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         // tool functions
  23         function createElement(tagName, attributes) {
  24                 var element = $(document.createElement(tagName));
  25                 if (attributes === undefined) return element;
  26                 for (var attribute in attributes) {
  27                         element.attr(attribute, attributes[attribute]);
  28                 }
  29                 return element;
  30         }
  31
  32         function appendElement(parentElement, tagName, attributes) {
  33                 if (attributes === undefined) attributes = {};
  34                 var element = createElement(tagName, attributes);
  35                 parentElement.append(element);
  36                 return element;
  37         }
  38
  39
  40         // extract geojson from map element and clear map element's content
  41         jq_map = $(jq_map);
  42         var ext_path = jq_map.attr('data-ext-path'); // e.g. '/mediawiki/extensions/wrmap'
  43         var img_path = ext_path + '/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 json_js = JSON.parse(json_string);
  47         var format_geojson = new ol.format.GeoJSON();
  48         var features_all = format_geojson.readFeatures(json_js, {dataProjection: EPSG4326, featureProjection: EPSG3857});
  49
  50
  51         // background layer
  52         // ----------------
  53
  54         // OSM map
  55         var layer_map = new ol.layer.Tile({
  56                 source: new ol.source.OSM()
  57         });
  58
  59
  60         /*
  61         // Microsoft Bing Maps
  62         // var layer_map = new OpenLayers.Layer.Bing({
  63         //      type: "Road",
  64         //      key: "AgPH3SlIXAwajrJKf0FORQyhTqsP8KIlvtN6RKfvxe6fOB6q6-HFmg8EOFm7LSOA",
  65         //      tileOptions: {crossOriginKeyword: null}});
  66
  67         // // Alternative: Base map
  68         // // see: http://www.basemap.at
  69
  70         // // Alternative: OpenTopoMap
  71         // // see: https://opentopomap.org/about
  72
  73         // // Alternative: Dummy base layer
  74         // var layer_map = new OpenLayers.Layer.Vector("Base Layer", {
  75         //     isBaseLayer: true});
  76         */
  77
  78
  79         // path layer
  80         // ----------
  81
  82         function get_feature_title(feature) {
  83                 var title = feature.get('type');
  84                 if (title == 'sledrun') return feature.get('name');
  85                 title = title.charAt(0).toUpperCase() + title.slice(1); // first letter uppercase
  86                 if (feature.get('name')) title += ': ' + feature.get('name');
  87                 return title;
  88         }
  89
  90         // Returns 0 to 5 for features that represent sledruns as their condition
  91         var get_sledrun_condition = function(feature) {
  92                 var condition = feature.get('condition');
  93                 if (condition === undefined) return 0;
  94                 return condition;
  95         }
  96
  97         function style_point_function(feature, resolution) {
  98                 if (feature.get('type') == 'sledrun') {
  99                         let condition = get_sledrun_condition(feature);
 100                         let src = img_path + '/marker_c_sledrun_' + condition + 'nn.png';
 101                         let marker_style = new ol.style.Style({
 102                                 image: new ol.style.Icon({
 103                                         src: src,
 104                                         imgSize: [17, 17],
 105                                         anchor: [0.5, 0.5]
 106                                 }),
 107                         });
 108                         let shadow_style = new ol.style.Style({
 109                                 image: new ol.style.Icon({
 110                                         src: img_path + '/marker_c_shadow.png',
 111                                         imgSize: [23, 23],
 112                                         anchor: [0.4, 0.4]
 113                                 }),
 114                         });
 115                         return [shadow_style, marker_style];
 116
 117                 } else {
 118                         let src = img_path + '/marker_p_' + feature.get('type') + '.png';
 119                         let marker_style = new ol.style.Style({
 120                                 image: new ol.style.Icon({
 121                                         src: src,
 122                                         imgSize: [20, 34],
 123                                         anchor: [0.5, 1.0]
 124                                 }),
 125                         });
 126                         return [marker_style];
 127                 }
 128         }
 129
 130         function style_point_function_selected(feature, resolution) {
 131                 let style_array = style_point_function(feature, resolution);
 132                 style_array[0].setText(new ol.style.Text({
 133                         text: get_feature_title(feature),
 134                         font: 'icon',
 135                         offsetY: 14,
 136                         stroke: new ol.style.Stroke({
 137                                 color: '#ddd',
 138                                 width: 2,
 139                         }),
 140                 }));
 141                 return style_array;
 142         }
 143
 144         function style_path_function(feature, resolution) {
 145                 var line_color = {
 146                         'rodelbahn': '#014e9a',
 147                         'gehweg': '#e98401',
 148                         'alternative': '#7f7fff',
 149                         'lift': '#000000',
 150                         'anfahrt': '#e1e100'
 151                 };
 152                 var color = feature.get('strokeColor') || line_color[feature.get('type')] || '#e7525b';
 153                 var width = (feature.get('type') in ['lift', 'anfahrt']) ? 3 : 6;
 154                 return new ol.style.Style({
 155                         stroke: new ol.style.Stroke({
 156                                 color: color,
 157                                 width: width
 158                         })
 159                 });
 160         }
 161
 162         function style_function(feature, resolution) {
 163                 if (feature.getGeometry() instanceof ol.geom.Point) return style_point_function(feature, resolution);
 164                 return style_path_function(feature, resolution);
 165         };
 166
 167         function style_function_selected(feature, resolution) {
 168                 if (feature.getGeometry() instanceof ol.geom.Point) return style_point_function_selected(feature, resolution);
 169                 return style_path_function(feature, resolution);
 170         };
 171
 172
 173         // popup overlay
 174         // -------------
 175         var popup_container = document.getElementById('popup');
 176         var popup_content = document.getElementById('popup-content');
 177         var popup_closer = document.getElementById('popup-closer');
 178         var popup_overlay = new ol.Overlay({element: popup_container, autoPan: {animation: {duration: 250}}});
 179         popup_closer.onclick = function() {popup_overlay.setPosition(undefined); popup_closer.blur(); return false;};
 180
 181         function create_popup_dom(feature) {
 182                 var popup_div = createElement('div');
 183
 184                 // name
 185                 if (feature.get('name') !== undefined && (feature.get('wiki') !== undefined || feature.get('thumb_url') !== undefined)) {
 186                         var h2 = appendElement(popup_div, 'h2');
 187                         if (feature.get('wiki') === undefined) h2.text(feature.get('name'));
 188                         else appendElement(h2, 'a', {href: feature.get('wiki')}).text(feature.get('name'));
 189                 }
 190
 191                 // sledrun information
 192                 if (feature.get('type') == 'sledrun') {
 193                         var p = appendElement(popup_div, 'p').text('Rodelbahnzustand').append(createElement('br'));
 194                         if (feature.get('condition') !== undefined) {
 195                                 var condition_text = {1: 'Sehr gut', 2: 'Gut', 3: 'Mittelmäßig', 4: 'Schlecht', 5: 'Geht nicht'};
 196                                 var year_month_day = feature.get('date_report').split('-');
 197                                 p.append(createElement('a', {href: feature.get('wiki') + '#Eintr.C3.A4ge'}).text(condition_text[feature.get('condition')]), ' ');
 198                                 p.append(createElement('small').text(year_month_day[2] + '.' + year_month_day[1] + '.'), ' ');
 199                                 p.append(createElement('em').append(createElement('a', {href: feature.get('wiki') + '#Eintragen'}).text('Neu')));
 200                         } else {
 201                                 p.append(createElement('em').append(createElement('a', {href: feature.get('wiki') + '#Eintragen'}).text('Bitte eintragen')));
 202                         }
 203                 }
 204
 205                 // wiki link
 206                 if (feature.get('wiki') !== undefined) {
 207                         var a = appendElement(appendElement(popup_div, 'p'), 'a', {href: feature.get('wiki')});
 208                         var detail_text = 'Details';
 209                         if (feature.get('type') == 'sledrun') detail_text += ' zur Rodelbahn';
 210                         if (feature.get('type') == 'gasthaus') detail_text += ' zum Gasthaus';
 211                         if (feature.get('thumb_url') === undefined) a.text(detail_text);
 212                         else a.append(createElement('img', {src: feature.get('thumb_url'), alt: detail_text, title: detail_text}));
 213                 }
 214
 215                 return popup_div;
 216         }
 217
 218
 219         /*
 220         // point layer
 221         // -----------
 222         var filter_point_sledrun = new OpenLayers.Filter.Comparison({
 223                 type: OpenLayers.Filter.Comparison.EQUAL_TO,
 224                 property: 'type',
 225                 value: 'sledrun'
 226         });
 227
 228
 229         var layer_point = new OpenLayers.Layer.Vector("Point", {
 230                 styleMap: new OpenLayers.StyleMap({
 231                         'default': new OpenLayers.Style({
 232                                         graphicZIndex: 12,
 233                                         backgroundGraphicZIndex: 11,
 234                                 }, {
 235                                         context: {
 236                                                 // the following context functions should only be available in the rule that uses them,
 237                                                 // but the rule dependent contexts are ignored by OpenLayers (I think that's a bug)
 238                                                 getCondition: get_sledrun_condition,
 239                                                 getSymbol: function(feature) {
 240                                                         var name = feature.attributes.type;
 241                                                         return name;
 242                                                 }
 243                                         },
 244                                         rules: [
 245                                                 new OpenLayers.Rule({
 246                                                         filter: filter_point_sledrun,
 247                                                         symbolizer: {
 248                                                                 externalGraphic: img_path + '/marker_c_sledrun_${getCondition}nn.png',
 249                                                                 graphicWidth: 17,
 250                                                                 graphicHeight: 17,
 251                                                                 graphicXOffset: -8,
 252                                                                 graphicYOffset: -8,
 253                                                                 backgroundGraphic: img_path + '/marker_c_shadow.png',
 254                                                                 backgroundWidth: 23,
 255                                                                 backgroundHeight: 23,
 256                                                                 backgroundXOffset: -8,
 257                                                                 backgroundYOffset: -8,
 258                                                         }
 259                                                 }),
 260                                                 new OpenLayers.Rule({
 261                                                         elseFilter: true,
 262                                                         symbolizer: {
 263                                                                 externalGraphic: img_path + '/marker_p_${getSymbol}.png',
 264                                                                 graphicWidth: 20,
 265                                                                 graphicHeight: 34,
 266                                                                 graphicXOffset: -10,
 267                                                                 graphicYOffset: -33,
 268                                                         }
 269                                                 })
 270                                         ]
 271                                 }),
 272                         highlight: new OpenLayers.Style({
 273                                         label: "${getTitle}",
 274                                         labelOutlineColor: "white",
 275                                         fontWeight: "bold"
 276                                 }, {
 277                                         context: {
 278                                                 getCondition: get_sledrun_condition,
 279                                                 getTitle: function(feature) {
 280                                                         var title = '';
 281                                                         if (feature.attributes.type != 'point') {
 282                                                                 title = feature.attributes.type;
 283                                                                 title = title.charAt(0).toUpperCase() + title.slice(1); // First letter uppercase
 284                                                                 if (feature.attributes.name !== undefined) title += ': ';
 285                                                         }
 286                                                         if (feature.attributes.name !== undefined) title += feature.attributes.name;
 287                                                         return title;
 288                                                 }
 289                                         },
 290                                         rules: [
 291                                                 new OpenLayers.Rule({
 292                                                         filter: filter_point_sledrun,
 293                                                         symbolizer: {
 294                                                                 label: "${name}",
 295                                                                 labelYOffset: 14,
 296                                                                 externalGraphic: img_path + '/marker_c_sledrun_${getCondition}nh.png'
 297                                                         }
 298                                                 }),
 299                                                 new OpenLayers.Rule({
 300                                                         elseFilter: true,
 301                                                         symbolizer: {
 302                                                                 labelYOffset: 40
 303                                                         }
 304                                                 })
 305                                         ]
 306                                 }),
 307                         select: new OpenLayers.Style({
 308                                         fillOpacity: 1.
 309                                 }, {
 310                                         context: {
 311                                                 getCondition: get_sledrun_condition,
 312                                         },
 313                                         rules: [
 314                                                 new OpenLayers.Rule({
 315                                                         filter: filter_point_sledrun,
 316                                                         symbolizer: {
 317                                                                 externalGraphic: img_path + '/marker_c_sledrun_${getCondition}nh.png',
 318                                                                 backgroundGraphic: false,
 319                                                                 graphicXOffset: -6,
 320                                                                 graphicYOffset: -6
 321                                                         }
 322                                                 }),
 323                                                 new OpenLayers.Rule({
 324                                                         elseFilter: true
 325                                                 })
 326                                         ]
 327                                 })
 328                 }),
 329                 rendererOptions: {yOrdering: true}
 330         });
 331
 332 */
 333         // map itself
 334         // ----------
 335         var lon = json_js.properties.lon;
 336         var lat = json_js.properties.lat;
 337         var zoom = json_js.properties.zoom;
 338         var width = json_js.properties.width;
 339         var height = json_js.properties.height;
 340         if (zoom === undefined) zoom = 10; // default zoom
 341         if (width === undefined) width = '100%'; // default width
 342         if (height === undefined) height = 450;  // default: 450 pixel
 343         jq_map.width(width);
 344         jq_map.height(height);
 345
 346         var layer_sledrun_source = new ol.source.Vector({features: features_all});
 347         var layer_sledrun = new ol.layer.Vector({
 348                 source: layer_sledrun_source,
 349                 style: style_function
 350         });
 351
 352         var map = new ol.Map({
 353                 target: jq_map[0],
 354                 layers: [
 355                         layer_map,
 356                         layer_sledrun
 357                 ],
 358                 overlays: [popup_overlay],
 359                 view: new ol.View({
 360                         center: ol.proj.fromLonLat([lon, lat]),
 361                         zoom: zoom
 362                 }),
 363                 controls: ol.control.defaults({
 364                         attributionOptions: {
 365                                 collapsible: false
 366                         }
 367                 }),
 368                 interactions: ol.interaction.defaults({
 369                         mouseWheelZoom: false
 370                 })
 371         });
 372
 373
 374         var select_hover = new ol.interaction.Select({
 375                 condition: ol.events.condition.pointerMove,
 376                 style: style_function_selected,
 377         });
 378         map.addInteraction(select_hover);
 379
 380         var select_click = new ol.interaction.Select({
 381                 condition: ol.events.condition.click,
 382         });
 383         map.addInteraction(select_click);
 384         select_click.on('select', function(event) {
 385                 if (event.selected.length > 0) {
 386                         let feature = event.selected[0];
 387                         let coordinates = feature.getGeometry().getCoordinates();
 388                         let popup_dom = create_popup_dom(feature);
 389                         if (popup_dom.children().length > 0) {
 390                                 $(popup_content).empty().append(popup_dom);
 391                                 popup_overlay.setPosition(coordinates);
 392                         }
 393                 }
 394         });
 395 }
 396
 397 function init_wrmaps() {
 398         var jq_maps = $('.wrmap'); // all wrmap <div> elements
 399         jq_maps.each(init_wrmap);
 400 }
 401
 402
 403 $(document).ready(init_wrmaps);
 404