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<?php
/**
* @package Gantry5
* @author RocketTheme http://www.rockettheme.com
* @copyright Copyright (C) 2007 - 2017 RocketTheme, LLC
* @license Dual License: MIT or GNU/GPLv2 and later
*
* http://opensource.org/licenses/MIT
* http://www.gnu.org/licenses/gpl-2.0.html
*
* Gantry Framework code that extends GPL code is considered GNU/GPLv2 and later
*/
namespace Gantry\Component\Twig;
/**
* Adds javascript / style assets to head/footer/custom location.
*
* {% assets in 'head' with { priority: 2 } %}
* <script type="text/javascript" src="{{ url('gantry-theme://js/my.js') }}"></script>
* <link rel="stylesheet" href="{{ url('gantry-assets://css/font-awesome.min.css') }}" type="text/css"/>
* {% endassets -%}
*/
class TokenParserAssets extends \Twig_TokenParser
{
/**
* Parses a token and returns a node.
*
* @param \Twig_Token $token A Twig_Token instance
*
* @return \Twig_NodeInterface A Twig_NodeInterface instance
*/
public function parse(\Twig_Token $token)
{
$lineno = $token->getLine();
$stream = $this->parser->getStream();
list($location, $variables) = $this->parseArguments($token);
$content = $this->parser->subparse([$this, 'decideBlockEnd'], true);
$stream->expect(\Twig_Token::BLOCK_END_TYPE);
return new TwigNodeScripts($content, $location, $variables, $lineno, $this->getTag());
}
/**
* @param \Twig_Token $token
* @return array
*/
protected function parseArguments(\Twig_Token $token)
{
$stream = $this->parser->getStream();
$location = null;
if ($stream->nextIf(\Twig_Token::OPERATOR_TYPE, 'in')) {
$location = $this->parser->getExpressionParser()->parseExpression();
} else {
$lineno = $token->getLine();
$location = new \Twig_Node_Expression_Constant('head', $lineno);
}
if ($stream->nextIf(\Twig_Token::NAME_TYPE, 'with')) {
$variables = $this->parser->getExpressionParser()->parseExpression();
} else {
$lineno = $token->getLine();
$variables = new \Twig_Node_Expression_Array([], $lineno);
$variables->setAttribute('priority', 0);
}
$stream->expect(\Twig_Token::BLOCK_END_TYPE);
return [$location, $variables];
}
public function decideBlockEnd(\Twig_Token $token)
{
return $token->test('endassets');
}
/**
* Gets the tag name associated with this token parser.
*
* @return string The tag name
*/
public function getTag()
{
return 'assets';
}
}