Changeset 56044 for trunk/src/wp-includes/blocks/index.php

Timestamp:

06/26/2023 09:15:21 PM (15 months ago)

Author:

spacedmonkey

Message:

Editor: Register core block styles in one place.

Register all core blocks in a new function called register_core_block_style_handles. This mirrors the function wp_default_styles where all core styles are registered in one place. This improves block registration performance, as it avoids expensive file lookups, like realpath in register_block_style_handle. The new function register_core_block_style_handles uses glob to get all css files in the blocks directory. This glob is cached in a transient to save lookups on subsequent requests. The function register_block_style_handle now checks to see if the style handle is already registered before trying to register it again.

Props mukesh27, westonruter, flixos90, joemcgill, spacedmonkey.
Fixes #58528.

File:

• trunk/src/wp-includes/blocks/index.php (modified) (1 diff)

trunk/src/wp-includes/blocks/index.php

@@ -12 +12 @@
 require BLOCKS_PATH . 'widget-group.php';
 require BLOCKS_PATH . 'require-dynamic-blocks.php';
+
+/**
+ * Registers core block style handles.
+ *
+ * While {@see register_block_style_handle()} is typically used for that, the way it is
+ * implemented is inefficient for core block styles. Registering those style handles here
+ * avoids unnecessary logic and filesystem lookups in the other function.
+ *
+ * @since 6.3.0
+ */
+function register_core_block_style_handles() {
+    if ( ! wp_should_load_separate_core_block_assets() ) {
+        return;
+    }
+
+    static $core_blocks_meta;
+    if ( ! $core_blocks_meta ) {
+        $core_blocks_meta = require ABSPATH . WPINC . '/blocks/blocks-json.php';
+    }
+
+    $includes_url  = includes_url();
+    $includes_path = ABSPATH . WPINC . '/';
+    $suffix        = wp_scripts_get_suffix();
+    $wp_styles     = wp_styles();
+    $style_fields  = array(
+        'style'       => 'style',
+        'editorStyle' => 'editor',
+    );
+
+    /*
+     * Ignore transient cache when the development mode is set to 'core'. Why? To avoid interfering with
+     * the core developer's workflow.
+     */
+    if ( 'core' !== wp_get_development_mode() ) {
+        $transient_name = 'wp_core_block_css_files';
+        $files          = get_transient( $transient_name );
+        if ( ! $files ) {
+            $files = glob( __DIR__ . '/**/**.css' );
+            set_transient( $transient_name, $files );
+        }
+    } else {
+        $files = glob( __DIR__ . '/**/**.css' );
+    }
+
+    foreach ( $core_blocks_meta as $name => $schema ) {
+        /** This filter is documented in wp-includes/blocks.php */
+        $schema = apply_filters( 'block_type_metadata', $schema );
+
+        // Backfill these properties similar to `register_block_type_from_metadata()`.
+        if ( ! isset( $schema['style'] ) ) {
+            $schema['style'] = "wp-block-{$name}";
+        }
+        if ( ! isset( $schema['editorStyle'] ) ) {
+            $schema['editorStyle'] = "wp-block-{$name}-editor";
+        }
+
+        foreach ( $style_fields as $style_field => $filename ) {
+            $style_handle = $schema[ $style_field ];
+            if ( is_array( $style_handle ) ) {
+                continue;
+            }
+
+            $style_path = "blocks/{$name}/{$filename}{$suffix}.css";
+            $path       = $includes_path . $style_path;
+
+            if ( ! in_array( $path, $files, true ) ) {
+                $wp_styles->add(
+                    $style_handle,
+                    false
+                );
+                continue;
+            }
+
+            $wp_styles->add( $style_handle, $includes_url . $style_path );
+            $wp_styles->add_data( $style_handle, 'path', $path );
+
+            $rtl_file = str_replace( "{$suffix}.css", "-rtl{$suffix}.css", $path );
+            if ( is_rtl() && in_array( $rtl_file, $files, true ) ) {
+                $wp_styles->add_data( $style_handle, 'rtl', 'replace' );
+                $wp_styles->add_data( $style_handle, 'suffix', $suffix );
+                $wp_styles->add_data( $style_handle, 'path', $rtl_file );
+            }
+        }
+    }
+}
+add_action( 'init', 'register_core_block_style_handles', 9 );
 
 /**