consideration when deciding whether or not to allow dwm to quit
As per the original patch
https://dwm.suckless.org/patches/onlyquitonempty/
it used XQueryTree to get a count of the number of windows open to
determine whether to allow the window manager to exit.
This meant that the empty quit count variable would have to take
into account background windows such as the bar, which has side
effects like plugging in another monitor could mean that you would
not longer be allowed to quit dwm until the monitor is removed.
Likewise a systray and each systray icon would give a +1 to the
number of windows in the system.
This is unintuitive to understand and convoluted to explain, hence
the refactoring here to use the more sane approach of only counting
the number of client windows that the window manager manages.
This is an old idea which was intentionally not added to
dwm-flexipatch due to the aim of staying true to the original patch
(as in if you were to patch that manually you would get the same
experience as you had when trying the patch out in dwm-flexipatch).
This is ref. discussion in #194.
The original statuscmd patch has been renamed to statuscmd-nosignal
to separate the logic from the dwmblocks integration that involves
signals. I assume as the latter has become more popular it has replaced
the statuscmd in name.
mechanism from SIGUSR1 to SIGRTMIN which is likely to cause issues for
those that already have a working setup. A compatibility option has been
added which changes this back to SIGUSR1. Note that configuration was
also changed.
This was ref. reported issue #114.
Unified tag icon handling while adding support for different icons per monitor.
In general LENGTH(tags) has been replaced with a NUMTAGS macro (defaulting to 9)
and the tags[] array has been replaced with a tagicons[][] array, access to which
is done through a single function tagicon.
This allows one central place where alternative tags, alttagsdecoration, or other
future tags logic is handled. This also gives a consistent display of tags
regardless of the module that presents tags.
Additionally the monitor index has been integrated into dwm for easier access.
