gecko-dev/dom/file/TemporaryFileBlobImpl.h

47 строки
1.4 KiB
C++

/* -*- 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_TemporaryFileBlobImpl_h
#define mozilla_dom_TemporaryFileBlobImpl_h
#include "FileBlobImpl.h"
namespace mozilla {
namespace dom {
// This class is meant to be used by TemporaryIPCBlobParent only.
// Don't use it for anything else, please!
// Note that CreateInputStream() _must_ be called, and called just once!
// This class is a BlobImpl because it needs to be sent via IPC using
// IPCBlobUtils.
class TemporaryFileBlobImpl final : public FileBlobImpl
{
#ifdef DEBUG
bool mInputStreamCreated;
#endif
public:
explicit TemporaryFileBlobImpl(nsIFile* aFile, const nsAString& aContentType);
// Overrides
virtual void CreateInputStream(nsIInputStream** aInputStream,
ErrorResult& aRv) override;
protected:
virtual ~TemporaryFileBlobImpl();
private:
virtual already_AddRefed<BlobImpl>
CreateSlice(uint64_t aStart, uint64_t aLength,
const nsAString& aContentType, ErrorResult& aRv) override;
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_TemporaryFileBlobImpl_h