<?php

namespace {
    /**
     * Javascript aggregator and builder class
     *
     * PHP version 5
     *
     * LICENSE:
     *
     * Copyright (c) 2006-2010, Alexey Borzov <avb@php.net>,
     *                          Bertrand Mansion <golgote@mamasam.com>
     * 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.
     *    * The names of the authors may not 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, DATA, OR
     * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
     * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     *
     * @category   HTML
     * @package    HTML_QuickForm2
     * @author     Alexey Borzov <avb@php.net>
     * @author     Bertrand Mansion <golgote@mamasam.com>
     * @license    http://opensource.org/licenses/bsd-license.php New BSD License
     * @version    SVN: $Id: JavascriptBuilder.php 299480 2010-05-19 06:55:03Z avb $
     * @link       http://pear.php.net/package/HTML_QuickForm2
     */
    /**
     * Exception classes for HTML_QuickForm2
     */
    // require_once 'HTML/QuickForm2/Exception.php';
    require_once \dirname(__FILE__) . '/Exception.php';
    /**
     * Javascript aggregator and builder class
     *
     * @category   HTML
     * @package    HTML_QuickForm2
     * @author     Alexey Borzov <avb@php.net>
     * @author     Bertrand Mansion <golgote@mamasam.com>
     * @version    Release: @package_version@
     */
    class HTML_QuickForm2_JavascriptBuilder
    {
        /**
         * Client-side rules
         * @var array
         */
        protected $rules = array();
        /**
         * Current form ID
         * @var string
         */
        protected $formId = null;
        /**
         * Sets the form currently being processed
         *
         * @param HTML_QuickForm2
         */
        public function startForm(\HTML_QuickForm2 $form)
        {
            $this->formId = $form->getId();
            $this->rules[$this->formId] = array();
        }
        /**
         * Adds the Rule javascript to the list of current form Rules
         *
         * @param HTML_QuickForm2_Rule
         */
        public function addRule(\HTML_QuickForm2_Rule $rule)
        {
            $this->rules[$this->formId][] = $rule->getJavascript();
        }
        /**
         * Returns client-side validation code
         *
         * @todo This shouldn't probably be __toString() as we can't throw exceptions from that
         * @todo Of course we shouldn't put library files into each page, need some means to include them via <script> tags
         */
        public function __toString()
        {
            $js = '';
            foreach ($this->rules as $formId => $rules) {
                if (!empty($rules)) {
                    $js .= "new qf.validator(document.getElementById('{$formId}'), [\n" . \implode(",\n", $rules) . "\n]);";
                }
            }
            if ('' != $js) {
                $js = "<script type=\"text/javascript\">\n//<![CDATA[\n" . \file_get_contents('@data_dir@/HTML_QuickForm2/quickform.js') . "qf.events.contentReady(function() {\n{$js}\n});\n" . "//]]>\n</script>";
            }
            return $js;
        }
    }
}
