Bug 281210 – Ignore legacy mstyle attributes (background, color, fontsize, fontstyle, fontweight) when CoreMathML is enabled

• Status: RESOLVED
• Resolution: CONFIGURATION CHANGED
• Component: MathML

[Frédéric Wang (:fredw)]

I guess it will be enough to make MathMLElement::hasPresentationalHintsForAttribute return false for these attributes when CoreMathML is enabled here:

https://searchfox.org/wubkat/rev/168430191bc069c153b23fdddfc818adea1f2992/Source/WebCore/mathml/MathMLElement.cpp#112

Test: https://wpt.fyi/results/mathml/relations/css-styling/attribute-mapping-001.html

[Ahmad Saleem]

Yes - I tested this yesterday and deleting them make us pass below WPT.

[Radar WebKit Bug Importer]

<rdar://problem/138099409>

[Ahmad Saleem]

I am assigning it to myself to do draft PR to get feedback.

[Eri]

I think this can be closed since we are already passing the test when CoreMathMLEnabled is on: https://searchfox.org/wubkat/source/LayoutTests/platform/glib/imported/w3c/web-platform-tests/mathml/relations/css-styling/attribute-mapping-001-expected.txt

The relevant code that gates this behaviour is here: https://searchfox.org/wubkat/rev/168430191bc069c153b23fdddfc818adea1f2992/Source/WebCore/mathml/MathMLElement.cpp#195

[Karl Dubost]

Thanks Eri.