tree b2c8bfe0d2094679cb8b7aa3f5db27981b26d840
parent 2f69c8fe9d5aef171860f20457c97ce008715de1
author Masayuki Nakano <masayuki@d-toybox.com> 1675067834 +0000
committer moz-wptsync-bot <wptsync@mozilla.com> 1675115683 +0000

Make the delete handler of `HTMLEditor` collapse `Selection` to end of left block after joining blocks

The other browsers do not allow to type text into right hand inline element,
however, Gecko allows it depending on the cursor movement immediately before.
I think that Gecko's behavior is reasonable for users from point of view of
style editing.  However, for providing consistent behavior between browsers,
we should collapse selection to end of left paragraph's text node when joining
paragraphs.  Then, web apps do not need to arrange `Selection` for consistent
behavior between browsers and we can keep the Gecko's better style handling.

Differential Revision: https://phabricator.services.mozilla.com/D167743

bugzilla-url: https://bugzilla.mozilla.org/show_bug.cgi?id=1808722
gecko-commit: 3205795f498ad716b4d9bc618000835de4bf29e0
gecko-reviewers: m_kato