[material-ui] Add merging function to mergeSlotProps
utility
#45543
+131
−41
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closes #45503
Docs: https://deploy-preview-45543--material-ui.netlify.app/material-ui/guides/composition/#forwarding-slot-props
Issue
Currently,
mergeSlotProps
does not compose event handlers. So event handlers passed by theslotProps.*
will override the default event handlers.Fix
Iterate the default props and check if the key is an event handler (follow the same logic as in Base UI), then compose it with the one from the
slotProps.*