wrmap.js

   1 "use strict";
   2
   3 // "User defined" popup class to be able to specify a minimum size for the popup,
   4 // so that Safari 7.0 displays it correctly (see ticket #89).
   5 OpenLayers.Popup.WrInfo = OpenLayers.Class(OpenLayers.Popup.FramedCloud, {
   6         minSize: new OpenLayers.Size(180, 260),
   7
   8         initialize: function(id, lonlat, contentSize, contentHTML, anchor, closeBox, closeCallback) {
   9                 OpenLayers.Popup.FramedCloud.prototype.initialize.apply(this, arguments);
  10         },
  11
  12         CLASS_NAME: "OpenLayers.Popup.WrInfo"
  13 });
  14
  15
  16 function init_wrmap(i, jq_map) {
  17         // define constants
  18         var EPSG4326 = new OpenLayers.Projection("EPSG:4326"); // lon/lat
  19         var EPSG3857 = new OpenLayers.Projection("EPSG:3857"); // google
  20
  21         // tool functions
  22         function createElement(tagName, attributes) {
  23                 var element = $(document.createElement(tagName));
  24                 if (attributes === undefined) return element;
  25                 for (var attribute in attributes) {
  26                         element.attr(attribute, attributes[attribute]);
  27                 }
  28                 return element;
  29         }
  30
  31         function appendElement(parentElement, tagName, attributes) {
  32                 if (attributes === undefined) attributes = {};
  33                 var element = createElement(tagName, attributes);
  34                 parentElement.append(element);
  35                 return element;
  36         }
  37
  38
  39         // extract geojson from map element and clear map element's content
  40         jq_map = $(jq_map);
  41         var ext_path = jq_map.attr('data-ext-path'); // e.g. '/mediawiki/extensions/wrmap'
  42         var img_path = ext_path + '/img';
  43         OpenLayers.ImgPath = ext_path + '/openlayers/img/'; // e.g. '/mediawiki/extensions/wrmap/openlayers/img/'
  44         var json_string = jq_map.children().last().text();
  45         jq_map.empty(); // once parsed, remove geojson string from the map element.
  46         var format_json = new OpenLayers.Format.JSON();
  47         var json_js = format_json.read(json_string);
  48         var format_geojson = new OpenLayers.Format.GeoJSON();
  49         var features_all = format_geojson.read(json_js);
  50
  51         // extract, tranform and split features to layers
  52         var features_path = new Array();
  53         var features_point = new Array();
  54         for (var i = 0; i != features_all.length; ++i) {
  55                 var feature = features_all[i];
  56                 feature.geometry.transform(EPSG4326, EPSG3857);
  57                 if (feature.geometry instanceof OpenLayers.Geometry.Point) features_point.push(feature);
  58                 else features_path.push(feature);
  59         }
  60
  61
  62         // background layer
  63         // ----------------
  64         var layer_map = new OpenLayers.Layer.Google("Google Physical", {
  65                 type: google.maps.MapTypeId.TERRAIN
  66         });
  67
  68         // // Alternative: OSM map
  69         // var layer_map = new OpenLayers.Layer.OSM();
  70
  71         // // Alternative: Microsoft Bing Maps
  72         // var layer_map = new OpenLayers.Layer.Bing({
  73         //     type: "Road",
  74         //     key: "AgPH3SlIXAwajrJKf0FORQyhTqsP8KIlvtN6RKfvxe6fOB6q6-HFmg8EOFm7LSOA"});
  75
  76         // // Alternative: Dummy base layer
  77         // var layer_map = new OpenLayers.Layer.Vector("Base Layer", {
  78         //     isBaseLayer: true});
  79
  80
  81         // path layer
  82         // ----------
  83         var layer_path = new OpenLayers.Layer.Vector("Path", {
  84                 styleMap: new OpenLayers.StyleMap(new OpenLayers.Style({
  85                                 strokeColor: '${getStrokeColor}',
  86                                 strokeWidth: '${getStrokeWidth}'
  87                         }, {
  88                                 context: {
  89                                         getStrokeColor: function(feature) {
  90                                                 if (feature.attributes.strokeColor !== undefined) return feature.attributes.strokeColor;
  91                                                 if (feature.attributes.type == 'rodelbahn') return '#014e9a';
  92                                                 if (feature.attributes.type == 'gehweg') return '#e98401';
  93                                                 if (feature.attributes.type == 'alternative') return '#7f7fff';
  94                                                 if (feature.attributes.type == 'lift') return '#000000';
  95                                                 if (feature.attributes.type == 'anfahrt') return '#e1e100';
  96                                                 return '#e7525b';
  97                                         },
  98                                         getStrokeWidth: function(feature) {
  99                                                 if (feature.attributes.strokeWidth !== undefined) return feature.attributes.strokeWidth;
 100                                                 if (feature.attributes.type == 'lift' || feature.attributes.type == 'anfahrt') return 3;
 101                                                 return 6;
 102                                         }
 103                                 }
 104                         }))
 105         });
 106
 107
 108         // point layer
 109         // -----------
 110         var filter_point_sledrun = new OpenLayers.Filter.Comparison({
 111                 type: OpenLayers.Filter.Comparison.EQUAL_TO,
 112                 property: 'type',
 113                 value: 'sledrun'
 114         });
 115
 116         // Returns 0 to 5 for features that represent sledruns as their condition
 117         var get_sledrun_condition = function(feature) {
 118                 if (feature.attributes.condition === undefined) return 0;
 119                 return feature.attributes.condition;
 120         }
 121
 122
 123         var layer_point = new OpenLayers.Layer.Vector("Point", {
 124                 styleMap: new OpenLayers.StyleMap({
 125                         'default': new OpenLayers.Style({
 126                                         graphicZIndex: 12,
 127                                         backgroundGraphicZIndex: 11,
 128                                 }, {
 129                                         context: {
 130                                                 // the following context functions should only be available in the rule that uses them,
 131                                                 // but the rule dependent contexts are ignored by OpenLayers (I think that's a bug)
 132                                                 getCondition: get_sledrun_condition,
 133                                                 getSymbol: function(feature) {
 134                                                         var name = feature.attributes.type;
 135                                                         return name;
 136                                                 }
 137                                         },
 138                                         rules: [
 139                                                 new OpenLayers.Rule({
 140                                                         filter: filter_point_sledrun,
 141                                                         symbolizer: {
 142                                                                 externalGraphic: img_path + '/marker_c_sledrun_${getCondition}nn.png',
 143                                                                 graphicWidth: 17,
 144                                                                 graphicHeight: 17,
 145                                                                 graphicXOffset: -8,
 146                                                                 graphicYOffset: -8,
 147                                                                 backgroundGraphic: img_path + '/marker_c_shadow.png',
 148                                                                 backgroundWidth: 23,
 149                                                                 backgroundHeight: 23,
 150                                                                 backgroundXOffset: -8,
 151                                                                 backgroundYOffset: -8,
 152                                                         }
 153                                                 }),
 154                                                 new OpenLayers.Rule({
 155                                                         elseFilter: true,
 156                                                         symbolizer: {
 157                                                                 externalGraphic: img_path + '/marker_p_${getSymbol}.png',
 158                                                                 graphicWidth: 20,
 159                                                                 graphicHeight: 34,
 160                                                                 graphicXOffset: -10,
 161                                                                 graphicYOffset: -33,
 162                                                         }
 163                                                 })
 164                                         ]
 165                                 }),
 166                         highlight: new OpenLayers.Style({
 167                                         label: "${getTitle}",
 168                                         labelOutlineColor: "white",
 169                                         fontWeight: "bold"
 170                                 }, {
 171                                         context: {
 172                                                 getCondition: get_sledrun_condition,
 173                                                 getTitle: function(feature) {
 174                                                         var title = '';
 175                                                         if (feature.attributes.type != 'point') {
 176                                                                 title = feature.attributes.type;
 177                                                                 title = title.charAt(0).toUpperCase() + title.slice(1); // First letter uppercase
 178                                                                 if (feature.attributes.name !== undefined) title += ': ';
 179                                                         }
 180                                                         if (feature.attributes.name !== undefined) title += feature.attributes.name;
 181                                                         return title;
 182                                                 }
 183                                         },
 184                                         rules: [
 185                                                 new OpenLayers.Rule({
 186                                                         filter: filter_point_sledrun,
 187                                                         symbolizer: {
 188                                                                 label: "${name}",
 189                                                                 labelYOffset: 14,
 190                                                                 externalGraphic: img_path + '/marker_c_sledrun_${getCondition}nh.png'
 191                                                         }
 192                                                 }),
 193                                                 new OpenLayers.Rule({
 194                                                         elseFilter: true,
 195                                                         symbolizer: {
 196                                                                 labelYOffset: 40
 197                                                         }
 198                                                 })
 199                                         ]
 200                                 }),
 201                         select: new OpenLayers.Style({
 202                                         fillOpacity: 1.
 203                                 }, {
 204                                         context: {
 205                                                 getCondition: get_sledrun_condition,
 206                                         },
 207                                         rules: [
 208                                                 new OpenLayers.Rule({
 209                                                         filter: filter_point_sledrun,
 210                                                         symbolizer: {
 211                                                                 externalGraphic: img_path + '/marker_c_sledrun_${getCondition}nh.png',
 212                                                                 backgroundGraphic: false,
 213                                                                 graphicXOffset: -6,
 214                                                                 graphicYOffset: -6
 215                                                         }
 216                                                 }),
 217                                                 new OpenLayers.Rule({
 218                                                         elseFilter: true
 219                                                 })
 220                                         ]
 221                                 })
 222                 }),
 223                 rendererOptions: {yOrdering: true}
 224         });
 225
 226
 227         // map itself
 228         // ----------
 229         var lon = json_js.properties.lon;
 230         var lat = json_js.properties.lat;
 231         var zoom = json_js.properties.zoom;
 232         var width = json_js.properties.width;
 233         var height = json_js.properties.height;
 234         if (zoom === undefined) zoom = 10; // default zoom
 235         if (width === undefined) width = '100%'; // default width
 236         if (height === undefined) height = 450;  // default: 450 pixel
 237         jq_map.width(width);
 238         jq_map.height(height);
 239         var map = new OpenLayers.Map(jq_map.context, {
 240                 projection: EPSG3857,
 241                 displayProjection: EPSG4326,
 242                 units: "m",
 243                 theme: null,
 244                 layers: [layer_map, layer_path, layer_point],
 245                 center: new OpenLayers.LonLat(lon, lat).transform(EPSG4326, EPSG3857),
 246                 zoom: zoom
 247         });
 248
 249
 250         // add features
 251         // if this would be done before the layer is added to the map, the features are not added
 252         layer_path.addFeatures(features_path);
 253         layer_point.addFeatures(features_point);
 254
 255         // disable mouse wheel zoom
 256         var navigation_control = map.getControlsByClass('OpenLayers.Control.Navigation')[0];
 257         navigation_control.disableZoomWheel();
 258
 259         // layer switcher
 260         // map.addControl(new OpenLayers.Control.LayerSwitcher());
 261
 262         // print sledrun name when mouse moves over it
 263         map.addControl(new OpenLayers.Control.SelectFeature(layer_point, {
 264                 hover: true,
 265                 highlightOnly: true,
 266                 autoActivate: true,
 267                 renderIntent: "highlight"
 268         }));
 269
 270         // show popup when user clicks on a sledrun icon
 271         map.addControl(new OpenLayers.Control.SelectFeature(layer_point, {
 272                 autoActivate: true,
 273                 toggle: true,
 274                 onSelect: function(feature) {
 275                         var attr = feature.attributes;
 276                         var popup_div = createElement('div');
 277
 278                         // name
 279                         if (attr.name !== undefined && (attr.wiki !== undefined || attr.thumb_url !== undefined)) {
 280                                 var h2 = appendElement(popup_div, 'h2');
 281                                 if (attr.wiki === undefined) h2.text(attr.name);
 282                                 else appendElement(h2, 'a', {href: attr.wiki}).text(attr.name);
 283                         }
 284
 285                         // sledrun information
 286                         if (attr.type == 'sledrun') {
 287                                 var p = appendElement(popup_div, 'p').text('Rodelbahnzustand').append(createElement('br'));
 288                                 if (attr.condition !== undefined) {
 289                                         var condition_text = {1: 'Sehr gut', 2: 'Gut', 3: 'Mittelmäßig', 4: 'Schlecht', 5: 'Geht nicht'};
 290                                         var year_month_day = attr.date_report.split('-');
 291                                         p.append(createElement('a', {href: attr.wiki + '#Eintr.C3.A4ge'}).text(condition_text[attr.condition]), ' ');
 292                                         p.append(createElement('small').text(year_month_day[2] + '.' + year_month_day[1] + '.'), ' ');
 293                                         p.append(createElement('em').append(createElement('a', {href: attr.wiki + '#Eintragen'}).text('Neu')));
 294                                 } else {
 295                                         p.append(createElement('em').append(createElement('a', {href: attr.wiki + '#Eintragen'}).text('Bitte eintragen')));
 296                                 }
 297                         }
 298
 299                         // wiki link
 300                         if (attr.wiki !== undefined) {
 301                                 var a = appendElement(appendElement(popup_div, 'p'), 'a', {href: attr.wiki});
 302                                 var detail_text = 'Details';
 303                                 if (attr.type == 'sledrun') detail_text += ' zur Rodelbahn';
 304                                 if (attr.type == 'gasthaus') detail_text += ' zum Gasthaus';
 305                                 if (attr.thumb_url === undefined) a.text(detail_text);
 306                                 else a.append(createElement('img', {src: attr.thumb_url, alt: detail_text, title: detail_text}));
 307                         }
 308
 309                         // no popup if we don't have anything to say
 310                         if (popup_div.children().length == 0) return;
 311
 312                         // Open popup
 313                         var selectFeatureControl = this;
 314                         var popup = new OpenLayers.Popup.WrInfo('sledruninfopopup_' + attr.wiki,
 315                         feature.geometry.getBounds().getCenterLonLat(),
 316                         null,
 317                         popup_div.html(),
 318                         null, true, function(event) {
 319                                 // onPopupClose
 320                                 selectFeatureControl.unselectAll();
 321                         });
 322                         feature.popup = popup;
 323                         map.addPopup(popup);
 324                 },
 325                 onUnselect: function(feature) {
 326                         if (feature.popup === null) return;
 327
 328                         // Close popup
 329                         map.removePopup(feature.popup);
 330                         feature.popup.destroy();
 331                         feature.popup = null;
 332                 }
 333         }));
 334 }
 335
 336
 337 function init_wrmaps() {
 338         var jq_maps = $('.wrmap'); // all wrmap <div> elements
 339         jq_maps.each(init_wrmap);
 340 }
 341
 342
 343 $(document).ready(init_wrmaps);
 344