GNU bug report logs - #16097
Treat windows on other spaces as not visible in Cocoa

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From: David Benjamin <davidben <at> google.com>
To: 16097 <at> debbugs.gnu.org
Subject: bug#16097: [PATCH] Treat windows on other spaces as not visible in Cocoa
Date: Mon, 9 Dec 2013 20:42:22 -0500

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Here's a patch for something that's been bugging me. This makes Cmd-` cycle
through only the current space's windows, which is consistent with other
programs on OS X. It also matches the behavior of other-frame on X11 for
window managers that implement virtual desktops by mapping and unmapping
windows. The patch is attached.

It's not perfect; if you go into Mission Control or so and move a window
onto another space without switching spaces, it won't notice until you
switch spaces again. I wasn't able to find a notification to listen to;
it'd be nice to replace the visible field in a frame with some virtual call
that, in Cocoa, would just call out to [win isVisible] and [win
isOnActiveSpace], but that'd be a more invasive change. It also doesn't fix
the behavior where closing the last window on a space warps you to a window
on another space. I'm not sure yet what's causing that.

As far as copyright goes, if this is a large enough change to matter (a
decent chunk of the diff is just moving some code around), I'm a Google
employee. I'm told we already have an agreement on file with the FSF.

David Benjamin

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[0001-In-nsterm-update-frame-visibility-on-space-change-an.patch (application/octet-stream, attachment)]

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