*Contact emails*
[email protected]
*Specification*
https://drafts.csswg.org/css-animations/#interface-globaleventhandlers
*Design docs*
/No information provided/
https://developer.mozilla.org/en-US/docs/Web/API/Element/animationcancel_event
*Summary*
The CSS Animations Level 1 extends [1] the GlobalEventsHandler Interface
defined in the HTML spec [2], declaring 4 new event handlers:
onanimationstart, onanimationiteration, onanimationend and
onanimationcancel. Only the 'onanimationcancel' event handler has been
missing from the GobalEventsHandler IDL.
[1]https://drafts.csswg.org/css-animations/#interface-globaleventhandlers
[2]https://html.spec.whatwg.org/multipage/webappapis.html#globaleventhandlers
*Blink component*
Blink>Animation
<https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3EAnimation%22>
*Web Feature ID*
animations-css <https://webstatus.dev/features/animations-css>
*Motivation*
The 'onanimationcancel" event handler should be exposed through the
GlobalEventHandlers interface so that web applications can detect when
the animation stops running in a way that does not fire an
'animationend' event, such as a change in the 'animation-name' that
removes the animation, or the animating element or one of its ancestors
becoming display:none.
*Initial public proposal*
/No information provided/
*TAG review*
/No information provided/
*TAG review status*
Not applicable
*Risks*
*Interoperability and Compatibility*
This change improves interop making Chrome match with the rest of the
engines, which has been already shipped the feature long time ago.
/Gecko/:
Shipped/Shipping (https://searchfox.org/firefox-main/rev/f81fae7890605739dd8dde14755f159fe6beb8aa/dom/webidl/EventHandler.webidl#134)
https://bugzilla.mozilla.org/show_bug.cgi?id=1302648
/WebKit/:
Shipped/Shipping (https://github.com/WebKit/WebKit/blob/0c009bd3041dcffddadd9656a928076ba262462f/Source/WebCore/animation/GlobalEventHandlers%2BCSSAnimations.idl#L31)
/Web developers/: No signals
/Other signals/:
*WebView application risks*
Does this intent deprecate or change behavior of existing APIs, such
that it has potentially high risk for Android WebView-based applications?
/No information provided/
*Debuggability*
/No information provided/
*Will this feature be supported on all six Blink platforms (Windows,
Mac, Linux, ChromeOS, Android, and Android WebView)?*
No
*Is this feature fully tested byweb-platform-tests
<https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>?*
Yes
There is 'css/css-animations/idlharness.html' [1] test to check whether
the attribute it's properly exposed in the globalEventHandler interface.
[1]
https://wpt.fyi/results/css/css-animations/idlharness.html?label=master&label=experimental&aligned
<https://wpt.fyi/results/css/css-animations/idlharness.html?label=master&label=experimental&aligned>
*Flag name on about://flags*
N/A
*Finch feature name*
/No information provided/
*Non-finch justification*
No need for a finch flag given that the 'cancelanimation' event has been
implemented long ago and this change it's just about exposing it through
the globalEventsHandlers interface
*Rollout plan*
Will ship enabled for all users
*Requires code in //chrome?*
False
*Tracking bug*
https://issues.chromium.org/issues/464010037
*Estimated milestones*
Shipping on desktop 145
Shipping on Android 145
Shipping on WebView 145
*Anticipated spec changes*
Open questions about a feature may be a source of future web compat or
interop issues. Please list open issues (e.g. links to known github
issues in the project for the feature specification) whose resolution
may introduce web compat/interop risk (e.g., changing to naming or
structure of the API in a non-backward-compatible way).
/No information provided/
*Link to entry on the Chrome Platform Status*
https://chromestatus.com/feature/5160464445210624?gate=6492452351508480
This intent message was generated byChrome Platform Status
<https://chromestatus.com/>.
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