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// Copyright (c) 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_BROWSER_RENDERER_HOST_MEDIA_MIDI_HOST_H_
#define CONTENT_BROWSER_RENDERER_HOST_MEDIA_MIDI_HOST_H_
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "content/common/content_export.h"
#include "content/public/browser/browser_message_filter.h"
#include "content/public/browser/browser_thread.h"
#include "media/midi/midi_manager.h"
namespace media {
class MIDIManager;
}
namespace content {
class CONTENT_EXPORT MIDIHost
: public BrowserMessageFilter,
public media::MIDIManagerClient {
public:
// Called from UI thread from the owner of this object.
MIDIHost(media::MIDIManager* midi_manager);
// BrowserMessageFilter implementation.
virtual void OnChannelClosing() OVERRIDE;
virtual void OnDestruct() const OVERRIDE;
virtual bool OnMessageReceived(const IPC::Message& message,
bool* message_was_ok) OVERRIDE;
// MIDIManagerClient implementation.
virtual void ReceiveMIDIData(
int port_index,
const uint8* data,
size_t length,
double timestamp) OVERRIDE;
// Request access to MIDI hardware.
void OnRequestAccess(int client_id, int access);
// Data to be sent to a MIDI output port.
void OnSendData(int port,
const std::vector<uint8>& data,
double timestamp);
private:
friend class base::DeleteHelper<MIDIHost>;
friend class BrowserThread;
virtual ~MIDIHost();
media::MIDIManager* const midi_manager_;
DISALLOW_COPY_AND_ASSIGN(MIDIHost);
};
} // namespace content
#endif // CONTENT_BROWSER_RENDERER_HOST_MEDIA_MIDI_HOST_H_
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