This is a first cut of a new formslib.php a library of classes for creating and securely processing forms in Moodle, based on PEAR QuickForms. Only uses XHTML and CSS and no table tags.
This is NOT YET PART OF THE MOODLE API it is here for experimental purposes.
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jamiesensei
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<?php
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/**
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* DHTML replacement for the standard JavaScript alert window for client-side
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* validation
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*
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* PHP versions 4 and 5
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*
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* LICENSE: This source file is subject to version 3.01 of the PHP license
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* that is available through the world-wide-web at the following URI:
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* http://www.php.net/license/3_01.txt. If you did not receive a copy of
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* the PHP License and are unable to obtain it through the web, please
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* send a note to [email protected] so we can mail you a copy immediately.
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*
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* @category HTML
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* @package HTML_QuickForm_DHTMLRulesTableless
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* @author Alexey Borzov <[email protected]>
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* @author Adam Daniel <[email protected]>
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* @author Bertrand Mansion <[email protected]>
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* @author Justin Patrin <[email protected]>
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* @author Mark Wiesemann <[email protected]>
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* @copyright 2005-2006 The PHP Group
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* @license http://www.php.net/license/3_01.txt PHP License 3.01
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* @version CVS: $Id$
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* @link http://pear.php.net/package/HTML_QuickForm_DHTMLRulesTableless
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*/
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require_once 'HTML/QuickForm.php';
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/**
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* This is a DHTML replacement for the standard JavaScript alert window for
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* client-side validation of forms built with HTML_QuickForm
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*
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* @category HTML
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* @package HTML_QuickForm_DHTMLRulesTableless
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* @author Alexey Borzov <[email protected]>
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* @author Adam Daniel <[email protected]>
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* @author Bertrand Mansion <[email protected]>
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* @author Justin Patrin <[email protected]>
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* @author Mark Wiesemann <[email protected]>
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* @license http://www.php.net/license/3_01.txt PHP License 3.01
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* @version Release: 0.1.2
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* @link http://pear.php.net/package/HTML_QuickForm_DHTMLRulesTableless
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*/
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class HTML_QuickForm_DHTMLRulesTableless extends HTML_QuickForm {
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// {{{ getValidationScript()
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/**
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* Returns the client side validation script
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*
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* The code here was copied from HTML_QuickForm and slightly modified to run rules per-element
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*
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* @access public
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* @return string Javascript to perform validation, empty string if no 'client' rules were added
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*/
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function getValidationScript()
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{
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if (empty($this->_rules) || empty($this->_attributes['onsubmit'])) {
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return '';
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}
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include_once('HTML/QuickForm/RuleRegistry.php');
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$registry =& HTML_QuickForm_RuleRegistry::singleton();
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$test = array();
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$js_escape = array(
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"\r" => '\r',
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"\n" => '\n',
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"\t" => '\t',
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"'" => "\\'",
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'"' => '\"',
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'\\' => '\\\\'
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);
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foreach ($this->_rules as $elementName => $rules) {
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foreach ($rules as $rule) {
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if ('client' == $rule['validation']) {
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unset($element);
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$dependent = isset($rule['dependent']) && is_array($rule['dependent']);
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$rule['message'] = strtr($rule['message'], $js_escape);
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if (isset($rule['group'])) {
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$group =& $this->getElement($rule['group']);
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// No JavaScript validation for frozen elements
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if ($group->isFrozen()) {
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continue 2;
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}
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$elements =& $group->getElements();
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foreach (array_keys($elements) as $key) {
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if ($elementName == $group->getElementName($key)) {
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$element =& $elements[$key];
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break;
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}
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}
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} elseif ($dependent) {
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$element = array();
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$element[] =& $this->getElement($elementName);
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foreach ($rule['dependent'] as $idx => $elName) {
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$element[] =& $this->getElement($elName);
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}
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} else {
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$element =& $this->getElement($elementName);
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}
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// No JavaScript validation for frozen elements
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if (is_object($element) && $element->isFrozen()) {
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continue 2;
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} elseif (is_array($element)) {
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foreach (array_keys($element) as $key) {
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if ($element[$key]->isFrozen()) {
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continue 3;
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}
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}
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}
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$test[$elementName][] = $registry->getValidationScript($element, $elementName, $rule);
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}
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}
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}
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$js = '
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<script type="text/javascript">
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//<![CDATA[
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function qf_errorHandler(element, _qfMsg) {
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div = element.parentNode;
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if (_qfMsg != \'\') {
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span = document.createElement("span");
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span.className = "error";
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span.appendChild(document.createTextNode(_qfMsg.substring(3)));
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br = document.createElement("br");
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var errorDiv = document.getElementById(element.name + \'_errorDiv\');
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if (!errorDiv) {
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errorDiv = document.createElement("div");
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errorDiv.id = element.name + \'_errorDiv\';
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}
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while (errorDiv.firstChild) {
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errorDiv.removeChild(errorDiv.firstChild);
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}
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errorDiv.insertBefore(br, errorDiv.firstChild);
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errorDiv.insertBefore(span, errorDiv.firstChild);
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element.parentNode.insertBefore(errorDiv, element.parentNode.firstChild);
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if (div.className.substr(div.className.length - 6, 6) != " error"
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&& div.className != "error") {
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div.className += " error";
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}
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return false;
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} else {
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var errorDiv = document.getElementById(element.name + \'_errorDiv\');
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if (errorDiv) {
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errorDiv.parentNode.removeChild(errorDiv);
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}
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if (div.className.substr(div.className.length - 6, 6) == " error") {
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div.className = div.className.substr(0, div.className.length - 6);
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} else if (div.className == "error") {
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div.className = "";
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}
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return true;
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}
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}';
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$validateJS = '';
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foreach ($test as $elementName => $jsArr) {
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$js .= '
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function validate_' . $this->_attributes['id'] . '_' . $elementName . '(element) {
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var value = \'\';
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var errFlag = new Array();
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var _qfGroups = {};
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var _qfMsg = \'\';
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var frm = element.parentNode;
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while (frm && frm.nodeName != "FORM") {
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frm = frm.parentNode;
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}
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' . join("\n", $jsArr) . '
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return qf_errorHandler(element, _qfMsg);
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}
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';
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$validateJS .= '
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ret = validate_' . $this->_attributes['id'] . '_' . $elementName.'(frm.elements[\''.$elementName.'\']) && ret;';
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unset($element);
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$element =& $this->getElement($elementName);
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$valFunc = 'validate_' . $this->_attributes['id'] . '_' . $elementName . '(this)';
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$onBlur = $element->getAttribute('onBlur');
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$onChange = $element->getAttribute('onChange');
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$element->updateAttributes(array('onBlur' => $onBlur . $valFunc,
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'onChange' => $onChange . $valFunc));
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}
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$js .= '
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function validate_' . $this->_attributes['id'] . '(frm) {
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var ret = true;
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' . $validateJS . ';
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return ret;
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}
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//]]>
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</script>';
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return $js;
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} // end func getValidationScript
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// }}}
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function display() {
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$this->getValidationScript();
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return parent::display();
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}
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}
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?>
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