Bug 203031 – iPad not triggering the same pointer events as iPhone

• Component: DOM
• Status: RESOLVED CONFIGURATION CHANGED

[filcab]

I'm attaching a page with some JS for showing which events are being triggered.

I'm seeing a difference between iPad and iPhone that I can't explain:
On the iPad, a double-tap on the "test" button will only trigger one "pointerdown/pointerup" pair, whilst on the iPhone it triggers two, one pair for each tap.

Sequence of printed lines on the iPad for a double-tap on the "test" button:
pointerdown
pointerup
mousemove
mousedown
mouseup
click
mousedown
mouseup
click
dblclick


Sequence of printed lines on the iPhone:
pointerdown
pointerup
mousemove
mousedown
mouseup
click
pointerdown
pointerup
 (no mousemove)
mousedown
mouseup
click
dblclick


I found this when trying to fix this leaflet bug: https://github.com/Leaflet/Leaflet/issues/6817
I have a fix which works for the iPhone (leaflet wasn't doing what it should on new Safari with PointerEvents), but for the iPad it fails. I tracked down this difference in behaviour. I'm not sure this is the cause (I don't even see 'click' events being triggered by the second tap on the iPad)
https://github.com/Leaflet/Leaflet/pull/6855


I tried searching on bugzilla, but I couldn't find a similar bug. Sorry if this is a duplicate.

Thank you,
 Filipe

[filcab]

iOS version on both: iOS 13.1.2

[filcab]

Created attachment 381065 [details]
Test page

Actually attaching the file

[Antoine Quint]

Thanks for filing this Filipe.

In iOS and iPadOS 13.2 the difference you mention is gone and event log from iPhone as you list it will be the same on iPad as well. You can verify this with the latest iPadOS 13.2 developer seed from developer.apple.com.