>On Thu, 2005-07-07 at 10:24 +0930, ext Chris Warren-Smith wrote:
>> I managed to get a non-gtk app to integrate with the
>> taskswitcher. Here's a screenshot:
>> http://www.twpo.com.au/cwarrens/n770/mandelbrot.jpeg
>> Non-gtk apps just needs to use _NET_ACTIVE_WINDOW
>> and _NET_CLIENT_LIST atoms, as well as following the
>> maemo integration instructions.
>
>Actually applications are supposed to be working without manually
>managing those bits.
>
>On any compliant desktop, the window manager manages two properties in
>the root window: _NET_CLIENT_LIST and _NET_ACTIVE_WINDOW - the first
>listing all application windows and the latter indicating the currently
>active one. (Having the information in the root window enables all
>kinds of task switchers and window list applets nicely synchronize each
>other.)
<snip>
Hi Tommi,
Thank you for a very informative respose. My theory about _NET_ACTIVE_WINDOW
was wrong but I think I've now found the correct solution.
The root window sends _NET_ACTIVE_WINDOW to raise the window just as you
indicated but there's a problem in handle_active_window_prop(). It uses
the root window ID to obtain the applications WM_CLASS attribute but only
uses this to check the "Home" window.
I think handle_active_window_prop() should contain something like this:
....
/* No WM_CLASS set? Need to check if it's Home... */
if (wm_class_str == NULL)
{
gdk_error_trap_push();
XGetWindowProperty(GDK_DISPLAY(), realwin_value.window_value[0],
wm_class_atom, 0, 24,
False, XA_STRING, &actual_type, &actual_format,
&nitems, &bytes_after, &local_wm_class);
gdk_error_trap_pop();
if (local_wm_class == NULL) {
/* application error */
return;
}
if (strcmp(local_wm_class, HOME_WMCLASS) == 0) {
/* It's Home. Ask Application switcher to depress the icon */
wm_cbs.topped_desktop_cb(wm_cbs.cb_data);
XFree(local_wm_class);
return;
} else if (is_window_hildonapp(realwin_value.window_value[0])) {
/* hildon apps send their own _NET_ACTIVE_WINDOW messages */
XFree(local_wm_class);
return;
} else {
/* make win_id point to non-hildon app window in lieu root window */
/* note: const removed from func signature */
win_id = realwin_value.window_value[0];
/* top_view() assumes view-id is 0 for non-hildon apps */
value.window_value[0] = 0;
/* point to WM_CLASS of non-hildon app */
wm_class_str = local_wm_class;
/* continue processing below */
}
}
...
The only special thing the non-gtk/hildon app code needs to do is call
osso_initialize.
With this change I can switch to/from maemopad and maldelbrot w/out
and problems.
Regards,
Chris
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