File Source for Installer

<?php
/**
* @package linea21.externals
* @subpackage Class Installer
* @author Vadim V. Gabriel <vadimg88@gmail.com>
* @link http://www.vadimg.co.il/
* @version 1.0.0a
* @license GNU Lesser General Public License
*/
/** load installer class **/
require_once(INSTALLER_PATH . '/Installer.php');
/**
* Installer Template class
*
*/
class Installer_Template
{
/**
* Html property
*
* @var string
*/
protected $html;
/**
* Varibles Array
*
* @var array
*/
public $vars = array();
/**
* Constructor
*
*/
public function __construct($lang)
{
$this->lang = $lang;
}
/**
* Render a template
*
* @param string $template_name
*/
public function render($template_name)
{
$path = TMPL_PATH . DIRECTORY_SEPARATOR . $template_name . '.phtml';
if(!file_exists($path))
{
$this->error(sprintf($this->lang['L-11'], $template_name, TMPL_PATH));
}
# Require the template
$contents = file_get_contents($path);
# Pass it on
$this->html .= $contents;
return $contents;
}
/**
* Print the error screen with the error page
*
* @param string $error_string
*/
public function error($error_string)
{
$template_name = 'error';
$path = TMPL_PATH . DIRECTORY_SEPARATOR . $template_name . '.phtml';
if(!file_exists($path))
{
die(sprintf($this->lang['L-11'], $template_name, TMPL_PATH));
}
# Require the template
$contents = file_get_contents($path);
$contents = str_replace("{#ERROR#}", $error_string, $contents);
# Pass it on
$this->html .= $contents;
$this->display();
exit;
}
/**
* Print out the entire page
*
*/
public function display()
{
$template_name = 'layout';
$path = TMPL_PATH . DIRECTORY_SEPARATOR . $template_name . '.phtml';
if(!file_exists($path))
{
$this->error(sprintf($this->lang['L-11'], $template_name, TMPL_PATH));
}
# Require the template
$contents = file_get_contents($path);
# Replace the data
$contents = $this->replaceVars($contents);
# Print it
print $contents;
exit;
}
/**
* Replace vars with there values
*
*/
protected function replaceVars($contents)
{
if(!is_array($this->vars) && !count($this->vars))
{
return;
}
$this->vars['url'] = BASE_URL;
# Vars
foreach ($this->vars as $key => $value)
{
$contents = preg_replace("/{#{$key}#}/i", $value, $contents);
$this->html = preg_replace("/{#{$key}#}/i", $value, $this->html);
}
# Langs
if(is_array($this->lang) && count($this->lang))
{
# Langs
foreach($this->lang as $key => $value)
{
$contents = preg_replace("/{#{$key}#}/i", $value, $contents);
$this->html = preg_replace("/{#{$key}#}/i", $value, $this->html);
}
}
# Links
$links = array(1 => 'index', 2 => 'db', 3 => 'cfg', 4 => 'finish');
foreach ($links as $key => $value)
{
if($_POST['step'] == $value)
{
$contents = preg_replace("/{#LINK{$key}#}/i", "class='current'", $contents);
}
else
{
$contents = preg_replace("/{#LINK{$key}#}/i", '', $contents);
}
}
# Html
$contents = str_replace("{#DATA#}", $this->html, $contents);
$rtl_css = '';
# We will load a CSS just for RTL languages
if($this->lang['direction'] == 'rtl')
{
$rtl_css = '<link rel="stylesheet" type="text/css" href="installer/data/templates/rtl.css" />';
$contents = str_replace("", $rtl_css, $contents);
}
# Empty
$this->vars = array();
return $contents;
}
}

Source for file Installer_Template.php