Add filters for block patterns and pattern categories.

inc/block-patterns.php

@@ -12,28 +12,35 @@
 	 * @since Twenty Twenty-Two 1.0
 	 */
 	function twentytwentytwo_register_block_patterns() {
-
-		register_block_pattern_category(
-			'twentytwentytwo-general',
-			array( 'label' => __( 'Twenty Twenty-Two General', 'twentytwentytwo' ) )
-		);
-		register_block_pattern_category(
-			'twentytwentytwo-footers',
-			array( 'label' => __( 'Twenty Twenty-Two Footers', 'twentytwentytwo' ) )
-		);
-		register_block_pattern_category(
-			'twentytwentytwo-headers',
-			array( 'label' => __( 'Twenty Twenty-Two Headers', 'twentytwentytwo' ) )
-		);
-		register_block_pattern_category(
-			'twentytwentytwo-query',
-			array( 'label' => __( 'Twenty Twenty-Two Posts', 'twentytwentytwo' ) )
-		);
-		register_block_pattern_category(
-			'twentytwentytwo-pages',
-			array( 'label' => __( 'Twenty Twenty-Two Pages', 'twentytwentytwo' ) )
+		$block_pattern_categories = array(
+			'twentytwentytwo-general' => array( 'label' => __( 'Twenty Twenty-Two General', 'twentytwentytwo' ) ),
+			'twentytwentytwo-footers' => array( 'label' => __( 'Twenty Twenty-Two Footers', 'twentytwentytwo' ) ),
+			'twentytwentytwo-headers' => array( 'label' => __( 'Twenty Twenty-Two Headers', 'twentytwentytwo' ) ),
+			'twentytwentytwo-query'   => array( 'label' => __( 'Twenty Twenty-Two Posts', 'twentytwentytwo' ) ),
+			'twentytwentytwo-pages'   => array( 'label' => __( 'Twenty Twenty-Two Pages', 'twentytwentytwo' ) ),
 		);
 
+		/**
+		 * Filters the theme block pattern categories.
+		 *
+		 * @since Twenty Twenty-Two 1.0
+		 *
+		 * @param array[] $block_pattern_categories {
+		 *     An associative array of block pattern categories, keyed by category name.
+		 *
+		 *     @type array[] $properties {
+		 *         An array of block category properties.
+		 *
+		 *         @type string $label A human-readable label for the pattern category.
+		 *     }
+		 * }
+		 */
+		$block_pattern_categories = apply_filters( 'twentytwentytwo_block_pattern_categories', $block_pattern_categories );
+
+		foreach ( $block_pattern_categories as $name => $properties ) {
+			register_block_pattern_category( $name, $properties );
+		}
+
 		$block_patterns = array(
 			'footer-default',
 			'footer-dark',
@@ -104,6 +111,15 @@ function twentytwentytwo_register_block_patterns() {
 			'query-irregular-grid',
 		);
 
+		/**
+		 * Filters the theme block patterns.
+		 *
+		 * @since Twenty Twenty-Two 1.0
+		 *
+		 * @param $block_patterns array List of block patterns by name.
+		 */
+		$block_patterns = apply_filters( 'twentytwentytwo_block_patterns', $block_patterns );
+
 		foreach ( $block_patterns as $block_pattern ) {
 			register_block_pattern(
 				'twentytwentytwo/' . $block_pattern,