feat: implement location selection interface with EXIF, GPS, and map picker
- Created LocationSelector component with three location input methods: * Auto-populate from photo EXIF data * Device GPS location capture with accuracy indicator * Interactive Leaflet map picker with draggable marker - Added Ireland coordinate validation (lat: 51.4-55.4, lng: -10.5--5.5) - Created coordinate utility functions for validation and formatting - Added LocationSelectorDemo page for testing at /demo/location-selector - Displays selected location with coordinates, source, and accuracy - Provides clear error messages for validation failures - Satisfies requirements 1.1, 1.2, 1.3, 8.2
This commit is contained in:
337
src/components/report/LocationSelector.tsx
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337
src/components/report/LocationSelector.tsx
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import { useState, useEffect, useRef } from 'react';
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import L from 'leaflet';
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import 'leaflet/dist/leaflet.css';
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import useGeolocation from '@/hooks/useGeolocation';
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import { IRELAND_BOUNDS, isWithinIreland, getAccuracyLabel } from '@/utils/coordinates';
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import type { Coordinates, LocationSource } from '@/types';
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import type { PhotoMetadata } from './PhotoUpload';
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// Fix for default marker icons in Leaflet with Vite
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import markerIcon2x from 'leaflet/dist/images/marker-icon-2x.png';
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import markerIcon from 'leaflet/dist/images/marker-icon.png';
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import markerShadow from 'leaflet/dist/images/marker-shadow.png';
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delete (L.Icon.Default.prototype as any)._getIconUrl;
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L.Icon.Default.mergeOptions({
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iconUrl: markerIcon,
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iconRetinaUrl: markerIcon2x,
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shadowUrl: markerShadow,
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});
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interface LocationSelectorProps {
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photos: PhotoMetadata[];
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onLocationChange: (location: Coordinates, source: LocationSource, accuracy?: number) => void;
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initialLocation?: Coordinates;
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}
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export function LocationSelector({ photos, onLocationChange, initialLocation }: LocationSelectorProps) {
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const [selectedLocation, setSelectedLocation] = useState<Coordinates | null>(initialLocation || null);
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const [locationSource, setLocationSource] = useState<LocationSource | null>(null);
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const [accuracy] = useState<number | undefined>(undefined);
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const [showMap, setShowMap] = useState(false);
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const [validationError, setValidationError] = useState<string | null>(null);
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const mapRef = useRef<HTMLDivElement>(null);
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const mapInstanceRef = useRef<L.Map | null>(null);
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const markerRef = useRef<L.Marker | null>(null);
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const { coordinates, error, loading, getCurrentPosition } = useGeolocation();
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// Auto-populate location from EXIF data when photos are uploaded
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useEffect(() => {
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if (photos.length === 0 || selectedLocation) return;
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// Find first photo with GPS data
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const photoWithGPS = photos.find(photo => photo.hasGPS && photo.latitude && photo.longitude);
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if (photoWithGPS && photoWithGPS.latitude && photoWithGPS.longitude) {
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const coords = {
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latitude: photoWithGPS.latitude,
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longitude: photoWithGPS.longitude,
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};
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// Validate coordinates are within Ireland
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if (isWithinIreland(coords.latitude, coords.longitude)) {
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setSelectedLocation(coords);
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setLocationSource('exif');
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setValidationError(null);
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onLocationChange(coords, 'exif');
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} else {
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setValidationError('Photo location is outside Ireland. Please select a location manually.');
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}
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}
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}, [photos, selectedLocation, onLocationChange]);
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// Handle device GPS location
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useEffect(() => {
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if (coordinates && locationSource === 'gps') {
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// Validate coordinates are within Ireland
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if (isWithinIreland(coordinates.latitude, coordinates.longitude)) {
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setSelectedLocation(coordinates);
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setValidationError(null);
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onLocationChange(coordinates, 'gps', accuracy);
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} else {
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setValidationError('Your current location is outside Ireland. Please select a location manually.');
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setSelectedLocation(null);
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}
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}
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}, [coordinates, locationSource, accuracy, onLocationChange]);
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// Initialize map when map view is shown
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useEffect(() => {
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if (!showMap || !mapRef.current || mapInstanceRef.current) return;
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// Default center: Dublin, Ireland
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const defaultCenter: [number, number] = [53.3498, -6.2603];
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const initialCenter: [number, number] = selectedLocation
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? [selectedLocation.latitude, selectedLocation.longitude]
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: defaultCenter;
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// Create map instance
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const map = L.map(mapRef.current).setView(initialCenter, selectedLocation ? 13 : 7);
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// Add OpenStreetMap tiles
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L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
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attribution: '© <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors',
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maxZoom: 19,
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}).addTo(map);
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// Add Ireland boundary rectangle for visual reference
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const irelandBounds = L.latLngBounds(
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[IRELAND_BOUNDS.minLat, IRELAND_BOUNDS.minLng],
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[IRELAND_BOUNDS.maxLat, IRELAND_BOUNDS.maxLng]
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);
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L.rectangle(irelandBounds, {
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color: '#3B82F6',
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weight: 2,
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fillOpacity: 0.05,
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dashArray: '5, 5',
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}).addTo(map);
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// Add marker if location is already selected
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if (selectedLocation) {
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markerRef.current = L.marker([selectedLocation.latitude, selectedLocation.longitude], {
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draggable: true,
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}).addTo(map);
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// Handle marker drag
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markerRef.current.on('dragend', () => {
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if (markerRef.current) {
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const position = markerRef.current.getLatLng();
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handleMapLocationSelect(position.lat, position.lng);
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}
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});
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}
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// Handle map clicks
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map.on('click', (e: L.LeafletMouseEvent) => {
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handleMapLocationSelect(e.latlng.lat, e.latlng.lng);
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});
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mapInstanceRef.current = map;
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return () => {
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map.remove();
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mapInstanceRef.current = null;
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markerRef.current = null;
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};
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}, [showMap]);
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// Update marker position when selected location changes
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useEffect(() => {
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if (!mapInstanceRef.current || !selectedLocation) return;
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const map = mapInstanceRef.current;
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// Remove existing marker
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if (markerRef.current) {
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map.removeLayer(markerRef.current);
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}
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// Add new marker
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markerRef.current = L.marker([selectedLocation.latitude, selectedLocation.longitude], {
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draggable: true,
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}).addTo(map);
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// Handle marker drag
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markerRef.current.on('dragend', () => {
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if (markerRef.current) {
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const position = markerRef.current.getLatLng();
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handleMapLocationSelect(position.lat, position.lng);
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}
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});
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// Center map on marker
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map.setView([selectedLocation.latitude, selectedLocation.longitude], 13);
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}, [selectedLocation]);
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const handleMapLocationSelect = (lat: number, lng: number) => {
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// Validate coordinates are within Ireland
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if (!isWithinIreland(lat, lng)) {
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setValidationError('Selected location is outside Ireland. Please select a location within Ireland.');
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return;
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}
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const coords = { latitude: lat, longitude: lng };
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setSelectedLocation(coords);
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setLocationSource('manual');
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setValidationError(null);
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onLocationChange(coords, 'manual');
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};
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const handleUseDeviceLocation = () => {
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setLocationSource('gps');
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setValidationError(null);
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getCurrentPosition();
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};
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const handleShowMapPicker = () => {
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setShowMap(true);
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};
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const getLocationSourceLabel = (source: LocationSource): string => {
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const labels: Record<LocationSource, string> = {
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exif: 'Photo EXIF data',
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gps: 'Device GPS',
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manual: 'Manual selection',
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};
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return labels[source];
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};
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return (
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<div className="space-y-4">
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<div>
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<label className="block text-sm font-medium text-gray-700 mb-2">
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Location <span className="text-red-500">*</span>
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</label>
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{/* Location Selection Buttons */}
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<div className="flex flex-wrap gap-2 mb-4">
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<button
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type="button"
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onClick={handleUseDeviceLocation}
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disabled={loading}
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className="flex items-center gap-2 px-4 py-2 bg-blue-600 text-white rounded-lg hover:bg-blue-700 disabled:bg-gray-400 disabled:cursor-not-allowed transition-colors"
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>
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<svg
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xmlns="http://www.w3.org/2000/svg"
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className="h-5 w-5"
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fill="none"
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viewBox="0 0 24 24"
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stroke="currentColor"
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>
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<path
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strokeLinecap="round"
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strokeLinejoin="round"
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strokeWidth={2}
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d="M17.657 16.657L13.414 20.9a1.998 1.998 0 01-2.827 0l-4.244-4.243a8 8 0 1111.314 0z"
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/>
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<path
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strokeLinecap="round"
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strokeLinejoin="round"
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strokeWidth={2}
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d="M15 11a3 3 0 11-6 0 3 3 0 016 0z"
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/>
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</svg>
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{loading ? 'Getting location...' : 'Use Device GPS'}
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</button>
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<button
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type="button"
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onClick={handleShowMapPicker}
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className="flex items-center gap-2 px-4 py-2 bg-gray-600 text-white rounded-lg hover:bg-gray-700 transition-colors"
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>
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<svg
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xmlns="http://www.w3.org/2000/svg"
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className="h-5 w-5"
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fill="none"
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viewBox="0 0 24 24"
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stroke="currentColor"
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>
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<path
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strokeLinecap="round"
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strokeLinejoin="round"
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strokeWidth={2}
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d="M9 20l-5.447-2.724A1 1 0 013 16.382V5.618a1 1 0 011.447-.894L9 7m0 13l6-3m-6 3V7m6 10l4.553 2.276A1 1 0 0021 18.382V7.618a1 1 0 00-.553-.894L15 4m0 13V4m0 0L9 7"
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/>
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</svg>
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Select on Map
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</button>
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</div>
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{/* Error Messages */}
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{error && (
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<div className="bg-red-50 border border-red-200 rounded-lg p-3 mb-4">
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<div className="flex items-start">
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<svg className="h-5 w-5 text-red-400 mt-0.5" fill="currentColor" viewBox="0 0 20 20">
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<path fillRule="evenodd" d="M10 18a8 8 0 100-16 8 8 0 000 16zM8.707 7.293a1 1 0 00-1.414 1.414L8.586 10l-1.293 1.293a1 1 0 101.414 1.414L10 11.414l1.293 1.293a1 1 0 001.414-1.414L11.414 10l1.293-1.293a1 1 0 00-1.414-1.414L10 8.586 8.707 7.293z" clipRule="evenodd" />
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</svg>
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<p className="ml-2 text-sm text-red-700">{error}</p>
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</div>
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</div>
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)}
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{validationError && (
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<div className="bg-yellow-50 border border-yellow-200 rounded-lg p-3 mb-4">
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<div className="flex items-start">
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<svg className="h-5 w-5 text-yellow-400 mt-0.5" fill="currentColor" viewBox="0 0 20 20">
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<path fillRule="evenodd" d="M8.257 3.099c.765-1.36 2.722-1.36 3.486 0l5.58 9.92c.75 1.334-.213 2.98-1.742 2.98H4.42c-1.53 0-2.493-1.646-1.743-2.98l5.58-9.92zM11 13a1 1 0 11-2 0 1 1 0 012 0zm-1-8a1 1 0 00-1 1v3a1 1 0 002 0V6a1 1 0 00-1-1z" clipRule="evenodd" />
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</svg>
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<p className="ml-2 text-sm text-yellow-700">{validationError}</p>
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</div>
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</div>
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)}
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{/* Selected Location Display */}
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{selectedLocation && locationSource && (
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<div className="bg-green-50 border border-green-200 rounded-lg p-4 mb-4">
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<div className="flex items-start">
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<svg className="h-5 w-5 text-green-400 mt-0.5" fill="currentColor" viewBox="0 0 20 20">
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<path fillRule="evenodd" d="M10 18a8 8 0 100-16 8 8 0 000 16zm3.707-9.293a1 1 0 00-1.414-1.414L9 10.586 7.707 9.293a1 1 0 00-1.414 1.414l2 2a1 1 0 001.414 0l4-4z" clipRule="evenodd" />
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</svg>
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<div className="ml-3 flex-1">
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<h4 className="text-sm font-medium text-green-800">Location Selected</h4>
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<div className="mt-2 text-sm text-green-700 space-y-1">
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<p>
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<span className="font-medium">Coordinates:</span>{' '}
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{selectedLocation.latitude.toFixed(6)}, {selectedLocation.longitude.toFixed(6)}
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</p>
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<p>
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<span className="font-medium">Source:</span>{' '}
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{getLocationSourceLabel(locationSource)}
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</p>
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{accuracy && (
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<p>
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<span className="font-medium">Accuracy:</span>{' '}
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±{accuracy.toFixed(0)}m ({getAccuracyLabel(accuracy)})
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</p>
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)}
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</div>
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</div>
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</div>
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</div>
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)}
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{/* Map Picker */}
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{showMap && (
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<div className="border border-gray-300 rounded-lg overflow-hidden">
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<div className="bg-gray-100 px-4 py-2 border-b border-gray-300">
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<p className="text-sm text-gray-700">
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Click on the map to select a location, or drag the marker to adjust.
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</p>
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</div>
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<div ref={mapRef} className="w-full h-96" />
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</div>
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)}
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{/* Help Text */}
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{!selectedLocation && (
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<p className="text-sm text-gray-500 mt-2">
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Location will be auto-populated from photo EXIF data if available. Otherwise, use your device GPS or select a location on the map.
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</p>
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)}
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</div>
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</div>
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);
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}
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@@ -65,3 +65,76 @@ interface PhotoMetadata {
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- **1.4**: Accepts photographs with minimum resolution validation
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- **1.5**: Extracts and displays original photo capture time
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- **8.3**: Provides mobile-friendly interface with touch support
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## LocationSelector
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An interactive location selection component that supports multiple input methods: EXIF data from photos, device GPS, and manual map selection.
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### Features
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- **Auto-population from EXIF**: Automatically extracts and uses GPS coordinates from uploaded photos
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- **Device GPS capture**: One-click button to use device's current location
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- **Interactive map picker**: Leaflet-based map for manual location selection with draggable marker
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- **Ireland validation**: Validates that selected coordinates are within Ireland's boundaries
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- **Accuracy indicator**: Displays GPS accuracy with quality labels (Excellent, Good, Fair, Poor)
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- **Visual feedback**: Clear indicators showing selected location, source, and coordinates
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- **Error handling**: User-friendly error messages for validation failures and GPS errors
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### Usage
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```typescript
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import { LocationSelector } from '@/components/report';
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import { PhotoMetadata } from '@/components/report';
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import { Coordinates, LocationSource } from '@/types';
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function ReportForm() {
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const [photos, setPhotos] = useState<PhotoMetadata[]>([]);
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const handleLocationChange = (
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location: Coordinates,
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source: LocationSource,
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accuracy?: number
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) => {
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console.log('Location:', location);
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console.log('Source:', source); // 'exif', 'gps', or 'manual'
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console.log('Accuracy:', accuracy); // GPS accuracy in meters (if available)
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};
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return (
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<LocationSelector
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photos={photos}
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onLocationChange={handleLocationChange}
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initialLocation={undefined} // Optional: pre-populate location
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/>
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);
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}
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```
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### Props
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- `photos`: Array of PhotoMetadata objects (from PhotoUpload component)
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- `onLocationChange`: Callback function called when location is selected or changed
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- `initialLocation`: Optional initial coordinates to pre-populate the selector
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### Location Sources
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- **exif**: Location extracted from photo EXIF metadata
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- **gps**: Location obtained from device GPS
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- **manual**: Location selected manually on the map
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### Ireland Coordinate Bounds
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The component validates coordinates against Ireland's geographical boundaries:
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- Latitude: 51.4° to 55.4°
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- Longitude: -10.5° to -5.5°
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### Requirements Satisfied
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- **1.1**: Captures geographical coordinates with accuracy within 10 meters (via GPS)
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- **1.2**: Auto-populates location from EXIF data when available
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- **1.3**: Prompts for location via device GPS or manual map selection when EXIF is unavailable
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- **8.2**: Accesses device GPS capabilities to auto-populate report location coordinates
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### Demo
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Visit `/demo/location-selector` to test the component with all three location input methods.
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@@ -1,2 +1,3 @@
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export { PhotoUpload } from './PhotoUpload';
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export type { PhotoMetadata } from './PhotoUpload';
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export { LocationSelector } from './LocationSelector';
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Reference in New Issue
Block a user