content/browser/renderer_host/sync_resource_handler.h

// Copyright (c) 2011 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 CONTENT_BROWSER_RENDERER_HOST_SYNC_RESOURCE_HANDLER_H_
#define CONTENT_BROWSER_RENDERER_HOST_SYNC_RESOURCE_HANDLER_H_
#pragma once

#include <string>

#include "content/browser/renderer_host/resource_handler.h"
#include "chrome/common/resource_response.h"

class ResourceDispatcherHost;
class ResourceMessageFilter;

namespace IPC {
class Message;
}

namespace net {
class IOBuffer;
}

// Used to complete a synchronous resource request in response to resource load
// events from the resource dispatcher host.
class SyncResourceHandler : public ResourceHandler {
 public:
  SyncResourceHandler(ResourceMessageFilter* filter,
                      const GURL& url,
                      IPC::Message* result_message,
                      ResourceDispatcherHost* resource_dispatcher_host);

  virtual bool OnUploadProgress(int request_id, uint64 position, uint64 size);
  virtual bool OnRequestRedirected(int request_id, const GURL& new_url,
                                   ResourceResponse* response, bool* defer);
  virtual bool OnResponseStarted(int request_id, ResourceResponse* response);
  virtual bool OnWillStart(int request_id, const GURL& url, bool* defer);
  virtual bool OnWillRead(int request_id, net::IOBuffer** buf, int* buf_size,
                          int min_size);
  virtual bool OnReadCompleted(int request_id, int* bytes_read);
  virtual bool OnResponseCompleted(int request_id,
                                   const net::URLRequestStatus& status,
                                   const std::string& security_info);
  virtual void OnRequestClosed();

 private:
  enum { kReadBufSize = 3840 };

  ~SyncResourceHandler();

  scoped_refptr<net::IOBuffer> read_buffer_;

  SyncLoadResult result_;
  ResourceMessageFilter* filter_;
  IPC::Message* result_message_;
  ResourceDispatcherHost* rdh_;
};

#endif  // CONTENT_BROWSER_RENDERER_HOST_SYNC_RESOURCE_HANDLER_H_