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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 |
// | license@php.net so we can mail you a copy immediately. |
// +----------------------------------------------------------------------+
// | Authors: Alexey Borzov <borz_off@cs.msu.su> |
// | Bertrand Mansion <bmansion@mamasam.com> |
// | Thomas Schulz <ths@4bconsult.de> |
// +----------------------------------------------------------------------+
//
// $Id: ArraySmarty.php,v 1.11 2006/10/07 20:12:17 avb Exp $
require_once 'HTML/QuickForm/Renderer/Array.php';
/**
* A static renderer for HTML_QuickForm, makes an array of form content
* useful for an Smarty template
*
* Based on old toArray() code and ITStatic renderer.
*
* The form array structure is the following:
* Array (
* [frozen] => whether the complete form is frozen'
* [javascript] => javascript for client-side validation
* [attributes] => attributes for <form> tag
* [hidden] => html of all hidden elements
* [requirednote] => note about the required elements
* [errors] => Array
* (
* [1st_element_name] => Error for the 1st element
* ...
* [nth_element_name] => Error for the nth element
* )
*
* [header] => Array
* (
* [1st_header_name] => Header text for the 1st header
* ...
* [nth_header_name] => Header text for the nth header
* )
*
* [1st_element_name] => Array for the 1st element
* ...
* [nth_element_name] => Array for the nth element
*
* // where an element array has the form:
* (
* [name] => element name
* [value] => element value,
* [type] => type of the element
* [frozen] => whether element is frozen
* [label] => label for the element
* [required] => whether element is required
* // if element is not a group:
* [html] => HTML for the element
* // if element is a group:
* [separator] => separator for group elements
* [1st_gitem_name] => Array for the 1st element in group
* ...
* [nth_gitem_name] => Array for the nth element in group
* )
* )
*
* @access public
*/
class HTML_QuickForm_Renderer_ArraySmarty extends HTML_QuickForm_Renderer_Array
{
/**
* The Smarty template engine instance
* @var object
*/
var $_tpl = null;
/**
* Current element index
* @var integer
*/
var $_elementIdx = 0;
/**
* The current element index inside a group
* @var integer
*/
var $_groupElementIdx = 0;
/**
* How to handle the required tag for required fields
* @var string
* @see setRequiredTemplate()
*/
var $_required = '';
/**
* How to handle error messages in form validation
* @var string
* @see setErrorTemplate()
*/
var $_error = '';
/**
* Constructor
*
* @param object reference to the Smarty template engine instance
* @param bool true: render an array of labels to many labels, $key 0 to 'label' and the oterh to "label_$key"
* @access public
*/
function HTML_QuickForm_Renderer_ArraySmarty(&$tpl, $staticLabels = false)
{
$this->HTML_QuickForm_Renderer_Array(true, $staticLabels);
$this->_tpl =& $tpl;
} // end constructor
/**
* Called when visiting a header element
*
* @param object An HTML_QuickForm_header element being visited
* @access public
* @return void
*/
function renderHeader(&$header)
{
if ($name = $header->getName()) {
$this->_ary['header'][$name] = $header->toHtml();
} else {
$this->_ary['header'][$this->_sectionCount] = $header->toHtml();
}
$this->_currentSection = $this->_sectionCount++;
} // end func renderHeader
/**
* Called when visiting a group, before processing any group elements
*
* @param object An HTML_QuickForm_group object being visited
* @param bool Whether a group is required
* @param string An error message associated with a group
* @access public
* @return void
*/
function startGroup(&$group, $required, $error)
{
parent::startGroup($group, $required, $error);
$this->_groupElementIdx = 1;
} // end func startGroup
/**
* Creates an array representing an element containing
* the key for storing this
*
* @access private
* @param object An HTML_QuickForm_element object
* @param bool Whether an element is required
* @param string Error associated with the element
* @return array
*/
function _elementToArray(&$element, $required, $error)
{
$ret = parent::_elementToArray($element, $required, $error);
if ('group' == $ret['type']) {
$ret['html'] = $element->toHtml();
// we don't need the elements, see the array structure
unset($ret['elements']);
}
if (($required || $error) && !empty($this->_required)){
$this->_renderRequired($ret['label'], $ret['html'], $required, $error);
}
if ($error && !empty($this->_error)) {
$this->_renderError($ret['label'], $ret['html'], $error);
$ret['error'] = $error;
}
// create keys for elements grouped by native group or name
if (strstr($ret['name'], '[') or $this->_currentGroup) {
// Fix for bug #8123: escape backslashes and quotes to prevent errors
// in eval(). The code below seems to handle the case where element
// name has unbalanced square brackets. Dunno whether we really
// need this after the fix for #8123, but I'm wary of making big
// changes to this code.
preg_match('/([^]]*)\\[([^]]*)\\]/', $ret['name'], $matches);
if (isset($matches[1])) {
$sKeysSub = substr_replace($ret['name'], '', 0, strlen($matches[1]));
$sKeysSub = str_replace(
array('\\', '\'', '[' , ']', '[\'\']'),
array('\\\\', '\\\'', '[\'', '\']', '[]' ),
$sKeysSub
);
$sKeys = '[\'' . str_replace(array('\\', '\''), array('\\\\', '\\\''), $matches[1]) . '\']' . $sKeysSub;
} else {
$sKeys = '[\'' . str_replace(array('\\', '\''), array('\\\\', '\\\''), $ret['name']) . '\']';
}
// special handling for elements in native groups
if ($this->_currentGroup) {
// skip unnamed group items unless radios: no name -> no static access
// identification: have the same key string as the parent group
if ($this->_currentGroup['keys'] == $sKeys and 'radio' != $ret['type']) {
return false;
}
// reduce string of keys by remove leading group keys
if (0 === strpos($sKeys, $this->_currentGroup['keys'])) {
$sKeys = substr_replace($sKeys, '', 0, strlen($this->_currentGroup['keys']));
}
}
// element without a name
} elseif ($ret['name'] == '') {
$sKeys = '[\'element_' . $this->_elementIdx . '\']';
// other elements
} else {
$sKeys = '[\'' . str_replace(array('\\', '\''), array('\\\\', '\\\''), $ret['name']) . '\']';
}
// for radios: add extra key from value
if ('radio' == $ret['type'] and substr($sKeys, -2) != '[]') {
$sKeys .= '[\'' . str_replace(array('\\', '\''), array('\\\\', '\\\''), $ret['value']) . '\']';
}
$this->_elementIdx++;
$ret['keys'] = $sKeys;
return $ret;
} // end func _elementToArray
/**
* Stores an array representation of an element in the form array
*
* @access private
* @param array Array representation of an element
* @return void
*/
function _storeArray($elAry)
{
if ($elAry) {
$sKeys = $elAry['keys'];
unset($elAry['keys']);
// where should we put this element...
if (is_array($this->_currentGroup) && ('group' != $elAry['type'])) {
$toEval = '$this->_currentGroup' . $sKeys . ' = $elAry;';
} else {
$toEval = '$this->_ary' . $sKeys . ' = $elAry;';
}
eval($toEval);
}
return;
}
/**
* Called when an element is required
*
* This method will add the required tag to the element label and/or the element html
* such as defined with the method setRequiredTemplate.
*
* @param string The element label
* @param string The element html rendering
* @param boolean The element required
* @param string The element error
* @see setRequiredTemplate()
* @access private
* @return void
*/
function _renderRequired(&$label, &$html, &$required, &$error)
{
$this->_tpl->assign(array(
'label' => $label,
'html' => $html,
'required' => $required,
'error' => $error
));
if (!empty($label) && strpos($this->_required, $this->_tpl->left_delimiter . '$label') !== false) {
$label = $this->_tplFetch($this->_required);
}
if (!empty($html) && strpos($this->_required, $this->_tpl->left_delimiter . '$html') !== false) {
$html = $this->_tplFetch($this->_required);
}
$this->_tpl->clear_assign(array('label', 'html', 'required'));
} // end func _renderRequired
/**
* Called when an element has a validation error
*
* This method will add the error message to the element label or the element html
* such as defined with the method setErrorTemplate. If the error placeholder is not found
* in the template, the error will be displayed in the form error block.
*
* @param string The element label
* @param string The element html rendering
* @param string The element error
* @see setErrorTemplate()
* @access private
* @return void
*/
function _renderError(&$label, &$html, &$error)
{
$this->_tpl->assign(array('label' => '', 'html' => '', 'error' => $error));
$error = $this->_tplFetch($this->_error);
$this->_tpl->assign(array('label' => $label, 'html' => $html));
if (!empty($label) && strpos($this->_error, $this->_tpl->left_delimiter . '$label') !== false) {
$label = $this->_tplFetch($this->_error);
} elseif (!empty($html) && strpos($this->_error, $this->_tpl->left_delimiter . '$html') !== false) {
$html = $this->_tplFetch($this->_error);
}
$this->_tpl->clear_assign(array('label', 'html', 'error'));
} // end func _renderError
/**
* Process an template sourced in a string with Smarty
*
* Smarty has no core function to render a template given as a string.
* So we use the smarty eval plugin function to do this.
*
* @param string The template source
* @access private
* @return void
*/
function _tplFetch($tplSource)
{
if (!function_exists('smarty_function_eval')) {
require SMARTY_DIR . '/plugins/function.eval.php';
}
return smarty_function_eval(array('var' => $tplSource), $this->_tpl);
}// end func _tplFetch
/**
* Sets the way required elements are rendered
*
* You can use {$label} or {$html} placeholders to let the renderer know where
* where the element label or the element html are positionned according to the
* required tag. They will be replaced accordingly with the right value. You
* can use the full smarty syntax here, especially a custom modifier for I18N.
* For example:
* {if $required}<span style="color: red;">*</span>{/if}{$label|translate}
* will put a red star in front of the label if the element is required and
* translate the label.
*
*
* @param string The required element template
* @access public
* @return void
*/
function setRequiredTemplate($template)
{
$this->_required = $template;
} // end func setRequiredTemplate
/**
* Sets the way elements with validation errors are rendered
*
* You can use {$label} or {$html} placeholders to let the renderer know where
* where the element label or the element html are positionned according to the
* error message. They will be replaced accordingly with the right value.
* The error message will replace the {$error} placeholder.
* For example:
* {if $error}<span style="color: red;">{$error}</span>{/if}<br />{$html}
* will put the error message in red on top of the element html.
*
* If you want all error messages to be output in the main error block, use
* the {$form.errors} part of the rendered array that collects all raw error
* messages.
*
* If you want to place all error messages manually, do not specify {$html}
* nor {$label}.
*
* Groups can have special layouts. With this kind of groups, you have to
* place the formated error message manually. In this case, use {$form.group.error}
* where you want the formated error message to appear in the form.
*
* @param string The element error template
* @access public
* @return void
*/
function setErrorTemplate($template)
{
$this->_error = $template;
} // end func setErrorTemplate
}
?>
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