0fdedef60d3124911567cab1e25da5d80e9d3c3f
[philipp/winterrodeln/mediawiki_extensions/wrmap.git] / 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
78         // // Alternative: Base map
79         // // see: http://www.basemap.at
80         
81         // // Alternative: OpenTopoMap
82         // // see: https://opentopomap.org/about
83
84         // // Alternative: Dummy base layer
85         // var layer_map = new OpenLayers.Layer.Vector("Base Layer", {
86         //     isBaseLayer: true});
87
88         
89         // path layer
90         // ----------
91         var layer_path = new OpenLayers.Layer.Vector("Path", {
92                 styleMap: new OpenLayers.StyleMap(new OpenLayers.Style({
93                                 strokeColor: '${getStrokeColor}',
94                                 strokeWidth: '${getStrokeWidth}'
95                         }, {
96                                 context: {
97                                         getStrokeColor: function(feature) {
98                                                 if (feature.attributes.strokeColor !== undefined) return feature.attributes.strokeColor;
99                                                 if (feature.attributes.type == 'rodelbahn') return '#014e9a';
100                                                 if (feature.attributes.type == 'gehweg') return '#e98401';
101                                                 if (feature.attributes.type == 'alternative') return '#7f7fff';
102                                                 if (feature.attributes.type == 'lift') return '#000000';
103                                                 if (feature.attributes.type == 'anfahrt') return '#e1e100';
104                                                 return '#e7525b';
105                                         },
106                                         getStrokeWidth: function(feature) {
107                                                 if (feature.attributes.strokeWidth !== undefined) return feature.attributes.strokeWidth;
108                                                 if (feature.attributes.type == 'lift' || feature.attributes.type == 'anfahrt') return 3;
109                                                 return 6;
110                                         }
111                                 }
112                         }))
113         });
114
115         
116         // point layer
117         // -----------
118         var filter_point_sledrun = new OpenLayers.Filter.Comparison({
119                 type: OpenLayers.Filter.Comparison.EQUAL_TO,
120                 property: 'type',
121                 value: 'sledrun'
122         });
123
124         // Returns 0 to 5 for features that represent sledruns as their condition
125         var get_sledrun_condition = function(feature) {
126                 if (feature.attributes.condition === undefined) return 0;
127                 return feature.attributes.condition;
128         }
129
130
131         var layer_point = new OpenLayers.Layer.Vector("Point", {
132                 styleMap: new OpenLayers.StyleMap({
133                         'default': new OpenLayers.Style({
134                                         graphicZIndex: 12,
135                                         backgroundGraphicZIndex: 11,
136                                 }, {
137                                         context: {
138                                                 // the following context functions should only be available in the rule that uses them,
139                                                 // but the rule dependent contexts are ignored by OpenLayers (I think that's a bug)
140                                                 getCondition: get_sledrun_condition,
141                                                 getSymbol: function(feature) {
142                                                         var name = feature.attributes.type;
143                                                         return name;
144                                                 }
145                                         },
146                                         rules: [
147                                                 new OpenLayers.Rule({
148                                                         filter: filter_point_sledrun,
149                                                         symbolizer: {
150                                                                 externalGraphic: img_path + '/marker_c_sledrun_${getCondition}nn.png',
151                                                                 graphicWidth: 17,
152                                                                 graphicHeight: 17,
153                                                                 graphicXOffset: -8,
154                                                                 graphicYOffset: -8,
155                                                                 backgroundGraphic: img_path + '/marker_c_shadow.png',
156                                                                 backgroundWidth: 23,
157                                                                 backgroundHeight: 23,
158                                                                 backgroundXOffset: -8,
159                                                                 backgroundYOffset: -8,
160                                                         }
161                                                 }),
162                                                 new OpenLayers.Rule({
163                                                         elseFilter: true,
164                                                         symbolizer: {
165                                                                 externalGraphic: img_path + '/marker_p_${getSymbol}.png',
166                                                                 graphicWidth: 20,
167                                                                 graphicHeight: 34,
168                                                                 graphicXOffset: -10,
169                                                                 graphicYOffset: -33,
170                                                         }
171                                                 })
172                                         ]
173                                 }),
174                         highlight: new OpenLayers.Style({
175                                         label: "${getTitle}",
176                                         labelOutlineColor: "white",
177                                         fontWeight: "bold"
178                                 }, {
179                                         context: {
180                                                 getCondition: get_sledrun_condition,
181                                                 getTitle: function(feature) {
182                                                         var title = '';
183                                                         if (feature.attributes.type != 'point') {
184                                                                 title = feature.attributes.type;
185                                                                 title = title.charAt(0).toUpperCase() + title.slice(1); // First letter uppercase
186                                                                 if (feature.attributes.name !== undefined) title += ': ';
187                                                         }
188                                                         if (feature.attributes.name !== undefined) title += feature.attributes.name;
189                                                         return title;
190                                                 }
191                                         },
192                                         rules: [
193                                                 new OpenLayers.Rule({
194                                                         filter: filter_point_sledrun,
195                                                         symbolizer: {
196                                                                 label: "${name}",
197                                                                 labelYOffset: 14,
198                                                                 externalGraphic: img_path + '/marker_c_sledrun_${getCondition}nh.png'
199                                                         }
200                                                 }),
201                                                 new OpenLayers.Rule({
202                                                         elseFilter: true,
203                                                         symbolizer: {
204                                                                 labelYOffset: 40
205                                                         }
206                                                 })
207                                         ]
208                                 }),
209                         select: new OpenLayers.Style({
210                                         fillOpacity: 1.
211                                 }, {
212                                         context: {
213                                                 getCondition: get_sledrun_condition,
214                                         },
215                                         rules: [
216                                                 new OpenLayers.Rule({
217                                                         filter: filter_point_sledrun,
218                                                         symbolizer: {
219                                                                 externalGraphic: img_path + '/marker_c_sledrun_${getCondition}nh.png',
220                                                                 backgroundGraphic: false,
221                                                                 graphicXOffset: -6,
222                                                                 graphicYOffset: -6
223                                                         }
224                                                 }),
225                                                 new OpenLayers.Rule({
226                                                         elseFilter: true
227                                                 })
228                                         ]
229                                 })
230                 }),
231                 rendererOptions: {yOrdering: true}
232         });
233
234
235         // map itself
236         // ----------
237         var lon = json_js.properties.lon;
238         var lat = json_js.properties.lat;
239         var zoom = json_js.properties.zoom;
240         var width = json_js.properties.width;
241         var height = json_js.properties.height;
242         if (zoom === undefined) zoom = 10; // default zoom
243         if (width === undefined) width = '100%'; // default width
244         if (height === undefined) height = 450;  // default: 450 pixel
245         jq_map.width(width);
246         jq_map.height(height);
247         var map = new OpenLayers.Map(jq_map.context, {
248                 projection: EPSG3857,
249                 displayProjection: EPSG4326,
250                 units: "m",
251                 theme: null,
252                 layers: [layer_map, layer_path, layer_point],
253                 center: new OpenLayers.LonLat(lon, lat).transform(EPSG4326, EPSG3857),
254                 zoom: zoom
255         });
256         
257
258         // add features
259         // if this would be done before the layer is added to the map, the features are not added
260         layer_path.addFeatures(features_path); 
261         layer_point.addFeatures(features_point); 
262
263         // disable mouse wheel zoom
264         var navigation_control = map.getControlsByClass('OpenLayers.Control.Navigation')[0];
265         navigation_control.disableZoomWheel();
266
267         // layer switcher
268         // map.addControl(new OpenLayers.Control.LayerSwitcher());
269
270         // print sledrun name when mouse moves over it
271         map.addControl(new OpenLayers.Control.SelectFeature(layer_point, {
272                 hover: true,
273                 highlightOnly: true,
274                 autoActivate: true,
275                 renderIntent: "highlight"
276         }));
277
278         // show popup when user clicks on a sledrun icon
279         map.addControl(new OpenLayers.Control.SelectFeature(layer_point, {
280                 autoActivate: true,
281                 toggle: true,
282                 onSelect: function(feature) {
283                         var attr = feature.attributes;
284                         var popup_div = createElement('div');
285
286                         // name
287                         if (attr.name !== undefined && (attr.wiki !== undefined || attr.thumb_url !== undefined)) {
288                                 var h2 = appendElement(popup_div, 'h2');
289                                 if (attr.wiki === undefined) h2.text(attr.name);
290                                 else appendElement(h2, 'a', {href: attr.wiki}).text(attr.name);
291                         }
292
293                         // sledrun information
294                         if (attr.type == 'sledrun') {
295                                 var p = appendElement(popup_div, 'p').text('Rodelbahnzustand').append(createElement('br'));
296                                 if (attr.condition !== undefined) {
297                                         var condition_text = {1: 'Sehr gut', 2: 'Gut', 3: 'Mittelmäßig', 4: 'Schlecht', 5: 'Geht nicht'};
298                                         var year_month_day = attr.date_report.split('-');
299                                         p.append(createElement('a', {href: attr.wiki + '#Eintr.C3.A4ge'}).text(condition_text[attr.condition]), ' ');
300                                         p.append(createElement('small').text(year_month_day[2] + '.' + year_month_day[1] + '.'), ' ');
301                                         p.append(createElement('em').append(createElement('a', {href: attr.wiki + '#Eintragen'}).text('Neu')));
302                                 } else {
303                                         p.append(createElement('em').append(createElement('a', {href: attr.wiki + '#Eintragen'}).text('Bitte eintragen')));
304                                 }
305                         }
306
307                         // wiki link
308                         if (attr.wiki !== undefined) {
309                                 var a = appendElement(appendElement(popup_div, 'p'), 'a', {href: attr.wiki});
310                                 var detail_text = 'Details';
311                                 if (attr.type == 'sledrun') detail_text += ' zur Rodelbahn';
312                                 if (attr.type == 'gasthaus') detail_text += ' zum Gasthaus';
313                                 if (attr.thumb_url === undefined) a.text(detail_text);
314                                 else a.append(createElement('img', {src: attr.thumb_url, alt: detail_text, title: detail_text}));
315                         }
316
317                         // no popup if we don't have anything to say
318                         if (popup_div.children().length == 0) return;
319
320                         // Open popup
321                         var selectFeatureControl = this;
322                         var popup = new OpenLayers.Popup.WrInfo('sledruninfopopup_' + attr.wiki,
323                         feature.geometry.getBounds().getCenterLonLat(),
324                         null,
325                         popup_div.html(),
326                         null, true, function(event) {
327                                 // onPopupClose
328                                 selectFeatureControl.unselectAll();
329                         });
330                         feature.popup = popup;
331                         map.addPopup(popup);
332                 },
333                 onUnselect: function(feature) {
334                         if (feature.popup === null) return;
335
336                         // Close popup
337                         map.removePopup(feature.popup);
338                         feature.popup.destroy();
339                         feature.popup = null;
340                 }
341         }));
342 }
343
344
345 function init_wrmaps() {
346         var jq_maps = $('.wrmap'); // all wrmap <div> elements
347         jq_maps.each(init_wrmap);
348 }
349
350
351 $(document).ready(init_wrmaps);
352