/* -*- 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/. */

#include "StringBlobImpl.h"

#include "nsStringStream.h"

namespace mozilla {

namespace dom {

NS_IMPL_ISUPPORTS_INHERITED(StringBlobImpl, BlobImpl, nsIMemoryReporter)

/* static */ already_AddRefed<StringBlobImpl>

StringBlobImpl::Create(const nsACString& aData, const nsAString& aContentType)

{

  RefPtr<StringBlobImpl> blobImpl = new StringBlobImpl(aData, aContentType);

  RegisterWeakMemoryReporter(blobImpl);

  return blobImpl.forget();

}

StringBlobImpl::StringBlobImpl(const nsACString& aData,

                               const nsAString& aContentType)

  : BaseBlobImpl(aContentType, aData.Length())

  , mData(aData)

{

}

StringBlobImpl::~StringBlobImpl()

{

  UnregisterWeakMemoryReporter(this);

}

already_AddRefed<BlobImpl>

StringBlobImpl::CreateSlice(uint64_t aStart, uint64_t aLength,

                            const nsAString& aContentType,

                            ErrorResult& aRv)

{

  RefPtr<BlobImpl> impl =

    new StringBlobImpl(Substring(mData, aStart, aLength),

                       aContentType);

  return impl.forget();

}

void

StringBlobImpl::CreateInputStream(nsIInputStream** aStream, ErrorResult& aRv)

{

  aRv = NS_NewCStringInputStream(aStream, mData);

}

NS_IMETHODIMP

StringBlobImpl::CollectReports(nsIHandleReportCallback* aHandleReport,

                               nsISupports* aData, bool aAnonymize)

{

  MOZ_COLLECT_REPORT(

    "explicit/dom/memory-file-data/string", KIND_HEAP, UNITS_BYTES,

    mData.SizeOfExcludingThisIfUnshared(MallocSizeOf),

    "Memory used to back a File/Blob based on a string.");

  return NS_OK;

}

} // namespace dom

} // namespace mozilla