third_party/WebKit/Source/modules/webmidi/MIDIController.h

/*
 * Copyright (C) 2013 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 */

#ifndef MIDIController_h
#define MIDIController_h

#include "core/frame/LocalFrame.h"
#include "platform/heap/Handle.h"
#include <memory>

namespace blink {

class MIDIAccessInitializer;
class MIDIClient;
class MIDIOptions;

class MIDIController final : public GarbageCollectedFinalized<MIDIController>, public Supplement<LocalFrame> {
    USING_GARBAGE_COLLECTED_MIXIN(MIDIController);
public:
    virtual ~MIDIController();

    void requestPermission(MIDIAccessInitializer*, const MIDIOptions&);
    void cancelPermissionRequest(MIDIAccessInitializer*);

    static MIDIController* create(std::unique_ptr<MIDIClient>);
    static const char* supplementName();
    static MIDIController* from(LocalFrame* frame) { return static_cast<MIDIController*>(Supplement<LocalFrame>::from(frame, supplementName())); }

    DEFINE_INLINE_VIRTUAL_TRACE() { Supplement<LocalFrame>::trace(visitor); }

protected:
    explicit MIDIController(std::unique_ptr<MIDIClient>);

private:
    std::unique_ptr<MIDIClient> m_client;
};

} // namespace blink

#endif // MIDIController_h