Context handed to a ValidateEmbedding callback while an element is dragged over a candidate parent. Use it to compare the dragged child against the parent it would drop into.
child
parent
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The element being dragged (the would-be child).
The graph the elements belong to.
The paper the elements live on.
The element it would be embedded into (the would-be parent).
Context handed to a ValidateEmbedding callback while an element is dragged over a candidate parent. Use it to compare the dragged
childagainst theparentit would drop into.