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namespace Tev\View;
use Tev\View\Exception\NotFoundException;
/**
* Simple buffer-based view renderer.
*
* Will search for template files in the configured template dir first,
* and then fallback to the current theme directory.
*/
class Renderer
{
/**
* Template directory.
*
* @var string
*/
private $templateDir;
/**
* View data container.
*
* @var array
*/
private $viewData;
/**
* Constructor.
*
* @param string $templateDir Template directory
* @return void
*/
public function __construct($templateDir)
{
$this->templateDir = $templateDir;
$this->viewData = array();
}
/**
* Renders a template file.
*
* Assigns all $var keys to $this->$key for us in template.
*
* @param string $filename Full-filename
* @param array $vars View variables
* @return string Rendered view
*
* @throws \Tev\View\Exception\NotFoundException If view file not found
*/
public function render($filename, $vars = array())
{
$localTemplate = $this->templateDir . '/' . $filename;
$themeTemplate = locate_template($filename);
if (!file_exists($localTemplate) && !file_exists($themeTemplate)) {
throw new NotFoundException("View at $localTemplate or $themeTemplate not found");
}
$this->viewData = $vars;
$template = file_exists($localTemplate) ? $localTemplate : $themeTemplate;
ob_start();
include($template);
$view = ob_get_contents();
ob_end_clean();
return $view;
}
/**
* Magic getter, for getting view variables.
*
* @param string $name View variable name
* @return mixed View variable, or null if not set
*/
public function __get($name)
{
return isset($this->viewData[$name]) ? $this->viewData[$name] : null;
}
}