automatically create a new extender if we don't have one and an extender is requested

svn path=/trunk/KDE/kdebase/workspace/libs/plasma/; revision=862085

applet.cpp

@@ -504,6 +504,10 @@ void Applet::initExtenderItem(ExtenderItem *item)
 
 Extender *Applet::extender() const
 {
+    if (!d->extender) {
+        new Extender(const_cast<Applet*>(this));
+    }
+
     return d->extender;
 }