[Webkit-unassigned] [Bug 214865] [WPE] Make Touchpoint ID unique

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=214865

--- Comment #3 from Marco Felsch <m.felsch at pengutronix.de> ---
Comment on attachment 405347
  --> https://bugs.webkit.org/attachment.cgi?id=405347
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=405347&action=review

>> Source/WebKit/ChangeLog:13
>> +        independent of libinput, the wayland-protocol and a wayland-compositor.
> 
> Can you please elaborate in more detail what failures in the libinput/wayland infrastructure this change tries to work around?

As I wrote a few input event devices delivering a unique ID but this gets ignored by libinput and isn't covered by the wayland-protocol at all.
Currently we are using the non unique touchpoint number to fill the web.touchpointID event. This is forbidden by the Spec if I got it correctly.
You can see the different behavior if you call your test page: https://people.igalia.com/clopez/wkbug/pointer-events/test.html on an iOS-Port Safari browser or on an WPE-Port cog (embedded device with touch is required).

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