wp_render_layout_support_flag() – Renders the layout config to the block wrapper.

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Description

Renders the layout config to the block wrapper.

Usage

$string = wp_render_layout_support_flag( $block_content, $block );

Parameters

$block_content
( string ) required – Rendered block content.
$block
( array ) required – Block object.

Returns

string Filtered block content.

Source

File name: wordpress/wp-includes/block-supports/layout.php


Lines:

1 to 72 of 72
function wp_render_layout_support_flag( $block_content, $block ) {
  $block_type     = WP_Block_Type_Registry::WP_Block_Type_Registry::get_instance()->get_registered( $block['blockName'] );
  $support_layout = block_has_support( $block_type, array( '__experimentalLayout' ), false );

  if ( ! $support_layout ) {
    return $block_content;
  }

  $block_gap             = wp_get_global_settings( array( 'spacing', 'blockGap' ) );
  $default_layout        = wp_get_global_settings( array( 'layout' ) );
  $has_block_gap_support = isset( $block_gap ) ? null !== $block_gap : false;
  $default_block_layout  = _wp_array_get( $block_type->supports, array( '__experimentalLayout', 'default' ), array() );
  $used_layout           = isset( $block['attrs']['layout'] ) ? $block['attrs']['layout'] : $default_block_layout;
  if ( isset( $used_layout['inherit'] ) && $used_layout['inherit'] ) {
    if ( ! $default_layout ) {
      return $block_content;
    }
    $used_layout = $default_layout;
  }

  $class_names     = array();
  $container_class = wp_unique_id( 'wp-container-' );
  $class_names[]   = $container_class;

  // The following section was added to reintroduce a small set of layout classnames that were
  // removed in the 5.9 release (https://github.com/WordPress/gutenberg/issues/38719). It is
  // not intended to provide an extended set of classes to match all block layout attributes
  // here.
  if ( ! empty( $block['attrs']['layout']['orientation'] ) ) {
    $class_names[] = 'is-' . sanitize_title( $block['attrs']['layout']['orientation'] );
  }

  if ( ! empty( $block['attrs']['layout']['justifyContent'] ) ) {
    $class_names[] = 'is-content-justification-' . sanitize_title( $block['attrs']['layout']['justifyContent'] );
  }

  if ( ! empty( $block['attrs']['layout']['flexWrap'] ) && 'nowrap' === $block['attrs']['layout']['flexWrap'] ) {
    $class_names[] = 'is-nowrap';
  }

  $gap_value = _wp_array_get( $block, array( 'attrs', 'style', 'spacing', 'blockGap' ) );
  // Skip if gap value contains unsupported characters.
  // Regex for CSS value borrowed from `safecss_filter_attr`, and used here
  // because we only want to match against the value, not the CSS attribute.
  if ( is_array( $gap_value ) ) {
    foreach ( $gap_value as $key => $value ) {
      $gap_value[ $key ] = $value && preg_match( '%[\\\(&=}]|/\*%', $value ) ? null : $value;
    }
  } else {
    $gap_value = $gap_value && preg_match( '%[\\\(&=}]|/\*%', $gap_value ) ? null : $gap_value;
  }

  $fallback_gap_value = _wp_array_get( $block_type->supports, array( 'spacing', 'blockGap', '__experimentalDefault' ), '0.5em' );

  // If a block's block.json skips serialization for spacing or spacing.blockGap,
  // don't apply the user-defined value to the styles.
  $should_skip_gap_serialization = wp_should_skip_block_supports_serialization( $block_type, 'spacing', 'blockGap' );
  $style                         = wp_get_layout_style( ".$container_class", $used_layout, $has_block_gap_support, $gap_value, $should_skip_gap_serialization, $fallback_gap_value );
  // This assumes the hook only applies to blocks with a single wrapper.
  // I think this is a reasonable limitation for that particular hook.
  $content = preg_replace(
    '/' . preg_quote( 'class="', '/' ) . '/',
    'class="' . esc_attr( implode( ' ', $class_names ) ) . ' ',
    $block_content,
    1
  );

  wp_enqueue_block_support_styles( $style );

  return $content;
}
 

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