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                         var condition = get_sledrun_condition(feature);
 100                         var src = img_path + '/marker_c_sledrun_' + condition + 'nn.png';
 101                         return 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                 } else {
 109                         var src = img_path + '/marker_p_' + feature.get('type') + '.png';
 110                         return new ol.style.Style({
 111                                 image: new ol.style.Icon({
 112                                         src: src,
 113                                         imgSize: [20, 34],
 114                                         anchor: [0.5, 1.0]
 115                                 }),
 116                         });
 117                 }
 118         }
 119
 120         function style_point_function_selected(feature, resolution) {
 121                 var style = style_point_function(feature, resolution);
 122                 style.setText(new ol.style.Text({
 123                         text: get_feature_title(feature),
 124                         font: 'icon',
 125                         offsetY: 14,
 126                         stroke: new ol.style.Stroke({
 127                                 color: '#ddd',
 128                                 width: 2,
 129                         }),
 130                 }));
 131                 return style;
 132         }
 133
 134         function style_path_function(feature, resolution) {
 135                 var line_color = {
 136                         'rodelbahn': '#014e9a',
 137                         'gehweg': '#e98401',
 138                         'alternative': '#7f7fff',
 139                         'lift': '#000000',
 140                         'anfahrt': '#e1e100'
 141                 };
 142                 var color = feature.get('strokeColor') || line_color[feature.get('type')] || '#e7525b';
 143                 var width = (feature.get('type') in ['lift', 'anfahrt']) ? 3 : 6;
 144                 return new ol.style.Style({
 145                         stroke: new ol.style.Stroke({
 146                                 color: color,
 147                                 width: width
 148                         })
 149                 });
 150         }
 151
 152         function style_function(feature, resolution) {
 153                 if (feature.getGeometry() instanceof ol.geom.Point) return style_point_function(feature, resolution);
 154                 return style_path_function(feature, resolution);
 155         };
 156
 157         function style_function_selected(feature, resolution) {
 158                 if (feature.getGeometry() instanceof ol.geom.Point) return style_point_function_selected(feature, resolution);
 159                 return style_path_function(feature, resolution);
 160         };
 161
 162
 163         // popup overlay
 164         // -------------
 165         var popup_container = document.getElementById('popup');
 166         var popup_content = document.getElementById('popup-content');
 167         var popup_closer = document.getElementById('popup-closer');
 168         var popup_overlay = new ol.Overlay({element: popup_container, autoPan: true, autoPanAnimation: {duration: 250}});
 169         popup_closer.onclick = function() {popup_overlay.setPosition(undefined); popup_closer.blur(); return false;};
 170
 171         function create_popup_dom(feature) {
 172                 var popup_div = createElement('div');
 173
 174                 // name
 175                 if (feature.get('name') !== undefined && (feature.get('wiki') !== undefined || feature.get('thumb_url') !== undefined)) {
 176                         var h2 = appendElement(popup_div, 'h2');
 177                         if (feature.get('wiki') === undefined) h2.text(feature.get('name'));
 178                         else appendElement(h2, 'a', {href: feature.get('wiki')}).text(feature.get('name'));
 179                 }
 180
 181                 // sledrun information
 182                 if (feature.get('type') == 'sledrun') {
 183                         var p = appendElement(popup_div, 'p').text('Rodelbahnzustand').append(createElement('br'));
 184                         if (feature.get('condition') !== undefined) {
 185                                 var condition_text = {1: 'Sehr gut', 2: 'Gut', 3: 'Mittelmäßig', 4: 'Schlecht', 5: 'Geht nicht'};
 186                                 var year_month_day = feature.get('date_report').split('-');
 187                                 p.append(createElement('a', {href: feature.get('wiki') + '#Eintr.C3.A4ge'}).text(condition_text[feature.get('condition')]), ' ');
 188                                 p.append(createElement('small').text(year_month_day[2] + '.' + year_month_day[1] + '.'), ' ');
 189                                 p.append(createElement('em').append(createElement('a', {href: feature.get('wiki') + '#Eintragen'}).text('Neu')));
 190                         } else {
 191                                 p.append(createElement('em').append(createElement('a', {href: feature.get('wiki') + '#Eintragen'}).text('Bitte eintragen')));
 192                         }
 193                 }
 194
 195                 // wiki link
 196                 if (feature.get('wiki') !== undefined) {
 197                         var a = appendElement(appendElement(popup_div, 'p'), 'a', {href: feature.get('wiki')});
 198                         var detail_text = 'Details';
 199                         if (feature.get('type') == 'sledrun') detail_text += ' zur Rodelbahn';
 200                         if (feature.get('type') == 'gasthaus') detail_text += ' zum Gasthaus';
 201                         if (feature.get('thumb_url') === undefined) a.text(detail_text);
 202                         else a.append(createElement('img', {src: feature.get('thumb_url'), alt: detail_text, title: detail_text}));
 203                 }
 204
 205                 return popup_div;
 206         }
 207
 208
 209         /*
 210         // point layer
 211         // -----------
 212         var filter_point_sledrun = new OpenLayers.Filter.Comparison({
 213                 type: OpenLayers.Filter.Comparison.EQUAL_TO,
 214                 property: 'type',
 215                 value: 'sledrun'
 216         });
 217
 218
 219         var layer_point = new OpenLayers.Layer.Vector("Point", {
 220                 styleMap: new OpenLayers.StyleMap({
 221                         'default': new OpenLayers.Style({
 222                                         graphicZIndex: 12,
 223                                         backgroundGraphicZIndex: 11,
 224                                 }, {
 225                                         context: {
 226                                                 // the following context functions should only be available in the rule that uses them,
 227                                                 // but the rule dependent contexts are ignored by OpenLayers (I think that's a bug)
 228                                                 getCondition: get_sledrun_condition,
 229                                                 getSymbol: function(feature) {
 230                                                         var name = feature.attributes.type;
 231                                                         return name;
 232                                                 }
 233                                         },
 234                                         rules: [
 235                                                 new OpenLayers.Rule({
 236                                                         filter: filter_point_sledrun,
 237                                                         symbolizer: {
 238                                                                 externalGraphic: img_path + '/marker_c_sledrun_${getCondition}nn.png',
 239                                                                 graphicWidth: 17,
 240                                                                 graphicHeight: 17,
 241                                                                 graphicXOffset: -8,
 242                                                                 graphicYOffset: -8,
 243                                                                 backgroundGraphic: img_path + '/marker_c_shadow.png',
 244                                                                 backgroundWidth: 23,
 245                                                                 backgroundHeight: 23,
 246                                                                 backgroundXOffset: -8,
 247                                                                 backgroundYOffset: -8,
 248                                                         }
 249                                                 }),
 250                                                 new OpenLayers.Rule({
 251                                                         elseFilter: true,
 252                                                         symbolizer: {
 253                                                                 externalGraphic: img_path + '/marker_p_${getSymbol}.png',
 254                                                                 graphicWidth: 20,
 255                                                                 graphicHeight: 34,
 256                                                                 graphicXOffset: -10,
 257                                                                 graphicYOffset: -33,
 258                                                         }
 259                                                 })
 260                                         ]
 261                                 }),
 262                         highlight: new OpenLayers.Style({
 263                                         label: "${getTitle}",
 264                                         labelOutlineColor: "white",
 265                                         fontWeight: "bold"
 266                                 }, {
 267                                         context: {
 268                                                 getCondition: get_sledrun_condition,
 269                                                 getTitle: function(feature) {
 270                                                         var title = '';
 271                                                         if (feature.attributes.type != 'point') {
 272                                                                 title = feature.attributes.type;
 273                                                                 title = title.charAt(0).toUpperCase() + title.slice(1); // First letter uppercase
 274                                                                 if (feature.attributes.name !== undefined) title += ': ';
 275                                                         }
 276                                                         if (feature.attributes.name !== undefined) title += feature.attributes.name;
 277                                                         return title;
 278                                                 }
 279                                         },
 280                                         rules: [
 281                                                 new OpenLayers.Rule({
 282                                                         filter: filter_point_sledrun,
 283                                                         symbolizer: {
 284                                                                 label: "${name}",
 285                                                                 labelYOffset: 14,
 286                                                                 externalGraphic: img_path + '/marker_c_sledrun_${getCondition}nh.png'
 287                                                         }
 288                                                 }),
 289                                                 new OpenLayers.Rule({
 290                                                         elseFilter: true,
 291                                                         symbolizer: {
 292                                                                 labelYOffset: 40
 293                                                         }
 294                                                 })
 295                                         ]
 296                                 }),
 297                         select: new OpenLayers.Style({
 298                                         fillOpacity: 1.
 299                                 }, {
 300                                         context: {
 301                                                 getCondition: get_sledrun_condition,
 302                                         },
 303                                         rules: [
 304                                                 new OpenLayers.Rule({
 305                                                         filter: filter_point_sledrun,
 306                                                         symbolizer: {
 307                                                                 externalGraphic: img_path + '/marker_c_sledrun_${getCondition}nh.png',
 308                                                                 backgroundGraphic: false,
 309                                                                 graphicXOffset: -6,
 310                                                                 graphicYOffset: -6
 311                                                         }
 312                                                 }),
 313                                                 new OpenLayers.Rule({
 314                                                         elseFilter: true
 315                                                 })
 316                                         ]
 317                                 })
 318                 }),
 319                 rendererOptions: {yOrdering: true}
 320         });
 321
 322 */
 323         // map itself
 324         // ----------
 325         var lon = json_js.properties.lon;
 326         var lat = json_js.properties.lat;
 327         var zoom = json_js.properties.zoom;
 328         var width = json_js.properties.width;
 329         var height = json_js.properties.height;
 330         if (zoom === undefined) zoom = 10; // default zoom
 331         if (width === undefined) width = '100%'; // default width
 332         if (height === undefined) height = 450;  // default: 450 pixel
 333         jq_map.width(width);
 334         jq_map.height(height);
 335
 336         var layer_sledrun_source = new ol.source.Vector({features: features_all});
 337         var layer_sledrun = new ol.layer.Vector({
 338                 source: layer_sledrun_source,
 339                 style: style_function
 340         });
 341
 342         var map = new ol.Map({
 343                 target: jq_map[0],
 344                 layers: [
 345                         layer_map,
 346                         layer_sledrun
 347                 ],
 348                 overlays: [popup_overlay],
 349                 view: new ol.View({
 350                         center: ol.proj.fromLonLat([lon, lat]),
 351                         zoom: zoom
 352                 }),
 353                 controls: ol.control.defaults({
 354                         attributionOptions: {
 355                                 collapsible: false
 356                         }
 357                 }),
 358                 interactions: ol.interaction.defaults({
 359                         mouseWheelZoom: false
 360                 })
 361         });
 362
 363
 364         var select_hover = new ol.interaction.Select({
 365                 condition: ol.events.condition.pointerMove,
 366                 style: style_function_selected,
 367         });
 368         map.addInteraction(select_hover);
 369
 370         var select_click = new ol.interaction.Select({
 371                 condition: ol.events.condition.click,
 372         });
 373         map.addInteraction(select_click);
 374         select_click.on('select', function(event) {
 375                 if (event.selected.length > 0) {
 376                         let feature = event.selected[0];
 377                         let coordinates = feature.getGeometry().getCoordinates();
 378                         let popup_dom = create_popup_dom(feature);
 379                         $(popup_content).empty().append(popup_dom);
 380                         popup_overlay.setPosition(coordinates);
 381                 }
 382         });
 383 }
 384
 385 function init_wrmaps() {
 386         var jq_maps = $('.wrmap'); // all wrmap <div> elements
 387         jq_maps.each(init_wrmap);
 388 }
 389
 390
 391 $(document).ready(init_wrmaps);
 392