[Blog] Jbh_Webservice (http://jacques.sh/vos-blocs-en-ajax-via-webservice.html)

config.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
/**
 * This file is part of Jbh_Webservice for Magento.
 *
 * This program is free software. It comes without any warranty, to
 * the extent permitted by applicable law. You can redistribute it
 * and/or modify it under the terms of the Do What The Fuck You Want
 * To Public License, Version 2, as published by Sam Hocevar. See
 * http://sam.zoy.org/wtfpl/COPYING for more details.
 *
 * @license WTFPL
 * @author Jacques Bodin-Hullin <jacques@bodin-hullin.net>
 * @category Jbh
 * @package Jbh_Webservice
 * @copyright Copyright (c) 2012 Jacques Bodin-Hullin (http://jacques.sh/)
 */
-->
<config>
    <modules>
        <Jbh_Webservice>
            <version>0.1.0</version>
        </Jbh_Webservice>
    </modules>
    <frontend>
        <routers>
            <jbh_webservice>
                <use>standard</use>
                <args>
                    <module>Jbh_Webservice</module>
                    <frontName>webservice</frontName>
                </args>
            </jbh_webservice>
        </routers>
    </frontend>
</config>

demo.js

/**
 * This file is part of Jbh_Webservice for Magento.
 *
 * This program is free software. It comes without any warranty, to
 * the extent permitted by applicable law. You can redistribute it
 * and/or modify it under the terms of the Do What The Fuck You Want
 * To Public License, Version 2, as published by Sam Hocevar. See
 * http://sam.zoy.org/wtfpl/COPYING for more details.
 *
 * @license WTFPL
 * @author Jacques Bodin-Hullin <jacques@bodin-hullin.net>
 * @category Jbh
 * @package Jbh_Webservice
 * @copyright Copyright (c) 2012 Jacques Bodin-Hullin (http://jacques.sh/)
 */

var BASE_ECOM_URL = 'http://example.org/';

(function ($) {
    $(document).ready(function () {
        $.getJSON(BASE_ECOM_URL + 'webservice/page/footer?callback=?', function (data) {
            $('#footer').replaceWith($(data.html));
        });
    });
})(jQuery);

Jbh_Webservice.xml

<?xml version="1.0" encoding="utf-8" ?>
<!--
/**
 * This file is part of Jbh_Webservice for Magento.
 *
 * This program is free software. It comes without any warranty, to
 * the extent permitted by applicable law. You can redistribute it
 * and/or modify it under the terms of the Do What The Fuck You Want
 * To Public License, Version 2, as published by Sam Hocevar. See
 * http://sam.zoy.org/wtfpl/COPYING for more details.
 *
 * @license WTFPL
 * @author Jacques Bodin-Hullin <jacques@bodin-hullin.net>
 * @category Jbh
 * @package Jbh_Webservice
 * @copyright Copyright (c) 2012 Jacques Bodin-Hullin (http://jacques.sh/)
 */
-->
<config>
    <modules>
        <Jbh_Webservice>
            <active>true</active>
            <codePool>community</codePool>
        </Jbh_Webservice>
    </modules>
</config>

LICENSE

            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
                    Version 2, December 2004

 Copyright (C) 2004 Sam Hocevar <sam@hocevar.net>

 Everyone is permitted to copy and distribute verbatim or modified
 copies of this license document, and changing it is allowed as long
 as the name is changed.

            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION

  0. You just DO WHAT THE FUCK YOU WANT TO.

PageController.php

<?php
/**
 * This file is part of Jbh_Webservice for Magento.
 *
 * This program is free software. It comes without any warranty, to
 * the extent permitted by applicable law. You can redistribute it
 * and/or modify it under the terms of the Do What The Fuck You Want
 * To Public License, Version 2, as published by Sam Hocevar. See
 * http://sam.zoy.org/wtfpl/COPYING for more details.
 *
 * @license WTFPL
 * @author Jacques Bodin-Hullin <jacques@bodin-hullin.net>
 * @category Jbh
 * @package Jbh_Webservice
 * @copyright Copyright (c) 2012 Jacques Bodin-Hullin (http://jacques.sh/)
 */

/**
 * Page Controller
 * @package Jbh_Webservice
 */
class Jbh_Webservice_PageController extends Mage_Core_Controller_Front_Action
{

    /**
     * The query callback name
     * @const QUERY_CALLBACK_NAME string
     */
    const QUERY_CALLBACK_NAME = 'callback';

    /**
     * Retrieve the default footer :)
     * @access public
     * @return void
     */
    public function footerAction()
    {
        // Load the layout and render !
        $this->loadLayout();

        // Remove the output for the root block
        $this->getLayout()->removeOutputBlock('root');

        // Yeah ;)
        $this->renderLayout('footer');
    }

    /**
     * Need JSONP ? We use the postDispatch.
     * @access public
     * @return void
     */
    public function postDispatch()
    {
        // If we have an URL like .../?callback=callbackName
        if ($callback = $this->getRequest()->getParam(self::QUERY_CALLBACK_NAME, false)) {
            // We change the content :)
            $body = $callback . '(' . json_encode(array('html' => $this->getResponse()->getBody())) . ')';
            $this->getResponse()->setBody($body);
        }

        return parent::postDispatch();
    }

}