nakarte

commit 4d90013d9eaf802ff25bc1d29add6ea01f2f025b
parent 2abc4c481c3195d2925178d761a5941b14585ab2
Author: myadzel <myadzel@gmail.com>
Date:   Wed, 28 Dec 2022 19:48:38 +0300

add geojson parser (issue #1096)

Diffstat:
A
src/lib/leaflet.control.track-list/lib/parsers/geojson.js
 | 
83
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
M
src/lib/leaflet.control.track-list/lib/parsers/index.js
 | 
2
++
M
src/lib/leaflet.control.track-list/track-list.js
 | 
6
+++---

3 files changed, 88 insertions(+), 3 deletions(-)
diff --git a/src/lib/leaflet.control.track-list/lib/parsers/geojson.js b/src/lib/leaflet.control.track-list/lib/parsers/geojson.js
@@ -0,0 +1,83 @@
+import {decode} from 'utf8';
+
+function parseGeojson(txt, fileName) {
+    let error;
+
+    const tracks = [];
+    const points = [];
+
+    function parsePoints(features) {
+        features.forEach((feature) => {
+            let pointName = '';
+
+            if ('name' in feature.properties) {
+                pointName = decode(feature.properties.name.toString());
+            }
+
+            const [lng, lat] = feature.geometry.coordinates;
+
+            if (typeof lng !== 'number' || typeof lat !== 'number') {
+                error = 'CORRUPT';
+
+                return;
+            }
+
+            points.push({
+                lng,
+                lat,
+                name: pointName,
+            });
+        });
+    }
+
+    function parseTracks(features) {
+        features.forEach((feature) => {
+            const segment = [];
+
+            feature.geometry.coordinates.forEach((coordinate) => {
+                const [lng, lat] = coordinate;
+
+                if (typeof lng !== 'number' || typeof lat !== 'number') {
+                    error = 'CORRUPT';
+
+                    return;
+                }
+
+                segment.push({
+                    lng,
+                    lat,
+                });
+            });
+
+            if (segment.length < 2) {
+                error = 'CORRUPT';
+
+                return;
+            }
+
+            tracks.push(segment);
+        });
+    }
+
+    try {
+        const json = JSON.parse(txt);
+
+        const features = json.features;
+
+        parsePoints(features.filter((feature) => feature.geometry.type === 'Point'));
+        parseTracks(features.filter((feature) => feature.geometry.type === 'LineString'));
+    } catch (err) {
+        error = 'CORRUPT';
+    }
+
+    return [
+        {
+            name: fileName,
+            tracks,
+            points,
+            error,
+        },
+    ];
+}
+
+export {parseGeojson};
diff --git a/src/lib/leaflet.control.track-list/lib/parsers/index.js b/src/lib/leaflet.control.track-list/lib/parsers/index.js
@@ -2,6 +2,7 @@ import parseGpx from './gpx';
 import parseZip from './zip';
 import {parseKmz, parseKml} from './kml';
 import {parseOziPlt, parseOziRte, parseOziWpt} from './ozi';
+import {parseGeojson} from './geojson';
 
 const parsers = [
     parseKmz,
@@ -11,6 +12,7 @@ const parsers = [
     parseOziPlt,
     parseOziWpt,
     parseKml,
+    parseGeojson,
 ];
 
 export default parsers;
diff --git a/src/lib/leaflet.control.track-list/track-list.js b/src/lib/leaflet.control.track-list/track-list.js
@@ -92,7 +92,7 @@ L.Control.TrackList = L.Control.extend({
             lineCursorStyle: {interactive: false, weight: 1.5, opacity: 1, dashArray: '7,7'},
             lineCursorValidStyle: {color: 'green'},
             lineCursorInvalidStyle: {color: 'red'},
-            splitExtensions: ['gpx', 'kml', 'kmz', 'wpt', 'rte', 'plt', 'fit', 'tmp', 'jpg', 'crdownload'],
+            splitExtensions: ['gpx', 'kml', 'geojson', 'kmz', 'wpt', 'rte', 'plt', 'fit', 'tmp', 'jpg', 'crdownload'],
             splitExtensionsFirstStage: ['xml', 'txt', 'html', 'php', 'tmp', 'gz'],
             trackHighlightStyle: {
                 color: 'yellow',
@@ -147,8 +147,8 @@ L.Control.TrackList = L.Control.extend({
                 <div class="leaflet-control-content">
                 <div class="header">
                     <div class="hint"
-                     title="gpx kml Ozi zip YandexMaps Strava GPSLib Etomesto GarminConnect SportsTracker OSM Tracedetrail OpenStreetMap.ru Wikiloc">
-                        gpx kml Ozi zip YandexMaps Strava
+                     title="gpx kml Ozi geojson zip YandexMaps Strava GPSLib Etomesto GarminConnect SportsTracker OSM Tracedetrail OpenStreetMap.ru Wikiloc">
+                        gpx kml Ozi geojson zip YandexMaps Strava
                         <span class="formats-hint-more">&hellip;</span>
                     </div>
                     <div class="button-minimize" data-bind="click: setMinimized"></div>