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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. |
// +----------------------------------------------------------------------+
// | Author: Alexey Borzov <borz_off@cs.msu.su> |
// +----------------------------------------------------------------------+
//
// $Id: ITDynamic.php,v 1.5 2004/10/15 13:04:36 avb Exp $
require_once 'HTML/QuickForm/Renderer.php';
/**
* A concrete renderer for HTML_QuickForm, using Integrated Templates.
*
* This is a "dynamic" renderer, which means that concrete form look
* is defined at runtime. This also means that you can define
* <b>one</b> template file for <b>all</b> your forms. That template
* should contain a block for every element 'look' appearing in your
* forms and also some special blocks (consult the examples). If a
* special block is not set for an element, the renderer falls back to
* a default one.
*
* @author Alexey Borzov <borz_off@cs.msu.su>
* @access public
*/
class HTML_QuickForm_Renderer_ITDynamic extends HTML_QuickForm_Renderer
{
/**
* A template class (HTML_Template_ITX or HTML_Template_Sigma) instance
* @var object
*/
var $_tpl = null;
/**
* The errors that were not shown near concrete fields go here
* @var array
*/
var $_errors = array();
/**
* Show the block with required note?
* @var bool
*/
var $_showRequired = false;
/**
* A separator for group elements
* @var mixed
*/
var $_groupSeparator = null;
/**
* The current element index inside a group
* @var integer
*/
var $_groupElementIdx = 0;
/**
* Blocks to use for different elements
* @var array
*/
var $_elementBlocks = array();
/**
* Block to use for headers
* @var string
*/
var $_headerBlock = null;
/**
* Constructor
*
* @param object An HTML_Template_ITX/HTML_Template_Sigma object to use
*/
function HTML_QuickForm_Renderer_ITDynamic(&$tpl)
{
$this->HTML_QuickForm_Renderer();
$this->_tpl =& $tpl;
$this->_tpl->setCurrentBlock('qf_main_loop');
}
function finishForm(&$form)
{
// display errors above form
if (!empty($this->_errors) && $this->_tpl->blockExists('qf_error_loop')) {
foreach ($this->_errors as $error) {
$this->_tpl->setVariable('qf_error', $error);
$this->_tpl->parse('qf_error_loop');
}
}
// show required note
if ($this->_showRequired) {
$this->_tpl->setVariable('qf_required_note', $form->getRequiredNote());
}
// assign form attributes
$this->_tpl->setVariable('qf_attributes', $form->getAttributes(true));
// assign javascript validation rules
$this->_tpl->setVariable('qf_javascript', $form->getValidationScript());
}
function renderHeader(&$header)
{
$blockName = $this->_matchBlock($header);
if ('qf_header' == $blockName && isset($this->_headerBlock)) {
$blockName = $this->_headerBlock;
}
$this->_tpl->setVariable('qf_header', $header->toHtml());
$this->_tpl->parse($blockName);
$this->_tpl->parse('qf_main_loop');
}
function renderElement(&$element, $required, $error)
{
$blockName = $this->_matchBlock($element);
// are we inside a group?
if ('qf_main_loop' != $this->_tpl->currentBlock) {
if (0 != $this->_groupElementIdx && $this->_tpl->placeholderExists('qf_separator', $blockName)) {
if (is_array($this->_groupSeparator)) {
$this->_tpl->setVariable('qf_separator', $this->_groupSeparator[($this->_groupElementIdx - 1) % count($this->_groupSeparator)]);
} else {
$this->_tpl->setVariable('qf_separator', (string)$this->_groupSeparator);
}
}
$this->_groupElementIdx++;
} elseif(!empty($error)) {
// show the error message or keep it for later use
if ($this->_tpl->blockExists($blockName . '_error')) {
$this->_tpl->setVariable('qf_error', $error);
} else {
$this->_errors[] = $error;
}
}
// show an '*' near the required element
if ($required) {
$this->_showRequired = true;
if ($this->_tpl->blockExists($blockName . '_required')) {
$this->_tpl->touchBlock($blockName . '_required');
}
}
// Prepare multiple labels
$labels = $element->getLabel();
if (is_array($labels)) {
$mainLabel = array_shift($labels);
} else {
$mainLabel = $labels;
}
// render the element itself with its main label
$this->_tpl->setVariable('qf_element', $element->toHtml());
if ($this->_tpl->placeholderExists('qf_label', $blockName)) {
$this->_tpl->setVariable('qf_label', $mainLabel);
}
// render extra labels, if any
if (is_array($labels)) {
foreach($labels as $key => $label) {
$key = is_int($key)? $key + 2: $key;
if ($this->_tpl->blockExists($blockName . '_label_' . $key)) {
$this->_tpl->setVariable('qf_label_' . $key, $label);
}
}
}
$this->_tpl->parse($blockName);
$this->_tpl->parseCurrentBlock();
}
function renderHidden(&$element)
{
$this->_tpl->setVariable('qf_hidden', $element->toHtml());
$this->_tpl->parse('qf_hidden_loop');
}
function startGroup(&$group, $required, $error)
{
$blockName = $this->_matchBlock($group);
$this->_tpl->setCurrentBlock($blockName . '_loop');
$this->_groupElementIdx = 0;
$this->_groupSeparator = is_null($group->_separator)? ' ': $group->_separator;
// show an '*' near the required element
if ($required) {
$this->_showRequired = true;
if ($this->_tpl->blockExists($blockName . '_required')) {
$this->_tpl->touchBlock($blockName . '_required');
}
}
// show the error message or keep it for later use
if (!empty($error)) {
if ($this->_tpl->blockExists($blockName . '_error')) {
$this->_tpl->setVariable('qf_error', $error);
} else {
$this->_errors[] = $error;
}
}
$this->_tpl->setVariable('qf_group_label', $group->getLabel());
}
function finishGroup(&$group)
{
$this->_tpl->parse($this->_matchBlock($group));
$this->_tpl->setCurrentBlock('qf_main_loop');
$this->_tpl->parseCurrentBlock();
}
/**
* Returns the name of a block to use for element rendering
*
* If a name was not explicitly set via setElementBlock(), it tries
* the names '{prefix}_{element type}' and '{prefix}_{element}', where
* prefix is either 'qf' or the name of the current group's block
*
* @param object An HTML_QuickForm_element object
* @access private
* @return string block name
*/
function _matchBlock(&$element)
{
$name = $element->getName();
$type = $element->getType();
if (isset($this->_elementBlocks[$name]) && $this->_tpl->blockExists($this->_elementBlocks[$name])) {
if (('group' == $type) || ($this->_elementBlocks[$name] . '_loop' != $this->_tpl->currentBlock)) {
return $this->_elementBlocks[$name];
}
}
if ('group' != $type && 'qf_main_loop' != $this->_tpl->currentBlock) {
$prefix = substr($this->_tpl->currentBlock, 0, -5); // omit '_loop' postfix
} else {
$prefix = 'qf';
}
if ($this->_tpl->blockExists($prefix . '_' . $type)) {
return $prefix . '_' . $type;
} elseif ($this->_tpl->blockExists($prefix . '_' . $name)) {
return $prefix . '_' . $name;
} else {
return $prefix . '_element';
}
}
/**
* Sets the block to use for element rendering
*
* @param mixed element name or array ('element name' => 'block name')
* @param string block name if $elementName is not an array
* @access public
* @return void
*/
function setElementBlock($elementName, $blockName = null)
{
if (is_array($elementName)) {
$this->_elementBlocks = array_merge($this->_elementBlocks, $elementName);
} else {
$this->_elementBlocks[$elementName] = $blockName;
}
}
/**
* Sets the name of a block to use for header rendering
*
* @param string block name
* @access public
* @return void
*/
function setHeaderBlock($blockName)
{
$this->_headerBlock = $blockName;
}
}
?>
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