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         // // Google (since about 19th of November 2015 this doesn't work anymore - white background)
  65         // var layer_map = new OpenLayers.Layer.Google("Google Physical", {
  66         //      type: google.maps.MapTypeId.TERRAIN
  67         // });
  68
  69         // // Alternative: OSM map
  70         // var layer_map = new OpenLayers.Layer.OSM();
  71
  72         // Microsoft Bing Maps
  73         var layer_map = new OpenLayers.Layer.Bing({
  74                 type: "Road",
  75                 key: "AgPH3SlIXAwajrJKf0FORQyhTqsP8KIlvtN6RKfvxe6fOB6q6-HFmg8EOFm7LSOA"});
  76
  77         // // Alternative: Base map
  78         // // see: http://www.basemap.at
  79
  80         // // Alternative: OpenTopoMap
  81         // // see: https://opentopomap.org/about
  82
  83         // // Alternative: Dummy base layer
  84         // var layer_map = new OpenLayers.Layer.Vector("Base Layer", {
  85         //     isBaseLayer: true});
  86
  87
  88         // path layer
  89         // ----------
  90         var layer_path = new OpenLayers.Layer.Vector("Path", {
  91                 styleMap: new OpenLayers.StyleMap(new OpenLayers.Style({
  92                                 strokeColor: '${getStrokeColor}',
  93                                 strokeWidth: '${getStrokeWidth}'
  94                         }, {
  95                                 context: {
  96                                         getStrokeColor: function(feature) {
  97                                                 if (feature.attributes.strokeColor !== undefined) return feature.attributes.strokeColor;
  98                                                 if (feature.attributes.type == 'rodelbahn') return '#014e9a';
  99                                                 if (feature.attributes.type == 'gehweg') return '#e98401';
 100                                                 if (feature.attributes.type == 'alternative') return '#7f7fff';
 101                                                 if (feature.attributes.type == 'lift') return '#000000';
 102                                                 if (feature.attributes.type == 'anfahrt') return '#e1e100';
 103                                                 return '#e7525b';
 104                                         },
 105                                         getStrokeWidth: function(feature) {
 106                                                 if (feature.attributes.strokeWidth !== undefined) return feature.attributes.strokeWidth;
 107                                                 if (feature.attributes.type == 'lift' || feature.attributes.type == 'anfahrt') return 3;
 108                                                 return 6;
 109                                         }
 110                                 }
 111                         }))
 112         });
 113
 114
 115         // point layer
 116         // -----------
 117         var filter_point_sledrun = new OpenLayers.Filter.Comparison({
 118                 type: OpenLayers.Filter.Comparison.EQUAL_TO,
 119                 property: 'type',
 120                 value: 'sledrun'
 121         });
 122
 123         // Returns 0 to 5 for features that represent sledruns as their condition
 124         var get_sledrun_condition = function(feature) {
 125                 if (feature.attributes.condition === undefined) return 0;
 126                 return feature.attributes.condition;
 127         }
 128
 129
 130         var layer_point = new OpenLayers.Layer.Vector("Point", {
 131                 styleMap: new OpenLayers.StyleMap({
 132                         'default': new OpenLayers.Style({
 133                                         graphicZIndex: 12,
 134                                         backgroundGraphicZIndex: 11,
 135                                 }, {
 136                                         context: {
 137                                                 // the following context functions should only be available in the rule that uses them,
 138                                                 // but the rule dependent contexts are ignored by OpenLayers (I think that's a bug)
 139                                                 getCondition: get_sledrun_condition,
 140                                                 getSymbol: function(feature) {
 141                                                         var name = feature.attributes.type;
 142                                                         return name;
 143                                                 }
 144                                         },
 145                                         rules: [
 146                                                 new OpenLayers.Rule({
 147                                                         filter: filter_point_sledrun,
 148                                                         symbolizer: {
 149                                                                 externalGraphic: img_path + '/marker_c_sledrun_${getCondition}nn.png',
 150                                                                 graphicWidth: 17,
 151                                                                 graphicHeight: 17,
 152                                                                 graphicXOffset: -8,
 153                                                                 graphicYOffset: -8,
 154                                                                 backgroundGraphic: img_path + '/marker_c_shadow.png',
 155                                                                 backgroundWidth: 23,
 156                                                                 backgroundHeight: 23,
 157                                                                 backgroundXOffset: -8,
 158                                                                 backgroundYOffset: -8,
 159                                                         }
 160                                                 }),
 161                                                 new OpenLayers.Rule({
 162                                                         elseFilter: true,
 163                                                         symbolizer: {
 164                                                                 externalGraphic: img_path + '/marker_p_${getSymbol}.png',
 165                                                                 graphicWidth: 20,
 166                                                                 graphicHeight: 34,
 167                                                                 graphicXOffset: -10,
 168                                                                 graphicYOffset: -33,
 169                                                         }
 170                                                 })
 171                                         ]
 172                                 }),
 173                         highlight: new OpenLayers.Style({
 174                                         label: "${getTitle}",
 175                                         labelOutlineColor: "white",
 176                                         fontWeight: "bold"
 177                                 }, {
 178                                         context: {
 179                                                 getCondition: get_sledrun_condition,
 180                                                 getTitle: function(feature) {
 181                                                         var title = '';
 182                                                         if (feature.attributes.type != 'point') {
 183                                                                 title = feature.attributes.type;
 184                                                                 title = title.charAt(0).toUpperCase() + title.slice(1); // First letter uppercase
 185                                                                 if (feature.attributes.name !== undefined) title += ': ';
 186                                                         }
 187                                                         if (feature.attributes.name !== undefined) title += feature.attributes.name;
 188                                                         return title;
 189                                                 }
 190                                         },
 191                                         rules: [
 192                                                 new OpenLayers.Rule({
 193                                                         filter: filter_point_sledrun,
 194                                                         symbolizer: {
 195                                                                 label: "${name}",
 196                                                                 labelYOffset: 14,
 197                                                                 externalGraphic: img_path + '/marker_c_sledrun_${getCondition}nh.png'
 198                                                         }
 199                                                 }),
 200                                                 new OpenLayers.Rule({
 201                                                         elseFilter: true,
 202                                                         symbolizer: {
 203                                                                 labelYOffset: 40
 204                                                         }
 205                                                 })
 206                                         ]
 207                                 }),
 208                         select: new OpenLayers.Style({
 209                                         fillOpacity: 1.
 210                                 }, {
 211                                         context: {
 212                                                 getCondition: get_sledrun_condition,
 213                                         },
 214                                         rules: [
 215                                                 new OpenLayers.Rule({
 216                                                         filter: filter_point_sledrun,
 217                                                         symbolizer: {
 218                                                                 externalGraphic: img_path + '/marker_c_sledrun_${getCondition}nh.png',
 219                                                                 backgroundGraphic: false,
 220                                                                 graphicXOffset: -6,
 221                                                                 graphicYOffset: -6
 222                                                         }
 223                                                 }),
 224                                                 new OpenLayers.Rule({
 225                                                         elseFilter: true
 226                                                 })
 227                                         ]
 228                                 })
 229                 }),
 230                 rendererOptions: {yOrdering: true}
 231         });
 232
 233
 234         // map itself
 235         // ----------
 236         var lon = json_js.properties.lon;
 237         var lat = json_js.properties.lat;
 238         var zoom = json_js.properties.zoom;
 239         var width = json_js.properties.width;
 240         var height = json_js.properties.height;
 241         if (zoom === undefined) zoom = 10; // default zoom
 242         if (width === undefined) width = '100%'; // default width
 243         if (height === undefined) height = 450;  // default: 450 pixel
 244         jq_map.width(width);
 245         jq_map.height(height);
 246         var map = new OpenLayers.Map(jq_map.context, {
 247                 projection: EPSG3857,
 248                 displayProjection: EPSG4326,
 249                 units: "m",
 250                 theme: null,
 251                 layers: [layer_map, layer_path, layer_point],
 252                 center: new OpenLayers.LonLat(lon, lat).transform(EPSG4326, EPSG3857),
 253                 zoom: zoom
 254         });
 255
 256
 257         // add features
 258         // if this would be done before the layer is added to the map, the features are not added
 259         layer_path.addFeatures(features_path);
 260         layer_point.addFeatures(features_point);
 261
 262         // disable mouse wheel zoom
 263         var navigation_control = map.getControlsByClass('OpenLayers.Control.Navigation')[0];
 264         navigation_control.disableZoomWheel();
 265
 266         // layer switcher
 267         // map.addControl(new OpenLayers.Control.LayerSwitcher());
 268
 269         // print sledrun name when mouse moves over it
 270         map.addControl(new OpenLayers.Control.SelectFeature(layer_point, {
 271                 hover: true,
 272                 highlightOnly: true,
 273                 autoActivate: true,
 274                 renderIntent: "highlight"
 275         }));
 276
 277         // show popup when user clicks on a sledrun icon
 278         map.addControl(new OpenLayers.Control.SelectFeature(layer_point, {
 279                 autoActivate: true,
 280                 toggle: true,
 281                 onSelect: function(feature) {
 282                         var attr = feature.attributes;
 283                         var popup_div = createElement('div');
 284
 285                         // name
 286                         if (attr.name !== undefined && (attr.wiki !== undefined || attr.thumb_url !== undefined)) {
 287                                 var h2 = appendElement(popup_div, 'h2');
 288                                 if (attr.wiki === undefined) h2.text(attr.name);
 289                                 else appendElement(h2, 'a', {href: attr.wiki}).text(attr.name);
 290                         }
 291
 292                         // sledrun information
 293                         if (attr.type == 'sledrun') {
 294                                 var p = appendElement(popup_div, 'p').text('Rodelbahnzustand').append(createElement('br'));
 295                                 if (attr.condition !== undefined) {
 296                                         var condition_text = {1: 'Sehr gut', 2: 'Gut', 3: 'Mittelmäßig', 4: 'Schlecht', 5: 'Geht nicht'};
 297                                         var year_month_day = attr.date_report.split('-');
 298                                         p.append(createElement('a', {href: attr.wiki + '#Eintr.C3.A4ge'}).text(condition_text[attr.condition]), ' ');
 299                                         p.append(createElement('small').text(year_month_day[2] + '.' + year_month_day[1] + '.'), ' ');
 300                                         p.append(createElement('em').append(createElement('a', {href: attr.wiki + '#Eintragen'}).text('Neu')));
 301                                 } else {
 302                                         p.append(createElement('em').append(createElement('a', {href: attr.wiki + '#Eintragen'}).text('Bitte eintragen')));
 303                                 }
 304                         }
 305
 306                         // wiki link
 307                         if (attr.wiki !== undefined) {
 308                                 var a = appendElement(appendElement(popup_div, 'p'), 'a', {href: attr.wiki});
 309                                 var detail_text = 'Details';
 310                                 if (attr.type == 'sledrun') detail_text += ' zur Rodelbahn';
 311                                 if (attr.type == 'gasthaus') detail_text += ' zum Gasthaus';
 312                                 if (attr.thumb_url === undefined) a.text(detail_text);
 313                                 else a.append(createElement('img', {src: attr.thumb_url, alt: detail_text, title: detail_text}));
 314                         }
 315
 316                         // no popup if we don't have anything to say
 317                         if (popup_div.children().length == 0) return;
 318
 319                         // Open popup
 320                         var selectFeatureControl = this;
 321                         var popup = new OpenLayers.Popup.WrInfo('sledruninfopopup_' + attr.wiki,
 322                         feature.geometry.getBounds().getCenterLonLat(),
 323                         null,
 324                         popup_div.html(),
 325                         null, true, function(event) {
 326                                 // onPopupClose
 327                                 selectFeatureControl.unselectAll();
 328                         });
 329                         feature.popup = popup;
 330                         map.addPopup(popup);
 331                 },
 332                 onUnselect: function(feature) {
 333                         if (feature.popup === null) return;
 334
 335                         // Close popup
 336                         map.removePopup(feature.popup);
 337                         feature.popup.destroy();
 338                         feature.popup = null;
 339                 }
 340         }));
 341 }
 342
 343
 344 function init_wrmaps() {
 345         var jq_maps = $('.wrmap'); // all wrmap <div> elements
 346         jq_maps.each(init_wrmap);
 347 }
 348
 349
 350 $(document).ready(init_wrmaps);
 351