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