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<?php
/**
* @package ZOO
* @author YOOtheme http://www.yootheme.com
* @copyright Copyright (C) YOOtheme GmbH
* @license http://www.gnu.org/licenses/gpl.html GNU/GPL
*/
/**
* A class that contains element helper functions
*
* @package Component.Helpers
* @since 2.0
*/
class ElementHelper extends AppHelper{
/**
* Class constructor
*
* @param string $app App instance.
* @since 2.0
*/
public function __construct($app) {
parent::__construct($app);
// load class
$app->loader->register('Element', 'elements:element/element.php');
}
/**
* Returns an array of all Elements found for this application.
*
* @param Application $application The application object
*
* @return array applications elements
*
* @since 2.0
*/
public function getAll($application){
$elements = array();
$application->registerElementsPath();
foreach ($this->app->path->dirs('elements:') as $type) {
if ($type != 'element' && is_file($this->app->path->path("elements:$type/$type.php"))) {
if ($element = $this->create($type, $application)) {
if ($element->getMetaData('hidden') != 'true') {
$elements[] = $element;
}
}
}
}
return $elements;
}
/**
* Creates element of given type
*
* @param string $type The type to create
* @param Application $application The application object
*
* @return Element the created element
*
* @since 2.0
*/
public function create($type, $application = false) {
// load element class
$elementClass = 'Element'.$type;
if (!class_exists($elementClass)) {
if ($application) {
$application->registerElementsPath();
}
$this->app->loader->register($elementClass, "elements:$type/$type.php");
}
if (!class_exists($elementClass)) {
return false;
}
$testClass = new ReflectionClass($elementClass);
if ($testClass->isAbstract()) {
return false;
}
return new $elementClass($this->app);
}
/**
* Separates the passed element values with a separator
*
* @param string $separated_by The separator
* @param array $values the values to separate
*
* @return string The imploded string
*
* @since 2.0
*/
public function applySeparators($separated_by, $values) {
if (!is_array($values)) {
$values = array($values);
}
$separator = '';
$tag = '';
$enclosing_tag = '';
if ($separated_by) {
if (preg_match('/separator=\[(.*)\]/U', $separated_by, $result)) {
$separator = $result[1];
}
if (preg_match('/tag=\[(.*)\]/U', $separated_by, $result)) {
$tag = $result[1];
}
if (preg_match('/enclosing_tag=\[(.*)\]/U', $separated_by, $result)) {
$enclosing_tag = $result[1];
}
}
if (empty($separator) && empty($tag) && empty($enclosing_tag)) {
$separator = ', ';
}
if (!empty($tag)) {
foreach ($values as $key => $value) {
$values[$key] = sprintf($tag, $values[$key]);
}
}
$value = implode($separator, $values);
if (!empty($enclosing_tag)) {
$value = sprintf($enclosing_tag, $value);
}
return $value;
}
}