[Webkit-unassigned] [Bug 139681] Touch support is reported even when the device doesn't have a touch screen

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=139681

Michael Catanzaro <mcatanzaro at igalia.com> changed:

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--- Comment #13 from Michael Catanzaro <mcatanzaro at igalia.com> ---
Comment on attachment 243496
  --> https://bugs.webkit.org/attachment.cgi?id=243496
Patch

Darin has several reservations about supporting runtime-enabled events, and it seems this patch is unlikely to fix websites in practice, correct? I think this requires at least discussion on webkit-dev, and possibly with W3C and other browsers.

If we are going to enable touch events at runtime, we should at least try to match the behavior of other engines. I am not sure, but I strongly suspect other engines are not checking whether the device uses a touchscreen, else the broken jQuery that makes a binary choice between using touch events or mouse events would not exist. Perhaps for compatibility, we should not be checking for whether a touchscreen is present, but for whether a non-touch input devices exist. E.g. if a mouse is plugged into your touchscreen computer, it's more important for the mouse to work than for the touchscreen to work.

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