From 5a0e425ef7a6420297d12dfe69f6a99d307f5984 Mon Sep 17 00:00:00 2001
From: okan
Date: Thu, 12 Dec 2013 20:15:07 +0000
Subject: ICCCM explicitly states that server time (CurrentTime) should *not*
 be used for focus events, but rather the timestamp of the generated event.
 Track the last event timestamp and send it down for a WM_TAKE_FOCUS
 ClientMessage.  I suspect we should do this for clients that don't announce
 this Atom as well, though the raciness gets us into a bind.

Solves focus order issue since WM_TAKE_FOCUS; fix verified by sthen@

ok sthen@
---
 calmwm.c  |  3 ++-
 calmwm.h  |  5 +++--
 client.c  | 13 ++++++++-----
 xevents.c |  4 +++-
 4 files changed, 16 insertions(+), 9 deletions(-)

diff --git a/calmwm.c b/calmwm.c
index b44196c..d6bc6a1 100644
--- a/calmwm.c
+++ b/calmwm.c
@@ -15,7 +15,7 @@
  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  *
- * $OpenBSD: calmwm.c,v 1.80 2013/07/15 14:50:44 okan Exp $
+ * $OpenBSD: calmwm.c,v 1.81 2013/12/12 20:15:07 okan Exp $
  */
 
 #include <sys/param.h>
@@ -37,6 +37,7 @@
 
 char				**cwm_argv;
 Display				*X_Dpy;
+Time				 Last_Event_Time = CurrentTime;
 Atom				 cwmh[CWMH_NITEMS];
 Atom				 ewmh[EWMH_NITEMS];
 
diff --git a/calmwm.h b/calmwm.h
index 8ce7bdc..c479077 100644
--- a/calmwm.h
+++ b/calmwm.h
@@ -15,7 +15,7 @@
  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  *
- * $OpenBSD: calmwm.h,v 1.233 2013/12/11 15:41:11 okan Exp $
+ * $OpenBSD: calmwm.h,v 1.234 2013/12/12 20:15:07 okan Exp $
  */
 
 #ifndef _CALMWM_H_
@@ -316,6 +316,7 @@ struct mwm_hints {
 #define	MWM_DECOR_BORDER	(1<<1)
 
 extern Display				*X_Dpy;
+extern Time				 Last_Event_Time;
 extern struct screen_ctx_q		 Screenq;
 extern struct client_ctx_q		 Clientq;
 extern struct conf			 Conf;
@@ -381,7 +382,7 @@ void 			 client_htile(struct client_ctx *);
 void			 client_lower(struct client_ctx *);
 void			 client_map(struct client_ctx *);
 void			 client_maximize(struct client_ctx *);
-void			 client_msg(struct client_ctx *, Atom);
+void			 client_msg(struct client_ctx *, Atom, Time);
 void			 client_move(struct client_ctx *);
 struct client_ctx	*client_init(Window, struct screen_ctx *, int);
 void			 client_ptrsave(struct client_ctx *);
diff --git a/client.c b/client.c
index f63a66a..5a0005f 100644
--- a/client.c
+++ b/client.c
@@ -15,7 +15,7 @@
  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  *
- * $OpenBSD: client.c,v 1.159 2013/12/11 22:14:23 okan Exp $
+ * $OpenBSD: client.c,v 1.160 2013/12/12 20:15:07 okan Exp $
  */
 
 #include <sys/param.h>
@@ -168,6 +168,9 @@ client_setactive(struct client_ctx *cc)
 	struct screen_ctx	*sc = cc->sc;
 	struct client_ctx	*oldcc;
 
+	if (cc->flags & CLIENT_HIDDEN)
+		return;
+
 	XInstallColormap(X_Dpy, cc->colormap);
 
 	if ((cc->flags & CLIENT_INPUT) ||
@@ -176,7 +179,7 @@ client_setactive(struct client_ctx *cc)
 		    RevertToPointerRoot, CurrentTime);
 	}
 	if (cc->flags & CLIENT_WM_TAKE_FOCUS)
-		client_msg(cc, cwmh[WM_TAKE_FOCUS]);
+		client_msg(cc, cwmh[WM_TAKE_FOCUS], Last_Event_Time);
 
 	if ((oldcc = client_current())) {
 		oldcc->active = 0;
@@ -511,7 +514,7 @@ client_wm_hints(struct client_ctx *cc)
 }
 
 void
-client_msg(struct client_ctx *cc, Atom proto)
+client_msg(struct client_ctx *cc, Atom proto, Time ts)
 {
 	XClientMessageEvent	 cm;
 
@@ -521,7 +524,7 @@ client_msg(struct client_ctx *cc, Atom proto)
 	cm.message_type = cwmh[WM_PROTOCOLS];
 	cm.format = 32;
 	cm.data.l[0] = proto;
-	cm.data.l[1] = CurrentTime;
+	cm.data.l[1] = ts;
 
 	XSendEvent(X_Dpy, cc->win, False, NoEventMask, (XEvent *)&cm);
 }
@@ -530,7 +533,7 @@ void
 client_send_delete(struct client_ctx *cc)
 {
 	if (cc->flags & CLIENT_WM_DELETE_WINDOW)
-		client_msg(cc, cwmh[WM_DELETE_WINDOW]);
+		client_msg(cc, cwmh[WM_DELETE_WINDOW], CurrentTime);
 	else
 		XKillClient(X_Dpy, cc->win);
 }
diff --git a/xevents.c b/xevents.c
index f972ab9..e933ebb 100644
--- a/xevents.c
+++ b/xevents.c
@@ -15,7 +15,7 @@
  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  *
- * $OpenBSD: xevents.c,v 1.97 2013/12/11 15:41:11 okan Exp $
+ * $OpenBSD: xevents.c,v 1.98 2013/12/12 20:15:07 okan Exp $
  */
 
 /*
@@ -212,6 +212,8 @@ xev_handle_enternotify(XEvent *ee)
 	XCrossingEvent		*e = &ee->xcrossing;
 	struct client_ctx	*cc;
 
+	Last_Event_Time = e->time;
+
 	if ((cc = client_find(e->window)) != NULL)
 		client_setactive(cc);
 }
-- 
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