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 format_json = new OpenLayers.Format.JSON();
  15         var json_js = format_json.read(json_string);
  16         var format_geojson = new OpenLayers.Format.GeoJSON();
  17         var features_all = format_geojson.read(json_js);
  18         var features_path = new Array();
  19         var features_point = new Array();
  20         for (var i = 0; i != features_all.length; ++i) {
  21                 var feature = features_all[i];
  22                 feature.geometry.transform(EPSG4326, EPSG3857);
  23                 if (feature.geometry instanceof OpenLayers.Geometry.Point) features_point.push(feature);
  24                 else features_path.push(feature);
  25         }
  26
  27
  28         // background layer
  29         // ----------------
  30         var layer_map = new OpenLayers.Layer.Google("Google Physical", {
  31                 type: google.maps.MapTypeId.TERRAIN
  32         });
  33
  34         // // Alternative: OSM map
  35         // var layer_map = new OpenLayers.Layer.OSM();
  36
  37         // // Alternative: Microsoft Bing Maps
  38         // var layer_map = new OpenLayers.Layer.Bing({
  39         //     type: "Road",
  40         //     key: "AgPH3SlIXAwajrJKf0FORQyhTqsP8KIlvtN6RKfvxe6fOB6q6-HFmg8EOFm7LSOA"});
  41
  42         // // Alternative: Dummy base layer
  43         // var layer_map = new OpenLayers.Layer.Vector("Base Layer", {
  44         //     isBaseLayer: true});
  45
  46
  47         // path layer
  48         // ----------
  49         var layer_path = new OpenLayers.Layer.Vector("Path", {
  50                 styleMap: new OpenLayers.StyleMap(new OpenLayers.Style({
  51                                 strokeColor: '${getStrokeColor}',
  52                                 strokeWidth: '${getStrokeWidth}'
  53                         }, {
  54                                 context: {
  55                                         getStrokeColor: function(feature) {
  56                                                 if (feature.attributes.strokeColor !== undefined) return feature.attributes.strokeColor;
  57                                                 if (feature.attributes.type == 'rodelbahn') return '#014e9a';
  58                                                 if (feature.attributes.type == 'gehweg') return '#e98401';
  59                                                 if (feature.attributes.type == 'alternative') return '#7f7fff';
  60                                                 if (feature.attributes.type == 'lift') return '#000000';
  61                                                 if (feature.attributes.type == 'anfahrt') return '#e1e100';
  62                                                 return '#ee9900';
  63                                         },
  64                                         getStrokeWidth: function(feature) {
  65                                                 if (feature.attributes.strokeWidth !== undefined) return feature.attributes.strokeWidth;
  66                                                 if (feature.attributes.type == 'lift' || feature.attributes.type == 'anfahrt') return 3;
  67                                                 return 6;
  68                                         }
  69                                 }
  70                         }))
  71         });
  72
  73
  74         // point layer
  75         // -----------
  76         var filter_point_sledrun = new OpenLayers.Filter.Comparison({
  77                 type: OpenLayers.Filter.Comparison.EQUAL_TO,
  78                 property: 'type',
  79                 value: 'sledrun'
  80         });
  81
  82         var layer_point = new OpenLayers.Layer.Vector("Point", {
  83                 styleMap: new OpenLayers.StyleMap({
  84                         'default': new OpenLayers.Style({
  85                                         graphicZIndex: 12,
  86                                         backgroundGraphicZIndex: 11,
  87                                 }, {
  88                                         context: {
  89                                                 // the following context functions should only be available in the rule that uses them,
  90                                                 // but the rule dependent contexts are ignored by OpenLayers (I think that's a bug)
  91                                                 getCondition: function(feature) {
  92                                                         if (feature.condition === undefined) return 0;
  93                                                         return feature.condition;
  94                                                 },
  95                                                 getSymbol: function(feature) {
  96                                                         var name = feature.attributes.type;
  97                                                         return name;
  98                                                 }
  99                                         },
 100                                         rules: [
 101                                                 new OpenLayers.Rule({
 102                                                         filter: filter_point_sledrun,
 103                                                         symbolizer: {
 104                                                                 externalGraphic: '/vorlagen/bahnzustand${getCondition}_0.png',
 105                                                                 graphicWidth: 17,
 106                                                                 graphicHeight: 17,
 107                                                                 graphicXOffset: -8,
 108                                                                 graphicYOffset: -8,
 109                                                                 backgroundGraphic: "/vorlagen/gmap_rodelbahn_c_s.png",
 110                                                                 backgroundWidth: 23,
 111                                                                 backgroundHeight: 23,
 112                                                                 backgroundXOffset: -8,
 113                                                                 backgroundYOffset: -8,
 114                                                         }
 115                                                 }),
 116                                                 new OpenLayers.Rule({
 117                                                         elseFilter: true,
 118                                                         symbolizer: {
 119                                                                 externalGraphic: '/vorlagen/gmap_${getSymbol}.png',
 120                                                                 graphicWidth: 20,
 121                                                                 graphicHeight: 34,
 122                                                                 graphicXOffset: -10,
 123                                                                 graphicYOffset: -33,
 124                                                         }
 125                                                 })
 126                                         ]
 127                                 }),
 128                         highlight: new OpenLayers.Style({
 129                                         label: "${getTitle}",
 130                                         labelOutlineColor: "white",
 131                                         fontWeight: "bold"
 132                                 }, {
 133                                         context: {
 134                                                 getTitle: function(feature) {
 135                                                         var title = '';
 136                                                         if (feature.attributes.type != 'point') {
 137                                                                 title = feature.attributes.type; // TODO: First letter uppercase
 138                                                                 if (feature.attributes.name !== undefined) title += ': ';
 139                                                         }
 140                                                         if (feature.attributes.name !== undefined) title += feature.attributes.name;
 141                                                         return title;
 142                                                 }
 143                                         },
 144                                         rules: [
 145                                                 new OpenLayers.Rule({
 146                                                         filter: filter_point_sledrun,
 147                                                         symbolizer: {
 148                                                                 label: "${name}",
 149                                                                 labelYOffset: 14
 150                                                         }
 151                                                 }),
 152                                                 new OpenLayers.Rule({
 153                                                         elseFilter: true,
 154                                                         symbolizer: {
 155                                                                 labelYOffset: 40
 156                                                         }
 157                                                 })
 158                                         ]
 159                                 })
 160                 }),
 161                 rendererOptions: {yOrdering: true}
 162         });
 163
 164
 165         // map itself
 166         // ----------
 167         var lon = json_js.properties.lon;
 168         var lat = json_js.properties.lat;
 169         var zoom = json_js.properties.zoom;
 170         if (zoom === undefined) zoom = 10; // default zoom
 171         var map = new OpenLayers.Map(jq_map.context, {
 172                 projection: EPSG3857,
 173                 displayProjection: EPSG4326,
 174                 units: "m",
 175                 theme: null,
 176                 layers: [layer_map, layer_path, layer_point],
 177                 center: new OpenLayers.LonLat(lon, lat).transform(EPSG4326, EPSG3857),
 178                 zoom: zoom
 179         });
 180
 181
 182         // add features
 183         // if this would be done before the layer is added to the map, the features are not added
 184         layer_path.addFeatures(features_path);
 185         layer_point.addFeatures(features_point);
 186
 187         // disable mouse wheel zoom
 188         var navigation_control = map.getControlsByClass('OpenLayers.Control.Navigation')[0];
 189         navigation_control.disableZoomWheel();
 190
 191         // layer switcher
 192         // map.addControl(new OpenLayers.Control.LayerSwitcher());
 193
 194         // print sledrun name when mouse moves over it
 195         map.addControl(new OpenLayers.Control.SelectFeature(layer_point, {
 196                 hover: true,
 197                 highlightOnly: true,
 198                 autoActivate: true,
 199                 renderIntent: "highlight"
 200         }));
 201
 202         // show popup when user clicks on a sledrun icon
 203         map.addControl(new OpenLayers.Control.SelectFeature(layer_point, {
 204                 autoActivate: true,
 205                 toggle: true,
 206                 onSelect: function(feature) {
 207                         var popup_text = '';
 208                         if (feature.attributes.type == 'sledrun') {
 209                                 popup_text += "<h2>" + feature.attributes.name + '</h2>\n' +
 210                                 '<ul>\n' +
 211                                 '<li><a href="' + feature.attributes.wiki + '">Details zur Rodelbahn</a></li>\n' +
 212                                 '<li>Rodelbahnzustand<br/>';
 213                                 if (feature.attributes.condition !== undefined) {
 214                                         var condition_text = {1: 'Sehr gut', 2: 'Gut', 3: 'Mittelm&auml;&szlig;ig', 4: 'Schlecht', 5: 'Geht nicht'};
 215                                         var year_month_day = feature.attributes.date_report.split('-');
 216                                         popup_text += '<a href="' + feature.attributes.wiki + '#Eintr.C3.A4ge">' + condition_text[feature.attributes.condition] + '</a> ' +
 217                                         '<small>' + year_month_day[2] + '.' + year_month_day[1] + '.</small> ' +
 218                                         '<em><a href="' + feature.attributes.wiki + '#Eintragen">Neu</a></em>';
 219                                 } else {
 220                                         popup_text += '<em><a href="' + feature.attributes.wiki + '#Eintragen">Bitte eintragen</a></em>';
 221                                 }
 222                                 popup_text += '</li>\n</ul>\n';
 223                         } else if (feature.attributes.wiki !== undefined) {
 224                                 if (feature.attributes.name != undefined) popup_text += '<h2>' + feature.attributes.name + '</h2>\n';
 225                                 popup_text += '<p><a href="' + feature.attributes.wiki + '">Details</a></p>\n';
 226                         } else return;
 227
 228                         // Open popup
 229                         var selectFeatureControl = this;
 230                         var popup = new OpenLayers.Popup.FramedCloud('sledruninfopopup_' + feature.attributes.wiki,
 231                         feature.geometry.getBounds().getCenterLonLat(),
 232                         null,
 233                         popup_text,
 234                         null, true, function(event) {
 235                                 // onPopupClose
 236                                 selectFeatureControl.unselectAll();
 237                         });
 238                         feature.popup = popup;
 239                         map.addPopup(popup);
 240                 },
 241                 onUnselect: function(feature) {
 242                         if (feature.popup === null) return;
 243
 244                         // Close popup
 245                         map.removePopup(feature.popup);
 246                         feature.popup.destroy();
 247                         feature.popup = null;
 248                 }
 249         }));
 250 }
 251
 252
 253 function init_wrmaps() {
 254         var jq_maps = $('.wrmap'); // all wrmap <div> elements
 255         jq_maps.each(init_wrmap);
 256 }
 257
 258
 259 $(document).ready(init_wrmaps);
 260