1789754 - Don't record a 0x0 last rememebered size when an element with `contain-intrinsic-size:auto` becomes `display:inline`

Status: RESOLVED FIXED

(Core :: Layout, defect)

Description

[Daniel Holbert [:dholbert] (PTO until 2/24)]

CSSWG resolved to not stomp on the last-recorded size when an element goes from display:block to display:inline (for consistency with what happens when the element goes from display:block to display:none).

https://github.com/w3c/csswg-drafts/issues/7606#issuecomment-1240015961

Oriol noted in the github issue that we (and Chrome) are currently recording 0x0 as the last-remembered size in this scenario, so we need an update to align with this resolution.

Comment 1

[Daniel Holbert [:dholbert] (PTO until 2/24)]

(Not sure if this needs a dedicated bug or not; Oriol, feel free to dupe if you're just handling this as part of existing work on other bugs. )

Comment 2

[Oriol Brufau [:Oriol]]

Should be quite straightforward, with just an edge case to consider: if the 0x0 size is not recorded due to display: inline, and later the element becomes display: block with size 0x0, then the last remembered size should be recorded even if a ResizeObserver wouldn't notify the change.

Comment 3

[Oriol Brufau [:Oriol]]

Attachment: Bug 1789754 - Don't record last remembered size for non-replaced inlines. r?emilio

Comment 4

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/0e0fa244516a
Don't record last remembered size for non-replaced inlines. r=emilio

Comment 5

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Created web-platform-tests PR https://github.com/web-platform-tests/wpt/pull/35860 for changes under testing/web-platform/tests

Comment 6

[Iulian Moraru]

https://hg.mozilla.org/mozilla-central/rev/0e0fa244516a

Comment 7

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Upstream PR merged by moz-wptsync-bot