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Re: [pointerevents] Add OS image dragging to non-normative reasons for pointercancel

From: Navid Zolghadr via GitHub <sysbot+gh@w3.org>
Date: Mon, 15 May 2017 19:12:08 +0000
To: public-pointer-events@w3.org
Message-ID: <issue_comment.created-301574506-1494875527-sysbot+gh@w3.org>
@appsforartists your point is certainly valid and we have this case in other situations as well. Basically there might be multiple behaviors as the default action for some events and you either can preventDefault to prevent them all or not to call preventDefault and keep them all.
Regarding this particular behavior discussed in this issue, do you have a sample page that preventDefaulting on down would prevent a behavior on your page on any browser? For example I don't recall any browser stop firing click due to preventDefault on down. For panning, if you are referring to touch as far as I know there is no way any browser does both panning and dragging at the same time.

@RByers @dtapuska are you aware of any cases that sending an input device event after `dragstart` could cause any compat issues? Note that the drag spec says there shouldn't be any input device event after drag event. Although at the time there was no pointer events.

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Received on Monday, 15 May 2017 19:12:15 UTC

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