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         // Returns 0 to 5 for features that represent sledruns as their condition
 104         var get_sledrun_condition = function(feature) {
 105                 var condition = feature.get('condition');
 106                 if (condition === undefined) return 0;
 107                 return condition;
 108         }
 109
 110         function style_point_function(feature, resolution) {
 111                 if (feature.get('type') == 'sledrun') {
 112                         var condition = get_sledrun_condition(feature);
 113                         var src = img_path + '/marker_c_sledrun_' + condition + 'nn.png';
 114                         return new ol.style.Style({
 115                                 image: new ol.style.Icon({
 116                                         src: src,
 117                                         imgSize: [17, 17],
 118                                         anchor: [0.5, 0.5]
 119                                 }),
 120                         });
 121                 } else {
 122                         var src = img_path + '/marker_p_' + feature.get('type') + '.png';
 123                         return new ol.style.Style({
 124                                 image: new ol.style.Icon({
 125                                         src: src,
 126                                         imgSize: [20, 34],
 127                                         anchor: [0.5, 1.0]
 128                                 }),
 129                         });
 130                 }
 131         }
 132
 133         function style_point_function_selected(feature, resolution) {
 134                 var style = style_point_function(feature, resolution);
 135                 style.setText(new ol.style.Text({
 136                         text: get_feature_title(feature),
 137                         font: 'icon',
 138                         offsetY: 14,
 139                         stroke: new ol.style.Stroke({
 140                                 color: '#ddd',
 141                                 width: 2,
 142                         }),
 143                 }));
 144                 return style;
 145         }
 146
 147         function style_path_function(feature, resolution) {
 148                 var line_color = {
 149                         'rodelbahn': '#014e9a',
 150                         'gehweg': '#e98401',
 151                         'alternative': '#7f7fff',
 152                         'lift': '#000000',
 153                         'anfahrt': '#e1e100'
 154                 };
 155                 var color = feature.get('strokeColor') || line_color[feature.get('type')] || '#e7525b';
 156                 var width = (feature.get('type') in ['lift', 'anfahrt']) ? 3 : 6;
 157                 return new ol.style.Style({
 158                         stroke: new ol.style.Stroke({
 159                                 color: color,
 160                                 width: width
 161                         })
 162                 });
 163         }
 164
 165         function style_function(feature, resolution) {
 166                 if (feature.getGeometry() instanceof ol.geom.Point) return style_point_function(feature, resolution);
 167                 return style_path_function(feature, resolution);
 168         };
 169
 170         function style_function_selected(feature, resolution) {
 171                 if (feature.getGeometry() instanceof ol.geom.Point) return style_point_function_selected(feature, resolution);
 172                 return style_path_function(feature, resolution);
 173         };
 174
 175
 176         // popup overlay
 177         // -------------
 178         var popup_container = document.getElementById('popup');
 179         var popup_content = document.getElementById('popup-content');
 180         var popup_closer = document.getElementById('popup-closer');
 181         var popup_overlay = new ol.Overlay({element: popup_container, autoPan: true, autoPanAnimation: {duration: 250}});
 182         popup_closer.onclick = function() {popup_overlay.setPosition(undefined); popup_closer.blur(); return false;};
 183
 184         /*
 185         var layer_path = new OpenLayers.Layer.Vector("Path", {
 186                 styleMap: new OpenLayers.StyleMap(new OpenLayers.Style({
 187                                 strokeColor: '${getStrokeColor}',
 188                                 strokeWidth: '${getStrokeWidth}'
 189                         }, {
 190                                 context: {
 191                                         getStrokeColor: function(feature) {
 192                                                 if (feature.attributes.strokeColor !== undefined) return feature.attributes.strokeColor;
 193                                                 if (feature.attributes.type == 'rodelbahn') return '#014e9a';
 194                                                 if (feature.attributes.type == 'gehweg') return '#e98401';
 195                                                 if (feature.attributes.type == 'alternative') return '#7f7fff';
 196                                                 if (feature.attributes.type == 'lift') return '#000000';
 197                                                 if (feature.attributes.type == 'anfahrt') return '#e1e100';
 198                                                 return '#e7525b';
 199                                         },
 200                                         getStrokeWidth: function(feature) {
 201                                                 if (feature.attributes.strokeWidth !== undefined) return feature.attributes.strokeWidth;
 202                                                 if (feature.attributes.type == 'lift' || feature.attributes.type == 'anfahrt') return 3;
 203                                                 return 6;
 204                                         }
 205                                 }
 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 map = new OpenLayers.Map(jq_map[0], {
 337                 projection: EPSG3857,
 338                 displayProjection: EPSG4326,
 339                 units: "m",
 340                 theme: null,
 341                 layers: [layer_map, layer_path, layer_point],
 342                 center: new OpenLayers.LonLat(lon, lat).transform(EPSG4326, EPSG3857),
 343                 zoom: zoom
 344         });
 345         */
 346
 347         var layer_sledrun_source = new ol.source.Vector({features: features_all});
 348         var layer_sledrun = new ol.layer.Vector({
 349                 source: layer_sledrun_source,
 350                 style: style_function
 351         });
 352
 353         var map = new ol.Map({
 354                 target: jq_map[0],
 355                 layers: [
 356                         layer_map,
 357                         layer_sledrun
 358                 ],
 359                 overlays: [popup_overlay],
 360                 view: new ol.View({
 361                         center: ol.proj.fromLonLat([lon, lat]),
 362                         zoom: zoom
 363                 }),
 364                 controls: ol.control.defaults({
 365                         attributionOptions: {
 366                                 collapsible: false
 367                         }
 368                 }),
 369                 interactions: ol.interaction.defaults({
 370                         mouseWheelZoom: false
 371                 })
 372         });
 373
 374
 375         var select_hover = new ol.interaction.Select({
 376                 condition: ol.events.condition.pointerMove,
 377                 style: style_function_selected,
 378         });
 379         map.addInteraction(select_hover);
 380
 381         var select_click = new ol.interaction.Select({
 382                 condition: ol.events.condition.click,
 383         });
 384         map.addInteraction(select_click);
 385         select_click.on('select', function(event) {
 386                 popup_content.innerHTML = '<p>You clicked</p>';
 387                 popup_overlay.setPosition(event.coordinate);
 388         });
 389
 390         /*
 391         // add features
 392         // if this would be done before the layer is added to the map, the features are not added
 393         layer_path.addFeatures(features_path);
 394         layer_point.addFeatures(features_point);
 395
 396         // disable mouse wheel zoom
 397         var navigation_control = map.getControlsByClass('OpenLayers.Control.Navigation')[0];
 398         navigation_control.disableZoomWheel();
 399
 400         // layer switcher
 401         // map.addControl(new OpenLayers.Control.LayerSwitcher());
 402
 403         // print sledrun name when mouse moves over it
 404         map.addControl(new OpenLayers.Control.SelectFeature(layer_point, {
 405                 hover: true,
 406                 highlightOnly: true,
 407                 autoActivate: true,
 408                 renderIntent: "highlight"
 409         }));
 410
 411         // show popup when user clicks on a sledrun icon
 412         map.addControl(new OpenLayers.Control.SelectFeature(layer_point, {
 413                 autoActivate: true,
 414                 toggle: true,
 415                 onSelect: function(feature) {
 416                         var attr = feature.attributes;
 417                         var popup_div = createElement('div');
 418
 419                         // name
 420                         if (attr.name !== undefined && (attr.wiki !== undefined || attr.thumb_url !== undefined)) {
 421                                 var h2 = appendElement(popup_div, 'h2');
 422                                 if (attr.wiki === undefined) h2.text(attr.name);
 423                                 else appendElement(h2, 'a', {href: attr.wiki}).text(attr.name);
 424                         }
 425
 426                         // sledrun information
 427                         if (attr.type == 'sledrun') {
 428                                 var p = appendElement(popup_div, 'p').text('Rodelbahnzustand').append(createElement('br'));
 429                                 if (attr.condition !== undefined) {
 430                                         var condition_text = {1: 'Sehr gut', 2: 'Gut', 3: 'Mittelmäßig', 4: 'Schlecht', 5: 'Geht nicht'};
 431                                         var year_month_day = attr.date_report.split('-');
 432                                         p.append(createElement('a', {href: attr.wiki + '#Eintr.C3.A4ge'}).text(condition_text[attr.condition]), ' ');
 433                                         p.append(createElement('small').text(year_month_day[2] + '.' + year_month_day[1] + '.'), ' ');
 434                                         p.append(createElement('em').append(createElement('a', {href: attr.wiki + '#Eintragen'}).text('Neu')));
 435                                 } else {
 436                                         p.append(createElement('em').append(createElement('a', {href: attr.wiki + '#Eintragen'}).text('Bitte eintragen')));
 437                                 }
 438                         }
 439
 440                         // wiki link
 441                         if (attr.wiki !== undefined) {
 442                                 var a = appendElement(appendElement(popup_div, 'p'), 'a', {href: attr.wiki});
 443                                 var detail_text = 'Details';
 444                                 if (attr.type == 'sledrun') detail_text += ' zur Rodelbahn';
 445                                 if (attr.type == 'gasthaus') detail_text += ' zum Gasthaus';
 446                                 if (attr.thumb_url === undefined) a.text(detail_text);
 447                                 else a.append(createElement('img', {src: attr.thumb_url, alt: detail_text, title: detail_text}));
 448                         }
 449
 450                         // no popup if we don't have anything to say
 451                         if (popup_div.children().length == 0) return;
 452
 453                         // Open popup
 454                         var selectFeatureControl = this;
 455                         var popup = new OpenLayers.Popup.WrInfo('sledruninfopopup_' + attr.wiki,
 456                         feature.geometry.getBounds().getCenterLonLat(),
 457                         null,
 458                         popup_div.html(),
 459                         null, true, function(event) {
 460                                 // onPopupClose
 461                                 selectFeatureControl.unselectAll();
 462                         });
 463                         feature.popup = popup;
 464                         map.addPopup(popup);
 465                 },
 466                 onUnselect: function(feature) {
 467                         if (feature.popup === null) return;
 468
 469                         // Close popup
 470                         map.removePopup(feature.popup);
 471                         feature.popup.destroy();
 472                         feature.popup = null;
 473                 }
 474         }));
 475 */
 476 }
 477
 478 function init_wrmaps() {
 479         var jq_maps = $('.wrmap'); // all wrmap <div> elements
 480         jq_maps.each(init_wrmap);
 481 }
 482
 483
 484 $(document).ready(init_wrmaps);
 485