add function screen_compare_desktops()

tells if two windows' current desktops are considered logically on the same
  desktop (taking "all desktops" into account)
if a window is on "all desktops" it is considered to be on the current desktop
  only - windows can only be in one place at a time.

1 files changed, 9 insertions, 0 deletions

diff --git a/openbox/screen.c b/openbox/screen.c
index a94347ed..e0277ede 100644
--- a/openbox/screen.c
+++ b/openbox/screen.c
@@ -1753,3 +1753,12 @@ gboolean screen_pointer_pos(gint *x, gint *y)
     }
     return ret;
 }
+
+gboolean screen_compare_desktops(guint a, guint b)
+{
+    if (a == DESKTOP_ALL)
+        a = screen_desktop;
+    if (b == DESKTOP_ALL)
+        b = screen_desktop;
+    return a == b;
+}