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<?php |
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class TimberFunctionWrapper { |
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private $_class; |
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private $_function; |
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private $_args; |
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private $_use_ob; |
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public function __toString() { |
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try { |
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return (string)$this->call(); |
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} catch (Exception $e) { |
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return 'Caught exception: ' . $e->getMessage() . "\n"; |
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} |
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} |
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/** |
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* |
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* |
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* @param callable $function |
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* @param array $args |
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* @param bool $return_output_buffer |
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*/ |
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public function __construct( $function, $args = array(), $return_output_buffer = false ) { |
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if( is_array( $function ) ) { |
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if( (is_string( $function[0] ) && class_exists( $function[0] ) ) || gettype( $function[0] ) === 'object' ) { |
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$this->_class = $function[0]; |
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} |
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if( is_string( $function[1] ) ) $this->_function = $function[1]; |
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} else { |
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$this->_function = $function; |
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} |
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$this->_args = $args; |
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$this->_use_ob = $return_output_buffer; |
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add_filter( 'get_twig', array( &$this, 'add_to_twig' ) ); |
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} |
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/** |
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* |
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* |
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* @param Twig_Environment $twig |
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* @return Twig_Environment |
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*/ |
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public function add_to_twig( $twig ) { |
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$wrapper = $this; |
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$twig->addFunction( new Twig_SimpleFunction( $this->_function, function () use ( $wrapper ) { |
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return call_user_func_array( array( $wrapper, 'call' ), func_get_args() ); |
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} ) ); |
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return $twig; |
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} |
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/** |
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* |
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* |
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* @return string |
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*/ |
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public function call() { |
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$args = $this->_parse_args( func_get_args(), $this->_args ); |
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$callable = ( isset( $this->_class ) ) ? array( $this->_class, $this->_function ) : $this->_function; |
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if ( $this->_use_ob ) { |
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return TimberHelper::ob_function( $callable, $args ); |
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} else { |
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return call_user_func_array( $callable, $args ); |
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} |
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} |
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/** |
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* |
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* |
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* @param array $args |
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* @param array $defaults |
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* @return array |
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*/ |
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private function _parse_args( $args, $defaults ) { |
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$_arg = reset( $defaults ); |
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foreach ( $args as $index => $arg ) { |
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$defaults[$index] = is_null( $arg ) ? $_arg : $arg; |
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$_arg = next( $defaults ); |
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} |
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return $defaults; |
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} |
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} |
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jarednova /
timber
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