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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_idbfilehandle_h__
#define mozilla_dom_idbfilehandle_h__
#include "IDBFileRequest.h"
#include "js/TypeDecls.h"
#include "mozilla/Attributes.h"
#include "mozilla/dom/FileHandleBase.h"
#include "mozilla/DOMEventTargetHelper.h"
#include "nsCycleCollectionParticipant.h"
#include "nsIRunnable.h"
#include "nsWeakReference.h"
class nsPIDOMWindowInner;
namespace mozilla {
namespace dom {
struct IDBFileMetadataParameters;
class IDBFileRequest;
class IDBMutableFile;
class IDBFileHandle final
: public DOMEventTargetHelper
, public nsIRunnable
, public FileHandleBase
, public nsSupportsWeakReference
{
RefPtr<IDBMutableFile> mMutableFile;
public:
static already_AddRefed<IDBFileHandle>
Create(IDBMutableFile* aMutableFile,
FileMode aMode);
// WebIDL
nsPIDOMWindowInner*
GetParentObject() const
{
AssertIsOnOwningThread();
return GetOwner();
}
IDBMutableFile*
GetMutableFile() const
{
AssertIsOnOwningThread();
return mMutableFile;
}
IDBMutableFile*
GetFileHandle() const
{
AssertIsOnOwningThread();
return GetMutableFile();
}
already_AddRefed<IDBFileRequest>
GetMetadata(const IDBFileMetadataParameters& aParameters, ErrorResult& aRv);
already_AddRefed<IDBFileRequest>
ReadAsArrayBuffer(uint64_t aSize, ErrorResult& aRv)
{
AssertIsOnOwningThread();
return Read(aSize, false, NullString(), aRv).downcast<IDBFileRequest>();
}
already_AddRefed<IDBFileRequest>
ReadAsText(uint64_t aSize, const nsAString& aEncoding, ErrorResult& aRv)
{
AssertIsOnOwningThread();
return Read(aSize, true, aEncoding, aRv).downcast<IDBFileRequest>();
}
already_AddRefed<IDBFileRequest>
Write(const StringOrArrayBufferOrArrayBufferViewOrBlob& aValue,
ErrorResult& aRv)
{
AssertIsOnOwningThread();
return WriteOrAppend(aValue, false, aRv).downcast<IDBFileRequest>();
}
already_AddRefed<IDBFileRequest>
Append(const StringOrArrayBufferOrArrayBufferViewOrBlob& aValue,
ErrorResult& aRv)
{
AssertIsOnOwningThread();
return WriteOrAppend(aValue, true, aRv).downcast<IDBFileRequest>();
}
already_AddRefed<IDBFileRequest>
Truncate(const Optional<uint64_t>& aSize, ErrorResult& aRv)
{
AssertIsOnOwningThread();
return FileHandleBase::Truncate(aSize, aRv).downcast<IDBFileRequest>();
}
already_AddRefed<IDBFileRequest>
Flush(ErrorResult& aRv)
{
AssertIsOnOwningThread();
return FileHandleBase::Flush(aRv).downcast<IDBFileRequest>();
}
IMPL_EVENT_HANDLER(complete)
IMPL_EVENT_HANDLER(abort)
IMPL_EVENT_HANDLER(error)
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_NSIRUNNABLE
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(IDBFileHandle, DOMEventTargetHelper)
// nsIDOMEventTarget
virtual nsresult
PreHandleEvent(EventChainPreVisitor& aVisitor) override;
// WrapperCache
virtual JSObject*
WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
// FileHandleBase
virtual MutableFileBase*
MutableFile() const override;
virtual void
HandleCompleteOrAbort(bool aAborted) override;
private:
IDBFileHandle(FileMode aMode,
IDBMutableFile* aMutableFile);
~IDBFileHandle();
// FileHandleBase
virtual bool
CheckWindow() override;
virtual already_AddRefed<FileRequestBase>
GenerateFileRequest() override;
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_idbfilehandle_h__
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