1539589 - contain:layout should suppress baseline alignment for scrollable inline-level elements

Status: RESOLVED DUPLICATE of bug 1552287

(Core :: Layout, defect, P3)

Description

[Daniel Holbert [:dholbert]]

STR:

1. Load attached testcase

EXPECTED RESULTS:
"abc" should not be aligned with the text inside the black boxes. (contain:layout should make those boxes behave like they have no baseline.)

ACTUAL RESULTS:
"abc" is aligned with the baseline of the inline-flex and inline-grid boxes. (and that's incorrect)

Note: if we remove overflow:scroll, then I get EXPECTED RESULTS from the inline-flex part of the test, but not from the inline-grid part of the test. That grid brokenness is bug 1539586.

Comment 1

[Daniel Holbert [:dholbert]]

Attachment: testcase 1

Comment 2

[Daniel Holbert [:dholbert]]

Note: Chrome is not a perfect reference for our expected behavior here -- they do align empty vs. contained inline-grid & inline-flex containers consistently, but they do so at the wrong position per https://bugs.chromium.org/p/chromium/issues/detail?id=946669

Comment 3

[Daniel Holbert [:dholbert]]

I'm going to use this as the first bug for an intern starting next week. So, nobody take it, please.

Comment 4

[Daniel Holbert [:dholbert]]

Oops, it seems I fixed this as part of bug 1552287 -- specifically this chunk:
https://hg.mozilla.org/mozilla-central/rev/3eda0c8cf975#l8.2

I'll just dupe this over to bug 1552287.