LGTM1

On 3/31/25 3:38 PM, Vladimir Levin wrote:


On Mon, Mar 31, 2025 at 3:27 PM Vladimir Levin <vmp...@chromium.org> wrote:


            Contact emails

    vmp...@chromium.org, nrosent...@chromium.org


            Explainer

    None


The explainer is here: https://github.com/WICG/view-transitions/blob/main/auto-name-explainer.md



            Specification

    https://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 component

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


            TAG review

    https://github.com/w3ctag/design-reviews/issues/1001


            TAG review status

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



            Flag name on about://flags

    None


            Finch feature name

    CSSViewTransitionMatchElement


            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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