153 lines
		
	
	
		
			4.5 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			153 lines
		
	
	
		
			4.5 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
| <?php
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| /**
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|  * Block level presets support.
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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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| /**
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|  * Get the class name used on block level presets.
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|  *
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|  * @internal
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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 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_presets_class_name( $block ) {
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| 	return 'wp-settings-' . md5( serialize( $block ) );
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| }
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| 
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| /**
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|  * Update the block content with block level presets class name.
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|  *
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|  * @internal
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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_add_block_level_presets_class( $block_content, $block ) {
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| 	if ( ! $block_content ) {
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| 		return $block_content;
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| 	}
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| 
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| 	// return early if the block doesn't have support for settings.
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| 	$block_type = WP_Block_Type_Registry::get_instance()->get_registered( $block['blockName'] );
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| 	if ( ! block_has_support( $block_type, '__experimentalSettings', false ) ) {
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| 		return $block_content;
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| 	}
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| 
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| 	// return early if no settings are found on the block attributes.
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| 	$block_settings = isset( $block['attrs']['settings'] ) ? $block['attrs']['settings'] : null;
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| 	if ( empty( $block_settings ) ) {
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| 		return $block_content;
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| 	}
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| 
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| 	// Like the layout hook this assumes the hook only applies to blocks with a single wrapper.
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| 	// Add the class name to the first element, presuming it's the wrapper, if it exists.
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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_presets_class_name( $block ) );
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| 	}
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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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|  * Render the block level presets stylesheet.
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|  *
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|  * @internal
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|  *
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|  * @since 6.2.0
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|  * @since 6.3.0 Updated preset styles to use Selectors API.
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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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|  *
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|  * @return null
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|  */
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| function _wp_add_block_level_preset_styles( $pre_render, $block ) {
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| 	// Return early if the block has not support for descendent block styles.
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| 	$block_type = WP_Block_Type_Registry::get_instance()->get_registered( $block['blockName'] );
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| 	if ( ! block_has_support( $block_type, '__experimentalSettings', false ) ) {
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| 		return null;
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| 	}
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| 
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| 	// return early if no settings are found on the block attributes.
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| 	$block_settings = isset( $block['attrs']['settings'] ) ? $block['attrs']['settings'] : null;
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| 	if ( empty( $block_settings ) ) {
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| 		return null;
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| 	}
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| 
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| 	$class_name = '.' . _wp_get_presets_class_name( $block );
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| 
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| 	// the root selector for preset variables needs to target every possible block selector
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| 	// in order for the general setting to override any bock specific setting of a parent block or
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| 	// the site root.
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| 	$variables_root_selector = '*,[class*="wp-block"]';
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| 	$registry                = WP_Block_Type_Registry::get_instance();
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| 	$blocks                  = $registry->get_all_registered();
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| 	foreach ( $blocks as $block_type ) {
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| 		/*
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| 		 * We only want to append selectors for blocks using custom selectors
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| 		 * i.e. not `wp-block-<name>`.
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| 		 */
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| 		$has_custom_selector =
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| 			( isset( $block_type->supports['__experimentalSelector'] ) && is_string( $block_type->supports['__experimentalSelector'] ) ) ||
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| 			( isset( $block_type->selectors['root'] ) && is_string( $block_type->selectors['root'] ) );
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| 
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| 		if ( $has_custom_selector ) {
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| 			$variables_root_selector .= ',' . wp_get_block_css_selector( $block_type );
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| 		}
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| 	}
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| 	$variables_root_selector = WP_Theme_JSON::scope_selector( $class_name, $variables_root_selector );
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| 
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| 	// Remove any potentially unsafe styles.
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| 	$theme_json_shape  = WP_Theme_JSON::remove_insecure_properties(
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| 		array(
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| 			'version'  => WP_Theme_JSON::LATEST_SCHEMA,
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| 			'settings' => $block_settings,
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| 		)
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| 	);
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| 	$theme_json_object = new WP_Theme_JSON( $theme_json_shape );
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| 
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| 	$styles = '';
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| 
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| 	// include preset css variables declaration on the stylesheet.
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| 	$styles .= $theme_json_object->get_stylesheet(
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| 		array( 'variables' ),
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| 		null,
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| 		array(
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| 			'root_selector' => $variables_root_selector,
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| 			'scope'         => $class_name,
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| 		)
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| 	);
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| 
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| 	// include preset css classes on the the stylesheet.
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| 	$styles .= $theme_json_object->get_stylesheet(
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| 		array( 'presets' ),
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| 		null,
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| 		array(
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| 			'root_selector' => $class_name . ',' . $class_name . ' *',
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| 			'scope'         => $class_name,
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| 		)
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| 	);
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| 
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| 	if ( ! empty( $styles ) ) {
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| 		wp_enqueue_block_support_styles( $styles );
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| 	}
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| 
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| 	return null;
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| }
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| 
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| add_filter( 'render_block', '_wp_add_block_level_presets_class', 10, 2 );
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| add_filter( 'pre_render_block', '_wp_add_block_level_preset_styles', 10, 2 );
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