From 1b7c528d8491bc362eabe2ff49f7cff60d76a2e4 Mon Sep 17 00:00:00 2001
From: Jacek Kowalski <Jacek@jacekk.info>
Date: Wed, 13 Mar 2019 00:03:41 +0000
Subject: [PATCH] Allow switching between tram and bus stop

---
 map.js |  236 ++++++++++++++++++++++++++---------------------------------
 1 files changed, 104 insertions(+), 132 deletions(-)

diff --git a/map.js b/map.js
index d968325..089a952 100644
--- a/map.js
+++ b/map.js
@@ -26,14 +26,41 @@
 var vehicles_info = {};
 
 var stops_xhr = null;
-var stops_buses_source = null;
-var stops_buses_layer = null;
-var stops_trams_source = null;
-var stops_trams_layer = null;
-var stop_points_buses_source = null;
-var stop_points_buses_layer = null;
-var stop_points_trams_source = null;
-var stop_points_trams_layer = null;
+var stops_ignored = ['131'];
+var stops_style = {
+	'sb': new ol.style.Style({
+		image: new ol.style.Circle({
+			fill: new ol.style.Fill({color: '#07F'}),
+			stroke: new ol.style.Stroke({color: '#05B', width: 2}),
+			radius: 3,
+		}),
+	}),
+	'st': new ol.style.Style({
+		image: new ol.style.Circle({
+			fill: new ol.style.Fill({color: '#FA0'}),
+			stroke: new ol.style.Stroke({color: '#B70', width: 2}),
+			radius: 3,
+		}),
+	}),
+	'pb': new ol.style.Style({
+		image: new ol.style.Circle({
+			fill: new ol.style.Fill({color: '#07F'}),
+			stroke: new ol.style.Stroke({color: '#05B', width: 1}),
+			radius: 3,
+		}),
+	}),
+	'pt': new ol.style.Style({
+		image: new ol.style.Circle({
+			fill: new ol.style.Fill({color: '#FA0'}),
+			stroke: new ol.style.Stroke({color: '#B70', width: 1}),
+			radius: 3,
+		}),
+	}),
+};
+var stops_type = ['st', 'sb', 'pt', 'pb'];
+var stops_mapping = {};
+var stops_source = {};
+var stops_layer = {};
 
 var stop_selected_source = null;
 var stop_selected_layer = null;
@@ -192,11 +219,7 @@
 function markStops(stops, type, routeStyle) {
 	stop_selected_source.clear();
 	
-	var style = stops_trams_layer.getStyle();
-	if(type == 'b') {
-		style = stops_buses_layer.getStyle();
-	}
-	style = style.clone();
+	var style = stops_layer['s'+type].getStyle().clone();
 	
 	if(routeStyle) {
 		style.getImage().setRadius(5);
@@ -216,16 +239,7 @@
 			feature = stops[i];
 		} else {
 			prefix = stops[i].substr(0,2);
-			feature = null;
-			if(prefix == 'sb') {
-				feature = stops_buses_source.getFeatureById(stops[i]);
-			} else if(prefix == 'st') {
-				feature = stops_trams_source.getFeatureById(stops[i]);
-			} else if(prefix == 'pb') {
-				feature = stop_points_buses_source.getFeatureById(stops[i]);
-			} else if(prefix == 'pt') {
-				feature = stop_points_trams_source.getFeatureById(stops[i]);
-			}
+			feature = stops_source[prefix].getFeatureById(stops[i]);
 		}
 		if(feature) {
 			stop_selected_source.addFeature(feature);
@@ -354,14 +368,23 @@
 	return buses_xhr;
 }
 
-function updateStopSource(stops, prefix, source) {
+function updateStopSource(stops, prefix) {
+	var source = stops_source[prefix];
+	var mapping = stops_mapping[prefix];
 	for(var i = 0; i < stops.length; i++) {
 		var stop = stops[i];
 		
 		if(stop.category == 'other') continue;
+		if(stops_ignored.indexOf(stop.shortName) >= 0) continue;
 		
 		stop.geometry = getGeometry(stop);
 		var stop_feature = new ol.Feature(stop);
+		
+		if(prefix.startsWith('p')) {
+			mapping[stop.stopPoint] = stop_feature;
+		} else {
+			mapping[stop.shortName] = stop_feature;
+		}
 		
 		stop_feature.setId(prefix + stop.id);
 		
@@ -369,7 +392,7 @@
 	}
 }
 
-function updateStops(base, suffix, source) {
+function updateStops(base, suffix) {
 	return $.get(
 		base + '/geoserviceDispatcher/services/stopinfo/stops'
 			+ '?left=-648000000'
@@ -377,11 +400,11 @@
 			+ '&right=648000000'
 			+ '&top=324000000'
 	).done(function(data) {
-		updateStopSource(data.stops, 's' + suffix, source);
+		updateStopSource(data.stops, 's' + suffix);
 	}).fail(fail_ajax);
 }
 
-function updateStopPoints(base, suffix, source) {
+function updateStopPoints(base, suffix) {
 	return $.get(
 		base + '/geoserviceDispatcher/services/stopinfo/stopPoints'
 			+ '?left=-648000000'
@@ -389,7 +412,7 @@
 			+ '&right=648000000'
 			+ '&top=324000000'
 	).done(function(data) {
-		updateStopSource(data.stopPoints, 'p' + suffix, source);
+		updateStopSource(data.stopPoints, 'p' + suffix);
 	}).fail(fail_ajax);
 }
 
@@ -584,8 +607,23 @@
 		break;
 		case 's':
 			type = lang.type_stop_tram;
+			var second_type = lang.departures_for_buses;
+			var mapping = stops_mapping['sb'];
 			if(feature.getId().startsWith('sb')) {
 				type = lang.type_stop_bus;
+				second_type = lang.departures_for_trams;
+				mapping = stops_mapping['st'];
+			}
+			
+			if(mapping[feature.get('shortName')]) {
+				additional = document.createElement('p');
+				additional.className = 'small';
+				addElementWithText(additional, 'a', second_type).addEventListener(
+					'click',
+					function() {
+						featureClicked(mapping[feature.get('shortName')]);
+					}
+				);
 			}
 			
 			addElementWithText(thead, 'th', lang.header_line);
@@ -607,15 +645,8 @@
 			addElementWithText(additional, 'a', lang.departures_for_stop).addEventListener(
 				'click',
 				function() {
-					var stops_source = stops_trams_source;
-					if(feature.getId().startsWith('pb')) {
-						stops_source = stops_buses_source;
-					}
-					featureClicked(stops_source.forEachFeature(function(stop_feature) {
-						if(stop_feature.get('shortName') == feature.get('shortName') && stop_feature.getId().substr(1,1) == feature.getId().substr(1,1)) {
-							return stop_feature;
-						}
-					}));
+					var mapping = stops_mapping['s' + feature.getId().substr(1,1)];
+					featureClicked(mapping[feature.get('shortName')]);
 				}
 			);
 			
@@ -736,18 +767,11 @@
 	
 	var feature = features[0];
 	if(!feature) {
-		if(stops_buses_layer.getVisible()) {
-			feature = returnClosest(point, feature, stops_buses_source.getClosestFeatureToCoordinate(point));
-		}
-		if(stops_trams_layer.getVisible()) {
-			feature = returnClosest(point, feature, stops_trams_source.getClosestFeatureToCoordinate(point));
-		}
-		if(stop_points_buses_layer.getVisible()) {
-			feature = returnClosest(point, feature, stop_points_buses_source.getClosestFeatureToCoordinate(point));
-		}
-		if(stop_points_trams_layer.getVisible()) {
-			feature = returnClosest(point, feature, stop_points_trams_source.getClosestFeatureToCoordinate(point));
-		}
+		stops_type.forEach(function(type) {
+			if(stops_layer[type].getVisible()) {
+				feature = returnClosest(point, feature, stops_source[type].getClosestFeatureToCoordinate(point));
+			}
+		});
 		if(trams_layer.getVisible()) {
 			feature = returnClosest(point, feature, trams_source.getClosestFeatureToCoordinate(point));
 		}
@@ -823,15 +847,7 @@
 			feature = trams_source.getFeatureById(vehicleId);
 		}
 	} else if(stopId) {
-		if(stopId.startsWith('st')) {
-			feature = stops_trams_source.getFeatureById(stopId);
-		} else if(stopId.startsWith('sb')) {
-			feature = stops_buses_source.getFeatureById(stopId);
-		} else if(stopId.startsWith('pt')) {
-			feature = stop_points_trams_source.getFeatureById(stopId);
-		} else if(stopId.startsWith('pb')) {
-			feature = stop_points_buses_source.getFeatureById(stopId);
-		}
+		feature = stops_source[stopId.substr(0,2)].getFeatureById(stopId);
 	}
 	
 	featureClicked(feature);
@@ -854,7 +870,7 @@
 	if(!f1) return f2;
 	if(!f2) return f1;
 	
-	return (getDistance(point, f1) < getDistance(point, f2)) ? f1 : f2;
+	return (getDistance(point, f1) <= getDistance(point, f2)) ? f1 : f2;
 }
 
 function init() {
@@ -870,66 +886,16 @@
 	
 	panel = new Panel(document.getElementById('panel'));
 	
-	stops_buses_source = new ol.source.Vector({
-		features: [],
-	});
-	stops_buses_layer = new ol.layer.Vector({
-		source: stops_buses_source,
-		renderMode: 'image',
-		style: new ol.style.Style({
-			image: new ol.style.Circle({
-				fill: new ol.style.Fill({color: '#07F'}),
-				stroke: new ol.style.Stroke({color: '#05B', width: 1}),
-				radius: 3,
-			}),
-		}),
-	});
-	
-	stops_trams_source = new ol.source.Vector({
-		features: [],
-	});
-	stops_trams_layer = new ol.layer.Vector({
-		source: stops_trams_source,
-		renderMode: 'image',
-		style: new ol.style.Style({
-			image: new ol.style.Circle({
-				fill: new ol.style.Fill({color: '#FA0'}),
-				stroke: new ol.style.Stroke({color: '#B70', width: 1}),
-				radius: 3,
-			}),
-		}),
-	});
-	
-	stop_points_buses_source = new ol.source.Vector({
-		features: [],
-	});
-	stop_points_buses_layer = new ol.layer.Vector({
-		source: stop_points_buses_source,
-		renderMode: 'image',
-		visible: false,
-		style: new ol.style.Style({
-			image: new ol.style.Circle({
-				fill: new ol.style.Fill({color: '#07F'}),
-				stroke: new ol.style.Stroke({color: '#05B', width: 2}),
-				radius: 3,
-			}),
-		}),
-	});
-	
-	stop_points_trams_source = new ol.source.Vector({
-		features: [],
-	});
-	stop_points_trams_layer = new ol.layer.Vector({
-		source: stop_points_trams_source,
-		renderMode: 'image',
-		visible: false,
-		style: new ol.style.Style({
-			image: new ol.style.Circle({
-				fill: new ol.style.Fill({color: '#FA0'}),
-				stroke: new ol.style.Stroke({color: '#B70', width: 2}),
-				radius: 3,
-			}),
-		}),
+	stops_type.forEach(function(type) {
+		stops_source[type] = new ol.source.Vector({
+			features: [],
+		});
+		stops_layer[type] = new ol.layer.Vector({
+			source: stops_source[type],
+			renderMode: 'image',
+			style: stops_style[type],
+		});
+		stops_mapping[type] = {};
 	});
 	
 	stop_selected_source = new ol.source.Vector({
@@ -1019,14 +985,14 @@
 		target: 'map',
 		layers: [
 			new ol.layer.Tile({
-				source: new ol.source.OSM()
+				source: new ol.source.OSM(),
 			}),
 			route_layer,
 			geolocation_layer,
-			stops_buses_layer,
-			stops_trams_layer,
-			stop_points_buses_layer,
-			stop_points_trams_layer,
+			stops_layer['st'],
+			stops_layer['sb'],
+			stops_layer['pt'],
+			stops_layer['pb'],
 			stop_selected_layer,
 			buses_layer,
 			trams_layer,
@@ -1069,19 +1035,25 @@
 	});
 	
 	// Change layer visibility on zoom
-	map.getView().on('change:resolution', function(e) {
-		stop_points_buses_layer.setVisible(map.getView().getZoom() >= 16);
-		stop_points_trams_layer.setVisible(map.getView().getZoom() >= 16);
-	});
+	var change_resolution = function(e) {
+		stops_type.forEach(function(type) {
+			if(type.startsWith('p')) {
+				stops_layer[type].setVisible(map.getView().getZoom() >= 16);
+				stops_layer[type].setVisible(map.getView().getZoom() >= 16);
+			}
+		});
+	};
+	map.getView().on('change:resolution', change_resolution);
+	change_resolution();
 	
 	$.when(
 		updateVehicleInfo(),
 		updateTrams(),
 		updateBuses(),
-		updateStops(ttss_trams_base, 't', stops_trams_source),
-		updateStops(ttss_buses_base, 'b', stops_buses_source),
-		updateStopPoints(ttss_trams_base, 't', stop_points_trams_source),
-		updateStopPoints(ttss_buses_base, 'b', stop_points_buses_source),
+		updateStops(ttss_trams_base, 't'),
+		updateStops(ttss_buses_base, 'b'),
+		updateStopPoints(ttss_trams_base, 't'),
+		updateStopPoints(ttss_buses_base, 'b'),
 	).done(function() {
 		hash();
 	});

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