Settings page restored, AJAX hook bundled in main class

includes/class-wpliveticker2.php

@@ -68,6 +68,11 @@ class WPLiveticker2 {
 		// Enqueue styles.
 		add_action( 'wp_footer', array( 'WPLiveticker2', 'enqueue_styles' ) );
 
+		// Add AJAX hook if configured.
+		if ( 1 === self::$_options['enable_ajax'] ) {
+			add_action( 'wp_ajax_wplt2_update-ticks', array( 'WPLiveticker2', 'ajax_update' ) );
+		}
+
 		// Admin only actions.
 		if ( is_admin() ) {
 			// Add dashboard "right now" functionality.
@@ -207,6 +212,50 @@ class WPLiveticker2 {
 		}
 	}
 
+	/**
+	 * Process Ajax upload file
+	 *
+	 * @return void
+	 */
+	public static function ajax_update() {
+		// TODO: re-enable security checks.
+//		check_ajax_referer( 'wplt_ajax_get_new_ticks' );
+
+		// Timestamp for request.
+		$slug = $_REQUEST['sl'];
+		$time = $_REQUEST['ts'];
+
+		if ( $slug ) {
+			// get new ticks from database
+			$args = array(
+				'post_type'      => 'wplt_tick',
+				'posts_per_page' => '-1',
+				'tax_query'      => array(
+					array(
+						'taxonomy' => 'wplt_ticker',
+						'field'    => 'slug',
+						'terms'    => $slug
+					)
+				)
+			);
+
+			$wp_query = new WP_Query( $args );
+			$output   = '';
+
+			while ( $wp_query->have_posts() ) {
+				$wp_query->the_post();
+				$output .= '<li class="wplt_tick">'
+				           . '<p><span class="wplt_tick_time">' . get_the_time( 'd.m.Y H.i' ) . '</span>'
+				           . '<span class="wplt_tick_title">' . get_the_title() . '</span></p>'
+				           . '<p class="wplt_tick_content">' . get_the_content() . '</p></li>';
+			}
+
+			// Echo success response
+			echo $output;
+		}
+		die();
+	}
+
 	/**
 	 * Update options.
 	 *