[Webkit-unassigned] [Bug 161081] Accessibility of MathML links

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=161081

--- Comment #5 from chris fleizach <cfleizach at apple.com> ---
(In reply to comment #4)
> (In reply to comment #3)
> > Comment on attachment 286711 [details]
> > WIP Patch
> > 
> > View in context:
> > https://bugs.webkit.org/attachment.cgi?id=286711&action=review
> > 
> > > Source/WebCore/accessibility/AccessibilityMathMLElement.cpp:62
> > > +    if (node && node->isLink())
> > 
> > I don't know if we want to change the math role away from what it is to a
> > link. 
> > if you put the href on a <mfrac> then that might mess up the math tree
> > that's created
> 
> (In reply to comment #3)
> > I don't know if we want to change the math role away from what it is to a
> > link. 
> > if you put the href on a <mfrac> then that might mess up the math tree
> > that's created
> 
> We definitely do not want to have the role overridden (although that's maybe
> not too much a trouble if href is only used on mrow). That's why I did not
> ask review for this patch ;-)
> 
> > it seems like either we should 
> > a) expand the concept of roles so that an object can have more than one role
> > b) make being a link an attribute as well as a role (probably the easiest
> > path)
> > c) make a fake element representing the link that becomes the parent of the
> > object
> 
> I believe we should get feedback from AT developers but my guess would be
> that on their side: c) won't need any effort , b) will need a minor effort
> and a) will be more complex.
> 
> Actually I'm curious about c), since that might help to remove anonymous
> nodes for mfenced if we decide to rewrite its renderer class (bug 160509).


i’m concerned C) might have adverse affects too. if you put this on a node within a math term, it might also change the expected hierarchy and break something. i think b) might be the easiest although we’ll need to change ATs for mac. iOS should be able to easily adopt this since a link is already an attribute

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