wrmap.js

   1 "use strict";
   2
   3 function init_wrmap(i, jq_map) {
   4         jq_map = $(jq_map);
   5         OpenLayers.ImgPath = jq_map.attr('data-img-path'); // e.g. "/mediawiki/extensions/wrmap/openlayers/img/"
   6         var json_string = jq_map.text();
   7         jq_map.empty(); // once parsed, remove geojson string from the map element.
   8
   9         // extract, tranform and split features to layers
  10         var EPSG4326 = new OpenLayers.Projection("EPSG:4326"); // lon/lat
  11         var EPSG3857 = new OpenLayers.Projection("EPSG:3857"); // google
  12         var format_json = new OpenLayers.Format.JSON();
  13         var json_js = format_json.read(json_string);
  14         var format_geojson = new OpenLayers.Format.GeoJSON();
  15         var features_all = format_geojson.read(json_js);
  16         var features_path = new Array();
  17         var features_point = new Array();
  18         for (var i = 0; i != features_all.length; ++i) {
  19                 var feature = features_all[i];
  20                 feature.geometry.transform(EPSG4326, EPSG3857);
  21                 if (feature.geometry instanceof OpenLayers.Geometry.Point) features_point.push(feature);
  22                 else features_path.push(feature);
  23         }
  24
  25
  26         // background layer
  27         // ----------------
  28         var layer_map = new OpenLayers.Layer.Google("Google Physical", {
  29                 type: google.maps.MapTypeId.TERRAIN
  30         });
  31
  32         // // Alternative: OSM map
  33         // var layer_map = new OpenLayers.Layer.OSM();
  34
  35         // // Alternative: Microsoft Bing Maps
  36         // var layer_map = new OpenLayers.Layer.Bing({
  37         //     type: "Road",
  38         //     key: "AgPH3SlIXAwajrJKf0FORQyhTqsP8KIlvtN6RKfvxe6fOB6q6-HFmg8EOFm7LSOA"});
  39
  40         // // Alternative: Dummy base layer
  41         // var layer_map = new OpenLayers.Layer.Vector("Base Layer", {
  42         //     isBaseLayer: true});
  43
  44
  45         // path layer
  46         // ----------
  47         var layer_path = new OpenLayers.Layer.Vector("Path", {
  48                 styleMap: new OpenLayers.StyleMap(new OpenLayers.Style({
  49                                 strokeColor: '${getStrokeColor}',
  50                                 strokeWidth: '${getStrokeWidth}'
  51                         }, {
  52                                 context: {
  53                                         getStrokeColor: function(feature) {
  54                                                 if (feature.attributes.strokeColor !== undefined) return feature.attributes.strokeColor;
  55                                                 if (feature.attributes.type == 'rodelbahn') return '#014e9a';
  56                                                 if (feature.attributes.type == 'gehweg') return '#e98401';
  57                                                 if (feature.attributes.type == 'alternative') return '#7f7fff';
  58                                                 if (feature.attributes.type == 'lift') return '#000000';
  59                                                 if (feature.attributes.type == 'anfahrt') return '#e1e100';
  60                                                 return '#ee9900';
  61                                         },
  62                                         getStrokeWidth: function(feature) {
  63                                                 if (feature.attributes.strokeWidth !== undefined) return feature.attributes.strokeWidth;
  64                                                 if (feature.attributes.type == 'lift' || feature.attributes.type == 'anfahrt') return 3;
  65                                                 return 6;
  66                                         }
  67                                 }
  68                         }))
  69         });
  70
  71
  72         // point layer
  73         // -----------
  74         var filter_point_sledrun = new OpenLayers.Filter.Comparison({
  75                 type: OpenLayers.Filter.Comparison.EQUAL_TO,
  76                 property: 'type',
  77                 value: 'sledrun'
  78         });
  79
  80         var layer_point = new OpenLayers.Layer.Vector("Point", {
  81                 styleMap: new OpenLayers.StyleMap({
  82                         'default': new OpenLayers.Style({
  83                                         graphicZIndex: 12,
  84                                         backgroundGraphicZIndex: 11,
  85                                 }, {
  86                                         context: {
  87                                                 // the following context functions should only be available in the rule that uses them,
  88                                                 // but the rule dependent contexts are ignored by OpenLayers (I think that's a bug)
  89                                                 getCondition: function(feature) {
  90                                                         if (feature.condition === undefined) return 0;
  91                                                         return feature.condition;
  92                                                 },
  93                                                 getSymbol: function(feature) {
  94                                                         var name = feature.attributes.type;
  95                                                         return name;
  96                                                 }
  97                                         },
  98                                         rules: [
  99                                                 new OpenLayers.Rule({
 100                                                         filter: filter_point_sledrun,
 101                                                         symbolizer: {
 102                                                                 externalGraphic: '/vorlagen/bahnzustand${getCondition}_0.png',
 103                                                                 graphicWidth: 17,
 104                                                                 graphicHeight: 17,
 105                                                                 graphicXOffset: -8,
 106                                                                 graphicYOffset: -8,
 107                                                                 backgroundGraphic: "/vorlagen/gmap_rodelbahn_c_s.png",
 108                                                                 backgroundWidth: 23,
 109                                                                 backgroundHeight: 23,
 110                                                                 backgroundXOffset: -8,
 111                                                                 backgroundYOffset: -8,
 112                                                         }
 113                                                 }),
 114                                                 new OpenLayers.Rule({
 115                                                         elseFilter: true,
 116                                                         symbolizer: {
 117                                                                 externalGraphic: '/vorlagen/gmap_${getSymbol}.png',
 118                                                                 graphicWidth: 20,
 119                                                                 graphicHeight: 34,
 120                                                                 graphicXOffset: -10,
 121                                                                 graphicYOffset: -33,
 122                                                         }
 123                                                 })
 124                                         ]
 125                                 }),
 126                         highlight: new OpenLayers.Style({
 127                                         label: "${getTitle}",
 128                                         labelOutlineColor: "white",
 129                                         fontWeight: "bold"
 130                                 }, {
 131                                         context: {
 132                                                 getTitle: function(feature) {
 133                                                         var title = '';
 134                                                         if (feature.attributes.type != 'point') {
 135                                                                 title = feature.attributes.type;
 136                                                                 title = title.charAt(0).toUpperCase() + title.slice(1); // First letter uppercase
 137                                                                 if (feature.attributes.name !== undefined) title += ': ';
 138                                                         }
 139                                                         if (feature.attributes.name !== undefined) title += feature.attributes.name;
 140                                                         return title;
 141                                                 }
 142                                         },
 143                                         rules: [
 144                                                 new OpenLayers.Rule({
 145                                                         filter: filter_point_sledrun,
 146                                                         symbolizer: {
 147                                                                 label: "${name}",
 148                                                                 labelYOffset: 14
 149                                                         }
 150                                                 }),
 151                                                 new OpenLayers.Rule({
 152                                                         elseFilter: true,
 153                                                         symbolizer: {
 154                                                                 labelYOffset: 40
 155                                                         }
 156                                                 })
 157                                         ]
 158                                 })
 159                 }),
 160                 rendererOptions: {yOrdering: true}
 161         });
 162
 163
 164         // map itself
 165         // ----------
 166         var lon = json_js.properties.lon;
 167         var lat = json_js.properties.lat;
 168         var zoom = json_js.properties.zoom;
 169         if (zoom === undefined) zoom = 10; // default zoom
 170         var map = new OpenLayers.Map(jq_map.context, {
 171                 projection: EPSG3857,
 172                 displayProjection: EPSG4326,
 173                 units: "m",
 174                 theme: null,
 175                 layers: [layer_map, layer_path, layer_point],
 176                 center: new OpenLayers.LonLat(lon, lat).transform(EPSG4326, EPSG3857),
 177                 zoom: zoom
 178         });
 179
 180
 181         // add features
 182         // if this would be done before the layer is added to the map, the features are not added
 183         layer_path.addFeatures(features_path);
 184         layer_point.addFeatures(features_point);
 185
 186         // disable mouse wheel zoom
 187         var navigation_control = map.getControlsByClass('OpenLayers.Control.Navigation')[0];
 188         navigation_control.disableZoomWheel();
 189
 190         // layer switcher
 191         // map.addControl(new OpenLayers.Control.LayerSwitcher());
 192
 193         // print sledrun name when mouse moves over it
 194         map.addControl(new OpenLayers.Control.SelectFeature(layer_point, {
 195                 hover: true,
 196                 highlightOnly: true,
 197                 autoActivate: true,
 198                 renderIntent: "highlight"
 199         }));
 200
 201         // show popup when user clicks on a sledrun icon
 202         map.addControl(new OpenLayers.Control.SelectFeature(layer_point, {
 203                 autoActivate: true,
 204                 toggle: true,
 205                 onSelect: function(feature) {
 206                         var popup_text = '';
 207                         if (feature.attributes.type == 'sledrun') {
 208                                 popup_text += "<h2>" + feature.attributes.name + '</h2>\n' +
 209                                 '<ul>\n' +
 210                                 '<li><a href="' + feature.attributes.wiki + '">Details zur Rodelbahn</a></li>\n' +
 211                                 '<li>Rodelbahnzustand<br/>';
 212                                 if (feature.attributes.condition !== undefined) {
 213                                         var condition_text = {1: 'Sehr gut', 2: 'Gut', 3: 'Mittelm&auml;&szlig;ig', 4: 'Schlecht', 5: 'Geht nicht'};
 214                                         var year_month_day = feature.attributes.date_report.split('-');
 215                                         popup_text += '<a href="' + feature.attributes.wiki + '#Eintr.C3.A4ge">' + condition_text[feature.attributes.condition] + '</a> ' +
 216                                         '<small>' + year_month_day[2] + '.' + year_month_day[1] + '.</small> ' +
 217                                         '<em><a href="' + feature.attributes.wiki + '#Eintragen">Neu</a></em>';
 218                                 } else {
 219                                         popup_text += '<em><a href="' + feature.attributes.wiki + '#Eintragen">Bitte eintragen</a></em>';
 220                                 }
 221                                 popup_text += '</li>\n</ul>\n';
 222                         } else if (feature.attributes.wiki !== undefined) {
 223                                 if (feature.attributes.name != undefined) popup_text += '<h2>' + feature.attributes.name + '</h2>\n';
 224                                 popup_text += '<p><a href="' + feature.attributes.wiki + '">Details</a></p>\n';
 225                         } else return;
 226
 227                         // Open popup
 228                         var selectFeatureControl = this;
 229                         var popup = new OpenLayers.Popup.FramedCloud('sledruninfopopup_' + feature.attributes.wiki,
 230                         feature.geometry.getBounds().getCenterLonLat(),
 231                         null,
 232                         popup_text,
 233                         null, true, function(event) {
 234                                 // onPopupClose
 235                                 selectFeatureControl.unselectAll();
 236                         });
 237                         feature.popup = popup;
 238                         map.addPopup(popup);
 239                 },
 240                 onUnselect: function(feature) {
 241                         if (feature.popup === null) return;
 242
 243                         // Close popup
 244                         map.removePopup(feature.popup);
 245                         feature.popup.destroy();
 246                         feature.popup = null;
 247                 }
 248         }));
 249 }
 250
 251
 252 function init_wrmaps() {
 253         var jq_maps = $('.wrmap'); // all wrmap <div> elements
 254         jq_maps.each(init_wrmap);
 255 }
 256
 257
 258 $(document).ready(init_wrmaps);
 259