1851949 - contenteditable="plaintext-only" changes selection behavior

Status: RESOLVED FIXED

(Core :: DOM: Selection, defect)

Description

[[e-mail]]

User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/116.0

Steps to reproduce:

I have a table with contenteditable="true". When I select a cell and then press "Ctrl-A" all the cells of the table get selected. This is what I consider to be correct behavior.

If, however, I use contenteditable="plaintext-only", I select a cell, press "Ctrl-A", and a bunch of stuff outside the table also becomes selected. I believe this is incorrect.

Note that Chrome does not behave like this.

Actual results:

More text than the table entries got selected.

Expected results:

Only table cell entries should have been selected.

Comment 1

[BugBot [:suhaib / :marco/ :calixte]]

The Bugbug bot thinks this bug should belong to the 'Core::DOM: Selection' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Comment 2

[Sean Feng [:sefeng]]

Attachment: testcase.html

Yeah I can repo, NI myself to take a look

Comment 3

[[e-mail]]

This bug gets even weirder.

Even if you manually select the cells correctly, paste behavior still fails.

Comment 4

[Hsin-Yi Tsai (she/her) [:hsinyi]]

(In reply to Sean Feng [:sefeng] from comment #2)

Created attachment 9352052 [details]
testcase.html

Yeah I can repo, NI myself to take a look

https://bugzilla.mozilla.org/show_bug.cgi?id=1291467 is still open.

Comment 5

[Hsin-Yi Tsai (she/her) [:hsinyi]]

Setting the bug dependency, so when bug 1291467 is done, we remember to verify this.

Comment 6

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

Fixed in the Nightly channel.