Hello,
I'm trying to teach Debian emacs-snapshot to stay on workspace #4, as
defined in WMWindowAttributes. The stubborn application listens only
partially: it will /not/ start where instructed, but on whatever desktop
happens to be displayed, but it _will_ StartMaximized, also requested in
WMWindowAttributes.
My WMWindowAttributes contains two instances of emacs, one for
emacs-snapshot, and one for emacs23. I quote:
,----
| emacs-snapshot.Emacs = {
| StartWorkspace = "Workspace 4";
| StartMaximized = Yes;
| };
| emacs23.Emacs = {
| StartWorkspace = "Workspace 4";
| };
`----
If I launch emacs23 from desktop#[1-6] the application will
start on desktop#4. I want the same from emacs-snapshot.
I've run a bunch of xprop to check if it something to do with the
WM_CLASS. I see four versions:
1) emacs-snapshot (the application itself)
WM_CLASS(STRING) = "emacs-snapshot", "Emacs"
2) emacs-snapshot (the pop-up that appears when closing emacs using
WindowMakers [x])
WM_CLASS(STRING) = "emacs-snapshot", "Emacs-snapshot"
3) emacs23 (app)
WM_CLASS(STRING) = "emacs23", "Emacs"
4) emacs23 (pop-up)
WM_CLASS(STRING) = "emacs23", "Emacs23"
I noticed that it makes a difference whether or not I use quote
marks. If I define WMWindowAttributes like this (note the "):
"emacs-snapshot.Emacs-snapshot" = {
StartWorkspace = "Workspace 4";
StartMaximized = Yes;
};
then the pop up (in 2, above) will become maximized on desktop 4,
irrespective of what desktop is displayed. If I remove the quote marks,
the pop up will not maximize and will be on whatever desktop happens to
be displayed.
So, naturally I tried "emacs-snapshot.Emacs", but that does not put
emacs-snapshot on the intended desktop.
I wonder if my definition in WMWindowAttributes is correct. One clue is
that emacs and emacs-snapshot are actually emacs-snapshot-gtk, per
/etc/alternatives. But even if I edit WMWindowAttributes to read:
emacs.Emacs
or
emacs-snaphot-gtk.Emacs
with and without ", it still won't go to desktop#4.
So, maybe WM_Class has other values, hidden somewhere, or WindowMaker
looks in another place for WM_CLASS.
Anyone here know more about the internals? There is a bug report on
Ubuntu,
https://bugs.launchpad.net/ubuntu/+source/emacs23/+bug/725988
that mentions: "emacs ships an emacs.desktop file, but the Debian source
package uses its own emacsVER.desktop file. Unfortunately, this messes
up libraries like the shell application trackers and bamf that use
WM_CLASS as a basis for the application."
I'm guessing this has something to do with it.
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