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EDIT :: elements.php

<?php /** * Elements styles block support. * * @package WordPress * @since 5.8.0 */ /** * Gets the elements class names. * * @since 6.0.0 * @access private * * @param array $block Block object. * @return string The unique class name. */ function wp_get_elements_class_name( $block ) { return 'wp-elements-' . md5( serialize( $block ) ); } /** * Updates the block content with elements class names. * * @since 5.8.0 * @since 6.4.0 Added support for button and heading element styling. * @access private * * @param string $block_content Rendered block content. * @param array $block Block object. * @return string Filtered block content. */ function wp_render_elements_support( $block_content, $block ) { if ( ! $block_content || ! isset( $block['attrs']['style']['elements'] ) ) { return $block_content; } $block_type = WP_Block_Type_Registry::get_instance()->get_registered( $block['blockName'] ); if ( ! $block_type ) { return $block_content; } $element_color_properties = array( 'button' => array( 'skip' => wp_should_skip_block_supports_serialization( $block_type, 'color', 'button' ), 'paths' => array( array( 'button', 'color', 'text' ), array( 'button', 'color', 'background' ), array( 'button', 'color', 'gradient' ), ), ), 'link' => array( 'skip' => wp_should_skip_block_supports_serialization( $block_type, 'color', 'link' ), 'paths' => array( array( 'link', 'color', 'text' ), array( 'link', ':hover', 'color', 'text' ), ), ), 'heading' => array( 'skip' => wp_should_skip_block_supports_serialization( $block_type, 'color', 'heading' ), 'paths' => array( array( 'heading', 'color', 'text' ), array( 'heading', 'color', 'background' ), array( 'heading', 'color', 'gradient' ), array( 'h1', 'color', 'text' ), array( 'h1', 'color', 'background' ), array( 'h1', 'color', 'gradient' ), array( 'h2', 'color', 'text' ), array( 'h2', 'color', 'background' ), array( 'h2', 'color', 'gradient' ), array( 'h3', 'color', 'text' ), array( 'h3', 'color', 'background' ), array( 'h3', 'color', 'gradient' ), array( 'h4', 'color', 'text' ), array( 'h4', 'color', 'background' ), array( 'h4', 'color', 'gradient' ), array( 'h5', 'color', 'text' ), array( 'h5', 'color', 'background' ), array( 'h5', 'color', 'gradient' ), array( 'h6', 'color', 'text' ), array( 'h6', 'color', 'background' ), array( 'h6', 'color', 'gradient' ), ), ), ); $skip_all_element_color_serialization = $element_color_properties['button']['skip'] && $element_color_properties['link']['skip'] && $element_color_properties['heading']['skip']; if ( $skip_all_element_color_serialization ) { return $block_content; } $elements_style_attributes = $block['attrs']['style']['elements']; foreach ( $element_color_properties as $element_config ) { if ( $element_config['skip'] ) { continue; } foreach ( $element_config['paths'] as $path ) { if ( null !== _wp_array_get( $elements_style_attributes, $path, null ) ) { /* * It only takes a single custom attribute to require that the custom * class name be added to the block, so once one is found there's no * need to continue looking for others. * * As is done with the layout hook, this code assumes that the block * contains a single wrapper and that it's the first element in the * rendered output. That first element, if it exists, gets the class. */ $tags = new WP_HTML_Tag_Processor( $block_content ); if ( $tags->next_tag() ) { $tags->add_class( wp_get_elements_class_name( $block ) ); } return $tags->get_updated_html(); } } } // If no custom attributes were found then there's nothing to modify. return $block_content; } /** * Renders the elements stylesheet. * * In the case of nested blocks we want the parent element styles to be rendered before their descendants. * This solves the issue of an element (e.g.: link color) being styled in both the parent and a descendant: * we want the descendant style to take priority, and this is done by loading it after, in DOM order. * * @since 6.0.0 * @since 6.1.0 Implemented the style engine to generate CSS and classnames. * @access private * * @param string|null $pre_render The pre-rendered content. Default null. * @param array $block The block being rendered. * @return null */ function wp_render_elements_support_styles( $pre_render, $block ) { $block_type = WP_Block_Type_Registry::get_instance()->get_registered( $block['blockName'] ); $element_block_styles = isset( $block['attrs']['style']['elements'] ) ? $block['attrs']['style']['elements'] : null; if ( ! $element_block_styles ) { return null; } $skip_link_color_serialization = wp_should_skip_block_supports_serialization( $block_type, 'color', 'link' ); $skip_heading_color_serialization = wp_should_skip_block_supports_serialization( $block_type, 'color', 'heading' ); $skip_button_color_serialization = wp_should_skip_block_supports_serialization( $block_type, 'color', 'button' ); $skips_all_element_color_serialization = $skip_link_color_serialization && $skip_heading_color_serialization && $skip_button_color_serialization; if ( $skips_all_element_color_serialization ) { return null; } $class_name = wp_get_elements_class_name( $block ); $element_types = array( 'button' => array( 'selector' => ".$class_name .wp-element-button, .$class_name .wp-block-button__link", 'skip' => $skip_button_color_serialization, ), 'link' => array( 'selector' => ".$class_name a", 'hover_selector' => ".$class_name a:hover", 'skip' => $skip_link_color_serialization, ), 'heading' => array( 'selector' => ".$class_name h1, .$class_name h2, .$class_name h3, .$class_name h4, .$class_name h5, .$class_name h6", 'skip' => $skip_heading_color_serialization, 'elements' => array( 'h1', 'h2', 'h3', 'h4', 'h5', 'h6' ), ), ); foreach ( $element_types as $element_type => $element_config ) { if ( $element_config['skip'] ) { continue; } $element_style_object = isset( $element_block_styles[ $element_type ] ) ? $element_block_styles[ $element_type ] : null; // Process primary element type styles. if ( $element_style_object ) { wp_style_engine_get_styles( $element_style_object, array( 'selector' => $element_config['selector'], 'context' => 'block-supports', ) ); if ( isset( $element_style_object[':hover'] ) ) { wp_style_engine_get_styles( $element_style_object[':hover'], array( 'selector' => $element_config['hover_selector'], 'context' => 'block-supports', ) ); } } // Process related elements e.g. h1-h6 for headings. if ( isset( $element_config['elements'] ) ) { foreach ( $element_config['elements'] as $element ) { $element_style_object = isset( $element_block_styles[ $element ] ) ? $element_block_styles[ $element ] : null; if ( $element_style_object ) { wp_style_engine_get_styles( $element_style_object, array( 'selector' => ".$class_name $element", 'context' => 'block-supports', ) ); } } } } return null; } add_filter( 'render_block', 'wp_render_elements_support', 10, 2 ); add_filter( 'pre_render_block', 'wp_render_elements_support_styles', 10, 2 );

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