[desktop_drop]: support multiple DropTarget and improve web handling #235
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These are some changes I made to support multiple independent
DropTargets for an app I'm currently working on, unfortunately I don't have a lot of time to clean it up at the moment, but wanted to share it in case you were interested and had time to polish it and use it.NOTE: Since I needed it just for web I focused on only that implementation, I haven't checked what happens on the other platforms.
It uses Flutter's
RenderProxyBoxWithHitTestBehaviorandhitTestto determine which one of the multiple targets are being hit, it then sends an exit event to the previous target (if any) and sends the current event to the target.Hope it's clear enough and it helps!