version 4.13.0

includes/builder/class-et-builder-module-features.php

@@ -0,0 +1,97 @@
+<?php
+/**
+ * Module Features feature class.
+ *
+ * @package Divi
+ * @subpackage Builder
+ * @since 4.10.0
+ */
+
+/**
+ * Handles Builder Module Features.
+ *
+ * @since 4.10.0
+ */
+class ET_Builder_Module_Features extends ET_Builder_Post_Feature_Base {
+
+	const CACHE_META_KEY = '_et_builder_module_features_cache';
+
+	/**
+	 * Cache group.
+	 *
+	 * @access protected
+	 * @var array
+	 */
+	protected $_cache_group = [];
+
+	/**
+	 * Construct instance.
+	 */
+	public function __construct() {
+		parent::__construct();
+		// Get shortcode tag / attributes.
+		add_filter( 'pre_do_shortcode_tag', [ $this, 'set_cache_group' ], 99, 3 );
+		add_filter( 'do_shortcode_tag', [ $this, 'restore_previous_cache_group' ] );
+	}
+
+	/**
+	 * Creates a key from a shortcode tag and its attributes.
+	 *
+	 * @since 4.10.0
+	 * @access public
+	 * @param string $tag Shortcode tag.
+	 * @param string $attrs Shortcode attributes.
+	 *
+	 * @return string
+	 */
+	public static function get_key( $tag, $attrs ) {
+		$key = $tag . '_' . md5( wp_json_encode( $attrs ) );
+		return $key;
+	}
+
+	/**
+	 * Set cache group.
+	 *
+	 * @since 4.10.0
+	 * @access public
+	 * @param mixed  $override Whether to override do_shortcode return value or not.
+	 * @param string $tag Shortcode tag.
+	 * @param string $attrs Shortcode attributes.
+	 * @return mixed
+	 */
+	public function set_cache_group( $override, $tag, $attrs ) {
+		$this->_cache_group[] = self::get_key( $tag, $attrs );
+		return $override;
+	}
+
+	/**
+	 * Restore previous cache group when current shortcode execution ends.
+	 *
+	 * @since 4.10.0
+	 * @access public
+	 * @param mixed $output Shortcode content.
+	 * @return mixed
+	 */
+	public function restore_previous_cache_group( $output ) {
+		// Get rid of current shortcode cache group.
+		array_pop( $this->_cache_group );
+		return $output;
+	}
+
+	/**
+	 * Check for cached value.
+	 *
+	 * First check cache if present, if not, determine
+	 * from calling the callback.
+	 *
+	 * @param string   $key Name of item.
+	 * @param function $cb  Callback function to perform logic.
+	 * @param string   $group Cache group.
+	 *
+	 * @return bool/mixed Result.
+	 */
+	public function get( $key, $cb, $group = 'default' ) {
+		return parent::get( $key, $cb, end( $this->_cache_group ) );
+	}
+
+}