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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef NET_URL_REQUEST_URL_FETCHER_DELEGATE_H_
#define NET_URL_REQUEST_URL_FETCHER_DELEGATE_H_
#include <string>
#include "base/basictypes.h"
#include "base/memory/scoped_ptr.h"
#include "net/base/net_export.h"
namespace net {
class URLFetcher;
// A delegate interface for users of URLFetcher.
class NET_EXPORT URLFetcherDelegate {
public:
// This will be called when the URL has been fetched, successfully or not.
// Use accessor methods on |source| to get the results.
virtual void OnURLFetchComplete(const URLFetcher* source) = 0;
// This will be called when some part of the response is read. |current|
// denotes the number of bytes received up to the call, and |total| is the
// expected total size of the response (or -1 if not determined).
virtual void OnURLFetchDownloadProgress(const URLFetcher* source,
int64 current, int64 total);
// This will be called when some part of the response is read.
// |download_data| contains the current bytes received since the last call.
// This will be called after ShouldSendDownloadData() and only if the latter
// returns true.
virtual void OnURLFetchDownloadData(const URLFetcher* source,
scoped_ptr<std::string> download_data);
// This indicates if OnURLFetchDownloadData should be called.
// This will be called before OnURLFetchDownloadData is called, and only if
// this returns true.
// Default implementation is false.
virtual bool ShouldSendDownloadData();
// This will be called when uploading of POST or PUT requests proceeded.
// |current| denotes the number of bytes sent so far, and |total| is the
// total size of uploading data (or -1 if chunked upload is enabled).
virtual void OnURLFetchUploadProgress(const URLFetcher* source,
int64 current, int64 total);
protected:
virtual ~URLFetcherDelegate();
};
} // namespace net
#endif // NET_URL_REQUEST_URL_FETCHER_DELEGATE_H_
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