734729 - (dynamic-maction-math) <maction> not rendered correctly when the selection attribute is changed on the <math> element

Status: RESOLVED WONTFIX

(Core :: MathML, defect)

Description

[Frédéric Wang (:fredw)]

Attachment: testcase

See attached testcase.
Also compare with attachment 546412 [details] from bug 657279.

Comment 1

[Frédéric Wang (:fredw)]

So the difference here seems to be that nsMathMLmstyleFrame::AttributeChanged calls nsMathMLContainerFrame::ReLayoutChildren which does more things than simply reflowing the frame. Maybe a possible fix for this bug (and for other mstyle's attributes used on the math element) would be to make nsMathMLmathInlineFrame::AttributeChanged and nsMathMLmathBlockFrame::AttributeChanged do the same thing for mstyle's attributes.

Comment 2

[Frédéric Wang (:fredw)]

Attachment: testcase

Add test for block math.

Comment 3

[Frédéric Wang (:fredw)]

Attachment: testcase

same testcase, but with actiontype="toggle".

Comment 4

[Mohit Sinha]

Attachment: patch not working

Having made these changes, 'invalid markup' is showing for the above testcases(dynamic part).
nsMathMLContainerFrame::ReflowError is called from nsMathMLContainerFrame::MeasureForWidth which itself  calls Place.

Comment 5

[Frédéric Wang (:fredw)]

This is WONTFIX per bug 838509.