Bug 230605 – Color keywords in override-color cause a crash

• Component: Text
• Status: RESOLVED FIXED

[Myles C. Maxfield]

Color keywords in override-color cause a crash

[Radar WebKit Bug Importer]

<rdar://problem/83389290>

[Myles C. Maxfield]

Looks like color keywords are idents, otherwise it's a color primitive value.

[Myles C. Maxfield]

    static void applyValueColor(BuilderState& builderState, CSSValue& value)
    {
        auto& primitiveValue = downcast<CSSPrimitiveValue>(value);
        if (primitiveValue.valueID() == CSSValueCurrentcolor) {
            applyInheritColor(builderState);
            return;
        }
        if (builderState.applyPropertyToRegularStyle())
            builderState.style().setColor(builderState.colorFromPrimitiveValue(primitiveValue, ForVisitedLink::No));
        if (builderState.applyPropertyToVisitedLinkStyle())
            builderState.style().setVisitedLinkColor(builderState.colorFromPrimitiveValue(primitiveValue, ForVisitedLink::Yes));
    }



- and -



Color BuilderState::colorFromPrimitiveValue(const CSSPrimitiveValue& value, ForVisitedLink forVisitedLink) const
{
    if (value.isRGBColor())
        return value.color();

    auto identifier = value.valueID();
    switch (identifier) {
    case CSSValueWebkitText:
        return document().textColor();
    case CSSValueWebkitLink:
        return (element() && element()->isLink() && forVisitedLink == ForVisitedLink::Yes) ? document().visitedLinkColor() : document().linkColor();
    case CSSValueWebkitActivelink:
        return document().activeLinkColor();
    case CSSValueWebkitFocusRingColor:
        return RenderTheme::singleton().focusRingColor(document().styleColorOptions(&m_style));
    case CSSValueCurrentcolor:
        return RenderStyle::currentColor();
    default:
        return StyleColor::colorFromKeyword(identifier, document().styleColorOptions(&m_style));
    }
}

[Myles C. Maxfield]

See: https://github.com/w3c/csswg-drafts/issues/6680

[Myles C. Maxfield]

Created attachment 439129 [details]
WIP, as if resolution needed to be done per-element

[Myles C. Maxfield]

Created attachment 439131 [details]
Patch

[EWS Watchlist]

This patch modifies the imported WPT tests. Please ensure that any changes on the tests (not coming from a WPT import) are exported to WPT. Please see https://trac.webkit.org/wiki/WPTExportProcess

[Myles C. Maxfield]

Committed r283053 (242113@main): <https://commits.webkit.org/242113@main>