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                 if (title == 'sledrun') return feature.get('name');
  99                 title = title.charAt(0).toUpperCase() + title.slice(1); // first letter uppercase
 100                 if (feature.get('name')) title += ': ' + feature.get('name');
 101                 return title;
 102         }
 103
 104         // Returns 0 to 5 for features that represent sledruns as their condition
 105         var get_sledrun_condition = function(feature) {
 106                 var condition = feature.get('condition');
 107                 if (condition === undefined) return 0;
 108                 return condition;
 109         }
 110
 111         function style_point_function(feature, resolution) {
 112                 if (feature.get('type') == 'sledrun') {
 113                         var condition = get_sledrun_condition(feature);
 114                         var src = img_path + '/marker_c_sledrun_' + condition + 'nn.png';
 115                         return new ol.style.Style({
 116                                 image: new ol.style.Icon({
 117                                         src: src,
 118                                         imgSize: [17, 17],
 119                                         anchor: [0.5, 0.5]
 120                                 }),
 121                         });
 122                 } else {
 123                         var src = img_path + '/marker_p_' + feature.get('type') + '.png';
 124                         return new ol.style.Style({
 125                                 image: new ol.style.Icon({
 126                                         src: src,
 127                                         imgSize: [20, 34],
 128                                         anchor: [0.5, 1.0]
 129                                 }),
 130                         });
 131                 }
 132         }
 133
 134         function style_point_function_selected(feature, resolution) {
 135                 var style = style_point_function(feature, resolution);
 136                 style.setText(new ol.style.Text({
 137                         text: get_feature_title(feature),
 138                         font: 'icon',
 139                         offsetY: 14,
 140                         stroke: new ol.style.Stroke({
 141                                 color: '#ddd',
 142                                 width: 2,
 143                         }),
 144                 }));
 145                 return style;
 146         }
 147
 148         function style_path_function(feature, resolution) {
 149                 var line_color = {
 150                         'rodelbahn': '#014e9a',
 151                         'gehweg': '#e98401',
 152                         'alternative': '#7f7fff',
 153                         'lift': '#000000',
 154                         'anfahrt': '#e1e100'
 155                 };
 156                 var color = feature.get('strokeColor') || line_color[feature.get('type')] || '#e7525b';
 157                 var width = (feature.get('type') in ['lift', 'anfahrt']) ? 3 : 6;
 158                 return new ol.style.Style({
 159                         stroke: new ol.style.Stroke({
 160                                 color: color,
 161                                 width: width
 162                         })
 163                 });
 164         }
 165
 166         function style_function(feature, resolution) {
 167                 if (feature.getGeometry() instanceof ol.geom.Point) return style_point_function(feature, resolution);
 168                 return style_path_function(feature, resolution);
 169         };
 170
 171         function style_function_selected(feature, resolution) {
 172                 if (feature.getGeometry() instanceof ol.geom.Point) return style_point_function_selected(feature, resolution);
 173                 return style_path_function(feature, resolution);
 174         };
 175
 176
 177         // popup overlay
 178         // -------------
 179         var popup_container = document.getElementById('popup');
 180         var popup_content = document.getElementById('popup-content');
 181         var popup_closer = document.getElementById('popup-closer');
 182         var popup_overlay = new ol.Overlay({element: popup_container, autoPan: true, autoPanAnimation: {duration: 250}});
 183         popup_closer.onclick = function() {popup_overlay.setPosition(undefined); popup_closer.blur(); return false;};
 184
 185         /*
 186         var layer_path = new OpenLayers.Layer.Vector("Path", {
 187                 styleMap: new OpenLayers.StyleMap(new OpenLayers.Style({
 188                                 strokeColor: '${getStrokeColor}',
 189                                 strokeWidth: '${getStrokeWidth}'
 190                         }, {
 191                                 context: {
 192                                         getStrokeColor: function(feature) {
 193                                                 if (feature.attributes.strokeColor !== undefined) return feature.attributes.strokeColor;
 194                                                 if (feature.attributes.type == 'rodelbahn') return '#014e9a';
 195                                                 if (feature.attributes.type == 'gehweg') return '#e98401';
 196                                                 if (feature.attributes.type == 'alternative') return '#7f7fff';
 197                                                 if (feature.attributes.type == 'lift') return '#000000';
 198                                                 if (feature.attributes.type == 'anfahrt') return '#e1e100';
 199                                                 return '#e7525b';
 200                                         },
 201                                         getStrokeWidth: function(feature) {
 202                                                 if (feature.attributes.strokeWidth !== undefined) return feature.attributes.strokeWidth;
 203                                                 if (feature.attributes.type == 'lift' || feature.attributes.type == 'anfahrt') return 3;
 204                                                 return 6;
 205                                         }
 206                                 }
 207                         }))
 208         });
 209
 210
 211         // point layer
 212         // -----------
 213         var filter_point_sledrun = new OpenLayers.Filter.Comparison({
 214                 type: OpenLayers.Filter.Comparison.EQUAL_TO,
 215                 property: 'type',
 216                 value: 'sledrun'
 217         });
 218
 219
 220         var layer_point = new OpenLayers.Layer.Vector("Point", {
 221                 styleMap: new OpenLayers.StyleMap({
 222                         'default': new OpenLayers.Style({
 223                                         graphicZIndex: 12,
 224                                         backgroundGraphicZIndex: 11,
 225                                 }, {
 226                                         context: {
 227                                                 // the following context functions should only be available in the rule that uses them,
 228                                                 // but the rule dependent contexts are ignored by OpenLayers (I think that's a bug)
 229                                                 getCondition: get_sledrun_condition,
 230                                                 getSymbol: function(feature) {
 231                                                         var name = feature.attributes.type;
 232                                                         return name;
 233                                                 }
 234                                         },
 235                                         rules: [
 236                                                 new OpenLayers.Rule({
 237                                                         filter: filter_point_sledrun,
 238                                                         symbolizer: {
 239                                                                 externalGraphic: img_path + '/marker_c_sledrun_${getCondition}nn.png',
 240                                                                 graphicWidth: 17,
 241                                                                 graphicHeight: 17,
 242                                                                 graphicXOffset: -8,
 243                                                                 graphicYOffset: -8,
 244                                                                 backgroundGraphic: img_path + '/marker_c_shadow.png',
 245                                                                 backgroundWidth: 23,
 246                                                                 backgroundHeight: 23,
 247                                                                 backgroundXOffset: -8,
 248                                                                 backgroundYOffset: -8,
 249                                                         }
 250                                                 }),
 251                                                 new OpenLayers.Rule({
 252                                                         elseFilter: true,
 253                                                         symbolizer: {
 254                                                                 externalGraphic: img_path + '/marker_p_${getSymbol}.png',
 255                                                                 graphicWidth: 20,
 256                                                                 graphicHeight: 34,
 257                                                                 graphicXOffset: -10,
 258                                                                 graphicYOffset: -33,
 259                                                         }
 260                                                 })
 261                                         ]
 262                                 }),
 263                         highlight: new OpenLayers.Style({
 264                                         label: "${getTitle}",
 265                                         labelOutlineColor: "white",
 266                                         fontWeight: "bold"
 267                                 }, {
 268                                         context: {
 269                                                 getCondition: get_sledrun_condition,
 270                                                 getTitle: function(feature) {
 271                                                         var title = '';
 272                                                         if (feature.attributes.type != 'point') {
 273                                                                 title = feature.attributes.type;
 274                                                                 title = title.charAt(0).toUpperCase() + title.slice(1); // First letter uppercase
 275                                                                 if (feature.attributes.name !== undefined) title += ': ';
 276                                                         }
 277                                                         if (feature.attributes.name !== undefined) title += feature.attributes.name;
 278                                                         return title;
 279                                                 }
 280                                         },
 281                                         rules: [
 282                                                 new OpenLayers.Rule({
 283                                                         filter: filter_point_sledrun,
 284                                                         symbolizer: {
 285                                                                 label: "${name}",
 286                                                                 labelYOffset: 14,
 287                                                                 externalGraphic: img_path + '/marker_c_sledrun_${getCondition}nh.png'
 288                                                         }
 289                                                 }),
 290                                                 new OpenLayers.Rule({
 291                                                         elseFilter: true,
 292                                                         symbolizer: {
 293                                                                 labelYOffset: 40
 294                                                         }
 295                                                 })
 296                                         ]
 297                                 }),
 298                         select: new OpenLayers.Style({
 299                                         fillOpacity: 1.
 300                                 }, {
 301                                         context: {
 302                                                 getCondition: get_sledrun_condition,
 303                                         },
 304                                         rules: [
 305                                                 new OpenLayers.Rule({
 306                                                         filter: filter_point_sledrun,
 307                                                         symbolizer: {
 308                                                                 externalGraphic: img_path + '/marker_c_sledrun_${getCondition}nh.png',
 309                                                                 backgroundGraphic: false,
 310                                                                 graphicXOffset: -6,
 311                                                                 graphicYOffset: -6
 312                                                         }
 313                                                 }),
 314                                                 new OpenLayers.Rule({
 315                                                         elseFilter: true
 316                                                 })
 317                                         ]
 318                                 })
 319                 }),
 320                 rendererOptions: {yOrdering: true}
 321         });
 322
 323 */
 324         // map itself
 325         // ----------
 326         var lon = json_js.properties.lon;
 327         var lat = json_js.properties.lat;
 328         var zoom = json_js.properties.zoom;
 329         var width = json_js.properties.width;
 330         var height = json_js.properties.height;
 331         if (zoom === undefined) zoom = 10; // default zoom
 332         if (width === undefined) width = '100%'; // default width
 333         if (height === undefined) height = 450;  // default: 450 pixel
 334         jq_map.width(width);
 335         jq_map.height(height);
 336         /*
 337         var map = new OpenLayers.Map(jq_map[0], {
 338                 projection: EPSG3857,
 339                 displayProjection: EPSG4326,
 340                 units: "m",
 341                 theme: null,
 342                 layers: [layer_map, layer_path, layer_point],
 343                 center: new OpenLayers.LonLat(lon, lat).transform(EPSG4326, EPSG3857),
 344                 zoom: zoom
 345         });
 346         */
 347
 348         var layer_sledrun_source = new ol.source.Vector({features: features_all});
 349         var layer_sledrun = new ol.layer.Vector({
 350                 source: layer_sledrun_source,
 351                 style: style_function
 352         });
 353
 354         var map = new ol.Map({
 355                 target: jq_map[0],
 356                 layers: [
 357                         layer_map,
 358                         layer_sledrun
 359                 ],
 360                 overlays: [popup_overlay],
 361                 view: new ol.View({
 362                         center: ol.proj.fromLonLat([lon, lat]),
 363                         zoom: zoom
 364                 }),
 365                 controls: ol.control.defaults({
 366                         attributionOptions: {
 367                                 collapsible: false
 368                         }
 369                 }),
 370                 interactions: ol.interaction.defaults({
 371                         mouseWheelZoom: false
 372                 })
 373         });
 374
 375
 376         var select_hover = new ol.interaction.Select({
 377                 condition: ol.events.condition.pointerMove,
 378                 style: style_function_selected,
 379         });
 380         map.addInteraction(select_hover);
 381
 382         var select_click = new ol.interaction.Select({
 383                 condition: ol.events.condition.click,
 384         });
 385         map.addInteraction(select_click);
 386         select_click.on('select', function(event) {
 387                 if (event.selected.length > 0) {
 388                         let feature = event.selected[0];
 389                         let coordinates = feature.getGeometry().getCoordinates();
 390                         popup_content.innerHTML = '<p>You clicked</p>';
 391                         popup_overlay.setPosition(coordinates);
 392                 }
 393         });
 394
 395         /*
 396         // add features
 397         // if this would be done before the layer is added to the map, the features are not added
 398         layer_path.addFeatures(features_path);
 399         layer_point.addFeatures(features_point);
 400
 401         // disable mouse wheel zoom
 402         var navigation_control = map.getControlsByClass('OpenLayers.Control.Navigation')[0];
 403         navigation_control.disableZoomWheel();
 404
 405         // layer switcher
 406         // map.addControl(new OpenLayers.Control.LayerSwitcher());
 407
 408         // print sledrun name when mouse moves over it
 409         map.addControl(new OpenLayers.Control.SelectFeature(layer_point, {
 410                 hover: true,
 411                 highlightOnly: true,
 412                 autoActivate: true,
 413                 renderIntent: "highlight"
 414         }));
 415
 416         // show popup when user clicks on a sledrun icon
 417         map.addControl(new OpenLayers.Control.SelectFeature(layer_point, {
 418                 autoActivate: true,
 419                 toggle: true,
 420                 onSelect: function(feature) {
 421                         var attr = feature.attributes;
 422                         var popup_div = createElement('div');
 423
 424                         // name
 425                         if (attr.name !== undefined && (attr.wiki !== undefined || attr.thumb_url !== undefined)) {
 426                                 var h2 = appendElement(popup_div, 'h2');
 427                                 if (attr.wiki === undefined) h2.text(attr.name);
 428                                 else appendElement(h2, 'a', {href: attr.wiki}).text(attr.name);
 429                         }
 430
 431                         // sledrun information
 432                         if (attr.type == 'sledrun') {
 433                                 var p = appendElement(popup_div, 'p').text('Rodelbahnzustand').append(createElement('br'));
 434                                 if (attr.condition !== undefined) {
 435                                         var condition_text = {1: 'Sehr gut', 2: 'Gut', 3: 'Mittelmäßig', 4: 'Schlecht', 5: 'Geht nicht'};
 436                                         var year_month_day = attr.date_report.split('-');
 437                                         p.append(createElement('a', {href: attr.wiki + '#Eintr.C3.A4ge'}).text(condition_text[attr.condition]), ' ');
 438                                         p.append(createElement('small').text(year_month_day[2] + '.' + year_month_day[1] + '.'), ' ');
 439                                         p.append(createElement('em').append(createElement('a', {href: attr.wiki + '#Eintragen'}).text('Neu')));
 440                                 } else {
 441                                         p.append(createElement('em').append(createElement('a', {href: attr.wiki + '#Eintragen'}).text('Bitte eintragen')));
 442                                 }
 443                         }
 444
 445                         // wiki link
 446                         if (attr.wiki !== undefined) {
 447                                 var a = appendElement(appendElement(popup_div, 'p'), 'a', {href: attr.wiki});
 448                                 var detail_text = 'Details';
 449                                 if (attr.type == 'sledrun') detail_text += ' zur Rodelbahn';
 450                                 if (attr.type == 'gasthaus') detail_text += ' zum Gasthaus';
 451                                 if (attr.thumb_url === undefined) a.text(detail_text);
 452                                 else a.append(createElement('img', {src: attr.thumb_url, alt: detail_text, title: detail_text}));
 453                         }
 454
 455                         // no popup if we don't have anything to say
 456                         if (popup_div.children().length == 0) return;
 457
 458                         // Open popup
 459                         var selectFeatureControl = this;
 460                         var popup = new OpenLayers.Popup.WrInfo('sledruninfopopup_' + attr.wiki,
 461                         feature.geometry.getBounds().getCenterLonLat(),
 462                         null,
 463                         popup_div.html(),
 464                         null, true, function(event) {
 465                                 // onPopupClose
 466                                 selectFeatureControl.unselectAll();
 467                         });
 468                         feature.popup = popup;
 469                         map.addPopup(popup);
 470                 },
 471                 onUnselect: function(feature) {
 472                         if (feature.popup === null) return;
 473
 474                         // Close popup
 475                         map.removePopup(feature.popup);
 476                         feature.popup.destroy();
 477                         feature.popup = null;
 478                 }
 479         }));
 480 */
 481 }
 482
 483 function init_wrmaps() {
 484         var jq_maps = $('.wrmap'); // all wrmap <div> elements
 485         jq_maps.each(init_wrmap);
 486 }
 487
 488
 489 $(document).ready(init_wrmaps);
 490