From 7132bc4b43769e2838e238d2c8ed132f0e5dcab7 Mon Sep 17 00:00:00 2001
From: Eric van der Vlist <vdv@dyomedea.com>
Date: Thu, 14 May 2020 17:16:29 +0200
Subject: [PATCH] Dirty update to support displaying images without GPX track

---
 wp-gpx-maps.php | 20 +++++++++++++++-----
 1 file changed, 15 insertions(+), 5 deletions(-)

diff --git a/wp-gpx-maps.php b/wp-gpx-maps.php
index 04aa3cc..64035ca 100644
--- a/wp-gpx-maps.php
+++ b/wp-gpx-maps.php
@@ -342,6 +342,8 @@ function handle_WP_GPX_Maps_Shortcodes( $attr, $content = '' ) {
 	$colors_map = "\"" . implode( "\",\"", ( explode( " ", $color_map ) ) ) . "\"";
 
 	$gpxurl = $gpx;
+        
+        if ( ! $gpx == null ) {
 
 	/* Add file modification time to cache filename to catch new uploads with same file name */
 	$mtime = wp_gpx_maps_sitePath() . str_replace( array( '/', '\\' ), DIRECTORY_SEPARATOR, trim( $gpx ) );
@@ -433,9 +435,9 @@ function handle_WP_GPX_Maps_Shortcodes( $attr, $content = '' ) {
 			$gpx = str_replace( array( '/', '\\' ), DIRECTORY_SEPARATOR, $gpx );
 			$gpx = $sitePath . $gpx;
 		}
-		if ( $gpx == '' ) {
-			return "No gpx found";
-		}
+		//if ( $gpx == '' ) {
+		//	return "No gpx found";
+		//}
 
 		$points = wpgpxmaps_getPoints( $gpx, $pointsoffset, $donotreducegpx, $distanceType );
 
@@ -640,6 +642,14 @@ function handle_WP_GPX_Maps_Shortcodes( $attr, $content = '' ) {
 			$points_graph_grade = '';
 
 	}
+        } else {
+            // $gpx == null (no GPX track to display, only images...)
+            $points_x_time = array();
+            $points_x_lat  = array();
+            $points_x_lon  = array(); 
+            $waypoints = '[]';
+            $points_maps = '';
+        }
 
 	$ngimgs_data = '';
 	if ( $ngGalleries != '' || $ngImages != '' ) {
@@ -662,7 +672,7 @@ function handle_WP_GPX_Maps_Shortcodes( $attr, $content = '' ) {
 		}
 	}
 
-	if ( ! ( $skipcache == true ) ) {
+	if ( ! ( $skipcache == true ) && ! ( $gpx == null ) ) {
 
 		@file_put_contents( $gpxcache, serialize( array(
 			'points_maps'        => $points_maps,
@@ -694,7 +704,7 @@ function handle_WP_GPX_Maps_Shortcodes( $attr, $content = '' ) {
 		@chmod( $gpxcache, 0755 );
 	}
 
-	$hideGraph = ( $gh == '0' || $gh == '0px' );
+	$hideGraph = ( $gh == '0' || $gh == '0px' || $gpx == null );
 
 	global $post;
 	$r = $post->ID . '_' . rand( 1,5000000 );