static inline ContentDistributionType resolvedContentAlignmentDistribution(const StyleContentAlignmentData& value, const StyleContentAlignmentData& normalValueBehavior) |
| { |
| return (value.position() == ContentPositionNormal && value.distribution() == ContentDistributionDefault) ? normalValueBehavior.distribution() : value.distribution(); |
| } |
| |
| ContentPosition ComputedStyle::resolvedJustifyContentPosition(const StyleContentAlignmentData& normalValueBehavior) const |
| { |
| return resolvedContentAlignmentPosition(justifyContent(), normalValueBehavior); |
| } |
| |
| ContentDistributionType ComputedStyle::resolvedJustifyContentDistribution(const StyleContentAlignmentData& normalValueBehavior) const |
| { |
| return resolvedContentAlignmentDistribution(justifyContent(), normalValueBehavior); |
| } |
| |
| ContentPosition ComputedStyle::resolvedAlignContentPosition(const StyleContentAlignmentData& normalValueBehavior) const |
| { |
| return resolvedContentAlignmentPosition(alignContent(), normalValueBehavior); |
| } |
| |
| ContentDistributionType ComputedStyle::resolvedAlignContentDistribution(const StyleContentAlignmentData& normalValueBehavior) const |
| { |
| return resolvedContentAlignmentDistribution(alignContent(), normalValueBehavior); |
| } |
| |
| void ComputedStyle::inheritFrom(const ComputedStyle& inheritParent, IsAtShadowBoundary isAtShadowBoundary) |
| { |
| if (isAtShadowBoundary == AtShadowBoundary) { |
| // Even if surrounding content is user-editable, shadow DOM should act as a single unit, and not necessarily be editable |
| EUserModify currentUserModify = userModify(); |
| rareInheritedData = inheritParent.rareInheritedData; |
| setUserModify(currentUserModify); |
| } else { |
| rareInheritedData = inheritParent.rareInheritedData; |
| } |
| inherited = inheritParent.inherited; |
| inherited_flags = inheritParent.inherited_flags; |
| if (m_svgStyle != inheritParent.m_svgStyle) |
| m_svgStyle.access()->inheritFrom(inheritParent.m_svgStyle.get()); |
| } |
| |
| void ComputedStyle::copyNonInheritedFromCached(const ComputedStyle& other) |
| { |
| m_box = other.m_box; |
| visual = other.visual; |
| m_background = other.m_background; |
| surround = other.surround; |
| rareNonInheritedData = other.rareNonInheritedData; |
| |
| // The flags are copied one-by-one because noninherited_flags contains a bunch of stuff other than real style data. |
| // See comments for each skipped flag below. |
| noninherited_flags.effectiveDisplay = other.noninherited_flags.effectiveDisplay; |
| noninherited_flags.originalDisplay = other.noninherited_flags.originalDisplay; |
| noninherited_flags.overflowX = other.noninherited_flags.overflowX; |
| noninherited_flags.overflowY = other.noninherited_flags.overflowY; |
| noninherited_flags.verticalAlign = other.noninherited_flags.verticalAlign; |
| noninherited_flags.clear = other.noninherited_flags.clear; |
| noninherited_flags.position = other.noninherited_flags.position; |
| noninherited_flags.floating = other.noninherited_flags.floating; |
| noninherited_flags.tableLayout = other.noninherited_flags.tableLayout; |
| noninherited_flags.unicodeBidi = other.noninherited_flags.unicodeBidi; |
| noninherited_flags.hasViewportUnits = other.noninherited_flags.hasViewportUnits; |
| noninherited_flags.breakBefore = other.noninherited_flags.breakBefore; |
| noninherited_flags.breakAfter = other.noninherited_flags.breakAfter; |
| noninherited_flags.breakInside = other.noninherited_flags.breakInside; |
| noninherited_flags.hasRemUnits = other.noninherited_flags.hasRemUnits; |
| |
| // Correctly set during selector matching: |
| // noninherited_flags.styleType |
| // noninherited_flags.pseudoBits |
| |
| // Set correctly while computing style for children: |
| // noninherited_flags.explicitInheritance |
| |
| // unique() styles are not cacheable. |
| ASSERT(!other.noninherited_flags.unique); |
| |
| // styles with non inherited properties that reference variables are not |
| // cacheable. |
| ASSERT(!other.noninherited_flags.variableReference); |
| |
| // The following flags are set during matching before we decide that we get a |
| // match in the MatchedPropertiesCache which in turn calls this method. The |
| // reason why we don't copy these flags is that they're already correctly set |
| // and that they may differ between elements which have the same set of matched |
| // properties. For instance, given the rule: |
| // |
| // :-webkit-any(:hover, :focus) { background-color: green }" |
| // |
| // A hovered element, and a focused element may use the same cached matched |
| // properties here, but the affectedBy flags will be set differently based on |
| // the matching order of the :-webkit-any components. |
| // |
| // noninherited_flags.emptyState |
| // noninherited_flags.affectedByFocus |
| // noninherited_flags.affectedByHover |
| // noninherited_flags.affectedByActive |
| // noninherited_flags.affectedByDrag |
| // noninherited_flags.isLink |
| |
| if (m_svgStyle != other.m_svgStyle) |
| m_svgStyle.access()->copyNonInheritedFromCached(other.m_svgStyle.get()); |
| ASSERT(zoom() == initialZoom()); |
| } |
| |
| bool ComputedStyle::operator==(const ComputedStyle& o) const |
| { |
| // compare everything except the pseudoStyle pointer |
| return inherited_flags == o.inherited_flags |
| && noninherited_flags == o.noninherited_flags |
| && m_box == o.m_box |
| && visual == o.visual |
| && m_background == o.m_background |
| && surround == o.surround |
| && rareNonInheritedData == o.rareNonInheritedData |
| && rareInheritedData == o.rareInheritedData |
| && inherited == o.inherited |
| && m_svgStyle == o.m_svgStyle; |
| } |
| |
| bool ComputedStyle::isStyleAvailable() const |
| { |
| return this != StyleResolver::styleNotYetAvailable(); |
| } |
| |
| bool ComputedStyle::hasUniquePseudoStyle() const |
| { |
| if (!m_cachedPseudoStyles || styleType() != NOPSEUDO) |
| return false; |
| |
| for (size_t i = 0; i < m_cachedPseudoStyles->size(); ++i) { |
| const ComputedStyle& pseudoStyle = *m_cachedPseudoStyles->at(i); |
| if (pseudoStyle.unique()) |
| return true; |
| } |
| |
| return false; |
| } |
| |
| ComputedStyle* ComputedStyle::getCachedPseudoStyle(PseudoId pid) const |
| { |
| if (!m_cachedPseudoStyles || !m_cachedPseudoStyles->size()) |
| return 0; |
| |
| if (styleType() != NOPSEUDO) |
| return 0; |
| |
| for (size_t i = 0; i < m_cachedPseudoStyles->size(); ++i) { |
| ComputedStyle* pseudoStyle = m_cachedPseudoStyles->at(i).get(); |
| if (pseudoStyle->styleType() == pid) |
| return pseudoStyle; |
| } |
| |
| return 0; |
| } |
| |
| ComputedStyle* ComputedStyle::addCachedPseudoStyle(PassRefPtr<ComputedStyle> pseudo) |
| { |
| if (!pseudo) |
| return 0; |
| |
| ASSERT(pseudo->styleType() > NOPSEUDO); |
| |
| ComputedStyle* result = pseudo.get(); |
| |
| if (!m_cachedPseudoStyles) |
| m_cachedPseudoStyles = adoptPtr(new PseudoStyleCache); |
| |
| m_cachedPseudoStyles->append(pseudo); |
| |
| return result; |
| } |
| |
| void ComputedStyle::removeCachedPseudoStyle(PseudoId pid) |
| { |
| if (!m_cachedPseudoStyles) |
| return; |
| for (size_t i = 0; i < m_cachedPseudoStyles->size(); ++i) { |
| ComputedStyle* pseudoStyle = m_cachedPseudoStyles->at(i).get(); |
| if (pseudoStyle->styleType() == pid) { |
| m_cachedPseudoStyles->remove(i); |
| return; |
| } |
| } |
| } |
| |
| bool ComputedStyle::inheritedNotEqual(const ComputedStyle& other) const |
| { |
| return inherited_flags != other.inherited_flags |
| || inherited != other.inherited |
| || font().loadingCustomFonts() != other.font().loadingCustomFonts() |
| || m_svgStyle->inheritedNotEqual(other.m_svgStyle.get()) |
| || rareInheritedData != other.rareInheritedData; |
| } |
| |
| bool ComputedStyle::inheritedDataShared(const ComputedStyle& other) const |
| { |
| // This is a fast check that only looks if the data structures are shared. |
| return inherited_flags == other.inherited_flags |
| && inherited.get() == other.inherited.get() |
| && m_svgStyle.get() == other.m_svgStyle.get() |
| && rareInheritedData.get() == other.rareInheritedData.get(); |
| } |
| |
| static bool dependenceOnContentHeightHasChanged(const ComputedStyle& a, const ComputedStyle& b) |
| { |
| // If top or bottom become auto/non-auto then it means we either have to solve height based |
| // on the content or stop doing so (http://www.w3.org/TR/CSS2/visudet.html#abs-non-replaced-height) |
| // - either way requires a layout. |
| return a.logicalTop().isAuto() != b.logicalTop().isAuto() || a.logicalBottom().isAuto() != b.logicalBottom().isAuto(); |
| } |
| |
| StyleDifference ComputedStyle::visualInvalidationDiff(const ComputedStyle& other) const |
| { |
| // Note, we use .get() on each DataRef below because DataRef::operator== will do a deep |
| // compare, which is duplicate work when we're going to compare each property inside |
| // this function anyway. |
| |
| StyleDifference diff; |
| if (m_svgStyle.get() != other.m_svgStyle.get()) |
| diff = m_svgStyle->diff(other.m_svgStyle.get()); |
| |
| if ((!diff.needsFullLayout() || !diff.needsPaintInvalidation()) && diffNeedsFullLayoutAndPaintInvalidation(other)) { |
| diff.setNeedsFullLayout(); |
| diff.setNeedsPaintInvalidationObject(); |
| } |
| |
| if (!diff.needsFullLayout() && diffNeedsFullLayout(other)) |
| diff.setNeedsFullLayout(); |
| |
| if (!diff.needsFullLayout() && surround->margin != other.surround->margin) { |
| // Relative-positioned elements collapse their margins so need a full layout. |
| if (hasOutOfFlowPosition()) |
| diff.setNeedsPositionedMovementLayout(); |
| else |
| diff.setNeedsFullLayout(); |
| } |
| |
| if (!diff.needsFullLayout() && position() != StaticPosition && surround->offset != other.surround->offset) { |
| // Optimize for the case where a positioned layer is moving but not changing size. |
| if (dependenceOnContentHeightHasChanged(*this, other)) |
| diff.setNeedsFullLayout(); |
| else |
| diff.setNeedsPositionedMovementLayout(); |
| } |
| |
| if (diffNeedsPaintInvalidationLayer(other)) |
| diff.setNeedsPaintInvalidationLayer(); |
| else if (diffNeedsPaintInvalidationObject(other)) |
| diff.setNeedsPaintInvalidationObject(); |
| |
| updatePropertySpecificDifferences(other, diff); |
| |
| // Cursors are not checked, since they will be set appropriately in response to mouse events, |
| // so they don't need to cause any paint invalidation or layout. |
| |
| // Animations don't need to be checked either. We always set the new style on the layoutObject, so we will get a chance to fire off |
| // the resulting transition properly. |
| |
| return diff; |
| } |
| |
| bool ComputedStyle::diffNeedsFullLayoutAndPaintInvalidation(const ComputedStyle& other) const |
| { |
| // FIXME: Not all cases in this method need both full layout and paint invalidation. |
| // Should move cases into diffNeedsFullLayout() if |
| // - don't need paint invalidation at all; |
| // - or the layoutObject knows how to exactly invalidate paints caused by the layout change |
| // instead of forced full paint invalidation. |
| |
| if (surround.get() != other.surround.get()) { |
| // If our border widths change, then we need to layout. Other changes to borders only necessitate a paint invalidation. |
| if (borderLeftWidth() != other.borderLeftWidth() |
| || borderTopWidth() != other.borderTopWidth() |
| || borderBottomWidth() != other.borderBottomWidth() |
| || borderRightWidth() != other.borderRightWidth()) |
| return true; |
| } |
| |
| if (rareNonInheritedData.get() != other.rareNonInheritedData.get()) { |
| if (rareNonInheritedData->m_appearance != other.rareNonInheritedData->m_appearance |
| || rareNonInheritedData->marginBeforeCollapse != other.rareNonInheritedData->marginBeforeCollapse |
| || rareNonInheritedData->marginAfterCollapse != other.rareNonInheritedData->marginAfterCollapse |
| || rareNonInheritedData->lineClamp != other.rareNonInheritedData->lineClamp |
| || rareNonInheritedData->textOverflow != other.rareNonInheritedData->textOverflow |
| || rareNonInheritedData->m_wrapFlow != other.rareNonInheritedData->m_wrapFlow |
| || rareNonInheritedData->m_wrapThrough != other.rareNonInheritedData->m_wrapThrough |
| || rareNonInheritedData->m_shapeMargin != other.rareNonInheritedData->m_shapeMargin |
| || rareNonInheritedData->m_order != other.rareNonInheritedData->m_order |
| || rareNonInheritedData->m_grid.get() != other.rareNonInheritedData->m_grid.get() |
| || rareNonInheritedData->m_gridItem.get() != other.rareNonInheritedData->m_gridItem.get() |
| || rareNonInheritedData->hasFilters() != other.rareNonInheritedData->hasFilters()) |
| return true; |
| |
| if (rareNonInheritedData->m_deprecatedFlexibleBox.get() != other.rareNonInheritedData->m_deprecatedFlexibleBox.get() |
| && *rareNonInheritedData->m_deprecatedFlexibleBox.get() != *other.rareNonInheritedData->m_deprecatedFlexibleBox.get()) |
| return true; |
| |
| if (rareNonInheritedData->m_flexibleBox.get() != other.rareNonInheritedData->m_flexibleBox.get() |
| && *rareNonInheritedData->m_flexibleBox.get() != *other.rareNonInheritedData->m_flexibleBox.get()) |
| return true; |
| |
| // FIXME: We should add an optimized form of layout that just recomputes visual overflow. |
| if (!rareNonInheritedData->shadowDataEquivalent(*other.rareNonInheritedData.get())) |
| return true; |
| |
| if (!rareNonInheritedData->reflectionDataEquivalent(*other.rareNonInheritedData.get())) |
| return true; |
| |
| if (rareNonInheritedData->m_multiCol.get() != other.rareNonInheritedData->m_multiCol.get() |
| && *rareNonInheritedData->m_multiCol.get() != *other.rareNonInheritedData->m_multiCol.get()) |
| return true; |
| |
| // If the counter directives change, trigger a relayout to re-calculate counter values and rebuild the counter node tree. |
| const CounterDirectiveMap* mapA = rareNonInheritedData->m_counterDirectives.get(); |
| const CounterDirectiveMap* mapB = other.rareNonInheritedData->m_counterDirectives.get(); |
| if (!(mapA == mapB || (mapA && mapB && *mapA == *mapB))) |
| return true; |
| |
| // We only need do layout for opacity changes if adding or losing opacity could trigger a change |
| // in us being a stacking context. |
| if (hasAutoZIndex() != other.hasAutoZIndex() && rareNonInheritedData->hasOpacity() != other.rareNonInheritedData->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 LayoutInlines (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 (rareInheritedData.get() != other.rareInheritedData.get()) { |
| if (rareInheritedData->highlight != other.rareInheritedData->highlight |
| || rareInheritedData->indent != other.rareInheritedData->indent |
| || rareInheritedData->m_textAlignLast != other.rareInheritedData->m_textAlignLast |
| || rareInheritedData->m_textIndentLine != other.rareInheritedData->m_textIndentLine |
| || rareInheritedData->m_effectiveZoom != other.rareInheritedData->m_effectiveZoom |
| || rareInheritedData->wordBreak != other.rareInheritedData->wordBreak |
| || rareInheritedData->overflowWrap != other.rareInheritedData->overflowWrap |
| || rareInheritedData->lineBreak != other.rareInheritedData->lineBreak |
| || rareInheritedData->textSecurity != other.rareInheritedData->textSecurity |
| || rareInheritedData->hyphens != other.rareInheritedData->hyphens |
| || rareInheritedData->hyphenationLimitBefore != other.rareInheritedData->hyphenationLimitBefore |
| || rareInheritedData->hyphenationLimitAfter != other.rareInheritedData->hyphenationLimitAfter |
| || rareInheritedData->hyphenationString != other.rareInheritedData->hyphenationString |
| || rareInheritedData->m_respectImageOrientation != other.rareInheritedData->m_respectImageOrientation |
| || rareInheritedData->m_rubyPosition != other.rareInheritedData->m_rubyPosition |
| || rareInheritedData->textEmphasisMark != other.rareInheritedData->textEmphasisMark |
| || rareInheritedData->textEmphasisPosition != other.rareInheritedData->textEmphasisPosition |
| || rareInheritedData->textEmphasisCustomMark != other.rareInheritedData->textEmphasisCustomMark |
| || rareInheritedData->m_textJustify != other.rareInheritedData->m_textJustify |
| || rareInheritedData->m_textOrientation != other.rareInheritedData->m_textOrientation |
| || rareInheritedData->m_textCombine != other.rareInheritedData->m_textCombine |
| || rareInheritedData->m_tabSize != other.rareInheritedData->m_tabSize |
| || rareInheritedData->listStyleImage != other.rareInheritedData->listStyleImage |
| || rareInheritedData->textStrokeWidth != other.rareInheritedData->textStrokeWidth) |
| return true; |
| |
| if (!rareInheritedData->shadowDataEquivalent(*other.rareInheritedData.get())) |
| return true; |
| |
| if (!rareInheritedData->quotesDataEquivalent(*other.rareInheritedData.get())) |
| return true; |
| } |
| |
| if (inherited->textAutosizingMultiplier != other.inherited->textAutosizingMultiplier) |
| return true; |
| |
| if (inherited->font.loadingCustomFonts() != other.inherited->font.loadingCustomFonts()) |
| return true; |
| |
| if (inherited.get() != other.inherited.get()) { |
| if (inherited->line_height != other.inherited->line_height |
| || inherited->font != other.inherited->font |
| || inherited->horizontal_border_spacing != other.inherited->horizontal_border_spacing |
| || inherited->vertical_border_spacing != other.inherited->vertical_border_spacing) |
| return true; |
| } |
| |
| if (inherited_flags._box_direction != other.inherited_flags._box_direction |
| || inherited_flags.m_rtlOrdering != other.inherited_flags.m_rtlOrdering |
| || inherited_flags._text_align != other.inherited_flags._text_align |
| || inherited_flags._text_transform != other.inherited_flags._text_transform |
| || inherited_flags._direction != other.inherited_flags._direction |
| || inherited_flags._white_space != other.inherited_flags._white_space |
| || inherited_flags.m_writingMode != other.inherited_flags.m_writingMode) |
| return true; |
| |
| if (noninherited_flags.overflowX != other.noninherited_flags.overflowX |
| || noninherited_flags.overflowY != other.noninherited_flags.overflowY |
| || noninherited_flags.clear != other.noninherited_flags.clear |
| || noninherited_flags.unicodeBidi != other.noninherited_flags.unicodeBidi |
| || noninherited_flags.floating != other.noninherited_flags.floating |
| || noninherited_flags.originalDisplay != other.noninherited_flags.originalDisplay) |
| return true; |
| |
| if (noninherited_flags.effectiveDisplay >= FIRST_TABLE_DISPLAY && noninherited_flags.effectiveDisplay <= LAST_TABLE_DISPLAY) { |
| if (inherited_flags._border_collapse != other.inherited_flags._border_collapse |
| || inherited_flags._empty_cells != other.inherited_flags._empty_cells |
| || inherited_flags._caption_side != other.inherited_flags._caption_side |
| || noninherited_flags.tableLayout != other.noninherited_flags.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 (inherited_flags._border_collapse |
| && ((borderTopStyle() == BHIDDEN && other.borderTopStyle() == BNONE) |
| || (borderTopStyle() == BNONE && other.borderTopStyle() == BHIDDEN) |
| || (borderBottomStyle() == BHIDDEN && other.borderBottomStyle() == BNONE) |
| || (borderBottomStyle() == BNONE && other.borderBottomStyle() == BHIDDEN) |
| || (borderLeftStyle() == BHIDDEN && other.borderLeftStyle() == BNONE) |
| || (borderLeftStyle() == BNONE && other.borderLeftStyle() == BHIDDEN) |
| || (borderRightStyle() == BHIDDEN && other.borderRightStyle() == BNONE) |
| || (borderRightStyle() == BNONE && other.borderRightStyle() == BHIDDEN))) |
| return true; |
| } else if (noninherited_flags.effectiveDisplay == LIST_ITEM) { |
| if (inherited_flags._list_style_type != other.inherited_flags._list_style_type |
| || inherited_flags._list_style_position != other.inherited_flags._list_style_position) |
| return true; |
| } |
| |
| if ((visibility() == COLLAPSE) != (other.visibility() == COLLAPSE)) |
| return true; |
| |
| if (!m_background->outline().visuallyEqual(other.m_background->outline())) { |
| // FIXME: We only really need to recompute the overflow but we don't have an optimized layout for it. |
| return true; |
| } |
| |
| if (hasPseudoStyle(SCROLLBAR) != other.hasPseudoStyle(SCROLLBAR)) |
| return true; |
| |
| // Movement of non-static-positioned object is special cased in ComputedStyle::visualInvalidationDiff(). |
| |
| return false; |
| } |
| |
| bool ComputedStyle::diffNeedsFullLayout(const ComputedStyle& other) const |
| { |
| if (m_box.get() != other.m_box.get()) { |
| if (m_box->width() != other.m_box->width() |
| || m_box->minWidth() != other.m_box->minWidth() |
| || m_box->maxWidth() != other.m_box->maxWidth() |
| || m_box->height() != other.m_box->height() |
| || m_box->minHeight() != other.m_box->minHeight() |
| || m_box->maxHeight() != other.m_box->maxHeight()) |
| return true; |
| |
| if (m_box->verticalAlign() != other.m_box->verticalAlign()) |
| return true; |
| |
| if (m_box->boxSizing() != other.m_box->boxSizing()) |
| return true; |
| } |
| |
| if (noninherited_flags.verticalAlign != other.noninherited_flags.verticalAlign |
| || noninherited_flags.position != other.noninherited_flags.position) |
| return true; |
| |
| if (surround.get() != other.surround.get()) { |
| if (surround->padding != other.surround->padding) |
| return true; |
| } |
| |
| if (rareNonInheritedData.get() != other.rareNonInheritedData.get()) { |
| if (rareNonInheritedData->m_alignContent != other.rareNonInheritedData->m_alignContent |
| || rareNonInheritedData->m_alignItems != other.rareNonInheritedData->m_alignItems |
| || rareNonInheritedData->m_alignSelf != other.rareNonInheritedData->m_alignSelf |
| || rareNonInheritedData->m_justifyContent != other.rareNonInheritedData->m_justifyContent |
| || rareNonInheritedData->m_justifyItems != other.rareNonInheritedData->m_justifyItems |
| || rareNonInheritedData->m_justifySelf != other.rareNonInheritedData->m_justifySelf) |
| return true; |
| } |
| |
| return false; |
| } |
| |
| bool ComputedStyle::diffNeedsPaintInvalidationLayer(const ComputedStyle& other) const |
| { |
| if (position() != StaticPosition && (visual->clip != other.visual->clip || visual->hasAutoClip != other.visual->hasAutoClip)) |
| return true; |
| |
| if (rareNonInheritedData.get() != other.rareNonInheritedData.get()) { |
| if (RuntimeEnabledFeatures::cssCompositingEnabled() |
| && (rareNonInheritedData->m_effectiveBlendMode != other.rareNonInheritedData->m_effectiveBlendMode |
| || rareNonInheritedData->m_isolation != other.rareNonInheritedData->m_isolation)) |
| return true; |
| |
| if (rareNonInheritedData->m_mask != other.rareNonInheritedData->m_mask |
| || rareNonInheritedData->m_maskBoxImage != other.rareNonInheritedData->m_maskBoxImage) |
| return true; |
| } |
| |
| return false; |
| } |
| |
| bool ComputedStyle::diffNeedsPaintInvalidationObject(const ComputedStyle& other) const |
| { |
| if (inherited_flags._visibility != other.inherited_flags._visibility |
| || inherited_flags.m_printColorAdjust != other.inherited_flags.m_printColorAdjust |
| || inherited_flags._insideLink != other.inherited_flags._insideLink |
| || !surround->border.visuallyEqual(other.surround->border) |
| || !m_background->visuallyEqual(*other.m_background)) |
| return true; |
| |
| if (rareInheritedData.get() != other.rareInheritedData.get()) { |
| if (rareInheritedData->userModify != other.rareInheritedData->userModify |
| || rareInheritedData->userSelect != other.rareInheritedData->userSelect |
| || rareInheritedData->m_imageRendering != other.rareInheritedData->m_imageRendering) |
| return true; |
| } |
| |
| if (rareNonInheritedData.get() != other.rareNonInheritedData.get()) { |
| if (rareNonInheritedData->userDrag != other.rareNonInheritedData->userDrag |
| || rareNonInheritedData->m_objectFit != other.rareNonInheritedData->m_objectFit |
| || rareNonInheritedData->m_objectPosition != other.rareNonInheritedData->m_objectPosition |
| || !rareNonInheritedData->shapeOutsideDataEquivalent(*other.rareNonInheritedData.get()) |
| || !rareNonInheritedData->clipPathDataEquivalent(*other.rareNonInheritedData.get()) |
| || (visitedLinkBorderLeftColor() != other.visitedLinkBorderLeftColor() && borderLeftWidth()) |
| || (visitedLinkBorderRightColor() != other.visitedLinkBorderRightColor() && borderRightWidth()) |
| || (visitedLinkBorderBottomColor() != other.visitedLinkBorderBottomColor() && borderBottomWidth()) |
| || (visitedLinkBorderTopColor() != other.visitedLinkBorderTopColor() && borderTopWidth()) |
| || (visitedLinkOutlineColor() != other.visitedLinkOutlineColor() && outlineWidth()) |
| || (visitedLinkBackgroundColor() != other.visitedLinkBackgroundColor())) |
| return true; |
| } |
| |
| if (resize() != other.resize()) |
| return true; |
| |
| return false; |
| } |
| |
| void ComputedStyle::updatePropertySpecificDifferences(const ComputedStyle& other, StyleDifference& diff) const |
| { |
| // StyleAdjuster has ensured that zIndex is non-auto only if it's applicable. |
| if (m_box->zIndex() != other.m_box->zIndex() || m_box->hasAutoZIndex() != other.m_box->hasAutoZIndex()) |
| diff.setZIndexChanged(); |
| |
| if (rareNonInheritedData.get() != other.rareNonInheritedData.get()) { |
| if (!transformDataEquivalent(other)) |
| diff.setTransformChanged(); |
| |
| if (rareNonInheritedData->opacity != other.rareNonInheritedData->opacity) |
| diff.setOpacityChanged(); |
| |
| if (rareNonInheritedData->m_filter != other.rareNonInheritedData->m_filter) |
| diff.setFilterChanged(); |
| |
| if (rareNonInheritedData->m_backdropFilter != other.rareNonInheritedData->m_backdropFilter) |
| diff.setBackdropFilterChanged(); |
| } |
| |
| if (!diff.needsPaintInvalidation()) { |
| if (inherited->color != other.inherited->color |
| || inherited->visitedLinkColor != other.inherited->visitedLinkColor |
| || inherited_flags.m_textUnderline != other.inherited_flags.m_textUnderline |
| || visual->textDecoration != other.visual->textDecoration) { |
| diff.setTextDecorationOrColorChanged(); |
| } else if (rareNonInheritedData.get() != other.rareNonInheritedData.get() |
| && (rareNonInheritedData->m_textDecorationStyle != other.rareNonInheritedData->m_textDecorationStyle |
| || rareNonInheritedData->m_textDecorationColor != other.rareNonInheritedData->m_textDecorationColor |
| || rareNonInheritedData->m_visitedLinkTextDecorationColor != other.rareNonInheritedData->m_visitedLinkTextDecorationColor)) { |
| diff.setTextDecorationOrColorChanged(); |
| } else if (rareInheritedData.get() != other.rareInheritedData.get() |
| && (rareInheritedData->textFillColor() != other.rareInheritedData->textFillColor() |
| || rareInheritedData->textStrokeColor() != other.rareInheritedData->textStrokeColor() |
| || rareInheritedData->textEmphasisColor() != other.rareInheritedData->textEmphasisColor() |
| || rareInheritedData->visitedLinkTextFillColor() != other.rareInheritedData->visitedLinkTextFillColor() |
| || rareInheritedData->visitedLinkTextStrokeColor() != other.rareInheritedData->visitedLinkTextStrokeColor() |
| || rareInheritedData->visitedLinkTextEmphasisColor() != other.rareInheritedData->visitedLinkTextEmphasisColor() |
| || rareInheritedData->textEmphasisFill != other.rareInheritedData->textEmphasisFill |
| || rareInheritedData->appliedTextDecorations != other.rareInheritedData->appliedTextDecorations)) { |
| diff.setTextDecorationOrColorChanged(); |
| } |
| } |
| } |
| |
| void ComputedStyle::addCursor(PassRefPtrWillBeRawPtr<StyleImage> image, bool hotSpotSpecified, const IntPoint& hotSpot) |
| { |
| if (!rareInheritedData.access()->cursorData) { |
| #if ENABLE(OILPAN) |
| rareInheritedData.access()->cursorData = new CursorList; |
| #else |
| rareInheritedData.access()->cursorData = CursorList::create(); |
| #endif |
| } |
| rareInheritedData.access()->cursorData->append(CursorData(image, hotSpotSpecified, hotSpot)); |
| } |
| |
| void ComputedStyle::setCursorList(PassRefPtrWillBeRawPtr<CursorList> other) |
| { |
| rareInheritedData.access()->cursorData = other; |
| } |
| |
| void ComputedStyle::setQuotes(PassRefPtr<QuotesData> q) |
| { |
| rareInheritedData.access()->quotes = q; |
| } |
| |
| void ComputedStyle::clearCursorList() |
| { |
| if (rareInheritedData->cursorData) |
| rareInheritedData.access()->cursorData = nullptr; |
| } |
| |
| void ComputedStyle::addCallbackSelector(const String& selector) |
| { |
| if (!rareNonInheritedData->m_callbackSelectors.contains(selector)) |
| rareNonInheritedData.access()->m_callbackSelectors.append(selector); |
| } |
| |
| void ComputedStyle::clearContent() |
| { |
| if (rareNonInheritedData->m_content) |
| rareNonInheritedData.access()->m_content = nullptr; |
| } |
| |
| void ComputedStyle::appendContent(PassOwnPtrWillBeRawPtr<ContentData> contentData) |
| { |
| OwnPtrWillBePersistent<ContentData>& content = rareNonInheritedData.access()->m_content; |
| ContentData* lastContent = content.get(); |
| while (lastContent && lastContent->next()) |
| lastContent = lastContent->next(); |
| |
| if (lastContent) |
| lastContent->setNext(contentData); |
| else |
| content = contentData; |
| } |
| |
| void ComputedStyle::setContent(PassRefPtrWillBeRawPtr<StyleImage> image, bool add) |
| { |
| if (!image) |
| return; |
| |
| if (add) { |
| appendContent(ContentData::create(image)); |
| return; |
| } |
| |
| rareNonInheritedData.access()->m_content = ContentData::create(image); |
| } |
| |
| void ComputedStyle::setContent(const String& string, bool add) |
| { |
| OwnPtrWillBePersistent<ContentData>& content = rareNonInheritedData.access()->m_content; |
| if (add) { |
| ContentData* lastContent = content.get(); |
| while (lastContent && lastContent->next()) |
| lastContent = lastContent->next(); |
| |
| if (lastContent) { |
| // We attempt to merge with the last ContentData if possible. |
| if (lastContent->isText()) { |
| TextContentData* textContent = toTextContentData(lastContent); |
| textContent->setText(textContent->text() + string); |
| } else { |
| lastContent->setNext(ContentData::create(string)); |
| } |
| |
| return; |
| } |
| } |
| |
| content = ContentData::create(string); |
| } |
| |
| void ComputedStyle::setContent(PassOwnPtr<CounterContent> counter, bool add) |
| { |
| if (!counter) |
| return; |
| |
| if (add) { |
| appendContent(ContentData::create(counter)); |
| return; |
| } |
| |
| rareNonInheritedData.access()->m_content = ContentData::create(counter); |
| } |
| |
| void ComputedStyle::setContent(QuoteType quote, bool add) |
| { |
| if (add) { |
| appendContent(ContentData::create(quote)); |
| return; |
| } |
| |
| rareNonInheritedData.access()->m_content = ContentData::create(quote); |
| } |
| |
| bool ComputedStyle::hasWillChangeCompositingHint() const |
| { |
| for (size_t i = 0; i < rareNonInheritedData->m_willChange->m_properties.size(); ++i) { |
| switch (rareNonInheritedData->m_willChange->m_properties[i]) { |
| case CSSPropertyOpacity: |
| case CSSPropertyTransform: |
| case CSSPropertyAliasWebkitTransform: |
| case CSSPropertyTop: |
| case CSSPropertyLeft: |
| case CSSPropertyBottom: |
| case CSSPropertyRight: |
| return true; |
| default: |
| break; |
| } |
| } |
| return false; |
| } |
| |
| bool ComputedStyle::hasWillChangeTransformHint() const |
| { |
| for (const auto& property: rareNonInheritedData->m_willChange->m_properties) { |
| switch (property) { |
| case CSSPropertyTransform: |
| case CSSPropertyAliasWebkitTransform: |
| return true; |
| default: |
| break; |
| } |
| } |
| return false; |
| } |
| |
| bool ComputedStyle::requireTransformOrigin(ApplyTransformOrigin applyOrigin, ApplyMotionPath applyMotionPath) const |
| { |
| const Vector<RefPtr<TransformOperation>>& transformOperations = transform().operations(); |
| |
| // transform-origin brackets the transform with translate operations. |
| // Optimize for the case where the only transform is a translation, since the transform-origin is irrelevant |
| // in that case. |
| if (applyOrigin != IncludeTransformOrigin) |
| return false; |
| |
| if (applyMotionPath == IncludeMotionPath) |
| return true; |
| |
| unsigned size = transformOperations.size(); |
| for (unsigned i = 0; i < size; ++i) { |
| TransformOperation::OperationType type = transformOperations[i]->type(); |
| if (type != TransformOperation::TranslateX |
| && type != TransformOperation::TranslateY |
| && type != TransformOperation::Translate |
| && type != TransformOperation::TranslateZ |
| && type != TransformOperation::Translate3D) |
| return true; |
| } |
| |
| return scale() || rotate(); |
| } |
| |
| void ComputedStyle::applyTransform(TransformationMatrix& result, const LayoutSize& borderBoxSize, ApplyTransformOrigin applyOrigin, ApplyMotionPath applyMotionPath, ApplyIndependentTransformProperties applyIndependentTransformProperties) const |
| { |
| applyTransform(result, FloatRect(FloatPoint(), FloatSize(borderBoxSize)), applyOrigin, applyMotionPath, applyIndependentTransformProperties); |
| } |
| |
| void ComputedStyle::applyTransform(TransformationMatrix& result, const FloatRect& boundingBox, ApplyTransformOrigin applyOrigin, ApplyMotionPath applyMotionPath, ApplyIndependentTransformProperties applyIndependentTransformProperties) const |
| { |
| if (!hasMotionPath()) |
| applyMotionPath = ExcludeMotionPath; |
| bool applyTransformOrigin = requireTransformOrigin(applyOrigin, applyMotionPath); |
| |
| float offsetX = transformOriginX().type() == Percent ? boundingBox.x() : 0; |
| float offsetY = transformOriginY().type() == Percent ? boundingBox.y() : 0; |
| |
| float originX = 0; |
| float originY = 0; |
| float originZ = 0; |
| |
| if (applyTransformOrigin) { |
| originX = floatValueForLength(transformOriginX(), boundingBox.width()) + offsetX; |
| originY = floatValueForLength(transformOriginY(), boundingBox.height()) + offsetY; |
| originZ = transformOriginZ(); |
| result.translate3d(originX, originY, originZ); |
| } |
| |
| if (applyIndependentTransformProperties == IncludeIndependentTransformProperties) { |
| if (translate()) |
| translate()->apply(result, boundingBox.size()); |
| |
| if (rotate()) |
| rotate()->apply(result, boundingBox.size()); |
| |
| if (scale()) |
| scale()->apply(result, boundingBox.size()); |
| } |
| |
| if (applyMotionPath == ComputedStyle::IncludeMotionPath) |
| applyMotionPathTransform(originX, originY, result); |
| |
| const Vector<RefPtr<TransformOperation>>& transformOperations = transform().operations(); |
| unsigned size = transformOperations.size(); |
| for (unsigned i = 0; i < size; ++i) |
| transformOperations[i]->apply(result, boundingBox.size()); |
| |
| if (applyTransformOrigin) { |
| result.translate3d(-originX, -originY, -originZ); |
| } |
| } |
| |
| void ComputedStyle::applyMotionPathTransform(float originX, float originY, TransformationMatrix& transform) const |
| { |
| const StyleMotionData& motionData = rareNonInheritedData->m_transform->m_motion; |
| ASSERT(motionData.m_path); |
| const StylePath& motionPath = *motionData.m_path; |
| float pathLength = motionPath.length(); |
| float distance = floatValueForLength(motionData.m_offset, pathLength); |
| float computedDistance; |
| if (motionPath.isClosed() && pathLength > 0) { |
| computedDistance = fmod(distance, pathLength); |
| if (computedDistance < 0) |
| computedDistance += pathLength; |
| } else { |
| computedDistance = clampTo<float>(distance, 0, pathLength); |
| } |
| |
| FloatPoint point; |
| float angle; |
| motionPath.path().pointAndNormalAtLength(computedDistance, point, angle); |
| |
| if (motionData.m_rotation.type == MotionRotationFixed) |
| angle = 0; |
| |
| transform.translate(point.x() - originX, point.y() - originY); |
| transform.rotate(angle + motionData.m_rotation.angle); |
| } |
| |
| void ComputedStyle::setTextShadow(PassRefPtr<ShadowList> s) |
| { |
| rareInheritedData.access()->textShadow = s; |
| } |
| |
| void ComputedStyle::setBoxShadow(PassRefPtr<ShadowList> s) |
| { |
| rareNonInheritedData.access()->m_boxShadow = s; |
| } |
| |
| static FloatRoundedRect::Radii calcRadiiFor(const BorderData& border, LayoutSize size) |
| { |
| return FloatRoundedRect::Radii( |
| FloatSize(floatValueForLength(border.topLeft().width(), size.width().toFloat()), |
| floatValueForLength(border.topLeft().height(), size.height().toFloat())), |
| FloatSize(floatValueForLength(border.topRight().width(), size.width().toFloat()), |
| floatValueForLength(border.topRight().height(), size.height().toFloat())), |
| FloatSize(floatValueForLength(border.bottomLeft().width(), size.width().toFloat()), |
| floatValueForLength(border.bottomLeft().height(), size.height().toFloat())), |
| FloatSize(floatValueForLength(border.bottomRight().width(), size.width().toFloat()), |
| floatValueForLength(border.bottomRight().height(), size.height().toFloat()))); |
| } |
| |
| StyleImage* ComputedStyle::listStyleImage() const { return rareInheritedData->listStyleImage.get(); } |
| void ComputedStyle::setListStyleImage(PassRefPtrWillBeRawPtr<StyleImage> v) |
| { |
| if (rareInheritedData->listStyleImage != v) |
| rareInheritedData.access()->listStyleImage = v; |
| } |
| |
| Color ComputedStyle::color() const { return inherited->color; } |
| Color ComputedStyle::visitedLinkColor() const { return inherited->visitedLinkColor; } |
| void ComputedStyle::setColor(const Color& v) { SET_VAR(inherited, color, v); } |
| void ComputedStyle::setVisitedLinkColor(const Color& v) { SET_VAR(inherited, visitedLinkColor, v); } |
| |
| short ComputedStyle::horizontalBorderSpacing() const { return inherited->horizontal_border_spacing; } |
| short ComputedStyle::verticalBorderSpacing() const { return inherited->vertical_border_spacing; } |
| void ComputedStyle::setHorizontalBorderSpacing(short v) { SET_VAR(inherited, horizontal_border_spacing, v); } |
| void ComputedStyle::setVerticalBorderSpacing(short v) { SET_VAR(inherited, vertical_border_spacing, v); } |
| |
| FloatRoundedRect ComputedStyle::getRoundedBorderFor(const LayoutRect& borderRect, |
| bool includeLogicalLeftEdge, bool includeLogicalRightEdge) const |
| { |
| FloatRoundedRect roundedRect(pixelSnappedIntRect(borderRect)); |
| if (hasBorderRadius()) { |
| FloatRoundedRect::Radii radii = calcRadiiFor(surround->border, borderRect.size()); |
| roundedRect.includeLogicalEdges(radii, isHorizontalWritingMode(), includeLogicalLeftEdge, includeLogicalRightEdge); |
| roundedRect.constrainRadii(); |
| } |
| return roundedRect; |
| } |
| |
| FloatRoundedRect ComputedStyle::getRoundedInnerBorderFor(const LayoutRect& borderRect, bool includeLogicalLeftEdge, bool includeLogicalRightEdge) const |
| { |
| bool horizontal = isHorizontalWritingMode(); |
| |
| int leftWidth = (!horizontal || includeLogicalLeftEdge) ? borderLeftWidth() : 0; |
| int rightWidth = (!horizontal || includeLogicalRightEdge) ? borderRightWidth() : 0; |
| int topWidth = (horizontal || includeLogicalLeftEdge) ? borderTopWidth() : 0; |
| int bottomWidth = (horizontal || includeLogicalRightEdge) ? borderBottomWidth() : 0; |
| |
| return getRoundedInnerBorderFor(borderRect, |
| LayoutRectOutsets(-topWidth, -rightWidth, -bottomWidth, -leftWidth), |
| includeLogicalLeftEdge, includeLogicalRightEdge); |
| } |
| |
| FloatRoundedRect ComputedStyle::getRoundedInnerBorderFor(const LayoutRect& borderRect, |
| const LayoutRectOutsets insets, bool includeLogicalLeftEdge, bool includeLogicalRightEdge) const |
| { |
| LayoutRect innerRect(borderRect); |
| innerRect.expand(insets); |
| |
| FloatRoundedRect roundedRect(pixelSnappedIntRect(innerRect)); |
| |
| if (hasBorderRadius()) { |
| FloatRoundedRect::Radii radii = getRoundedBorderFor(borderRect).radii(); |
| // Insets use negative values. |
| radii.shrink( |
| -insets.top().toFloat(), |
| -insets.bottom().toFloat(), |
| -insets.left().toFloat(), |
| -insets.right().toFloat()); |
| roundedRect.includeLogicalEdges(radii, isHorizontalWritingMode(), includeLogicalLeftEdge, includeLogicalRightEdge); |
| } |
| return roundedRect; |
| } |
| |
| static bool allLayersAreFixed(const FillLayer& layer) |
| { |
| for (const FillLayer* currLayer = &layer; currLayer; currLayer = currLayer->next()) { |
| if (!currLayer->image() || currLayer->attachment() != FixedBackgroundAttachment) |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ComputedStyle::hasEntirelyFixedBackground() const |
| { |
| return allLayersAreFixed(backgroundLayers()); |
| } |
| |
| const CounterDirectiveMap* ComputedStyle::counterDirectives() const |
| { |
| return rareNonInheritedData->m_counterDirectives.get(); |
| } |
| |
| CounterDirectiveMap& ComputedStyle::accessCounterDirectives() |
| { |
| OwnPtr<CounterDirectiveMap>& map = rareNonInheritedData.access()->m_counterDirectives; |
| if (!map) |
| map = adoptPtr(new CounterDirectiveMap); |
| return *map; |
| } |
| |
| const CounterDirectives ComputedStyle::getCounterDirectives(const AtomicString& identifier) const |
| { |
| if (const CounterDirectiveMap* directives = counterDirectives()) |
| return directives->get(identifier); |
| return CounterDirectives(); |
| } |
| |
| void ComputedStyle::clearIncrementDirectives() |
| { |
| if (!counterDirectives()) |
| return; |
| |
| // This makes us copy even if we may not be removing any items. |
| CounterDirectiveMap& map = accessCounterDirectives(); |
| typedef CounterDirectiveMap::iterator Iterator; |
| |
| Iterator end = map.end(); |
| for (Iterator it = map.begin(); it != end; ++it) |
| it->value.clearIncrement(); |
| } |
| |
| void ComputedStyle::clearResetDirectives() |
| { |
| if (!counterDirectives()) |
| return; |
| |
| // This makes us copy even if we may not be removing any items. |
| CounterDirectiveMap& map = accessCounterDirectives(); |
| typedef CounterDirectiveMap::iterator Iterator; |
| |
| Iterator end = map.end(); |
| for (Iterator it = map.begin(); it != end; ++it) |
| it->value.clearReset(); |
| } |
| |
| const AtomicString& ComputedStyle::hyphenString() const |
| { |
| const AtomicString& hyphenationString = rareInheritedData.get()->hyphenationString; |
| if (!hyphenationString.isNull()) |
| return hyphenationString; |
| |
| // FIXME: This should depend on locale. |
| DEFINE_STATIC_LOCAL(AtomicString, hyphenMinusString, (&hyphenMinusCharacter, 1)); |
| DEFINE_STATIC_LOCAL(AtomicString, hyphenString, (&hyphenCharacter, 1)); |
| const SimpleFontData* primaryFont = font().primaryFont(); |
| ASSERT(primaryFont); |
| return primaryFont->glyphForCharacter(hyphenCharacter) ? hyphenString : hyphenMinusString; |
| } |
| |
| const AtomicString& ComputedStyle::textEmphasisMarkString() const |
| { |
| switch (textEmphasisMark()) { |
| case TextEmphasisMarkNone: |
| return nullAtom; |
| case TextEmphasisMarkCustom: |
| return textEmphasisCustomMark(); |
| case TextEmphasisMarkDot: { |
| DEFINE_STATIC_LOCAL(AtomicString, filledDotString, (&bulletCharacter, 1)); |
| DEFINE_STATIC_LOCAL(AtomicString, openDotString, (&whiteBulletCharacter, 1)); |
| return textEmphasisFill() == TextEmphasisFillFilled ? filledDotString : openDotString; |
| } |
| case TextEmphasisMarkCircle: { |
| DEFINE_STATIC_LOCAL(AtomicString, filledCircleString, (&blackCircleCharacter, 1)); |
| DEFINE_STATIC_LOCAL(AtomicString, openCircleString, (&whiteCircleCharacter, 1)); |
| return textEmphasisFill() == TextEmphasisFillFilled ? filledCircleString : openCircleString; |
| } |
| case TextEmphasisMarkDoubleCircle: { |
| DEFINE_STATIC_LOCAL(AtomicString, filledDoubleCircleString, (&fisheyeCharacter, 1)); |
| DEFINE_STATIC_LOCAL(AtomicString, openDoubleCircleString, (&bullseyeCharacter, 1)); |
| return textEmphasisFill() == TextEmphasisFillFilled ? filledDoubleCircleString : openDoubleCircleString; |
| } |
| case TextEmphasisMarkTriangle: { |
| DEFINE_STATIC_LOCAL(AtomicString, filledTriangleString, (&blackUpPointingTriangleCharacter, 1)); |
| DEFINE_STATIC_LOCAL(AtomicString, openTriangleString, (&whiteUpPointingTriangleCharacter, 1)); |
| return textEmphasisFill() == TextEmphasisFillFilled ? filledTriangleString : openTriangleString; |
| } |
| case TextEmphasisMarkSesame: { |
| DEFINE_STATIC_LOCAL(AtomicString, filledSesameString, (&sesameDotCharacter, 1)); |
| DEFINE_STATIC_LOCAL(AtomicString, openSesameString, (&whiteSesameDotCharacter, 1)); |
| return textEmphasisFill() == TextEmphasisFillFilled ? filledSesameString : openSesameString; |
| } |
| case TextEmphasisMarkAuto: |
| ASSERT_NOT_REACHED(); |
| return nullAtom; |
| } |
| |
| ASSERT_NOT_REACHED(); |
| return nullAtom; |
| } |
| |
| CSSAnimationData& ComputedStyle::accessAnimations() |
| { |
| if (!rareNonInheritedData.access()->m_animations) |
| rareNonInheritedData.access()->m_animations = CSSAnimationData::create(); |
| return *rareNonInheritedData->m_animations; |
| } |
| |
| CSSTransitionData& ComputedStyle::accessTransitions() |
| { |
| if (!rareNonInheritedData.access()->m_transitions) |
| rareNonInheritedData.access()->m_transitions = CSSTransitionData::create(); |
| return *rareNonInheritedData->m_transitions; |
| } |
| |
| const Font& ComputedStyle::font() const { return inherited->font; } |
| const FontMetrics& ComputedStyle::fontMetrics() const { return inherited->font.fontMetrics(); } |
| const FontDescription& ComputedStyle::fontDescription() const { return inherited->font.fontDescription(); } |
| float ComputedStyle::specifiedFontSize() const { return fontDescription().specifiedSize(); } |
| float ComputedStyle::computedFontSize() const { return fontDescription().computedSize(); } |
| int ComputedStyle::fontSize() const { return fontDescription().computedPixelSize(); } |
| float ComputedStyle::fontSizeAdjust() const { return fontDescription().sizeAdjust(); } |
| bool ComputedStyle::hasFontSizeAdjust() const { return fontDescription().hasSizeAdjust(); } |
| FontWeight ComputedStyle::fontWeight() const { return fontDescription().weight(); } |
| FontStretch ComputedStyle::fontStretch() const { return fontDescription().stretch(); } |
| |
| TextDecoration ComputedStyle::textDecorationsInEffect() const |
| { |
| int decorations = 0; |
| |
| const Vector<AppliedTextDecoration>& applied = appliedTextDecorations(); |
| |
| for (size_t i = 0; i < applied.size(); ++i) |
| decorations |= applied[i].line(); |
| |
| return static_cast<TextDecoration>(decorations); |
| } |
| |
| const Vector<AppliedTextDecoration>& ComputedStyle::appliedTextDecorations() const |
| { |
| if (!inherited_flags.m_textUnderline && !rareInheritedData->appliedTextDecorations) { |
| DEFINE_STATIC_LOCAL(Vector<AppliedTextDecoration>, empty, ()); |
| return empty; |
| } |
| if (inherited_flags.m_textUnderline) { |
| DEFINE_STATIC_LOCAL(Vector<AppliedTextDecoration>, underline, (1, AppliedTextDecoration(TextDecorationUnderline))); |
| return underline; |
| } |
| |
| return rareInheritedData->appliedTextDecorations->vector(); |
| } |
| |
| StyleVariableData* ComputedStyle::variables() const |
| { |
| ASSERT(RuntimeEnabledFeatures::cssVariablesEnabled()); |
| return rareInheritedData->variables.get(); |
| } |
| |
| void ComputedStyle::setVariable(const AtomicString& name, PassRefPtr<CSSVariableData> value) |
| { |
| RefPtr<StyleVariableData>& variables = rareInheritedData.access()->variables; |
| if (!variables) |
| variables = StyleVariableData::create(); |
| else if (!variables->hasOneRef()) |
| variables = variables->copy(); |
| variables->setVariable(name, value); |
| } |
| |
| void ComputedStyle::removeVariable(const AtomicString& name) |
| { |
| RefPtr<StyleVariableData>& variables = rareInheritedData.access()->variables; |
| if (!variables) |
| return; |
| if (!variables->hasOneRef()) |
| variables = variables->copy(); |
| variables->removeVariable(name); |
| } |
| |
| float ComputedStyle::wordSpacing() const { return fontDescription().wordSpacing(); } |
| float ComputedStyle::letterSpacing() const { return fontDescription().letterSpacing(); } |
| |
| bool ComputedStyle::setFontDescription(const FontDescription& v) |
| { |
| if (inherited->font.fontDescription() != v) { |
| inherited.access()->font = Font(v); |
| return true; |
| } |
| return false; |
| } |
| |
| void ComputedStyle::setFont(const Font& font) |
| { |
| inherited.access()->font = font; |
| } |
| |
| const Length& ComputedStyle::specifiedLineHeight() const { return inherited->line_height; } |
| Length ComputedStyle::lineHeight() const |
| { |
| const Length& lh = inherited->line_height; |
| // Unlike fontDescription().computedSize() and hence fontSize(), this is |
| // recalculated on demand as we only store the specified line height. |
| // FIXME: Should consider scaling the fixed part of any calc expressions |
| // too, though this involves messily poking into CalcExpressionLength. |
| float multiplier = textAutosizingMultiplier(); |
| if (multiplier > 1 && lh.isFixed()) |
| return Length(TextAutosizer::computeAutosizedFontSize(lh.value(), multiplier), Fixed); |
| |
| return lh; |
| } |
| |
| void ComputedStyle::setLineHeight(const Length& specifiedLineHeight) { SET_VAR(inherited, line_height, specifiedLineHeight); } |
| |
| int ComputedStyle::computedLineHeight() const |
| { |
| const Length& lh = lineHeight(); |
| |
| // Negative value means the line height is not set. Use the font's built-in |
| // spacing, if avalible. |
| if (lh.isNegative() && font().primaryFont()) |
| return fontMetrics().lineSpacing(); |
| |
| if (lh.hasPercent()) |
| return minimumValueForLength(lh, LayoutUnit(computedFontSize())); |
| |
| return std::min(lh.value(), LayoutUnit::max().toFloat()); |
| } |
| |
| void ComputedStyle::setWordSpacing(float wordSpacing) |
| { |
| FontSelector* currentFontSelector = font().fontSelector(); |
| FontDescription desc(fontDescription()); |
| desc.setWordSpacing(wordSpacing); |
| setFontDescription(desc); |
| font().update(currentFontSelector); |
| } |
| |
| void ComputedStyle::setLetterSpacing(float letterSpacing) |
| { |
| FontSelector* currentFontSelector = font().fontSelector(); |
| FontDescription desc(fontDescription()); |
| desc.setLetterSpacing(letterSpacing); |
| setFontDescription(desc); |
| font().update(currentFontSelector); |
| } |
| |
| void ComputedStyle::setTextAutosizingMultiplier(float multiplier) |
| { |
| SET_VAR(inherited, textAutosizingMultiplier, multiplier); |
| |
| float size = specifiedFontSize(); |
| |
| ASSERT(std::isfinite(size)); |
| if (!std::isfinite(size) || size < 0) |
| size = 0; |
| else |
| size = std::min(maximumAllowedFontSize, size); |
| |
| FontSelector* currentFontSelector = font().fontSelector(); |
| FontDescription desc(fontDescription()); |
| desc.setSpecifiedSize(size); |
| desc.setComputedSize(size); |
| |
| if (multiplier > 1) { |
| float autosizedFontSize = TextAutosizer::computeAutosizedFontSize(size, multiplier); |
| desc.setComputedSize(std::min(maximumAllowedFontSize, autosizedFontSize)); |
| } |
| |
| setFontDescription(desc); |
| font().update(currentFontSelector); |
| } |
| |
| void ComputedStyle::addAppliedTextDecoration(const AppliedTextDecoration& decoration) |
| { |
| RefPtr<AppliedTextDecorationList>& list = rareInheritedData.access()->appliedTextDecorations; |
| |
| if (!list) |
| list = AppliedTextDecorationList::create(); |
| else if (!list->hasOneRef()) |
| list = list->copy(); |
| |
| if (inherited_flags.m_textUnderline) { |
| inherited_flags.m_textUnderline = false; |
| list->append(AppliedTextDecoration(TextDecorationUnderline)); |
| } |
| |
| list->append(decoration); |
| } |
| |
| void ComputedStyle::applyTextDecorations() |
| { |
| if (textDecoration() == TextDecorationNone) |
| return; |
| |
| TextDecorationStyle style = textDecorationStyle(); |
| StyleColor styleColor = decorationColorIncludingFallback(insideLink() == InsideVisitedLink); |
| |
| int decorations = textDecoration(); |
| |
| if (decorations & TextDecorationUnderline) { |
| // To save memory, we don't use AppliedTextDecoration objects in the |
| // common case of a single simple underline. |
| AppliedTextDecoration underline(TextDecorationUnderline, style, styleColor); |
| |
| if (!rareInheritedData->appliedTextDecorations && underline.isSimpleUnderline()) |
| inherited_flags.m_textUnderline = true; |
| else |
| addAppliedTextDecoration(underline); |
| } |
| if (decorations & TextDecorationOverline) |
| addAppliedTextDecoration(AppliedTextDecoration(TextDecorationOverline, style, styleColor)); |
| if (decorations & TextDecorationLineThrough) |
| addAppliedTextDecoration(AppliedTextDecoration(TextDecorationLineThrough, style, styleColor)); |
| } |
| |
| void ComputedStyle::clearAppliedTextDecorations() |
| { |
| inherited_flags.m_textUnderline = false; |
| |
| if (rareInheritedData->appliedTextDecorations) |
| rareInheritedData.access()->appliedTextDecorations = nullptr; |
| } |
| |
| void ComputedStyle::clearMultiCol() |
| { |
| rareNonInheritedData.access()->m_multiCol = nullptr; |
| rareNonInheritedData.access()->m_multiCol.init(); |
| } |
| |
| StyleColor ComputedStyle::decorationColorIncludingFallback(bool visitedLink) const |
| { |
| StyleColor styleColor = visitedLink ? visitedLinkTextDecorationColor() : textDecorationColor(); |
| |
| if (!styleColor.isCurrentColor()) |
| return styleColor; |
| |
| if (textStrokeWidth()) { |
| // Prefer stroke color if possible, but not if it's fully transparent. |
| StyleColor textStrokeStyleColor = visitedLink ? visitedLinkTextStrokeColor() : textStrokeColor(); |
| if (!textStrokeStyleColor.isCurrentColor() && textStrokeStyleColor.color().alpha()) |
| return textStrokeStyleColor; |
| } |
| |
| return visitedLink ? visitedLinkTextFillColor() : textFillColor(); |
| } |
| |
| Color ComputedStyle::colorIncludingFallback(int colorProperty, bool visitedLink) const |
| { |
| StyleColor result(StyleColor::currentColor()); |
| EBorderStyle borderStyle = BNONE; |
| switch (colorProperty) { |
| case CSSPropertyBackgroundColor: |
| result = visitedLink ? visitedLinkBackgroundColor() : backgroundColor(); |
| break; |
| case CSSPropertyBorderLeftColor: |
| result = visitedLink ? visitedLinkBorderLeftColor() : borderLeftColor(); |
| borderStyle = borderLeftStyle(); |
| break; |
| case CSSPropertyBorderRightColor: |
| result = visitedLink ? visitedLinkBorderRightColor() : borderRightColor(); |
| borderStyle = borderRightStyle(); |
| break; |
| case CSSPropertyBorderTopColor: |
| result = visitedLink ? visitedLinkBorderTopColor() : borderTopColor(); |
| borderStyle = borderTopStyle(); |
| break; |
| case CSSPropertyBorderBottomColor: |
| result = visitedLink ? visitedLinkBorderBottomColor() : borderBottomColor(); |
| borderStyle = borderBottomStyle(); |
| break; |
| case CSSPropertyColor: |
| result = visitedLink ? visitedLinkColor() : color(); |
| break; |
| case CSSPropertyOutlineColor: |
| result = visitedLink ? visitedLinkOutlineColor() : outlineColor(); |
| break; |
| case CSSPropertyColumnRuleColor: |
| result = visitedLink ? visitedLinkColumnRuleColor() : columnRuleColor(); |
| break; |
| case CSSPropertyWebkitTextEmphasisColor: |
| result = visitedLink ? visitedLinkTextEmphasisColor() : textEmphasisColor(); |
| break; |
| case CSSPropertyWebkitTextFillColor: |
| result = visitedLink ? visitedLinkTextFillColor() : textFillColor(); |
| break; |
| case CSSPropertyWebkitTextStrokeColor: |
| result = visitedLink ? visitedLinkTextStrokeColor() : textStrokeColor(); |
| break; |
| case CSSPropertyFloodColor: |
| result = floodColor(); |
| break; |
| case CSSPropertyLightingColor: |
| result = lightingColor(); |
| break; |
| case CSSPropertyStopColor: |
| result = stopColor(); |
| break; |
| case CSSPropertyWebkitTapHighlightColor: |
| result = tapHighlightColor(); |
| break; |
| case CSSPropertyTextDecorationColor: |
| result = decorationColorIncludingFallback(visitedLink); |
| break; |
| default: |
| ASSERT_NOT_REACHED(); |
| break; |
| } |
| |
| if (!result.isCurrentColor()) |
| return result.color(); |
| |
| // FIXME: Treating styled borders with initial color differently causes problems |
| // See crbug.com/316559, crbug.com/276231 |
| if (!visitedLink && (borderStyle == INSET || borderStyle == OUTSET || borderStyle == RIDGE || borderStyle == GROOVE)) |
| return Color(238, 238, 238); |
| return visitedLink ? visitedLinkColor() : color(); |
| } |
| |
| Color ComputedStyle::visitedDependentColor(int colorProperty) const |
| { |
| Color unvisitedColor = colorIncludingFallback(colorProperty, false); |
| if (insideLink() != InsideVisitedLink) |
| return unvisitedColor; |
| |
| Color visitedColor = colorIncludingFallback(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::transparent) |
| return unvisitedColor; |
| |
| // Take the alpha from the unvisited color, but get the RGB values from the visited color. |
| return Color(visitedColor.red(), visitedColor.green(), visitedColor.blue(), unvisitedColor.alpha()); |
| } |
| |
| const BorderValue& ComputedStyle::borderBefore() const |
| { |
| switch (writingMode()) { |
| case TopToBottomWritingMode: |
| return borderTop(); |
| case LeftToRightWritingMode: |
| return borderLeft(); |
| case RightToLeftWritingMode: |
| return borderRight(); |
| } |
| ASSERT_NOT_REACHED(); |
| return borderTop(); |
| } |
| |
| const BorderValue& ComputedStyle::borderAfter() const |
| { |
| switch (writingMode()) { |
| case TopToBottomWritingMode: |
| return borderBottom(); |
| case LeftToRightWritingMode: |
| return borderRight(); |
| case RightToLeftWritingMode: |
| return borderLeft(); |
| } |
| ASSERT_NOT_REACHED(); |
| return borderBottom(); |
| } |
| |
| const BorderValue& ComputedStyle::borderStart() const |
| { |
| if (isHorizontalWritingMode()) |
| return isLeftToRightDirection() ? borderLeft() : borderRight(); |
| return isLeftToRightDirection() ? borderTop() : borderBottom(); |
| } |
| |
| const BorderValue& ComputedStyle::borderEnd() const |
| { |
| if (isHorizontalWritingMode()) |
| return isLeftToRightDirection() ? borderRight() : borderLeft(); |
| return isLeftToRightDirection() ? borderBottom() : borderTop(); |
| } |
| |
| int ComputedStyle::borderBeforeWidth() const |
| { |
| switch (writingMode()) { |
| case TopToBottomWritingMode: |
| return borderTopWidth(); |
| case LeftToRightWritingMode: |
| return borderLeftWidth(); |
| case RightToLeftWritingMode: |
| return borderRightWidth(); |
| } |
| ASSERT_NOT_REACHED(); |
| return borderTopWidth(); |
| } |
| |
| int ComputedStyle::borderAfterWidth() const |
| { |
| switch (writingMode()) { |
| case TopToBottomWritingMode: |
| return borderBottomWidth(); |
| case LeftToRightWritingMode: |
| return borderRightWidth(); |
| case RightToLeftWritingMode: |
| return borderLeftWidth(); |
| } |
| ASSERT_NOT_REACHED(); |
| return borderBottomWidth(); |
| } |
| |
| int ComputedStyle::borderStartWidth() const |
| { |
| if (isHorizontalWritingMode()) |
| return isLeftToRightDirection() ? borderLeftWidth() : borderRightWidth(); |
| return isLeftToRightDirection() ? borderTopWidth() : borderBottomWidth(); |
| } |
| |
| int ComputedStyle::borderEndWidth() const |
| { |
| if (isHorizontalWritingMode()) |
| return isLeftToRightDirection() ? borderRightWidth() : borderLeftWidth(); |
| return isLeftToRightDirection() ? borderBottomWidth() : borderTopWidth(); |
| } |
| |
| int ComputedStyle::borderOverWidth() const |
| { |
| return isHorizontalWritingMode() ? borderTopWidth() : borderRightWidth(); |
| } |
| |
| int ComputedStyle::borderUnderWidth() const |
| { |
| return isHorizontalWritingMode() ? borderBottomWidth() : borderLeftWidth(); |
| } |
| |
| void ComputedStyle::setMarginStart(const Length& margin) |
| { |
| if (isHorizontalWritingMode()) { |
| if (isLeftToRightDirection()) |
| setMarginLeft(margin); |
| else |
| setMarginRight(margin); |
| } else { |
| if (isLeftToRightDirection()) |
| setMarginTop(margin); |
| else |
| setMarginBottom(margin); |
| } |
| } |
| |
| void ComputedStyle::setMarginEnd(const Length& margin) |
| { |
| if (isHorizontalWritingMode()) { |
| if (isLeftToRightDirection()) |
| setMarginRight(margin); |
| else |
| setMarginLeft(margin); |
| } else { |
| if (isLeftToRightDirection()) |
| setMarginBottom(margin); |
| else |
| setMarginTop(margin); |
| } |
| } |
| |
| void ComputedStyle::setMotionPath(PassRefPtr<StylePath> path) |
| { |
| rareNonInheritedData.access()->m_transform.access()->m_motion.m_path = path; |
| } |
| |
| int ComputedStyle::outlineOutsetExtent() const |
| { |
| if (!hasOutline()) |
| return 0; |
| if (outlineStyleIsAuto()) |
| return GraphicsContext::focusRingOutsetExtent(outlineOffset(), outlineWidth()); |
| return std::max(0, outlineWidth() + outlineOffset()); |
| } |
| |
| bool ComputedStyle::columnRuleEquivalent(const ComputedStyle* otherStyle) const |
| { |
| return columnRuleStyle() == otherStyle->columnRuleStyle() |
| && columnRuleWidth() == otherStyle->columnRuleWidth() |
| && visitedDependentColor(CSSPropertyColumnRuleColor) == otherStyle->visitedDependentColor(CSSPropertyColumnRuleColor); |
| } |
| |
| TextEmphasisMark ComputedStyle::textEmphasisMark() const |
| { |
| TextEmphasisMark mark = static_cast<TextEmphasisMark>(rareInheritedData->textEmphasisMark); |
| if (mark != TextEmphasisMarkAuto) |
| return mark; |
| |
| if (isHorizontalWritingMode()) |
| return TextEmphasisMarkDot; |
| |
| return TextEmphasisMarkSesame; |
| } |
| |
| Color ComputedStyle::initialTapHighlightColor() |
| { |
| return LayoutTheme::tapHighlightColor(); |
| } |
| |
| #if ENABLE(OILPAN) |
| const FilterOperations& ComputedStyle::initialFilter() |
| { |
| DEFINE_STATIC_LOCAL(Persistent<FilterOperationsWrapper>, ops, (FilterOperationsWrapper::create())); |
| return ops->operations(); |
| } |
| |
| const FilterOperations& ComputedStyle::initialBackdropFilter() |
| { |
| DEFINE_STATIC_LOCAL(Persistent<FilterOperationsWrapper>, ops, (FilterOperationsWrapper::create())); |
| return ops->operations(); |
| } |
| #endif |
| |
| LayoutRectOutsets ComputedStyle::imageOutsets(const NinePieceImage& image) const |
| { |
| return LayoutRectOutsets( |
| NinePieceImage::computeOutset(image.outset().top(), borderTopWidth()), |
| NinePieceImage::computeOutset(image.outset().right(), borderRightWidth()), |
| NinePieceImage::computeOutset(image.outset().bottom(), borderBottomWidth()), |
| NinePieceImage::computeOutset(image.outset().left(), borderLeftWidth())); |
| } |
| |
| void ComputedStyle::setBorderImageSource(PassRefPtrWillBeRawPtr<StyleImage> image) |
| { |
| if (surround->border.m_image.image() == image.get()) |
| return; |
| surround.access()->border.m_image.setImage(image); |
| } |
| |
| void ComputedStyle::setBorderImageSlices(const LengthBox& slices) |
| { |
| if (surround->border.m_image.imageSlices() == slices) |
| return; |
| surround.access()->border.m_image.setImageSlices(slices); |
| } |
| |
| void ComputedStyle::setBorderImageSlicesFill(bool fill) |
| { |
| if (surround->border.m_image.fill() == fill) |
| return; |
| surround.access()->border.m_image.setFill(fill); |
| } |
| |
| void ComputedStyle::setBorderImageWidth(const BorderImageLengthBox& slices) |
| { |
| if (surround->border.m_image.borderSlices() == slices) |
| return; |
| surround.access()->border.m_image.setBorderSlices(slices); |
| } |
| |
| void ComputedStyle::setBorderImageOutset(const BorderImageLengthBox& outset) |
| { |
| if (surround->border.m_image.outset() == outset) |
| return; |
| surround.access()->border.m_image.setOutset(outset); |
| } |
| |
| bool ComputedStyle::borderObscuresBackground() const |
| { |
| if (!hasBorder()) |
| return false; |
| |
| // Bail if we have any border-image for now. We could look at the image alpha to improve this. |
| if (borderImage().image()) |
| return false; |
| |
| BorderEdge edges[4]; |
| getBorderEdgeInfo(edges); |
| |
| for (int i = BSTop; i <= BSLeft; ++i) { |
| const BorderEdge& currEdge = edges[i]; |
| if (!currEdge.obscuresBackground()) |
| return false; |
| } |
| |
| return true; |
| } |
| |
| void ComputedStyle::getBorderEdgeInfo(BorderEdge edges[], bool includeLogicalLeftEdge, bool includeLogicalRightEdge) const |
| { |
| bool horizontal = isHorizontalWritingMode(); |
| |
| edges[BSTop] = BorderEdge(LayoutUnit(borderTopWidth()), |
| visitedDependentColor(CSSPropertyBorderTopColor), |
| borderTopStyle(), |
| horizontal || includeLogicalLeftEdge); |
| |
| edges[BSRight] = BorderEdge(LayoutUnit(borderRightWidth()), |
| visitedDependentColor(CSSPropertyBorderRightColor), |
| borderRightStyle(), |
| !horizontal || includeLogicalRightEdge); |
| |
| edges[BSBottom] = BorderEdge(LayoutUnit(borderBottomWidth()), |
| visitedDependentColor(CSSPropertyBorderBottomColor), |
| borderBottomStyle(), |
| horizontal || includeLogicalRightEdge); |
| |
| edges[BSLeft] = BorderEdge(LayoutUnit(borderLeftWidth()), |
| visitedDependentColor(CSSPropertyBorderLeftColor), |
| borderLeftStyle(), |
| !horizontal || includeLogicalLeftEdge); |
| } |
| |
| void ComputedStyle::copyChildDependentFlagsFrom(const ComputedStyle& other) |
| { |
| setEmptyState(other.emptyState()); |
| if (other.hasExplicitlyInheritedProperties()) |
| setHasExplicitlyInheritedProperties(); |
| } |
| |
| bool ComputedStyle::shadowListHasCurrentColor(const ShadowList* shadowList) |
| { |
| if (!shadowList) |
| return false; |
| for (size_t i = shadowList->shadows().size(); i--; ) { |
| if (shadowList->shadows()[i].color().isCurrentColor()) |
| return true; |
| } |
| return false; |
| } |
| |
| } // namespace blink |
