attributes ) { $block_type->attributes = array(); } if ( $has_spacing_support && ! array_key_exists( 'style', $block_type->attributes ) ) { $block_type->attributes['style'] = array( 'type' => 'object', ); } } /** * Add CSS classes for block spacing to the incoming attributes array. * This will be applied to the block markup in the front-end. * * @since 5.8.0 * @access private * * @param WP_Block_Type $block_type Block Type. * @param array $block_attributes Block attributes. * @return array Block spacing CSS classes and inline styles. */ function wp_apply_spacing_support( $block_type, $block_attributes ) { if ( wp_should_skip_block_supports_serialization( $block_type, 'spacing' ) ) { return array(); } $has_padding_support = block_has_support( $block_type, array( 'spacing', 'padding' ), false ); $has_margin_support = block_has_support( $block_type, array( 'spacing', 'margin' ), false ); $skip_padding = wp_should_skip_block_supports_serialization( $block_type, 'spacing', 'padding' ); $skip_margin = wp_should_skip_block_supports_serialization( $block_type, 'spacing', 'margin' ); $styles = array(); if ( $has_padding_support && ! $skip_padding ) { $padding_value = _wp_array_get( $block_attributes, array( 'style', 'spacing', 'padding' ), null ); if ( is_array( $padding_value ) ) { foreach ( $padding_value as $key => $value ) { $styles[] = sprintf( 'padding-%s: %s;', $key, $value ); } } elseif ( null !== $padding_value ) { $styles[] = sprintf( 'padding: %s;', $padding_value ); } } if ( $has_margin_support && ! $skip_margin ) { $margin_value = _wp_array_get( $block_attributes, array( 'style', 'spacing', 'margin' ), null ); if ( is_array( $margin_value ) ) { foreach ( $margin_value as $key => $value ) { $styles[] = sprintf( 'margin-%s: %s;', $key, $value ); } } elseif ( null !== $margin_value ) { $styles[] = sprintf( 'margin: %s;', $margin_value ); } } return empty( $styles ) ? array() : array( 'style' => implode( ' ', $styles ) ); } // Register the block support. WP_Block_Supports::get_instance()->register( 'spacing', array( 'register_attribute' => 'wp_register_spacing_support', 'apply' => 'wp_apply_spacing_support', ) );