/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this file,

 * You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef mozilla_dom_idbfilerequest_h__

#define mozilla_dom_idbfilerequest_h__

#include "DOMRequest.h"

#include "js/TypeDecls.h"

#include "mozilla/Attributes.h"

#include "nsCycleCollectionParticipant.h"

#include "nsString.h"

template <class> struct already_AddRefed;

namespace mozilla {

class EventChainPreVisitor;

namespace dom {

class IDBFileHandle;

class IDBFileRequest final

  : public DOMRequest

{

  RefPtr<IDBFileHandle> mFileHandle;

  nsString mEncoding;

  bool mWrapAsDOMRequest;

  bool mHasEncoding;

public:

  class ResultCallback;

  static already_AddRefed<IDBFileRequest>

  Create(IDBFileHandle* aFileHandle,

         bool aWrapAsDOMRequest);

  void

  SetEncoding(const nsAString& aEncoding)

  {

    mEncoding = aEncoding;

    mHasEncoding = true;

  }

  const nsAString&

  GetEncoding() const

  {

    return mEncoding;

  }

  bool

  HasEncoding() const

  {

    return mHasEncoding;

  }

  void

  FireProgressEvent(uint64_t aLoaded, uint64_t aTotal);

  void

  SetResultCallback(ResultCallback* aCallback);

  // WebIDL

  IDBFileHandle*

  GetFileHandle() const

  {

    AssertIsOnOwningThread();

    return mFileHandle;

  }

  IDBFileHandle*

  GetLockedFile() const

  {

    AssertIsOnOwningThread();

    return GetFileHandle();

  }

  IMPL_EVENT_HANDLER(progress)

  void

  AssertIsOnOwningThread() const

  {

    NS_ASSERT_OWNINGTHREAD(IDBFileRequest);

  }

  NS_DECL_ISUPPORTS_INHERITED

  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(IDBFileRequest, DOMRequest)

  // EventTarget

  void GetEventTargetParent(EventChainPreVisitor& aVisitor) override;

  // nsWrapperCache

  virtual JSObject*

  WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;

private:

  IDBFileRequest(IDBFileHandle* aFileHandle,

                 bool aWrapAsDOMRequest);

  ~IDBFileRequest();

};

class NS_NO_VTABLE IDBFileRequest::ResultCallback

{

public:

  virtual nsresult

  GetResult(JSContext* aCx, JS::MutableHandle<JS::Value> aResult) = 0;

protected:

  ResultCallback()

  { }

};

} // namespace dom

} // namespace mozilla

#endif // mozilla_dom_idbfilerequest_h__