JezK
Edit File: position.php
<?php /** * Position block support flag. * * @package WordPress * @since 6.2.0 */ /** * Registers the style block attribute for block types that support it. * * @since 6.2.0 * @access private * * @param WP_Block_Type $block_type Block Type. */ function wp_register_position_support( $block_type ) { $has_position_support = block_has_support( $block_type, 'position', false ); // Set up attributes and styles within that if needed. if ( ! $block_type->attributes ) { $block_type->attributes = array(); } if ( $has_position_support && ! array_key_exists( 'style', $block_type->attributes ) ) { $block_type->attributes['style'] = array( 'type' => 'object', ); } } /** * Renders position styles to the block wrapper. * * @since 6.2.0 * @access private * * @param string $block_content Rendered block content. * @param array $block Block object. * @return string Filtered block content. */ function wp_render_position_support( $block_content, $block ) { $block_type = WP_Block_Type_Registry::get_instance()->get_registered( $block['blockName'] ); $has_position_support = block_has_support( $block_type, 'position', false ); if ( ! $has_position_support || empty( $block['attrs']['style']['position'] ) ) { return $block_content; } $global_settings = wp_get_global_settings(); $theme_has_sticky_support = $global_settings['position']['sticky'] ?? false; $theme_has_fixed_support = $global_settings['position']['fixed'] ?? false; // Only allow output for position types that the theme supports. $allowed_position_types = array(); if ( true === $theme_has_sticky_support ) { $allowed_position_types[] = 'sticky'; } if ( true === $theme_has_fixed_support ) { $allowed_position_types[] = 'fixed'; } $style_attribute = $block['attrs']['style'] ?? null; $class_name = wp_unique_id( 'wp-container-' ); $selector = ".$class_name"; $position_styles = array(); $position_type = $style_attribute['position']['type'] ?? ''; $wrapper_classes = array(); if ( in_array( $position_type, $allowed_position_types, true ) ) { $wrapper_classes[] = $class_name; $wrapper_classes[] = 'is-position-' . $position_type; $sides = array( 'top', 'right', 'bottom', 'left' ); foreach ( $sides as $side ) { $side_value = $style_attribute['position'][ $side ] ?? null; if ( null !== $side_value ) { /* * For fixed or sticky top positions, * ensure the value includes an offset for the logged in admin bar. */ if ( 'top' === $side && ( 'fixed' === $position_type || 'sticky' === $position_type ) ) { // Ensure 0 values can be used in `calc()` calculations. if ( '0' === $side_value || 0 === $side_value ) { $side_value = '0px'; } // Ensure current side value also factors in the height of the logged in admin bar. $side_value = "calc($side_value + var(--wp-admin--admin-bar--position-offset, 0px))"; } $position_styles[] = array( 'selector' => $selector, 'declarations' => array( $side => $side_value, ), ); } } $position_styles[] = array( 'selector' => $selector, 'declarations' => array( 'position' => $position_type, 'z-index' => '10', ), ); } if ( ! empty( $position_styles ) ) { /* * Add to the style engine store to enqueue and render position styles. */ wp_style_engine_get_stylesheet_from_css_rules( $position_styles, array( 'context' => 'block-supports', 'prettify' => false, ) ); // Inject class name to block container markup. $content = new WP_HTML_Tag_Processor( $block_content ); $content->next_tag(); foreach ( $wrapper_classes as $class ) { $content->add_class( $class ); } return (string) $content; } return $block_content; } // Register the block support. WP_Block_Supports::get_instance()->register( 'position', array( 'register_attribute' => 'wp_register_position_support', ) ); add_filter( 'render_block', 'wp_render_position_support', 10, 2 );