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<?php |
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/** |
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* Block and style registration functions. |
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* |
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* @package gutenberg |
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*/ |
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|
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/** |
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* Substitutes the implementation of a core-registered block type, if exists, |
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* with the built result from the plugin. |
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*/ |
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function gutenberg_reregister_core_block_types() { |
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// Blocks directory may not exist if working from a fresh clone. |
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$blocks_dirs = array( |
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__DIR__ . '/../build/block-library/blocks/' => array( |
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'block_folders' => array( |
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'audio', |
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'button', |
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'buttons', |
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'freeform', |
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'code', |
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'column', |
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'columns', |
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'file', |
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'gallery', |
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'group', |
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'heading', |
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'html', |
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'image', |
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'list', |
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'media-text', |
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'missing', |
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'more', |
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'navigation-link', |
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'nextpage', |
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'paragraph', |
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'preformatted', |
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'pullquote', |
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'quote', |
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'separator', |
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'social-links', |
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'spacer', |
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'subhead', |
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'table', |
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'text-columns', |
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'verse', |
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'video', |
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'embed', |
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), |
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'block_names' => array_merge( |
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array( |
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'archives.php' => 'core/archives', |
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'block.php' => 'core/block', |
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'calendar.php' => 'core/calendar', |
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'categories.php' => 'core/categories', |
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'cover.php' => 'core/cover', |
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'latest-comments.php' => 'core/latest-comments', |
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'latest-posts.php' => 'core/latest-posts', |
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'navigation.php' => 'core/navigation', |
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'navigation-link.php' => 'core/navigation-link', |
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'rss.php' => 'core/rss', |
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'search.php' => 'core/search', |
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'shortcode.php' => 'core/shortcode', |
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'social-link.php' => 'core/social-link', |
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'tag-cloud.php' => 'core/tag-cloud', |
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'page-list.php' => 'core/page-list', |
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'post-author.php' => 'core/post-author', |
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'post-comment.php' => 'core/post-comment', |
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'post-comment-author.php' => 'core/post-comment-author', |
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'post-comment-content.php' => 'core/post-comment-content', |
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'post-comment-date.php' => 'core/post-comment-date', |
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'post-comments.php' => 'core/post-comments', |
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'post-comments-count.php' => 'core/post-comments-count', |
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'post-comments-form.php' => 'core/post-comments-form', |
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'post-content.php' => 'core/post-content', |
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'post-date.php' => 'core/post-date', |
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'post-excerpt.php' => 'core/post-excerpt', |
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'post-featured-image.php' => 'core/post-featured-image', |
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'post-hierarchical-terms.php' => 'core/post-hierarchical-terms', |
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'post-navigation-link.php' => 'core/post-navigation-link', |
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'post-tags.php' => 'core/post-tags', |
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'post-title.php' => 'core/post-title', |
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'query.php' => 'core/query', |
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'query-loop.php' => 'core/query-loop', |
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'query-pagination.php' => 'core/query-pagination', |
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'query-pagination-next.php' => 'core/query-pagination-next', |
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'query-pagination-numbers.php' => 'core/query-pagination-numbers', |
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'query-pagination-previous.php' => 'core/query-pagination-previous', |
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'site-logo.php' => 'core/site-logo', |
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'site-tagline.php' => 'core/site-tagline', |
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'site-title.php' => 'core/site-title', |
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'template-part.php' => 'core/template-part', |
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) |
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), |
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), |
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__DIR__ . '/../build/edit-widgets/blocks/' => array( |
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'block_folders' => array( |
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'legacy-widget', |
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'widget-area', |
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), |
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'block_names' => array( |
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'legacy-widget.php' => 'core/legacy-widget', |
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'widget-area.php' => 'core/widget-area', |
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), |
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), |
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); |
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foreach ( $blocks_dirs as $blocks_dir => $details ) { |
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$block_folders = $details['block_folders']; |
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$block_names = $details['block_names']; |
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|
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$registry = WP_Block_Type_Registry::get_instance(); |
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|
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foreach ( $block_folders as $folder_name ) { |
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$block_json_file = $blocks_dir . $folder_name . '/block.json'; |
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|
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// Ideally, all paths to block metadata files should be listed in |
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// WordPress core. In this place we should rather use filter |
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// to replace paths with overrides defined by the plugin. |
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$metadata = json_decode( file_get_contents( $block_json_file ), true ); |
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if ( ! is_array( $metadata ) || ! $metadata['name'] ) { |
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return false; |
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} |
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|
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if ( $registry->is_registered( $metadata['name'] ) ) { |
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$registry->unregister( $metadata['name'] ); |
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} |
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|
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gutenberg_register_core_block_styles( $folder_name ); |
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register_block_type_from_metadata( $block_json_file ); |
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} |
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|
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foreach ( $block_names as $file => $block_names ) { |
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if ( ! file_exists( $blocks_dir . $file ) ) { |
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return; |
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} |
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|
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if ( is_string( $block_names ) ) { |
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if ( $registry->is_registered( $block_names ) ) { |
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$registry->unregister( $block_names ); |
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} |
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gutenberg_register_core_block_styles( $block_names ); |
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} elseif ( is_array( $block_names ) ) { |
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foreach ( $block_names as $block_name ) { |
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if ( $registry->is_registered( $block_name ) ) { |
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$registry->unregister( $block_name ); |
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} |
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gutenberg_register_core_block_styles( $block_name ); |
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} |
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} |
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|
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require $blocks_dir . $file; |
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} |
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} |
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} |
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|
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add_action( 'init', 'gutenberg_reregister_core_block_types' ); |
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|
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/** |
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* Registers block styles for a core block. |
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* |
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* @param string $block_name The block-name. |
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* |
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* @return void |
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*/ |
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function gutenberg_register_core_block_styles( $block_name ) { |
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if ( ! gutenberg_should_load_separate_block_styles() ) { |
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return; |
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} |
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|
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$block_name = str_replace( 'core/', '', $block_name ); |
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|
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$style_path = "build/block-library/blocks/$block_name/style.css"; |
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$editor_style_path = "build/block-library/blocks/$block_name/style-editor.css"; |
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|
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if ( file_exists( gutenberg_dir_path() . $style_path ) ) { |
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wp_register_style( |
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"wp-block-{$block_name}", |
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gutenberg_url( $style_path ), |
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array(), |
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filemtime( gutenberg_dir_path() . $style_path ) |
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); |
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wp_style_add_data( "wp-block-{$block_name}", 'rtl', 'replace' ); |
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|
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// Add a reference to the stylesheet's path to allow calculations for inlining styles in `wp_head`. |
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wp_style_add_data( "wp-block-{$block_name}", 'path', gutenberg_dir_path() . $style_path ); |
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} |
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|
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if ( file_exists( gutenberg_dir_path() . $editor_style_path ) ) { |
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wp_register_style( |
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"wp-block-{$block_name}-editor", |
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gutenberg_url( $editor_style_path ), |
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array(), |
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filemtime( gutenberg_dir_path() . $editor_style_path ) |
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); |
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wp_style_add_data( "wp-block-{$block_name}-editor", 'rtl', 'replace' ); |
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} |
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} |
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|
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/** |
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* Change the way styles get loaded depending on their size. |
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* |
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* Optimizes performance and sustainability of styles by inlining smaller stylesheets. |
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* |
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* @return void |
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*/ |
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function gutenberg_maybe_inline_styles() { |
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|
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$total_inline_limit = 20000; |
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/** |
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* The maximum size of inlined styles in bytes. |
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* |
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* @param int $total_inline_limit The file-size threshold, in bytes. Defaults to 20000. |
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* @return int The file-size threshold, in bytes. |
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*/ |
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$total_inline_limit = apply_filters( 'styles_inline_size_limit', $total_inline_limit ); |
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|
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global $wp_styles; |
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$styles = array(); |
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|
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// Build an array of styles that have a path defined. |
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foreach ( $wp_styles->queue as $handle ) { |
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if ( wp_styles()->get_data( $handle, 'path' ) && file_exists( $wp_styles->registered[ $handle ]->extra['path'] ) ) { |
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$block_styles = false; |
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$styles_size = filesize( $wp_styles->registered[ $handle ]->extra['path'] ); |
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|
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// Minify styles and get their minified size if SCRIPT_DEBUG is not enabled. |
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if ( ! defined( 'SCRIPT_DEBUG' ) || ! SCRIPT_DEBUG ) { |
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// Get the styles and minify them by removing comments & whitespace. |
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$block_styles = gutenberg_get_minified_styles( file_get_contents( $wp_styles->registered[ $handle ]->extra['path'] ) ); |
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// Get the styles size. |
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$styles_size = strlen( $block_styles ); |
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} |
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|
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$styles[] = array( |
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'handle' => $handle, |
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'path' => $wp_styles->registered[ $handle ]->extra['path'], |
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'size' => $styles_size, |
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'css' => $block_styles, |
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); |
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} |
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} |
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|
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if ( ! empty( $styles ) ) { |
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// Reorder styles array based on size. |
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usort( |
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$styles, |
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function( $a, $b ) { |
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return ( $a['size'] <= $b['size'] ) ? -1 : 1; |
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} |
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); |
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|
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/** |
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* The total inlined size. |
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* |
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* On each iteration of the loop, if a style gets added inline the value of this var increases |
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* to reflect the total size of inlined styles. |
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*/ |
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$total_inline_size = 0; |
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|
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// Loop styles. |
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foreach ( $styles as $style ) { |
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|
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// Size check. Since styles are ordered by size, we can break the loop. |
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if ( $total_inline_size + $style['size'] > $total_inline_limit ) { |
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break; |
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} |
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|
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// Get the styles if we don't already have them. |
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$style['css'] = $style['css'] ? $style['css'] : file_get_contents( $style['path'] ); |
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|
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// Set `src` to `false` and add styles inline. |
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$wp_styles->registered[ $style['handle'] ]->src = false; |
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$wp_styles->registered[ $style['handle'] ]->extra['after'][] = $style['css']; |
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|
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// Add the styles size to the $total_inline_size var. |
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$total_inline_size += (int) $style['size']; |
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} |
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} |
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} |
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add_action( 'wp_head', 'gutenberg_maybe_inline_styles', 1 ); |
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|
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/** |
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* Minify styles. |
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* |
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* Removes inline comments and whitespace. |
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* |
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* @param string $styles The styles to be minified. |
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* @return string |
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*/ |
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function gutenberg_get_minified_styles( $styles ) { |
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$re1 = '(?sx)("(?:[^"\\\\]++|\\\\.)*+"|\'(?:[^\'\\\\]++|\\\\.)*+\')|/\\* (?> .*? \\*/ )'; |
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$re2 = '(?six)("(?:[^"\\\\]++|\\\\.)*+"|\'(?:[^\'\\\\]++|\\\\.)*+\')|\\s*+ ; \\s*+ ( } ) \\s*+|\\s*+ ( [*$~^|]?+= | [{};,>~+-] | !important\\b ) \\s*+|( [[(:] ) \\s++|\\s++ ( [])] )|\\s++ ( : ) \\s*+(?!(?>[^{}"\']++|"(?:[^"\\\\]++|\\\\.)*+"|\'(?:[^\'\\\\]++|\\\\.)*+\')*+{)|^ \\s++ | \\s++ \\z|(\\s)\\s+'; |
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|
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$styles = preg_replace( "%$re1%", '$1', $styles ); |
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return preg_replace( "%$re2%", '$1$2$3$4$5$6$7', $styles ); |
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} |
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|
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/** |
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* Complements the implementation of block type `core/social-icon`, whether it |
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* be provided by core or the plugin, with derived block types for each |
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* "service" (WordPress, Twitter, etc.) supported by Social Links. |
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* |
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* This ensures backwards compatibility for any users running the Gutenberg |
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* plugin who have used Social Links prior to their conversion to block |
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* variations. |
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* |
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* This shim is INTENTIONALLY left out of core, as Social Links haven't yet |
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* landed there. |
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* |
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* @see https://github.com/WordPress/gutenberg/pull/19887 |
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*/ |
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function gutenberg_register_legacy_social_link_blocks() { |
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$services = array( |
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'amazon', |
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'bandcamp', |
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'behance', |
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'chain', |
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'codepen', |
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'deviantart', |
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'dribbble', |
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'dropbox', |
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'etsy', |
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'facebook', |
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'feed', |
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'fivehundredpx', |
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'flickr', |
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'foursquare', |
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'goodreads', |
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'google', |
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'github', |
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'instagram', |
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'lastfm', |
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'linkedin', |
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'mail', |
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'mastodon', |
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'meetup', |
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'medium', |
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'pinterest', |
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'pocket', |
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'reddit', |
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'skype', |
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'snapchat', |
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'soundcloud', |
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'spotify', |
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'tumblr', |
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'twitch', |
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'twitter', |
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'vimeo', |
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'vk', |
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'wordpress', |
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'yelp', |
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'youtube', |
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); |
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|
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foreach ( $services as $service ) { |
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register_block_type( |
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'core/social-link-' . $service, |
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array( |
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'category' => 'widgets', |
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'attributes' => array( |
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'url' => array( |
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'type' => 'string', |
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), |
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'service' => array( |
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'type' => 'string', |
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'default' => $service, |
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), |
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'label' => array( |
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'type' => 'string', |
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), |
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), |
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'render_callback' => 'gutenberg_render_block_core_social_link', |
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) |
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); |
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} |
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} |
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|
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add_action( 'init', 'gutenberg_register_legacy_social_link_blocks' ); |
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|
