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| 1 /* | 1 /* |
| 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) | 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) |
| 3 * (C) 2004-2005 Allan Sandfeld Jensen (kde@carewolf.com) | 3 * (C) 2004-2005 Allan Sandfeld Jensen (kde@carewolf.com) |
| 4 * Copyright (C) 2006, 2007 Nicholas Shanks (webkit@nickshanks.com) | 4 * Copyright (C) 2006, 2007 Nicholas Shanks (webkit@nickshanks.com) |
| 5 * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple Inc.
All rights reserved. | 5 * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple Inc.
All rights reserved. |
| 6 * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org> | 6 * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org> |
| 7 * Copyright (C) 2007, 2008 Eric Seidel <eric@webkit.org> | 7 * Copyright (C) 2007, 2008 Eric Seidel <eric@webkit.org> |
| 8 * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.t
orchmobile.com/) | 8 * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.t
orchmobile.com/) |
| 9 * Copyright (c) 2011, Code Aurora Forum. All rights reserved. | 9 * Copyright (c) 2011, Code Aurora Forum. All rights reserved. |
| 10 * Copyright (C) Research In Motion Limited 2011. All rights reserved. | 10 * Copyright (C) Research In Motion Limited 2011. All rights reserved. |
| (...skipping 19 matching lines...) Expand all Loading... |
| 30 #include "core/css/resolver/SharedStyleFinder.h" | 30 #include "core/css/resolver/SharedStyleFinder.h" |
| 31 | 31 |
| 32 #include "core/HTMLNames.h" | 32 #include "core/HTMLNames.h" |
| 33 #include "core/XMLNames.h" | 33 #include "core/XMLNames.h" |
| 34 #include "core/css/resolver/StyleResolver.h" | 34 #include "core/css/resolver/StyleResolver.h" |
| 35 #include "core/css/resolver/StyleResolverStats.h" | 35 #include "core/css/resolver/StyleResolverStats.h" |
| 36 #include "core/dom/ContainerNode.h" | 36 #include "core/dom/ContainerNode.h" |
| 37 #include "core/dom/Document.h" | 37 #include "core/dom/Document.h" |
| 38 #include "core/dom/ElementTraversal.h" | 38 #include "core/dom/ElementTraversal.h" |
| 39 #include "core/dom/Node.h" | 39 #include "core/dom/Node.h" |
| 40 #include "core/dom/NodeLayoutStyle.h" | 40 #include "core/dom/NodeComputedStyle.h" |
| 41 #include "core/dom/QualifiedName.h" | 41 #include "core/dom/QualifiedName.h" |
| 42 #include "core/dom/SpaceSplitString.h" | 42 #include "core/dom/SpaceSplitString.h" |
| 43 #include "core/dom/shadow/ElementShadow.h" | 43 #include "core/dom/shadow/ElementShadow.h" |
| 44 #include "core/dom/shadow/InsertionPoint.h" | 44 #include "core/dom/shadow/InsertionPoint.h" |
| 45 #include "core/html/HTMLElement.h" | 45 #include "core/html/HTMLElement.h" |
| 46 #include "core/html/HTMLInputElement.h" | 46 #include "core/html/HTMLInputElement.h" |
| 47 #include "core/html/HTMLOptGroupElement.h" | 47 #include "core/html/HTMLOptGroupElement.h" |
| 48 #include "core/html/HTMLOptionElement.h" | 48 #include "core/html/HTMLOptionElement.h" |
| 49 #include "core/layout/style/LayoutStyle.h" | 49 #include "core/layout/style/ComputedStyle.h" |
| 50 #include "core/svg/SVGElement.h" | 50 #include "core/svg/SVGElement.h" |
| 51 #include "wtf/HashSet.h" | 51 #include "wtf/HashSet.h" |
| 52 #include "wtf/text/AtomicString.h" | 52 #include "wtf/text/AtomicString.h" |
| 53 | 53 |
| 54 namespace blink { | 54 namespace blink { |
| 55 | 55 |
| 56 using namespace HTMLNames; | 56 using namespace HTMLNames; |
| 57 | 57 |
| 58 bool SharedStyleFinder::canShareStyleWithControl(Element& candidate) const | 58 bool SharedStyleFinder::canShareStyleWithControl(Element& candidate) const |
| 59 { | 59 { |
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| 191 return false; | 191 return false; |
| 192 } | 192 } |
| 193 return true; | 193 return true; |
| 194 } | 194 } |
| 195 | 195 |
| 196 bool SharedStyleFinder::canShareStyleWithElement(Element& candidate) const | 196 bool SharedStyleFinder::canShareStyleWithElement(Element& candidate) const |
| 197 { | 197 { |
| 198 if (element() == candidate) | 198 if (element() == candidate) |
| 199 return false; | 199 return false; |
| 200 Element* parent = candidate.parentOrShadowHostElement(); | 200 Element* parent = candidate.parentOrShadowHostElement(); |
| 201 const LayoutStyle* style = candidate.layoutStyle(); | 201 const ComputedStyle* style = candidate.computedStyle(); |
| 202 if (!style) | 202 if (!style) |
| 203 return false; | 203 return false; |
| 204 if (!style->isSharable()) | 204 if (!style->isSharable()) |
| 205 return false; | 205 return false; |
| 206 if (!parent) | 206 if (!parent) |
| 207 return false; | 207 return false; |
| 208 if (element().parentOrShadowHostElement()->layoutStyle() != parent->layoutSt
yle()) | 208 if (element().parentOrShadowHostElement()->computedStyle() != parent->comput
edStyle()) |
| 209 return false; | 209 return false; |
| 210 if (candidate.tagQName() != element().tagQName()) | 210 if (candidate.tagQName() != element().tagQName()) |
| 211 return false; | 211 return false; |
| 212 if (candidate.inlineStyle()) | 212 if (candidate.inlineStyle()) |
| 213 return false; | 213 return false; |
| 214 if (candidate.needsStyleRecalc()) | 214 if (candidate.needsStyleRecalc()) |
| 215 return false; | 215 return false; |
| 216 if (candidate.isSVGElement() && toSVGElement(candidate).animatedSMILStylePro
perties()) | 216 if (candidate.isSVGElement() && toSVGElement(candidate).animatedSMILStylePro
perties()) |
| 217 return false; | 217 return false; |
| 218 if (candidate.isLink() != element().isLink()) | 218 if (candidate.isLink() != element().isLink()) |
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| 301 } | 301 } |
| 302 | 302 |
| 303 bool SharedStyleFinder::matchesRuleSet(RuleSet* ruleSet) | 303 bool SharedStyleFinder::matchesRuleSet(RuleSet* ruleSet) |
| 304 { | 304 { |
| 305 if (!ruleSet) | 305 if (!ruleSet) |
| 306 return false; | 306 return false; |
| 307 ElementRuleCollector collector(m_context, m_styleResolver.selectorFilter()); | 307 ElementRuleCollector collector(m_context, m_styleResolver.selectorFilter()); |
| 308 return collector.hasAnyMatchingRules(ruleSet); | 308 return collector.hasAnyMatchingRules(ruleSet); |
| 309 } | 309 } |
| 310 | 310 |
| 311 LayoutStyle* SharedStyleFinder::findSharedStyle() | 311 ComputedStyle* SharedStyleFinder::findSharedStyle() |
| 312 { | 312 { |
| 313 INCREMENT_STYLE_STATS_COUNTER(m_styleResolver, sharedStyleLookups); | 313 INCREMENT_STYLE_STATS_COUNTER(m_styleResolver, sharedStyleLookups); |
| 314 | 314 |
| 315 if (!element().supportsStyleSharing()) | 315 if (!element().supportsStyleSharing()) |
| 316 return 0; | 316 return 0; |
| 317 | 317 |
| 318 // Cache whether context.element() is affected by any known class selectors. | 318 // Cache whether context.element() is affected by any known class selectors. |
| 319 m_elementAffectedByClassRules = element().hasClass() && classNamesAffectedBy
Rules(element().classNames()); | 319 m_elementAffectedByClassRules = element().hasClass() && classNamesAffectedBy
Rules(element().classNames()); |
| 320 | 320 |
| 321 Element* shareElement = findElementForStyleSharing(); | 321 Element* shareElement = findElementForStyleSharing(); |
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| 337 INCREMENT_STYLE_STATS_COUNTER(m_styleResolver, sharedStyleRejectedByUnco
mmonAttributeRules); | 337 INCREMENT_STYLE_STATS_COUNTER(m_styleResolver, sharedStyleRejectedByUnco
mmonAttributeRules); |
| 338 return 0; | 338 return 0; |
| 339 } | 339 } |
| 340 | 340 |
| 341 // Tracking child index requires unique style for each node. This may get se
t by the sibling rule match above. | 341 // Tracking child index requires unique style for each node. This may get se
t by the sibling rule match above. |
| 342 if (!element().parentElementOrShadowRoot()->childrenSupportStyleSharing()) { | 342 if (!element().parentElementOrShadowRoot()->childrenSupportStyleSharing()) { |
| 343 INCREMENT_STYLE_STATS_COUNTER(m_styleResolver, sharedStyleRejectedByPare
nt); | 343 INCREMENT_STYLE_STATS_COUNTER(m_styleResolver, sharedStyleRejectedByPare
nt); |
| 344 return 0; | 344 return 0; |
| 345 } | 345 } |
| 346 | 346 |
| 347 return shareElement->mutableLayoutStyle(); | 347 return shareElement->mutableComputedStyle(); |
| 348 } | 348 } |
| 349 | 349 |
| 350 } | 350 } |
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