1814074 - All list items are deleted when first list item follows an invisible white-space and all list item contents are selected

Status: VERIFIED FIXED

(Core :: DOM: Editor, defect, P3)

Description

[Masayuki Nakano [:masayuki] (he/him)(JST, +0900)]

Load the URL.

Actual Result: <ul></ul>

Expected Result: <ul><li><br></li></ul>

Comment 1

[Masayuki Nakano [:masayuki] (he/him)(JST, +0900)]

Attachment: Bug 1814074 - Make `AutoDeleteRangesHandler::ExtendOrShrinkRangeToDelete` consider whether all list items are selected more carefully r=m_kato!

It currently check range boundaries are start/end of a list element. However,
there are a lot of cases. E.g., selection can starts and/or ends inner
position due to invisible white-spaces and sub-lists.

The expectations of the new tests are based on Chrome's result. However,
unfortunately, the joining result of sub-lists is different from Chrome.
Therefore, they fail. (Gecko makes each list element has one list item.)

Depends on D168871

Comment 2

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/b57b0356d5dd
Make `AutoDeleteRangesHandler::ExtendOrShrinkRangeToDelete` consider whether all list items are selected more carefully r=m_kato

Comment 3

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

Created web-platform-tests PR https://github.com/web-platform-tests/wpt/pull/38487 for changes under testing/web-platform/tests

Comment 4

[Serban Stanca [:SerbanS]]

https://hg.mozilla.org/mozilla-central/rev/b57b0356d5dd

Comment 5

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

Upstream PR merged by moz-wptsync-bot

Comment 6

[Giorgia Nichita, Release Desktop QA]

Reproduced this issue on an affected Nightly build from 2023-01-31, using the STR from Comment 0 on Win 10.
Verified as fixed on Firefox 112.0b9 (20230330182947) and Firefox 113.0a1 (20230403092724) across the following platforms: Win 10 x64, Ubuntu 20.04 and macOS 10.15.