[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

--- Comment #4 from Carlos Garcia Campos <cgarcia at igalia.com> ---
We can make touch also a runtime feature, it's indeed listed in RuntimeEnabledFeatures, but ot actually used. However, I'm not sure it's possible to use "ontouchstart" in window to check if touch is enabled. That could be used to check if wk has been build with touch events enabled, but not if the feature is enabled at runtime. I don't think it's possible to not include attributes depending on runtime features. In case of touch being disabled at runtime, you could check if window.ontouchstart is undefined, for example, or if document.createEvent('TouchEvent') raises an exception.

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