/* -*- 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 "mozilla/dom/BaseBlobImpl.h"

#include "nsRFPService.h"

#include "prtime.h"

namespace mozilla {

namespace dom {

void

BaseBlobImpl::GetName(nsAString& aName) const

{

  MOZ_ASSERT(mIsFile, "Should only be called on files");

  aName = mName;

}

void

BaseBlobImpl::GetDOMPath(nsAString& aPath) const

{

  MOZ_ASSERT(mIsFile, "Should only be called on files");

  aPath = mPath;

}

void

BaseBlobImpl::SetDOMPath(const nsAString& aPath)

{

  MOZ_ASSERT(mIsFile, "Should only be called on files");

  mPath = aPath;

}

void

BaseBlobImpl::GetMozFullPath(nsAString& aFileName,

                             SystemCallerGuarantee /* unused */,

                             ErrorResult& aRv) const

{

  MOZ_ASSERT(mIsFile, "Should only be called on files");

  GetMozFullPathInternal(aFileName, aRv);

}

void

BaseBlobImpl::GetMozFullPathInternal(nsAString& aFileName, ErrorResult& aRv) const

{

  if (!mIsFile) {

    aRv.Throw(NS_ERROR_FAILURE);

    return;

  }

  aFileName.Truncate();

}

void

BaseBlobImpl::GetType(nsAString& aType)

{

  aType = mContentType;

}

int64_t

BaseBlobImpl::GetLastModified(ErrorResult& aRv)

{

  MOZ_ASSERT(mIsFile, "Should only be called on files");

  if (IsDateUnknown()) {

    mLastModificationDate = nsRFPService::ReduceTimePrecisionAsUSecs(PR_Now(), 0);

    // mLastModificationDate is an absolute timestamp so we supply a zero context mix-in

  }

  return mLastModificationDate / PR_USEC_PER_MSEC;

}

void

BaseBlobImpl::SetLastModified(int64_t aLastModified)

{

  mLastModificationDate = aLastModified * PR_USEC_PER_MSEC;

}

int64_t

BaseBlobImpl::GetFileId()

{

  return -1;

}

nsresult

BaseBlobImpl::GetSendInfo(nsIInputStream** aBody, uint64_t* aContentLength,

                          nsACString& aContentType, nsACString& aCharset)

{

  MOZ_ASSERT(aContentLength);

  ErrorResult rv;

  nsCOMPtr<nsIInputStream> stream;

  CreateInputStream(getter_AddRefs(stream), rv);

  if (NS_WARN_IF(rv.Failed())) {

    return rv.StealNSResult();

  }

  *aContentLength = GetSize(rv);

  if (NS_WARN_IF(rv.Failed())) {

    return rv.StealNSResult();

  }

  nsAutoString contentType;

  GetType(contentType);

  if (contentType.IsEmpty()) {

    aContentType.SetIsVoid(true);

  } else {

    CopyUTF16toUTF8(contentType, aContentType);

  }

  aCharset.Truncate();

  stream.forget(aBody);

  return NS_OK;

}

nsresult

BaseBlobImpl::GetMutable(bool* aMutable) const

{

  *aMutable = !mImmutable;

  return NS_OK;

}

nsresult

BaseBlobImpl::SetMutable(bool aMutable)

{

  nsresult rv = NS_OK;

  NS_ENSURE_ARG(!mImmutable || !aMutable);

  if (!mImmutable && !aMutable) {

    // Force the content type and size to be cached

    nsAutoString dummyString;

    GetType(dummyString);

    ErrorResult error;

    GetSize(error);

    if (NS_WARN_IF(error.Failed())) {

      return error.StealNSResult();

    }

  }

  mImmutable = !aMutable;

  return rv;

}

/* static */ uint64_t

BaseBlobImpl::NextSerialNumber()

{

  static Atomic<uint64_t> nextSerialNumber;

  return nextSerialNumber++;

}

} // namespace dom

} // namespace mozilla