Loader.php
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<?php
/**
* This file is part of TwigView.
*
** (c) 2014 Cees-Jan Kiewiet
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace WyriHaximus\TwigView\Lib\Twig;
use Cake\Core\App;
use Cake\Core\Plugin;
use Twig_Error_Loader;
use Twig_Source;
use WyriHaximus\TwigView\View\TwigView;
/**
* Class Loader
* @package WyriHaximus\TwigView\Lib\Twig
*/
class Loader implements \Twig_LoaderInterface, \Twig_ExistsLoaderInterface, \Twig_SourceContextLoaderInterface
{
/**
* Get the file contents of a template.
*
* @param string $name Template.
*
* @return string
*/
public function getSource($name)
{
$name = $this->resolveFileName($name);
return file_get_contents($name);
}
/**
* Get cache key for template.
*
* @param string $name Template.
*
* @return string
*/
public function getCacheKey($name)
{
return $this->resolveFileName($name);
}
/**
* Check if template is still fresh.
*
* @param string $name Template.
* @param integer $time Timestamp.
*
* @return boolean
*/
public function isFresh($name, $time)
{
$name = $this->resolveFileName($name);
return filemtime($name) < $time;
}
/**
* Resolve template name to filename.
*
* @param string $name Template.
*
* @return string
*
* @throws \Twig_Error_Loader Thrown when template file isn't found.
*/
// @codingStandardsIgnoreStart
protected function resolveFileName($name)
{
// @codingStandardsIgnoreEnd
if (file_exists($name)) {
return $name;
}
list($plugin, $file) = pluginSplit($name);
foreach ([
null,
$plugin,
] as $scope) {
$paths = $this->getPaths($scope);
foreach ($paths as $path) {
$filePath = $path . $file;
if (file_exists($filePath)) {
return $filePath;
}
$filePath = $path . $file . TwigView::EXT;
if (file_exists($filePath)) {
return $filePath;
}
}
}
throw new \Twig_Error_Loader(sprintf('Template "%s" is not defined.', $name));
}
/**
* Check if $plugin is active and return it's template paths or return the aps template paths.
*
* @param string|null $plugin The plugin in question.
*
* @return array
*/
protected function getPaths($plugin)
{
if ($plugin === null || !Plugin::loaded($plugin)) {
return App::path('Template');
}
return App::path('Template', $plugin);
}
public function exists($name)
{
$name = $this->resolveFileName($name);
return file_exists($name);
}
public function getSourceContext($name)
{
$path = $this->resolveFileName($name);
return new Twig_Source(file_get_contents($path), $name, $path);
}
}