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

Specification
https://drafts.csswg.org/css-view-transitions-2/#the-active-view-transition-pseudo

Summary

This feature allows View transition API use to be customized for different
types of transitions. Specifically, this adds an ability to add "types" to
`startViewTransition` call which will identify the types of the transition.
As well, it will match a pseudo-class, called
`:active-view-transitions(...)` with a parameter matching the type for the
duration of the view transition. Combined these two features provide a way
for the author to declare several view transitions once and only trigger
one at a time. See example usage in the spec:
https://drafts.csswg.org/css-view-transitions-2/#the-active-view-transition-pseudo


Blink componentBlink>ViewTransitions>SPA
<https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3EViewTransitions%3ESPA>
TAG reviewNone

TAG review statusNot applicable

Risks


Interoperability and Compatibility

None, this builds on top of existing ViewTransitions API, but doesn't break
existing behavior.


*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, WPTs will come as part of implementation

Flag name on chrome://flagsNone

Finch feature nameViewTransitionTypes

Non-finch justificationNone

Requires code in //chrome?False

Tracking bughttps://bugs.chromium.org/p/chromium/issues/detail?id=1466251

Estimated milestones

No milestones specified


Link to entry on the Chrome Platform Status
https://chromestatus.com/feature/5089552511533056

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

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