[nautilus] Fix window dragging on the path bar

[Cosimo Cecchi <cosimoc src gnome org>]

commit 2fa90048ebf41af71bbae20e9c5934286a049d75
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Feb 15 20:44:43 2014 -0500

    Fix window dragging on the path bar
    
    GtkWindow relies on button press, release and motion notify
    events being propagated. Therefore, we need to select for
    motion notify events to make window dragging work.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=722542

 src/nautilus-pathbar.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/src/nautilus-pathbar.c b/src/nautilus-pathbar.c
index 9d94f28..7d51d56 100644
--- a/src/nautilus-pathbar.c
+++ b/src/nautilus-pathbar.c
@@ -739,7 +739,8 @@ nautilus_path_bar_realize (GtkWidget *widget)
        attributes.event_mask |= 
                GDK_SCROLL_MASK |
                GDK_BUTTON_PRESS_MASK |
-               GDK_BUTTON_RELEASE_MASK;
+               GDK_BUTTON_RELEASE_MASK |
+               GDK_POINTER_MOTION_MASK;
        attributes_mask = GDK_WA_X | GDK_WA_Y;
 
        path_bar->priv->event_window = gdk_window_new (gtk_widget_get_parent_window (widget),