[csswg-drafts] [scroll-animations-1] should `ViewTimelineOptions.subject` be `required`? (#9584)

graouts has just created a new issue for https://github.com/w3c/csswg-drafts:

== [scroll-animations-1] should `ViewTimelineOptions.subject` be `required`? ==
While reviewing an [early patch](https://github.com/WebKit/WebKit/pull/20245) for `ViewTimeline` and `ViewTimelineOptions` in WebKit, a question about the spec [came up](https://github.com/WebKit/WebKit/pull/20245#discussion_r1388371890):

> I suspect the spec intended this dictionary member to be marked as `required` since it is not nullable and the corresponding attribute on the interface is not nullable either. May be worth filing an issue against the spec.

Should the `ViewTimelineOptions` be specified as follows?

```idl
dictionary ViewTimelineOptions {
  required Element subject;
  ScrollAxis axis = "block";
  (DOMString or sequence<(CSSNumericValue or CSSKeywordValue)>) inset = "auto";
};
```

Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/9584 using your GitHub account


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Received on Thursday, 9 November 2023 19:21:49 UTC