gecko-dev/dom/file/ipc/TemporaryIPCBlobChild.h

/* -*- 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_ipc_TemporaryIPCBlobChild_h
#define mozilla_dom_ipc_TemporaryIPCBlobChild_h

#include "mozilla/ipc/PTemporaryIPCBlob.h"
#include "mozilla/ipc/PTemporaryIPCBlobChild.h"

namespace mozilla {
namespace dom {

class MutableBlobStorage;

class TemporaryIPCBlobChildCallback
{
public:
  NS_INLINE_DECL_PURE_VIRTUAL_REFCOUNTING

  virtual void OperationSucceeded(BlobImpl* aBlobImpl) = 0;
  virtual void OperationFailed(nsresult aRv) = 0;
};

class TemporaryIPCBlobChild final : public mozilla::ipc::PTemporaryIPCBlobChild
{
public:
  NS_INLINE_DECL_REFCOUNTING(TemporaryIPCBlobChild)

  explicit TemporaryIPCBlobChild(MutableBlobStorage* aMutableBlobStorage);

  void
  AskForBlob(TemporaryIPCBlobChildCallback* aCallback,
             const nsACString& aContentType,
             PRFileDesc* aFD);

private:
  ~TemporaryIPCBlobChild();

  mozilla::ipc::IPCResult
  RecvFileDesc(const FileDescriptor& aFD) override;

  mozilla::ipc::IPCResult
  Recv__delete__(const IPCBlobOrError& aBlobOrError) override;

  void
  ActorDestroy(ActorDestroyReason aWhy) override;

  RefPtr<MutableBlobStorage> mMutableBlobStorage;
  RefPtr<TemporaryIPCBlobChildCallback> mCallback;
  bool mActive;
};

} // namespace dom
} // namespace mozilla

#endif // mozilla_dom_ipc_TemporaryIPCBlobChild_h