Contact emailsawogbem...@google.com

ExplainerNone

Specification
https://drafts.csswg.org/cssom-view/#the-visualviewport-interface

Summary

Scrollend is a JavaScript event that fires to signal that a scrolling
operation has come to an end. Similar to the Element interface[1], the
visualViewport interface[2] includes an onscrollend event handler that
should be invoked when a scrolling operation on the visualViewport has
ended. Chromium already supports adding a scrollend event listener via
`visualViewport.addEventListener("scrollend")`. This just makes it possible
to also add an event listener using `visualViewport.onscrollend`. [1]
https://html.spec.whatwg.org/multipage/webappapis.html#handler-onscrollend
[2]https://drafts.csswg.org/cssom-view/#dom-visualviewport-onscrollend.


Blink componentBlink>Scroll
<https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3EScroll>

TAG reviewNone

TAG review statusNot applicable

Risks


Interoperability and Compatibility

None


*Gecko*: No signal

*WebKit*: No signal

*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?

None


Debuggability

This makes it possible to add breakpoints to event handlers added by
`visualViewport.onscrollend` similar to `visualViewport.onscroll` or
onscrollend for any other element.


Will this feature be supported on all six Blink platforms (Windows, Mac,
Linux, ChromeOS, Android, and Android WebView)?Yes

Is this feature fully tested by web-platform-tests
<https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>
?Yes

https://wpt.fyi/results/dom/events/scrolling/scrollend-event-fires-on-visual-viewport.html?label=experimental&label=master&aligned


Flag name on chrome://flagsNone

Finch feature nameScrollEndEvents

Requires code in //chrome?False

Tracking bughttps://crbug.com/325307785

Estimated milestones
Shipping on desktop 125
Shipping on Android 125
Shipping on WebView 125

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).
None

Link to entry on the Chrome Platform Status
https://chromestatus.com/feature/5774579609108480?gate=4770235262697472

This intent message was generated by Chrome Platform Status
<https://chromestatus.com/>.

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