[MetaDisplay] meta_display_get_leader_window()

This function returns xid of the WM leader window (as defined by the
_NET_SUPPORTING_WM_CHECK mechanism of EWMH). For use by plugins that wish to
attach custom properties to this window.

https://bugzilla.gnome.org/show_bug.cgi?id=613125

src/core/display.c

@@ -5405,3 +5405,19 @@ Atom meta_display_get_atom (MetaDisplay *display, MetaAtom meta_atom)
 
   return atoms[meta_atom - 1];
 }
+
+/**
+ * meta_display_get_leader_window:
+ * @display: a #MetaDisplay
+ *
+ * Returns the window manager's leader window (as defined by the
+ * _NET_SUPPORTING_WM_CHECK mechanism of EWMH). For use by plugins that wish
+ * to attach additional custom properties to this window.
+ *
+ * Return value: (transfer none): xid of the leader window.
+ **/
+Window
+meta_display_get_leader_window (MetaDisplay *display)
+{
+  return display->leader_window;
+}

src/include/display.h

@@ -154,4 +154,6 @@ void meta_display_focus_the_no_focus_window (MetaDisplay *display,
 GSList *meta_display_sort_windows_by_stacking (MetaDisplay *display,
                                                GSList      *windows);
 
+Window meta_display_get_leader_window (MetaDisplay *display);
+
 #endif