Take screenshot from Primary window when using multiple monitors

[mmikhan]

When using multiple monitors, the script couldn't detect any monitor as when using multiple monitors, it never returns the Entire screen as the source name. So, I've fixed the issue.

Now when there are multiple monitors, the script will take screenshot from the primary monitor.

[mixalbl4-127]

I have tested on multiple monitors, in my linux "Entire screen" returns picture for all monitors together.
What system do you use? Do you haven't "Entire screen" in sources when you use multi-monitor?
This code isn't correct if (sources[i].name === "Entire screen" || sources[i].name === "Screen 1"), because if in sources you have "Entire screen" and "Screen 1" too, callback will be called twice.

If your system isn't combine pictures from all monitors to one picture, we will need get all pictures and combine it to one manualy, after that we can call callback once with 1 pictures.
Or we can to get all pictures from all monitors and return array of pictures.
But, in my system it happens automatically and I can't do it, because I can't test it.

[mmikhan]

I'm using macOS Sierra. In this OS, it returns Screen 1, Screen 2 when you've multiple monitors. Not sure about the Linux. What distro are you using? I am also unable to test it on Linux as I don't have a Linux setup on my end.

If the Linux returns Entire Screen and Screen 1 too, then the code is wrong. But, I'm not sure what Linux returns. Can you please let me know what Linux returns and in which distro?

[mixalbl4-127]

I'm using Linux mint 18
Linux mixa-corporation 3.19.0-32-generic #37~14.04.1-Ubuntu SMP Thu Oct 22 09:41:40 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
In my case, when I use multi-monitor in I've only Entire Screen with two monitor pictures combined to one picture like in monitor setup http://s3.micp.ru/ahmpc.png

[mmikhan]

Aah, In this case, we'll need to check for OS first, then we'll need to take the screenshot. In this case, since the Linux Mint 18 distro only returns the Entire Screen, I'll write check for macOS Sierra.

[mixalbl4-127]

I think we can detect all monitors (with Entire Screen too) and if we have only one monitor, we'll return only one screenshot like now, but if we have 1+ monitors we`ll make 1+ screenshots and return array with screenshots
This is better way then detect OS

[mmikhan]

But what would be the use case of multiple screenshots when we've multiple monitors?

[mixalbl4-127]

I`ll think about it