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         // popup overlay
 157         // -------------
 158         var popup_container = document.getElementById('popup');
 159         var popup_content = document.getElementById('popup-content');
 160         var popup_closer = document.getElementById('popup-closer');
 161         var popup_overlay = new ol.Overlay({element: popup_container, autoPan: true, autoPanAnimation: {duration: 250}});
 162         popup_closer.onclick = function() {popup_overlay.setPosition(undefined); popup_closer.blur(); return false;};
 163
 164         /*
 165         var layer_path = new OpenLayers.Layer.Vector("Path", {
 166                 styleMap: new OpenLayers.StyleMap(new OpenLayers.Style({
 167                                 strokeColor: '${getStrokeColor}',
 168                                 strokeWidth: '${getStrokeWidth}'
 169                         }, {
 170                                 context: {
 171                                         getStrokeColor: function(feature) {
 172                                                 if (feature.attributes.strokeColor !== undefined) return feature.attributes.strokeColor;
 173                                                 if (feature.attributes.type == 'rodelbahn') return '#014e9a';
 174                                                 if (feature.attributes.type == 'gehweg') return '#e98401';
 175                                                 if (feature.attributes.type == 'alternative') return '#7f7fff';
 176                                                 if (feature.attributes.type == 'lift') return '#000000';
 177                                                 if (feature.attributes.type == 'anfahrt') return '#e1e100';
 178                                                 return '#e7525b';
 179                                         },
 180                                         getStrokeWidth: function(feature) {
 181                                                 if (feature.attributes.strokeWidth !== undefined) return feature.attributes.strokeWidth;
 182                                                 if (feature.attributes.type == 'lift' || feature.attributes.type == 'anfahrt') return 3;
 183                                                 return 6;
 184                                         }
 185                                 }
 186                         }))
 187         });
 188
 189
 190         // point layer
 191         // -----------
 192         var filter_point_sledrun = new OpenLayers.Filter.Comparison({
 193                 type: OpenLayers.Filter.Comparison.EQUAL_TO,
 194                 property: 'type',
 195                 value: 'sledrun'
 196         });
 197
 198         // Returns 0 to 5 for features that represent sledruns as their condition
 199         var get_sledrun_condition = function(feature) {
 200                 if (feature.attributes.condition === undefined) return 0;
 201                 return feature.attributes.condition;
 202         }
 203
 204
 205         var layer_point = new OpenLayers.Layer.Vector("Point", {
 206                 styleMap: new OpenLayers.StyleMap({
 207                         'default': new OpenLayers.Style({
 208                                         graphicZIndex: 12,
 209                                         backgroundGraphicZIndex: 11,
 210                                 }, {
 211                                         context: {
 212                                                 // the following context functions should only be available in the rule that uses them,
 213                                                 // but the rule dependent contexts are ignored by OpenLayers (I think that's a bug)
 214                                                 getCondition: get_sledrun_condition,
 215                                                 getSymbol: function(feature) {
 216                                                         var name = feature.attributes.type;
 217                                                         return name;
 218                                                 }
 219                                         },
 220                                         rules: [
 221                                                 new OpenLayers.Rule({
 222                                                         filter: filter_point_sledrun,
 223                                                         symbolizer: {
 224                                                                 externalGraphic: img_path + '/marker_c_sledrun_${getCondition}nn.png',
 225                                                                 graphicWidth: 17,
 226                                                                 graphicHeight: 17,
 227                                                                 graphicXOffset: -8,
 228                                                                 graphicYOffset: -8,
 229                                                                 backgroundGraphic: img_path + '/marker_c_shadow.png',
 230                                                                 backgroundWidth: 23,
 231                                                                 backgroundHeight: 23,
 232                                                                 backgroundXOffset: -8,
 233                                                                 backgroundYOffset: -8,
 234                                                         }
 235                                                 }),
 236                                                 new OpenLayers.Rule({
 237                                                         elseFilter: true,
 238                                                         symbolizer: {
 239                                                                 externalGraphic: img_path + '/marker_p_${getSymbol}.png',
 240                                                                 graphicWidth: 20,
 241                                                                 graphicHeight: 34,
 242                                                                 graphicXOffset: -10,
 243                                                                 graphicYOffset: -33,
 244                                                         }
 245                                                 })
 246                                         ]
 247                                 }),
 248                         highlight: new OpenLayers.Style({
 249                                         label: "${getTitle}",
 250                                         labelOutlineColor: "white",
 251                                         fontWeight: "bold"
 252                                 }, {
 253                                         context: {
 254                                                 getCondition: get_sledrun_condition,
 255                                                 getTitle: function(feature) {
 256                                                         var title = '';
 257                                                         if (feature.attributes.type != 'point') {
 258                                                                 title = feature.attributes.type;
 259                                                                 title = title.charAt(0).toUpperCase() + title.slice(1); // First letter uppercase
 260                                                                 if (feature.attributes.name !== undefined) title += ': ';
 261                                                         }
 262                                                         if (feature.attributes.name !== undefined) title += feature.attributes.name;
 263                                                         return title;
 264                                                 }
 265                                         },
 266                                         rules: [
 267                                                 new OpenLayers.Rule({
 268                                                         filter: filter_point_sledrun,
 269                                                         symbolizer: {
 270                                                                 label: "${name}",
 271                                                                 labelYOffset: 14,
 272                                                                 externalGraphic: img_path + '/marker_c_sledrun_${getCondition}nh.png'
 273                                                         }
 274                                                 }),
 275                                                 new OpenLayers.Rule({
 276                                                         elseFilter: true,
 277                                                         symbolizer: {
 278                                                                 labelYOffset: 40
 279                                                         }
 280                                                 })
 281                                         ]
 282                                 }),
 283                         select: new OpenLayers.Style({
 284                                         fillOpacity: 1.
 285                                 }, {
 286                                         context: {
 287                                                 getCondition: get_sledrun_condition,
 288                                         },
 289                                         rules: [
 290                                                 new OpenLayers.Rule({
 291                                                         filter: filter_point_sledrun,
 292                                                         symbolizer: {
 293                                                                 externalGraphic: img_path + '/marker_c_sledrun_${getCondition}nh.png',
 294                                                                 backgroundGraphic: false,
 295                                                                 graphicXOffset: -6,
 296                                                                 graphicYOffset: -6
 297                                                         }
 298                                                 }),
 299                                                 new OpenLayers.Rule({
 300                                                         elseFilter: true
 301                                                 })
 302                                         ]
 303                                 })
 304                 }),
 305                 rendererOptions: {yOrdering: true}
 306         });
 307
 308 */
 309         // map itself
 310         // ----------
 311         var lon = json_js.properties.lon;
 312         var lat = json_js.properties.lat;
 313         var zoom = json_js.properties.zoom;
 314         var width = json_js.properties.width;
 315         var height = json_js.properties.height;
 316         if (zoom === undefined) zoom = 10; // default zoom
 317         if (width === undefined) width = '100%'; // default width
 318         if (height === undefined) height = 450;  // default: 450 pixel
 319         jq_map.width(width);
 320         jq_map.height(height);
 321         /*
 322         var map = new OpenLayers.Map(jq_map.context, {
 323                 projection: EPSG3857,
 324                 displayProjection: EPSG4326,
 325                 units: "m",
 326                 theme: null,
 327                 layers: [layer_map, layer_path, layer_point],
 328                 center: new OpenLayers.LonLat(lon, lat).transform(EPSG4326, EPSG3857),
 329                 zoom: zoom
 330         });
 331         */
 332
 333         var layer_sledrun_source = new ol.source.Vector({features: features_all});
 334         var layer_sledrun = new ol.layer.Vector({
 335                 source: layer_sledrun_source,
 336                 style: style_function
 337         });
 338
 339         var map = new ol.Map({
 340                 target: jq_map.context,
 341                 layers: [
 342                         layer_map,
 343                         layer_sledrun
 344                 ],
 345                 overlays: [popup_overlay],
 346                 view: new ol.View({
 347                         center: ol.proj.fromLonLat([lon, lat]),
 348                         zoom: zoom
 349                 }),
 350                 controls: ol.control.defaults({
 351                         attributionOptions: {
 352                                 collapsible: false
 353                         }
 354                 })
 355         });
 356
 357
 358         var select_hover = new ol.interaction.Select({
 359                 condition: ol.events.condition.pointerMove,
 360                 style: style_function_selected,
 361         });
 362         map.addInteraction(select_hover);
 363         map.on('singleclick', function(event) {
 364                 popup_content.innerHTML = '<p>You clicked</p>';
 365                 popup_overlay.setPosition(event.coordinate);
 366         });
 367         select_hover.on('select', function(event) {
 368                 console.log(event);
 369         });
 370
 371         /*
 372         // add features
 373         // if this would be done before the layer is added to the map, the features are not added
 374         layer_path.addFeatures(features_path);
 375         layer_point.addFeatures(features_point);
 376
 377         // disable mouse wheel zoom
 378         var navigation_control = map.getControlsByClass('OpenLayers.Control.Navigation')[0];
 379         navigation_control.disableZoomWheel();
 380
 381         // layer switcher
 382         // map.addControl(new OpenLayers.Control.LayerSwitcher());
 383
 384         // print sledrun name when mouse moves over it
 385         map.addControl(new OpenLayers.Control.SelectFeature(layer_point, {
 386                 hover: true,
 387                 highlightOnly: true,
 388                 autoActivate: true,
 389                 renderIntent: "highlight"
 390         }));
 391
 392         // show popup when user clicks on a sledrun icon
 393         map.addControl(new OpenLayers.Control.SelectFeature(layer_point, {
 394                 autoActivate: true,
 395                 toggle: true,
 396                 onSelect: function(feature) {
 397                         var attr = feature.attributes;
 398                         var popup_div = createElement('div');
 399
 400                         // name
 401                         if (attr.name !== undefined && (attr.wiki !== undefined || attr.thumb_url !== undefined)) {
 402                                 var h2 = appendElement(popup_div, 'h2');
 403                                 if (attr.wiki === undefined) h2.text(attr.name);
 404                                 else appendElement(h2, 'a', {href: attr.wiki}).text(attr.name);
 405                         }
 406
 407                         // sledrun information
 408                         if (attr.type == 'sledrun') {
 409                                 var p = appendElement(popup_div, 'p').text('Rodelbahnzustand').append(createElement('br'));
 410                                 if (attr.condition !== undefined) {
 411                                         var condition_text = {1: 'Sehr gut', 2: 'Gut', 3: 'Mittelmäßig', 4: 'Schlecht', 5: 'Geht nicht'};
 412                                         var year_month_day = attr.date_report.split('-');
 413                                         p.append(createElement('a', {href: attr.wiki + '#Eintr.C3.A4ge'}).text(condition_text[attr.condition]), ' ');
 414                                         p.append(createElement('small').text(year_month_day[2] + '.' + year_month_day[1] + '.'), ' ');
 415                                         p.append(createElement('em').append(createElement('a', {href: attr.wiki + '#Eintragen'}).text('Neu')));
 416                                 } else {
 417                                         p.append(createElement('em').append(createElement('a', {href: attr.wiki + '#Eintragen'}).text('Bitte eintragen')));
 418                                 }
 419                         }
 420
 421                         // wiki link
 422                         if (attr.wiki !== undefined) {
 423                                 var a = appendElement(appendElement(popup_div, 'p'), 'a', {href: attr.wiki});
 424                                 var detail_text = 'Details';
 425                                 if (attr.type == 'sledrun') detail_text += ' zur Rodelbahn';
 426                                 if (attr.type == 'gasthaus') detail_text += ' zum Gasthaus';
 427                                 if (attr.thumb_url === undefined) a.text(detail_text);
 428                                 else a.append(createElement('img', {src: attr.thumb_url, alt: detail_text, title: detail_text}));
 429                         }
 430
 431                         // no popup if we don't have anything to say
 432                         if (popup_div.children().length == 0) return;
 433
 434                         // Open popup
 435                         var selectFeatureControl = this;
 436                         var popup = new OpenLayers.Popup.WrInfo('sledruninfopopup_' + attr.wiki,
 437                         feature.geometry.getBounds().getCenterLonLat(),
 438                         null,
 439                         popup_div.html(),
 440                         null, true, function(event) {
 441                                 // onPopupClose
 442                                 selectFeatureControl.unselectAll();
 443                         });
 444                         feature.popup = popup;
 445                         map.addPopup(popup);
 446                 },
 447                 onUnselect: function(feature) {
 448                         if (feature.popup === null) return;
 449
 450                         // Close popup
 451                         map.removePopup(feature.popup);
 452                         feature.popup.destroy();
 453                         feature.popup = null;
 454                 }
 455         }));
 456 */
 457 }
 458
 459 function init_wrmaps() {
 460         var jq_maps = $('.wrmap'); // all wrmap <div> elements
 461         jq_maps.each(init_wrmap);
 462 }
 463
 464
 465 $(document).ready(init_wrmaps);
 466