| /* |
| * 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 "config.h" |
| #include "core/rendering/style/RenderStyle.h" |
| |
| #include <algorithm> |
| #include "CSSPropertyNames.h" |
| #include "RuntimeEnabledFeatures.h" |
| #include "core/css/resolver/StyleResolver.h" |
| #include "core/platform/graphics/Font.h" |
| #include "core/platform/graphics/FontSelector.h" |
| #include "core/rendering/RenderTheme.h" |
| #include "core/rendering/TextAutosizer.h" |
| #include "core/rendering/style/ContentData.h" |
| #include "core/rendering/style/CursorList.h" |
| #include "core/rendering/style/QuotesData.h" |
| #include "core/rendering/style/ShadowData.h" |
| #include "core/rendering/style/StyleImage.h" |
| #include "core/rendering/style/StyleInheritedData.h" |
| #include "wtf/MathExtras.h" |
| #include "wtf/StdLibExtras.h" |
| |
| using namespace std; |
| |
| namespace WebCore { |
| |
| struct SameSizeAsBorderValue { |
| RGBA32 m_color; |
| unsigned m_width; |
| }; |
| |
| COMPILE_ASSERT(sizeof(BorderValue) == sizeof(SameSizeAsBorderValue), BorderValue_should_not_grow); |
| |
| struct SameSizeAsRenderStyle : public RefCounted<SameSizeAsRenderStyle> { |
| void* dataRefs[7]; |
| void* ownPtrs[1]; |
| void* dataRefSvgStyle; |
| |
| struct InheritedFlags { |
| unsigned m_bitfields[2]; |
| } inherited_flags; |
| |
| struct NonInheritedFlags { |
| unsigned m_bitfields[2]; |
| } noninherited_flags; |
| }; |
| |
| COMPILE_ASSERT(sizeof(RenderStyle) == sizeof(SameSizeAsRenderStyle), RenderStyle_should_stay_small); |
| |
| inline RenderStyle* defaultStyle() |
| { |
| static RenderStyle* s_defaultStyle = RenderStyle::createDefaultStyle().leakRef(); |
| return s_defaultStyle; |
| } |
| |
| PassRefPtr<RenderStyle> RenderStyle::create() |
| { |
| return adoptRef(new RenderStyle()); |
| } |
| |
| PassRefPtr<RenderStyle> RenderStyle::createDefaultStyle() |
| { |
| return adoptRef(new RenderStyle(true)); |
| } |
| |
| PassRefPtr<RenderStyle> RenderStyle::createAnonymousStyleWithDisplay(const RenderStyle* parentStyle, EDisplay display) |
| { |
| RefPtr<RenderStyle> newStyle = RenderStyle::create(); |
| newStyle->inheritFrom(parentStyle); |
| newStyle->inheritUnicodeBidiFrom(parentStyle); |
| newStyle->setDisplay(display); |
| return newStyle; |
| } |
| |
| PassRefPtr<RenderStyle> RenderStyle::clone(const RenderStyle* other) |
| { |
| return adoptRef(new RenderStyle(*other)); |
| } |
| |
| ALWAYS_INLINE RenderStyle::RenderStyle() |
| : m_box(defaultStyle()->m_box) |
| , visual(defaultStyle()->visual) |
| , m_background(defaultStyle()->m_background) |
| , surround(defaultStyle()->surround) |
| , rareNonInheritedData(defaultStyle()->rareNonInheritedData) |
| , rareInheritedData(defaultStyle()->rareInheritedData) |
| , inherited(defaultStyle()->inherited) |
| , m_svgStyle(defaultStyle()->m_svgStyle) |
| { |
| setBitDefaults(); // Would it be faster to copy this from the default style? |
| COMPILE_ASSERT((sizeof(InheritedFlags) <= 8), InheritedFlags_does_not_grow); |
| COMPILE_ASSERT((sizeof(NonInheritedFlags) <= 8), NonInheritedFlags_does_not_grow); |
| } |
| |
| ALWAYS_INLINE RenderStyle::RenderStyle(bool) |
| { |
| 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_marquee.init(); |
| rareNonInheritedData.access()->m_multiCol.init(); |
| rareNonInheritedData.access()->m_transform.init(); |
| rareNonInheritedData.access()->m_filter.init(); |
| rareNonInheritedData.access()->m_grid.init(); |
| rareNonInheritedData.access()->m_gridItem.init(); |
| rareInheritedData.init(); |
| inherited.init(); |
| m_svgStyle.init(); |
| } |
| |
| ALWAYS_INLINE RenderStyle::RenderStyle(const RenderStyle& o) |
| : RefCounted<RenderStyle>() |
| , 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) |
| { |
| } |
| |
| void RenderStyle::inheritFrom(const RenderStyle* 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 RenderStyle::copyNonInheritedFrom(const RenderStyle* 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. |
| 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._vertical_align = other->noninherited_flags._vertical_align; |
| noninherited_flags._clear = other->noninherited_flags._clear; |
| noninherited_flags._position = other->noninherited_flags._position; |
| noninherited_flags._floating = other->noninherited_flags._floating; |
| noninherited_flags._table_layout = other->noninherited_flags._table_layout; |
| noninherited_flags._unicodeBidi = other->noninherited_flags._unicodeBidi; |
| noninherited_flags._page_break_before = other->noninherited_flags._page_break_before; |
| noninherited_flags._page_break_after = other->noninherited_flags._page_break_after; |
| noninherited_flags._page_break_inside = other->noninherited_flags._page_break_inside; |
| noninherited_flags.explicitInheritance = other->noninherited_flags.explicitInheritance; |
| if (m_svgStyle != other->m_svgStyle) |
| m_svgStyle.access()->copyNonInheritedFrom(other->m_svgStyle.get()); |
| ASSERT(zoom() == initialZoom()); |
| } |
| |
| bool RenderStyle::operator==(const RenderStyle& 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 RenderStyle::isStyleAvailable() const |
| { |
| return this != StyleResolver::styleNotYetAvailable(); |
| } |
| |
| static inline int pseudoBit(PseudoId pseudo) |
| { |
| return 1 << (pseudo - 1); |
| } |
| |
| bool RenderStyle::hasAnyPublicPseudoStyles() const |
| { |
| return PUBLIC_PSEUDOID_MASK & noninherited_flags._pseudoBits; |
| } |
| |
| bool RenderStyle::hasPseudoStyle(PseudoId pseudo) const |
| { |
| ASSERT(pseudo > NOPSEUDO); |
| ASSERT(pseudo < FIRST_INTERNAL_PSEUDOID); |
| return pseudoBit(pseudo) & noninherited_flags._pseudoBits; |
| } |
| |
| void RenderStyle::setHasPseudoStyle(PseudoId pseudo) |
| { |
| ASSERT(pseudo > NOPSEUDO); |
| ASSERT(pseudo < FIRST_INTERNAL_PSEUDOID); |
| noninherited_flags._pseudoBits |= pseudoBit(pseudo); |
| } |
| |
| bool RenderStyle::hasUniquePseudoStyle() const |
| { |
| if (!m_cachedPseudoStyles || styleType() != NOPSEUDO) |
| return false; |
| |
| for (size_t i = 0; i < m_cachedPseudoStyles->size(); ++i) { |
| RenderStyle* pseudoStyle = m_cachedPseudoStyles->at(i).get(); |
| if (pseudoStyle->unique()) |
| return true; |
| } |
| |
| return false; |
| } |
| |
| RenderStyle* RenderStyle::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) { |
| RenderStyle* pseudoStyle = m_cachedPseudoStyles->at(i).get(); |
| if (pseudoStyle->styleType() == pid) |
| return pseudoStyle; |
| } |
| |
| return 0; |
| } |
| |
| RenderStyle* RenderStyle::addCachedPseudoStyle(PassRefPtr<RenderStyle> pseudo) |
| { |
| if (!pseudo) |
| return 0; |
| |
| ASSERT(pseudo->styleType() > NOPSEUDO); |
| |
| RenderStyle* result = pseudo.get(); |
| |
| if (!m_cachedPseudoStyles) |
| m_cachedPseudoStyles = adoptPtr(new PseudoStyleCache); |
| |
| m_cachedPseudoStyles->append(pseudo); |
| |
| return result; |
| } |
| |
| void RenderStyle::removeCachedPseudoStyle(PseudoId pid) |
| { |
| if (!m_cachedPseudoStyles) |
| return; |
| for (size_t i = 0; i < m_cachedPseudoStyles->size(); ++i) { |
| RenderStyle* pseudoStyle = m_cachedPseudoStyles->at(i).get(); |
| if (pseudoStyle->styleType() == pid) { |
| m_cachedPseudoStyles->remove(i); |
| return; |
| } |
| } |
| } |
| |
| bool RenderStyle::inheritedNotEqual(const RenderStyle* other) const |
| { |
| return inherited_flags != other->inherited_flags |
| || inherited != other->inherited |
| || m_svgStyle->inheritedNotEqual(other->m_svgStyle.get()) |
| || rareInheritedData != other->rareInheritedData; |
| } |
| |
| bool RenderStyle::inheritedDataShared(const RenderStyle* 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 positionedObjectMoved(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; |
| } |
| |
| StyleDifference RenderStyle::diff(const RenderStyle* other, unsigned& changedContextSensitiveProperties) const |
| { |
| changedContextSensitiveProperties = ContextSensitivePropertyNone; |
| |
| StyleDifference svgChange = StyleDifferenceEqual; |
| if (m_svgStyle != other->m_svgStyle) { |
| svgChange = m_svgStyle->diff(other->m_svgStyle.get()); |
| if (svgChange == StyleDifferenceLayout) |
| return svgChange; |
| } |
| |
| 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 StyleDifferenceLayout; |
| |
| if (m_box->verticalAlign() != other->m_box->verticalAlign() || noninherited_flags._vertical_align != other->noninherited_flags._vertical_align) |
| return StyleDifferenceLayout; |
| |
| if (m_box->boxSizing() != other->m_box->boxSizing()) |
| return StyleDifferenceLayout; |
| |
| if (surround->margin != other->surround->margin) |
| return StyleDifferenceLayout; |
| |
| if (surround->padding != other->surround->padding) |
| return StyleDifferenceLayout; |
| |
| 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) |
| return StyleDifferenceLayout; |
| |
| if (rareNonInheritedData->m_regionFragment != other->rareNonInheritedData->m_regionFragment) |
| return StyleDifferenceLayout; |
| |
| if (rareNonInheritedData->m_wrapFlow != other->rareNonInheritedData->m_wrapFlow |
| || rareNonInheritedData->m_wrapThrough != other->rareNonInheritedData->m_wrapThrough |
| || rareNonInheritedData->m_shapeMargin != other->rareNonInheritedData->m_shapeMargin |
| || rareNonInheritedData->m_shapePadding != other->rareNonInheritedData->m_shapePadding) |
| return StyleDifferenceLayout; |
| |
| if (rareNonInheritedData->m_deprecatedFlexibleBox.get() != other->rareNonInheritedData->m_deprecatedFlexibleBox.get() |
| && *rareNonInheritedData->m_deprecatedFlexibleBox.get() != *other->rareNonInheritedData->m_deprecatedFlexibleBox.get()) |
| return StyleDifferenceLayout; |
| |
| if (rareNonInheritedData->m_flexibleBox.get() != other->rareNonInheritedData->m_flexibleBox.get() |
| && *rareNonInheritedData->m_flexibleBox.get() != *other->rareNonInheritedData->m_flexibleBox.get()) |
| return StyleDifferenceLayout; |
| if (rareNonInheritedData->m_order != other->rareNonInheritedData->m_order |
| || 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) |
| return StyleDifferenceLayout; |
| |
| // FIXME: We should add an optimized form of layout that just recomputes visual overflow. |
| if (!rareNonInheritedData->shadowDataEquivalent(*other->rareNonInheritedData.get())) |
| return StyleDifferenceLayout; |
| |
| if (!rareNonInheritedData->reflectionDataEquivalent(*other->rareNonInheritedData.get())) |
| return StyleDifferenceLayout; |
| |
| if (rareNonInheritedData->m_multiCol.get() != other->rareNonInheritedData->m_multiCol.get() |
| && *rareNonInheritedData->m_multiCol.get() != *other->rareNonInheritedData->m_multiCol.get()) |
| return StyleDifferenceLayout; |
| |
| if (rareNonInheritedData->m_transform.get() != other->rareNonInheritedData->m_transform.get() |
| && *rareNonInheritedData->m_transform.get() != *other->rareNonInheritedData->m_transform.get()) { |
| // Don't return early here; instead take note of the type of |
| // change, and deal with it when looking at compositing. |
| changedContextSensitiveProperties |= ContextSensitivePropertyTransform; |
| } |
| |
| if (rareNonInheritedData->m_grid.get() != other->rareNonInheritedData->m_grid.get() |
| || rareNonInheritedData->m_gridItem.get() != other->rareNonInheritedData->m_gridItem.get()) |
| return StyleDifferenceLayout; |
| |
| if (rareNonInheritedData->m_shapeInside != other->rareNonInheritedData->m_shapeInside) |
| return StyleDifferenceLayout; |
| } |
| |
| if (rareInheritedData.get() != other->rareInheritedData.get()) { |
| if (rareInheritedData->highlight != other->rareInheritedData->highlight |
| || rareInheritedData->indent != other->rareInheritedData->indent |
| || 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->locale != other->rareInheritedData->locale |
| || rareInheritedData->m_rubyPosition != other->rareInheritedData->m_rubyPosition |
| || rareInheritedData->textEmphasisMark != other->rareInheritedData->textEmphasisMark |
| || rareInheritedData->textEmphasisPosition != other->rareInheritedData->textEmphasisPosition |
| || rareInheritedData->textEmphasisCustomMark != other->rareInheritedData->textEmphasisCustomMark |
| || rareInheritedData->m_textAlignLast != other->rareInheritedData->m_textAlignLast |
| || rareInheritedData->m_textOrientation != other->rareInheritedData->m_textOrientation |
| || rareInheritedData->m_tabSize != other->rareInheritedData->m_tabSize |
| || rareInheritedData->m_lineBoxContain != other->rareInheritedData->m_lineBoxContain |
| || rareInheritedData->m_lineGrid != other->rareInheritedData->m_lineGrid |
| || rareInheritedData->m_lineSnap != other->rareInheritedData->m_lineSnap |
| || rareInheritedData->m_lineAlign != other->rareInheritedData->m_lineAlign |
| || rareInheritedData->listStyleImage != other->rareInheritedData->listStyleImage) |
| return StyleDifferenceLayout; |
| |
| if (!rareInheritedData->shadowDataEquivalent(*other->rareInheritedData.get())) |
| return StyleDifferenceLayout; |
| |
| if (textStrokeWidth() != other->textStrokeWidth()) |
| return StyleDifferenceLayout; |
| } |
| |
| if (visual->m_textAutosizingMultiplier != other->visual->m_textAutosizingMultiplier) |
| return StyleDifferenceLayout; |
| |
| 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 |
| || inherited_flags._box_direction != other->inherited_flags._box_direction |
| || inherited_flags.m_rtlOrdering != other->inherited_flags.m_rtlOrdering |
| || noninherited_flags._position != other->noninherited_flags._position |
| || noninherited_flags._floating != other->noninherited_flags._floating |
| || noninherited_flags._originalDisplay != other->noninherited_flags._originalDisplay) |
| return StyleDifferenceLayout; |
| |
| |
| if (((int)noninherited_flags._effectiveDisplay) >= TABLE) { |
| 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._table_layout != other->noninherited_flags._table_layout) |
| return StyleDifferenceLayout; |
| |
| // 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 StyleDifferenceLayout; |
| } |
| |
| 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 StyleDifferenceLayout; |
| } |
| |
| if (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 |
| || noninherited_flags._clear != other->noninherited_flags._clear |
| || noninherited_flags._unicodeBidi != other->noninherited_flags._unicodeBidi) |
| return StyleDifferenceLayout; |
| |
| // Check block flow direction. |
| if (inherited_flags.m_writingMode != other->inherited_flags.m_writingMode) |
| return StyleDifferenceLayout; |
| |
| // Check text combine mode. |
| if (rareNonInheritedData->m_textCombine != other->rareNonInheritedData->m_textCombine) |
| return StyleDifferenceLayout; |
| |
| // Overflow returns a layout hint. |
| if (noninherited_flags._overflowX != other->noninherited_flags._overflowX |
| || noninherited_flags._overflowY != other->noninherited_flags._overflowY) |
| return StyleDifferenceLayout; |
| |
| // 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 StyleDifferenceLayout; |
| |
| // 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 StyleDifferenceLayout; |
| |
| if ((visibility() == COLLAPSE) != (other->visibility() == COLLAPSE)) |
| return StyleDifferenceLayout; |
| |
| if ((rareNonInheritedData->opacity == 1 && other->rareNonInheritedData->opacity < 1) |
| || (rareNonInheritedData->opacity < 1 && other->rareNonInheritedData->opacity == 1)) { |
| // 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 StyleDifferenceLayout; |
| } |
| |
| if (!QuotesData::equals(rareInheritedData->quotes.get(), other->rareInheritedData->quotes.get())) |
| return StyleDifferenceLayout; |
| |
| // SVGRenderStyle::diff() might have returned StyleDifferenceRepaint, eg. if fill changes. |
| // If eg. the font-size changed at the same time, we're not allowed to return StyleDifferenceRepaint, |
| // but have to return StyleDifferenceLayout, that's why this if branch comes after all branches |
| // that are relevant for SVG and might return StyleDifferenceLayout. |
| if (svgChange != StyleDifferenceEqual) |
| return svgChange; |
| |
| // Make sure these left/top/right/bottom checks stay below all layout checks and above |
| // all visible checks. |
| if (position() != StaticPosition) { |
| if (surround->offset != other->surround->offset) { |
| // Optimize for the case where a positioned layer is moving but not changing size. |
| if (position() == AbsolutePosition && positionedObjectMoved(surround->offset, other->surround->offset, m_box->width())) |
| |
| return StyleDifferenceLayoutPositionedMovementOnly; |
| |
| // 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). |
| return StyleDifferenceLayout; |
| } else if (m_box->zIndex() != other->m_box->zIndex() || m_box->hasAutoZIndex() != other->m_box->hasAutoZIndex() |
| || visual->clip != other->visual->clip || visual->hasClip != other->visual->hasClip) |
| return StyleDifferenceRepaintLayer; |
| } |
| |
| if (RuntimeEnabledFeatures::cssCompositingEnabled()) |
| if (rareNonInheritedData->m_effectiveBlendMode != other->rareNonInheritedData->m_effectiveBlendMode) |
| return StyleDifferenceRepaintLayer; |
| |
| if (rareNonInheritedData->opacity != other->rareNonInheritedData->opacity) { |
| // Don't return early here; instead take note of the type of change, |
| // and deal with it when looking at compositing. |
| changedContextSensitiveProperties |= ContextSensitivePropertyOpacity; |
| } |
| |
| if (rareNonInheritedData->m_filter.get() != other->rareNonInheritedData->m_filter.get() |
| && *rareNonInheritedData->m_filter.get() != *other->rareNonInheritedData->m_filter.get()) { |
| // Don't return early here; instead take note of the type of change, |
| // and deal with it when looking at compositing. |
| changedContextSensitiveProperties |= ContextSensitivePropertyFilter; |
| } |
| |
| if (rareNonInheritedData->m_mask != other->rareNonInheritedData->m_mask |
| || rareNonInheritedData->m_maskBoxImage != other->rareNonInheritedData->m_maskBoxImage) |
| return StyleDifferenceRepaintLayer; |
| |
| 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 != other->surround->border |
| || *m_background.get() != *other->m_background.get() |
| || rareInheritedData->userModify != other->rareInheritedData->userModify |
| || rareInheritedData->userSelect != other->rareInheritedData->userSelect |
| || rareNonInheritedData->userDrag != other->rareNonInheritedData->userDrag |
| || rareNonInheritedData->m_borderFit != other->rareNonInheritedData->m_borderFit |
| || rareNonInheritedData->m_objectFit != other->rareNonInheritedData->m_objectFit |
| || rareInheritedData->m_imageRendering != other->rareInheritedData->m_imageRendering) |
| return StyleDifferenceRepaint; |
| |
| // FIXME: The current spec is being reworked to remove dependencies between exclusions and affected |
| // content. There's a proposal to use floats instead. In that case, wrap-shape should actually relayout |
| // the parent container. For sure, I will have to revisit this code, but for now I've added this in order |
| // to avoid having diff() == StyleDifferenceEqual where wrap-shapes actually differ. |
| // Tracking bug: https://bugs.webkit.org/show_bug.cgi?id=62991 |
| if (rareNonInheritedData->m_shapeOutside != other->rareNonInheritedData->m_shapeOutside) |
| return StyleDifferenceRepaint; |
| |
| if (rareNonInheritedData->m_clipPath != other->rareNonInheritedData->m_clipPath) |
| return StyleDifferenceRepaint; |
| |
| if (rareNonInheritedData.get() != other->rareNonInheritedData.get()) { |
| if (rareNonInheritedData->m_transformStyle3D != other->rareNonInheritedData->m_transformStyle3D |
| || rareNonInheritedData->m_backfaceVisibility != other->rareNonInheritedData->m_backfaceVisibility |
| || rareNonInheritedData->m_perspective != other->rareNonInheritedData->m_perspective |
| || rareNonInheritedData->m_perspectiveOriginX != other->rareNonInheritedData->m_perspectiveOriginX |
| || rareNonInheritedData->m_perspectiveOriginY != other->rareNonInheritedData->m_perspectiveOriginY) |
| return StyleDifferenceRecompositeLayer; |
| } |
| |
| if (inherited->color != other->inherited->color |
| || inherited_flags._text_decorations != other->inherited_flags._text_decorations |
| || visual->textDecoration != other->visual->textDecoration |
| || rareNonInheritedData->m_textDecorationStyle != other->rareNonInheritedData->m_textDecorationStyle |
| || rareNonInheritedData->m_textDecorationColor != other->rareNonInheritedData->m_textDecorationColor |
| || rareInheritedData->textFillColor != other->rareInheritedData->textFillColor |
| || rareInheritedData->textStrokeColor != other->rareInheritedData->textStrokeColor |
| || rareInheritedData->textEmphasisColor != other->rareInheritedData->textEmphasisColor |
| || rareInheritedData->textEmphasisFill != other->rareInheritedData->textEmphasisFill) |
| return StyleDifferenceRepaintIfText; |
| |
| // 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 StyleDifferenceEqual; |
| } |
| |
| void RenderStyle::setClip(Length top, Length right, Length bottom, Length left) |
| { |
| StyleVisualData* data = visual.access(); |
| data->clip.m_top = top; |
| data->clip.m_right = right; |
| data->clip.m_bottom = bottom; |
| data->clip.m_left = left; |
| } |
| |
| void RenderStyle::addCursor(PassRefPtr<StyleImage> image, const IntPoint& hotSpot) |
| { |
| if (!rareInheritedData.access()->cursorData) |
| rareInheritedData.access()->cursorData = CursorList::create(); |
| rareInheritedData.access()->cursorData->append(CursorData(image, hotSpot)); |
| } |
| |
| void RenderStyle::setCursorList(PassRefPtr<CursorList> other) |
| { |
| rareInheritedData.access()->cursorData = other; |
| } |
| |
| void RenderStyle::setQuotes(PassRefPtr<QuotesData> q) |
| { |
| if (QuotesData::equals(rareInheritedData->quotes.get(), q.get())) |
| return; |
| rareInheritedData.access()->quotes = q; |
| } |
| |
| void RenderStyle::clearCursorList() |
| { |
| if (rareInheritedData->cursorData) |
| rareInheritedData.access()->cursorData = 0; |
| } |
| |
| void RenderStyle::clearContent() |
| { |
| if (rareNonInheritedData->m_content) |
| rareNonInheritedData.access()->m_content = nullptr; |
| } |
| |
| void RenderStyle::appendContent(PassOwnPtr<ContentData> contentData) |
| { |
| OwnPtr<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 RenderStyle::setContent(PassRefPtr<StyleImage> image, bool add) |
| { |
| if (!image) |
| return; |
| |
| if (add) { |
| appendContent(ContentData::create(image)); |
| return; |
| } |
| |
| rareNonInheritedData.access()->m_content = ContentData::create(image); |
| } |
| |
| void RenderStyle::setContent(const String& string, bool add) |
| { |
| OwnPtr<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 = static_cast<TextContentData*>(lastContent); |
| textContent->setText(textContent->text() + string); |
| } else |
| lastContent->setNext(ContentData::create(string)); |
| |
| return; |
| } |
| } |
| |
| content = ContentData::create(string); |
| } |
| |
| void RenderStyle::setContent(PassOwnPtr<CounterContent> counter, bool add) |
| { |
| if (!counter) |
| return; |
| |
| if (add) { |
| appendContent(ContentData::create(counter)); |
| return; |
| } |
| |
| rareNonInheritedData.access()->m_content = ContentData::create(counter); |
| } |
| |
| void RenderStyle::setContent(QuoteType quote, bool add) |
| { |
| if (add) { |
| appendContent(ContentData::create(quote)); |
| return; |
| } |
| |
| rareNonInheritedData.access()->m_content = ContentData::create(quote); |
| } |
| |
| BlendMode RenderStyle::blendMode() const |
| { |
| if (RuntimeEnabledFeatures::cssCompositingEnabled()) |
| return static_cast<BlendMode>(rareNonInheritedData->m_effectiveBlendMode); |
| return BlendModeNormal; |
| } |
| |
| void RenderStyle::setBlendMode(BlendMode v) |
| { |
| if (RuntimeEnabledFeatures::cssCompositingEnabled()) |
| rareNonInheritedData.access()->m_effectiveBlendMode = v; |
| } |
| |
| bool RenderStyle::hasBlendMode() const |
| { |
| if (RuntimeEnabledFeatures::cssCompositingEnabled()) |
| return static_cast<BlendMode>(rareNonInheritedData->m_effectiveBlendMode) != BlendModeNormal; |
| return false; |
| } |
| |
| inline bool requireTransformOrigin(const Vector<RefPtr<TransformOperation> >& transformOperations, RenderStyle::ApplyTransformOrigin applyOrigin) |
| { |
| // 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 != RenderStyle::IncludeTransformOrigin) |
| return false; |
| |
| unsigned size = transformOperations.size(); |
| for (unsigned i = 0; i < size; ++i) { |
| TransformOperation::OperationType type = transformOperations[i]->getOperationType(); |
| if (type != TransformOperation::TranslateX |
| && type != TransformOperation::TranslateY |
| && type != TransformOperation::Translate |
| && type != TransformOperation::TranslateZ |
| && type != TransformOperation::Translate3D) |
| return true; |
| } |
| |
| return false; |
| } |
| |
| void RenderStyle::applyTransform(TransformationMatrix& transform, const LayoutSize& borderBoxSize, ApplyTransformOrigin applyOrigin) const |
| { |
| applyTransform(transform, FloatRect(FloatPoint(), borderBoxSize), applyOrigin); |
| } |
| |
| void RenderStyle::applyTransform(TransformationMatrix& transform, const FloatRect& boundingBox, ApplyTransformOrigin applyOrigin) const |
| { |
| const Vector<RefPtr<TransformOperation> >& transformOperations = rareNonInheritedData->m_transform->m_operations.operations(); |
| bool applyTransformOrigin = requireTransformOrigin(transformOperations, applyOrigin); |
| |
| float offsetX = transformOriginX().type() == Percent ? boundingBox.x() : 0; |
| float offsetY = transformOriginY().type() == Percent ? boundingBox.y() : 0; |
| |
| if (applyTransformOrigin) { |
| transform.translate3d(floatValueForLength(transformOriginX(), boundingBox.width()) + offsetX, |
| floatValueForLength(transformOriginY(), boundingBox.height()) + offsetY, |
| transformOriginZ()); |
| } |
| |
| unsigned size = transformOperations.size(); |
| for (unsigned i = 0; i < size; ++i) |
| transformOperations[i]->apply(transform, boundingBox.size()); |
| |
| if (applyTransformOrigin) { |
| transform.translate3d(-floatValueForLength(transformOriginX(), boundingBox.width()) - offsetX, |
| -floatValueForLength(transformOriginY(), boundingBox.height()) - offsetY, |
| -transformOriginZ()); |
| } |
| } |
| |
| void RenderStyle::setTextShadow(PassOwnPtr<ShadowData> shadowData, bool add) |
| { |
| ASSERT(!shadowData || (!shadowData->spread() && shadowData->style() == Normal)); |
| |
| StyleRareInheritedData* rareData = rareInheritedData.access(); |
| if (!add) { |
| rareData->textShadow = shadowData; |
| return; |
| } |
| |
| shadowData->setNext(rareData->textShadow.release()); |
| rareData->textShadow = shadowData; |
| } |
| |
| void RenderStyle::setBoxShadow(PassOwnPtr<ShadowData> shadowData, bool add) |
| { |
| StyleRareNonInheritedData* rareData = rareNonInheritedData.access(); |
| if (!add) { |
| rareData->m_boxShadow = shadowData; |
| return; |
| } |
| |
| shadowData->setNext(rareData->m_boxShadow.release()); |
| rareData->m_boxShadow = shadowData; |
| } |
| |
| static RoundedRect::Radii calcRadiiFor(const BorderData& border, IntSize size, RenderView* renderView) |
| { |
| return RoundedRect::Radii( |
| IntSize(valueForLength(border.topLeft().width(), size.width(), renderView), |
| valueForLength(border.topLeft().height(), size.height(), renderView)), |
| IntSize(valueForLength(border.topRight().width(), size.width(), renderView), |
| valueForLength(border.topRight().height(), size.height(), renderView)), |
| IntSize(valueForLength(border.bottomLeft().width(), size.width(), renderView), |
| valueForLength(border.bottomLeft().height(), size.height(), renderView)), |
| IntSize(valueForLength(border.bottomRight().width(), size.width(), renderView), |
| valueForLength(border.bottomRight().height(), size.height(), renderView))); |
| } |
| |
| static float calcConstraintScaleFor(const IntRect& rect, const RoundedRect::Radii& radii) |
| { |
| // Constrain corner radii using CSS3 rules: |
| // http://www.w3.org/TR/css3-background/#the-border-radius |
| |
| float factor = 1; |
| unsigned radiiSum; |
| |
| // top |
| radiiSum = static_cast<unsigned>(radii.topLeft().width()) + static_cast<unsigned>(radii.topRight().width()); // Casts to avoid integer overflow. |
| if (radiiSum > static_cast<unsigned>(rect.width())) |
| factor = min(static_cast<float>(rect.width()) / radiiSum, factor); |
| |
| // bottom |
| radiiSum = static_cast<unsigned>(radii.bottomLeft().width()) + static_cast<unsigned>(radii.bottomRight().width()); |
| if (radiiSum > static_cast<unsigned>(rect.width())) |
| factor = min(static_cast<float>(rect.width()) / radiiSum, factor); |
| |
| // left |
| radiiSum = static_cast<unsigned>(radii.topLeft().height()) + static_cast<unsigned>(radii.bottomLeft().height()); |
| if (radiiSum > static_cast<unsigned>(rect.height())) |
| factor = min(static_cast<float>(rect.height()) / radiiSum, factor); |
| |
| // right |
| radiiSum = static_cast<unsigned>(radii.topRight().height()) + static_cast<unsigned>(radii.bottomRight().height()); |
| if (radiiSum > static_cast<unsigned>(rect.height())) |
| factor = min(static_cast<float>(rect.height()) / radiiSum, factor); |
| |
| ASSERT(factor <= 1); |
| return factor; |
| } |
| |
| StyleImage* RenderStyle::listStyleImage() const { return rareInheritedData->listStyleImage.get(); } |
| void RenderStyle::setListStyleImage(PassRefPtr<StyleImage> v) |
| { |
| if (rareInheritedData->listStyleImage != v) |
| rareInheritedData.access()->listStyleImage = v; |
| } |
| |
| StyleColor RenderStyle::color() const { return inherited->color; } |
| StyleColor RenderStyle::visitedLinkColor() const { return inherited->visitedLinkColor; } |
| void RenderStyle::setColor(const StyleColor& v) { SET_VAR(inherited, color, v); } |
| void RenderStyle::setVisitedLinkColor(const StyleColor& v) { SET_VAR(inherited, visitedLinkColor, v); } |
| |
| short RenderStyle::horizontalBorderSpacing() const { return inherited->horizontal_border_spacing; } |
| short RenderStyle::verticalBorderSpacing() const { return inherited->vertical_border_spacing; } |
| void RenderStyle::setHorizontalBorderSpacing(short v) { SET_VAR(inherited, horizontal_border_spacing, v); } |
| void RenderStyle::setVerticalBorderSpacing(short v) { SET_VAR(inherited, vertical_border_spacing, v); } |
| |
| RoundedRect RenderStyle::getRoundedBorderFor(const LayoutRect& borderRect, RenderView* renderView, bool includeLogicalLeftEdge, bool includeLogicalRightEdge) const |
| { |
| IntRect snappedBorderRect(pixelSnappedIntRect(borderRect)); |
| RoundedRect roundedRect(snappedBorderRect); |
| if (hasBorderRadius()) { |
| RoundedRect::Radii radii = calcRadiiFor(surround->border, snappedBorderRect.size(), renderView); |
| radii.scale(calcConstraintScaleFor(snappedBorderRect, radii)); |
| roundedRect.includeLogicalEdges(radii, isHorizontalWritingMode(), includeLogicalLeftEdge, includeLogicalRightEdge); |
| } |
| return roundedRect; |
| } |
| |
| RoundedRect RenderStyle::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, topWidth, bottomWidth, leftWidth, rightWidth, includeLogicalLeftEdge, includeLogicalRightEdge); |
| } |
| |
| RoundedRect RenderStyle::getRoundedInnerBorderFor(const LayoutRect& borderRect, |
| int topWidth, int bottomWidth, int leftWidth, int rightWidth, bool includeLogicalLeftEdge, bool includeLogicalRightEdge) const |
| { |
| LayoutRect innerRect(borderRect.x() + leftWidth, |
| borderRect.y() + topWidth, |
| borderRect.width() - leftWidth - rightWidth, |
| borderRect.height() - topWidth - bottomWidth); |
| |
| RoundedRect roundedRect(pixelSnappedIntRect(innerRect)); |
| |
| if (hasBorderRadius()) { |
| RoundedRect::Radii radii = getRoundedBorderFor(borderRect).radii(); |
| radii.shrink(topWidth, bottomWidth, leftWidth, rightWidth); |
| roundedRect.includeLogicalEdges(radii, isHorizontalWritingMode(), includeLogicalLeftEdge, includeLogicalRightEdge); |
| } |
| return roundedRect; |
| } |
| |
| static bool allLayersAreFixed(const FillLayer* layer) |
| { |
| bool allFixed = true; |
| |
| for (const FillLayer* currLayer = layer; currLayer; currLayer = currLayer->next()) |
| allFixed &= (currLayer->image() && currLayer->attachment() == FixedBackgroundAttachment); |
| |
| return layer && allFixed; |
| } |
| |
| bool RenderStyle::hasEntirelyFixedBackground() const |
| { |
| return allLayersAreFixed(backgroundLayers()); |
| } |
| |
| const CounterDirectiveMap* RenderStyle::counterDirectives() const |
| { |
| return rareNonInheritedData->m_counterDirectives.get(); |
| } |
| |
| CounterDirectiveMap& RenderStyle::accessCounterDirectives() |
| { |
| OwnPtr<CounterDirectiveMap>& map = rareNonInheritedData.access()->m_counterDirectives; |
| if (!map) |
| map = adoptPtr(new CounterDirectiveMap); |
| return *map; |
| } |
| |
| const CounterDirectives RenderStyle::getCounterDirectives(const AtomicString& identifier) const |
| { |
| if (const CounterDirectiveMap* directives = counterDirectives()) |
| return directives->get(identifier); |
| return CounterDirectives(); |
| } |
| |
| const AtomicString& RenderStyle::hyphenString() const |
| { |
| const AtomicString& hyphenationString = rareInheritedData.get()->hyphenationString; |
| if (!hyphenationString.isNull()) |
| return hyphenationString; |
| |
| // FIXME: This should depend on locale. |
| DEFINE_STATIC_LOCAL(AtomicString, hyphenMinusString, (&hyphenMinus, 1)); |
| DEFINE_STATIC_LOCAL(AtomicString, hyphenString, (&hyphen, 1)); |
| return font().primaryFontHasGlyphForCharacter(hyphen) ? hyphenString : hyphenMinusString; |
| } |
| |
| const AtomicString& RenderStyle::textEmphasisMarkString() const |
| { |
| switch (textEmphasisMark()) { |
| case TextEmphasisMarkNone: |
| return nullAtom; |
| case TextEmphasisMarkCustom: |
| return textEmphasisCustomMark(); |
| case TextEmphasisMarkDot: { |
| DEFINE_STATIC_LOCAL(AtomicString, filledDotString, (&bullet, 1)); |
| DEFINE_STATIC_LOCAL(AtomicString, openDotString, (&whiteBullet, 1)); |
| return textEmphasisFill() == TextEmphasisFillFilled ? filledDotString : openDotString; |
| } |
| case TextEmphasisMarkCircle: { |
| DEFINE_STATIC_LOCAL(AtomicString, filledCircleString, (&blackCircle, 1)); |
| DEFINE_STATIC_LOCAL(AtomicString, openCircleString, (&whiteCircle, 1)); |
| return textEmphasisFill() == TextEmphasisFillFilled ? filledCircleString : openCircleString; |
| } |
| case TextEmphasisMarkDoubleCircle: { |
| DEFINE_STATIC_LOCAL(AtomicString, filledDoubleCircleString, (&fisheye, 1)); |
| DEFINE_STATIC_LOCAL(AtomicString, openDoubleCircleString, (&bullseye, 1)); |
| return textEmphasisFill() == TextEmphasisFillFilled ? filledDoubleCircleString : openDoubleCircleString; |
| } |
| case TextEmphasisMarkTriangle: { |
| DEFINE_STATIC_LOCAL(AtomicString, filledTriangleString, (&blackUpPointingTriangle, 1)); |
| DEFINE_STATIC_LOCAL(AtomicString, openTriangleString, (&whiteUpPointingTriangle, 1)); |
| return textEmphasisFill() == TextEmphasisFillFilled ? filledTriangleString : openTriangleString; |
| } |
| case TextEmphasisMarkSesame: { |
| DEFINE_STATIC_LOCAL(AtomicString, filledSesameString, (&sesameDot, 1)); |
| DEFINE_STATIC_LOCAL(AtomicString, openSesameString, (&whiteSesameDot, 1)); |
| return textEmphasisFill() == TextEmphasisFillFilled ? filledSesameString : openSesameString; |
| } |
| case TextEmphasisMarkAuto: |
| ASSERT_NOT_REACHED(); |
| return nullAtom; |
| } |
| |
| ASSERT_NOT_REACHED(); |
| return nullAtom; |
| } |
| |
| void RenderStyle::adjustAnimations() |
| { |
| CSSAnimationDataList* animationList = rareNonInheritedData->m_animations.get(); |
| if (!animationList) |
| return; |
| |
| // Get rid of empty animations and anything beyond them |
| for (size_t i = 0; i < animationList->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() |
| { |
| CSSAnimationDataList* transitionList = rareNonInheritedData->m_transitions.get(); |
| if (!transitionList) |
| return; |
| |
| // Get rid of empty transitions and anything beyond them |
| for (size_t i = 0; i < transitionList->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 very 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() == transitionList->animation(j)->property()) { |
| // toss i |
| transitionList->remove(i); |
| j = i; |
| } |
| } |
| } |
| } |
| |
| CSSAnimationDataList* RenderStyle::accessAnimations() |
| { |
| if (!rareNonInheritedData.access()->m_animations) |
| rareNonInheritedData.access()->m_animations = adoptPtr(new CSSAnimationDataList()); |
| return rareNonInheritedData->m_animations.get(); |
| } |
| |
| CSSAnimationDataList* RenderStyle::accessTransitions() |
| { |
| if (!rareNonInheritedData.access()->m_transitions) |
| rareNonInheritedData.access()->m_transitions = adoptPtr(new CSSAnimationDataList()); |
| return rareNonInheritedData->m_transitions.get(); |
| } |
| |
| const CSSAnimationData* RenderStyle::transitionForProperty(CSSPropertyID property) const |
| { |
| if (transitions()) { |
| for (size_t i = 0; i < transitions()->size(); ++i) { |
| const CSSAnimationData* p = transitions()->animation(i); |
| if (p->animationMode() == CSSAnimationData::AnimateAll || p->property() == property) { |
| return p; |
| } |
| } |
| } |
| return 0; |
| } |
| |
| const Font& RenderStyle::font() const { return inherited->font; } |
| const FontMetrics& RenderStyle::fontMetrics() const { return inherited->font.fontMetrics(); } |
| const FontDescription& RenderStyle::fontDescription() const { return inherited->font.fontDescription(); } |
| float RenderStyle::specifiedFontSize() const { return fontDescription().specifiedSize(); } |
| float RenderStyle::computedFontSize() const { return fontDescription().computedSize(); } |
| int RenderStyle::fontSize() const { return inherited->font.pixelSize(); } |
| |
| float RenderStyle::wordSpacing() const { return inherited->font.wordSpacing(); } |
| float RenderStyle::letterSpacing() const { return inherited->font.letterSpacing(); } |
| |
| bool RenderStyle::setFontDescription(const FontDescription& v) |
| { |
| if (inherited->font.fontDescription() != v) { |
| inherited.access()->font = Font(v, inherited->font.letterSpacing(), inherited->font.wordSpacing()); |
| return true; |
| } |
| return false; |
| } |
| |
| Length RenderStyle::specifiedLineHeight() const { return inherited->line_height; } |
| Length RenderStyle::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 RenderStyle::setLineHeight(Length specifiedLineHeight) { SET_VAR(inherited, line_height, specifiedLineHeight); } |
| |
| int RenderStyle::computedLineHeight(RenderView* renderView) const |
| { |
| const Length& lh = lineHeight(); |
| |
| // Negative value means the line height is not set. Use the font's built-in spacing. |
| if (lh.isNegative()) |
| return fontMetrics().lineSpacing(); |
| |
| if (lh.isPercent()) |
| return minimumValueForLength(lh, fontSize()); |
| |
| if (lh.isViewportPercentage()) |
| return valueForLength(lh, 0, renderView); |
| |
| return lh.value(); |
| } |
| |
| void RenderStyle::setWordSpacing(float v) { inherited.access()->font.setWordSpacing(v); } |
| void RenderStyle::setLetterSpacing(float v) { inherited.access()->font.setLetterSpacing(v); } |
| |
| 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 = min(maximumAllowedFontSize, size); |
| |
| FontSelector* currentFontSelector = font().fontSelector(); |
| FontDescription desc(fontDescription()); |
| desc.setSpecifiedSize(size); |
| desc.setComputedSize(size); |
| |
| float multiplier = textAutosizingMultiplier(); |
| if (multiplier > 1) { |
| float autosizedFontSize = TextAutosizer::computeAutosizedFontSize(size, multiplier); |
| desc.setComputedSize(min(maximumAllowedFontSize, autosizedFontSize)); |
| } |
| |
| setFontDescription(desc); |
| font().update(currentFontSelector); |
| } |
| |
| void RenderStyle::getShadowExtent(const ShadowData* shadow, LayoutUnit &top, LayoutUnit &right, LayoutUnit &bottom, LayoutUnit &left) const |
| { |
| top = 0; |
| right = 0; |
| bottom = 0; |
| left = 0; |
| |
| for ( ; shadow; shadow = shadow->next()) { |
| if (shadow->style() == Inset) |
| continue; |
| int blurAndSpread = shadow->blur() + shadow->spread(); |
| |
| top = min<LayoutUnit>(top, shadow->y() - blurAndSpread); |
| right = max<LayoutUnit>(right, shadow->x() + blurAndSpread); |
| bottom = max<LayoutUnit>(bottom, shadow->y() + blurAndSpread); |
| left = min<LayoutUnit>(left, shadow->x() - blurAndSpread); |
| } |
| } |
| |
| LayoutBoxExtent RenderStyle::getShadowInsetExtent(const ShadowData* shadow) const |
| { |
| LayoutUnit top = 0; |
| LayoutUnit right = 0; |
| LayoutUnit bottom = 0; |
| LayoutUnit left = 0; |
| |
| for ( ; shadow; shadow = shadow->next()) { |
| if (shadow->style() == Normal) |
| continue; |
| int blurAndSpread = shadow->blur() + shadow->spread(); |
| top = max<LayoutUnit>(top, shadow->y() + blurAndSpread); |
| right = min<LayoutUnit>(right, shadow->x() - blurAndSpread); |
| bottom = min<LayoutUnit>(bottom, shadow->y() - blurAndSpread); |
| left = max<LayoutUnit>(left, shadow->x() + blurAndSpread); |
| } |
| |
| return LayoutBoxExtent(top, right, bottom, left); |
| } |
| |
| void RenderStyle::getShadowHorizontalExtent(const ShadowData* shadow, LayoutUnit &left, LayoutUnit &right) const |
| { |
| left = 0; |
| right = 0; |
| |
| for ( ; shadow; shadow = shadow->next()) { |
| if (shadow->style() == Inset) |
| continue; |
| int blurAndSpread = shadow->blur() + shadow->spread(); |
| |
| left = min<LayoutUnit>(left, shadow->x() - blurAndSpread); |
| right = max<LayoutUnit>(right, shadow->x() + blurAndSpread); |
| } |
| } |
| |
| void RenderStyle::getShadowVerticalExtent(const ShadowData* shadow, LayoutUnit &top, LayoutUnit &bottom) const |
| { |
| top = 0; |
| bottom = 0; |
| |
| for ( ; shadow; shadow = shadow->next()) { |
| if (shadow->style() == Inset) |
| continue; |
| int blurAndSpread = shadow->blur() + shadow->spread(); |
| |
| top = min<LayoutUnit>(top, shadow->y() - blurAndSpread); |
| bottom = max<LayoutUnit>(bottom, shadow->y() + blurAndSpread); |
| } |
| } |
| |
| StyleColor RenderStyle::colorIncludingFallback(int colorProperty, bool visitedLink) const |
| { |
| StyleColor result; |
| EBorderStyle borderStyle = BNONE; |
| switch (colorProperty) { |
| case CSSPropertyBackgroundColor: |
| return visitedLink ? visitedLinkBackgroundColor() : backgroundColor(); // Background color doesn't fall back. |
| 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 CSSPropertyWebkitColumnRuleColor: |
| result = visitedLink ? visitedLinkColumnRuleColor() : columnRuleColor(); |
| break; |
| case CSSPropertyTextDecorationColor: |
| // Text decoration color fallback is handled in RenderObject::decorationColor. |
| return visitedLink ? visitedLinkTextDecorationColor() : textDecorationColor(); |
| 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; |
| default: |
| ASSERT_NOT_REACHED(); |
| break; |
| } |
| |
| if (!result.isValid() && !result.isCurrentColor()) { |
| if (!visitedLink && (borderStyle == INSET || borderStyle == OUTSET || borderStyle == RIDGE || borderStyle == GROOVE)) |
| result.setRGB(238, 238, 238); |
| else |
| result = visitedLink ? visitedLinkColor() : color(); |
| } |
| return result; |
| } |
| |
| StyleColor RenderStyle::visitedDependentColor(int colorProperty) const |
| { |
| StyleColor unvisitedColor = colorIncludingFallback(colorProperty, false); |
| if (insideLink() != InsideVisitedLink) |
| return unvisitedColor; |
| |
| StyleColor visitedColor = colorIncludingFallback(colorProperty, true); |
| |
| // Text decoration color validity is preserved (checked in RenderObject::decorationColor). |
| if (colorProperty == CSSPropertyTextDecorationColor) |
| return visitedColor; |
| |
| // 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; |
| |
| // Unless the visitied color is 'currentColor'; take the alpha from the unvisited color, |
| // but get the RGB values from the visited color. |
| if (visitedColor.isCurrentColor()) |
| return visitedColor; |
| |
| return StyleColor(visitedColor.red(), visitedColor.green(), visitedColor.blue(), unvisitedColor.alpha()); |
| } |
| |
| const BorderValue& RenderStyle::borderBefore() const |
| { |
| switch (writingMode()) { |
| case TopToBottomWritingMode: |
| return borderTop(); |
| case BottomToTopWritingMode: |
| return borderBottom(); |
| case LeftToRightWritingMode: |
| return borderLeft(); |
| case RightToLeftWritingMode: |
| return borderRight(); |
| } |
| ASSERT_NOT_REACHED(); |
| return borderTop(); |
| } |
| |
| const BorderValue& RenderStyle::borderAfter() const |
| { |
| switch (writingMode()) { |
| case TopToBottomWritingMode: |
| return borderBottom(); |
| case BottomToTopWritingMode: |
| return borderTop(); |
| case LeftToRightWritingMode: |
| return borderRight(); |
| case RightToLeftWritingMode: |
| 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(); |
| } |
| |
| unsigned short RenderStyle::borderBeforeWidth() const |
| { |
| switch (writingMode()) { |
| case TopToBottomWritingMode: |
| return borderTopWidth(); |
| case BottomToTopWritingMode: |
| return borderBottomWidth(); |
| case LeftToRightWritingMode: |
| return borderLeftWidth(); |
| case RightToLeftWritingMode: |
| return borderRightWidth(); |
| } |
| ASSERT_NOT_REACHED(); |
| return borderTopWidth(); |
| } |
| |
| unsigned short RenderStyle::borderAfterWidth() const |
| { |
| switch (writingMode()) { |
| case TopToBottomWritingMode: |
| return borderBottomWidth(); |
| case BottomToTopWritingMode: |
| return borderTopWidth(); |
| case LeftToRightWritingMode: |
| return borderRightWidth(); |
| case RightToLeftWritingMode: |
| return borderLeftWidth(); |
| } |
| ASSERT_NOT_REACHED(); |
| return borderBottomWidth(); |
| } |
| |
| unsigned short RenderStyle::borderStartWidth() const |
| { |
| if (isHorizontalWritingMode()) |
| return isLeftToRightDirection() ? borderLeftWidth() : borderRightWidth(); |
| return isLeftToRightDirection() ? borderTopWidth() : borderBottomWidth(); |
| } |
| |
| unsigned short RenderStyle::borderEndWidth() const |
| { |
| if (isHorizontalWritingMode()) |
| return isLeftToRightDirection() ? borderRightWidth() : borderLeftWidth(); |
| return isLeftToRightDirection() ? borderBottomWidth() : borderTopWidth(); |
| } |
| |
| void RenderStyle::setMarginStart(Length margin) |
| { |
| if (isHorizontalWritingMode()) { |
| if (isLeftToRightDirection()) |
| setMarginLeft(margin); |
| else |
| setMarginRight(margin); |
| } else { |
| if (isLeftToRightDirection()) |
| setMarginTop(margin); |
| else |
| setMarginBottom(margin); |
| } |
| } |
| |
| void RenderStyle::setMarginEnd(Length margin) |
| { |
| if (isHorizontalWritingMode()) { |
| if (isLeftToRightDirection()) |
| setMarginRight(margin); |
| else |
| setMarginLeft(margin); |
| } else { |
| if (isLeftToRightDirection()) |
| setMarginBottom(margin); |
| else |
| setMarginTop(margin); |
| } |
| } |
| |
| TextEmphasisMark RenderStyle::textEmphasisMark() const |
| { |
| TextEmphasisMark mark = static_cast<TextEmphasisMark>(rareInheritedData->textEmphasisMark); |
| if (mark != TextEmphasisMarkAuto) |
| return mark; |
| |
| if (isHorizontalWritingMode()) |
| return TextEmphasisMarkDot; |
| |
| return TextEmphasisMarkSesame; |
| } |
| |
| Color RenderStyle::initialTapHighlightColor() |
| { |
| return RenderTheme::tapHighlightColor(); |
| } |
| |
| LayoutBoxExtent RenderStyle::imageOutsets(const NinePieceImage& image) const |
| { |
| return LayoutBoxExtent(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 RenderStyle::setBorderImageSource(PassRefPtr<StyleImage> image) |
| { |
| if (surround->border.m_image.image() == image.get()) |
| return; |
| surround.access()->border.m_image.setImage(image); |
| } |
| |
| void RenderStyle::setBorderImageSlices(LengthBox slices) |
| { |
| if (surround->border.m_image.imageSlices() == slices) |
| return; |
| surround.access()->border.m_image.setImageSlices(slices); |
| } |
| |
| void RenderStyle::setBorderImageWidth(LengthBox slices) |
| { |
| if (surround->border.m_image.borderSlices() == slices) |
| return; |
| surround.access()->border.m_image.setBorderSlices(slices); |
| } |
| |
| void RenderStyle::setBorderImageOutset(LengthBox outset) |
| { |
| if (surround->border.m_image.outset() == outset) |
| return; |
| surround.access()->border.m_image.setOutset(outset); |
| } |
| |
| ShapeValue* RenderStyle::initialShapeInside() |
| { |
| DEFINE_STATIC_LOCAL(RefPtr<ShapeValue>, sOutsideValue, (ShapeValue::createOutsideValue())); |
| return sOutsideValue.get(); |
| } |
| |
| } // namespace WebCore |
