fix(drag-drop): connected drop zones not working inside shadow root #16899
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Fixes not being able to drop into a connected drop list when using `ShadowDom` view encapsulation. The issue comes from the fact that we use `elementFromPoint` to figure out whether the user's pointer is over a drop list. When the element is inside a shadow root, calling `elementFromPoint` on the `document` will return the shadow root. These changes fix the issue by calling `elementFromPoint` from the shadow root instead. Fixes angular#16898.
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Fixes not being able to drop into a connected drop list when using
ShadowDomview encapsulation. The issue comes from the fact that we useelementFromPointto figure out whether the user's pointer is over a drop list. When the element is inside a shadow root, callingelementFromPointon thedocumentwill return the shadow root.These changes fix the issue by calling
elementFromPointfrom the shadow root instead.Fixes #16898.