Father Chrysostomos

NAME

WWW::Scripter::Plugin::Ajax - WWW::Scripter plugin that provides the XMLHttpRequest object

VERSION

Version 0.09 (alpha)

SYNOPSIS

  use WWW::Scripter;
  $w = new WWW::Scripter;
  
  $m->use_plugin('Ajax');
  $m->get('http://some.site.com/that/relies/on/ajax');

DESCRIPTION

This module is a plugin for WWW::Scripter that loads the JavaScript plugin (WWW::Scripter::Plugin::JavaScript) and provides it with the XMLHttpRequest object.

To load the plugin, use WWW::Scripter's use_plugin method, as shown in the Synopsis. Any extra arguments to use_plugin will be passed on to the JavaScript plugin (at least for now).

ASYNCHRONY

The XMLHttpRequest object currently does not support asynchronous connections. Later this will probably become an option, at least for threaded perls.

NON-HTTP ADDRESSES

Since it uses LWP, URI schemes other than http (e.g., file, ftp) are supported.

INTERFACE

The XMLHttpRequest interface members supported so far are:

  Methods:
  open
  send
  abort
  getAllResponseHeaders
  getResponseHeader
  setRequestHeader
  
  Attributes:
  onreadystatechange
  readyState
  responseText
  responseXML
  status
  statusText
  
  Event-Related Methods:
  addEventListener
  removeEventListener
  dispatchEvent

  Constants (static properties):
  UNSENT
  OPENED
  HEADERS_RECEIVED
  LOADING
  DONE

responseBody, overrideMimeType, getRequestHeader, removeRequestHeader and more event attributes are likely to be added in future versions.

PREREQUISITES

This plugin requires perl 5.8.5 or higher, and the following modules:

  • WWW::Scripter::Plugin::JavaScript version 0.002 or later

  • constant::lexical

  • XML::DOM::Lite

  • HTML::DOM version 0.013 or later

  • Encode 2.09 or higher

  • WWW::Scripter

  • LWP 5.833 or higher

  • URI

BUGS

If you find any bugs, please report them to the author by e-mail (preferably with a patch :-).

XML::DOM::Lite is quite lenient toward badly-formed XML, so the responseXML property returns something useful even in cases when it should be null.

The SECURITY_ERR, NETWORK_ERR and ABORT_ERR constants are not available yet, as I don't know where to put them.

It does not conform to the spec in every detail, since the spec is still being written and is different every time I check it.

None of the additional features in the Level 2 spec are implemented.

There is currently no API to signal that the user has cancelled a connection. You can call the abort method, but that does not have exactly the same result that a user-initiated cancellation is meant to have.

Furthermore, this module follows the badly-designed API that is unfortunately the standard so I can't do anything about it.

AUTHOR & COPYRIGHT

Copyright (C) 2008-11 Father Chrysostomos <['sprout', ['org', 'cpan'].reverse().join('.')].join('@')>

This program is free software; you may redistribute it and/or modify it under the same terms as perl.

ACKNOWLEDGEMENTS

Erwan Mas provided a bug fix.

SEE ALSO

WWW::Scripter

WWW::Scripter::Plugin::JavaScript

XML::DOM::Lite

The XMLHttpRequest specification (draft as of August 2009): http://www.w3.org/TR/XMLHttpRequest/

XMLHttpRequest Level 2: http://www.w3.org/TR/XMLHttpRequest2/

WWW::Mechanize::Plugin::Ajax (the original version of this module)




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