- made hooks documentation;

- some optimizations and make single functions for some hooks;

includes/widgets/class-um-search-widget.php

@@ -24,6 +24,28 @@ class UM_Search_Widget extends \WP_Widget {
 
 	// Creating widget front-end
 	public function widget( $args, $instance ) {
+
+		/**
+		 * UM hook
+		 *
+		 * @type filter
+		 * @title widget_title
+		 * @description UM Search Widget Title
+		 * @input_vars
+		 * [{"var":"$title","type":"string","desc":"UM Search Widget Title"}]
+		 * @change_log
+		 * ["Since: 2.0"]
+		 * @usage
+		 * <?php add_filter( 'widget_title', 'function_name', 10, 1 ); ?>
+		 * @example
+		 * <?php
+		 * add_filter( 'widget_title', 'my_widget_title', 10, 1 );
+		 * function my_widget_title( $title ) {
+		 *     // your code here
+		 *     return $title;
+		 * }
+		 * ?>
+		 */
 		$title = apply_filters( 'widget_title', $instance['title'] );
 
 		// before and after widget arguments are defined by themes