From 20b1fd4293b496341523686e93312f6ee73e1df8 Mon Sep 17 00:00:00 2001
From: Michael Stapelberg <michael@stapelberg.de>
Date: Wed, 30 Mar 2011 23:00:48 +0200
Subject: [PATCH] Skip FocusIn events with mode == NOTIFY_MODE_GRAB or
 NOTIFY_MODE_UNGRAB

According to the Xlib Programming Manual section 10.7.2 [1], these events are
generated when keyboard grabs activate/deactivate, while we are only interested
in focus changes which are done by other programs independend from the
keyboard.

[1] http://tronche.com/gui/x/xlib/events/input-focus/grab.html
---
 src/handlers.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/handlers.c b/src/handlers.c
index f1c6128b..ac0fd87a 100644
--- a/src/handlers.c
+++ b/src/handlers.c
@@ -896,6 +896,12 @@ static int handle_focus_in(xcb_focus_in_event_t *event) {
         return 1;
     DLOG("That is con %p / %s\n", con, con->name);
 
+    if (event->mode == XCB_NOTIFY_MODE_GRAB ||
+        event->mode == XCB_NOTIFY_MODE_UNGRAB) {
+        DLOG("FocusIn event for grab/ungrab, ignoring\n");
+        return 1;
+    }
+
     if (event->detail == XCB_NOTIFY_DETAIL_POINTER) {
         DLOG("notify detail is pointer, ignoring this event\n");
         return 1;
-- 
2.39.5