From 90161e098a03cf41343f4e335fbe4fdbe8766d05 Mon Sep 17 00:00:00 2001
From: Markus Koch <markus@notsyncing.net>
Date: Sun, 19 Apr 2020 20:36:47 +0200
Subject: [PATCH] editor: Add function to reset path

---
 htdocs/streeteditor.js | 20 ++++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/htdocs/streeteditor.js b/htdocs/streeteditor.js
index a5e9e17..5d69d0b 100644
--- a/htdocs/streeteditor.js
+++ b/htdocs/streeteditor.js
@@ -57,6 +57,8 @@ if (editor_mode) {
 			for (var i = 0; i < coords.length; i++) {
 				coords[i] = [coords[i][1], coords[i][0]];
 			}
+			if (polyline)
+				polyline.remove(mymap);
 			polyline = L.polyline(coords).addTo(mymap);
 			// polyline.on('dragend', onDragEnd); // TODO: Doesn't work, see "workaround" below
 			polyline.enableEdit();
@@ -65,7 +67,6 @@ if (editor_mode) {
 
 	function editor_onHashChange() {
 		if (("#" + get_location_string()) != window.location.hash) {
-			polyline.remove(mymap);
 			onLoad(0);
 		}
 	}
@@ -78,7 +79,6 @@ if (editor_mode) {
 	document.getElementById('mapid').classList.add("no-aa");
 	mymap.setMaxZoom(14);
 	mymap.off('click', onMapClick);
-	onLoad();
 
 	function get_location_string() {
 		var latlngs = polyline.getLatLngs();
@@ -98,6 +98,10 @@ if (editor_mode) {
 		prompt("Copy this string back into the Wiki and wait for a few hours:", get_location_string());
 	}
 
+	function reset_path(e) {
+		onLoad(1);
+	}
+
 	L.EditControl = L.Control.extend({
 		options: {
 			position: 'topleft',
@@ -120,6 +124,15 @@ if (editor_mode) {
 		}
 	});
 
+	L.ResetPathControl = L.EditControl.extend({
+		options: {
+			position: 'topleft',
+			callback: reset_path,
+			title: 'Enter path coordinates',
+			html: '↺'
+		}
+	});
+
 	L.StartEditControl = L.EditControl.extend({
 		options: {
 			position: 'topleft',
@@ -139,5 +152,8 @@ if (editor_mode) {
 	});
 
 	mymap.addControl(new L.NewLineControl());
+	mymap.addControl(new L.ResetPathControl());
 	mymap.addControl(new L.StartEditControl());
+
+	onLoad();
 }