On 6/16/26 11:21 a.m., Chromestatus wrote:
*Contact emails*
[email protected]
*Specification*
https://w3c.github.io/pointerevents/#dom-wheelevent-momentum
*Summary*
The wheel events on many native platforms simulate scrolling inertia:
the events continue to fire for a while after the user has lifted the
finger from the trackpad after a fling interaction. This feature
exposes a momentum attribute in wheel events which is true only for
those simulated events, differentiating them from the events fired
during the physical scroll interaction. This lets web developers
ignore fling events or customize rich fling effects.
*Blink component*
Blink>Input
<https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3EInput%22>
*Web Feature ID*
Missing feature
*Motivation*
/No information provided/
*Initial public proposal*
/No information provided/
*TAG review*
This feature is too small and non-controversial to justify a TAG review.
*TAG review status*
Not applicable
*Goals for experimentation*
None
*Risks*
*Interoperability and Compatibility*
/No information provided/
/Gecko/:
Positive (https://lists.w3.org/Archives/Public/public-pointer-events/2026JanMar/0148.html#:~:text=smaug%3A%20just%20having%20a%20flag%20should%20be%20easy.%20we%27ll%20just%20have%20to%20do%20%0Asomething%20on%20linux) Supported
the feature during PEWG meeting on 2026-03-11.
/WebKit/: No signal
Can we file real vendor position issues for Gecko and WebKit (but, nice
to see the comments from Olli)?
/Web developers/:
Positive (https://github.com/w3c/pointerevents/issues/587) See the dev
discussion and also many thumbs-up emojis.
/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 by web-platform-tests
<https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>?*
No
*Flag name on about://flags*
/No information provided/
*Finch feature name*
WheelEventMomentum
*Rollout plan*
Will ship enabled for all users
*Requires code in //chrome?*
False
*Tracking bug*
https://crbug.com/40704952
*Estimated milestones*
Shipping on desktop 151
Shipping on Android 151
Shipping on WebView 151
*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/6631012282007552?gate=5864164607262720
This intent message was generated by Chrome Platform Status
<https://chromestatus.com>.
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