sideshowbarker e2a7f844e6 LibWeb: Handle accessible-name computation for shadow roots and slots ...

This change adds handling for the “Determine Child Nodes” substep at
https://w3c.github.io/accname/#comp_name_from_content_find_child in the
“Accessible Name and Description Computation” spec. Specifically, it
adds handling for the “If the current node has an attached shadow root”
and “if the current node is a slot with assigned nodes” conditions.

Otherwise, without this change, AT users don’t hear the expected
accessible names in cases where the content for which an accessible name
being computed is in a shadow root or slot element.

2024-11-25 11:52:48 +01:00

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