make it easy to track if the configuration dialog is around or not

svn path=/trunk/KDE/kdelibs/; revision=1082160

applet.cpp

@@ -1681,6 +1681,11 @@ void Applet::resizeEvent(QGraphicsSceneResizeEvent *event)
     emit geometryChanged();
 }
 
+bool Applet::isUserConfiguring() const
+{
+    return KConfigDialog::exists(d->configDialogId());
+}
+
 void Applet::showConfigurationInterface()
 {
     if (!hasConfigurationInterface()) {

applet.h

@@ -87,6 +87,7 @@ class PLASMA_EXPORT Applet : public QGraphicsWidget
     Q_PROPERTY(QRectF geometry READ geometry WRITE setGeometry)
     Q_PROPERTY(bool shouldConserveResources READ shouldConserveResources)
     Q_PROPERTY(uint id READ id)
+    Q_PROPERTY(bool userConfiguring READ isUserConfiguring)
 
     public:
         typedef QList<Applet*> List;
@@ -796,6 +797,12 @@ class PLASMA_EXPORT Applet : public QGraphicsWidget
          */
         virtual void showConfigurationInterface();
 
+        /**
+         * @return true when the configuration interface is being shown
+         * @since 4.5
+         */
+        bool isUserConfiguring() const;
+
         /**
          * Causes this applet to raise above all other applets.
          */