Chrome 125 + Safari 18.2 support startViewTransition() with object

[caugner]

Summary

Adds startViewTransition() subfeature for accepting an options object.

Test results and supporting details

Chromium impl: https://chromestatus.com/feature/5089552511533056
WebKit impl: WebKit/WebKit@c6cadba (in 620.1.2 before Safari 18.2)

Related issues

See:

• ViewTransition - Missing Documentation mdn#643

[Elchi3]

I think you should follow the parameter data guidelines, https://github.com/mdn/browser-compat-data/blob/main/docs/data-guidelines/index.md#parameters-and-parameter-object-features

[caugner]

@Elchi3 This one is a bit tricky, as the method accepts either a ViewTransitionUpdateCallback or a StartViewTransitionOptions object, but in both cases the parameter is called callbackOptions. So there isn't a options parameter:

partial interface Document {
ViewTransition startViewTransition(optional (ViewTransitionUpdateCallback or StartViewTransitionOptions) callbackOptions = {});
}

But since CSS View Transitions Level 1 calls the parameter updateCallback, should we add both updateCallback_parameter and callbackOptions_parameter instead?

[Elchi3]

But since CSS View Transitions Level 1 calls the parameter updateCallback, should we add both updateCallback_parameter and callbackOptions_parameter instead?

Yes, I think that sounds reasonable to me.

[caugner]

Yes, I think that sounds reasonable to me.

@Elchi3 Done in 325b427.

[Elchi3]

Thank you! 👍