[gnome-builder] colorpicker plugin: disable dnd on preview widget

[Christian Hergert <chergert src gnome org>]

commit 8efc61f745f3bd62502df071303517b55d60c39b
Author: Sebastien Lafargue <slafargue gnome org>
Date:   Thu Jul 14 15:37:26 2016 +0200

    colorpicker plugin: disable dnd on preview widget
    
    We don't want drag'n drop operations on the
    palette load/save preview widget.

 plugins/color-picker/gtk/color-picker-preview.ui |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/plugins/color-picker/gtk/color-picker-preview.ui 
b/plugins/color-picker/gtk/color-picker-preview.ui
index 2e498d0..8cb149f 100644
--- a/plugins/color-picker/gtk/color-picker-preview.ui
+++ b/plugins/color-picker/gtk/color-picker-preview.ui
@@ -21,6 +21,7 @@
       <object class="GstylePaletteWidget" id="preview_palette_widget">
         <property name="visible">1</property>
         <property name="expand">true</property>
+        <property name="dnd-lock">all</property>
       </object>
     </child>
   </object>