Leon Huang 109e2cd26d Introduced screen reader navigation policies. This allows the screen reader to navigate around UI elements on the screen separate from regular Slate navigation. ...

- Introduced IScreenReaderNavigationPolicy. This is an interface class that helps the screen reader navigate to the appropriate target accessible widget.
- Introduced FScreenReaderDefaultNavigationPolicy. This is a policy that all FScreenReaderUsers have by default. It helps the screen reader user find target accessible widgets that are enabled and can be focused on.
- Introduced focus navigation functions to FScreenReaderUser. This is the means clients can control and shift accessible focus for FScreenReaderUsers.
- IAccessibleWidget can now retrieve the logical next and previous widget in the accessible widget hierarchy. This functionality is similar to that of mobile screen readers like Voiceover and Android Talkback which allow users to navigate around the UI hierarchy with left and right swipes.
- IAccessibleWidget can now search for a target widget from a source widget based on a search criteria. This is useful for searching for widgets by characteristics (such as enabled state, widget type etc).
- Fixed a small bug in accessible focus where an accessible widget with application focus cannot receive accessible focus again and have its contents announced to the end user.
#rb: Prajwal.Manjunath
#jira: UE-130926
#preflight: 61baf981440d71c977b3089a

[CL 18477319 by Leon Huang in ue5-main branch]

2021-12-16 13:57:14 -05:00

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Source/ScreenReader

Introduced screen reader navigation policies. This allows the screen reader to navigate around UI elements on the screen separate from regular Slate navigation.

2021-12-16 13:57:14 -05:00

ScreenReader.uplugin

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