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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 CHROME_BROWSER_PLUGIN_DOWNLOAD_HELPER_H_
#define CHROME_BROWSER_PLUGIN_DOWNLOAD_HELPER_H_
#pragma once
#include "base/callback.h"
#include "base/file_path.h"
#include "base/memory/scoped_ptr.h"
#include "content/public/common/url_fetcher_delegate.h"
#include "googleurl/src/gurl.h"
namespace base {
class MessageLoopProxy;
}
namespace net {
class URLRequestContextGetter;
}
// The PluginDownloadUrlHelper is used to handle one download URL request
// from the plugin. Each download request is handled by a new instance
// of this class.
class PluginDownloadUrlHelper : public content::URLFetcherDelegate {
public:
typedef base::Callback<void(const FilePath&)> DownloadFinishedCallback;
typedef base::Callback<void(const std::string&)> ErrorCallback;
PluginDownloadUrlHelper();
virtual ~PluginDownloadUrlHelper();
void InitiateDownload(const GURL& download_url,
net::URLRequestContextGetter* request_context,
const DownloadFinishedCallback& callback,
const ErrorCallback& error_callback);
// content::URLFetcherDelegate
virtual void OnURLFetchComplete(const content::URLFetcher* source) OVERRIDE;
private:
// Renames the file (which was downloaded to a temporary file) to the filename
// of the download URL.
void RenameDownloadedFile();
// Runs the success callback and deletes itself.
void RunFinishedCallback();
// Runs the error callback and deletes itself.
void RunErrorCallback(const std::string& error);
// The download file request initiated by the plugin.
scoped_ptr<content::URLFetcher> download_file_fetcher_;
GURL download_url_;
FilePath downloaded_file_;
DownloadFinishedCallback download_finished_callback_;
ErrorCallback error_callback_;
DISALLOW_COPY_AND_ASSIGN(PluginDownloadUrlHelper);
};
#endif // CHROME_BROWSER_PLUGIN_DOWNLOAD_HELPER_H_
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