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<?php |
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namespace Rarst\Meadow; |
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use Pimple\Container; |
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/** |
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* Main plugin class. |
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*/ |
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class Core extends Container { |
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/** |
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* @param array $values Optional array of services/options. |
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*/ |
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public function __construct( $values = array() ) { |
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global $wp_version; |
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$defaults = []; |
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$defaults['twig.options'] = []; |
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$defaults['twig.directories'] = []; |
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// This needs to be lazy or theme switchers and alike explode it. |
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$defaults['twig.loader'] = function ( $meadow ) { |
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$stylesheet_dir = get_stylesheet_directory(); |
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$template_dir = get_template_directory(); |
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$calculated_dirs = array( |
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$stylesheet_dir, |
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$template_dir, |
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plugin_dir_path( __DIR__ ) . 'src/twig', |
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); |
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// Enables explicit inheritance from parent theme in child. |
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if ( $stylesheet_dir !== $template_dir ) { |
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$calculated_dirs[] = \dirname( $template_dir ); |
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} |
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$directories = array_unique( |
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array_merge( |
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$calculated_dirs, |
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$meadow['twig.directories'] |
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) |
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); |
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return new \Twig_Loader_Filesystem( $directories ); |
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}; |
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$defaults['twig.undefined_function'] = array( __CLASS__, 'undefined_function' ); |
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$defaults['twig.undefined_filter'] = array( __CLASS__, 'undefined_filter' ); |
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$defaults['twig.environment'] = function ( $meadow ) { |
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$environment = new \Twig_Environment( $meadow['twig.loader'], $meadow['twig.options'] ); |
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$meadow_extension = new Extension(); |
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$environment->addExtension( $meadow_extension ); |
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$environment->registerUndefinedFunctionCallback( $meadow['twig.undefined_function'] ); |
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$environment->registerUndefinedFilterCallback( $meadow['twig.undefined_filter'] ); |
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if ( \defined( 'WP_DEBUG' ) && WP_DEBUG ) { |
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$debug_extension = new \Twig_Extension_Debug(); |
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$environment->addExtension( $debug_extension ); |
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$environment->enableDebug(); |
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} |
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return $environment; |
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}; |
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if ( version_compare( rtrim( $wp_version, '-src' ), '4.7', '>=' ) ) { |
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$defaults['hierarchy'] = function () { |
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return new Type_Template_Hierarchy(); |
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}; |
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} else { |
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trigger_error( 'Pre–WP 4.7 implementation of Meadow hierarchy is deprecated and will be removed in 1.0.', E_USER_DEPRECATED ); |
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$defaults['hierarchy'] = function () { |
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/** @noinspection PhpDeprecationInspection */ |
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return new Template_Hierarchy(); |
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}; |
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} |
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parent::__construct( array_merge( $defaults, $values ) ); |
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} |
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/** |
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* Handler for undefined functions in Twig to pass them through to PHP and buffer echoing versions. |
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* |
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* @param string $function_name Name of the function to handle. |
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* |
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* @return bool|\Twig_Function |
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*/ |
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public static function undefined_function( $function_name ) { |
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if ( \function_exists( $function_name ) ) { |
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return new \Twig_Function( |
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$function_name, |
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function () use ( $function_name ) { |
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ob_start(); |
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$return = \call_user_func_array( $function_name, \func_get_args() ); |
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$echo = ob_get_clean(); |
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return empty( $echo ) ? $return : $echo; |
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}, |
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array( 'is_safe' => array( 'all' ) ) |
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); |
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} |
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return false; |
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} |
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/** |
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* Handler for fallback to WordPress filters for undefined Twig filters in template. |
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* |
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* @param string $filter_name Name of the filter to handle. |
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* |
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* @return bool|\Twig_Filter |
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*/ |
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public static function undefined_filter( $filter_name ) { |
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return new \Twig_Filter( |
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$filter_name, |
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function () use ( $filter_name ) { |
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return apply_filters( $filter_name, func_get_arg( 0 ) ); |
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}, |
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array( 'is_safe' => array( 'all' ) ) |
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); |
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} |
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public function enable() { |
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/** @var Template_Hierarchy $hierarchy */ |
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$hierarchy = $this['hierarchy']; |
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$hierarchy->enable(); |
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add_filter( 'template_include', [ $this, 'template_include' ], 100 ); |
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add_filter( 'get_search_form', array( $this, 'get_search_form' ), 9 ); |
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} |
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public function disable() { |
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/** @var Template_Hierarchy $hierarchy */ |
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$hierarchy = $this['hierarchy']; |
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$hierarchy->disable(); |
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remove_filter( 'template_include', [ $this, 'template_include' ], 100 ); |
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remove_filter( 'get_search_form', array( $this, 'get_search_form' ), 9 ); |
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} |
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/** |
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* @param string $template Template found by loader. |
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* |
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* @return string|bool |
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*/ |
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public function template_include( $template ) { |
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if ( '.twig' === substr( $template, - 5 ) ) { |
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/** @var \Twig_Environment $twig */ |
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$twig = $this['twig.environment']; |
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echo $twig->render( basename( $template ), apply_filters( 'meadow_context', array() ) ); |
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die(); |
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} |
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return $template; |
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} |
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/** |
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* @param string $form Form markup. |
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* |
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* @return string |
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*/ |
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public function get_search_form( $form ) { |
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// Because first time it's an action. |
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if ( ! empty( $form ) ) { |
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/** @var \Twig_Environment $twig */ |
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$twig = $this['twig.environment']; |
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return $twig->render( 'searchform.twig' ); |
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} |
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return $form; |
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} |
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} |
Rarst /
meadow
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