Sharing a specific window / area

[Ivshti]

Sharing a specific window or an area would be a nice capability - chromium has it as a functionality, as it uses it for chromecasting.

By initial research, I assume this happens by setting chromeMediaSource to "desktop" and chromeMediaSourceId to a value returned by chooseDesktopMedia - https://developer.chrome.com/extensions/desktopCapture.

[max-mapper]

technically that is not implemented in chromium but in chromes 'chrome app' libraries, I opened an issue requesting support for it in electron a while back electron/electron#1380

[TheSisb]

Recently got merged into Electron (screen/window) electron/electron#2963

[max-mapper]

OH NICE FINALLY!!!

[max-mapper]

Docs for it are here: https://github.com/atom/electron/blob/9c861b9ad37a9c6335dde2e59d3005742fe75150/docs/api/desktop-capturer.md

This will let us implement a UI that asks the user what part of the screen they want to share. Currently we only share the entire screen. Being able to select only 1 screen would be pretty sweet :)

[max-mapper]

got it working in 9e93952

heres the UI I hacked up:

because of the way it changes screen sharing, audio chat is currently not hooked up. I'll need to hook that up again with more code

feedback welcome!

[TheSisb]

LGTM

[Raj123456788]

Can anyone please answer this question: electron/electron#4432