Bug 214609

Summary:	Safari on iOS fires "pointerenter" with mouse pointerType in addition to touch
Product:	WebKit	Reporter:	Devon Govett <govett>
Component:	UI Events	Assignee:	Nobody <webkit-unassigned>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	ahmad.saleem792, graouts, thorton, webkit-bug-importer, wenson_hsieh, yivarak978
Priority:	P2	Keywords:	InRadar
Version:	Safari 13
Hardware:	Unspecified
OS:	Unspecified
See Also:	https://bugs.webkit.org/show_bug.cgi?id=210716

Description Devon Govett 2020-07-21 11:55:19 PDT

When you have an element with a `tabIndex`, Safari on iOS fires the "pointer enter" and "pointerleave" events twice: once with `pointerType` set to "touch", and again with `pointerType` set to "mouse". After touching and releasing the element, the events fired are:

* pointer enter: pointerType = "touch"
* pointer leave: pointerType = "touch"
* pointer enter: pointerType = "mouse"

A pointer leave event with pointerType = "mouse" is not fired until the element is blurred (e.g. by tapping on something else that's focusable). Based on this information, it appears that focus/blur events are also causing pointer enter/pointer leave events.

You can try this out in a demo here: https://codepen.io/devongovett/pen/QWyYWYa

Comment 1 Radar WebKit Bug Importer 2020-07-21 13:28:24 PDT

<rdar://problem/65899993>

Comment 2 Wenson Hsieh 2020-07-21 14:30:06 PDT

> * pointer enter: pointerType = "touch"
> * pointer leave: pointerType = "touch"
> * pointer enter: pointerType = "mouse"

These seem like events that would be fired when dispatching synthetic click events, which should be fixed in the iOS 14 beta.

Comment 3 Ahmad Saleem 2022-09-03 14:01:21 PDT

I am unable to reproduce this bug using iOS 15.6.1 on iPhone 13 Pro Max and it does not show ‘mouse’ with positionenter in the demo from Comment 0.

@Devon - if it is reproducible, appreciate if you can share updated testcase. Thanks!

Comment 4 Devon Govett 2022-09-06 15:53:34 PDT

I can confirm that it appears to be fixed in the latest iOS version.