Proyectos de Subversion Moodle

<?php

/* vim: set expandtab tabstop=4 shiftwidth=4: */

// +----------------------------------------------------------------------+

// | PHP version 4.0                                                      |

// +----------------------------------------------------------------------+

// | Copyright (c) 1997-2003 The PHP Group                                |

// +----------------------------------------------------------------------+

// | This source file is subject to version 2.0 of the PHP license,       |

// | that is bundled with this package in the file LICENSE, and is        |

// | available at through the world-wide-web at                           |

// | http://www.php.net/license/2_02.txt.                                 |

// | If you did not receive a copy of the PHP license and are unable to   |

// | obtain it through the world-wide-web, please send a note to          |

// | license@php.net so we can mail you a copy immediately.               |

// +----------------------------------------------------------------------+

// | Authors: Alexey Borzov <borz_off@cs.msu.su>                          |

// |          Adam Daniel <adaniel1@eesus.jnj.com>                        |

// |          Bertrand Mansion <bmansion@mamasam.com>                     |

// |          Thomas Schulz <ths@4bconsult.de>                            |

// +----------------------------------------------------------------------+

//

// $Id$

require_once 'HTML/QuickForm/Renderer.php';

/**

 * A concrete renderer for HTML_QuickForm, makes an array of form contents

 *

 * Based on old toArray() code.

 *

 * The form array structure is the following:

 * array(

 *   'frozen'           => 'whether the form is frozen',

 *   'javascript'       => 'javascript for client-side validation',

 *   'attributes'       => 'attributes for <form> tag',

 *   'requirednote      => 'note about the required elements',

 *   // if we set the option to collect hidden elements

 *   'hidden'           => 'collected html of all hidden elements',

 *   // if there were some validation errors:

 *   'errors' => array(

 *     '1st element name' => 'Error for the 1st element',

 *     ...

 *     'nth element name' => 'Error for the nth element'

 *   ),

 *   // if there are no headers in the form:

 *   'elements' => array(

 *     element_1,

 *     ...

 *     element_N

 *   )

 *   // if there are headers in the form:

 *   'sections' => array(

 *     array(

 *       'header'   => 'Header text for the first header',

 *       'name'     => 'Header name for the first header',

 *       'elements' => array(

 *          element_1,

 *          ...

 *          element_K1

 *       )

 *     ),

 *     ...

 *     array(

 *       'header'   => 'Header text for the Mth header',

 *       'name'     => 'Header name for the Mth header',

 *       'elements' => array(

 *          element_1,

 *          ...

 *          element_KM

 *       )

 *     )

 *   )

 * );

 *

 * where element_i is an array of the form:

 * array(

 *   'name'      => 'element name',

 *   'value'     => 'element value',

 *   'type'      => 'type of the element',

 *   'frozen'    => 'whether element is frozen',

 *   'label'     => 'label for the element',

 *   'required'  => 'whether element is required',

 *   'error'     => 'error associated with the element',

 *   'style'     => 'some information about element style (e.g. for Smarty)',

 *   // if element is not a group

 *   'html'      => 'HTML for the element'

 *   // if element is a group

 *   'separator' => 'separator for group elements',

 *   'elements'  => array(

 *     element_1,

 *     ...

 *     element_N

 *   )

 * );

 *

 * @access public

 */

class HTML_QuickForm_Renderer_Array extends HTML_QuickForm_Renderer

{

   /**

    * An array being generated

    * @var array

    */

    var $_ary;

   /**

    * Number of sections in the form (i.e. number of headers in it)

    * @var integer

    */

    var $_sectionCount;

   /**

    * Current section number

    * @var integer

    */

    var $_currentSection;

   /**

    * Array representing current group

    * @var array

    */

    var $_currentGroup = null;

   /**

    * Additional style information for different elements

    * @var array

    */

    var $_elementStyles = array();

   /**

    * true: collect all hidden elements into string; false: process them as usual form elements

    * @var bool

    */

    var $_collectHidden = false;

   /**

    * true:  render an array of labels to many labels, $key 0 named 'label', the rest "label_$key"

    * false: leave labels as defined

    * @var bool

    */

    var $_staticLabels = false;

   /**

    * Constructor

    *

    * @param  bool    true: collect all hidden elements into string; false: process them as usual form elements

    * @param  bool    true: render an array of labels to many labels, $key 0 to 'label' and the oterh to "label_$key"

    * @access public

    */

    public function __construct($collectHidden = false, $staticLabels = false) {

        parent::__construct();

        $this->_collectHidden = $collectHidden;

        $this->_staticLabels  = $staticLabels;

    } // end constructor

    /**

     * Old syntax of class constructor. Deprecated in PHP7.

     *

     * @deprecated since Moodle 3.1

     */

    public function HTML_QuickForm_Renderer_Array($collectHidden = false, $staticLabels = false) {

        debugging('Use of class name as constructor is deprecated', DEBUG_DEVELOPER);

        self::__construct($collectHidden, $staticLabels);

    }

   /**

    * Returns the resultant array

    *

    * @access public

    * @return array

    */

    function toArray()

    {

        return $this->_ary;

    }

    function startForm(&$form)

    {

        $this->_ary = array(

            'frozen'            => $form->isFrozen(),

            'javascript'        => $form->getValidationScript(),

            'attributes'        => $form->getAttributes(true),

            'requirednote'      => $form->getRequiredNote(),

            'errors'            => array()

        );

        if ($this->_collectHidden) {

            $this->_ary['hidden'] = '';

        }

        $this->_currentSection = null;

        $this->_sectionCount   = 0;

    } // end func startForm

    function renderHeader(&$header)

    {

        $this->_ary['sections'][$this->_sectionCount] = array(

            'header' => $header->toHtml(),

            'name'   => $header->getName()

        );

        $this->_currentSection = $this->_sectionCount++;

    } // end func renderHeader

    function renderElement(&$element, $required, $error)

    {

        $elAry = $this->_elementToArray($element, $required, $error);

        if (!empty($error)) {

            $this->_ary['errors'][$elAry['name']] = $error;

        }

        $this->_storeArray($elAry);

    } // end func renderElement

    function renderHidden(&$element)

    {

        if ($this->_collectHidden) {

            $this->_ary['hidden'] .= $element->toHtml() . "\n";

        } else {

            $this->renderElement($element, false, null);

        }

    } // end func renderHidden

    function startGroup(&$group, $required, $error)

    {

        $this->_currentGroup = $this->_elementToArray($group, $required, $error);

        if (!empty($error)) {

            $this->_ary['errors'][$this->_currentGroup['name']] = $error;

        }

    } // end func startGroup

    function finishGroup(&$group)

    {

        $this->_storeArray($this->_currentGroup);

        $this->_currentGroup = null;

    } // end func finishGroup

   /**

    * Creates an array representing an element

    *

    * @access private

    * @param  object    An HTML_QuickForm_element object

    * @param  bool      Whether an element is required

    * @param  string    Error associated with the element

    * @return array

    */

    function _elementToArray(&$element, $required, $error)

    {

        $ret = array(

            'name'      => $element->getName(),

            'value'     => $element->getValue(),

            'type'      => $element->getType(),

            'frozen'    => $element->isFrozen(),

            'required'  => $required,

            'error'     => $error

        );

        // render label(s)

        $labels = $element->getLabel();

        if (is_array($labels) && $this->_staticLabels) {

            foreach($labels as $key => $label) {

                $key = is_int($key)? $key + 1: $key;

                if (1 === $key) {

                    $ret['label'] = $label;

                } else {

                    $ret['label_' . $key] = $label;

                }

            }

        } else {

            $ret['label'] = $labels;

        }

        // set the style for the element

        if (isset($this->_elementStyles[$ret['name']])) {

            $ret['style'] = $this->_elementStyles[$ret['name']];

        }

        if ('group' == $ret['type']) {

            $ret['separator'] = $element->_separator;

            $ret['elements']  = array();

        } else {

            $ret['html']      = $element->toHtml();

        }

        return $ret;

    }

   /**

    * Stores an array representation of an element in the form array

    *

    * @access private

    * @param array  Array representation of an element

    * @return void

    */

    function _storeArray($elAry)

    {

        // where should we put this element...

        if (is_array($this->_currentGroup) && ('group' != $elAry['type'])) {

            $this->_currentGroup['elements'][] = $elAry;

        } elseif (isset($this->_currentSection)) {

            $this->_ary['sections'][$this->_currentSection]['elements'][] = $elAry;

        } else {

            $this->_ary['elements'][] = $elAry;

        }

    }

   /**

    * Sets a style to use for element rendering

    *

    * @param mixed      element name or array ('element name' => 'style name')

    * @param string     style name if $elementName is not an array

    * @access public

    * @return void

    */

    function setElementStyle($elementName, $styleName = null)

    {

        if (is_array($elementName)) {

            $this->_elementStyles = array_merge($this->_elementStyles, $elementName);

        } else {

            $this->_elementStyles[$elementName] = $styleName;

        }

    }

}

?>