[Webkit-unassigned] [Bug 54465] New: CSS selectors are applied to SVG shadow trees

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=54465

           Summary: CSS selectors are applied to SVG shadow trees
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: Mac OS X 10.5
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: SVG
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: koivisto at iki.fi
                CC: zimmermann at kde.org


This

CSSStyleSelector::SelectorMatch CSSStyleSelector::SelectorChecker::checkSelector(CSSSelector* sel, Element* e, HashSet<AtomicStringImpl*>* selectorAttrs, PseudoId& dynamicPseudo, bool isSubSelector, bool encounteredLink, RenderStyle* elementStyle, RenderStyle* elementParentStyle) const
{
#if ENABLE(SVG)
    // Spec: CSS2 selectors cannot be applied to the (conceptually) cloned DOM tree
    // because its contents are not part of the formal document structure.
    if (e->isSVGElement() && e->isShadowRoot())
        return SelectorFailsCompletely;
#endif

won't achieve what the comment claims. If the match succeed without reaching the root the selector will still get applied. We should not be running selector matching in the shadow tree at all.

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