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   1  <?php
   2  /**
   3   * Pattern Overrides source for the Block Bindings.
   4   *
   5   * @since 6.5.0
   6   * @package WordPress
   7   * @subpackage Block Bindings
   8   */
   9  
  10  /**
  11   * Gets value for the Pattern Overrides source.
  12   *
  13   * @since 6.5.0
  14   * @access private
  15   *
  16   * @param array    $source_args    Array containing source arguments used to look up the override value.
  17   *                                 Example: array( "key" => "foo" ).
  18   * @param WP_Block $block_instance The block instance.
  19   * @param string   $attribute_name The name of the target attribute.
  20   * @return mixed The value computed for the source.
  21   */
  22  function _block_bindings_pattern_overrides_get_value( array $source_args, $block_instance, string $attribute_name ) {
  23      if ( empty( $block_instance->attributes['metadata']['name'] ) ) {
  24          return null;
  25      }
  26      $metadata_name = $block_instance->attributes['metadata']['name'];
  27      return _wp_array_get( $block_instance->context, array( 'pattern/overrides', $metadata_name, $attribute_name ), null );
  28  }
  29  
  30  /**
  31   * Registers Pattern Overrides source in the Block Bindings registry.
  32   *
  33   * @since 6.5.0
  34   * @access private
  35   */
  36  function _register_block_bindings_pattern_overrides_source() {
  37      register_block_bindings_source(
  38          'core/pattern-overrides',
  39          array(
  40              'label'              => _x( 'Pattern Overrides', 'block bindings source' ),
  41              'get_value_callback' => '_block_bindings_pattern_overrides_get_value',
  42              'uses_context'       => array( 'pattern/overrides' ),
  43          )
  44      );
  45  }
  46  
  47  add_action( 'init', '_register_block_bindings_pattern_overrides_source' );