Contact emailsawogbem...@google.com, arg...@google.com

Explainer
https://github.com/argyleink/ScrollSnapExplainers/tree/main/js-snapChanged

Specification
https://drafts.csswg.org/css-scroll-snap-2/#snapchanged-and-snapchanging

Summary

Snapchanged events allow developers reliably listen for when the "snap
target" of a scroller changes and perform style adjustments as
necessary/desired. CSS scroll snap points are often used as a mechanism to
create scroll interactive "selection" components, where selection is
determined with javascript intersection observers and a scroll end
guestimate. By creating a built-in event, the invisible state will become
actionable, at the right time, and always correct.


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

Motivation

This event will help developers synchronize a snapped scroll item with the
rest of their interface elements efficiently and effectively.


Initial public proposalhttps://github.com/w3c/csswg-drafts/issues/156

TAG reviewNone

TAG review statusPending

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

None


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 chrome://flagsNone

Finch feature nameNone

Non-finch justificationNone

Requires code in //chrome?False

Estimated milestones

No milestones specified


Link to entry on the Chrome Platform Status
https://chromestatus.com/feature/5826089036808192

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

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