[Webkit-unassigned] [Bug 82482] New: PreventDefault doesn't effect current touches.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=82482

           Summary: PreventDefault doesn't effect current touches.
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: Event Handling
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: tdresser at chromium.org
                CC: rjkroege at chromium.org, sadrul at chromium.org


Created an attachment (id=134336)
 --> (https://bugs.webkit.org/attachment.cgi?id=134336&action=review)
Delayed Prevent Default

If a touch is currently in progress, adding a touch move event listener which preventDefaults doesn't do anything.

To reproduce:
1. Open delayed_prevent_default.html.
2. Touch down right away. You should be able to scroll around.
3. After 1.5 seconds, a touch move event listener is added which preventDefaults all successive events.

At this point, it shouldn't be possible to scroll around, but you can.

If you release and retouch, it is impossible to scroll around.

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