ewmh: correctly set _NET_CURRENT_DESKTOP to the number of the active workspace

include/ewmh.h

@@ -0,0 +1,23 @@
+/*
+ * vim:ts=8:expandtab
+ *
+ * i3 - an improved dynamic tiling window manager
+ *
+ * © 2009 Michael Stapelberg and contributors
+ *
+ * See file LICENSE for license information.
+ *
+ */
+#ifndef _EWMH_C
+#define _EWMH_C
+
+/**
+ * Updates _NET_CURRENT_DESKTOP with the current desktop number.
+ *
+ * EWMH: The index of the current desktop. This is always an integer between 0
+ * and _NET_NUMBER_OF_DESKTOPS - 1.
+ *
+ */
+void ewmh_update_current_desktop();
+
+#endif