[gtk+] [broadway] Fix typo in implicit grab support

[Alexander Larsson <alexl src gnome org>]

commit 9d974ca13aa92901fc18d5da0b14a656e409dc77
Author: Alexander Larsson <alexl redhat com>
Date:   Thu Apr 7 15:26:37 2011 +0200

    [broadway] Fix typo in implicit grab support
    
    We do an implicit grab if there is no grab already, not only if there is
    one.

 gdk/broadway/broadway.js |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gdk/broadway/broadway.js b/gdk/broadway/broadway.js
index 8a40605..63680b4 100644
--- a/gdk/broadway/broadway.js
+++ b/gdk/broadway/broadway.js
@@ -819,7 +819,7 @@ function onMouseDown (ev) {
     var id = getSurfaceId(ev);
     id = getEffectiveEventTarget (id);
     var pos = getPositionsFromEvent(ev, id);
-    if (grab.window != null)
+    if (grab.window == null)
 	doGrab (id, false, true);
     var button = ev.button + 1;
     lastState = lastState | getButtonMask (button);