third_party/blink/public/platform/modules/webmidi/web_midi_accessor_client.h

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#ifndef THIRD_PARTY_BLINK_PUBLIC_PLATFORM_MODULES_WEBMIDI_WEB_MIDI_ACCESSOR_CLIENT_H_
#define THIRD_PARTY_BLINK_PUBLIC_PLATFORM_MODULES_WEBMIDI_WEB_MIDI_ACCESSOR_CLIENT_H_

#include "media/midi/midi_service.mojom-shared.h"
#include "third_party/blink/public/platform/web_string.h"

namespace blink {

class WebMIDIAccessorClient {
 public:
  // didAddInputPort() and didAddOutputPort() can be called before and after
  // didStartSession() is called. But |id| should be unique in each function.
  virtual void DidAddInputPort(const WebString& id,
                               const WebString& manufacturer,
                               const WebString& name,
                               const WebString& version,
                               midi::mojom::PortState) = 0;
  virtual void DidAddOutputPort(const WebString& id,
                                const WebString& manufacturer,
                                const WebString& name,
                                const WebString& version,
                                midi::mojom::PortState) = 0;
  // didSetInputPortState() and didSetOutputPortState() should not be called
  // until didStartSession() is called.
  virtual void DidSetInputPortState(unsigned port_index,
                                    midi::mojom::PortState) = 0;
  virtual void DidSetOutputPortState(unsigned port_index,
                                     midi::mojom::PortState) = 0;

  virtual void DidStartSession(midi::mojom::Result) = 0;

  // |timeStamp| is in milliseconds according to the Web MIDI API.
  virtual void DidReceiveMIDIData(unsigned port_index,
                                  const unsigned char* data,
                                  size_t length,
                                  base::TimeTicks time_stamp) = 0;

 protected:
  virtual ~WebMIDIAccessorClient() = default;
};

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_PUBLIC_PLATFORM_MODULES_WEBMIDI_WEB_MIDI_ACCESSOR_CLIENT_H_