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wp-content/plugins/jetpack-boost/app/modules/optimizations/lcp/class-lcp-invalidator.php

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+<?php
+/**
+ * LCP Invalidator
+ *
+ * Reset LCP analysis data on certain events.
+ */
+
+namespace Automattic\Jetpack_Boost\Modules\Optimizations\Lcp;
+
+use Automattic\Jetpack_Boost\Lib\Cornerstone\Cornerstone_Utils;
+
+class LCP_Invalidator {
+
+	public static function init() {
+		add_action( 'jetpack_boost_deactivate', array( self::class, 'reset_data' ) );
+		add_action( 'update_option_jetpack_boost_ds_cornerstone_pages_list', array( self::class, 'reset_and_analyze' ) );
+		add_action( 'jetpack_boost_environment_changed', array( self::class, 'handle_environment_change' ) );
+		add_action( 'post_updated', array( self::class, 'handle_post_update' ) );
+	}
+
+	/**
+	 * Reset any LCP analysis data (state and storage).
+	 *
+	 * @since 4.0.0
+	 */
+	public static function reset_data() {
+		$state = new LCP_State();
+		$state->clear();
+
+		$storage = new LCP_Storage();
+		$storage->clear();
+	}
+
+	/**
+	 * Reset the LCP analysis data, and analyze the pages again.
+	 *
+	 * @since 4.0.0
+	 */
+	public static function reset_and_analyze() {
+		self::reset_data();
+
+		/**
+		 * Indicate that the latest LCP analysis data has been invalidated.
+		 */
+		do_action( 'jetpack_boost_lcp_invalidated' );
+	}
+
+	/**
+	 * Respond to environment changes; deciding whether or not to clear LCP analysis data.
+	 *
+	 * @since 4.0.0
+	 */
+	public static function handle_environment_change( $is_major_change ) {
+		if ( $is_major_change ) {
+			self::reset_and_analyze();
+		}
+	}
+
+	/**
+	 * Handle post updates to check if the post is a cornerstone page and schedule preload if needed.
+	 *
+	 * @since 4.0.0
+	 * @param int $post_id The ID of the post being updated.
+	 * @return void
+	 */
+	public static function handle_post_update( int $post_id ) {
+		if ( Cornerstone_Utils::is_cornerstone_page( $post_id ) ) {
+			$url = get_permalink( $post_id );
+
+			$analyzer = new LCP_Analyzer();
+			$analyzer->start_partial_analysis(
+				array(
+					Cornerstone_Utils::prepare_provider_data( $url ),
+				)
+			);
+		}
+	}
+}