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DBusMprisProxy.h

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+/* 
+ * File:   DBusMprisProxy.h
+ * Author: SET - nmset@netcourrier.com
+ * License : GPL V2
+ *
+ * Created on 10 décembre 2017, 22:23
+ */
+
+#ifndef DBUSMPRISPROXY_H
+#define DBUSMPRISPROXY_H
+
+#include "mpris_proxy.hpp"
+
+#define FFR_STEP 5000000 // Fast forward and rewind by 5 secs
+#define FFR_STEP_QUICK 50000000 // 50 secs
+
+/**
+ * Sends DBus commands to an MPRIS compliant media player.
+ * @param connection
+ * @param service
+ */
+
+class DBusMprisProxy : public org::mpris::MediaPlayer2::Player_proxy,
+public DBus::IntrospectableProxy,
+public DBus::ObjectProxy
+{
+public:
+    /**
+     * 
+     * @param connection
+     * @param service : pedal.event, from application POD7.
+     */
+    DBusMprisProxy(DBus::Connection &connection, const char * service);
+    virtual ~DBusMprisProxy();
+
+    /**
+     * Advances the media position by step milliseconds,
+     * pausing 200 milliseconds between steps.
+     * Runs in a detached thread. 
+     * @param step
+     */
+    void FastForward(const int& step);
+    /**
+     * Moves back the media position by step milliseconds,
+     * pausing 200 milliseconds between steps.
+     * Runs in a detached thread.
+     */
+    void Rewind(const int& step);
+    /**
+     * Sets a flag that allows running threads to end.
+     */
+    void Reset();
+    /**
+     * Rewinds specified milliseconds before starting playback.
+     * An unavoidable feature for transcriptionists.
+     */
+    void AutoRewind();
+private:
+    /**
+     * Flag controlling thread lifetime.
+     */
+    static bool m_break;
+    static int DoFastForward(DBusMprisProxy * obj, const int& step);
+    static int DoRewind(DBusMprisProxy * obj, const int& step);
+};
+
+#endif /* DBUSMPRISPROXY_H */
+