gecko-dev/dom/indexedDB/IDBFileRequest.h

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2.4 KiB
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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_idbfilerequest_h__
#define mozilla_dom_idbfilerequest_h__
#include "DOMRequest.h"
#include "js/TypeDecls.h"
#include "mozilla/Attributes.h"
#include "nsCycleCollectionParticipant.h"
#include "nsString.h"
template <class>
struct already_AddRefed;
namespace mozilla {
class EventChainPreVisitor;
namespace dom {
class IDBFileHandle;
class IDBFileRequest final : public DOMRequest {
RefPtr<IDBFileHandle> mFileHandle;
nsString mEncoding;
bool mWrapAsDOMRequest;
bool mHasEncoding;
public:
class ResultCallback;
static already_AddRefed<IDBFileRequest> Create(IDBFileHandle* aFileHandle,
bool aWrapAsDOMRequest);
void SetEncoding(const nsAString& aEncoding) {
mEncoding = aEncoding;
mHasEncoding = true;
}
const nsAString& GetEncoding() const { return mEncoding; }
bool HasEncoding() const { return mHasEncoding; }
void FireProgressEvent(uint64_t aLoaded, uint64_t aTotal);
void SetResultCallback(ResultCallback* aCallback);
// WebIDL
IDBFileHandle* GetFileHandle() const {
AssertIsOnOwningThread();
return mFileHandle;
}
IDBFileHandle* GetLockedFile() const {
AssertIsOnOwningThread();
return GetFileHandle();
}
IMPL_EVENT_HANDLER(progress)
void AssertIsOnOwningThread() const {
NS_ASSERT_OWNINGTHREAD(IDBFileRequest);
}
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(IDBFileRequest, DOMRequest)
// EventTarget
void GetEventTargetParent(EventChainPreVisitor& aVisitor) override;
// nsWrapperCache
virtual JSObject* WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override;
private:
IDBFileRequest(IDBFileHandle* aFileHandle, bool aWrapAsDOMRequest);
~IDBFileRequest();
};
class NS_NO_VTABLE IDBFileRequest::ResultCallback {
public:
virtual nsresult GetResult(JSContext* aCx,
JS::MutableHandle<JS::Value> aResult) = 0;
protected:
ResultCallback() = default;
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_idbfilerequest_h__