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

From: Brenton Simpson via GitHub <sysbot+gh@w3.org>
Date: Wed, 10 May 2017 02:25:49 +0000
To: public-pointer-events@w3.org
Message-ID: <issues.opened-227550022-1494383148-sysbot+gh@w3.org>
appsforartists has just created a new issue for https://github.com/w3c/pointerevents:

== Add OS image dragging to non-normative reasons for pointercancel ==
The nonnormative reasons for `pointercancel` include a bunch of scenarios where a browser default action (like panning) took over in the middle of a gesture.  A common, but unmentioned, scenario is browser/OS-level drag-and-drop.  Like panning, I believe this should cause a `pointercancel`.  Unfortunately, this doesn't seem to currently be specified; and none of {Chrome, Edge, Firefox} behave that way.

Here's a bug to fix in Chrome:
https://crbug.com/720201

and a reduction:
https://codepen.io/appsforartists/pen/NjybQX?editors=1011

Please view or discuss this issue at https://github.com/w3c/pointerevents/issues/205 using your GitHub account
Received on Wednesday, 10 May 2017 02:25:56 UTC

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