FileReaderSync.h - mozsearch

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/* -*- 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_filereadersync_h__

#define mozilla_dom_filereadersync_h__

#include "mozilla/dom/WorkerCommon.h"

#include "mozilla/dom/NonRefcountedDOMObject.h"

class nsIInputStream;

namespace mozilla {

class ErrorResult;

namespace dom {

class Blob;

class GlobalObject;

template <typename>

class Optional;

class FileReaderSync final : public NonRefcountedDOMObject {

 private:

  nsresult ConvertStream(nsIInputStream* aStream, const char* aCharset,

                         nsAString& aResult);

  nsresult ConvertAsyncToSyncStream(

      uint64_t aStreamSize, already_AddRefed<nsIInputStream> aAsyncStream,

      nsIInputStream** aSyncStream);

  nsresult SyncRead(nsIInputStream* aStream, char* aBuffer,

                    uint32_t aBufferSize, uint32_t* aTotalBytesRead);

 public:

  static UniquePtr<FileReaderSync> Constructor(const GlobalObject& aGlobal);

  bool WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto,

                  JS::MutableHandle<JSObject*> aReflector);

  void ReadAsArrayBuffer(JSContext* aCx, JS::Handle<JSObject*> aScopeObj,

                         Blob& aBlob, JS::MutableHandle<JSObject*> aRetval,

                         ErrorResult& aRv);

  void ReadAsBinaryString(Blob& aBlob, nsAString& aResult, ErrorResult& aRv);

  void ReadAsText(Blob& aBlob, const Optional<nsAString>& aEncoding,

                  nsAString& aResult, ErrorResult& aRv);

  void ReadAsDataURL(Blob& aBlob, nsAString& aResult, ErrorResult& aRv);

};

}  // namespace dom

}  // namespace mozilla

#endif  // mozilla_dom_filereadersync_h__