[Parti-discuss] [PATCH] allow xpra command line to specify window title suffix

[Nathaniel Smith]

On Tue, May 5, 2009 at 7:39 PM, Ethan Blanton <elb at psg.com> wrote:
> Nathaniel Smith spake unto us the following wisdom:
>> On Tue, May 5, 2009 at 6:31 PM, Ethan Blanton <elb at psg.com> wrote:
>> > ... with WM_CLIENT_MACHINE passed through transparently.  This seems
>> > the most appropriate course of action.  I'm not even convinced the
>> > (via xpra) should be there.
>>
>> The one downside to that is that WM_CLIENT_MACHINE may be used for
>> other purposes as well, e.g.:
>>   http://standards.freedesktop.org/wm-spec/wm-spec-1.3.html#KILLINGWINDOWS
>
> I don't see the problem, what am I missing?

If the xpra client goes off to la-la land, then modern WMs will
notice, and pop up a "hey, this app is unresponsive, do you want to
kill it?" dialog. And if you click "yes", then it'll actually kill the
app (not just disconnect it from the X server and leave it spinning in
the background and silently chewing all your cpu, no matter how
traditional that is, hi netscape 4). But this only works if
WM_CLIENT_MACHINE indicates that it's on the same host and kill(2)
will work.

This is a bit of a finicky detail, though, and of course, xpra
contains no bugs, so this will never come up.

I'm not sure if there are any other non-cosmetic uses of
WM_CLIENT_MACHINE... there could be in principle, but maybe not in
practice.

-- Nathaniel