Chris Bracken 6a6541b4de Windows: Implement IAccessible hit testing (flutter/engine#30366) ...

IAccessible objects should implement accHitTest. Our implementation, in
AXPlatformNodeWin, delegates hit testing to
AXPlatformNodeDelegate::HitTestSync. Here, we do a quick recursive
depth-first walk of the accessibility tree to return the best match.

We define the best match as the deepest node in the tree that contains
the point under test whose children do not.

Issue: https://github.com/flutter/flutter/issues/77838

2021-12-16 10:13:15 -08:00

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src/flutter

Windows: Implement IAccessible hit testing (flutter/engine#30366)

2021-12-16 10:13:15 -08:00