add wp-rocket

wp-content/plugins/wp-rocket/inc/classes/subscriber/Optimization/class-buffer-subscriber.php

@@ -0,0 +1,49 @@
+<?php
+namespace WP_Rocket\Subscriber\Optimization;
+
+use WP_Rocket\Buffer\Optimization;
+use WP_Rocket\Event_Management\Subscriber_Interface;
+
+/**
+ * Event subscriber to buffer and process a page content.
+ *
+ * @since  3.3
+ * @author Grégory Viguier
+ */
+class Buffer_Subscriber implements Subscriber_Interface {
+	/**
+	 * Optimization instance
+	 *
+	 * @var Optimization
+	 */
+	private $optimizer;
+
+	/**
+	 * Constructor
+	 *
+	 * @param Optimization $optimizer Optimization instance.
+	 */
+	public function __construct( Optimization $optimizer ) {
+		$this->optimizer = $optimizer;
+	}
+
+	/**
+	 * {@inheritdoc}
+	 */
+	public static function get_subscribed_events() {
+		return [
+			'template_redirect' => [ 'start_content_process', 2 ],
+		];
+	}
+
+	/**
+	 * Start buffering the page content and apply optimizations if we can.
+	 *
+	 * @since  3.3
+	 * @access public
+	 * @author Grégory Viguier
+	 */
+	public function start_content_process() {
+		return $this->optimizer->maybe_init_process();
+	}
+}