1 files changed, 48 insertions, 0 deletions
diff --git a/src/autolockeventfilter.h b/src/autolockeventfilter.h
new file mode 100644
index 0000000..2f05504
--- /dev/null
+++ b/src/autolockeventfilter.h
@@ -0,0 +1,48 @@
+#ifndef AUTOLOCKEVENTFILTER_H
+#define AUTOLOCKEVENTFILTER_H
+
+#include <QDebug>
+#include <QEvent>
+#include <QTimer>
+
+class AutoLockEventFilter : public QObject {
+  Q_OBJECT
+
+public:
+  explicit AutoLockEventFilter(int timeoutmillis)
+      : timeoutmillis(timeoutmillis) {
+    autoLockTimer = new QTimer(this);
+    connect(autoLockTimer, &QTimer::timeout, this,
+            QOverload<>::of(&AutoLockEventFilter::lockApp));
+    resetTimer();
+  }
+
+  ~AutoLockEventFilter() {
+    autoLockTimer->stop();
+    autoLockTimer->deleteLater();
+  }
+
+signals:
+  void autoLockTimerTimeout();
+
+private:
+  QTimer *autoLockTimer = nullptr;
+  int timeoutmillis;
+
+public slots:
+  void stopTimer() { autoLockTimer->stop(); }
+  void resetTimer() { autoLockTimer->start(timeoutmillis); }
+  void lockApp() { emit autoLockTimerTimeout(); }
+  void setTimeoutmillis(int newTimeoutmillis) {
+    timeoutmillis = newTimeoutmillis;
+  }
+
+protected:
+  bool eventFilter(QObject *obj, QEvent *ev) {
+    if (ev->type() == QEvent::KeyPress || ev->type() == QEvent::MouseMove) {
+      resetTimer();
+    }
+    return QObject::eventFilter(obj, ev);
+  }
+};
+#endif // AUTOLOCKEVENTFILTER_H