cef/include/cef_urlrequest.h

// Copyright (c) 2012 Marshall A. Greenblatt. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//    * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//    * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//    * Neither the name of Google Inc. nor the name Chromium Embedded
// Framework nor the names of its contributors may be used to endorse
// or promote products derived from this software without specific prior
// written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// ---------------------------------------------------------------------------
//
// The contents of this file must follow a specific format in order to
// support the CEF translator tool. See the translator.README.txt file in the
// tools directory for more information.
//

#ifndef CEF_INCLUDE_CEF_URLREQUEST_H_
#define CEF_INCLUDE_CEF_URLREQUEST_H_
#pragma once

#include "include/cef_base.h"
#include "include/cef_request.h"
#include "include/cef_response.h"

class CefURLRequestClient;

///
// Class used to make a URL request. URL requests are not associated with a
// browser instance so no CefClient callbacks will be executed. URL requests
// can be created on any valid CEF thread in either the browser or render
// process. Once created the methods of the URL request object must be accessed
// on the same thread that created it.
///
/*--cef(source=library)--*/
class CefURLRequest : public virtual CefBase {
 public:
  typedef cef_urlrequest_status_t Status;
  typedef cef_errorcode_t ErrorCode;

  ///
  // Create a new URL request. Only GET, POST, HEAD, DELETE and PUT request
  // methods are supported. The |request| object will be marked as read-only
  // after calling this method.
  ///
  /*--cef()--*/
  static CefRefPtr<CefURLRequest> Create(
      CefRefPtr<CefRequest> request,
      CefRefPtr<CefURLRequestClient> client);

  ///
  // Returns the request object used to create this URL request. The returned
  // object is read-only and should not be modified.
  ///
  /*--cef()--*/
  virtual CefRefPtr<CefRequest> GetRequest() =0;

  ///
  // Returns the client.
  ///
  /*--cef()--*/
  virtual CefRefPtr<CefURLRequestClient> GetClient() =0;

  ///
  // Returns the request status.
  ///
  /*--cef(default_retval=UR_UNKNOWN)--*/
  virtual Status GetRequestStatus() =0;

  ///
  // Returns the request error if status is UR_CANCELED or UR_FAILED, or 0
  // otherwise.
  ///
  /*--cef(default_retval=ERR_NONE)--*/
  virtual ErrorCode GetRequestError() =0;

  ///
  // Returns the response, or NULL if no response information is available.
  // Response information will only be available after the upload has completed.
  // The returned object is read-only and should not be modified.
  ///
  /*--cef()--*/
  virtual CefRefPtr<CefResponse> GetResponse() =0;

  ///
  // Cancel the request.
  ///
  /*--cef()--*/
  virtual void Cancel() =0;
};

///
// Interface that should be implemented by the CefURLRequest client. The
// methods of this class will be called on the same thread that created the
// request.
///
/*--cef(source=client)--*/
class CefURLRequestClient : public virtual CefBase {
 public:
  ///
  // Notifies the client that the request has completed. Use the
  // CefURLRequest::GetRequestStatus method to determine if the request was
  // successful or not.
  ///
  /*--cef()--*/
  virtual void OnRequestComplete(CefRefPtr<CefURLRequest> request) =0;

  ///
  // Notifies the client of upload progress. |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). This method will only be called if the
  // UR_FLAG_REPORT_UPLOAD_PROGRESS flag is set on the request.
  ///
  /*--cef()--*/
  virtual void OnUploadProgress(CefRefPtr<CefURLRequest> request,
                                uint64 current,
                                uint64 total) =0;

  ///
  // Notifies the client of download progress. |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).
  ///
  /*--cef()--*/
  virtual void OnDownloadProgress(CefRefPtr<CefURLRequest> request,
                                  uint64 current,
                                  uint64 total) =0;

  ///
  // Called when some part of the response is read. |data| contains the current
  // bytes received since the last call. This method will not be called if the
  // UR_FLAG_NO_DOWNLOAD_DATA flag is set on the request.
  ///
  /*--cef()--*/
  virtual void OnDownloadData(CefRefPtr<CefURLRequest> request,
                              const void* data,
                              size_t data_length) =0;
};

#endif  // CEF_INCLUDE_CEF_URLREQUEST_H_