]> ToastFreeware Gitweb - philipp/winterrodeln/mediawiki_extensions/wrmap.git/blobdiff - wrmap.js
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[philipp/winterrodeln/mediawiki_extensions/wrmap.git] / wrmap.js
index 7d279523a832114dbb0baa9110f6d20d0c94fd7b..bab462b3d9d2170d79879e0d462b6a25e4767296 100644 (file)
--- a/wrmap.js
+++ b/wrmap.js
@@ -1,24 +1,33 @@
 "use strict";
 
 function init_wrmap(i, jq_map) {
+       // define constants
+       var EPSG4326 = new OpenLayers.Projection("EPSG:4326"); // lon/lat
+       var EPSG3857 = new OpenLayers.Projection("EPSG:3857"); // google
+
+       // extract geojson from map element and clear map element's content
        jq_map = $(jq_map);
        OpenLayers.ImgPath = jq_map.attr('data-img-path'); // e.g. "/mediawiki/extensions/wrmap/openlayers/img/"
-       var jq_sledruns = jq_map.children();
-       jq_sledruns.detach();
-       
-       // Introduce EPSG:3857 as an alias of the built in EPSG:900913 projection (both are the "Google/OSM" projections)
-       var EPSG4326 = new OpenLayers.Projection("EPSG:4326"); // lon/lat 
-       var EPSG3857 = new OpenLayers.Projection("EPSG:3857"); // google
+       var json_string = jq_map.text();
+       jq_map.empty(); // once parsed, remove geojson string from the map element.
+       var format_json = new OpenLayers.Format.JSON();
+       var json_js = format_json.read(json_string);
+       var format_geojson = new OpenLayers.Format.GeoJSON();
+       var features_all = format_geojson.read(json_js);
+
+       // extract, tranform and split features to layers
+       var features_path = new Array();
+       var features_point = new Array();
+       for (var i = 0; i != features_all.length; ++i) {
+               var feature = features_all[i];
+               feature.geometry.transform(EPSG4326, EPSG3857);
+               if (feature.geometry instanceof OpenLayers.Geometry.Point) features_point.push(feature);
+               else features_path.push(feature);
+       }
 
-       // Create the map
-       var map = new OpenLayers.Map(jq_map.context, {
-               projection: EPSG3857,
-               displayProjection: EPSG4326,
-               units: "m",
-               theme: null
-       });
 
-       // Google Layer
+       // background layer
+       // ----------------
        var layer_map = new OpenLayers.Layer.Google("Google Physical", {
                type: google.maps.MapTypeId.TERRAIN
        });
@@ -31,53 +40,167 @@ function init_wrmap(i, jq_map) {
        //     type: "Road",
        //     key: "AgPH3SlIXAwajrJKf0FORQyhTqsP8KIlvtN6RKfvxe6fOB6q6-HFmg8EOFm7LSOA"});
        
-       // Sledrun layer
-       var layer_sledruns = new OpenLayers.Layer.Vector("Rodelbahnen", {
+       // // Alternative: Dummy base layer
+       // var layer_map = new OpenLayers.Layer.Vector("Base Layer", {
+       //     isBaseLayer: true});
+
+       
+       // path layer
+       // ----------
+       var layer_path = new OpenLayers.Layer.Vector("Path", {
+               styleMap: new OpenLayers.StyleMap(new OpenLayers.Style({
+                               strokeColor: '${getStrokeColor}',
+                               strokeWidth: '${getStrokeWidth}'
+                       }, {
+                               context: {
+                                       getStrokeColor: function(feature) {
+                                               if (feature.attributes.strokeColor !== undefined) return feature.attributes.strokeColor;
+                                               if (feature.attributes.type == 'rodelbahn') return '#014e9a';
+                                               if (feature.attributes.type == 'gehweg') return '#e98401';
+                                               if (feature.attributes.type == 'alternative') return '#7f7fff';
+                                               if (feature.attributes.type == 'lift') return '#000000';
+                                               if (feature.attributes.type == 'anfahrt') return '#e1e100';
+                                               return '#ee9900';
+                                       },
+                                       getStrokeWidth: function(feature) {
+                                               if (feature.attributes.strokeWidth !== undefined) return feature.attributes.strokeWidth;
+                                               if (feature.attributes.type == 'lift' || feature.attributes.type == 'anfahrt') return 3;
+                                               return 6;
+                                       }
+                               }
+                       }))
+       });
+
+       
+       // point layer
+       // -----------
+       var filter_point_sledrun = new OpenLayers.Filter.Comparison({
+               type: OpenLayers.Filter.Comparison.EQUAL_TO,
+               property: 'type',
+               value: 'sledrun'
+       });
+
+       var layer_point = new OpenLayers.Layer.Vector("Point", {
                styleMap: new OpenLayers.StyleMap({
-                       "default": new OpenLayers.Style({
-                               externalGraphic: "/vorlagen/bahnzustand${condition}_0.png",
-                               graphicWidth: 17,
-                               graphicHeight: 17,
-                               graphicXOffset: -8,
-                               graphicYOffset: -8,
-                               graphicZIndex: 12,
-                               backgroundGraphic: "/vorlagen/gmap_rodelbahn_c_s.png",
-                               backgroundWidth: 23,
-                               backgroundHeight: 23,
-                               backgroundXOffset: -8,
-                               backgroundYOffset: -8,
-                               backgroundGraphicZIndex: 11,
-                               title: "${label}"
-                       }),
-                       "highlight": new OpenLayers.Style({
-                               label: "${label}",
-                               labelOutlineColor: "white",
-                               labelYOffset: 12,
-                               fontWeight: "bold"
-                       })
+                       'default': new OpenLayers.Style({
+                                       graphicZIndex: 12,
+                                       backgroundGraphicZIndex: 11,
+                               }, {
+                                       context: {
+                                               // the following context functions should only be available in the rule that uses them,
+                                               // but the rule dependent contexts are ignored by OpenLayers (I think that's a bug)
+                                               getCondition: function(feature) {
+                                                       if (feature.condition === undefined) return 0;
+                                                       return feature.condition;
+                                               },
+                                               getSymbol: function(feature) {
+                                                       var name = feature.attributes.type;
+                                                       return name;
+                                               }
+                                       },
+                                       rules: [
+                                               new OpenLayers.Rule({
+                                                       filter: filter_point_sledrun,
+                                                       symbolizer: {
+                                                               externalGraphic: '/vorlagen/bahnzustand${getCondition}_0.png',
+                                                               graphicWidth: 17,
+                                                               graphicHeight: 17,
+                                                               graphicXOffset: -8,
+                                                               graphicYOffset: -8,
+                                                               backgroundGraphic: "/vorlagen/gmap_rodelbahn_c_s.png",
+                                                               backgroundWidth: 23,
+                                                               backgroundHeight: 23,
+                                                               backgroundXOffset: -8,
+                                                               backgroundYOffset: -8,
+                                                       }
+                                               }),
+                                               new OpenLayers.Rule({
+                                                       elseFilter: true,
+                                                       symbolizer: {
+                                                               externalGraphic: '/vorlagen/gmap_${getSymbol}.png',
+                                                               graphicWidth: 20,
+                                                               graphicHeight: 34,
+                                                               graphicXOffset: -10,
+                                                               graphicYOffset: -33,
+                                                       }
+                                               })
+                                       ]
+                               }),
+                       highlight: new OpenLayers.Style({
+                                       label: "${getTitle}",
+                                       labelOutlineColor: "white",
+                                       fontWeight: "bold"
+                               }, {
+                                       context: {
+                                               getTitle: function(feature) {
+                                                       var title = '';
+                                                       if (feature.attributes.type != 'point') {
+                                                               title = feature.attributes.type;
+                                                               title = title.charAt(0).toUpperCase() + title.slice(1); // First letter uppercase
+                                                               if (feature.attributes.name !== undefined) title += ': ';
+                                                       }
+                                                       if (feature.attributes.name !== undefined) title += feature.attributes.name;
+                                                       return title;
+                                               }
+                                       },
+                                       rules: [
+                                               new OpenLayers.Rule({
+                                                       filter: filter_point_sledrun,
+                                                       symbolizer: {
+                                                               label: "${name}",
+                                                               labelYOffset: 14
+                                                       }
+                                               }),
+                                               new OpenLayers.Rule({
+                                                       elseFilter: true,
+                                                       symbolizer: {
+                                                               labelYOffset: 40
+                                                       }
+                                               })
+                                       ]
+                               }) 
                }),
                rendererOptions: {yOrdering: true}
        });
-       jq_sledruns.each(function(j, jq_sledrun) {
-               jq_sledrun = $(jq_sledrun);
-               var lon = parseFloat(jq_sledrun.attr('data-lon'));
-               var lat = parseFloat(jq_sledrun.attr('data-lat'));
-               var point = new OpenLayers.Geometry.Point(lon, lat).transform(EPSG4326, EPSG3857);
-               layer_sledruns.addFeatures([new OpenLayers.Feature.Vector(point, {
-                       label: jq_sledrun.attr('data-title'),
-                       url: jq_sledrun.attr('data-url'),
-                       has_report: jq_sledrun.attr('data-date_report') !== undefined,
-                       date_report: jq_sledrun.attr('data-date_report') === undefined ? null : jq_sledrun.attr('data-date_report'),
-                       condition: jq_sledrun.attr('data-condition') === undefined ? '0' : jq_sledrun.attr('data-condition')
-               })]);
+
+
+       // map itself
+       // ----------
+       var lon = json_js.properties.lon;
+       var lat = json_js.properties.lat;
+       var zoom = json_js.properties.zoom;
+       var width = json_js.properties.width;
+       var height = json_js.properties.height;
+       if (zoom === undefined) zoom = 10; // default zoom
+       if (width === undefined) width = '100%'; // default width
+       if (height === undefined) height = 450;  // default: 450 pixel
+       jq_map.width(width);
+       jq_map.height(height);
+       var map = new OpenLayers.Map(jq_map.context, {
+               projection: EPSG3857,
+               displayProjection: EPSG4326,
+               units: "m",
+               theme: null,
+               layers: [layer_map, layer_path, layer_point],
+               center: new OpenLayers.LonLat(lon, lat).transform(EPSG4326, EPSG3857),
+               zoom: zoom
        });
+       
+
+       // add features
+       // if this would be done before the layer is added to the map, the features are not added
+       layer_path.addFeatures(features_path); 
+       layer_point.addFeatures(features_point); 
 
        // disable mouse wheel zoom
        var navigation_control = map.getControlsByClass('OpenLayers.Control.Navigation')[0];
        navigation_control.disableZoomWheel();
 
+       // layer switcher
+       // map.addControl(new OpenLayers.Control.LayerSwitcher());
+
        // print sledrun name when mouse moves over it
-       map.addControl(new OpenLayers.Control.SelectFeature(layer_sledruns, {
+       map.addControl(new OpenLayers.Control.SelectFeature(layer_point, {
                hover: true,
                highlightOnly: true,
                autoActivate: true,
@@ -85,27 +208,34 @@ function init_wrmap(i, jq_map) {
        }));
 
        // show popup when user clicks on a sledrun icon
-       map.addControl(new OpenLayers.Control.SelectFeature(layer_sledruns, {
+       map.addControl(new OpenLayers.Control.SelectFeature(layer_point, {
                autoActivate: true,
                toggle: true,
                onSelect: function(feature) {
+                       var popup_text = '';
+                       if (feature.attributes.type == 'sledrun') {
+                               popup_text += "<h2>" + feature.attributes.name + '</h2>\n' +
+                               '<ul>\n' +
+                               '<li><a href="' + feature.attributes.wiki + '">Details zur Rodelbahn</a></li>\n' + 
+                               '<li>Rodelbahnzustand<br/>';
+                               if (feature.attributes.condition !== undefined) {
+                                       var condition_text = {1: 'Sehr gut', 2: 'Gut', 3: 'Mittelm&auml;&szlig;ig', 4: 'Schlecht', 5: 'Geht nicht'};
+                                       var year_month_day = feature.attributes.date_report.split('-');
+                                       popup_text += '<a href="' + feature.attributes.wiki + '#Eintr.C3.A4ge">' + condition_text[feature.attributes.condition] + '</a> ' + 
+                                       '<small>' + year_month_day[2] + '.' + year_month_day[1] + '.</small> ' +
+                                       '<em><a href="' + feature.attributes.wiki + '#Eintragen">Neu</a></em>';
+                               } else {
+                                       popup_text += '<em><a href="' + feature.attributes.wiki + '#Eintragen">Bitte eintragen</a></em>';
+                               }
+                               popup_text += '</li>\n</ul>\n';
+                       } else if (feature.attributes.wiki !== undefined) {
+                               if (feature.attributes.name != undefined) popup_text += '<h2>' + feature.attributes.name + '</h2>\n';
+                               popup_text += '<p><a href="' + feature.attributes.wiki + '">Details</a></p>\n';
+                       } else return;
+
                        // Open popup
-                       var popup_text = "<h2>" + feature.attributes['label'] + '</h2>\n' +
-                       '<ul>\n' +
-                       '<li><a href="' + feature.attributes['url'] + '">Details zur Rodelbahn</a></li>\n' + 
-                       '<li>Rodelbahnzustand<br/>';
-                       if (feature.attributes['has_report']) {
-                               var condition_text = {1: 'Sehr gut', 2: 'Gut', 3: 'Mittelm&auml;&szlig;ig', 4: 'Schlecht', 5: 'Geht nicht'};
-                               var year_month_day = feature.attributes['date_report'].split('-');
-                               popup_text += '<a href="' + feature.attributes['url'] + '#Eintr.C3.A4ge">' + condition_text[feature.attributes['condition']] + '</a> ' + 
-                               '<small>' + year_month_day[2] + '.' + year_month_day[1] + '.</small> ' +
-                               '<em><a href="' + feature.attributes['url'] + '#Eintragen">Neu</a></em>';
-                       } else {
-                               popup_text += '<em><a href="' + feature.attributes['url'] + '#Eintragen">Bitte eintragen</a></em>';
-                       }
-                       popup_text += '</li>\n</ul>\n';
                        var selectFeatureControl = this;
-                       var popup = new OpenLayers.Popup.FramedCloud('sledruninfopopup_' + feature.attributes['label']
+                       var popup = new OpenLayers.Popup.FramedCloud('sledruninfopopup_' + feature.attributes.wiki
                        feature.geometry.getBounds().getCenterLonLat(),
                        null,
                        popup_text,
@@ -117,21 +247,14 @@ function init_wrmap(i, jq_map) {
                        map.addPopup(popup);
                },
                onUnselect: function(feature) {
+                       if (feature.popup === null) return;
+
                        // Close popup
                        map.removePopup(feature.popup);
                        feature.popup.destroy();
                        feature.popup = null;
                }
        }));
-
-
-       // Center map
-       map.addLayers([layer_map, layer_sledruns]);
-       var lon = parseFloat(jq_map.attr('data-center-lon'));
-       var lat = parseFloat(jq_map.attr('data-center-lat'));
-       var zoom = parseInt(jq_map.attr('data-zoom'));
-       map.setCenter(new OpenLayers.LonLat(lon, lat).transform(EPSG4326, map.getProjectionObject()), zoom);
-
 }