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820b41e34f
Previously, we had overridden the _generateId method in almost all subclasses; and then we mostly, but not always; ignored the value that was generated there, and instead generated new (nicer) values in MoodleQuickForm_Renderer::renderElement. Of course, that is not really a logical place to (re)generate ids. I have fixed the code so that the _generateId method now uses the 'nice id' algorithm from renderElement. This should make the whole code flow more logical. This make all our overriding of _generateId unnecessary. We do need a special _generateId for radio buttons, because you often have different radio buttons with the same name but different values. This change should only change the ids on radio, checkbox and advcheckbox elements. Previously, those were essentially random, so I don't think anyone could have been relying on the particular values. This commit also has new unit tests, first to test the basic _generateId algorithm, and then to create and render an example form (including some tricky things like repeat_elements) and chech the acutal ids in the generated HTML.
99 lines
3.3 KiB
PHP
99 lines
3.3 KiB
PHP
<?php
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require_once('HTML/QuickForm/checkbox.php');
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/**
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* HTML class for a checkbox type element
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*
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* @author Jamie Pratt
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* @access public
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*/
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class MoodleQuickForm_checkbox extends HTML_QuickForm_checkbox{
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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 $_helpbutton='';
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function MoodleQuickForm_checkbox($elementName=null, $elementLabel=null, $text='', $attributes=null) {
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parent::HTML_QuickForm_checkbox($elementName, $elementLabel, $text, $attributes);
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}
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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
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* @param string $function function name to call to get html
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*/
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function setHelpButton($helpbuttonargs, $function='helpbutton'){
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debugging('component setHelpButton() is not used any more, please use $mform->setHelpButton() instead');
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}
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/**
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* get html for help button
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*
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* @access public
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* @return string html for help button
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*/
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function getHelpButton(){
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return $this->_helpbutton;
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}
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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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//fixes bug in quickforms which lets previous set value override submitted value if checkbox is not checked
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// and no value is submitted
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switch ($event) {
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case 'updateValue':
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// constant values override both default and submitted ones
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// default values are overriden by submitted
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$value = $this->_findValue($caller->_constantValues);
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if (null === $value) {
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// if no boxes were checked, then there is no value in the array
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// yet we don't want to display default value in this case
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if ($caller->isSubmitted()) {
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$value = $this->_findValue($caller->_submitValues);
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} else {
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$value = $this->_findValue($caller->_defaultValues);
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}
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}
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//fix here. setChecked should not be conditional
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$this->setChecked($value);
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break;
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default:
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parent::onQuickFormEvent($event, $arg, $caller);
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}
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return true;
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} // end func onQuickFormEvent
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function toHtml()
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{
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return '<span>' . parent::toHtml() . '</span>';
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}
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/**
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* Returns the disabled field. Accessibility: the return "[ ]" from parent
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* class is not acceptable for screenreader users, and we DO want a label.
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* @return string
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*/
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function getFrozenHtml()
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{
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//$this->_generateId();
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$output = '<input type="checkbox" disabled="disabled" id="'.$this->getAttribute('id').'" ';
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if ($this->getChecked()) {
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$output .= 'checked="checked" />'.$this->_getPersistantData();
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} else {
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$output .= '/>';
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}
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return $output;
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} //end func getFrozenHtml
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}
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