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#ifndef __libardour_midi_ui_h__
#define __libardour_midi_ui_h__

#include <list>

#include "pbd/abstract_ui.h"
#include "pbd/signals.h"

namespace MIDI {
	class Port;
}

namespace ARDOUR {

class Session;

/* this is mostly a placeholder because I suspect that at some
   point we will want to add more members to accomodate
   certain types of requests to the MIDI UI
*/

struct MidiUIRequest : public BaseUI::BaseRequestObject {
  public:
	MidiUIRequest () {}
	~MidiUIRequest() {}
};

class MidiControlUI : public AbstractUI<MidiUIRequest>
{
  public:
	MidiControlUI (Session& s);
	~MidiControlUI ();

	static MidiControlUI* instance() { return _instance; }

	static BaseUI::RequestType PortChange;

	void change_midi_ports ();

  protected:
	void thread_init ();
	void do_request (MidiUIRequest*);

  private:
	typedef std::list<GSource*> PortSources;
	PortSources port_sources;
	ARDOUR::Session& _session;
	PBD::ScopedConnection rebind_connection;

	bool midi_input_handler (Glib::IOCondition, MIDI::Port*);
	void reset_ports ();
	void clear_ports ();

	static MidiControlUI* _instance;
};

}

#endif /* __libardour_midi_ui_h__ */