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
  17 function init_wrmap(i, jq_map) {
  18         // define constants
  19         var EPSG4326 = ol.proj.get("EPSG:4326"); // lon/lat
  20         var EPSG3857 = ol.proj.get("EPSG:3857"); // google
  21
  22         /*
  23         // tool functions
  24         function createElement(tagName, attributes) {
  25                 var element = $(document.createElement(tagName));
  26                 if (attributes === undefined) return element;
  27                 for (var attribute in attributes) {
  28                         element.attr(attribute, attributes[attribute]);
  29                 }
  30                 return element;
  31         }
  32
  33         function appendElement(parentElement, tagName, attributes) {
  34                 if (attributes === undefined) attributes = {};
  35                 var element = createElement(tagName, attributes);
  36                 parentElement.append(element);
  37                 return element;
  38         }
  39         */
  40
  41
  42         // extract geojson from map element and clear map element's content
  43         jq_map = $(jq_map);
  44         var ext_path = jq_map.attr('data-ext-path'); // e.g. '/mediawiki/extensions/wrmap'
  45         var img_path = ext_path + '/img';
  46         //OpenLayers.ImgPath = ext_path + '/openlayers/img/'; // e.g. '/mediawiki/extensions/wrmap/openlayers/img/'
  47         var json_string = jq_map.children().last().text();
  48         jq_map.empty(); // once parsed, remove geojson string from the map element.
  49         var json_js = JSON.parse(json_string);
  50         var format_geojson = new ol.format.GeoJSON();
  51         var features_all = format_geojson.readFeatures(json_js, {dataProjection: EPSG4326, featureProjection: EPSG3857});
  52
  53         // extract, tranform and split features to layers
  54         /*
  55         var features_path = new Array();
  56         var features_point = new Array();
  57         for (var i = 0; i != features_all.length; ++i) {
  58                 var feature = features_all[i];
  59                 feature.geometry.transform(EPSG4326, EPSG3857);
  60                 if (feature.geometry instanceof OpenLayers.Geometry.Point) features_point.push(feature);
  61                 else features_path.push(feature);
  62         }
  63         */
  64
  65         // background layer
  66         // ----------------
  67
  68         // OSM map
  69         var layer_map = new ol.layer.Tile({
  70                 source: new ol.source.OSM()
  71         });
  72
  73
  74         /*
  75         // Microsoft Bing Maps
  76         // var layer_map = new OpenLayers.Layer.Bing({
  77         //      type: "Road",
  78         //      key: "AgPH3SlIXAwajrJKf0FORQyhTqsP8KIlvtN6RKfvxe6fOB6q6-HFmg8EOFm7LSOA",
  79         //      tileOptions: {crossOriginKeyword: null}});
  80
  81         // // Alternative: Base map
  82         // // see: http://www.basemap.at
  83
  84         // // Alternative: OpenTopoMap
  85         // // see: https://opentopomap.org/about
  86
  87         // // Alternative: Dummy base layer
  88         // var layer_map = new OpenLayers.Layer.Vector("Base Layer", {
  89         //     isBaseLayer: true});
  90         */
  91
  92
  93         // path layer
  94         // ----------
  95
  96         function get_feature_title(feature) {
  97                 var title = feature.get('type');
  98                 title = title.charAt(0).toUpperCase() + title.slice(1); // first letter uppercase
  99                 if (feature.get('name')) title += ': ' + feature.get('name');
 100                 return title;
 101         }
 102
 103         function style_point_function(feature, resolution) {
 104                 var src = img_path + '/marker_p_' + feature.get('type') + '.png';
 105                 return new ol.style.Style({
 106                         image: new ol.style.Icon({
 107                                 src: src,
 108                                 imgSize: [20, 34],
 109                                 anchor: [0.5, 1.0]
 110                         }),
 111                 });
 112         }
 113
 114         function style_point_function_selected(feature, resolution) {
 115                 var style = style_point_function(feature, resolution);
 116                 style.setText(new ol.style.Text({
 117                         text: get_feature_title(feature),
 118                         font: 'icon',
 119                         offsetY: 14,
 120                         stroke: new ol.style.Stroke({
 121                                 color: '#ddd',
 122                                 width: 2,
 123                         }),
 124                 }));
 125                 return style;
 126         }
 127
 128         function style_path_function(feature, resolution) {
 129                 var line_color = {
 130                         'rodelbahn': '#014e9a',
 131                         'gehweg': '#e98401',
 132                         'alternative': '#7f7fff',
 133                         'lift': '#000000',
 134                         'anfahrt': '#e1e100'
 135                 };
 136                 var color = feature.get('strokeColor') || line_color[feature.get('type')] || '#e7525b';
 137                 var width = (feature.get('type') in ['lift', 'anfahrt']) ? 3 : 6;
 138                 return new ol.style.Style({
 139                         stroke: new ol.style.Stroke({
 140                                 color: color,
 141                                 width: width
 142                         })
 143                 });
 144         }
 145
 146         function style_function(feature, resolution) {
 147                 if (feature.getGeometry() instanceof ol.geom.Point) return style_point_function(feature, resolution);
 148                 return style_path_function(feature, resolution);
 149         };
 150
 151         function style_function_selected(feature, resolution) {
 152                 if (feature.getGeometry() instanceof ol.geom.Point) return style_point_function_selected(feature, resolution);
 153                 return style_path_function(feature, resolution);
 154         };
 155
 156
 157         /*
 158         var layer_path = new OpenLayers.Layer.Vector("Path", {
 159                 styleMap: new OpenLayers.StyleMap(new OpenLayers.Style({
 160                                 strokeColor: '${getStrokeColor}',
 161                                 strokeWidth: '${getStrokeWidth}'
 162                         }, {
 163                                 context: {
 164                                         getStrokeColor: function(feature) {
 165                                                 if (feature.attributes.strokeColor !== undefined) return feature.attributes.strokeColor;
 166                                                 if (feature.attributes.type == 'rodelbahn') return '#014e9a';
 167                                                 if (feature.attributes.type == 'gehweg') return '#e98401';
 168                                                 if (feature.attributes.type == 'alternative') return '#7f7fff';
 169                                                 if (feature.attributes.type == 'lift') return '#000000';
 170                                                 if (feature.attributes.type == 'anfahrt') return '#e1e100';
 171                                                 return '#e7525b';
 172                                         },
 173                                         getStrokeWidth: function(feature) {
 174                                                 if (feature.attributes.strokeWidth !== undefined) return feature.attributes.strokeWidth;
 175                                                 if (feature.attributes.type == 'lift' || feature.attributes.type == 'anfahrt') return 3;
 176                                                 return 6;
 177                                         }
 178                                 }
 179                         }))
 180         });
 181
 182
 183         // point layer
 184         // -----------
 185         var filter_point_sledrun = new OpenLayers.Filter.Comparison({
 186                 type: OpenLayers.Filter.Comparison.EQUAL_TO,
 187                 property: 'type',
 188                 value: 'sledrun'
 189         });
 190
 191         // Returns 0 to 5 for features that represent sledruns as their condition
 192         var get_sledrun_condition = function(feature) {
 193                 if (feature.attributes.condition === undefined) return 0;
 194                 return feature.attributes.condition;
 195         }
 196
 197
 198         var layer_point = new OpenLayers.Layer.Vector("Point", {
 199                 styleMap: new OpenLayers.StyleMap({
 200                         'default': new OpenLayers.Style({
 201                                         graphicZIndex: 12,
 202                                         backgroundGraphicZIndex: 11,
 203                                 }, {
 204                                         context: {
 205                                                 // the following context functions should only be available in the rule that uses them,
 206                                                 // but the rule dependent contexts are ignored by OpenLayers (I think that's a bug)
 207                                                 getCondition: get_sledrun_condition,
 208                                                 getSymbol: function(feature) {
 209                                                         var name = feature.attributes.type;
 210                                                         return name;
 211                                                 }
 212                                         },
 213                                         rules: [
 214                                                 new OpenLayers.Rule({
 215                                                         filter: filter_point_sledrun,
 216                                                         symbolizer: {
 217                                                                 externalGraphic: img_path + '/marker_c_sledrun_${getCondition}nn.png',
 218                                                                 graphicWidth: 17,
 219                                                                 graphicHeight: 17,
 220                                                                 graphicXOffset: -8,
 221                                                                 graphicYOffset: -8,
 222                                                                 backgroundGraphic: img_path + '/marker_c_shadow.png',
 223                                                                 backgroundWidth: 23,
 224                                                                 backgroundHeight: 23,
 225                                                                 backgroundXOffset: -8,
 226                                                                 backgroundYOffset: -8,
 227                                                         }
 228                                                 }),
 229                                                 new OpenLayers.Rule({
 230                                                         elseFilter: true,
 231                                                         symbolizer: {
 232                                                                 externalGraphic: img_path + '/marker_p_${getSymbol}.png',
 233                                                                 graphicWidth: 20,
 234                                                                 graphicHeight: 34,
 235                                                                 graphicXOffset: -10,
 236                                                                 graphicYOffset: -33,
 237                                                         }
 238                                                 })
 239                                         ]
 240                                 }),
 241                         highlight: new OpenLayers.Style({
 242                                         label: "${getTitle}",
 243                                         labelOutlineColor: "white",
 244                                         fontWeight: "bold"
 245                                 }, {
 246                                         context: {
 247                                                 getCondition: get_sledrun_condition,
 248                                                 getTitle: function(feature) {
 249                                                         var title = '';
 250                                                         if (feature.attributes.type != 'point') {
 251                                                                 title = feature.attributes.type;
 252                                                                 title = title.charAt(0).toUpperCase() + title.slice(1); // First letter uppercase
 253                                                                 if (feature.attributes.name !== undefined) title += ': ';
 254                                                         }
 255                                                         if (feature.attributes.name !== undefined) title += feature.attributes.name;
 256                                                         return title;
 257                                                 }
 258                                         },
 259                                         rules: [
 260                                                 new OpenLayers.Rule({
 261                                                         filter: filter_point_sledrun,
 262                                                         symbolizer: {
 263                                                                 label: "${name}",
 264                                                                 labelYOffset: 14,
 265                                                                 externalGraphic: img_path + '/marker_c_sledrun_${getCondition}nh.png'
 266                                                         }
 267                                                 }),
 268                                                 new OpenLayers.Rule({
 269                                                         elseFilter: true,
 270                                                         symbolizer: {
 271                                                                 labelYOffset: 40
 272                                                         }
 273                                                 })
 274                                         ]
 275                                 }),
 276                         select: new OpenLayers.Style({
 277                                         fillOpacity: 1.
 278                                 }, {
 279                                         context: {
 280                                                 getCondition: get_sledrun_condition,
 281                                         },
 282                                         rules: [
 283                                                 new OpenLayers.Rule({
 284                                                         filter: filter_point_sledrun,
 285                                                         symbolizer: {
 286                                                                 externalGraphic: img_path + '/marker_c_sledrun_${getCondition}nh.png',
 287                                                                 backgroundGraphic: false,
 288                                                                 graphicXOffset: -6,
 289                                                                 graphicYOffset: -6
 290                                                         }
 291                                                 }),
 292                                                 new OpenLayers.Rule({
 293                                                         elseFilter: true
 294                                                 })
 295                                         ]
 296                                 })
 297                 }),
 298                 rendererOptions: {yOrdering: true}
 299         });
 300
 301 */
 302         // map itself
 303         // ----------
 304         var lon = json_js.properties.lon;
 305         var lat = json_js.properties.lat;
 306         var zoom = json_js.properties.zoom;
 307         var width = json_js.properties.width;
 308         var height = json_js.properties.height;
 309         if (zoom === undefined) zoom = 10; // default zoom
 310         if (width === undefined) width = '100%'; // default width
 311         if (height === undefined) height = 450;  // default: 450 pixel
 312         jq_map.width(width);
 313         jq_map.height(height);
 314         /*
 315         var map = new OpenLayers.Map(jq_map.context, {
 316                 projection: EPSG3857,
 317                 displayProjection: EPSG4326,
 318                 units: "m",
 319                 theme: null,
 320                 layers: [layer_map, layer_path, layer_point],
 321                 center: new OpenLayers.LonLat(lon, lat).transform(EPSG4326, EPSG3857),
 322                 zoom: zoom
 323         });
 324         */
 325
 326         var layer_sledrun_source = new ol.source.Vector({features: features_all});
 327         var layer_sledrun = new ol.layer.Vector({
 328                 source: layer_sledrun_source,
 329                 style: style_function
 330         });
 331
 332         var map = new ol.Map({
 333                 target: jq_map.context,
 334                 layers: [
 335                         layer_map,
 336                         layer_sledrun
 337                 ],
 338                 view: new ol.View({
 339                         center: ol.proj.fromLonLat([lon, lat]),
 340                         zoom: zoom
 341                 }),
 342                 controls: ol.control.defaults({
 343                         attributionOptions: {
 344                                 collapsible: false
 345                         }
 346                 })
 347         });
 348
 349
 350         var select_hover = new ol.interaction.Select({
 351                 condition: ol.events.condition.pointerMove,
 352                 style: style_function_selected,
 353         });
 354         map.addInteraction(select_hover);
 355         select_hover.on('select', function(event) {
 356                 console.log(event);
 357         });
 358
 359         /*
 360         // add features
 361         // if this would be done before the layer is added to the map, the features are not added
 362         layer_path.addFeatures(features_path);
 363         layer_point.addFeatures(features_point);
 364
 365         // disable mouse wheel zoom
 366         var navigation_control = map.getControlsByClass('OpenLayers.Control.Navigation')[0];
 367         navigation_control.disableZoomWheel();
 368
 369         // layer switcher
 370         // map.addControl(new OpenLayers.Control.LayerSwitcher());
 371
 372         // print sledrun name when mouse moves over it
 373         map.addControl(new OpenLayers.Control.SelectFeature(layer_point, {
 374                 hover: true,
 375                 highlightOnly: true,
 376                 autoActivate: true,
 377                 renderIntent: "highlight"
 378         }));
 379
 380         // show popup when user clicks on a sledrun icon
 381         map.addControl(new OpenLayers.Control.SelectFeature(layer_point, {
 382                 autoActivate: true,
 383                 toggle: true,
 384                 onSelect: function(feature) {
 385                         var attr = feature.attributes;
 386                         var popup_div = createElement('div');
 387
 388                         // name
 389                         if (attr.name !== undefined && (attr.wiki !== undefined || attr.thumb_url !== undefined)) {
 390                                 var h2 = appendElement(popup_div, 'h2');
 391                                 if (attr.wiki === undefined) h2.text(attr.name);
 392                                 else appendElement(h2, 'a', {href: attr.wiki}).text(attr.name);
 393                         }
 394
 395                         // sledrun information
 396                         if (attr.type == 'sledrun') {
 397                                 var p = appendElement(popup_div, 'p').text('Rodelbahnzustand').append(createElement('br'));
 398                                 if (attr.condition !== undefined) {
 399                                         var condition_text = {1: 'Sehr gut', 2: 'Gut', 3: 'Mittelmäßig', 4: 'Schlecht', 5: 'Geht nicht'};
 400                                         var year_month_day = attr.date_report.split('-');
 401                                         p.append(createElement('a', {href: attr.wiki + '#Eintr.C3.A4ge'}).text(condition_text[attr.condition]), ' ');
 402                                         p.append(createElement('small').text(year_month_day[2] + '.' + year_month_day[1] + '.'), ' ');
 403                                         p.append(createElement('em').append(createElement('a', {href: attr.wiki + '#Eintragen'}).text('Neu')));
 404                                 } else {
 405                                         p.append(createElement('em').append(createElement('a', {href: attr.wiki + '#Eintragen'}).text('Bitte eintragen')));
 406                                 }
 407                         }
 408
 409                         // wiki link
 410                         if (attr.wiki !== undefined) {
 411                                 var a = appendElement(appendElement(popup_div, 'p'), 'a', {href: attr.wiki});
 412                                 var detail_text = 'Details';
 413                                 if (attr.type == 'sledrun') detail_text += ' zur Rodelbahn';
 414                                 if (attr.type == 'gasthaus') detail_text += ' zum Gasthaus';
 415                                 if (attr.thumb_url === undefined) a.text(detail_text);
 416                                 else a.append(createElement('img', {src: attr.thumb_url, alt: detail_text, title: detail_text}));
 417                         }
 418
 419                         // no popup if we don't have anything to say
 420                         if (popup_div.children().length == 0) return;
 421
 422                         // Open popup
 423                         var selectFeatureControl = this;
 424                         var popup = new OpenLayers.Popup.WrInfo('sledruninfopopup_' + attr.wiki,
 425                         feature.geometry.getBounds().getCenterLonLat(),
 426                         null,
 427                         popup_div.html(),
 428                         null, true, function(event) {
 429                                 // onPopupClose
 430                                 selectFeatureControl.unselectAll();
 431                         });
 432                         feature.popup = popup;
 433                         map.addPopup(popup);
 434                 },
 435                 onUnselect: function(feature) {
 436                         if (feature.popup === null) return;
 437
 438                         // Close popup
 439                         map.removePopup(feature.popup);
 440                         feature.popup.destroy();
 441                         feature.popup = null;
 442                 }
 443         }));
 444 */
 445 }
 446
 447 function init_wrmaps() {
 448         var jq_maps = $('.wrmap'); // all wrmap <div> elements
 449         jq_maps.each(init_wrmap);
 450 }
 451
 452
 453 $(document).ready(init_wrmaps);
 454