<?php

namespace {
    /**
     * Action handler for outputting the form
     *
     * 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: Display.php 294028 2010-01-25 23:09:11Z avb $
     * @link       http://pear.php.net/package/HTML_QuickForm2
     */
    /** Interface for Controller action handlers */
    // require_once 'HTML/QuickForm2/Controller/Action.php';
    /** Class presenting the values stored in session by Controller as submitted ones */
    // require_once 'HTML/QuickForm2/DataSource/Session.php';
    /**
     * Action handler for outputting the form
     *
     * If you want to customize the form display, subclass this class and override
     * the renderForm() method, you don't need to change the perform() method.
     *
     * @category   HTML
     * @package    HTML_QuickForm2
     * @author     Alexey Borzov <avb@php.net>
     * @author     Bertrand Mansion <golgote@mamasam.com>
     * @version    Release: @package_version@
     */
    class HTML_QuickForm2_Controller_Action_Display implements \HTML_QuickForm2_Controller_Action
    {
        public function perform(\HTML_QuickForm2_Controller_Page $page, $name)
        {
            $validate = \false;
            $datasources = $page->getForm()->getDataSources();
            $container = $page->getController()->getSessionContainer();
            list(, $oldName) = $page->getController()->getActionName();
            // Check the original action name, we need to do additional processing
            // if it was 'display'
            if ('display' == $oldName) {
                // In case of wizard-type controller we should not allow access to
                // a page unless all previous pages are valid (see also bug #2323)
                if ($page->getController()->isWizard() && !$page->getController()->isValid($page)) {
                    return $page->getController()->getFirstInvalidPage()->handle('jump');
                }
                // If we have values in container then we should inject the Session
                // DataSource, if page was invalid previously we should later call
                // validate() to get the errors
                if (\count($container->getValues($page->getForm()->getId()))) {
                    \array_unshift($datasources, new \HTML_QuickForm2_DataSource_Session($container->getValues($page->getForm()->getId())));
                    $validate = \false === $container->getValidationStatus($page->getForm()->getId());
                }
            }
            // Add "defaults" datasources stored in session
            $page->getForm()->setDataSources(\array_merge($datasources, $container->getDatasources()));
            $page->populateFormOnce();
            if ($validate) {
                $page->getForm()->validate();
            }
            return $this->renderForm($page->getForm());
        }
        /**
         * Outputs the form
         *
         * Default behaviour is to rely on form's __toString() magic method.
         * If you want to customize form appearance or use a different Renderer,
         * you should override this method.
         *
         * @param    HTML_QuickForm2
         */
        protected function renderForm(\HTML_QuickForm2 $form)
        {
            echo $form;
        }
    }
}
