request - Multi Window support on Desktop

[neil969]

In the desktop Client, it would be good to be able to "pop out" or undock a conversation to allow multiple conversation windows open on the screen & active at once.
I find the lack of this an impediment to convincing people to use Signal as their "go-to" messaging application across devices.
(This is not a phone and should not be limited in functionality as if it were!)

[ab320012]

@scottnonnenberg I'd like to try my hand at this one, seems relatively straight forward. I'll add a MenuItem to ConversationHeader that calls popOut passed in from js/views/conversation-view.js
which will signal to the main process to open a new window, not sure if you prefer only seeing the conversation component in the new window or a copy of the whole app.

[scottnonnenberg-signal]

Supporting this would require a major architectural change for the app. I don't think we'll accept any pull requests for it in the near term - any external pull request has substantial cost for us; advising, reviewing, then testing. And we don't have the time for that right now.

The best thing you can do is rally support for this in the community so we can justify the time spent.

PS: Just one bit of the significant difficulty with that proposed change is synchronizing state between the popped out window and the primary window.

[D0han]

Such feature would be awesome for video calls, to pop it out to another screen