[Webkit-unassigned] [Bug 206170] New: onwebkit{animation, transition}XX handlers missing from Document

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=206170

            Bug ID: 206170
           Summary: onwebkit{animation, transition}XX handlers missing
                    from Document
           Product: WebKit
           Version: Safari 13
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: DOM
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: smcgruer at chromium.org

Created attachment 387514

  --> https://bugs.webkit.org/attachment.cgi?id=387514&action=review

Reproduction of bug

The spec says[0] that the prefixed animation event handlers (listed below) are defined on 'elements, Document objects, and Window objects'. Firefox defines it on all three, Chrome currently defines them only on Window but this is being fixed in [1], and WebKit defines them on elements and Window objects but not HTMLElements.

The event handlers are:

  * onwebkitanimationend
  * onwebkitanimationiteration
  * onwebkitanimationstart
  * onwebkittransitionend

A reproduction is attached. There are wpt.fyi tests at wpt/html/dom/idlharness.https.html?include=HTML.*[2] and wpt/html/dom/idlharness.https.html?include=(Document|Window)[3], but it looks like Safari's webdriver implementation fails to handle URLs with '(' (or maybe '|') in them, so currently the tests are harness errors (will file a separate bug for that).

[0]: https://html.spec.whatwg.org/multipage/webappapis.html#event-handlers-on-elements,-document-objects,-and-window-objects
[1]: https://groups.google.com/a/chromium.org/forum/#!topic/blink-dev/4Fidt4JqkTk
[2]: https://wpt.fyi/results/html/dom/idlharness.https.html%3Finclude=HTML.*?label=experimental&label=master&aligned
[3]: https://wpt.fyi/results/html/dom/idlharness.https.html%3Finclude%3D(Document%7CWindow)?label=master&label=experimental&aligned

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