If there are multiple nodes and those are overwrapped, the mouse click event happens on the bottom node ( widget on bottom node ) if you click the overwrapped areas of the nodes.
screenshot #1 : before mouse clicking on the spot.
screenshot #2 : after mouse clicking on the spot.
the connected callback event from bottom node is activated, then user should click the region on top of the node which is not overlapped to another node.
If there are multiple nodes and those are overwrapped, the mouse click event happens on the bottom node ( widget on bottom node ) if you click the overwrapped areas of the nodes.
screenshot #1 : before mouse clicking on the spot.
screenshot #2 : after mouse clicking on the spot.
the connected callback event from bottom node is activated, then user should click the region on top of the node which is not overlapped to another node.