From 421bf22ac7a165f0f4d5608ffa22c887ff857d53 Mon Sep 17 00:00:00 2001
From: okan <okan>
Date: Tue, 21 May 2013 00:29:20 +0000
Subject: handle _NET_WM_STATE ClientMessage; from Alexander Polakov.

---
 xutil.c | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

(limited to 'xutil.c')

diff --git a/xutil.c b/xutil.c
index 95bb0d4..2c678dd 100644
--- a/xutil.c
+++ b/xutil.c
@@ -439,6 +439,43 @@ xu_ewmh_get_net_wm_state(struct client_ctx *cc, int *n)
 	return (state);
 }
 
+void
+xu_ewmh_handle_net_wm_state_msg(struct client_ctx *cc, int action,
+    Atom first, Atom second)
+{
+	int i;
+	static struct handlers {
+		int atom;
+		int property;
+		void (*toggle)(struct client_ctx *);
+	} handlers[] = {
+		{ _NET_WM_STATE_MAXIMIZED_VERT,
+			CLIENT_VMAXIMIZED,
+			client_vmaximize },
+		{ _NET_WM_STATE_MAXIMIZED_HORZ,
+			CLIENT_HMAXIMIZED,
+			client_hmaximize },
+	};
+
+	for (i = 0; i < nitems(handlers); i++) {
+		if (first != ewmh[handlers[i].atom].atom &&
+		    second != ewmh[handlers[i].atom].atom)
+			continue;
+		switch (action) {
+		case _NET_WM_STATE_ADD:
+			if ((cc->flags & handlers[i].property) == 0)
+				handlers[i].toggle(cc);
+			break;
+		case _NET_WM_STATE_REMOVE:
+			if (cc->flags & handlers[i].property)
+				handlers[i].toggle(cc);
+			break;
+		case _NET_WM_STATE_TOGGLE:
+			handlers[i].toggle(cc);
+		}
+	}
+}
+
 void
 xu_ewmh_restore_net_wm_state(struct client_ctx *cc)
 {
-- 
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