gecko-dev/dom/indexedDB/IDBMutableFile.h

140 lines
2.8 KiB
C++

/* -*- 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_idbmutablefile_h__
#define mozilla_dom_idbmutablefile_h__
#include "js/TypeDecls.h"
#include "mozilla/Atomics.h"
#include "mozilla/Attributes.h"
#include "mozilla/DOMEventTargetHelper.h"
#include "mozilla/dom/FileModeBinding.h"
#include "mozilla/dom/MutableFileBase.h"
#include "nsCycleCollectionParticipant.h"
#include "nsHashKeys.h"
#include "nsString.h"
#include "nsTHashtable.h"
class nsPIDOMWindowInner;
namespace mozilla {
class ErrorResult;
namespace dom {
class DOMRequest;
class File;
class IDBDatabase;
class IDBFileHandle;
namespace indexedDB {
class BackgroundMutableFileChild;
}
class IDBMutableFile final
: public DOMEventTargetHelper
, public MutableFileBase
{
RefPtr<IDBDatabase> mDatabase;
nsTHashtable<nsPtrHashKey<IDBFileHandle>> mFileHandles;
nsString mName;
nsString mType;
Atomic<bool> mInvalidated;
public:
IDBMutableFile(IDBDatabase* aDatabase,
indexedDB::BackgroundMutableFileChild* aActor,
const nsAString& aName,
const nsAString& aType);
void
SetLazyData(const nsAString& aName,
const nsAString& aType)
{
mName = aName;
mType = aType;
}
int64_t
GetFileId() const;
void
Invalidate();
void
RegisterFileHandle(IDBFileHandle* aFileHandle);
void
UnregisterFileHandle(IDBFileHandle* aFileHandle);
void
AbortFileHandles();
// WebIDL
nsPIDOMWindowInner*
GetParentObject() const
{
return GetOwner();
}
void
GetName(nsString& aName) const
{
aName = mName;
}
void
GetType(nsString& aType) const
{
aType = mType;
}
IDBDatabase*
Database() const;
already_AddRefed<IDBFileHandle>
Open(FileMode aMode, ErrorResult& aError);
already_AddRefed<DOMRequest>
GetFile(ErrorResult& aError);
IMPL_EVENT_HANDLER(abort)
IMPL_EVENT_HANDLER(error)
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(IDBMutableFile, DOMEventTargetHelper)
// nsWrapperCache
virtual JSObject*
WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
// MutableFileBase
virtual const nsString&
Name() const override;
virtual const nsString&
Type() const override;
virtual bool
IsInvalidated() override;
virtual already_AddRefed<File>
CreateFileFor(BlobImpl* aBlobImpl,
FileHandleBase* aFileHandle) override;
private:
~IDBMutableFile();
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_idbmutablefile_h__