custom-classname.php (1692B)
1 <?php 2 /** 3 * Custom classname block support flag. 4 * 5 * @package WordPress 6 * @since 5.6.0 7 */ 8 9 /** 10 * Registers the custom classname block attribute for block types that support it. 11 * 12 * @since 5.6.0 13 * @access private 14 * 15 * @param WP_Block_Type $block_type Block Type. 16 */ 17 function wp_register_custom_classname_support( $block_type ) { 18 $has_custom_classname_support = block_has_support( $block_type, array( 'customClassName' ), true ); 19 20 if ( $has_custom_classname_support ) { 21 if ( ! $block_type->attributes ) { 22 $block_type->attributes = array(); 23 } 24 25 if ( ! array_key_exists( 'className', $block_type->attributes ) ) { 26 $block_type->attributes['className'] = array( 27 'type' => 'string', 28 ); 29 } 30 } 31 } 32 33 /** 34 * Add the custom classnames to the output. 35 * 36 * @since 5.6.0 37 * @access private 38 * 39 * @param WP_Block_Type $block_type Block Type. 40 * @param array $block_attributes Block attributes. 41 * 42 * @return array Block CSS classes and inline styles. 43 */ 44 function wp_apply_custom_classname_support( $block_type, $block_attributes ) { 45 $has_custom_classname_support = block_has_support( $block_type, array( 'customClassName' ), true ); 46 $attributes = array(); 47 if ( $has_custom_classname_support ) { 48 $has_custom_classnames = array_key_exists( 'className', $block_attributes ); 49 50 if ( $has_custom_classnames ) { 51 $attributes['class'] = $block_attributes['className']; 52 } 53 } 54 55 return $attributes; 56 } 57 58 // Register the block support. 59 WP_Block_Supports::get_instance()->register( 60 'custom-classname', 61 array( 62 'register_attribute' => 'wp_register_custom_classname_support', 63 'apply' => 'wp_apply_custom_classname_support', 64 ) 65 );