dom/file/MultipartBlobImpl.h
author Sylvestre Ledru <sledru@mozilla.com>
Fri, 24 Feb 2017 17:04:50 +0100
changeset 489671 05d9746016f47666c00390aacc9f9d62c8ffffb4
parent 489668 cbb8fdf1daf98a15f7d57f6b08d273bdf96aa1a0
permissions -rw-r--r--
Move to 99 chars instead of 80 MozReview-Commit-ID: 6NxbMuFVI7e

/* -*- 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_MultipartBlobImpl_h
#define mozilla_dom_MultipartBlobImpl_h

#include "mozilla/Attributes.h"
#include "mozilla/ErrorResult.h"
#include "mozilla/Move.h"
#include "mozilla/dom/BaseBlobImpl.h"

namespace mozilla {
namespace dom {

class MultipartBlobImpl final : public BaseBlobImpl
{
public:
  NS_DECL_ISUPPORTS_INHERITED

  // Create as a file
  static already_AddRefed<MultipartBlobImpl> Create(nsTArray<RefPtr<BlobImpl>>&& aBlobImpls,
                                                    const nsAString& aName,
                                                    const nsAString& aContentType,
                                                    ErrorResult& aRv);

  // Create as a blob
  static already_AddRefed<MultipartBlobImpl> Create(nsTArray<RefPtr<BlobImpl>>&& aBlobImpls,
                                                    const nsAString& aContentType,
                                                    ErrorResult& aRv);

  // Create as a file to be later initialized
  explicit MultipartBlobImpl(const nsAString& aName)
    : BaseBlobImpl(aName, EmptyString(), UINT64_MAX)
    , mIsFromNsIFile(false)
  {
  }

  // Create as a blob to be later initialized
  MultipartBlobImpl()
    : BaseBlobImpl(EmptyString(), UINT64_MAX)
    , mIsFromNsIFile(false)
  {
  }

  void InitializeBlob(ErrorResult& aRv);

  void InitializeBlob(JSContext* aCx,
                      const Sequence<Blob::BlobPart>& aData,
                      const nsAString& aContentType,
                      bool aNativeEOL,
                      ErrorResult& aRv);

  nsresult InitializeChromeFile(nsIFile* aData,
                                const nsAString& aType,
                                const nsAString& aName,
                                bool aLastModifiedPassed,
                                int64_t aLastModified,
                                bool aIsFromNsIFile);

  virtual already_AddRefed<BlobImpl> CreateSlice(uint64_t aStart,
                                                 uint64_t aLength,
                                                 const nsAString& aContentType,
                                                 ErrorResult& aRv) override;

  virtual uint64_t GetSize(ErrorResult& aRv) override { return mLength; }

  virtual void GetInternalStream(nsIInputStream** aInputStream, ErrorResult& aRv) override;

  virtual const nsTArray<RefPtr<BlobImpl>>* GetSubBlobImpls() const override
  {
    return mBlobImpls.Length() ? &mBlobImpls : nullptr;
  }

  virtual void GetMozFullPathInternal(nsAString& aFullPath, ErrorResult& aRv) const override;

  virtual nsresult SetMutable(bool aMutable) override;

  void SetName(const nsAString& aName) { mName = aName; }

  virtual bool MayBeClonedToOtherThreads() const override;

protected:
  MultipartBlobImpl(nsTArray<RefPtr<BlobImpl>>&& aBlobImpls,
                    const nsAString& aName,
                    const nsAString& aContentType)
    : BaseBlobImpl(aName, aContentType, UINT64_MAX)
    , mBlobImpls(Move(aBlobImpls))
    , mIsFromNsIFile(false)
  {
  }

  MultipartBlobImpl(nsTArray<RefPtr<BlobImpl>>&& aBlobImpls, const nsAString& aContentType)
    : BaseBlobImpl(aContentType, UINT64_MAX)
    , mBlobImpls(Move(aBlobImpls))
    , mIsFromNsIFile(false)
  {
  }

  virtual ~MultipartBlobImpl() {}

  void SetLengthAndModifiedDate(ErrorResult& aRv);

  nsTArray<RefPtr<BlobImpl>> mBlobImpls;
  bool mIsFromNsIFile;
};

} // dom namespace
} // mozilla namespace

#endif // mozilla_dom_MultipartBlobImpl_h