website/js/nominatim-ui.js

   1 var map;
   2 var last_click_latlng;
   3
   4 function parse_and_normalize_geojson_string(raw_string){
   5     // normalize places the geometry into a featurecollection, similar to
   6     // https://github.com/mapbox/geojson-normalize
   7     var parsed_geojson = {
   8         type: "FeatureCollection",
   9         features: [
  10             {
  11                 type: "Feature",
  12                 geometry: JSON.parse(raw_string),
  13                 properties: {}
  14             }
  15         ]
  16     };
  17     return parsed_geojson;
  18 }
  19
  20 jQuery(document).ready(function(){
  21
  22     if ( !$('#search-page,#reverse-page').length ){ return; }
  23
  24     var is_reverse_search = !!( $('#reverse-page').length );
  25
  26     $('#q').focus();
  27
  28     map = new L.map('map', {
  29                 attributionControl: (nominatim_map_init.tile_attribution && nominatim_map_init.tile_attribution.length),
  30                 scrollWheelZoom:    true, // !L.Browser.touch,
  31                 touchZoom:          false
  32             });
  33
  34     L.tileLayer(nominatim_map_init.tile_url, {
  35         noWrap: true, // otherwise we end up with click coordinates like latitude -728
  36         // moved to footer
  37         attribution: (nominatim_map_init.tile_attribution || null ) //'&copy; <a href="http://osm.org/copyright">OpenStreetMap</a> contributors'
  38     }).addTo(map);
  39
  40     map.setView([nominatim_map_init.lat, nominatim_map_init.lon], nominatim_map_init.zoom);
  41
  42     var osm2 = new L.TileLayer(nominatim_map_init.tile_url, {minZoom: 0, maxZoom: 13, attribution: (nominatim_map_init.tile_attribution || null )});
  43     var miniMap = new L.Control.MiniMap(osm2, {toggleDisplay: true}).addTo(map);
  44
  45     if ( is_reverse_search ){
  46         // We don't need a marker, but an L.circle instance changes radius once you zoom in/out
  47         var cm = L.circleMarker([nominatim_map_init.lat,nominatim_map_init.lon], { radius: 5, weight: 2, fillColor: '#ff7800', color: 'red', opacity: 0.75, clickable: false});
  48         cm.addTo(map);
  49     }
  50
  51     var MapPositionControl = L.Control.extend({
  52             options: {
  53                     position: 'topright'
  54             },
  55
  56             onAdd: function (map) {
  57                     var container = L.DomUtil.create('div', 'my-custom-control');
  58
  59                     $(container).text('show map bounds').addClass('leaflet-bar btn btn-sm btn-default').on('click', function(e){
  60                         e.preventDefault();
  61                         e.stopPropagation();
  62                         $('#map-position').show();
  63                         $(container).hide();
  64                     });
  65                     $('#map-position-close a').on('click', function(e){
  66                         e.preventDefault();
  67                         e.stopPropagation();
  68                         $('#map-position').hide();
  69                         $(container).show();
  70                     });
  71
  72                     return container;
  73             }
  74     });
  75
  76     map.addControl(new MapPositionControl());
  77
  78
  79     function display_map_position(mouse_lat_lng){
  80
  81         html_mouse = "mouse position " + (mouse_lat_lng ? [mouse_lat_lng.lat.toFixed(5), mouse_lat_lng.lng.toFixed(5)].join(',') : '-');
  82         html_click = "last click: " + (last_click_latlng ? [last_click_latlng.lat.toFixed(5),last_click_latlng.lng.toFixed(5)].join(',') : '-');
  83
  84         html_center =
  85             "map center: " +
  86             map.getCenter().lat.toFixed(5) + ',' + map.getCenter().lng.toFixed(5) +
  87             " <a target='_blank' href='" + map_link_to_osm() + "'>view on osm.org</a>";
  88
  89         html_zoom = "map zoom: " + map.getZoom();
  90
  91         html_viewbox = "viewbox: " + map_viewbox_as_string();
  92
  93         $('#map-position-inner').html([html_center,html_zoom,html_viewbox,html_click,html_mouse].join('<br/>'));
  94
  95         var reverse_params = {
  96             lat: map.getCenter().lat.toFixed(5),
  97             lon: map.getCenter().lng.toFixed(5),
  98             zoom: map.getZoom(),
  99             format: 'html'
 100         }
 101         $('#switch-to-reverse').attr('href', 'reverse.php?' + $.param(reverse_params));
 102
 103         $('input#use_viewbox').trigger('change');
 104     }
 105
 106     function update_viewbox_field(){
 107         // hidden HTML field
 108         $('input[name=viewbox]').val( $('input#use_viewbox').prop('checked') ? map_viewbox_as_string() : '');
 109     }
 110
 111     map.on('move', function(e) {
 112         display_map_position();
 113         update_viewbox_field();
 114     });
 115
 116     map.on('mousemove', function(e) {
 117         display_map_position(e.latlng);
 118     });
 119
 120     map.on('click', function(e) {
 121         last_click_latlng = e.latlng;
 122         display_map_position();
 123     });
 124
 125     map.on('load', function(e){
 126         display_map_position();
 127     });
 128
 129
 130     $('input#use_viewbox').on('change', function(){
 131         update_viewbox_field();
 132     });
 133
 134
 135
 136     function map_viewbox_as_string() {
 137         // since .toBBoxString() doesn't round numbers
 138         return [
 139             map.getBounds().getSouthWest().lng.toFixed(5), // left
 140             map.getBounds().getNorthEast().lat.toFixed(5), // top
 141             map.getBounds().getNorthEast().lng.toFixed(5), // right
 142             map.getBounds().getSouthWest().lat.toFixed(5)  // bottom
 143         ].join(',');
 144     }
 145     function map_link_to_osm(){
 146         return "https://openstreetmap.org/#map=" + map.getZoom() + "/" + map.getCenter().lat + "/" + map.getCenter().lng;
 147     }
 148
 149     function get_result_element(position){
 150         return $('.result').eq(position);
 151     }
 152     function marker_for_result(result){
 153         return L.marker([result.lat,result.lon], {riseOnHover:true,title:result.name });
 154     }
 155     function circle_for_result(result){
 156         return L.circleMarker([result.lat,result.lon], { radius: 10, weight: 2, fillColor: '#ff7800', color: 'blue', opacity: 0.75, clickable: !is_reverse_search});
 157     }
 158
 159     var layerGroup = new L.layerGroup().addTo(map);
 160     function highlight_result(position, bool_focus){
 161         var result = nominatim_results[position];
 162         if (!result){ return }
 163         var result_el = get_result_element(position);
 164
 165         $('.result').removeClass('highlight');
 166         result_el.addClass('highlight');
 167
 168         layerGroup.clearLayers();
 169
 170         if (result.lat){
 171             var circle = circle_for_result(result);
 172             circle.on('click', function(){
 173                 highlight_result(position);
 174             });
 175             layerGroup.addLayer(circle);
 176         }
 177         if (result.aBoundingBox){
 178
 179             var bounds = [[result.aBoundingBox[0]*1,result.aBoundingBox[2]*1], [result.aBoundingBox[1]*1,result.aBoundingBox[3]*1]];
 180             map.fitBounds(bounds);
 181
 182             if (result.asgeojson && result.asgeojson.match(/(Polygon)|(Line)/) ){
 183
 184                 var geojson_layer = L.geoJson(
 185                     parse_and_normalize_geojson_string(result.asgeojson),
 186                     {
 187                         // http://leafletjs.com/reference-1.0.3.html#path-option
 188                         style: function(feature) {
 189                             return { interactive: false, color: 'blue' };
 190                         }
 191                     }
 192                 );
 193                 layerGroup.addLayer(geojson_layer);
 194             }
 195             else {
 196                 // var layer = L.rectangle(bounds, {color: "#ff7800", weight: 1} );
 197                 // layerGroup.addLayer(layer);
 198             }
 199         }
 200         else {
 201             var result_coord = L.latLng(result.lat, result.lon);
 202             if ( result_coord ){
 203                 if ( is_reverse_search ){
 204                     // make sure the search coordinates are in the map view as well
 205                     map.fitBounds([result_coord, [nominatim_map_init.lat,nominatim_map_init.lon]], {padding: [50,50], maxZoom: map.getZoom()});
 206
 207                     // better, but causes a leaflet warning
 208                     // map.panInsideBounds([[result.lat,result.lon], [nominatim_map_init.lat,nominatim_map_init.lon]], {animate: false});
 209                 }
 210                 else {
 211                     map.panTo(result_coord, result.zoom || nominatim_map_init.zoom);
 212                 }
 213             }
 214         }
 215
 216         // var crosshairIcon = L.icon({
 217         //  iconUrl:     'images/crosshair.png',
 218         //  iconSize:    [12, 12],
 219         //  iconAnchor:  [6, 6],
 220         // });
 221         // var crossMarker = new L.Marker([result.lat,result.lon], { icon: crosshairIcon, clickable: false});
 222         // layerGroup.addLayer(crossMarker);
 223
 224
 225
 226         if (bool_focus){
 227             $('#map').focus();
 228         }
 229     }
 230
 231
 232     $('.result').on('click', function(e){
 233         highlight_result($(this).data('position'), true);
 234     });
 235
 236     if ( is_reverse_search ){
 237         map.on('click', function(e){
 238             $('form input[name=lat]').val( e.latlng.lat);
 239             $('form input[name=lon]').val( e.latlng.lng);
 240             $('form').submit();
 241         });
 242
 243         $('#switch-coords').on('click', function(e){
 244             e.preventDefault();
 245             e.stopPropagation();
 246             var lat = $('form input[name=lat]').val();
 247             var lon = $('form input[name=lon]').val();
 248             $('form input[name=lat]').val(lon);
 249             $('form input[name=lon]').val(lat);
 250             $('form').submit();
 251         });
 252     } else {
 253         var search_params = new URLSearchParams(location.search);
 254         var viewbox = search_params.get('viewbox');
 255         if (viewbox) {
 256             var coords = viewbox.split(','); // <x1>,<y1>,<x2>,<y2>
 257             var bounds = L.latLngBounds([coords[1], coords[0]], [coords[3], coords[2]]);
 258             L.rectangle(bounds, {color: "#69d53e", weight: 3, dashArray: '5 5', opacity: 0.8, fill: false}).addTo(map);
 259         }
 260     }
 261
 262     highlight_result(0, false);
 263
 264     // common mistake is to copy&paste latitude and longitude into the 'lat' search box
 265     $('form input[name=lat]').on('change', function(){
 266         var coords = $(this).val().split(',');
 267         if (coords.length == 2) {
 268             $(this).val(L.Util.trim(coords[0]));
 269             $(this).siblings('input[name=lon]').val(L.Util.trim(coords[1]));
 270         }
 271     });
 272
 273 });
 274
 275
 276 jQuery(document).ready(function(){
 277
 278     if ( !$('#details-page').length ){ return; }
 279
 280
 281         map = new L.map('map', {
 282                     // center: [nominatim_map_init.lat, nominatim_map_init.lon],
 283                     // zoom:   nominatim_map_init.zoom,
 284                     attributionControl: (nominatim_map_init.tile_attribution && nominatim_map_init.tile_attribution.length),
 285                     scrollWheelZoom:    true, // !L.Browser.touch,
 286                     touchZoom:          false,
 287                 });
 288
 289
 290         L.tileLayer(nominatim_map_init.tile_url, {
 291             // moved to footer
 292             attribution: (nominatim_map_init.tile_attribution || null ) //'&copy; <a href="http://osm.org/copyright">OpenStreetMap</a> contributors'
 293         }).addTo(map);
 294
 295         var layerGroup = new L.layerGroup().addTo(map);
 296
 297         var circle = L.circleMarker([nominatim_result.lat,nominatim_result.lon], { radius: 10, weight: 2, fillColor: '#ff7800', color: 'blue', opacity: 0.75});
 298         map.addLayer(circle);
 299
 300         if ( nominatim_result.asgeojson ){
 301
 302             var geojson_layer = L.geoJson(
 303                 parse_and_normalize_geojson_string(nominatim_result.asgeojson),
 304                 {
 305                     // http://leafletjs.com/reference-1.0.3.html#path-option
 306                     style: function(feature) {
 307                         return { interactive: false, color: 'blue' };
 308                     }
 309                 }
 310             );
 311             map.addLayer(geojson_layer);
 312             map.fitBounds(geojson_layer.getBounds());
 313         } else {
 314             map.setView([nominatim_result.lat,nominatim_result.lon],10);
 315         }
 316
 317         var osm2 = new L.TileLayer(nominatim_map_init.tile_url, {minZoom: 0, maxZoom: 13, attribution: (nominatim_map_init.tile_attribution || null )});
 318         var miniMap = new L.Control.MiniMap(osm2, {toggleDisplay: true}).addTo(map);
 319
 320
 321 });
 322