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wp-content/plugins/wordpress-seo/admin/class-admin-gutenberg-compatibility-notification.php

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+<?php
+/**
+ * WPSEO plugin file.
+ *
+ * @package WPSEO\Admin
+ */
+
+/**
+ * Handles the Gutenberg Compatibility notification showing and hiding.
+ */
+class WPSEO_Admin_Gutenberg_Compatibility_Notification implements WPSEO_WordPress_Integration {
+
+	/**
+	 * Notification ID to use.
+	 *
+	 * @var string
+	 */
+	private $notification_id = 'wpseo-outdated-gutenberg-plugin';
+
+	/**
+	 * Instance of gutenberg compatibility checker.
+	 *
+	 * @var WPSEO_Gutenberg_Compatibility
+	 */
+	protected $compatibility_checker;
+
+	/**
+	 * Instance of Yoast Notification Center.
+	 *
+	 * @var Yoast_Notification_Center
+	 */
+	protected $notification_center;
+
+	/**
+	 * WPSEO_Admin_Gutenberg_Compatibility_Notification constructor.
+	 */
+	public function __construct() {
+		$this->compatibility_checker = new WPSEO_Gutenberg_Compatibility();
+		$this->notification_center   = Yoast_Notification_Center::get();
+	}
+
+	/**
+	 * Registers all hooks to WordPress.
+	 *
+	 * @return void
+	 */
+	public function register_hooks() {
+		add_action( 'admin_init', [ $this, 'manage_notification' ] );
+	}
+
+	/**
+	 * Manages if the notification should be shown or removed.
+	 *
+	 * @return void
+	 */
+	public function manage_notification() {
+		/**
+		 * Filter: 'yoast_display_gutenberg_compat_notification' - Allows developer to disable the Gutenberg compatibility
+		 * notification.
+		 *
+		 * @api bool
+		 */
+		$display_notification = apply_filters( 'yoast_display_gutenberg_compat_notification', true );
+
+		if (
+			! $this->compatibility_checker->is_installed()
+			|| $this->compatibility_checker->is_fully_compatible()
+			|| ! $display_notification
+		) {
+			$this->notification_center->remove_notification_by_id( $this->notification_id );
+
+			return;
+		}
+
+		$this->add_notification();
+	}
+
+	/**
+	 * Adds the notification to the notificaton center.
+	 *
+	 * @return void
+	 */
+	protected function add_notification() {
+		$level = $this->compatibility_checker->is_below_minimum() ? Yoast_Notification::ERROR : Yoast_Notification::WARNING;
+
+		$message = sprintf(
+			/* translators: %1$s expands to Yoast SEO, %2$s expands to the installed version, %3$s expands to Gutenberg */
+			__( '%1$s detected you are using version %2$s of %3$s, please update to the latest version to prevent compatibility issues.', 'wordpress-seo' ),
+			'Yoast SEO',
+			$this->compatibility_checker->get_installed_version(),
+			'Gutenberg'
+		);
+
+		$notification = new Yoast_Notification(
+			$message,
+			[
+				'id'       => $this->notification_id,
+				'type'     => $level,
+				'priority' => 1,
+			]
+		);
+
+		$this->notification_center->add_notification( $notification );
+	}
+}