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568 lines
18 KiB
568 lines
18 KiB
2 years ago
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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* select type form element
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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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* @package core_form
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* @copyright 2007 Jamie Pratt <me@jamiep.org>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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require_once('HTML/QuickForm/element.php');
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require_once('templatable_form_element.php');
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/**
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* select type form element
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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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* @package core_form
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* @category form
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* @copyright 2007 Jamie Pratt <me@jamiep.org>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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class MoodleQuickForm_selectgroups extends HTML_QuickForm_element implements templatable {
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use templatable_form_element {
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export_for_template as export_for_template_base;
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}
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/** @var bool add choose option */
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var $showchoose = false;
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/** @var array Contains the select optgroups */
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var $_optGroups = array();
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/** @var string Default values of the SELECT */
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var $_values = null;
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/** @var string html for help button, if empty then no help */
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var $_helpbutton='';
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/** @var bool if true label will be hidden */
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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 $elementName Select name attribute
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* @param mixed $elementLabel Label(s) for the select
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* @param array $optgrps Data to be used to populate options
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* @param mixed $attributes Either a typical HTML attribute string or an associative array
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* @param bool $showchoose add standard moodle "Choose..." option as first item
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*/
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public function __construct($elementName=null, $elementLabel=null, $optgrps=null, $attributes=null, $showchoose=false)
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{
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$this->showchoose = $showchoose;
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parent::__construct($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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}
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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 MoodleQuickForm_selectgroups($elementName=null, $elementLabel=null, $optgrps=null, $attributes=null, $showchoose=false) {
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debugging('Use of class name as constructor is deprecated', DEBUG_DEVELOPER);
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self::__construct($elementName, $elementLabel, $optgrps, $attributes, $showchoose);
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}
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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 $values Array or comma delimited string of selected values
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*/
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function setSelected($values)
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{
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if (is_string($values) && $this->getMultiple()) {
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$values = preg_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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}
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/**
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* Returns an array of the selected values
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*
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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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}
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/**
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* Sets the input field name
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*
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* @param string $name Input field name attribute
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*/
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function setName($name)
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{
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$this->updateAttributes(array('name' => $name));
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}
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/**
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* Returns the element name
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*
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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 $this->getAttribute('name');
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}
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/**
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* Returns the element name (possibly with brackets appended)
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*
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* @return string
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*/
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function getPrivateName()
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{
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if ($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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}
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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 $value Array or comma delimited string of selected values
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*/
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function setValue($value)
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{
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$this->setSelected($value);
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}
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/**
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* Returns an array of the selected values
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*
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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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}
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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 $size Size of select field
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*/
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function setSize($size)
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{
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$this->updateAttributes(array('size' => $size));
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}
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/**
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* Returns the select field size
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*
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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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}
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/**
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* Sets the select mutiple attribute
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*
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* @param bool $multiple Whether the select supports multi-selections
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*/
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function setMultiple($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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$this->removeAttribute('multiple');
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}
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}
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/**
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* Returns the select mutiple attribute
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*
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* @return bool true if multiple select, false otherwise
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*/
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function getMultiple()
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{
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return (bool)$this->getAttribute('multiple');
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}
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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 $values (optional) Array or comma delimited string of selected values
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* @return PEAR_Error|bool on error or true
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* @throws PEAR_Error
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*/
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function loadArrayOptGroups($arr, $values=null)
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{
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if (!is_array($arr)) {
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return self::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 $attributes Either a typical HTML attribute string
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* or an associative array
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*/
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function addOptGroup($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 string $optgroup name of the options group
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* @param array $arr Associative array of options
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* @param mixed $values (optional) Array or comma delimited string of selected values
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* @return PEAR_Error|bool on error or true
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* @throws PEAR_Error
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*/
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function loadArrayOptions($optgroup, $arr, $values=null)
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{
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if (!is_array($arr)) {
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return self::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 $optgroup name of the option group
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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 $attributes Either a typical HTML attribute string
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* or an associative array
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*/
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function addOption($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' => $attributes);
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}
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/**
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* Returns the SELECT in HTML
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*
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* @return string
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*/
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function toHtml()
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{
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if ($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 . $tabs . '</select>';
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}
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}
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/**
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* Returns the value of field without HTML tags
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*
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* @return string
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*/
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function getFrozenHtml()
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{
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$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 $optGroup) {
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if (empty($optGroup['options'])) {
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continue;
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}
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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)) {
|
||
|
|
$id = $this->getAttribute('id');
|
||
|
|
$idAttr = isset($id)? array('id' => $id): array();
|
||
|
|
} else {
|
||
|
|
$idAttr = array();
|
||
|
|
}
|
||
|
|
foreach ($value as $key => $item) {
|
||
|
|
$html .= '<input' . $this->_getAttrString(array(
|
||
|
|
'type' => 'hidden',
|
||
|
|
'name' => $name,
|
||
|
|
'value' => $this->_values[$key]
|
||
|
|
) + $idAttr) . ' />';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return $html;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* We check the options and return only the values that _could_ have been
|
||
|
|
* selected. We also return a scalar value if select is not "multiple"
|
||
|
|
*
|
||
|
|
* @param array $submitValues submitted values
|
||
|
|
* @param bool $assoc if true the retured value is associated array
|
||
|
|
* @return mixed
|
||
|
|
*/
|
||
|
|
function exportValue(&$submitValues, $assoc = false)
|
||
|
|
{
|
||
|
|
if (empty($this->_optGroups)) {
|
||
|
|
return $this->_prepareValue(null, $assoc);
|
||
|
|
}
|
||
|
|
|
||
|
|
$value = $this->_findValue($submitValues);
|
||
|
|
if (is_null($value)) {
|
||
|
|
$value = $this->getValue();
|
||
|
|
}
|
||
|
|
$value = (array)$value;
|
||
|
|
|
||
|
|
$cleaned = array();
|
||
|
|
foreach ($value as $v) {
|
||
|
|
foreach ($this->_optGroups as $optGroup){
|
||
|
|
if (empty($optGroup['options'])) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
foreach ($optGroup['options'] as $option) {
|
||
|
|
if ((string)$option['attr']['value'] === (string)$v) {
|
||
|
|
$cleaned[] = (string)$option['attr']['value'];
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (empty($cleaned)) {
|
||
|
|
return $this->_prepareValue(null, $assoc);
|
||
|
|
}
|
||
|
|
if ($this->getMultiple()) {
|
||
|
|
return $this->_prepareValue($cleaned, $assoc);
|
||
|
|
} else {
|
||
|
|
return $this->_prepareValue($cleaned[0], $assoc);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Called by HTML_QuickForm whenever form event is made on this element
|
||
|
|
*
|
||
|
|
* @param string $event Name of event
|
||
|
|
* @param mixed $arg event arguments
|
||
|
|
* @param object $caller calling object
|
||
|
|
* @return bool
|
||
|
|
*/
|
||
|
|
function onQuickFormEvent($event, $arg, &$caller)
|
||
|
|
{
|
||
|
|
if ('updateValue' == $event) {
|
||
|
|
$value = $this->_findValue($caller->_constantValues);
|
||
|
|
if (null === $value) {
|
||
|
|
$value = $this->_findValue($caller->_submitValues);
|
||
|
|
// Fix for bug #4465 & #5269
|
||
|
|
// XXX: should we push this to element::onQuickFormEvent()?
|
||
|
|
if (null === $value && (!$caller->isSubmitted() || !$this->getMultiple())) {
|
||
|
|
$value = $this->_findValue($caller->_defaultValues);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (null !== $value) {
|
||
|
|
$this->setValue($value);
|
||
|
|
}
|
||
|
|
return true;
|
||
|
|
} else {
|
||
|
|
return parent::onQuickFormEvent($event, $arg, $caller);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Sets label to be hidden
|
||
|
|
*
|
||
|
|
* @param bool $hiddenLabel sets if label should be hidden
|
||
|
|
*/
|
||
|
|
function setHiddenLabel($hiddenLabel){
|
||
|
|
$this->_hiddenLabel = $hiddenLabel;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* get html for help button
|
||
|
|
*
|
||
|
|
* @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';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
public function export_for_template(renderer_base $output) {
|
||
|
|
$context = $this->export_for_template_base($output);
|
||
|
|
$optiongroups = [];
|
||
|
|
if ($this->showchoose) {
|
||
|
|
$optionsgroups[] = [
|
||
|
|
'text' => get_string('choosedots')
|
||
|
|
];
|
||
|
|
}
|
||
|
|
|
||
|
|
// Standard option attributes.
|
||
|
|
$standardoptionattributes = ['text', 'value', 'selected', 'disabled'];
|
||
|
|
foreach ($this->_optGroups as $group) {
|
||
|
|
$options = [];
|
||
|
|
|
||
|
|
if (empty($group['options'])) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
foreach ($group['options'] as $option) {
|
||
|
|
$o = ['value' => (string)$option['attr']['value']];
|
||
|
|
if (is_array($this->_values) && in_array($o['value'], $this->_values)) {
|
||
|
|
$o['selected'] = true;
|
||
|
|
} else {
|
||
|
|
$o['selected'] = false;
|
||
|
|
}
|
||
|
|
$o['text'] = $option['text'];
|
||
|
|
$o['disabled'] = !empty($option['attr']['disabled']);
|
||
|
|
// Set other attributes.
|
||
|
|
$otheroptionattributes = [];
|
||
|
|
foreach ($option['attr'] as $attr => $value) {
|
||
|
|
if (!in_array($attr, $standardoptionattributes) && $attr != 'class' && !is_object($value)) {
|
||
|
|
$otheroptionattributes[] = $attr . '="' . s($value) . '"';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
$o['optionattributes'] = implode(' ', $otheroptionattributes);
|
||
|
|
$options[] = $o;
|
||
|
|
}
|
||
|
|
|
||
|
|
$og = [
|
||
|
|
'text' => $group['attr']['label'],
|
||
|
|
'options' => $options
|
||
|
|
];
|
||
|
|
|
||
|
|
$optiongroups[] = $og;
|
||
|
|
}
|
||
|
|
$context['optiongroups'] = $optiongroups;
|
||
|
|
|
||
|
|
return $context;
|
||
|
|
}
|
||
|
|
}
|