feat(directions): browser-local Saved Points layer (click empty space), toggleable, selectable as origin/destination

src/lib/components/DirectionsPanel.svelte

@@ -6,6 +6,7 @@
 	import { search } from '$lib/search';
 	import { geocode, type GeocodedPlace } from '$lib/geocode';
 	import { prefs } from '$lib/prefs';
+	import type { SavedPoint } from '$lib/savedPoints';
 
 	interface Props {
 		map: LeafletMap;
@@ -29,6 +30,10 @@
 			to: [number, number],
 			avoid: AvoidRule[]
 		) => Promise<RouteResult>;
+		/** Browser-local saved points (selectable as destination). */
+		savedPoints?: SavedPoint[];
+		/** Called when the user picks a saved point as a destination. */
+		onPickSavedPoint?: (p: SavedPoint) => void;
 	}
 
 	let {
@@ -40,7 +45,9 @@
 		searchables = [],
 		progress = 0,
 		computing = false,
-		runRoute
+		runRoute,
+		savedPoints = [],
+		onPickSavedPoint
 	}: Props = $props();
 
 	// --- destination ---
@@ -280,6 +287,16 @@
 						</ul>
 					{/if}
 				</div>
+				{#if savedPoints.length}
+					<div class="dest-saved">
+						<span class="sept-label">— or a saved point —</span>
+						{#each savedPoints as p (p.id)}
+							<button type="button" class="saved-opt" onclick={() => { onPickSavedPoint?.(p); destination = { lat: p.lat, lon: p.lon, label: p.label || 'Saved point' }; }}>
+								<span class="saved-dot"></span>{p.label || `${p.lat.toFixed(4)}, ${p.lon.toFixed(4)}`}
+							</button>
+						{/each}
+					</div>
+				{/if}
 			</div>
 		{/if}
 
@@ -401,6 +418,11 @@
 	.warnline { color: #b45309; font-size: 0.72rem; margin-top: 4px; }
 	.mute { color: #94a3b8; font-size: 0.7rem; }
 	.warn { color: #b91c1c; }
+	.dest-saved { margin-top: 6px; border-top: 1px solid #e2e8f0; padding-top: 6px; display: grid; gap: 3px; }
+	.sept-label { font-size: 0.68rem; color: #94a3b8; }
+	.saved-opt { width: 100%; text-align: left; background: none; border: none; cursor: pointer; padding: 4px 6px; border-radius: 4px; font-size: 0.76rem; color: #0f172a; display: flex; align-items: center; gap: 6px; }
+	.saved-opt:hover { background: #f1f5f9; }
+	.saved-dot { width: 8px; height: 8px; border-radius: 50%; background: #8b5cf6; flex: none; }
 	.hint.small { font-size: 0.7rem; margin-top: 6px; color: #94a3b8; }
 	.turns { margin-top: 8px; background: #f8fafc; border: 1px solid #e2e8f0; border-radius: 6px; padding: 6px 8px; }
 	.turns-head { font-weight: 700; font-size: 0.72rem; color: #475569; margin-bottom: 4px; }

src/lib/components/MapView.svelte

@@ -7,6 +7,7 @@
 	import DirectionsPanel from '$lib/components/DirectionsPanel.svelte';
 	import { prefs } from '$lib/prefs';
 	import type { RouteGraph, AvoidRule, RouteResult } from '$lib/routing';
+	import { savedPoints, addSavedPoint, removeSavedPoint, type SavedPoint } from '$lib/savedPoints';
 
 	type FeatureCollection = {
 		type: string;
@@ -62,9 +63,14 @@
 	// Set by a search result or a direct map click; most recent wins.
 	let origin = $state<{ lat: number; lon: number; label?: string } | null>(null);
 	let originLayer: L.Layer | null = null;
+	// --- Saved Points (browser-local) layer ---
+	let savedPointsList = $state<SavedPoint[]>([]);
+	let savedPointLayer: L.LayerGroup | null = null;
+	let savedPointsVisible = $state(false);
 	// --- preferences dialog state ---
 	let showPrefs = $state(false);
 	let computingRoute = $state(false);
+	savedPoints.subscribe((pts) => { savedPointsList = pts; });
 	// --- route graph + POIs loaded from a dump layer (for directions) ---
 	let routeGraph = $state<RouteGraph | null>(null);
 	let routePois = $state<GeoJSON.Feature[]>([]);
@@ -239,6 +245,36 @@
 
 	onDestroy(destroyWorker);
 
+	// (Re)draw the Saved Points layer on the map when visible.
+	async function drawSavedPoints() {
+		if (!map) return;
+		const L = (await import('leaflet')).default;
+		if (savedPointLayer) { savedPointLayer.remove(); savedPointLayer = null; }
+		if (!savedPointsVisible || !savedPointsList.length) return;
+		savedPointLayer = L.layerGroup().addTo(map);
+		for (const p of savedPointsList) {
+			const mk = L.marker([p.lat, p.lon], {
+				icon: L.divIcon({
+					className: 'saved-pin-wrap',
+					html: `<div class="saved-pin" style="border-left-color:#8b5cf6"></div>`,
+					iconSize: [0, 0]
+				})
+			}).addTo(savedPointLayer);
+			const nm = p.label || `${p.lat.toFixed(4)}, ${p.lon.toFixed(4)}`;
+			mk.bindPopup(`<strong>${nm.replace(/</g, '&lt;')}</strong><br><em class="popup-desc">Saved point</em>`);
+		}
+	}
+	// Redraw saved points when the underlying list changes while visible.
+	$effect(() => { savedPointsList; if (savedPointsVisible && map) void drawSavedPoints(); });
+
+	function toggleSavedPoints() {
+		savedPointsVisible = !savedPointsVisible;
+		void drawSavedPoints();
+	}
+	function setSavedPointAsOrigin(p: SavedPoint) {
+		setOrigin(p.lat, p.lon, p.label || 'Saved point');
+	}
+
 	function toggle(name: string) {
 		const g = layerGroups[name];
 		if (!g) return;
@@ -303,11 +339,13 @@
 			attribution: '&copy; OpenStreetMap contributors'
 		}).addTo(map);
 
-		// Click anywhere on the map to set the origin (start point), as long as
-		// we're not in the middle of picking a destination inside the panel.
+		// Clicking an empty spot on the map creates a browser-local Saved Point
+		// and sets it as the origin (start point). POI clicks are handled by the
+		// individual feature popups, so a bare map click = empty space.
 		map.on('click', (e: L.LeafletMouseEvent) => {
 			if (showDirections) return; // direction dialog owns clicks while open
-			setOrigin(e.latlng.lat, e.latlng.lng);
+			const sp = addSavedPoint({ lat: e.latlng.lat, lon: e.latlng.lng });
+			setOrigin(sp.lat, sp.lon, sp.label || 'Start');
 		});
 
 		try {
@@ -490,6 +528,12 @@
 				<span class="count">{layer.featureCount}</span>
 			</label>
 		{/each}
+		<label class="row">
+			<input type="checkbox" checked={savedPointsVisible} onchange={() => toggleSavedPoints()} />
+			<span class="swatch" style="background:#8b5cf6"></span>
+			<span class="lbl">Saved Points</span>
+			<span class="count">{savedPointsList.length}</span>
+		</label>
 	</div>
 
 	{#if showDirections && origin}
@@ -501,6 +545,8 @@
 				graphLabel={graphLabel}
 				onLoadGraph={() => loadRouteGraph(true)}
 				searchables={searchables}
+				savedPoints={savedPointsList}
+				onPickSavedPoint={(p) => setSavedPointAsOrigin(p)}
 				progress={routeProgress}
 				computing={computingRoute}
 				{runRoute}
@@ -639,6 +685,9 @@
 		background: #0f172a; color: #fff; font-weight: 600; cursor: pointer; font-size: 0.85rem;
 	}
 	.pref-close:hover { background: #1e293b; }
+	/* saved points pin */
+	:global(.saved-pin-wrap) { background: transparent; border: none; }
+	:global(.saved-pin) { width: 0; height: 0; border: 10px solid transparent; border-bottom: 0; border-left-color: #8b5cf6; }
 	/* origin pin */
 	:global(.origin-pin-wrap) { background: transparent; border: none; }
 	:global(.origin-label) {

src/lib/savedPoints.ts

@@ -0,0 +1,120 @@
+/**
+ * savedPoints.ts — browser-local "Saved Points" store.
+ * ----------------------------------------------------------------------
+ * A Saved Point is a user-clicked location that isn't a known POI. Points are
+ * persisted to localStorage so they survive reloads, and are rendered as a
+ * toggleable "Saved Points" layer. They can also serve as route origins /
+ * destinations.
+ *
+ * The store is a Svelte writable store; subscribe to it to re-render the layer
+ * when points change.
+ */
+
+import { writable } from 'svelte/store';
+
+export interface SavedPoint {
+	id: string;
+	lat: number;
+	lon: number;
+	label?: string;
+	created: number;
+}
+
+const KEY = 'navigator.savedPoints.v1';
+
+function load(): SavedPoint[] {
+	try {
+		const raw = localStorage.getItem(KEY);
+		if (!raw) return [];
+		const parsed = JSON.parse(raw);
+		if (!Array.isArray(parsed)) return [];
+		return parsed
+			.filter((p) => p && typeof p.lat === 'number' && typeof p.lon === 'number')
+			.map((p) => ({
+				id: String(p.id ?? `${p.lat},${p.lon}`),
+				lat: p.lat,
+				lon: p.lon,
+				label: typeof p.label === 'string' ? p.label : undefined,
+				created: typeof p.created === 'number' ? p.created : Date.now()
+			}));
+	} catch {
+		return [];
+	}
+}
+
+function createStore() {
+	const store = writable<SavedPoint[]>(load());
+	store.subscribe((points) => {
+		try {
+			localStorage.setItem(KEY, JSON.stringify(points));
+		} catch {
+			/* storage unavailable — ignore */
+		}
+	});
+	return store;
+}
+
+export const savedPoints = createStore();
+
+export function addSavedPoint(point: Omit<SavedPoint, 'id' | 'created'>): SavedPoint {
+	const sp: SavedPoint = { ...point, id: crypto.randomUUID ? crypto.randomUUID() : `${Date.now()}-${Math.random()}`, created: Date.now() };
+	savedPoints.update((pts) => [...pts, sp]);
+	return sp;
+}
+
+export function removeSavedPoint(id: string): void {
+	savedPoints.update((pts) => pts.filter((p) => p.id !== id));
+}
+
+export function clearSavedPoints(): void {
+	savedPoints.set([]);
+}
+
+/**
+ * Serialize the current points to a JSON string (for export / download).
+ */
+export function exportSavedPoints(): string {
+	let pts: SavedPoint[] = [];
+	savedPoints.subscribe((p) => (pts = p))();
+	return JSON.stringify({ type: 'navigator.savedPoints', version: 1, points: pts }, null, 2);
+}
+
+/**
+ * Merge imported points into the store, de-duplicating by id (existing ids are
+ * kept; new ids are added). Returns the number of points added.
+ */
+export function importSavedPoints(json: string): { added: number; skipped: number } {
+	let parsed: unknown;
+	try {
+		parsed = JSON.parse(json);
+	} catch {
+		throw new Error('Invalid JSON file.');
+	}
+	const list = (parsed as { points?: unknown[] })?.points;
+	if (!Array.isArray(list)) throw new Error('Unrecognized file format (expected { points: [...] }).');
+
+	const valid: SavedPoint[] = list
+		.filter((p): p is SavedPoint => !!p && typeof (p as SavedPoint).lat === 'number' && typeof (p as SavedPoint).lon === 'number')
+		.map((p) => ({
+			id: String(p.id ?? `${p.lat},${p.lon}`),
+			lat: p.lat,
+			lon: p.lon,
+			label: typeof p.label === 'string' ? p.label : undefined,
+			created: typeof p.created === 'number' ? p.created : Date.now()
+		}));
+
+	let added = 0;
+	let skipped = 0;
+	savedPoints.update((pts) => {
+		const existing = new Set(pts.map((p) => p.id));
+		const out = [...pts];
+		for (const p of valid) {
+			if (existing.has(p.id)) { skipped++; continue; }
+			out.push(p);
+			existing.add(p.id);
+			added++;
+		}
+		return out;
+	});
+	return { added, skipped };
+}