Added MouseEventSpy as base for an auto shutdown

LenaPi/MouseEventSpy.h

@@ -0,0 +1,27 @@
+#ifndef MOUSEEVENTSPY_H
+#define MOUSEEVENTSPY_H
+
+#include <QObject>
+
+/**
+ * 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.
+*/
+class MouseEventSpy : public QObject
+{
+    Q_OBJECT
+public:
+    explicit MouseEventSpy(QObject *parent = 0);
+    static MouseEventSpy* instance();
+
+protected:
+    bool eventFilter(QObject* watched, QEvent* event);
+
+signals:
+    void mouseEventDetected();
+};
+
+#endif // MOUSEEVENTSPY_H