gecko-dev/dom/filehandle/FileRequestBase.h

94 строки
1.7 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_FileRequest_h
#define mozilla_dom_FileRequest_h
#include "FileHandleCommon.h"
#include "js/TypeDecls.h"
#include "nsString.h"
struct PRThread;
namespace mozilla {
namespace dom {
class FileHandleBase;
/**
* This class provides a base for FileRequest implementations.
*/
class FileRequestBase
: public RefCountedThreadObject
{
nsString mEncoding;
bool mHasEncoding;
public:
class ResultCallback;
void
SetEncoding(const nsAString& aEncoding)
{
mEncoding = aEncoding;
mHasEncoding = true;
}
const nsAString&
GetEncoding() const
{
return mEncoding;
}
bool
HasEncoding() const
{
return mHasEncoding;
}
virtual FileHandleBase*
FileHandle() const = 0;
virtual void
OnProgress(uint64_t aProgress, uint64_t aProgressMax) = 0;
virtual void
SetResultCallback(ResultCallback* aCallback) = 0;
virtual void
SetError(nsresult aError) = 0;
protected:
FileRequestBase(DEBUGONLY(PRThread* aOwningThread))
: RefCountedThreadObject(DEBUGONLY(aOwningThread))
, mHasEncoding(false)
{
AssertIsOnOwningThread();
}
virtual ~FileRequestBase()
{
AssertIsOnOwningThread();
}
};
class NS_NO_VTABLE FileRequestBase::ResultCallback
{
public:
virtual nsresult
GetResult(JSContext* aCx, JS::MutableHandle<JS::Value> aResult) = 0;
protected:
ResultCallback()
{ }
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_FileRequest_h