Minimal shape shared by ScreenKeyboardLayer and FocusTarget — any object that holds allowedKeys, penetrationKeys, and stoppedKeys as KeyRule arrays.
allowedKeys
penetrationKeys
stoppedKeys
Optional
Keys allowed to pass through the modal barrier (present on modal elements).
Key rules marked as transparent (pass-through to lower layers or focus targets).
Key rules stopped here (propagation barrier).
Minimal shape shared by ScreenKeyboardLayer and FocusTarget — any object that holds
allowedKeys,penetrationKeys, andstoppedKeysas KeyRule arrays.