feat: add checkbox to toggle direction arrows

mapper/src/App.js

@@ -130,7 +130,7 @@ function MapViewManager({ coords, mapState, setMapState, loading, setSubmenu })
     return null;
 }
 
-function PolylineWithArrows({ coords }) {
+function PolylineWithArrows({ coords, showDirection }) {
     const map = useMap();
     const polylineRef = useRef(null);
     const decoratorRef = useRef(null);
@@ -148,6 +148,7 @@ function PolylineWithArrows({ coords }) {
             polylineRef.current = polyline;
             map.addLayer(polyline);
 
+            if (showDirection) {
                 const decorator = leaflet.polylineDecorator(polyline, {
                     patterns: [
                         {
@@ -167,6 +168,9 @@ function PolylineWithArrows({ coords }) {
                 });
                 decoratorRef.current = decorator;
                 map.addLayer(decorator);
+            } else {
+                decoratorRef.current = null;
+            }
         }
 
         return () => {
@@ -177,12 +181,12 @@ function PolylineWithArrows({ coords }) {
                 map.removeLayer(decoratorRef.current);
             }
         };
-    }, [coords, map]);
+    }, [coords, map, showDirection]);
 
     return null;
 }
 
-function Map({end, duration, slider, mapState, setMapState, setSubmenu}) {
+function Map({end, duration, slider, mapState, setMapState, setSubmenu, showDirection}) {
 	const [data, loading] = useSensor('owntracks', 'OwnTracks', end, duration);
 
 	const range = useMemo(() => parseSlider(end, duration, slider), [end, duration, slider]);
@@ -242,7 +246,7 @@ function Map({end, duration, slider, mapState, setMapState, setSubmenu}) {
 								attribution='&copy; <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors'
 								url='https://maptiles.p.rapidapi.com/en/map/v1/{z}/{x}/{y}.png?rapidapi-key=4375b0b1d8msh0c9e7fa3efb9adfp1769dfjsnd603a0387fea'
 							/>
-							<PolylineWithArrows coords={coords} />
+							<PolylineWithArrows coords={coords} showDirection={showDirection} />
 						</MapContainer>
 					)
 				:
@@ -259,7 +263,7 @@ function Map({end, duration, slider, mapState, setMapState, setSubmenu}) {
 	);
 }
 
-function Menu({duration, setDuration, end, setEnd, slider, setSlider, submenu, setSubmenu}) {
+function Menu({duration, setDuration, end, setEnd, slider, setSlider, submenu, setSubmenu, showDirection, setShowDirection}) {
 	const [showRange, setShowRange] = useState(false);
 
 	const chooseDuration = (x) => {
@@ -427,6 +431,16 @@ function Menu({duration, setDuration, end, setEnd, slider, setSlider, submenu, s
 								<h2>Misc</h2>
 								<button onClick={() => setSubmenu(false)}>×</button>
 							</div>
+							<div style={{ padding: '0.5rem 1rem' }}>
+								<label style={{ display: 'flex', alignItems: 'center', gap: '0.5rem' }}>
+									<input
+										type="checkbox"
+										checked={showDirection}
+										onChange={e => setShowDirection(e.target.checked)}
+									/>
+									Show direction
+								</label>
+							</div>
 							<button onClick={resetToDefaults}>Reset to defaults</button>
 						</>
 					}
@@ -471,6 +485,7 @@ function App() {
 	const initialLat = params.get('lat');
 	const initialLng = params.get('lng');
 	const initialZoom = params.get('zoom');
+	const initialShowDirection = params.get('showDirection') === 'true';
 
 	const initialDuration = (initialDurationId && durations[parseInt(initialDurationId, 10)]) ? durations[parseInt(initialDurationId, 10)] : durations[0];
 	const initialEnd = initialEndTimestamp ? moment.unix(initialEndTimestamp) : moment();
@@ -484,6 +499,7 @@ function App() {
 		zoom: initialZoom ? parseInt(initialZoom, 10) : 13,
 	});
 	const [submenu, setSubmenu] = useState(false);
+	const [showDirection, setShowDirection] = useState(initialShowDirection);
 
 	const isInitialMount = useRef(true);
 	useEffect(() => {
@@ -501,6 +517,9 @@ function App() {
 			params.set('duration', duration.id);
 			params.set('end', end.unix());
 			params.set('slider', slider.join(','));
+			if (showDirection) {
+				params.set('showDirection', 'true');
+			}
 			if (mapState.center) {
 				params.set('lat', mapState.center[0].toFixed(5));
 				params.set('lng', mapState.center[1].toFixed(5));
@@ -512,7 +531,7 @@ function App() {
 		return () => {
 			clearTimeout(handler);
 		};
-	}, [duration, end, slider, mapState]);
+	}, [duration, end, slider, mapState, showDirection]);
 
 	return (
 		<div>
@@ -525,6 +544,8 @@ function App() {
 				setSlider={setSlider}
 				submenu={submenu}
 				setSubmenu={setSubmenu}
+				showDirection={showDirection}
+				setShowDirection={setShowDirection}
 			/>
 
 			<Map
@@ -534,6 +555,7 @@ function App() {
 				mapState={mapState}
 				setMapState={setMapState}
 				setSubmenu={setSubmenu}
+				showDirection={showDirection}
 			/>
 		</div>
 	);