Does this still need to be added to a spec? "activeViewTransition" doesn't appear anywhere in https://drafts.csswg.org/css-view-transitions-2 or at https://dom.spec.whatwg.org/#interface-document.
-- Dan On Wednesday, July 30, 2025 at 8:31:16 AM UTC-7 vmp...@chromium.org wrote: > Contact emailsvmp...@google.com > > Explainer > https://github.com/WICG/view-transitions/blob/main/active-view-transition.md > > Specificationhttps://drafts.csswg.org/css-view-transitions-2 > > Summary > > View Transitions API allows developers to start visual transitions between > different states. The primary SPA entry point to this is > `startViewTransition()` which returns a transition object. This object > contains several promises and functionality to track the transition > progress, as well as allow manipulations such as skipping the transition or > modifying its types. The proposal here is ergonomic in nature: instead of > requiring that users store this object in some sort of way for easy access, > provide a `document.activeViewTransition` property that represents this > object, or null if there is no transition ongoing. Note this similarly > applies to MPA transitions, where the object is only available via > `pageswap` and `pagereveal` events. In this proposal > `document.activeViewTransition` would be set to this object for the > duration of the transition. > > > Blink componentBlink>ViewTransitions>SPA > <https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3EViewTransitions%3ESPA%22> > > TAG reviewhttps://github.com/w3ctag/design-reviews/issues/1124 > > TAG review statusPending > > Risks > > > Interoperability and Compatibility > > This is a new addition that doesn't pose interop or compat risks. The > availability of this feature is detectable via the presence of the property > > > *Gecko*: No signal ( > https://github.com/mozilla/standards-positions/issues/1278) Discussed at > https://github.com/w3c/csswg-drafts/issues/12407 > > *WebKit*: No signal ( > https://github.com/WebKit/standards-positions/issues/536) Discussed at > https://github.com/w3c/csswg-drafts/issues/12407 > > *Web developers*: No signals > > *Other signals*: > > Ergonomics > > This is an ergonomic improvement > > > Activation > > none > > > Security > > none > > > 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 is debuggable via ways similar to other document properties > > > 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 > > Will add tests as part of the implementation > > > Flag name on about://flagsNone > > Finch feature nameDocumentActiveViewTransition > > Rollout planWill ship enabled for all users > > Requires code in //chrome?False > > Tracking bughttps://issues.chromium.org/434949972 > > Estimated milestones > Shipping on desktop 141 > Shipping on Android 141 > Shipping on WebView 141 > > 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/5067126381215744?gate=5627959184195584 > > This intent message was generated by Chrome Platform Status > <https://chromestatus.com/>. > -- You received this message because you are subscribed to the Google Groups "blink-dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to blink-dev+unsubscr...@chromium.org. To view this discussion visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/67877526-643c-4c15-8a4e-17c49099d927n%40chromium.org.
