From 1ae4426ec894236417579b62b97b39083482ccc1 Mon Sep 17 00:00:00 2001
From: Daiki Ueno <ueno@unixuser.org>
Date: Mon, 13 Jun 2011 18:52:06 +0900
Subject: [PATCH] Make sure XTest extension is available.

---
 src/client.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/client.c b/src/client.c
index 5dde1674..af49ca0e 100644
--- a/src/client.c
+++ b/src/client.c
@@ -895,11 +895,20 @@ update_modifier_keycodes (EekboardClient *client)
 gboolean
 eekboard_client_enable_xtest (EekboardClient *client)
 {
+    int event_base, error_base, major_version, minor_version;
+
     if (!client->display) {
         client->display = gdk_display_get_default ();
     }
     g_assert (client->display);
 
+    if (!XTestQueryExtension (GDK_DISPLAY_XDISPLAY (client->display),
+                              &event_base, &error_base,
+                              &major_version, &minor_version)) {
+        g_warning ("XTest extension is not available");
+        return FALSE;
+    }
+                             
     update_modifier_keycodes (client);
 
     client->key_pressed_handler =