1860210 - `beforeinput.getTargetRanges()` may return outside of focused and nested editing host if it follows white-spaces

Status: RESOLVED FIXED

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

Description

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

<div contenteditable><div id=a contenteditable="false">
  <div id=b contenteditable><p>[]<br></p></div>
</div></div>

Type Backspace after focusing the inner editing host. Then, getTargetRanges() will return <div id=a>,1 - <p>,1.

Comment 1

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

Attachment: Bug 1860210 - Make `HTMLEditUtils::GetPreviousEditablePoint` and `HTMLEditUtils::GetNextEditablePoint` check ancestor limiter before getting a sibling of ancestor r=m_kato!

They check ancestor limiter when they are climbing up the DOM tree if and only
if the ancestor does not have a sibling. However, this causes moving into
a sibling of the ancestor limiter.

Comment 2

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/08912004c595
Make `HTMLEditUtils::GetPreviousEditablePoint` and `HTMLEditUtils::GetNextEditablePoint` check ancestor limiter before getting a sibling of ancestor r=m_kato

Comment 3

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

Created web-platform-tests PR https://github.com/web-platform-tests/wpt/pull/43071 for changes under testing/web-platform/tests

Comment 4

[Cristian Tuns]

https://hg.mozilla.org/mozilla-central/rev/08912004c595

Comment 5

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

Upstream PR merged by moz-wptsync-bot