xt-facebook-events - Extension No Event Text

functions.php

<?php
/**
 * Extension for xt-facebook-events
 * 
 * adds custom text when no events are loaded
 * 
 */
function dfc_shortcode_fb_events_hook_shortcode( $atts_o ) {
   
        
    // Lets check if the FB Events Plugin is active, no point otherwise displaying all this
    if (!function_exists('is_plugin_active')) {
        include_once( ABSPATH . 'wp-admin/includes/plugin.php' );
    }
    if (!is_plugin_active('xt-facebook-events/xt-facebook-events.php')) {
        return "Sorry an error occurred and no Events could be displayed";
    }
    
    
    $event_args = array(
				'page_id' 	 => '',
				'max_events' => 10,
				'new_window' => 1,
				'type' 		 => 'page',
			);
    $atts = wp_parse_args( (array) $atts_o, $event_args );
    

    
    // Load the Facebook Events Plugin and check if there are any upcoming events
    $fb = new XT_Facebook_Events_Facebook();
    $fb_r = $fb->get_events_for_facebook_page($atts);
    if ($fb_r == false) {
        // No upcoming events lets display that
        return '<p class="text-center">No Upcoming Events</p>';
    } else {
        
        // Upcoming events found, lets convert the $atts back to shortcode format
        $instance = $atts_o;
        
        $attr_array = array();
		if( isset( $instance['max_events'] ) && $instance['max_events'] != '' ){
			$attr_array[]= 'max_events ="'.esc_attr( $instance["max_events"] ).'"';
		}
		if( isset( $instance['page_id'] ) && $instance['page_id'] != '' ){
			$attr_array[]= 'page_id ="'.esc_attr( $instance["page_id"] ).'"';
		}
		if( isset( $instance['new_window'] ) && $instance['new_window'] != '' ){
			$attr_array[]= 'new_window ="1"';
		}
		if(isset( $instance['display_style'] ) && $instance['display_style'] != '' ){
			$attr_array[]= 'style = '. esc_attr( $instance['display_style'] );
		}
		if( $instance['display_event_image'] ){
			$attr_array[]= 'display_event_image ="1"';
		}
		if( $instance['display_event_location'] ){
			$attr_array[]= 'display_event_location ="1"';
		}
		if( $instance['display_event_enddate'] ){
			$attr_array[]= 'display_event_enddate ="1"';
		}
		if( $instance['display_event_desc'] ){
			$attr_array[]= 'display_event_desc ="1"';
		}
		$attr_str = implode(' ', $attr_array );
        
        // Lets send the data to the plugin to do what it does normally
		return do_shortcode( '[wpfb_events ' . $attr_str . ']' );        
    }    
}
add_shortcode( 'dfc_fb_events' , 'dfc_shortcode_fb_events_hook_shortcode');