first commit

wp-content/plugins/mailchimp-for-wp/includes/admin/class-admin-messages.php

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+<?php
+
+/**
+ * Class MC4WP_Admin_Messages
+ *
+ * @ignore
+ * @since 3.0
+ */
+class MC4WP_Admin_Messages {
+
+
+	/**
+	 * @var array
+	 */
+	protected $bag;
+
+	/**
+	 * @var bool
+	 */
+	protected $dirty = false;
+
+	/**
+	 * Add hooks
+	 */
+	public function add_hooks() {
+		add_action( 'admin_notices', array( $this, 'show' ) );
+		register_shutdown_function( array( $this, 'save' ) );
+	}
+
+	private function load() {
+		if ( is_null( $this->bag ) ) {
+			$this->bag = get_option( 'mc4wp_flash_messages', array() );
+		}
+	}
+
+	// empty flash bag
+	private function reset() {
+		$this->bag   = array();
+		$this->dirty = true;
+	}
+
+	/**
+	 * Flash a message (shows on next pageload)
+	 *
+	 * @param        $message
+	 * @param string $type
+	 */
+	public function flash( $message, $type = 'success' ) {
+		$this->load();
+		$this->bag[] = array(
+			'text' => $message,
+			'type' => $type,
+		);
+		$this->dirty = true;
+	}
+
+
+
+	/**
+	 * Show queued flash messages
+	 */
+	public function show() {
+		$this->load();
+
+		foreach ( $this->bag as $message ) {
+			echo sprintf( '<div class="notice notice-%s is-dismissible"><p>%s</p></div>', $message['type'], $message['text'] );
+		}
+
+		$this->reset();
+	}
+
+	/**
+	 * Save queued messages
+	 *
+	 * @hooked `shutdown`
+	 */
+	public function save() {
+		if ( $this->dirty ) {
+			update_option( 'mc4wp_flash_messages', $this->bag, false );
+		}
+	}
+}