wrmap.js

   1 "use strict";
   2
   3 function init_wrmap(i, jq_map) {
   4         jq_map = $(jq_map);
   5         var jq_map_script = jq_map.children();
   6         OpenLayers.ImgPath = jq_map.attr('data-img-path'); // e.g. "/mediawiki/extensions/wrmap/openlayers/img/"
   7         var json_string = jq_map_script.text();
   8         jq_map_script.detach();
   9
  10
  11         // extract, tranform and split features to layers
  12         var EPSG4326 = new OpenLayers.Projection("EPSG:4326"); // lon/lat
  13         var EPSG3857 = new OpenLayers.Projection("EPSG:3857"); // google
  14         var POINT_NAME = {'sledrun': 'Rodelbahn', 'inn': 'Gasthaus', 'busstop': 'Haltestelle', 'carpark': 'Parkplatz', 'attention': 'Achtung', 'point': 'Punkt'};
  15         var format_json = new OpenLayers.Format.JSON();
  16         var json_js = format_json.read(json_string);
  17         var format_geojson = new OpenLayers.Format.GeoJSON();
  18         var features_all = format_geojson.read(json_js);
  19         var features_path = new Array();
  20         var features_point = new Array();
  21         for (var i = 0; i != features_all.length; ++i) {
  22                 var feature = features_all[i];
  23                 feature.geometry.transform(EPSG4326, EPSG3857);
  24                 if (feature.geometry instanceof OpenLayers.Geometry.Point) features_point.push(feature);
  25                 else features_path.push(feature);
  26         }
  27
  28
  29         // background layer
  30         // ----------------
  31         var layer_map = new OpenLayers.Layer.Google("Google Physical", {
  32                 type: google.maps.MapTypeId.TERRAIN
  33         });
  34
  35         // // Alternative: OSM map
  36         // var layer_map = new OpenLayers.Layer.OSM();
  37
  38         // // Alternative: Microsoft Bing Maps
  39         // var layer_map = new OpenLayers.Layer.Bing({
  40         //     type: "Road",
  41         //     key: "AgPH3SlIXAwajrJKf0FORQyhTqsP8KIlvtN6RKfvxe6fOB6q6-HFmg8EOFm7LSOA"});
  42
  43
  44         // path layer
  45         // ----------
  46         var layer_path = new OpenLayers.Layer.Vector("Path", {
  47                 styleMap: new OpenLayers.StyleMap(new OpenLayers.Style({
  48                                 strokeColor: '${getStrokeColor}',
  49                                 strokeWidth: '${getStrokeWidth}'
  50                         }, {
  51                                 context: {
  52                                         getStrokeColor: function(feature) {
  53                                                 if (feature.attributes.strokeColor !== undefined) return feature.attributes.strokeColor;
  54                                                 if (feature.attributes.type == 'sledrun') return '#014e9a';
  55                                                 if (feature.attributes.type == 'walk') return '#e98401';
  56                                                 if (feature.attributes.type == 'alternative') return '#7f7fff';
  57                                                 if (feature.attributes.type == 'lift') return '#000000';
  58                                                 return '#ee9900';
  59                                         },
  60                                         getStrokeWidth: function(feature) {
  61                                                 if (feature.attributes.strokeWidth !== undefined) return feature.attributes.strokeWidth;
  62                                                 if (feature.attributes.type == 'lift') return 3;
  63                                                 return 6;
  64                                         }
  65                                 }
  66                         }))
  67         });
  68
  69
  70         // point layer
  71         // -----------
  72         var filter_point_sledrun = new OpenLayers.Filter.Comparison({
  73                 type: OpenLayers.Filter.Comparison.EQUAL_TO,
  74                 property: 'type',
  75                 value: 'sledrun'
  76         });
  77
  78         var layer_point = new OpenLayers.Layer.Vector("Point", {
  79                 styleMap: new OpenLayers.StyleMap({
  80                         'default': new OpenLayers.Style({
  81                                         graphicZIndex: 12,
  82                                         backgroundGraphicZIndex: 11,
  83                                 }, {
  84                                         context: {
  85                                                 // the following context functions should only be available in the rule that uses them,
  86                                                 // but the rule dependent contexts are ignored by OpenLayers (I think that's a bug)
  87                                                 getCondition: function(feature) {
  88                                                         if (feature.condition === undefined) return 0;
  89                                                         return feature.condition;
  90                                                 },
  91                                                 getSymbol: function(feature) {
  92                                                         var name = POINT_NAME[feature.attributes.type];
  93                                                         if (feature.attributes.type == 'point' || name === undefined) return '';
  94                                                         return name;
  95                                                 }
  96                                         },
  97                                         rules: [
  98                                                 new OpenLayers.Rule({
  99                                                         filter: filter_point_sledrun,
 100                                                         symbolizer: {
 101                                                                 externalGraphic: '/vorlagen/bahnzustand${getCondition}_0.png',
 102                                                                 graphicWidth: 17,
 103                                                                 graphicHeight: 17,
 104                                                                 graphicXOffset: -8,
 105                                                                 graphicYOffset: -8,
 106                                                                 backgroundGraphic: "/vorlagen/gmap_rodelbahn_c_s.png",
 107                                                                 backgroundWidth: 23,
 108                                                                 backgroundHeight: 23,
 109                                                                 backgroundXOffset: -8,
 110                                                                 backgroundYOffset: -8,
 111                                                         }
 112                                                 }),
 113                                                 new OpenLayers.Rule({
 114                                                         elseFilter: true,
 115                                                         symbolizer: {
 116                                                                 externalGraphic: '/vorlagen/gmap${getSymbol}.png',
 117                                                                 graphicWidth: 20,
 118                                                                 graphicHeight: 34,
 119                                                                 graphicXOffset: -10,
 120                                                                 graphicYOffset: -33,
 121                                                         }
 122                                                 })
 123                                         ]
 124                                 }),
 125                         highlight: new OpenLayers.Style({
 126                                         label: "${getTitle}",
 127                                         labelOutlineColor: "white",
 128                                         fontWeight: "bold"
 129                                 }, {
 130                                         context: {
 131                                                 getTitle: function(feature) {
 132                                                         var title = '';
 133                                                         if (feature.attributes.type != 'point') {
 134                                                                 title = POINT_NAME[feature.attributes.type];
 135                                                                 if (feature.attributes.name !== undefined) title += ': ';
 136                                                         }
 137                                                         if (feature.attributes.name !== undefined) title += feature.attributes.name;
 138                                                         return title;
 139                                                 }
 140                                         },
 141                                         rules: [
 142                                                 new OpenLayers.Rule({
 143                                                         filter: filter_point_sledrun,
 144                                                         symbolizer: {
 145                                                                 label: "${name}",
 146                                                                 labelYOffset: 14
 147                                                         }
 148                                                 }),
 149                                                 new OpenLayers.Rule({
 150                                                         elseFilter: true,
 151                                                         symbolizer: {
 152                                                                 labelYOffset: 40
 153                                                         }
 154                                                 })
 155                                         ]
 156                                 })
 157                 }),
 158                 rendererOptions: {yOrdering: true}
 159         });
 160
 161
 162         // map itself
 163         // ----------
 164         var lon = parseFloat(jq_map.attr('data-center-lon'));
 165         var lat = parseFloat(jq_map.attr('data-center-lat'));
 166         var zoom = parseInt(jq_map.attr('data-zoom'));
 167         var map = new OpenLayers.Map(jq_map.context, {
 168                 projection: EPSG3857,
 169                 displayProjection: EPSG4326,
 170                 units: "m",
 171                 theme: null,
 172                 layers: [layer_map, layer_path, layer_point],
 173                 center: new OpenLayers.LonLat(lon, lat).transform(EPSG4326, EPSG3857),
 174                 zoom: zoom
 175         });
 176
 177
 178         // add features
 179         // if this would be done before the layer is added to the map, the features are not added
 180         layer_path.addFeatures(features_path);
 181         layer_point.addFeatures(features_point);
 182
 183         // disable mouse wheel zoom
 184         var navigation_control = map.getControlsByClass('OpenLayers.Control.Navigation')[0];
 185         navigation_control.disableZoomWheel();
 186
 187         // layer switcher
 188         // map.addControl(new OpenLayers.Control.LayerSwitcher());
 189
 190         // print sledrun name when mouse moves over it
 191         map.addControl(new OpenLayers.Control.SelectFeature(layer_point, {
 192                 hover: true,
 193                 highlightOnly: true,
 194                 autoActivate: true,
 195                 renderIntent: "highlight"
 196         }));
 197
 198         // show popup when user clicks on a sledrun icon
 199         map.addControl(new OpenLayers.Control.SelectFeature(layer_point, {
 200                 autoActivate: true,
 201                 toggle: true,
 202                 onSelect: function(feature) {
 203                         var popup_text = '';
 204                         if (feature.attributes.type == 'sledrun') {
 205                                 popup_text += "<h2>" + feature.attributes.name + '</h2>\n' +
 206                                 '<ul>\n' +
 207                                 '<li><a href="' + feature.attributes.wiki + '">Details zur Rodelbahn</a></li>\n' +
 208                                 '<li>Rodelbahnzustand<br/>';
 209                                 if (feature.attributes.condition !== undefined) {
 210                                         var condition_text = {1: 'Sehr gut', 2: 'Gut', 3: 'Mittelm&auml;&szlig;ig', 4: 'Schlecht', 5: 'Geht nicht'};
 211                                         var year_month_day = feature.attributes.date_report.split('-');
 212                                         popup_text += '<a href="' + feature.attributes.wiki + '#Eintr.C3.A4ge">' + condition_text[feature.attributes.condition] + '</a> ' +
 213                                         '<small>' + year_month_day[2] + '.' + year_month_day[1] + '.</small> ' +
 214                                         '<em><a href="' + feature.attributes.wiki + '#Eintragen">Neu</a></em>';
 215                                 } else {
 216                                         popup_text += '<em><a href="' + feature.attributes.wiki + '#Eintragen">Bitte eintragen</a></em>';
 217                                 }
 218                                 popup_text += '</li>\n</ul>\n';
 219                         } else if (feature.attributes.wiki !== undefined) {
 220                                 if (feature.attributes.name != undefined) popup_text += '<h2>' + feature.attributes.name + '</h2>\n';
 221                                 popup_text += '<p><a href="' + feature.attributes.wiki + '">Details</a></p>\n';
 222                         } else return;
 223
 224                         // Open popup
 225                         var selectFeatureControl = this;
 226                         var popup = new OpenLayers.Popup.FramedCloud('sledruninfopopup_' + feature.attributes.wiki,
 227                         feature.geometry.getBounds().getCenterLonLat(),
 228                         null,
 229                         popup_text,
 230                         null, true, function(event) {
 231                                 // onPopupClose
 232                                 selectFeatureControl.unselectAll();
 233                         });
 234                         feature.popup = popup;
 235                         map.addPopup(popup);
 236                 },
 237                 onUnselect: function(feature) {
 238                         if (feature.popup === null) return;
 239
 240                         // Close popup
 241                         map.removePopup(feature.popup);
 242                         feature.popup.destroy();
 243                         feature.popup = null;
 244                 }
 245         }));
 246 }
 247
 248
 249 function init_wrmaps() {
 250         var jq_maps = $('.wrmap'); // all wrmap <div> elements
 251         jq_maps.each(init_wrmap);
 252 }
 253
 254
 255 $(document).ready(init_wrmaps);
 256