[Shadow DOM] Needs @host rule for ShadowDOM styling
https://bugs.webkit.org/show_bug.cgi?id=88606
Reviewed by Hajime Morita.
Source/WebCore:
Implemented @host-@rules according to the shadow dom spec:
http://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html#host-at-rule
The design doc is:
https://docs.google.com/document/d/1P2yorchF8lci2sccr-mVSRf2dtvjKeiuyQWzCB2bEA8/edit
Test: fast/dom/shadow/athost-atrules.html
* css/CSSGrammar.y.in:
Added rules for parsing @host @-rules.
* css/CSSParser.cpp:
(WebCore::CSSParser::detectAtToken):
Added a new token "@host".
(WebCore::CSSParser::createHostRule):
Added a new method to create an @host @-rule, which is invoked from
(WebCore):
* css/CSSParser.h:
Added a declaration of the above new method: createHostRule.
* css/CSSPropertySourceData.h:
Added HOST_RULE to enum Type.
* css/RuleSet.cpp:
(WebCore::RuleData::RuleData):
Modified multiple bool arguments into one argument. Now it
uses combinations of values from enum AddRuleFlags.
(WebCore::RuleSet::addRule):
(WebCore::RuleSet::addRegionRule):
(WebCore::RuleSet::addStyleRule):
Updated according to the RuleData's change.
Modified to Invoke increaseSpecificity if the given rule is @host
@-rule.
(WebCore::RuleSet::addRulesFromSheet):
Invoked addHostRule if the given rule is @host @-rule.
* css/RuleSet.h:
(RuleData):
(WebCore::RuleData::increaseSpecificity):
Added a new method to increase selector's specificity. This method is
used to make @host @-rules' specificity larger than normal author
rules' specificity.
(RuleSet):
* css/StyleResolver.cpp:
(WebCore::makeRuleSet):
(WebCore::StyleResolver::addHostRule):
A wrapper method to invoke StyleScopeResolver::addHostRule. The method
is used to make only StyleResolver know an implementation detail about
class StyleScopeResolver.
(WebCore::StyleResolver::appendAuthorStylesheets):
Updated according to the RuleData's change.
(WebCore::StyleResolver::styleSharingCandidateMatchesHostRules):
A new method to find matched host rules when an element is given.
This method invokes
StyleScopeResolver::styleSharingCandidateMatchesHostRules to find
matched host rules.
(WebCore):
(WebCore::StyleResolver::matchHostRules):
A new method to find matched host rules when an element is given.
This method invokes StyleScopeResolver::matchHostRules to find
matched host rules.
(WebCore::StyleResolver::matchScopedAuthorRules):
Modified to invoke matchHostRules.
(WebCore::StyleResolver::locateSharedStyle):
Disable sibling style cache if the given element is a shadow host and
any @host @-rules are applied to the element.
* css/StyleResolver.h:
(WebCore::StyleResolver::ensureScopeResolver):
If no scopeResolver is created, create and return the instance.
If created, just return the instance.
(StyleResolver):
* css/StyleRule.cpp:
(WebCore::StyleRuleBase::reportMemoryUsage):
(WebCore::StyleRuleBase::destroy):
(WebCore::StyleRuleBase::copy):
(WebCore::StyleRuleBase::createCSSOMWrapper):
(WebCore::StyleRuleHost::StyleRuleHost):
Implemented class StyleRuleHost. The class is almost the same as
StyleRuleBlock except type.
(WebCore):
* css/StyleRule.h:
(WebCore::StyleRuleBase::isHostRule):
(StyleRuleHost):
(WebCore::StyleRuleHost::create):
(WebCore::StyleRuleHost::copy):
(WebCore):
* css/StyleScopeResolver.cpp:
(WebCore::StyleScopeResolver::ensureAtHostRuleSetFor):
A new method to create a new RuleSet for the given shadow root.
(WebCore):
(WebCore::StyleScopeResolver::atHostRuleSetFor):
A new private inline method to obtain @host @-rules declared in
the given shadow root.
(WebCore::StyleScopeResolver::addHostRule):
Added a new method to register @host @-rules with shadow roots.
(WebCore::StyleScopeResolver::styleSharingCandidateMatchesHostRules):
A new method to find whether any @host @-rules are applied to
the given host element.
(WebCore::StyleScopeResolver::matchHostRules):
A new method to find matched rules for the given host element.
(WebCore::StyleScopeResolver::reportMemoryUsage):
* css/StyleScopeResolver.h:
(WebCore):
(StyleScopeResolver):
* css/StyleSheetContents.cpp:
(WebCore::childRulesHaveFailedOrCanceledSubresources):
LayoutTests:
* fast/dom/shadow/athost-atrules-expected.txt: Added.
* fast/dom/shadow/athost-atrules.html: Added.
git-svn-id: http://svn.webkit.org/repository/webkit/trunk@132618 268f45cc-cd09-0410-ab3c-d52691b4dbfc
17 files changed
