Add warning when creating a meeting on channels

[larkox]

Channels (public and private) may have lots of people in the channel, and creating a meeting on those is oftentimes a mistake or a missclick. We would like to add a confirmation message when creating a meeting on public and private channels, warning the user they are about to create a meeting in a channel with X users, with a button to create the meeting either way.

[maisnamrajusingh]

@larkox will something like this do ?

[larkox]

@aaronrothschild would be the right person to ask about the final aesthetics, but the idea would be that, yes.

Also, I guess that is meant to be a Custom Post type. It would be nice to have also a "Interactive Message" version so mobile clients can also interact. If I am not mistaken the "start meeting" message behaves in the same way (i.e. having the two versions).

[aaronrothschild]

Thanks @larkox , agreed with interactive Message for mobile clients.

Please remove the "Confirm you want to start the meeting" part of the message.

Change the button to read "Create Meeting"

[maisnamrajusingh]

@aaronrothschild are there any references I could use for the Mobile clients ? I'll send out an interim PR for now with the above mentioned changes.

[aaronrothschild]

@aaronrothschild are there any references I could use for the Mobile clients ? I'll send out an interim PR for now with the above mentioned changes.

I think this should give you an idea - https://docs.mattermost.com/developer/interactive-messages.html

@larkox may have some samples of code