/* -*- 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_idbmutablefile_h__

#define mozilla_dom_idbmutablefile_h__

#include "js/TypeDecls.h"

#include "mozilla/Atomics.h"

#include "mozilla/Attributes.h"

#include "mozilla/DOMEventTargetHelper.h"

#include "mozilla/dom/FileModeBinding.h"

#include "nsCycleCollectionParticipant.h"

#include "nsHashKeys.h"

#include "nsString.h"

#include "nsTHashtable.h"

class nsPIDOMWindowInner;

namespace mozilla {

class ErrorResult;

namespace dom {

class DOMRequest;

class File;

class IDBDatabase;

class IDBFileHandle;

namespace indexedDB {

class BackgroundMutableFileChild;

}

class IDBMutableFile final

  : public DOMEventTargetHelper

{

  RefPtr<IDBDatabase> mDatabase;

  indexedDB::BackgroundMutableFileChild* mBackgroundActor;

  nsTHashtable<nsPtrHashKey<IDBFileHandle>> mFileHandles;

  nsString mName;

  nsString mType;

  Atomic<bool> mInvalidated;

public:

  IDBMutableFile(IDBDatabase* aDatabase,

                 indexedDB::BackgroundMutableFileChild* aActor,

                 const nsAString& aName,

                 const nsAString& aType);

  void

  AssertIsOnOwningThread() const

#ifdef DEBUG

  ;

#else

  { }

#endif

  indexedDB::BackgroundMutableFileChild*

  GetBackgroundActor() const

  {

    AssertIsOnOwningThread();

    return mBackgroundActor;

  }

  void

  ClearBackgroundActor()

  {

    AssertIsOnOwningThread();

    mBackgroundActor = nullptr;

  }

  const nsString&

  Name() const

  {

    AssertIsOnOwningThread();

    return mName;

  }

  const nsString&

  Type() const

  {

    AssertIsOnOwningThread();

    return mType;

  }

  void

  SetLazyData(const nsAString& aName,

              const nsAString& aType)

  {

    mName = aName;

    mType = aType;

  }

  int64_t

  GetFileId() const;

  void

  Invalidate();

  bool

  IsInvalidated() const

  {

    AssertIsOnOwningThread();

    return mInvalidated;

  }

  void

  RegisterFileHandle(IDBFileHandle* aFileHandle);

  void

  UnregisterFileHandle(IDBFileHandle* aFileHandle);

  void

  AbortFileHandles();

  // WebIDL

  nsPIDOMWindowInner*

  GetParentObject() const

  {

    return GetOwner();

  }

  void

  GetName(nsString& aName) const

  {

    aName = mName;

  }

  void

  GetType(nsString& aType) const

  {

    aType = mType;

  }

  IDBDatabase*

  Database() const;

  already_AddRefed<IDBFileHandle>

  Open(FileMode aMode, ErrorResult& aError);

  already_AddRefed<DOMRequest>

  GetFile(ErrorResult& aError);

  IMPL_EVENT_HANDLER(abort)

  IMPL_EVENT_HANDLER(error)

  NS_DECL_ISUPPORTS_INHERITED

  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(IDBMutableFile, DOMEventTargetHelper)

  // nsWrapperCache

  virtual JSObject*

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

private:

  ~IDBMutableFile();

};

} // namespace dom

} // namespace mozilla

#endif // mozilla_dom_idbmutablefile_h__