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a4aeb71603
These changes fix the selector used by block instance element styles for links so they do not get incorrectly applied to buttons. Props aaronrobertshaw, freewebmentor, mukesh27. Fixes #60557. Built from https://develop.svn.wordpress.org/trunk@57664 git-svn-id: http://core.svn.wordpress.org/trunk@57165 1a063a9b-81f0-0310-95a4-ce76da25c4cd
233 lines
7.4 KiB
PHP
233 lines
7.4 KiB
PHP
<?php
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/**
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* Elements styles block support.
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*
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* @package WordPress
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* @since 5.8.0
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*/
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/**
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* Gets the elements class names.
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*
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* @since 6.0.0
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* @access private
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*
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* @param array $block Block object.
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* @return string The unique class name.
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*/
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function wp_get_elements_class_name( $block ) {
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return 'wp-elements-' . md5( serialize( $block ) );
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}
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/**
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* Updates the block content with elements class names.
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*
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* @since 5.8.0
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* @since 6.4.0 Added support for button and heading element styling.
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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_elements_support( $block_content, $block ) {
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if ( ! $block_content || ! isset( $block['attrs']['style']['elements'] ) ) {
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return $block_content;
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}
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$block_type = WP_Block_Type_Registry::get_instance()->get_registered( $block['blockName'] );
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if ( ! $block_type ) {
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return $block_content;
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}
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$element_color_properties = array(
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'button' => array(
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'skip' => wp_should_skip_block_supports_serialization( $block_type, 'color', 'button' ),
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'paths' => array(
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array( 'button', 'color', 'text' ),
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array( 'button', 'color', 'background' ),
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array( 'button', 'color', 'gradient' ),
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),
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),
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'link' => array(
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'skip' => wp_should_skip_block_supports_serialization( $block_type, 'color', 'link' ),
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'paths' => array(
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array( 'link', 'color', 'text' ),
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array( 'link', ':hover', 'color', 'text' ),
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),
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),
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'heading' => array(
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'skip' => wp_should_skip_block_supports_serialization( $block_type, 'color', 'heading' ),
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'paths' => array(
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array( 'heading', 'color', 'text' ),
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array( 'heading', 'color', 'background' ),
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array( 'heading', 'color', 'gradient' ),
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array( 'h1', 'color', 'text' ),
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array( 'h1', 'color', 'background' ),
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array( 'h1', 'color', 'gradient' ),
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array( 'h2', 'color', 'text' ),
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array( 'h2', 'color', 'background' ),
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array( 'h2', 'color', 'gradient' ),
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array( 'h3', 'color', 'text' ),
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array( 'h3', 'color', 'background' ),
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array( 'h3', 'color', 'gradient' ),
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array( 'h4', 'color', 'text' ),
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array( 'h4', 'color', 'background' ),
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array( 'h4', 'color', 'gradient' ),
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array( 'h5', 'color', 'text' ),
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array( 'h5', 'color', 'background' ),
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array( 'h5', 'color', 'gradient' ),
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array( 'h6', 'color', 'text' ),
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array( 'h6', 'color', 'background' ),
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array( 'h6', 'color', 'gradient' ),
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),
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),
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);
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$skip_all_element_color_serialization = $element_color_properties['button']['skip'] &&
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$element_color_properties['link']['skip'] &&
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$element_color_properties['heading']['skip'];
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if ( $skip_all_element_color_serialization ) {
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return $block_content;
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}
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$elements_style_attributes = $block['attrs']['style']['elements'];
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foreach ( $element_color_properties as $element_config ) {
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if ( $element_config['skip'] ) {
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continue;
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}
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foreach ( $element_config['paths'] as $path ) {
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if ( null !== _wp_array_get( $elements_style_attributes, $path, null ) ) {
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/*
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* It only takes a single custom attribute to require that the custom
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* class name be added to the block, so once one is found there's no
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* need to continue looking for others.
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*
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* As is done with the layout hook, this code assumes that the block
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* contains a single wrapper and that it's the first element in the
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* rendered output. That first element, if it exists, gets the class.
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*/
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$tags = new WP_HTML_Tag_Processor( $block_content );
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if ( $tags->next_tag() ) {
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$tags->add_class( wp_get_elements_class_name( $block ) );
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}
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return $tags->get_updated_html();
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}
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}
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}
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// If no custom attributes were found then there's nothing to modify.
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return $block_content;
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}
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/**
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* Renders the elements stylesheet.
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*
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* In the case of nested blocks we want the parent element styles to be rendered before their descendants.
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* This solves the issue of an element (e.g.: link color) being styled in both the parent and a descendant:
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* we want the descendant style to take priority, and this is done by loading it after, in DOM order.
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*
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* @since 6.0.0
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* @since 6.1.0 Implemented the style engine to generate CSS and classnames.
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* @access private
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*
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* @param string|null $pre_render The pre-rendered content. Default null.
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* @param array $block The block being rendered.
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* @return null
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*/
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function wp_render_elements_support_styles( $pre_render, $block ) {
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$block_type = WP_Block_Type_Registry::get_instance()->get_registered( $block['blockName'] );
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$element_block_styles = isset( $block['attrs']['style']['elements'] ) ? $block['attrs']['style']['elements'] : null;
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if ( ! $element_block_styles ) {
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return null;
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}
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$skip_link_color_serialization = wp_should_skip_block_supports_serialization( $block_type, 'color', 'link' );
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$skip_heading_color_serialization = wp_should_skip_block_supports_serialization( $block_type, 'color', 'heading' );
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$skip_button_color_serialization = wp_should_skip_block_supports_serialization( $block_type, 'color', 'button' );
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$skips_all_element_color_serialization = $skip_link_color_serialization &&
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$skip_heading_color_serialization &&
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$skip_button_color_serialization;
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if ( $skips_all_element_color_serialization ) {
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return null;
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}
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$class_name = wp_get_elements_class_name( $block );
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$element_types = array(
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'button' => array(
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'selector' => ".$class_name .wp-element-button, .$class_name .wp-block-button__link",
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'skip' => $skip_button_color_serialization,
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),
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'link' => array(
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'selector' => ".$class_name a:where(:not(.wp-element-button))",
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'hover_selector' => ".$class_name a:where(:not(.wp-element-button)):hover",
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'skip' => $skip_link_color_serialization,
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),
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'heading' => array(
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'selector' => ".$class_name h1, .$class_name h2, .$class_name h3, .$class_name h4, .$class_name h5, .$class_name h6",
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'skip' => $skip_heading_color_serialization,
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'elements' => array( 'h1', 'h2', 'h3', 'h4', 'h5', 'h6' ),
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),
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);
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foreach ( $element_types as $element_type => $element_config ) {
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if ( $element_config['skip'] ) {
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continue;
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}
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$element_style_object = isset( $element_block_styles[ $element_type ] ) ? $element_block_styles[ $element_type ] : null;
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// Process primary element type styles.
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if ( $element_style_object ) {
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wp_style_engine_get_styles(
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$element_style_object,
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array(
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'selector' => $element_config['selector'],
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'context' => 'block-supports',
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)
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);
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if ( isset( $element_style_object[':hover'] ) ) {
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wp_style_engine_get_styles(
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$element_style_object[':hover'],
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array(
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'selector' => $element_config['hover_selector'],
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'context' => 'block-supports',
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)
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);
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}
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}
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// Process related elements e.g. h1-h6 for headings.
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if ( isset( $element_config['elements'] ) ) {
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foreach ( $element_config['elements'] as $element ) {
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$element_style_object = isset( $element_block_styles[ $element ] )
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? $element_block_styles[ $element ]
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: null;
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if ( $element_style_object ) {
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wp_style_engine_get_styles(
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$element_style_object,
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array(
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'selector' => ".$class_name $element",
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'context' => 'block-supports',
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)
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);
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}
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}
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}
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}
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return null;
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}
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add_filter( 'render_block', 'wp_render_elements_support', 10, 2 );
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add_filter( 'pre_render_block', 'wp_render_elements_support_styles', 10, 2 );
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