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block-editor.php (16999B)

---

 <?php
 /**
  * Block Editor API.
  *
  * @package WordPress
  * @subpackage Editor
  * @since 5.8.0
  */
 
 /**
  * Returns the list of default categories for block types.
  *
  * @since 5.8.0
  *
  * @return array[] Array of categories for block types.
  */
 function get_default_block_categories() {
 	return array(
 		array(
 			'slug'  => 'text',
 			'title' => _x( 'Text', 'block category' ),
 			'icon'  => null,
 		),
 		array(
 			'slug'  => 'media',
 			'title' => _x( 'Media', 'block category' ),
 			'icon'  => null,
 		),
 		array(
 			'slug'  => 'design',
 			'title' => _x( 'Design', 'block category' ),
 			'icon'  => null,
 		),
 		array(
 			'slug'  => 'widgets',
 			'title' => _x( 'Widgets', 'block category' ),
 			'icon'  => null,
 		),
 		array(
 			'slug'  => 'theme',
 			'title' => _x( 'Theme', 'block category' ),
 			'icon'  => null,
 		),
 		array(
 			'slug'  => 'embed',
 			'title' => _x( 'Embeds', 'block category' ),
 			'icon'  => null,
 		),
 		array(
 			'slug'  => 'reusable',
 			'title' => _x( 'Reusable Blocks', 'block category' ),
 			'icon'  => null,
 		),
 	);
 }
 
 /**
  * Returns all the categories for block types that will be shown in the block editor.
  *
  * @since 5.0.0
  * @since 5.8.0 It is possible to pass the block editor context as param.
  *
  * @param WP_Post|WP_Block_Editor_Context $post_or_block_editor_context The current post object or
  *                                                                      the block editor context.
  *
  * @return array[] Array of categories for block types.
  */
 function get_block_categories( $post_or_block_editor_context ) {
 	$block_categories     = get_default_block_categories();
 	$block_editor_context = $post_or_block_editor_context instanceof WP_Post ?
 		new WP_Block_Editor_Context(
 			array(
 				'post' => $post_or_block_editor_context,
 			)
 		) : $post_or_block_editor_context;
 
 	/**
 	 * Filters the default array of categories for block types.
 	 *
 	 * @since 5.8.0
 	 *
 	 * @param array[]                 $block_categories     Array of categories for block types.
 	 * @param WP_Block_Editor_Context $block_editor_context The current block editor context.
 	 */
 	$block_categories = apply_filters( 'block_categories_all', $block_categories, $block_editor_context );
 	if ( ! empty( $block_editor_context->post ) ) {
 		$post = $block_editor_context->post;
 
 		/**
 		 * Filters the default array of categories for block types.
 		 *
 		 * @since 5.0.0
 		 * @deprecated 5.8.0 Use the {@see 'block_categories_all'} filter instead.
 		 *
 		 * @param array[] $block_categories Array of categories for block types.
 		 * @param WP_Post $post             Post being loaded.
 		 */
 		$block_categories = apply_filters_deprecated( 'block_categories', array( $block_categories, $post ), '5.8.0', 'block_categories_all' );
 	}
 
 	return $block_categories;
 }
 
 /**
  * Gets the list of allowed block types to use in the block editor.
  *
  * @since 5.8.0
  *
  * @param WP_Block_Editor_Context $block_editor_context The current block editor context.
  *
  * @return bool|array Array of block type slugs, or boolean to enable/disable all.
  */
 function get_allowed_block_types( $block_editor_context ) {
 	$allowed_block_types = true;
 
 	/**
 	 * Filters the allowed block types for all editor types.
 	 *
 	 * @since 5.8.0
 	 *
 	 * @param bool|array              $allowed_block_types  Array of block type slugs, or boolean to enable/disable all.
 	 *                                                      Default true (all registered block types supported).
 	 * @param WP_Block_Editor_Context $block_editor_context The current block editor context.
 	 */
 	$allowed_block_types = apply_filters( 'allowed_block_types_all', $allowed_block_types, $block_editor_context );
 	if ( ! empty( $block_editor_context->post ) ) {
 		$post = $block_editor_context->post;
 
 		/**
 		 * Filters the allowed block types for the editor.
 		 *
 		 * @since 5.0.0
 		 * @deprecated 5.8.0 Use the {@see 'allowed_block_types_all'} filter instead.
 		 *
 		 * @param bool|array $allowed_block_types Array of block type slugs, or boolean to enable/disable all.
 		 *                                        Default true (all registered block types supported)
 		 * @param WP_Post    $post                The post resource data.
 		 */
 		$allowed_block_types = apply_filters_deprecated( 'allowed_block_types', array( $allowed_block_types, $post ), '5.8.0', 'allowed_block_types_all' );
 	}
 
 	return $allowed_block_types;
 }
 
 /**
  * Returns the default block editor settings.
  *
  * @since 5.8.0
  *
  * @return array The default block editor settings.
  */
 function get_default_block_editor_settings() {
 	// Media settings.
 	$max_upload_size = wp_max_upload_size();
 	if ( ! $max_upload_size ) {
 		$max_upload_size = 0;
 	}
 
 	/** This filter is documented in wp-admin/includes/media.php */
 	$image_size_names = apply_filters(
 		'image_size_names_choose',
 		array(
 			'thumbnail' => __( 'Thumbnail' ),
 			'medium'    => __( 'Medium' ),
 			'large'     => __( 'Large' ),
 			'full'      => __( 'Full Size' ),
 		)
 	);
 
 	$available_image_sizes = array();
 	foreach ( $image_size_names as $image_size_slug => $image_size_name ) {
 		$available_image_sizes[] = array(
 			'slug' => $image_size_slug,
 			'name' => $image_size_name,
 		);
 	}
 
 	$default_size       = get_option( 'image_default_size', 'large' );
 	$image_default_size = in_array( $default_size, array_keys( $image_size_names ), true ) ? $default_size : 'large';
 
 	$image_dimensions = array();
 	$all_sizes        = wp_get_registered_image_subsizes();
 	foreach ( $available_image_sizes as $size ) {
 		$key = $size['slug'];
 		if ( isset( $all_sizes[ $key ] ) ) {
 			$image_dimensions[ $key ] = $all_sizes[ $key ];
 		}
 	}
 
 	$editor_settings = array(
 		'alignWide'              => get_theme_support( 'align-wide' ),
 		'allowedBlockTypes'      => true,
 		'allowedMimeTypes'       => get_allowed_mime_types(),
 		'blockCategories'        => get_default_block_categories(),
 		'disableCustomColors'    => get_theme_support( 'disable-custom-colors' ),
 		'disableCustomFontSizes' => get_theme_support( 'disable-custom-font-sizes' ),
 		'disableCustomGradients' => get_theme_support( 'disable-custom-gradients' ),
 		'enableCustomLineHeight' => get_theme_support( 'custom-line-height' ),
 		'enableCustomSpacing'    => get_theme_support( 'custom-spacing' ),
 		'enableCustomUnits'      => get_theme_support( 'custom-units' ),
 		'isRTL'                  => is_rtl(),
 		'imageDefaultSize'       => $image_default_size,
 		'imageDimensions'        => $image_dimensions,
 		'imageEditing'           => true,
 		'imageSizes'             => $available_image_sizes,
 		'maxUploadFileSize'      => $max_upload_size,
 	);
 
 	// Theme settings.
 	$color_palette = current( (array) get_theme_support( 'editor-color-palette' ) );
 	if ( false !== $color_palette ) {
 		$editor_settings['colors'] = $color_palette;
 	}
 
 	$font_sizes = current( (array) get_theme_support( 'editor-font-sizes' ) );
 	if ( false !== $font_sizes ) {
 		$editor_settings['fontSizes'] = $font_sizes;
 	}
 
 	$gradient_presets = current( (array) get_theme_support( 'editor-gradient-presets' ) );
 	if ( false !== $gradient_presets ) {
 		$editor_settings['gradients'] = $gradient_presets;
 	}
 
 	return $editor_settings;
 }
 
 /**
  * Returns the block editor settings needed to use the Legacy Widget block which
  * is not registered by default.
  *
  * @since 5.8.0
  *
  * @return array Settings to be used with get_block_editor_settings().
  */
 function get_legacy_widget_block_editor_settings() {
 	$editor_settings = array();
 
 	/**
 	 * Filters the list of widget-type IDs that should **not** be offered by the
 	 * Legacy Widget block.
 	 *
 	 * Returning an empty array will make all widgets available.
 	 *
 	 * @since 5.8.0
 	 *
 	 * @param array $widgets An array of excluded widget-type IDs.
 	 */
 	$editor_settings['widgetTypesToHideFromLegacyWidgetBlock'] = apply_filters(
 		'widget_types_to_hide_from_legacy_widget_block',
 		array(
 			'pages',
 			'calendar',
 			'archives',
 			'media_audio',
 			'media_image',
 			'media_gallery',
 			'media_video',
 			'search',
 			'text',
 			'categories',
 			'recent-posts',
 			'recent-comments',
 			'rss',
 			'tag_cloud',
 			'custom_html',
 			'block',
 		)
 	);
 
 	return $editor_settings;
 }
 
 /**
  * Returns the contextualized block editor settings for a selected editor context.
  *
  * @since 5.8.0
  *
  * @param array                   $custom_settings      Custom settings to use with the given editor type.
  * @param WP_Block_Editor_Context $block_editor_context The current block editor context.
  *
  * @return array The contextualized block editor settings.
  */
 function get_block_editor_settings( array $custom_settings, $block_editor_context ) {
 	$editor_settings = array_merge(
 		get_default_block_editor_settings(),
 		array(
 			'allowedBlockTypes' => get_allowed_block_types( $block_editor_context ),
 			'blockCategories'   => get_block_categories( $block_editor_context ),
 		),
 		$custom_settings
 	);
 
 	$theme_json = WP_Theme_JSON_Resolver::get_merged_data( $editor_settings );
 
 	if ( WP_Theme_JSON_Resolver::theme_has_support() ) {
 		$editor_settings['styles'][] = array(
 			'css'            => $theme_json->get_stylesheet( 'block_styles' ),
 			'__unstableType' => 'globalStyles',
 		);
 		$editor_settings['styles'][] = array(
 			'css'                     => $theme_json->get_stylesheet( 'css_variables' ),
 			'__experimentalNoWrapper' => true,
 			'__unstableType'          => 'globalStyles',
 		);
 	}
 
 	$editor_settings['__experimentalFeatures'] = $theme_json->get_settings();
 	// These settings may need to be updated based on data coming from theme.json sources.
 	if ( isset( $editor_settings['__experimentalFeatures']['color']['palette'] ) ) {
 		$colors_by_origin          = $editor_settings['__experimentalFeatures']['color']['palette'];
 		$editor_settings['colors'] = isset( $colors_by_origin['user'] ) ?
 			$colors_by_origin['user'] : (
 				isset( $colors_by_origin['theme'] ) ?
 					$colors_by_origin['theme'] :
 					$colors_by_origin['core']
 			);
 	}
 	if ( isset( $editor_settings['__experimentalFeatures']['color']['gradients'] ) ) {
 		$gradients_by_origin          = $editor_settings['__experimentalFeatures']['color']['gradients'];
 		$editor_settings['gradients'] = isset( $gradients_by_origin['user'] ) ?
 			$gradients_by_origin['user'] : (
 				isset( $gradients_by_origin['theme'] ) ?
 					$gradients_by_origin['theme'] :
 					$gradients_by_origin['core']
 			);
 	}
 	if ( isset( $editor_settings['__experimentalFeatures']['typography']['fontSizes'] ) ) {
 		$font_sizes_by_origin         = $editor_settings['__experimentalFeatures']['typography']['fontSizes'];
 		$editor_settings['fontSizes'] = isset( $font_sizes_by_origin['user'] ) ?
 			$font_sizes_by_origin['user'] : (
 				isset( $font_sizes_by_origin['theme'] ) ?
 					$font_sizes_by_origin['theme'] :
 					$font_sizes_by_origin['core']
 			);
 	}
 	if ( isset( $editor_settings['__experimentalFeatures']['color']['custom'] ) ) {
 		$editor_settings['disableCustomColors'] = ! $editor_settings['__experimentalFeatures']['color']['custom'];
 		unset( $editor_settings['__experimentalFeatures']['color']['custom'] );
 	}
 	if ( isset( $editor_settings['__experimentalFeatures']['color']['customGradient'] ) ) {
 		$editor_settings['disableCustomGradients'] = ! $editor_settings['__experimentalFeatures']['color']['customGradient'];
 		unset( $editor_settings['__experimentalFeatures']['color']['customGradient'] );
 	}
 	if ( isset( $editor_settings['__experimentalFeatures']['typography']['customFontSize'] ) ) {
 		$editor_settings['disableCustomFontSizes'] = ! $editor_settings['__experimentalFeatures']['typography']['customFontSize'];
 		unset( $editor_settings['__experimentalFeatures']['typography']['customFontSize'] );
 	}
 	if ( isset( $editor_settings['__experimentalFeatures']['typography']['customLineHeight'] ) ) {
 		$editor_settings['enableCustomLineHeight'] = $editor_settings['__experimentalFeatures']['typography']['customLineHeight'];
 		unset( $editor_settings['__experimentalFeatures']['typography']['customLineHeight'] );
 	}
 	if ( isset( $editor_settings['__experimentalFeatures']['spacing']['units'] ) ) {
 		$editor_settings['enableCustomUnits'] = $editor_settings['__experimentalFeatures']['spacing']['units'];
 		unset( $editor_settings['__experimentalFeatures']['spacing']['units'] );
 	}
 	if ( isset( $editor_settings['__experimentalFeatures']['spacing']['customPadding'] ) ) {
 		$editor_settings['enableCustomSpacing'] = $editor_settings['__experimentalFeatures']['spacing']['customPadding'];
 		unset( $editor_settings['__experimentalFeatures']['spacing']['customPadding'] );
 	}
 
 	/**
 	 * Filters the settings to pass to the block editor for all editor type.
 	 *
 	 * @since 5.8.0
 	 *
 	 * @param array                   $editor_settings      Default editor settings.
 	 * @param WP_Block_Editor_Context $block_editor_context The current block editor context.
 	 */
 	$editor_settings = apply_filters( 'block_editor_settings_all', $editor_settings, $block_editor_context );
 	if ( ! empty( $block_editor_context->post ) ) {
 		$post = $block_editor_context->post;
 
 		/**
 		 * Filters the settings to pass to the block editor.
 		 *
 		 * @since 5.0.0
 		 * @deprecated 5.8.0 Use the {@see 'block_editor_settings_all'} filter instead.
 		 *
 		 * @param array   $editor_settings Default editor settings.
 		 * @param WP_Post $post            Post being edited.
 		 */
 		$editor_settings = apply_filters_deprecated( 'block_editor_settings', array( $editor_settings, $post ), '5.8.0', 'block_editor_settings_all' );
 	}
 
 	return $editor_settings;
 }
 
 /**
  * Preloads common data used with the block editor by specifying an array of
  * REST API paths that will be preloaded for a given block editor context.
  *
  * @since 5.8.0
  *
  * @global WP_Post $post Global post object.
  *
  * @param array                   $preload_paths        List of paths to preload.
  * @param WP_Block_Editor_Context $block_editor_context The current block editor context.
  *
  * @return void
  */
 function block_editor_rest_api_preload( array $preload_paths, $block_editor_context ) {
 	global $post;
 
 	/**
 	 * Filters the array of REST API paths that will be used to preloaded common data for the block editor.
 	 *
 	 * @since 5.8.0
 	 *
 	 * @param string[] $preload_paths Array of paths to preload.
 	 */
 	$preload_paths = apply_filters( 'block_editor_rest_api_preload_paths', $preload_paths, $block_editor_context );
 	if ( ! empty( $block_editor_context->post ) ) {
 		$selected_post = $block_editor_context->post;
 
 		/**
 		 * Filters the array of paths that will be preloaded.
 		 *
 		 * Preload common data by specifying an array of REST API paths that will be preloaded.
 		 *
 		 * @since 5.0.0
 		 * @deprecated 5.8.0 Use the {@see 'block_editor_rest_api_preload_paths'} filter instead.
 		 *
 		 * @param string[] $preload_paths Array of paths to preload.
 		 * @param WP_Post  $selected_post Post being edited.
 		 */
 		$preload_paths = apply_filters_deprecated( 'block_editor_preload_paths', array( $preload_paths, $selected_post ), '5.8.0', 'block_editor_rest_api_preload_paths' );
 	}
 
 	if ( empty( $preload_paths ) ) {
 		return;
 	}
 
 	/*
 	 * Ensure the global $post remains the same after API data is preloaded.
 	 * Because API preloading can call the_content and other filters, plugins
 	 * can unexpectedly modify $post.
 	 */
 	$backup_global_post = ! empty( $post ) ? clone $post : $post;
 
 	$preload_data = array_reduce(
 		$preload_paths,
 		'rest_preload_api_request',
 		array()
 	);
 
 	// Restore the global $post as it was before API preloading.
 	$post = $backup_global_post;
 
 	wp_add_inline_script(
 		'wp-api-fetch',
 		sprintf(
 			'wp.apiFetch.use( wp.apiFetch.createPreloadingMiddleware( %s ) );',
 			wp_json_encode( $preload_data )
 		),
 		'after'
 	);
 }
 
 /**
  * Creates an array of theme styles to load into the block editor.
  *
  * @since 5.8.0
  *
  * @global array $editor_styles
  *
  * @return array An array of theme styles for the block editor. Includes default font family
  *               style and theme stylesheets.
  */
 function get_block_editor_theme_styles() {
 	global $editor_styles;
 
 	if ( ! WP_Theme_JSON_Resolver::theme_has_support() ) {
 		$styles = array(
 			array(
 				'css'            => 'body { font-family: -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen-Sans,Ubuntu,Cantarell,"Helvetica Neue",sans-serif }',
 				'__unstableType' => 'core',
 			),
 		);
 	} else {
 		$styles = array();
 	}
 
 	if ( $editor_styles && current_theme_supports( 'editor-styles' ) ) {
 		foreach ( $editor_styles as $style ) {
 			if ( preg_match( '~^(https?:)?//~', $style ) ) {
 				$response = wp_remote_get( $style );
 				if ( ! is_wp_error( $response ) ) {
 					$styles[] = array(
 						'css'            => wp_remote_retrieve_body( $response ),
 						'__unstableType' => 'theme',
 					);
 				}
 			} else {
 				$file = get_theme_file_path( $style );
 				if ( is_file( $file ) ) {
 					$styles[] = array(
 						'css'            => file_get_contents( $file ),
 						'baseURL'        => get_theme_file_uri( $style ),
 						'__unstableType' => 'theme',
 					);
 				}
 			}
 		}
 	}
 
 	return $styles;
 }