[gtk+] entry: Avoid criticals

[Matthias Clasen <matthiasc src gnome org>]

commit ca077a085c88f67738b8237beb2316e031ec7281
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Jun 8 19:04:06 2015 -0400

    entry: Avoid criticals
    
    After the recent changes, we could end up calling
    gtk_entry_update_handles in cases where the text_handle
    has not be created (e.g. when dragging text from an entry).
    Avoid that.

 gtk/gtkentry.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtkentry.c b/gtk/gtkentry.c
index c617a92..eb83363 100644
--- a/gtk/gtkentry.c
+++ b/gtk/gtkentry.c
@@ -4574,7 +4574,8 @@ gtk_entry_multipress_gesture_pressed (GtkGestureMultiPress *gesture,
       gtk_gesture_set_state (priv->drag_gesture,
                              GTK_EVENT_SEQUENCE_CLAIMED);
 
-      gtk_entry_update_handles (entry, mode);
+      if (priv->text_handle)
+        gtk_entry_update_handles (entry, mode);
     }
 
   if (n_press >= 3)