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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 DOM_FS_FILESYSTEMWRITABLEFILESTREAM_H_
#define DOM_FS_FILESYSTEMWRITABLEFILESTREAM_H_
#include "mozilla/dom/PFileSystemManager.h"
#include "mozilla/dom/WritableStream.h"
class nsIGlobalObject;
namespace mozilla {
template <typename T>
class Buffer;
class ErrorResult;
namespace dom {
class ArrayBufferViewOrArrayBufferOrBlobOrUTF8StringOrWriteParams;
class Blob;
class FileSystemManager;
class FileSystemWritableFileStreamChild;
class OwningArrayBufferViewOrArrayBufferOrBlobOrUSVString;
class Promise;
class FileSystemWritableFileStream final : public WritableStream {
public:
static already_AddRefed<FileSystemWritableFileStream> Create(
nsIGlobalObject* aGlobal, RefPtr<FileSystemManager>& aManager,
RefPtr<FileSystemWritableFileStreamChild> aActor,
const ::mozilla::ipc::FileDescriptor& aFileDescriptor,
const fs::FileSystemEntryMetadata& aMetadata);
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(FileSystemWritableFileStream,
WritableStream)
void LastRelease() override;
void ClearActor();
bool IsClosed() const { return mClosed; }
void Close();
already_AddRefed<Promise> Write(JSContext* aCx, JS::Handle<JS::Value> aChunk,
ErrorResult& aError);
// WebIDL Boilerplate
JSObject* WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override;
// WebIDL Interface
MOZ_CAN_RUN_SCRIPT already_AddRefed<Promise> Write(
const ArrayBufferViewOrArrayBufferOrBlobOrUTF8StringOrWriteParams& aData,
ErrorResult& aError);
MOZ_CAN_RUN_SCRIPT already_AddRefed<Promise> Seek(uint64_t aPosition,
ErrorResult& aError);
MOZ_CAN_RUN_SCRIPT already_AddRefed<Promise> Truncate(uint64_t aSize,
ErrorResult& aError);
private:
FileSystemWritableFileStream(
nsIGlobalObject* aGlobal, RefPtr<FileSystemManager>& aManager,
RefPtr<FileSystemWritableFileStreamChild> aActor,
const ::mozilla::ipc::FileDescriptor& aFileDescriptor,
const fs::FileSystemEntryMetadata& aMetadata);
virtual ~FileSystemWritableFileStream();
template <typename T>
void Write(const T& aData, const Maybe<uint64_t> aPosition,
RefPtr<Promise> aPromise);
void Seek(uint64_t aPosition, RefPtr<Promise> aPromise);
void Truncate(uint64_t aSize, RefPtr<Promise> aPromise);
Result<uint64_t, nsresult> WriteBuffer(const nsACString& aBuffer,
const Maybe<uint64_t> aPosition);
Result<uint64_t, nsresult> WriteStream(nsCOMPtr<nsIInputStream> aStream,
const Maybe<uint64_t> aPosition);
Result<Ok, nsresult> SeekPosition(uint64_t aPosition);
RefPtr<FileSystemManager> mManager;
RefPtr<FileSystemWritableFileStreamChild> mActor;
PRFileDesc* mFileDesc;
fs::FileSystemEntryMetadata mMetadata;
bool mClosed;
};
} // namespace dom
} // namespace mozilla
#endif // DOM_FS_FILESYSTEMWRITABLEFILESTREAM_H_
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