third_party/WebKit/Source/modules/webusb/NavigatorUSB.h

// Copyright 2015 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 NavigatorUSB_h
#define NavigatorUSB_h

#include "core/frame/Navigator.h"
#include "platform/Supplementable.h"
#include "platform/heap/Handle.h"

namespace blink {

class Navigator;
class USB;

class NavigatorUSB final : public GarbageCollected<NavigatorUSB>,
                           public Supplement<Navigator> {
  USING_GARBAGE_COLLECTED_MIXIN(NavigatorUSB);

 public:
  static const char kSupplementName[];

  // Gets, or creates, NavigatorUSB supplement on Navigator.
  // See platform/Supplementable.h
  static NavigatorUSB& From(Navigator&);

  static USB* usb(Navigator&);
  USB* usb();

  void Trace(blink::Visitor*);

 private:
  explicit NavigatorUSB(Navigator&);

  Member<USB> usb_;
};

}  // namespace blink

#endif  // NavigatorUSB_h