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<?php
/**
* @package com_zoo
* @author YOOtheme http://www.yootheme.com
* @copyright Copyright (C) YOOtheme GmbH
* @license http://www.gnu.org/licenses/gpl.html GNU/GPL
*/
/**
* Helper that acts as a wrapper for JDocument
*
* @package Framework.Helpers
*/
class DocumentHelper extends AppHelper {
/**
* Last modification date for the file. Used for prevent the browser to use the cached version of an older CSS file
*
* @var string
* @since 1.0.0
*/
private $file_mod_date;
/**
* Adds a CSS to the document head
*
* @param string $path The path to the css file
* @param string $version A version to add to the url to prevent caching (default: last modification date of the file)
*
* @since 1.0.0
*/
public function addStylesheet($path, $version = null) {
if ($file = $this->app->path->url($path)) {
$this->app->system->document->addStylesheet($file.$this->getVersion($version));
}
}
/**
* Adds a javascript file to the document head
*
* If jquery wasn't loaded yet, load it before the other javascript files
*
* @param string $path The path to the javascript file
* @param string $version A version to add to the url to prevent caching (default: last modification date of the file)
*
* @since 1.0.0
*/
public function addScript($path, $version = null) {
$version = $this->getVersion($version);
// load jQuery, if not loaded before
if (!$this->app->joomla->version->isCompatible('3.0')) {
if (!$this->app->system->application->get('jquery')) {
$this->app->system->application->set('jquery', true);
$this->app->system->document->addScript($this->app->path->url('libraries:jquery/jquery.js').$version);
}
} else {
JHtml::_('jquery.framework');
}
if ($file = $this->app->path->url($path)) {
$this->app->system->document->addScript($file.$version);
}
}
/**
* Magic method to map JDocument methods to this helper
*
* @param string $method The method name
* @param array $args The list of arguments to pass on to the method
*
* @return mixed The result of the called method
*
* @since 1.0.0
*/
public function __call($method, $args) {
return $this->_call(array($this->app->system->document, $method), $args);
}
/**
* Get the get parameter to append using the version of a file.
*
* If no version is found, check the last time the file was edited and use that date as the version
*
* @param string $version The version to append (default: last modification date)
*
* @return string The get parameter to append
*/
private function getVersion($version = null) {
if ($version === null) {
if (empty($this->file_mod_date)) {
$this->file_mod_date = date("Ymd", filemtime(__FILE__));
}
return '?ver='.$this->file_mod_date;
}
return empty($version) ? '' : '?ver='.$version;
}
}