form.php

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<?php
defined('XOOPS_ROOT_PATH') or die('Restricted access');

class XoopsForm
{
    var $_action;
    
    var $_method;
    
    var $_name;
    
    var $_title;
        
    var $_summary = '';
    
    var $_elements = array();
    
    var $_extra = array();
    
    var $_required = array();
    
        
    var $_objid = 'da39a3ee5e6b4b0d3255bfef95601890afd80709';
                
    function XoopsForm($title, $name, $action, $method = 'post', $addtoken = false, $summary = '')
    {
        $this->_title = $title;
        $this->_name = $name;
        $this->_action = $action;
        $this->_method = $method;
                $this->_summary = $summary;
        if ($addtoken != false) {
            $this->addElement(new XoopsFormHiddenToken());
        }
    }
    
    function getObjectID($object, $hashinfo = 'sha1')
    {
                if (!is_object($object))
                        $object = $this;
                
                switch($hashinfo) {
                case "md5":

                        @$var['name'] = md5(get_class($object));
                        
                        foreach(get_object_vars($object) as $key => $value)
                                if ($key != '_objid')
                                        @$var['value'] = $this->getArrayID($value, $key, $var['value'], $hashinfo);
        
                        foreach(get_class_methods($object) as $key => $value)
                                @$var['func'] = $this->getArrayID($value, $key, $var['func'], $hashinfo);
                                
                        @$this->_objid = md5($var['name'].":".$var['func'].":".$var['value']);
                        return $this->_objid;
                        break;

                default:
                
                        @$var['name'] = sha1(get_class($object));
                        
                        foreach(get_object_vars($object) as $key => $value)
                                if ($key != '_objid')
                                        @$var['value'] = $this->getArrayID($value, $key, $var['value'], $hashinfo);
        
                        foreach(get_class_methods($object) as $key => $value)
                                @$var['func'] = $this->getArrayID($value, $key, $var['func'], $hashinfo);
                                
                        @$this->_objid = sha1($var['name'].":".$var['func'].":".$var['value']);
                        return $this->_objid;

                }
    }
        
        function getArrayID($value, $key, $ret, $hashinfo = 'sha1') {
                switch($hashinfo) {
                case "md5":
                        if (is_array($value)) {
                                foreach ($value as $keyb => $valueb)
                                        @$ret = md5($ret.":".$this->getArrayID($valueb, $keyb, $ret, $hashinfo));
                        } else {
                                @$ret = md5($ret.":".$key.":".$value);
                        }
                        return $ret;
                        break;
                default:
                        if (is_array($value)) {
                                foreach ($value as $keyb => $valueb)
                                        @$ret = sha1($ret.":".$this->getArrayID($valueb, $keyb, $ret, $hashinfo));
                        } else {
                                @$ret = sha1($ret.":".$key.":".$value);
                        }
                        return $ret;
                        break;
                }
        }
        
    function getSummary($encode = false)
    {
        return $encode ? htmlspecialchars($this->_summary, ENT_QUOTES) : $this->_summary;
    }
        
    function getTitle($encode = false)
    {
        return $encode ? htmlspecialchars($this->_title, ENT_QUOTES) : $this->_title;
    }
    
    function getName($encode = true)
    {
        return $encode ? htmlspecialchars($this->_name, ENT_QUOTES) : $this->_name;
    }
    
    function getAction($encode = true)
    {
        // Convert &amp; to & for backward compatibility
        return $encode ? htmlspecialchars(str_replace('&amp;', '&', $this->_action), ENT_QUOTES) : $this->_action;
    }
    
    function getMethod()
    {
        return (strtolower($this->_method) == 'get') ? 'get' : 'post';
    }
    
    function addElement(&$formElement, $required = false)
    {
        if (is_string($formElement)) {
            $this->_elements[] = $formElement;
        } elseif (is_subclass_of($formElement, 'xoopsformelement')) {
            $this->_elements[] = &$formElement;
            if (! $formElement->isContainer()) {
                if ($required) {
                    $formElement->_required = true;
                    $this->_required[] = &$formElement;
                }
            } else {
                $required_elements = &$formElement->getRequired();
                $count = count($required_elements);
                for($i = 0; $i < $count; $i ++) {
                    $this->_required[] = &$required_elements[$i];
                }
            }
        }
    }
    
    function &getElements($recurse = false)
    {
        if (! $recurse) {
            return $this->_elements;
        } else {
            $ret = array();
            $count = count($this->_elements);
            for($i = 0; $i < $count; $i ++) {
                if (is_object($this->_elements[$i])) {
                    if (! $this->_elements[$i]->isContainer()) {
                        $ret[] = &$this->_elements[$i];
                    } else {
                        $elements = &$this->_elements[$i]->getElements(true);
                        $count2 = count($elements);
                        for($j = 0; $j < $count2; $j ++) {
                            $ret[] = &$elements[$j];
                        }
                        unset($elements);
                    }
                }
            }
            return $ret;
        }
    }
    
    function getElementNames()
    {
        $ret = array();
        $elements = &$this->getElements(true);
        $count = count($elements);
        for($i = 0; $i < $count; $i ++) {
            $ret[] = $elements[$i]->getName();
        }
        return $ret;
    }
    
    function &getElementByName($name)
    {
        $elements = $this->getElements(true);
        $count = count($elements);
        for($i = 0; $i < $count; $i ++) {
            if ($name == $elements[$i]->getName(false)) {
                return $elements[$i];
            }
        }
        $elt = null;
        return $elt;
    }
    
    function setElementValue($name, $value)
    {
        $ele = &$this->getElementByName($name);
        if (is_object($ele) && method_exists($ele, 'setValue')) {
            $ele->setValue($value);
        }
    }
    
    function setElementValues($values)
    {
        if (is_array($values) && ! empty($values)) {
            // will not use getElementByName() for performance..
            $elements = &$this->getElements(true);
            $count = count($elements);
            for($i = 0; $i < $count; $i ++) {
                $name = $elements[$i]->getName(false);
                if ($name && isset($values[$name]) && method_exists($elements[$i], 'setValue')) {
                    $elements[$i]->setValue($values[$name]);
                }
            }
        }
    }
    
    function getElementValue($name, $encode = false)
    {
        $ele = &$this->getElementByName($name);
        if (is_object($ele) && method_exists($ele, 'getValue')) {
            return $ele->getValue($encode);
        }
        return;
    }
    
    function getElementValues($encode = false)
    {
        // will not use getElementByName() for performance..
        $elements = &$this->getElements(true);
        $count = count($elements);
        $values = array();
        for($i = 0; $i < $count; $i ++) {
            $name = $elements[$i]->getName(false);
            if ($name && method_exists($elements[$i], 'getValue')) {
                $values[$name] = &$elements[$i]->getValue($encode);
            }
        }
        return $values;
    }
    
    function setExtra($extra)
    {
        if (! empty($extra)) {
            $this->_extra[] = $extra;
        }
    }
        
    function setSummary($summary)
    {
        if (! empty($summary)) {
            $this->summary = strip_tags($summary);
        }
    }
    
    function &getExtra()
    {
        $extra = empty($this->_extra) ? '' : ' ' . implode(' ', $this->_extra);
        return $extra;
    }
    
    function setRequired(&$formElement)
    {
        $this->_required[] = &$formElement;
    }
    
    function &getRequired()
    {
        return $this->_required;
    }
    
    function insertBreak($extra = null)
    {
    }
    
    function render()
    {
    }
    
    function display()
    {
        echo $this->render();
    }
    
    function renderValidationJS($withtags = true)
    {
        $js = '';
        if ($withtags) {
            $js .= "\n<!-- Start Form Validation JavaScript //-->\n<script type='text/javascript'>\n<!--//\n";
        }
        $formname = $this->getName();
        $js .= "function xoopsFormValidate_{$formname}() { var myform = window.document.{$formname}; ";
        $elements = $this->getElements(true);
        foreach($elements as $elt) {
            if (method_exists($elt, 'renderValidationJS')) {
                $js .= $elt->renderValidationJS();
            }
        }
        $js .= "return true;\n}\n";
        if ($withtags) {
            $js .= "//--></script>\n<!-- End Form Validation JavaScript //-->\n";
        }
        return $js;
    }
    
    function assign(&$tpl)
    {
        $i = - 1;
        $elements = array();
        if (count($this->getRequired()) > 0) {
            $this->_elements[] = "<tr class='foot'><td colspan='2'>* = " . _REQUIRED . "</td></tr>";
        }
        foreach($this->getElements() as $ele) {
            ++ $i;
            if (is_string($ele)) {
                $elements[$i]['body'] = $ele;
                continue;
            }
            $ele_name = $ele->getName();
            $ele_description = $ele->getDescription();
            $n = $ele_name ? $ele_name : $i;
            $elements[$n]['name'] = $ele_name;
            $elements[$n]['caption'] = $ele->getCaption();
            $elements[$n]['body'] = $ele->render();
            $elements[$n]['hidden'] = $ele->isHidden();
            $elements[$n]['required'] = $ele->isRequired();
            if ($ele_description != '') {
                $elements[$n]['description'] = $ele_description;
            }
        }
        $js = $this->renderValidationJS();
        $tpl->assign($this->getName(), array(
            'title' => $this->getTitle() , 
            'name' => $this->getName() , 
            'action' => $this->getAction() , 
            'method' => $this->getMethod() , 
            'extra' => 'onsubmit="return xoopsFormValidate_' . $this->getName() . '();"' . $this->getExtra() , 
            'javascript' => $js , 
            'elements' => $elements));
    }
}

?>