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604 lines
18 KiB
PHP
604 lines
18 KiB
PHP
<?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) 1997-2003 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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require_once('HTML/QuickForm/element.php');
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/**
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* Class to dynamically create an HTML SELECT with all options grouped in optgroups
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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 MoodleQuickForm_selectgroups extends HTML_QuickForm_element {
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// {{{ properties
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/** add choose option */
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var $showchoose = false;
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/**
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* Contains the select optgroups
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*
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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 $_optGroups = array();
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/**
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* Default values of the SELECT
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*
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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 $_values = null;
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/**
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* html for help button, if empty then no help
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*
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* @var string
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*/
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var $_helpbutton='';
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var $_hiddenLabel=false;
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/**
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* Class constructor
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*
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* @param string Select name attribute
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* @param mixed Label(s) for the select
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* @param mixed Data to be used to populate options
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* @param mixed An array whose keys are labels for optgroups and whose values are arrays similar to those passed
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* to the select element with keys that are values for options and values are strings for display.
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* @param mixed Either a typical HTML attribute string or an associative array
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* @param bool add standard moodle "Choose..." option as first item
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* @since 1.0
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* @access public
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* @return void
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*/
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function MoodleQuickForm_selectgroups($elementName=null, $elementLabel=null, $optgrps=null, $attributes=null, $showchoose=false)
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{
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$this->showchoose = $showchoose;
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HTML_QuickForm_element::HTML_QuickForm_element($elementName, $elementLabel, $attributes);
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$this->_persistantFreeze = true;
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$this->_type = 'selectgroups';
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if (isset($optgrps)) {
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$this->loadArrayOptGroups($optgrps);
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}
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} //end constructor
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// }}}
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// {{{ apiVersion()
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/**
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* Sets the default values of the select box
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*
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* @param mixed $values Array or comma delimited string of selected values
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* @since 1.0
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* @access public
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* @return void
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*/
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function setSelected($values)
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{
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if (is_string($values) && $this->getMultiple()) {
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$values = split("[ ]?,[ ]?", $values);
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}
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if (is_array($values)) {
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$this->_values = array_values($values);
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} else {
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$this->_values = array($values);
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}
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} //end func setSelected
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// }}}
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// {{{ getSelected()
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/**
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* Returns an array of the selected values
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*
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* @since 1.0
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* @access public
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* @return array of selected values
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*/
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function getSelected()
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{
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return $this->_values;
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} // end func getSelected
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// }}}
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// {{{ setName()
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/**
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* Sets the input field name
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*
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* @param string $name Input field name attribute
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* @since 1.0
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* @access public
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* @return void
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*/
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function setName($name)
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{
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$this->updateAttributes(array('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 element 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 $this->getAttribute('name');
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} //end func getName
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// }}}
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// {{{ getPrivateName()
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/**
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* Returns the element name (possibly with brackets appended)
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*
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* @since 1.0
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* @access public
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* @return string
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*/
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function getPrivateName()
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{
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if ($this->getAttribute('multiple')) {
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return $this->getName() . '[]';
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} else {
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return $this->getName();
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}
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} //end func getPrivateName
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// }}}
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// {{{ setValue()
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/**
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* Sets the value of the form element
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*
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* @param mixed $values Array or comma delimited string of selected values
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* @since 1.0
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* @access public
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* @return void
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*/
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function setValue($value)
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{
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$this->setSelected($value);
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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 an array of the selected values
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*
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* @since 1.0
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* @access public
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* @return array of selected values
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*/
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function getValue()
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{
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return $this->_values;
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} // end func getValue
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// }}}
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// {{{ setSize()
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/**
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* Sets the select field size, only applies to 'multiple' selects
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*
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* @param int $size Size of select field
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* @since 1.0
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* @access public
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* @return void
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*/
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function setSize($size)
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{
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$this->updateAttributes(array('size' => $size));
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} //end func setSize
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// }}}
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// {{{ getSize()
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/**
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* Returns the select field size
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*
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* @since 1.0
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* @access public
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* @return int
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*/
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function getSize()
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{
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return $this->getAttribute('size');
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} //end func getSize
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// }}}
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// {{{ setMultiple()
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/**
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* Sets the select mutiple attribute
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*
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* @param bool $multiple Whether the select supports multi-selections
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* @since 1.2
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* @access public
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* @return void
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*/
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function setMultiple($multiple)
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{
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if ($multiple) {
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$this->updateAttributes(array('multiple' => 'multiple'));
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} else {
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$this->removeAttribute('multiple');
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}
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} //end func setMultiple
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// }}}
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// {{{ getMultiple()
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/**
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* Returns the select mutiple attribute
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*
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* @since 1.2
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* @access public
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* @return bool true if multiple select, false otherwise
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*/
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function getMultiple()
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{
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return (bool)$this->getAttribute('multiple');
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} //end func getMultiple
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/**
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* Loads the options from an associative array
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*
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* @param array $arr Associative array of options
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* @param mixed $values (optional) Array or comma delimited string of selected values
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* @since 1.0
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* @access public
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* @return PEAR_Error on error or true
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* @throws PEAR_Error
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*/
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function loadArrayOptGroups($arr, $values=null)
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{
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if (!is_array($arr)) {
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return PEAR::raiseError('Argument 1 of HTML_Select::loadArrayOptGroups is not a valid array');
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}
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if (isset($values)) {
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$this->setSelected($values);
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}
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foreach ($arr as $key => $val) {
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// Warning: new API since release 2.3
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$this->addOptGroup($key, $val);
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}
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return true;
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}
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/**
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* Adds a new OPTION to the SELECT
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*
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* @param string $text Display text for the OPTION
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* @param string $value Value for the OPTION
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* @param mixed $attributes Either a typical HTML attribute string
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* or an associative array
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* @since 1.0
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* @access public
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* @return void
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*/
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function addOptGroup($text, $value, $attributes=null)
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{
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if (null === $attributes) {
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$attributes = array('label' => $text);
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} else {
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$attributes = $this->_parseAttributes($attributes);
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$this->_updateAttrArray($attributes, array('label' => $text));
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}
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$index = count($this->_optGroups);
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$this->_optGroups[$index] = array('attr' => $attributes);
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$this->loadArrayOptions($index, $value);
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}
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/**
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* Loads the options from an associative array
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*
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* @param array $arr Associative array of options
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* @param mixed $values (optional) Array or comma delimited string of selected values
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* @since 1.0
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* @access public
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* @return PEAR_Error on error or true
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* @throws PEAR_Error
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*/
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function loadArrayOptions($optgroup, $arr, $values=null)
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{
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if (!is_array($arr)) {
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return PEAR::raiseError('Argument 1 of HTML_Select::loadArray is not a valid array');
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}
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if (isset($values)) {
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$this->setSelected($values);
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}
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foreach ($arr as $key => $val) {
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// Warning: new API since release 2.3
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$this->addOption($optgroup, $val, $key);
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}
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return true;
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}
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/**
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* Adds a new OPTION to an optgroup
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*
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* @param string $text Display text for the OPTION
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* @param string $value Value for the OPTION
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* @param mixed $attributes Either a typical HTML attribute string
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* or an associative array
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* @since 1.0
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* @access public
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* @return void
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*/
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function addOption($optgroup, $text, $value, $attributes=null)
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{
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if (null === $attributes) {
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$attributes = array('value' => $value);
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} else {
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$attributes = $this->_parseAttributes($attributes);
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if (isset($attributes['selected'])) {
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// the 'selected' attribute will be set in toHtml()
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$this->_removeAttr('selected', $attributes);
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if (is_null($this->_values)) {
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$this->_values = array($value);
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} elseif (!in_array($value, $this->_values)) {
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$this->_values[] = $value;
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}
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}
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$this->_updateAttrArray($attributes, array('value' => $value));
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}
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$this->_optGroups[$optgroup]['options'][] = array('text' => $text, 'attr' => $attributes);
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}
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/**
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* Returns the SELECT in HTML
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*
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* @since 1.0
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* @access public
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* @return string
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*/
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function toHtml()
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{
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if ($this->_flagFrozen) {
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return $this->getFrozenHtml();
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} else {
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$tabs = $this->_getTabs();
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$strHtml = '';
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if ($this->getComment() != '') {
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$strHtml .= $tabs . '<!-- ' . $this->getComment() . " //-->\n";
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}
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if (!$this->getMultiple()) {
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$attrString = $this->_getAttrString($this->_attributes);
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} else {
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$myName = $this->getName();
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$this->setName($myName . '[]');
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$attrString = $this->_getAttrString($this->_attributes);
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$this->setName($myName);
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}
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$strHtml .= $tabs;
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if ($this->_hiddenLabel){
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$this->_generateId();
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$strHtml .= '<label class="accesshide" for="'.$this->getAttribute('id').'" >'.
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$this->getLabel().'</label>';
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}
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$strHtml .= '<select' . $attrString . ">\n";
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if ($this->showchoose) {
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$strHtml .= $tabs . "\t\t<option value=\"\">" . get_string('choose') . "...</option>\n";
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}
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foreach ($this->_optGroups as $optGroup) {
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if (empty($optGroup['options'])) {
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//xhtml strict
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continue;
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}
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$strHtml .= $tabs . "\t<optgroup" . ($this->_getAttrString($optGroup['attr'])) . '>';
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foreach ($optGroup['options'] as $option){
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if (is_array($this->_values) && in_array((string)$option['attr']['value'], $this->_values)) {
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$this->_updateAttrArray($option['attr'], array('selected' => 'selected'));
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}
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$strHtml .= $tabs . "\t\t<option" . $this->_getAttrString($option['attr']) . '>' .
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$option['text'] . "</option>\n";
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}
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$strHtml .= $tabs . "\t</optgroup>\n";
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}
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return $strHtml . $tabs . '</select>';
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}
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} //end func toHtml
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// }}}
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// {{{ getFrozenHtml()
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/**
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* Returns the value of field without HTML tags
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*
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* @since 1.0
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* @access public
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* @return string
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*/
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function getFrozenHtml()
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{
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$value = array();
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if (is_array($this->_values)) {
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foreach ($this->_values as $key => $val) {
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foreach ($this->_optGroups as $optGroup) {
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for ($i = 0, $optCount = count($optGroup['options']); $i < $optCount; $i++) {
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if ((string)$val == (string)$optGroup['options'][$i]['attr']['value']) {
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$value[$key] = $optGroup['options'][$i]['text'];
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break;
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}
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}
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}
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}
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}
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$html = empty($value)? ' ': join('<br />', $value);
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if ($this->_persistantFreeze) {
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$name = $this->getPrivateName();
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// Only use id attribute if doing single hidden input
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if (1 == count($value)) {
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$id = $this->getAttribute('id');
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$idAttr = isset($id)? array('id' => $id): array();
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} else {
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$idAttr = array();
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}
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foreach ($value as $key => $item) {
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$html .= '<input' . $this->_getAttrString(array(
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'type' => 'hidden',
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'name' => $name,
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'value' => $this->_values[$key]
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) + $idAttr) . ' />';
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}
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}
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return $html;
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} //end func getFrozenHtml
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// }}}
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// {{{ exportValue()
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/**
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* We check the options and return only the values that _could_ have been
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* selected. We also return a scalar value if select is not "multiple"
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*/
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function exportValue(&$submitValues, $assoc = false)
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{
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if (empty($this->_optGroups)) {
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return $this->_prepareValue(null, $assoc);
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}
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$value = $this->_findValue($submitValues);
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if (is_null($value)) {
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$value = $this->getValue();
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}
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$value = (array)$value;
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$cleaned = array();
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foreach ($value as $v) {
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foreach ($this->_optGroups as $optGroup){
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if (empty($optGroup['options'])) {
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continue;
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}
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foreach ($optGroup['options'] as $option) {
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if ((string)$option['attr']['value'] === (string)$v) {
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$cleaned[] = (string)$option['attr']['value'];
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break;
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}
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}
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}
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}
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if (empty($cleaned)) {
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return $this->_prepareValue(null, $assoc);
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}
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if ($this->getMultiple()) {
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return $this->_prepareValue($cleaned, $assoc);
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} else {
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return $this->_prepareValue($cleaned[0], $assoc);
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}
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}
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// }}}
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// {{{ onQuickFormEvent()
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function onQuickFormEvent($event, $arg, &$caller)
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{
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if ('updateValue' == $event) {
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$value = $this->_findValue($caller->_constantValues);
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if (null === $value) {
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$value = $this->_findValue($caller->_submitValues);
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// Fix for bug #4465 & #5269
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// XXX: should we push this to element::onQuickFormEvent()?
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if (null === $value && (!$caller->isSubmitted() || !$this->getMultiple())) {
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$value = $this->_findValue($caller->_defaultValues);
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}
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}
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if (null !== $value) {
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$this->setValue($value);
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}
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return true;
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} else {
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return parent::onQuickFormEvent($event, $arg, $caller);
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}
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}
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function setHiddenLabel($hiddenLabel){
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$this->_hiddenLabel = $hiddenLabel;
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}
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/**
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* Automatically generates and assigns an 'id' attribute for the element.
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*
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* Currently used to ensure that labels work on radio buttons and
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* checkboxes. Per idea of Alexander Radivanovich.
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* Overriden in moodleforms to remove qf_ prefix.
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*
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* @access private
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* @return void
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*/
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function _generateId()
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{
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static $idx = 1;
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if (!$this->getAttribute('id')) {
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$this->updateAttributes(array('id' => 'id_'. substr(md5(microtime() . $idx++), 0, 6)));
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}
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} // end func _generateId
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/**
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* set html for help button
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*
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* @access public
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|
* @param array $help array of arguments to make a help button
|
|
* @param string $function function name to call to get html
|
|
*/
|
|
function setHelpButton($helpbuttonargs, $function='helpbutton'){
|
|
debugging('component setHelpButton() is not used any more, please use $mform->setHelpButton() instead');
|
|
}
|
|
/**
|
|
* get html for help button
|
|
*
|
|
* @access public
|
|
* @return string html for help button
|
|
*/
|
|
function getHelpButton(){
|
|
return $this->_helpbutton;
|
|
}
|
|
|
|
/**
|
|
* Slightly different container template when frozen. Don't want to use a label tag
|
|
* with a for attribute in that case for the element label but instead use a div.
|
|
* Templates are defined in renderer constructor.
|
|
*
|
|
* @return string
|
|
*/
|
|
function getElementTemplateType(){
|
|
if ($this->_flagFrozen){
|
|
return 'static';
|
|
} else {
|
|
return 'default';
|
|
}
|
|
}
|
|
}
|