[web:a11y] make header a <header> when non-empty and heading when empty #55996
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…158303) flutter/engine@94dac95...076688d 2024-11-07 [email protected] [web:a11y] make header a <header> when non-empty and heading when empty (flutter/engine#55996) 2024-11-06 [email protected] [Impeller] make sure binding nullptr texture does not crash. (flutter/engine#56381) If this roll has caused a breakage, revert this CL and stop the roller using the controls here: https://autoroll.skia.org/r/flutter-engine-flutter-autoroll Please CC [email protected],[email protected] on the revert to ensure that a human is aware of the problem. To file a bug in Flutter: https://github.com/flutter/flutter/issues/new/choose To report a problem with the AutoRoller itself, please file a bug: https://issues.skia.org/issues/new?component=1389291&template=1850622 Documentation for the AutoRoller is here: https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md
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This relands the reverted original PR with one important adjustment: if the header is empty and has a label, it is rendered as a heading (
<h1>,<h2>, etc) instead of a<header>. This is to be consistent with mobile, where headers are frequently used as headings, and screen readers do indeed read it as "heading". Changing all headers to the<header>tag turned to out to be too disruptive to existing usages ofSemanticsProperties.header.Long-term, when flutter/flutter#155928 is implemented, we could migrate the framework to use
SemanticsProperties.headingLevelto communicate that something is a heading, and encourage our users to move fromheadertoheadingLevelas well. After that migration is done, we could make all headers proper<header>tags, and not special-case empty headers.Fixes flutter/flutter#152268