Hello Freedesktop,
This is my first mail to the list, so I am not sure if this is the
correct approach to ask about this. And I am not sure how the procedure
for proposing changes or additions to an existing specification works.
Please feel free to suggest alternative approaches if this is the wrong
place to discuss my problem.
I have the following problem: I would like to programmatically change
the size of a window and be able to increase its size such that is fills
the whole work area on the current monitor. Currently on GTK+ this is
only possible for the primary monitor, because the implementation of
gdk_screen_get_monitor_workarea does not support multiple monitors.
Instead for non primary monitors I can only get the monitor geometry
which maybe wrong if there are panels on the secondary monitor. I have
discussed this issue in [2], but as I am being told this is a limitation
of the underlying EWMH protocol (specifically _NET_WORKAREA), which does
not support to query for individual monitors. In stead of the actual
workarea the GDK implementation currently just returns the monitor
geometry for non primary monitors. This leads to problems when resizing
the application window in the interval between the workarea and monitor
geometry (e.g. when I try to set the height to a value that exceeds the
avaliable height or the workarea).
I would like to ask if it is possible to extend the EWMH spec [1] and
add a new hint which could be named for example "_NET_WORKAREA_MONITOR",
the purpose would be to enable applications to query the maximum
available work area information on a per monitor basis. Since its
possible to query if a window manager supports a certain hin, libraries
and applications could check if this hint is supported and just fall
back to their current implementation if its not supported.
I am not an expert for either X or Window Manager development, so maybe
I got it all wrong and there are better solutions how this can be fixed,
in this case I would like to hear about your suggestions it.
Best Regards
Sebastian
[1]: http://standards.freedesktop.org/wm-spec/wm-spec-latest.html
[2]: https://bugzilla.gnome.org/show_bug.cgi?id=755699
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