4 files changed, 37 insertions, 2 deletions
diff --git a/src/globals.c b/src/globals.c
index 91467c3..5f21148 100644
--- a/src/globals.c
+++ b/src/globals.c
@@ -50,6 +50,8 @@ Atom rp_selection;
 /* netwm atoms */
 Atom _net_wm_pid;
 Atom _net_supported;
+Atom _net_wm_window_type;
+Atom _net_wm_window_type_dialog;
 
 int rp_current_screen;
 rp_screen *screens;
diff --git a/src/globals.h b/src/globals.h
index 2f0126f..b7aaa00 100644
--- a/src/globals.h
+++ b/src/globals.h
@@ -114,8 +114,10 @@ extern Atom wm_take_focus;
 extern Atom wm_colormaps;
 
 /* netwm atoms. */
-Atom _net_wm_pid;
-Atom _net_supported;
+extern Atom _net_wm_pid;
+extern Atom _net_supported;
+extern Atom _net_wm_window_type;
+extern Atom _net_wm_window_type_dialog;
 
 /* mouse properties */
 extern int rat_x;
diff --git a/src/main.c b/src/main.c
index c255a17..48fdb88 100644
--- a/src/main.c
+++ b/src/main.c
@@ -685,6 +685,8 @@ main (int argc, char *argv[])
   PRINT_DEBUG (("_NET_WM_PID = %ld\n", _net_wm_pid));
   _net_supported = XInternAtom(dpy, "_NET_SUPPORTED", False);
   PRINT_DEBUG (("_NET_SUPPORTED = %ld\n", _net_supported));
+  _net_wm_window_type = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False);
+  _net_wm_window_type_dialog = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DIALOG", False);
 
   /* Setup signal handlers. */
   XSetErrorHandler(handler);
diff --git a/src/manage.c b/src/manage.c
index 1b12c58..8bad332 100644
--- a/src/manage.c
+++ b/src/manage.c
@@ -317,6 +317,32 @@ window_is_transient (rp_window *win)
     ;
 }
 
+static Atom
+get_net_wm_window_type (rp_window *win)
+{
+  Atom type, window_type = None;
+  int format;
+  unsigned long nitems;
+  unsigned long bytes_left;
+  unsigned char *data;
+
+  if (win == NULL)
+    return None;
+
+  if (XGetWindowProperty (dpy, win->w, _net_wm_window_type, 0, 1L,
+                          False, XA_ATOM, &type, &format,
+                          &nitems, &bytes_left,
+                          &data) == Success && nitems > 0)
+    {
+      window_type = *(Atom *)data;
+      PRINT_DEBUG(("hey ya %ld %ld\n", window_type, _net_wm_window_type_dialog));
+    }
+  XFree (data);
+
+  return window_type;
+}
+
+
 void
 update_window_information (rp_window *win)
 {
@@ -339,6 +365,9 @@ update_window_information (rp_window *win)
   /* Transient status */
   win->transient = XGetTransientForHint (dpy, win->w, &win->transient_for);
 
+  if (get_net_wm_window_type(win) == _net_wm_window_type_dialog)
+    win->transient = 1;
+
   update_window_gravity (win);
 }