added EnergySaver intended to handle shutdown.

Moved timer from MouseEventSpy to EnergySaver.
Connected MouseEventSpy and MusicController to EnergySaver.

LenaPi/MouseEventSpy.h

@@ -2,36 +2,34 @@
 #define MOUSEEVENTSPY_H
 
 #include <QObject>
-#include <QTimer>
 #include <QEvent>
 
 /**
- * Catches all mouse event and starts timer -- basically behaves like a screensaver.
-* Based on
-* https://stackoverflow.com/questions/46173105/how-can-i-reset-a-timer-every-time-i-receive-a-touch-event-from-a-qml-page
-*
-* @todo implement timer and behavior on timeout.
-*/
+ * @brief Catches all mouse event and reports them via signal.
+ *
+ * Based on
+ * https://stackoverflow.com/questions/46173105/how-can-i-reset-a-timer-every-time-i-receive-a-touch-event-from-a-qml-page
+ */
 class MouseEventSpy : public QObject
 {
     Q_OBJECT
-public:
+
+protected:
     explicit MouseEventSpy(QObject *parent = 0);
+
+signals:
+    void mouseEventDetected();
+
+public:
+    static void init();
     static MouseEventSpy* instance();
 
 protected:
     bool eventFilter(QObject* watched, QEvent* event);
 
 private:
-    void initTimer(int interval);
     bool isMouseEvent(QEvent::Type t);
-    QTimer mTimer;
 
-private slots:
-    void onTimeout();
-
-signals:
-    void mouseEventDetected();
 };
 
 #endif // MOUSEEVENTSPY_H