first commit

wp-includes/block-bindings/pattern-overrides.php

@@ -0,0 +1,47 @@
+<?php
+/**
+ * Pattern Overrides source for the Block Bindings.
+ *
+ * @since 6.5.0
+ * @package WordPress
+ * @subpackage Block Bindings
+ */
+
+/**
+ * Gets value for the Pattern Overrides source.
+ *
+ * @since 6.5.0
+ * @access private
+ *
+ * @param array    $source_args    Array containing source arguments used to look up the override value.
+ *                                 Example: array( "key" => "foo" ).
+ * @param WP_Block $block_instance The block instance.
+ * @param string   $attribute_name The name of the target attribute.
+ * @return mixed The value computed for the source.
+ */
+function _block_bindings_pattern_overrides_get_value( array $source_args, $block_instance, string $attribute_name ) {
+	if ( empty( $block_instance->attributes['metadata']['name'] ) ) {
+		return null;
+	}
+	$metadata_name = $block_instance->attributes['metadata']['name'];
+	return _wp_array_get( $block_instance->context, array( 'pattern/overrides', $metadata_name, $attribute_name ), null );
+}
+
+/**
+ * Registers Pattern Overrides source in the Block Bindings registry.
+ *
+ * @since 6.5.0
+ * @access private
+ */
+function _register_block_bindings_pattern_overrides_source() {
+	register_block_bindings_source(
+		'core/pattern-overrides',
+		array(
+			'label'              => _x( 'Pattern Overrides', 'block bindings source' ),
+			'get_value_callback' => '_block_bindings_pattern_overrides_get_value',
+			'uses_context'       => array( 'pattern/overrides' ),
+		)
+	);
+}
+
+add_action( 'init', '_register_block_bindings_pattern_overrides_source' );