Use CTRL + ENTER to insert new lines

[jooola]

The common way of adding a new line in a message has been to hit CTRL + ENTER. This behavior can be seen in Telegram, Slack, Mattermost, and many others.

Some apps also allowed to invert the behavior if user would like to. Meaning that newline is inserted by hitting ENTER, and message is only send when hitting CTRL + ENTER.

My request is to follow this common pattern. I just found out that I could insert new lines by hitting SHIFT + ENTER, since I always though if this behavior were implemented it would be bound to the CTRL+ENTER combo.

Also It would be nice to allow users to configure the send message behavior described previously.

[t3chguy]

Ctrl Enter is non-standard,

typically it is

Shift Enter new line
Control Enter confirm/send
Enter is one of the above.

Related to #5006

[skolmer]

I'm on Windows and CTRL+Enter is the standard to add new lines in messengers like Telegram, Skype, Teams and Slack. Not sure about other Systems though. If you are used to this behavior and press those keys in element, the message is send directly.

[t3chguy]

Slack's docs disagree:

https://slack.com/intl/en-gb/help/articles/201374536-Slack-keyboard-shortcuts

[skolmer]

That's interesting, I tested it and Shift+Enter is working indeed. I'm using Ctrl+Enter in Slack for years now, wasn't aware that Shift+Enter is working too. I searched through my Slack settings but the only setting I could find was to reassign the shortcut.

[skolmer]

I also tested Shift+Enter in Skype and Telegram and it works too. It seems both are the standard!? 🙃
The only explanation I have right now is that it has changed at some time because people like me were always confused when Ctrl+Enter in a Webform, like on GitHub, directly submitted the comment.
Should both be supported like in those other messengers? Definitely needs some research!
We might at least agree that Ctrl+Enter should never submit a message if it is not explicitly set by a setting as described in #5006.
I'm definitly using Shift+Enter from now on everywhere because it is working on GitHub too 😁

[t3chguy]

Element now has a preference between Enter's functionality of Send vs Newline, for further changes closing in favour of #15076