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<?php
/* vim: set expandtab tabstop=4 shiftwidth=4: */
// +----------------------------------------------------------------------+
// | PHP version 4.0 |
// +----------------------------------------------------------------------+
// | Copyright (c) 1997-2003 The PHP Group |
// +----------------------------------------------------------------------+
// | This source file is subject to version 2.0 of the PHP license, |
// | that is bundled with this package in the file LICENSE, and is |
// | available at through the world-wide-web at |
// | http://www.php.net/license/2_02.txt. |
// | If you did not receive a copy of the PHP license and are unable to |
// | obtain it through the world-wide-web, please send a note to |
// | [email protected] so we can mail you a copy immediately. |
// +----------------------------------------------------------------------+
// | Authors: Adam Daniel <[email protected]> |
// | Alexey Borzov <[email protected]> |
// | Bertrand Mansion <[email protected]> |
// +----------------------------------------------------------------------+
//
// $Id: RuleRegistry.php,v 1.12 2004/02/28 15:47:22 avb Exp $
/**
* Registers rule objects and uses them for validation
*
*/
class HTML_QuickForm_RuleRegistry
{
/**
* Array containing references to used rules
* @var array
* @access private
*/
var $_rules = array();
/**
* Returns a singleton of HTML_QuickForm_RuleRegistry
*
* Usually, only one RuleRegistry object is needed, this is the reason
* why it is recommended to use this method to get the validation object.
*
* @access public
* @static
* @return object Reference to the HTML_QuickForm_RuleRegistry singleton
*/
function &singleton()
{
static $obj;
if (!isset($obj)) {
$obj = new HTML_QuickForm_RuleRegistry();
}
return $obj;
} // end func singleton
/**
* Registers a new validation rule
*
* In order to use a custom rule in your form, you need to register it
* first. For regular expressions, one can directly use the 'regex' type
* rule in addRule(), this is faster than registering the rule.
*
* Functions and methods can be registered. Use the 'function' type.
* When registering a method, specify the class name as second parameter.
*
* You can also register an HTML_QuickForm_Rule subclass with its own
* validate() method.
*
* @param string $ruleName Name of validation rule
* @param string $type Either: 'regex', 'function' or null
* @param string $data1 Name of function, regular expression or
* HTML_QuickForm_Rule object class name
* @param string $data2 Object parent of above function or HTML_QuickForm_Rule file path
* @access public
* @return void
*/
function registerRule($ruleName, $type, $data1, $data2 = null)
{
$type = strtolower($type);
if ($type == 'regex') {
// Regular expression
$rule =& $this->getRule('regex');
$rule->addData($ruleName, $data1);
$GLOBALS['_HTML_QuickForm_registered_rules'][$ruleName] = $GLOBALS['_HTML_QuickForm_registered_rules']['regex'];
} elseif ($type == 'function' || $type == 'callback') {
// Callback function
$rule =& $this->getRule('callback');
$rule->addData($ruleName, $data1, $data2, 'function' == $type);
$GLOBALS['_HTML_QuickForm_registered_rules'][$ruleName] = $GLOBALS['_HTML_QuickForm_registered_rules']['callback'];
} elseif (is_object($data1)) {
// An instance of HTML_QuickForm_Rule
$this->_rules[strtolower(get_class($data1))] = $data1;
$GLOBALS['_HTML_QuickForm_registered_rules'][$ruleName] = array(strtolower(get_class($data1)), null);
} else {
// Rule class name
$GLOBALS['_HTML_QuickForm_registered_rules'][$ruleName] = array(strtolower($data1), $data2);
}
} // end func registerRule
/**
* Returns a reference to the requested rule object
*
* @param string $ruleName Name of the requested rule
* @access public
* @return object
*/
function &getRule($ruleName)
{
list($class, $path) = $GLOBALS['_HTML_QuickForm_registered_rules'][$ruleName];
if (!isset($this->_rules[$class])) {
if (!empty($path)) {
include_once($path);
}
$this->_rules[$class] =& new $class();
}
$this->_rules[$class]->setName($ruleName);
return $this->_rules[$class];
} // end func getRule
/**
* Performs validation on the given values
*
* @param string $ruleName Name of the rule to be used
* @param mixed $values Can be a scalar or an array of values
* to be validated
* @param mixed $options Options used by the rule
* @param mixed $multiple Whether to validate an array of values altogether
* @access public
* @return mixed true if no error found, int of valid values (when an array of values is given) or false if error
*/
function validate($ruleName, $values, $options = null, $multiple = false)
{
$rule =& $this->getRule($ruleName);
if (is_array($values) && !$multiple) {
$result = 0;
foreach ($values as $value) {
if ($rule->validate($value, $options) === true) {
$result++;
}
}
return ($result == 0) ? false : $result;
} else {
return $rule->validate($values, $options);
}
} // end func validate
/**
* Returns the validation test in javascript code
*
* @param mixed Element(s) the rule applies to
* @param string Element name, in case $element is not array
* @param array Rule data
* @access public
* @return string JavaScript for the rule
*/
function getValidationScript(&$element, $elementName, $ruleData)
{
$reset = (isset($ruleData['reset'])) ? $ruleData['reset'] : false;
$rule =& $this->getRule($ruleData['type']);
if (!is_array($element)) {
list($jsValue, $jsReset) = $this->_getJsValue($element, $elementName, $reset, null);
} else {
$jsValue = " value = new Array();\n";
$jsReset = '';
for ($i = 0; $i < count($element); $i++) {
list($tmp_value, $tmp_reset) = $this->_getJsValue($element[$i], $element[$i]->getName(), $reset, $i);
$jsValue .= "\n" . $tmp_value;
$jsReset .= $tmp_reset;
}
}
$jsField = isset($ruleData['group'])? $ruleData['group']: $elementName;
list ($jsPrefix, $jsCheck) = $rule->getValidationScript($ruleData['format']);
if (!isset($ruleData['howmany'])) {
$js = $jsValue . "\n" . $jsPrefix .
" if (" . str_replace('{jsVar}', 'value', $jsCheck) . " && !errFlag['{$jsField}']) {\n" .
" errFlag['{$jsField}'] = true;\n" .
" _qfMsg = _qfMsg + '\\n - {$ruleData['message']}';\n" .
$jsReset .
" }\n";
} else {
$js = $jsValue . "\n" . $jsPrefix .
" var res = 0;\n" .
" for (var i = 0; i < value.length; i++) {\n" .
" if (!(" . str_replace('{jsVar}', 'value[i]', $jsCheck) . ")) {\n" .
" res++;\n" .
" }\n" .
" }\n" .
" if (res < {$ruleData['howmany']} && !errFlag['{$jsField}']) {\n" .
" errFlag['{$jsField}'] = true;\n" .
" _qfMsg = _qfMsg + '\\n - {$ruleData['message']}';\n" .
$jsReset .
" }\n";
}
return $js;
} // end func getValidationScript
/**
* Returns JavaScript to get and to reset the element's value
*
* @access private
* @param object HTML_QuickForm_element element being processed
* @param string element's name
* @param bool whether to generate JavaScript to reset the value
* @param integer value's index in the array (only used for multielement rules)
* @return array first item is value javascript, second is reset
*/
function _getJsValue(&$element, $elementName, $reset = false, $index = null)
{
$jsIndex = isset($index)? '[' . $index . ']': '';
$tmp_reset = $reset? " var field = frm.elements['$elementName'];\n": '';
if (is_a($element, 'html_quickform_group')) {
$value = " var {$elementName}Elements = '::";
for ($i = 0, $count = count($element->_elements); $i < $count; $i++) {
$value .= $element->getElementName($i) . '::';
}
$value .=
"';\n" .
" value{$jsIndex} = new Array();\n" .
" var valueIdx = 0;\n" .
" for (var i = 0; i < frm.elements.length; i++) {\n" .
" var _element = frm.elements[i];\n" .
" if ({$elementName}Elements.indexOf('::' + _element.name + '::') >= 0) {\n" .
" switch (_element.type) {\n" .
" case 'checkbox':\n" .
" case 'radio':\n" .
" if (_element.checked) {\n" .
" value{$jsIndex}[valueIdx++] = _element.value;\n" .
" }\n" .
" break;\n" .
" case 'select':\n" .
" if (-1 != _element.selectedIndex) {\n" .
" value{$jsIndex}[valueIdx++] = _element.options[_element.selectedIndex].value;\n" .
" }\n" .
" break;\n" .
" default:\n" .
" value{$jsIndex}[valueIdx++] = _element.value;\n" .
" }\n" .
" }\n" .
" }\n";
if ($reset) {
$tmp_reset =
" for (var i = 0; i < frm.elements.length; i++) {\n" .
" var _element = frm.elements[i];\n" .
" if ({$elementName}Elements.indexOf('::' + _element.name + '::') >= 0) {\n" .
" switch (_element.type) {\n" .
" case 'checkbox':\n" .
" case 'radio':\n" .
" _element.checked = _element.defaultChecked;\n" .
" break;\n" .
" case 'select':\n" .
" for (var j = 0; j < _element.options.length; j++) {\n" .
" _element.options[j].selected = _element.options[j].defaultSelected;\n" .
" }\n" .
" break;\n" .
" default:\n" .
" _element.value = _element.defaultValue;\n" .
" }\n" .
" }\n" .
" }\n";
}
} elseif ($element->getType() == 'select') {
if ($element->getMultiple()) {
$elementName .= '[]';
$value =
" value{$jsIndex} = new Array();\n" .
" var valueIdx = 0;\n" .
" for (var i = 0; i < frm.elements['{$elementName}'].options.length; i++) {\n" .
" if (frm.elements['{$elementName}'].options[i].selected) {\n" .
" value{$jsIndex}[valueIdx++] = frm.elements['{$elementName}'].options[i].value;\n" .
" }\n" .
" }\n";
} else {
$value = " value{$jsIndex} = frm.elements['{$elementName}'].options[frm.elements['{$elementName}'].selectedIndex].value;\n";
}
if ($reset) {
$tmp_reset .=
" for (var i = 0; i < field.options.length; i++) {\n" .
" field.options[i].selected = field.options[i].defaultSelected;\n" .
" }\n";
}
} elseif ($element->getType() == 'checkbox') {
$value = " if (frm.elements['$elementName'].checked) {\n" .
" value{$jsIndex} = '1';\n" .
" } else {\n" .
" value{$jsIndex} = '';\n" .
" }";
$tmp_reset .= ($reset) ? " field.checked = field.defaultChecked;\n" : '';
} elseif ($element->getType() == 'radio') {
$value = " value{$jsIndex} = '';\n" .
" for (var i = 0; i < frm.elements['$elementName'].length; i++) {\n" .
" if (frm.elements['$elementName'][i].checked) {\n" .
" value{$jsIndex} = frm.elements['$elementName'][i].value;\n" .
" }\n" .
" }";
if ($reset) {
$tmp_reset .= " for (var i = 0; i < field.length; i++) {\n" .
" field[i].checked = field[i].defaultChecked;\n" .
" }";
}
} else {
$value = " value{$jsIndex} = frm.elements['$elementName'].value;";
$tmp_reset .= ($reset) ? " field.value = field.defaultValue;\n" : '';
}
return array($value, $tmp_reset);
}
} // end class HTML_QuickForm_RuleRegistry
?>
|
