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588 lines
18 KiB
588 lines
18 KiB
<?php
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/* vim: set expandtab tabstop=4 shiftwidth=4: */
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// +----------------------------------------------------------------------+
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// | PHP version 4.0 |
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// +----------------------------------------------------------------------+
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// | Copyright (c) 1997, 1998, 1999, 2000, 2001 The PHP Group |
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// +----------------------------------------------------------------------+
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// | This source file is subject to version 2.0 of the PHP license, |
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// | that is bundled with this package in the file LICENSE, and is |
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// | available at through the world-wide-web at |
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// | http://www.php.net/license/2_02.txt. |
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// | If you did not receive a copy of the PHP license and are unable to |
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// | obtain it through the world-wide-web, please send a note to |
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// | license@php.net so we can mail you a copy immediately. |
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// +----------------------------------------------------------------------+
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// | Authors: Adam Daniel <adaniel1@eesus.jnj.com> |
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// | Bertrand Mansion <bmansion@mamasam.com> |
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// +----------------------------------------------------------------------+
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//
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// $Id$
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require_once("HTML/QuickForm/element.php");
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/**
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* HTML class for a form element group
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*
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* @author Adam Daniel <adaniel1@eesus.jnj.com>
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* @author Bertrand Mansion <bmansion@mamasam.com>
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* @version 1.0
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* @since PHP4.04pl1
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* @access public
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*/
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class HTML_QuickForm_group extends HTML_QuickForm_element
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{
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// {{{ properties
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/**
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* Name of the element
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* @var string
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* @since 1.0
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* @access private
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*/
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var $_name = '';
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/**
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* Array of grouped elements
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* @var array
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* @since 1.0
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* @access private
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*/
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var $_elements = array();
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/**
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* String to separate elements
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* @var mixed
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* @since 2.5
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* @access private
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*/
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var $_separator = null;
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/**
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* Required elements in this group
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* @var array
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* @since 2.5
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* @access private
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*/
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var $_required = array();
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/**
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* Whether to change elements' names to $groupName[$elementName] or leave them as is
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* @var bool
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* @since 3.0
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* @access private
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*/
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var $_appendName = true;
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// }}}
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// {{{ constructor
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/**
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* Class constructor
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*
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* @param string $elementName (optional)Group name
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* @param array $elementLabel (optional)Group label
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* @param array $elements (optional)Group elements
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* @param mixed $separator (optional)Use a string for one separator,
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* use an array to alternate the separators.
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* @param bool $appendName (optional)whether to change elements' names to
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* the form $groupName[$elementName] or leave
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* them as is.
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* @since 1.0
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* @access public
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* @return void
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*/
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public function __construct($elementName=null, $elementLabel=null, $elements=null, $separator=null, $appendName = true) {
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parent::__construct($elementName, $elementLabel);
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$this->_type = 'group';
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if (isset($elements) && is_array($elements)) {
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$this->setElements($elements);
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}
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if (isset($separator)) {
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$this->_separator = $separator;
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}
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if (isset($appendName)) {
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$this->_appendName = $appendName;
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}
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} //end constructor
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/**
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* Old syntax of class constructor. Deprecated in PHP7.
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*
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* @deprecated since Moodle 3.1
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*/
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public function HTML_QuickForm_group($elementName=null, $elementLabel=null, $elements=null, $separator=null, $appendName = true) {
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debugging('Use of class name as constructor is deprecated', DEBUG_DEVELOPER);
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self::__construct($elementName, $elementLabel, $elements, $separator, $appendName);
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}
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// }}}
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// {{{ setName()
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/**
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* Sets the group name
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*
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* @param string $name Group name
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* @since 1.0
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* @access public
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* @return void
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*/
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function setName($name)
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{
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$this->_name = $name;
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} //end func setName
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// }}}
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// {{{ getName()
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/**
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* Returns the group name
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*
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* @since 1.0
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* @access public
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* @return string
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*/
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function getName()
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{
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return $this->_name;
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} //end func getName
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// }}}
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// {{{ setValue()
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/**
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* Sets values for group's elements
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*
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* @param mixed Values for group's elements
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* @since 1.0
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* @access public
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* @return void
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*/
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function setValue($value)
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{
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$this->_createElementsIfNotExist();
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foreach (array_keys($this->_elements) as $key) {
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if (!$this->_appendName) {
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$v = $this->_elements[$key]->_findValue($value);
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if (null !== $v) {
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$this->_elements[$key]->onQuickFormEvent('setGroupValue', $v, $this);
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}
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} else {
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$elementName = $this->_elements[$key]->getName();
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$index = strlen($elementName) ? $elementName : $key;
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if (is_array($value)) {
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if (isset($value[$index])) {
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$this->_elements[$key]->onQuickFormEvent('setGroupValue', $value[$index], $this);
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}
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} elseif (isset($value)) {
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$this->_elements[$key]->onQuickFormEvent('setGroupValue', $value, $this);
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}
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}
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}
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} //end func setValue
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// }}}
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// {{{ getValue()
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/**
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* Returns the value of the group
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*
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* @since 1.0
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* @access public
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* @return mixed
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*/
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function getValue()
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{
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$value = null;
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foreach (array_keys($this->_elements) as $key) {
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$element =& $this->_elements[$key];
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switch ($element->getType()) {
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case 'radio':
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$v = $element->getChecked()? $element->getValue(): null;
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break;
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case 'checkbox':
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$v = $element->getChecked()? true: null;
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break;
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default:
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$v = $element->getValue();
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}
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if (null !== $v) {
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$elementName = $element->getName();
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if (is_null($elementName)) {
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$value = $v;
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} else {
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if (!is_array($value)) {
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$value = is_null($value)? array(): array($value);
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}
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if ('' === $elementName) {
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$value[] = $v;
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} else {
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$value[$elementName] = $v;
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}
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}
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}
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}
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return $value;
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} // end func getValue
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// }}}
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// {{{ setElements()
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/**
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* Sets the grouped elements
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*
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* @param array $elements Array of elements
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* @since 1.1
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* @access public
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* @return void
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*/
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function setElements($elements)
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{
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$this->_elements = array_values($elements);
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if ($this->_flagFrozen) {
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$this->freeze();
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}
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} // end func setElements
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// }}}
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// {{{ getElements()
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/**
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* Gets the grouped elements
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*
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* @since 2.4
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* @access public
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* @return array
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*/
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function &getElements()
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{
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$this->_createElementsIfNotExist();
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return $this->_elements;
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} // end func getElements
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// }}}
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// {{{ getGroupType()
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/**
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* Gets the group type based on its elements
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* Will return 'mixed' if elements contained in the group
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* are of different types.
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*
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* @access public
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* @return string group elements type
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*/
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function getGroupType()
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{
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$this->_createElementsIfNotExist();
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$prevType = '';
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foreach (array_keys($this->_elements) as $key) {
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$type = $this->_elements[$key]->getType();
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if ($type != $prevType && $prevType != '') {
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return 'mixed';
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}
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$prevType = $type;
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}
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return $type;
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} // end func getGroupType
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// }}}
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// {{{ toHtml()
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/**
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* Returns Html for the group
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*
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* @since 1.0
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* @access public
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* @return string
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*/
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function toHtml()
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{
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include_once('HTML/QuickForm/Renderer/Default.php');
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$renderer = new HTML_QuickForm_Renderer_Default();
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$renderer->setElementTemplate('{element}');
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$this->accept($renderer);
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return $renderer->toHtml();
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} //end func toHtml
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// }}}
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// {{{ getElementName()
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/**
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* Returns the element name inside the group such as found in the html form
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*
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* @param mixed $index Element name or element index in the group
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* @since 3.0
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* @access public
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* @return mixed string with element name, false if not found
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*/
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function getElementName($index)
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{
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$this->_createElementsIfNotExist();
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$elementName = false;
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if (is_int($index) && isset($this->_elements[$index])) {
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$elementName = $this->_elements[$index]->getName();
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if (isset($elementName) && $elementName == '') {
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$elementName = $index;
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}
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if ($this->_appendName) {
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if (is_null($elementName)) {
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$elementName = $this->getName();
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} else {
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$elementName = $this->getName().'['.$elementName.']';
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}
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}
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} elseif (is_string($index)) {
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foreach (array_keys($this->_elements) as $key) {
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$elementName = $this->_elements[$key]->getName();
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if ($index == $elementName) {
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if ($this->_appendName) {
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$elementName = $this->getName().'['.$elementName.']';
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}
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break;
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} elseif ($this->_appendName && $this->getName().'['.$elementName.']' == $index) {
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break;
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}
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}
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}
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return $elementName;
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} //end func getElementName
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// }}}
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// {{{ getFrozenHtml()
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/**
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* Returns the value of field without HTML tags
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*
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* @since 1.3
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* @access public
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* @return string
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*/
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function getFrozenHtml()
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{
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$flags = array();
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$this->_createElementsIfNotExist();
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foreach (array_keys($this->_elements) as $key) {
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if (false === ($flags[$key] = $this->_elements[$key]->isFrozen())) {
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$this->_elements[$key]->freeze();
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}
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}
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$html = $this->toHtml();
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foreach (array_keys($this->_elements) as $key) {
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if (!$flags[$key]) {
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$this->_elements[$key]->unfreeze();
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}
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}
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return $html;
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} //end func getFrozenHtml
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// }}}
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// {{{ onQuickFormEvent()
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/**
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* Called by HTML_QuickForm whenever form event is made on this element
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*
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* @param string $event Name of event
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* @param mixed $arg event arguments
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* @param object $caller calling object
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* @since 1.0
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* @access public
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* @return void
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*/
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function onQuickFormEvent($event, $arg, &$caller)
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{
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switch ($event) {
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case 'updateValue':
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$this->_createElementsIfNotExist();
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foreach (array_keys($this->_elements) as $key) {
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if ($this->_appendName) {
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$elementName = $this->_elements[$key]->getName();
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if (is_null($elementName)) {
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$this->_elements[$key]->setName($this->getName());
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} elseif ('' === $elementName) {
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$this->_elements[$key]->setName($this->getName() . '[' . $key . ']');
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} else {
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$this->_elements[$key]->setName($this->getName() . '[' . $elementName . ']');
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}
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}
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$this->_elements[$key]->onQuickFormEvent('updateValue', $arg, $caller);
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if ($this->_appendName) {
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$this->_elements[$key]->setName($elementName);
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}
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}
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break;
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default:
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parent::onQuickFormEvent($event, $arg, $caller);
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}
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return true;
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} // end func onQuickFormEvent
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// }}}
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// {{{ accept()
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/**
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* Accepts a renderer
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*
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* @param object An HTML_QuickForm_Renderer object
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* @param bool Whether a group is required
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* @param string An error message associated with a group
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* @access public
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* @return void
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*/
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function accept(&$renderer, $required = false, $error = null)
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{
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$this->_createElementsIfNotExist();
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$renderer->startGroup($this, $required, $error);
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$name = $this->getName();
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foreach (array_keys($this->_elements) as $key) {
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$element =& $this->_elements[$key];
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if ($this->_appendName) {
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$elementName = $element->getName();
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if (isset($elementName)) {
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$element->setName($name . '['. (strlen($elementName)? $elementName: $key) .']');
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} else {
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$element->setName($name);
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}
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}
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$required = !$element->isFrozen() && in_array($element->getName(), $this->_required);
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$element->accept($renderer, $required);
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// restore the element's name
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if ($this->_appendName) {
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$element->setName($elementName);
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}
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}
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$renderer->finishGroup($this);
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} // end func accept
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// }}}
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// {{{ exportValue()
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/**
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* As usual, to get the group's value we access its elements and call
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* their exportValue() methods
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*/
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function exportValue(&$submitValues, $assoc = false)
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{
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$value = null;
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foreach (array_keys($this->_elements) as $key) {
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$elementName = $this->_elements[$key]->getName();
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if ($this->_appendName) {
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if (is_null($elementName)) {
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$this->_elements[$key]->setName($this->getName());
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} elseif ('' === $elementName) {
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$this->_elements[$key]->setName($this->getName() . '[' . $key . ']');
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} else {
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$this->_elements[$key]->setName($this->getName() . '[' . $elementName . ']');
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}
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}
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$v = $this->_elements[$key]->exportValue($submitValues, $assoc);
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if ($this->_appendName) {
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$this->_elements[$key]->setName($elementName);
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}
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if (null !== $v) {
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// Make $value an array, we will use it like one
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if (null === $value) {
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$value = array();
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}
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if ($assoc) {
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// just like HTML_QuickForm::exportValues()
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$value = HTML_QuickForm::arrayMerge($value, $v);
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} else {
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// just like getValue(), but should work OK every time here
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if (is_null($elementName)) {
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$value = $v;
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} elseif ('' === $elementName) {
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$value[] = $v;
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} else {
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$value[$elementName] = $v;
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}
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}
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}
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}
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// do not pass the value through _prepareValue, we took care of this already
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return $value;
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}
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// }}}
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// {{{ _createElements()
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/**
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* Creates the group's elements.
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*
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* This should be overriden by child classes that need to create their
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* elements. The method will be called automatically when needed, calling
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* it from the constructor is discouraged as the constructor is usually
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* called _twice_ on element creation, first time with _no_ parameters.
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*
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* @access private
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* @abstract
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*/
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function _createElements()
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{
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// abstract
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}
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// }}}
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// {{{ _createElementsIfNotExist()
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/**
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* A wrapper around _createElements()
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*
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* This method calls _createElements() if the group's _elements array
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* is empty. It also performs some updates, e.g. freezes the created
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* elements if the group is already frozen.
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*
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* @access private
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*/
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function _createElementsIfNotExist()
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{
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if (empty($this->_elements)) {
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$this->_createElements();
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if ($this->_flagFrozen) {
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$this->freeze();
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}
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}
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}
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// }}}
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// {{{ freeze()
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|
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function freeze()
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{
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parent::freeze();
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foreach (array_keys($this->_elements) as $key) {
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$this->_elements[$key]->freeze();
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}
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}
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// }}}
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// {{{ unfreeze()
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|
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function unfreeze()
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{
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parent::unfreeze();
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foreach (array_keys($this->_elements) as $key) {
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$this->_elements[$key]->unfreeze();
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}
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}
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// }}}
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|
// {{{ setPersistantFreeze()
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|
|
|
function setPersistantFreeze($persistant = false)
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|
{
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|
parent::setPersistantFreeze($persistant);
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|
foreach (array_keys($this->_elements) as $key) {
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|
$this->_elements[$key]->setPersistantFreeze($persistant);
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}
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}
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|
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// }}}
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} //end class HTML_QuickForm_group
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?>
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