Multiscreen

[rentzsch]

Hi Nicholas,

I'm guessing you don't want Shroud to cover all your screens, but I think I do. Here's my version if you want to pull it into the mainline.

-jwr

[nriley]

Yup, I did mention that in the help :-) I'm going to make this optional but I will merge your changes in a couple weeks—I’m in the process of moving right now.

Thanks for the contribution!

[rentzsch]

I've updated my Pull Request with a couple of bug fixes/

[nriley]

Ha, totally missed those :-) Thanks. I noticed a race in a bugfix I just added, hope to get to it next week too.

[nriley]

If you just close and reopen the Shroud windows whenever the display layout changes, it messes with the window stacking order (i.e., you end up with a big gray screen). I think the easiest way to fix this would be to iterate through the screen windows, closing windows for nonexistent screens and resizing those for still-extant screens as necessary. (The menubar Spaces bug workaround code may have been a bit of a red herring because it has a fixed stacking order.)

Another issue is where to put the window for a newly attached screen. I think it would make sense to use the same stacking order as the main screen window; -[NSWindow orderWindow:relativeTo:] should hopefully behave as expected.

[nriley]

Shroud 1.2 is rewritten to use -[NSWindow orderWindow:relativeTo:], with support for hiding/showing Shroud's backdrop that saves/restores window stacking order. I have noticed some flakiness in places (e.g. with Spaces), but it does seem to mostly behave as expected.

This will get more complicated with multiple displays, and I haven't looked at Mavericks yet — but it's a start.�

(Note: I realize from Edge Cases that your use case for Shroud is very different from mine, and none of this stacking stuff really matters to you — just updating this request for anyone else who's watching.)