- From: Oriol Brufau via GitHub <sysbot+gh@w3.org>
- Date: Sat, 23 Jul 2022 00:26:15 +0000
- To: public-css-archive@w3.org
Loirooriol has just created a new issue for https://github.com/w3c/csswg-drafts: == [css-sizing] What happens with the last remembered size is there is no principal box? == https://drafts.csswg.org/css-sizing-4/#last-remembered > At the time that [ResizeObserver](https://drafts.csswg.org/resize-observer-1/#resizeobserver) events are determined and delivered, if an element has [`contain-intrinsic-size: auto`](https://drafts.csswg.org/css-sizing-4/#propdef-contain-intrinsic-size), is capable of being a [ResizeObserver](https://drafts.csswg.org/resize-observer-1/#resizeobserver) target, but does not have [size containment](https://drafts.csswg.org/css-contain-2/#size-containment), record the current inner dimensions of its [principal box](https://drafts.csswg.org/css-display-3/#principal-box) as its [last remembered size](https://drafts.csswg.org/css-sizing-4/#last-remembered). It's unclear what happens if there is no principal box. There is a note below which says that the last remembered size survives `display: none`, so I guess it's just not recorded: > At the time that [ResizeObserver](https://drafts.csswg.org/resize-observer-1/#resizeobserver) events are determined and delivered, if an element has [`contain-intrinsic-size: auto`](https://drafts.csswg.org/css-sizing-4/#propdef-contain-intrinsic-size), is capable of being a [ResizeObserver](https://drafts.csswg.org/resize-observer-1/#resizeobserver) target, **generates a principal box**, but does not have [size containment](https://drafts.csswg.org/css-contain-2/#size-containment), record the current inner dimensions of its [principal box](https://drafts.csswg.org/css-display-3/#principal-box) as its [last remembered size](https://drafts.csswg.org/css-sizing-4/#last-remembered). Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/7527 using your GitHub account -- Sent via github-notify-ml as configured in https://github.com/w3c/github-notify-ml-config
Received on Saturday, 23 July 2022 00:26:17 UTC