feat: experimental Feedzy Tag Block for Feedzy Loop

includes/feedzy-rss-feeds.php

@@ -285,6 +285,7 @@ function () {
 				function () {
 					if ( function_exists( 'register_block_type' ) ) {
 						Feedzy_Rss_Feeds_Gutenberg_Block::get_instance();
+						Feedzy_Rss_Feeds_Tag_Block::get_instance();
 						Feedzy_Rss_Feeds_Loop_Block::get_instance();
 					}
 				}

includes/gutenberg/feedzy-rss-feeds-feed-template-block.php

@@ -0,0 +1,96 @@
+<?php
+/**
+ * Class for functionalities related to Loop block.
+ *
+ * Defines the functions that need to be used for Loop block,
+ * and REST router.
+ *
+ * @package    feedzy-rss-feeds
+ * @subpackage feedzy-rss-feeds/includes/guteneberg
+ * @author     Themeisle <[email protected]>
+ *
+ * @since 5.1.0
+ */
+class Feedzy_Rss_Feeds_Feed_Template_Block {
+
+	/**
+	 * A reference to an instance of this class.
+	 *
+	 * @var Feedzy_Rss_Feeds_Feed_Template_Block|null The one Feedzy_Rss_Feeds_Loop_Block instance.
+	 */
+	private static $instance;
+
+	/**
+	 * Feedzy RSS Feeds plugin version.
+	 *
+	 * @var string $version The current version of the plugin.
+	 */
+	protected $version;
+
+	/**
+	 * Returns an instance of this class.
+	 * 
+	 * @return Feedzy_Rss_Feeds_Feed_Template_Block The instance of the class.
+	 */
+	public static function get_instance() {
+		if ( null === self::$instance ) {
+			self::$instance = new Feedzy_Rss_Feeds_Feed_Template_Block();
+		}
+		return self::$instance;
+	}
+
+	/**
+	 * Initializes the plugin by setting filters and administration functions.
+	 */
+	private function __construct() {
+		$this->version = Feedzy_Rss_Feeds::get_version();
+		add_action( 'init', array( $this, 'register_block' ) );
+	}
+
+	/**
+	 * Register Block.
+	 * 
+	 * @return void
+	 */
+	public function register_block() {
+		$metadata_file = trailingslashit( FEEDZY_ABSPATH ) . '/build/template/block.json';
+		register_block_type_from_metadata(
+			$metadata_file,
+			array(
+				'render_callback' => array( $this, 'render_callback' ),
+			)
+		);
+	}
+
+	/**
+	 * Render Callback
+	 *
+	 * @param array<string, mixed> $attributes The block attributes.
+	 * @param string               $content The block content.
+	 * @param WP_Block             $block The block instance.
+	 * @return string The block content.
+	 */
+	public function render_callback( $attributes, $content, $block ) {
+		if (
+			! isset( $attributes['tag'] ) || empty( $attributes['tag'] ) ||
+			empty( $block->context ) ||
+			! isset( $block->context['feedzy-rss-feeds/feedItem'] ) || empty( $block->context['feedzy-rss-feeds/feedItem'] )
+		) {
+			return '';
+		}
+
+		$feed_item = $block->context['feedzy-rss-feeds/feedItem'];
+
+		if ( ! isset( $feed_item[ $attributes['tag'] ] ) ) {
+			return '';
+		}
+
+		$wrapper_attributes = get_block_wrapper_attributes();
+
+		return sprintf(
+			'<div %1$s>%2$s</div>',
+			$wrapper_attributes,
+			wp_kses_post( $feed_item[ $attributes['tag'] ] )
+		);
+	}
+}