Index: trunk/src/org/openstreetmap/josm/gui/NavigatableComponent.java
===================================================================
--- trunk/src/org/openstreetmap/josm/gui/NavigatableComponent.java	(revision 10404)
+++ trunk/src/org/openstreetmap/josm/gui/NavigatableComponent.java	(revision 10405)
@@ -315,7 +315,11 @@
 
     protected void updateLocationState() {
-        if (SwingUtilities.getWindowAncestor(this) != null && isShowing()) {
+        if (isVisibleOnScreen()) {
             state = state.usingLocation(this);
         }
+    }
+
+    protected boolean isVisibleOnScreen() {
+        return SwingUtilities.getWindowAncestor(this) != null && isShowing();
     }