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 function init_wrmap(i, jq_map) {
  17         // define constants
  18         var EPSG4326 = new OpenLayers.Projection("EPSG:4326"); // lon/lat
  19         var EPSG3857 = new OpenLayers.Projection("EPSG:3857"); // google
  20
  21         // tool functions
  22         function createElement(tagName, attributes) {
  23                 var element = $(document.createElement(tagName));
  24                 if (attributes === undefined) return element;
  25                 for (var attribute in attributes) {
  26                         element.attr(attribute, attributes[attribute]);
  27                 }
  28                 return element;
  29         }
  30
  31         function appendElement(parentElement, tagName, attributes) {
  32                 if (attributes === undefined) attributes = {};
  33                 var element = createElement(tagName, attributes);
  34                 parentElement.append(element);
  35                 return element;
  36         }
  37
  38
  39         // extract geojson from map element and clear map element's content
  40         jq_map = $(jq_map);
  41         var ext_path = jq_map.attr('data-ext-path'); // e.g. '/mediawiki/extensions/wrmap'
  42         var img_path = ext_path + '/img';
  43         OpenLayers.ImgPath = ext_path + '/openlayers/img/'; // e.g. '/mediawiki/extensions/wrmap/openlayers/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 format_json = new OpenLayers.Format.JSON();
  47         var json_js = format_json.read(json_string);
  48         var format_geojson = new OpenLayers.Format.GeoJSON();
  49         var features_all = format_geojson.read(json_js);
  50
  51         // extract, tranform and split features to layers
  52         var features_path = new Array();
  53         var features_point = new Array();
  54         for (var i = 0; i != features_all.length; ++i) {
  55                 var feature = features_all[i];
  56                 feature.geometry.transform(EPSG4326, EPSG3857);
  57                 if (feature.geometry instanceof OpenLayers.Geometry.Point) features_point.push(feature);
  58                 else features_path.push(feature);
  59         }
  60
  61
  62         // background layer
  63         // ----------------
  64         // // Google (since about 19th of November 2015 this doesn't work anymore - white background)
  65         // // see https://github.com/openlayers/openlayers/issues/1450
  66         var layer_map = new OpenLayers.Layer.Google("Google Physical", {
  67                 type: google.maps.MapTypeId.TERRAIN
  68         });
  69
  70         // // Alternative: OSM map
  71         // var layer_map = new OpenLayers.Layer.OSM();
  72
  73         // Microsoft Bing Maps
  74         // var layer_map = new OpenLayers.Layer.Bing({
  75         //      type: "Road",
  76         //      key: "AgPH3SlIXAwajrJKf0FORQyhTqsP8KIlvtN6RKfvxe6fOB6q6-HFmg8EOFm7LSOA",
  77         //      tileOptions: {crossOriginKeyword: null}});
  78
  79         // // Alternative: Base map
  80         // // see: http://www.basemap.at
  81
  82         // // Alternative: OpenTopoMap
  83         // // see: https://opentopomap.org/about
  84
  85         // // Alternative: Dummy base layer
  86         // var layer_map = new OpenLayers.Layer.Vector("Base Layer", {
  87         //     isBaseLayer: true});
  88
  89
  90         // path layer
  91         // ----------
  92         var layer_path = new OpenLayers.Layer.Vector("Path", {
  93                 styleMap: new OpenLayers.StyleMap(new OpenLayers.Style({
  94                                 strokeColor: '${getStrokeColor}',
  95                                 strokeWidth: '${getStrokeWidth}'
  96                         }, {
  97                                 context: {
  98                                         getStrokeColor: function(feature) {
  99                                                 if (feature.attributes.strokeColor !== undefined) return feature.attributes.strokeColor;
 100                                                 if (feature.attributes.type == 'rodelbahn') return '#014e9a';
 101                                                 if (feature.attributes.type == 'gehweg') return '#e98401';
 102                                                 if (feature.attributes.type == 'alternative') return '#7f7fff';
 103                                                 if (feature.attributes.type == 'lift') return '#000000';
 104                                                 if (feature.attributes.type == 'anfahrt') return '#e1e100';
 105                                                 return '#e7525b';
 106                                         },
 107                                         getStrokeWidth: function(feature) {
 108                                                 if (feature.attributes.strokeWidth !== undefined) return feature.attributes.strokeWidth;
 109                                                 if (feature.attributes.type == 'lift' || feature.attributes.type == 'anfahrt') return 3;
 110                                                 return 6;
 111                                         }
 112                                 }
 113                         }))
 114         });
 115
 116
 117         // point layer
 118         // -----------
 119         var filter_point_sledrun = new OpenLayers.Filter.Comparison({
 120                 type: OpenLayers.Filter.Comparison.EQUAL_TO,
 121                 property: 'type',
 122                 value: 'sledrun'
 123         });
 124
 125         // Returns 0 to 5 for features that represent sledruns as their condition
 126         var get_sledrun_condition = function(feature) {
 127                 if (feature.attributes.condition === undefined) return 0;
 128                 return feature.attributes.condition;
 129         }
 130
 131
 132         var layer_point = new OpenLayers.Layer.Vector("Point", {
 133                 styleMap: new OpenLayers.StyleMap({
 134                         'default': new OpenLayers.Style({
 135                                         graphicZIndex: 12,
 136                                         backgroundGraphicZIndex: 11,
 137                                 }, {
 138                                         context: {
 139                                                 // the following context functions should only be available in the rule that uses them,
 140                                                 // but the rule dependent contexts are ignored by OpenLayers (I think that's a bug)
 141                                                 getCondition: get_sledrun_condition,
 142                                                 getSymbol: function(feature) {
 143                                                         var name = feature.attributes.type;
 144                                                         return name;
 145                                                 }
 146                                         },
 147                                         rules: [
 148                                                 new OpenLayers.Rule({
 149                                                         filter: filter_point_sledrun,
 150                                                         symbolizer: {
 151                                                                 externalGraphic: img_path + '/marker_c_sledrun_${getCondition}nn.png',
 152                                                                 graphicWidth: 17,
 153                                                                 graphicHeight: 17,
 154                                                                 graphicXOffset: -8,
 155                                                                 graphicYOffset: -8,
 156                                                                 backgroundGraphic: img_path + '/marker_c_shadow.png',
 157                                                                 backgroundWidth: 23,
 158                                                                 backgroundHeight: 23,
 159                                                                 backgroundXOffset: -8,
 160                                                                 backgroundYOffset: -8,
 161                                                         }
 162                                                 }),
 163                                                 new OpenLayers.Rule({
 164                                                         elseFilter: true,
 165                                                         symbolizer: {
 166                                                                 externalGraphic: img_path + '/marker_p_${getSymbol}.png',
 167                                                                 graphicWidth: 20,
 168                                                                 graphicHeight: 34,
 169                                                                 graphicXOffset: -10,
 170                                                                 graphicYOffset: -33,
 171                                                         }
 172                                                 })
 173                                         ]
 174                                 }),
 175                         highlight: new OpenLayers.Style({
 176                                         label: "${getTitle}",
 177                                         labelOutlineColor: "white",
 178                                         fontWeight: "bold"
 179                                 }, {
 180                                         context: {
 181                                                 getCondition: get_sledrun_condition,
 182                                                 getTitle: function(feature) {
 183                                                         var title = '';
 184                                                         if (feature.attributes.type != 'point') {
 185                                                                 title = feature.attributes.type;
 186                                                                 title = title.charAt(0).toUpperCase() + title.slice(1); // First letter uppercase
 187                                                                 if (feature.attributes.name !== undefined) title += ': ';
 188                                                         }
 189                                                         if (feature.attributes.name !== undefined) title += feature.attributes.name;
 190                                                         return title;
 191                                                 }
 192                                         },
 193                                         rules: [
 194                                                 new OpenLayers.Rule({
 195                                                         filter: filter_point_sledrun,
 196                                                         symbolizer: {
 197                                                                 label: "${name}",
 198                                                                 labelYOffset: 14,
 199                                                                 externalGraphic: img_path + '/marker_c_sledrun_${getCondition}nh.png'
 200                                                         }
 201                                                 }),
 202                                                 new OpenLayers.Rule({
 203                                                         elseFilter: true,
 204                                                         symbolizer: {
 205                                                                 labelYOffset: 40
 206                                                         }
 207                                                 })
 208                                         ]
 209                                 }),
 210                         select: new OpenLayers.Style({
 211                                         fillOpacity: 1.
 212                                 }, {
 213                                         context: {
 214                                                 getCondition: get_sledrun_condition,
 215                                         },
 216                                         rules: [
 217                                                 new OpenLayers.Rule({
 218                                                         filter: filter_point_sledrun,
 219                                                         symbolizer: {
 220                                                                 externalGraphic: img_path + '/marker_c_sledrun_${getCondition}nh.png',
 221                                                                 backgroundGraphic: false,
 222                                                                 graphicXOffset: -6,
 223                                                                 graphicYOffset: -6
 224                                                         }
 225                                                 }),
 226                                                 new OpenLayers.Rule({
 227                                                         elseFilter: true
 228                                                 })
 229                                         ]
 230                                 })
 231                 }),
 232                 rendererOptions: {yOrdering: true}
 233         });
 234
 235
 236         // map itself
 237         // ----------
 238         var lon = json_js.properties.lon;
 239         var lat = json_js.properties.lat;
 240         var zoom = json_js.properties.zoom;
 241         var width = json_js.properties.width;
 242         var height = json_js.properties.height;
 243         if (zoom === undefined) zoom = 10; // default zoom
 244         if (width === undefined) width = '100%'; // default width
 245         if (height === undefined) height = 450;  // default: 450 pixel
 246         jq_map.width(width);
 247         jq_map.height(height);
 248         var map = new OpenLayers.Map(jq_map.context, {
 249                 projection: EPSG3857,
 250                 displayProjection: EPSG4326,
 251                 units: "m",
 252                 theme: null,
 253                 layers: [layer_map, layer_path, layer_point],
 254                 center: new OpenLayers.LonLat(lon, lat).transform(EPSG4326, EPSG3857),
 255                 zoom: zoom
 256         });
 257
 258
 259         // add features
 260         // if this would be done before the layer is added to the map, the features are not added
 261         layer_path.addFeatures(features_path);
 262         layer_point.addFeatures(features_point);
 263
 264         // disable mouse wheel zoom
 265         var navigation_control = map.getControlsByClass('OpenLayers.Control.Navigation')[0];
 266         navigation_control.disableZoomWheel();
 267
 268         // layer switcher
 269         // map.addControl(new OpenLayers.Control.LayerSwitcher());
 270
 271         // print sledrun name when mouse moves over it
 272         map.addControl(new OpenLayers.Control.SelectFeature(layer_point, {
 273                 hover: true,
 274                 highlightOnly: true,
 275                 autoActivate: true,
 276                 renderIntent: "highlight"
 277         }));
 278
 279         // show popup when user clicks on a sledrun icon
 280         map.addControl(new OpenLayers.Control.SelectFeature(layer_point, {
 281                 autoActivate: true,
 282                 toggle: true,
 283                 onSelect: function(feature) {
 284                         var attr = feature.attributes;
 285                         var popup_div = createElement('div');
 286
 287                         // name
 288                         if (attr.name !== undefined && (attr.wiki !== undefined || attr.thumb_url !== undefined)) {
 289                                 var h2 = appendElement(popup_div, 'h2');
 290                                 if (attr.wiki === undefined) h2.text(attr.name);
 291                                 else appendElement(h2, 'a', {href: attr.wiki}).text(attr.name);
 292                         }
 293
 294                         // sledrun information
 295                         if (attr.type == 'sledrun') {
 296                                 var p = appendElement(popup_div, 'p').text('Rodelbahnzustand').append(createElement('br'));
 297                                 if (attr.condition !== undefined) {
 298                                         var condition_text = {1: 'Sehr gut', 2: 'Gut', 3: 'Mittelmäßig', 4: 'Schlecht', 5: 'Geht nicht'};
 299                                         var year_month_day = attr.date_report.split('-');
 300                                         p.append(createElement('a', {href: attr.wiki + '#Eintr.C3.A4ge'}).text(condition_text[attr.condition]), ' ');
 301                                         p.append(createElement('small').text(year_month_day[2] + '.' + year_month_day[1] + '.'), ' ');
 302                                         p.append(createElement('em').append(createElement('a', {href: attr.wiki + '#Eintragen'}).text('Neu')));
 303                                 } else {
 304                                         p.append(createElement('em').append(createElement('a', {href: attr.wiki + '#Eintragen'}).text('Bitte eintragen')));
 305                                 }
 306                         }
 307
 308                         // wiki link
 309                         if (attr.wiki !== undefined) {
 310                                 var a = appendElement(appendElement(popup_div, 'p'), 'a', {href: attr.wiki});
 311                                 var detail_text = 'Details';
 312                                 if (attr.type == 'sledrun') detail_text += ' zur Rodelbahn';
 313                                 if (attr.type == 'gasthaus') detail_text += ' zum Gasthaus';
 314                                 if (attr.thumb_url === undefined) a.text(detail_text);
 315                                 else a.append(createElement('img', {src: attr.thumb_url, alt: detail_text, title: detail_text}));
 316                         }
 317
 318                         // no popup if we don't have anything to say
 319                         if (popup_div.children().length == 0) return;
 320
 321                         // Open popup
 322                         var selectFeatureControl = this;
 323                         var popup = new OpenLayers.Popup.WrInfo('sledruninfopopup_' + attr.wiki,
 324                         feature.geometry.getBounds().getCenterLonLat(),
 325                         null,
 326                         popup_div.html(),
 327                         null, true, function(event) {
 328                                 // onPopupClose
 329                                 selectFeatureControl.unselectAll();
 330                         });
 331                         feature.popup = popup;
 332                         map.addPopup(popup);
 333                 },
 334                 onUnselect: function(feature) {
 335                         if (feature.popup === null) return;
 336
 337                         // Close popup
 338                         map.removePopup(feature.popup);
 339                         feature.popup.destroy();
 340                         feature.popup = null;
 341                 }
 342         }));
 343 }
 344
 345
 346 function init_wrmaps() {
 347         var jq_maps = $('.wrmap'); // all wrmap <div> elements
 348         jq_maps.each(init_wrmap);
 349 }
 350
 351
 352 $(document).ready(init_wrmaps);
 353