Contact emailsvmp...@chromium.org, nrosent...@chromium.org

ExplainerNone

Specificationhttps://drafts.csswg.org/css-view-transitions-2/#auto-vt-name

Summary

'match-element' generates a unique id based on the element's identity and
renames the same for this element. This is used in Single Page App cases
where the element is being moved around and the desire is to animate it
with a view transition Note this is split off from
https://chromestatus.com/feature/6575974796492800 which contains additional
discussions


Blink componentBlink>ViewTransitions>SPA
<https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3EViewTransitions%3ESPA%22>

TAG reviewhttps://github.com/w3ctag/design-reviews/issues/1001

TAG review statusIssues addressed. Note that TAG discussion continues about
view-transition-name: auto which will be tracked in a separate intent.

Risks


Interoperability and Compatibility

None


*Gecko*: No signal (
https://github.com/mozilla/standards-positions/issues/1198)

*WebKit*: Shipped/Shipping (
https://developer.apple.com/documentation/safari-release-notes/safari-18_4-release-notes
)

*Web developers*: Positive This is a developer request feature to ensure
that they do not have to come up with unique names for every participating
element.

*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


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>
?Yes

https://wpt.fyi/results/css/css-view-transitions/match-element-name.html?label=master&label=experimental&aligned


Flag name on about://flagsNone

Finch feature nameCSSViewTransitionMatchElement

Requires code in //chrome?False

Estimated milestones
Shipping on desktop 137
Shipping on Android 137
Shipping on WebView 137

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/5098745710247936?gate=5195081088499712

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

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