More work on draggable markers
[rails.git] / app / assets / javascripts / routing.js.erb
index 45ae08d81cd7dbe8accf86f0d90397ff386252e0..81cd3e7a18f62250ac5abdfd5bf21c1570cccf44 100644 (file)
@@ -57,9 +57,31 @@ OSM.Routing=function(map,name,jqSearch) {
        r.route_to=null;                //  |
        r.awaitingGeocode=false;// true if the user has requested a route, but we're waiting on a geocode result
        r.viaPoints=[];                 // not yet used
+
        r.polyline=null;                // Leaflet polyline object
+       r.popup=null;                   // Leaflet popup object
+       r.marker_from=null;             // Leaflet from marker
+       r.marker_to=null;               // Leaflet to marker
+
        r.chosenEngine=null;    // currently selected routing engine
 
+       var icon_from = L.icon({
+               iconUrl: <%= asset_path('marker-green.png').to_json %>,
+               iconSize: [25, 41],
+               iconAnchor: [12, 41],
+               popupAnchor: [1, -34],
+               shadowUrl: <%= asset_path('images/marker-shadow.png').to_json %>,
+               shadowSize: [41, 41]
+       });
+       var icon_to = L.icon({
+               iconUrl: <%= asset_path('marker-red.png').to_json %>,
+               iconSize: [25, 41],
+               iconAnchor: [12, 41],
+               popupAnchor: [1, -34],
+               shadowUrl: <%= asset_path('images/marker-shadow.png').to_json %>,
+               shadowSize: [41, 41]
+       });
+
        // Geocoding
 
        r.geocode=function(id,event) { var _this=this;
@@ -82,7 +104,7 @@ OSM.Routing=function(map,name,jqSearch) {
                field.value=json[0].display_name;
                var lat=Number(json[0].lat), lon=Number(json[0].lon);
                r[field.id]=[lat,lon];
-               // ** update markers
+               r.updateMarkers(field.id);
                if (r.awaitingGeocode) {
                        r.awaitingGeocode=false;
                        r.requestRoute();
@@ -92,7 +114,31 @@ OSM.Routing=function(map,name,jqSearch) {
        // Drag and drop markers
        
        r.handleDrop=function(e) {
-               console.log(r.map.mouseEventToLatLng(e.originalEvent))
+               var id=e.originalEvent.dataTransfer.getData('id');
+               var ll=r.map.mouseEventToLatLng(e.originalEvent);
+               // *** ^^^ this is slightly off - we need to work out the latLng of the tip
+               r.createMarker(ll,id);
+               // update to/from field
+       };
+       r.createMarker=function(latlng,id) {
+               if (r[id]) r.map.removeLayer(r[id]);
+               r[id]=L.marker(latlng, {
+                       icon: id=='marker_from' ? icon_from : icon_to,
+                       draggable: true,
+                       name: id
+               }).addTo(r.map);
+               r[id].on('drag',r.markerDragged);
+               r[id].on('dragend',r.markerDragged);
+       };
+       r.updateMarkers=function(id) {
+       };
+       r.markerDragged=function(e) {
+               // marker has been dragged
+               if (e.type=='drag' && !r.chosenEngine.draggable) return;
+               // *** also return if e.type=='drag' and not long enough since last request returned
+               // *** but always do if e.type=='dragend'
+               console.log(e.target.options.name);
+               console.log(e.target.getLatLng());
        };
        
        // Route-fetching UI
@@ -149,15 +195,17 @@ OSM.Routing=function(map,name,jqSearch) {
                }
        };
        r.clickTurn=function(num,latlng) {
-               L.popup().setLatLng(latlng).setContent("<p>"+(num+1)+"</p>").openOn(r.map);
+               r.popup=L.popup().setLatLng(latlng).setContent("<p>"+(num+1)+"</p>").openOn(r.map);
        };
 
-
        // Close all routing UI
        
        r.close=function() {
                $("#content").addClass("overlay-sidebar");
-               if (r.polyline) map.removeLayer(r.polyline);
+               var remove=[r.polyline,r.popup,r.marker_from,r.marker_to];
+               for (var i=0; i<remove.length; i++) {
+                       if (remove[i]) map.removeLayer(remove[i]);
+               }
        };
 
        // Routing engine handling