initial

wp-content/plugins/jetpack-boost/app/modules/class-features-index.php

@@ -0,0 +1,80 @@
+<?php
+
+namespace Automattic\Jetpack_Boost\Modules;
+
+use Automattic\Jetpack_Boost\Contracts\Feature;
+use Automattic\Jetpack_Boost\Contracts\Sub_Feature;
+use Automattic\Jetpack_Boost\Modules\Image_Guide\Image_Guide;
+use Automattic\Jetpack_Boost\Modules\Optimizations\Cloud_CSS\Cloud_CSS;
+use Automattic\Jetpack_Boost\Modules\Optimizations\Critical_CSS\Critical_CSS;
+use Automattic\Jetpack_Boost\Modules\Optimizations\Image_CDN\Image_CDN;
+use Automattic\Jetpack_Boost\Modules\Optimizations\Image_CDN\Liar;
+use Automattic\Jetpack_Boost\Modules\Optimizations\Image_CDN\Quality_Settings;
+use Automattic\Jetpack_Boost\Modules\Optimizations\Lcp\Lcp;
+use Automattic\Jetpack_Boost\Modules\Optimizations\Minify\Minify_Common;
+use Automattic\Jetpack_Boost\Modules\Optimizations\Minify\Minify_CSS;
+use Automattic\Jetpack_Boost\Modules\Optimizations\Minify\Minify_JS;
+use Automattic\Jetpack_Boost\Modules\Optimizations\Page_Cache\Cache_Preload;
+use Automattic\Jetpack_Boost\Modules\Optimizations\Page_Cache\Page_Cache;
+use Automattic\Jetpack_Boost\Modules\Optimizations\Render_Blocking_JS\Render_Blocking_JS;
+use Automattic\Jetpack_Boost\Modules\Optimizations\Speculation_Rules\Speculation_Rules;
+use Automattic\Jetpack_Boost\Modules\Performance_History\Performance_History;
+
+class Features_Index {
+
+	/**
+	 * @var class-string<Feature>[] - Classes that handle all Jetpack Boost features.
+	 */
+	const FEATURES = array(
+		Critical_CSS::class,
+		Cloud_CSS::class,
+		Lcp::class,
+		Minify_JS::class,
+		Minify_CSS::class,
+		Render_Blocking_JS::class,
+		Image_Guide::class,
+		Image_CDN::class,
+		Performance_History::class,
+		Page_Cache::class,
+		Speculation_Rules::class,
+	);
+
+	/**
+	 * @var class-string<Sub_Feature>[] - Classes that handle all Jetpack Boost subfeatures.
+	 */
+	const SUB_FEATURES = array(
+		Minify_Common::class,
+		Liar::class,
+		Quality_Settings::class,
+		Cache_Preload::class,
+	);
+
+	/**
+	 * Get all features and subfeatures.
+	 *
+	 * @return class-string<Feature>[]
+	 */
+	public static function get_all_features() {
+		return array_merge( self::FEATURES, self::SUB_FEATURES );
+	}
+
+	/**
+	 * Get the subfeatures of a feature.
+	 *
+	 * @param Feature $feature The feature to get the subfeatures of.
+	 * @return class-string<Sub_Feature>[] The subfeatures of the feature.
+	 */
+	public static function get_sub_features_of( Feature $feature ) {
+		/**
+		 * @var class-string<Sub_Feature>[]
+		 */
+		$subfeatures   = array();
+		$feature_class = get_class( $feature );
+		foreach ( self::SUB_FEATURES as $subfeature ) {
+			if ( in_array( $feature_class, $subfeature::get_parent_features(), true ) ) {
+				$subfeatures[] = $subfeature;
+			}
+		}
+		return $subfeatures;
+	}
+}