From 4d26db348c9969af01c3376cdec17189b89fe766 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Antonia=20P=C3=A9rez-Cerezo?= <antonia@antonia.is>
Date: Mon, 10 Mar 2025 19:46:14 +0100
Subject: [PATCH] make geojson path persist after saving and allow drawing more
 features

---
 frontend/common/map.js | 29 ++++++++++++++++++++---------
 1 file changed, 20 insertions(+), 9 deletions(-)

diff --git a/frontend/common/map.js b/frontend/common/map.js
index 052a0d2..0bbd987 100644
--- a/frontend/common/map.js
+++ b/frontend/common/map.js
@@ -72,6 +72,19 @@ let geojsons = [];
 let geojson;
 let editlayer;
 
+function addGeoJsonToMap(dat) {
+		if (editlayer != undefined) {
+				const style = {
+						"color": editlayer.color
+				};
+				g = L.geoJSON(dat, {style: style});
+		} else {
+				g = L.geoJSON(dat);
+		}
+		g.addTo(map);
+		return g;
+}
+
 async function updateBrouter () {
 		if (markers.length > 0) {
 				for (i=1; i< markers.length-1; i++) {
@@ -98,15 +111,7 @@ async function updateBrouter () {
 								}
 								geojsons.push(data.features[0]);
 								const dat = {type: "FeatureCollection", features: geojsons};
-								if (editlayer != undefined) {
-										const style = {
-												"color": editlayer.color
-										};
-										geojson = L.geoJSON(dat, {style: style});
-								} else {
-										geojson = L.geoJSON(dat);
-								}
-								geojson.addTo(map);
+								geojson = addGeoJsonToMap(dat);
 						})
 		}
 }
@@ -157,6 +162,12 @@ async function pickDirectory(e){
 				const writableStream = await file.createWritable();
 				await writableStream.write(blob);
 				await writableStream.close();
+				addGeoJsonToMap(dat);
+				for (i=0; i<markers.length; i++) {
+						map.removeLayer(markers[i]);
+				}
+				markers = [];
+				updateBrouter();
 				alert("Saved file!");
 		}
 }