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