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a11y: improve tree filtering keyboard navigation and announcement #8968
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This fixes the following issues: - Unable to go through filtered tree items via keyboard as the filter immediately gets closed after a blur event - Narrator doesn't announce search results and related instructions for filter The former issue is fixed by preserving the search query in case the query is not empty. If the query is empty blur causes the filter to close. I'd like to note that the filtered state is preserved until a user explicitly clears the search query. To me, this should be the desired behavior. The later issue has more to note about: - Refactored announcement to use `Announced` component from FluentUI built-ins. - Since Narrator still has issues with announcing status/alert roles used by the Announced component, added an explicit `aria-labeledby` link to the announced text, so it can be announced using Narrator shortcuts while navigating through the searchbox or the tree itself. - Improved announcement message to include the region label and more information regarding the current search query the result is provided for.
OEvgeny
requested review from
VamsiModem,
a-b-r-o-w-n,
benbrown,
beyackle,
boydc2014,
cwhitten,
natalgar,
srinaath,
tdurnford and
tonyanziano
as code owners
OEvgeny
changed the title
tonyanziano
approved these changes
Feb 8, 2022
Merged
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Description
This fixes the following issues:
The former issue is fixed by preserving the search query in case the query is not empty. If the query is empty blur causes the filter to close. I'd like to note that the filtered state is preserved until a user explicitly clears the search query. To me, this should be the desired behavior.
The later issue has more to note about:
Announcedcomponent from FluentUI built-ins. Tested with NVDA and it works.aria-labeledbylink to the announced text, so it can be announced using Narrator shortcuts while navigating through the searchbox or the tree itself.Task Item
Screenshots
#minor