Modern Event System: register onMouseEnter for portals#18720
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trueadm merged 1 commit intofacebook:masterfrom Apr 23, 2020
Merged
Modern Event System: register onMouseEnter for portals#18720trueadm merged 1 commit intofacebook:masterfrom
trueadm merged 1 commit intofacebook:masterfrom
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We found an issue internally with the modern event system and
onMouseEnter/onMouseLeave. Specifically, this issue occurs when we have a portal that is outside of the React root. Given we don't listen to events on the document, we need to know when an innermouseEnter/mouseLeavetraverses up through a portal to a parent that has this plugin in-use. If the portal doesn't have these event listeners attached too, then this never happens.I've added a repro test that demonstrates this.