From 0e60d1e6087985f6cb25cbaadb786f20f05d8938 Mon Sep 17 00:00:00 2001
From: Jacek Kowalski <Jacek@jacekk.info>
Date: Sun, 23 Apr 2017 23:36:05 +0000
Subject: [PATCH] Match inacurrate clicks to nearest feature

---
 map.js |  273 +++++++++++++++++++++++++++++++++++++++++++++++-------
 1 files changed, 235 insertions(+), 38 deletions(-)

diff --git a/map.js b/map.js
index f19bd45..b1ed525 100644
--- a/map.js
+++ b/map.js
@@ -1,5 +1,5 @@
 //var ttss_base = 'http://www.ttss.krakow.pl/internetservice';
-var ttss_base = '/proxy.php';
+var ttss_base = 'proxy.php';
 var ttss_refresh = 10000; // 10 seconds
 
 var vehicles_xhr = null;
@@ -14,10 +14,13 @@
 var stop_points_source = null;
 var stop_points_layer = null;
 
+var feature_id = null;
+var feature_xhr = null;
+var feature_timer = null;
+
 var map = null;
-var popup_feature_id = null;
+var map_sphere = null;
 var popup_element = document.getElementById('popup');
-var popup = null;
 var fail_element = document.getElementById('fail');
 
 var ignore_hashchange = false;
@@ -29,33 +32,33 @@
 	fail_element.style.top = '0.5em';
 }
 
-function fail_ajax(data) {
+function fail_popup(msg) {
+	addElementWithText(popup_element, 'p', msg).className = 'error';
+}
+
+function fail_ajax_generic(data, fnc) {
 	// abort() is not a failure
 	if(data.readyState == 0 && data.statusText == 'abort') return;
 	
 	if(data.status == 0) {
-		fail(lang.error_request_failed_connectivity, data);
+		fnc(lang.error_request_failed_connectivity, data);
 	} else if (data.statusText) {
-		fail(lang.error_request_failed_status.replace('$status', data.statusText), data);
+		fnc(lang.error_request_failed_status.replace('$status', data.statusText), data);
 	} else {
-		fail(lang.error_request_failed, data);
+		fnc(lang.error_request_failed, data);
 	}
 }
 
-function popupHide() {
-	popup.setPosition(undefined);
-	popup_feature_id = null;
+function fail_ajax(data) {
+	fail_ajax_generic(data, fail);
 }
 
-function popupShow(coordinates, id) {
-	popup.setPosition(coordinates);
-	if(id) {
-		popup_feature_id = id;
-	}
+function fail_ajax_popup(data) {
+	fail_ajax_generic(data, fail_popup);
 }
 
 function getGeometry(object) {
-	return new ol.geom.Point(ol.proj.fromLonLat([object.longitude / 3600000.0, object.latitude / 3600000.0]))
+	return new ol.geom.Point(ol.proj.fromLonLat([object.longitude / 3600000.0, object.latitude / 3600000.0]));
 }
 
 function updateVehicles() {
@@ -77,8 +80,8 @@
 			if(vehicle.isDeleted) {
 				if(vehicle_feature) {
 					vehicles_source.removeFeature(vehicle_feature);
-					if(popup_feature_id == vehicle_feature.getId()) {
-						popupHide();
+					if(feature_id == vehicle_feature.getId()) {
+						featureClicked();
 					}
 				}
 				continue;
@@ -128,10 +131,6 @@
 			} else {
 				vehicle_feature.setProperties(vehicle);
 				vehicle_feature.getStyle().getImage().setRotation(Math.PI * parseFloat(vehicle.heading) / 180.0);
-				
-				if(popup_feature_id == vehicle_feature.getId()) {
-					popupShow(vehicle_feature.getGeometry().getCoordinates());
-				}
 			}
 		}
 		
@@ -191,9 +190,103 @@
 	}).fail(fail_ajax);
 }
 
+function vehicleTable(tripId, table) {
+	if(feature_xhr) feature_xhr.abort();
+	if(feature_timer) clearTimeout(feature_timer);
+	
+	feature_xhr = $.get(
+		ttss_base + '/services/tripInfo/tripPassages'
+			+ '?tripId=' + encodeURIComponent(tripId)
+			+ '&mode=departure'
+	).done(function(data) {
+		if(!data.routeName || !data.directionText || data.old.length + data.actual.length == 0) {
+			return;
+		}
+		
+		deleteChildren(table);
+		
+		for(var i = 0, il = data.old.length; i < il; i++) {
+			var tr = document.createElement('tr');
+			addCellWithText(tr, data.old[i].actualTime || data.old[i].plannedTime);
+			addCellWithText(tr, data.old[i].stop_seq_num + '. ' + data.old[i].stop.name);
+			
+			tr.className = 'active';
+			table.appendChild(tr);
+		}
+		
+		for(var i = 0, il = data.actual.length; i < il; i++) {
+			var tr = document.createElement('tr');
+			addCellWithText(tr, data.actual[i].actualTime || data.actual[i].plannedTime);
+			addCellWithText(tr, data.actual[i].stop_seq_num + '. ' + data.actual[i].stop.name);
+			
+			if(data.actual[i].status == 'STOPPING') {
+				tr.className = 'success';
+			}
+			table.appendChild(tr);
+		}
+		
+		feature_timer = setTimeout(function() { vehicleTable(tripId, table); }, ttss_refresh);
+	}).fail(fail_ajax_popup);
+}
+
+function stopTable(stopType, stopId, table) {
+	if(feature_xhr) feature_xhr.abort();
+	if(feature_timer) clearTimeout(feature_timer);
+	
+	feature_xhr = $.get(
+		ttss_base + '/services/passageInfo/stopPassages/' + stopType
+			+ '?' + stopType + '=' + encodeURIComponent(stopId)
+			+ '&mode=departure'
+	).done(function(data) {
+		deleteChildren(table);
+		
+		for(var i = 0, il = data.old.length; i < il; i++) {
+			var tr = document.createElement('tr');
+			addCellWithText(tr, data.old[i].patternText);
+			var dir_cell = addCellWithText(tr, data.old[i].direction);
+			var vehicle = parseVehicle(data.old[i].vehicleId);
+			dir_cell.appendChild(displayVehicle(vehicle));
+			var status = parseStatus(data.old[i]);
+			addCellWithText(tr, status);
+			addCellWithText(tr, '');
+			
+			tr.className = 'active';
+			table.appendChild(tr);
+		}
+		
+		for(var i = 0, il = data.actual.length; i < il; i++) {
+			var tr = document.createElement('tr');
+			addCellWithText(tr, data.actual[i].patternText);
+			var dir_cell = addCellWithText(tr, data.actual[i].direction);
+			var vehicle = parseVehicle(data.actual[i].vehicleId);
+			dir_cell.appendChild(displayVehicle(vehicle));
+			var status = parseStatus(data.actual[i]);
+			var status_cell = addCellWithText(tr, status);
+			var delay = parseDelay(data.actual[i]);
+			var delay_cell = addCellWithText(tr, delay);
+			
+			if(status == lang.boarding_sign) {
+				tr.className = 'success';
+				status_cell.className = 'status-boarding';
+			} else if(parseInt(delay) > 9) {
+				tr.className = 'danger';
+				delay_cell.className = 'status-delayed';
+			} else if(parseInt(delay) > 3) {
+				tr.className = 'warning';
+			}
+			
+			table.appendChild(tr);
+		}
+		
+		feature_timer = setTimeout(function() { stopTable(stopType, stopId, table); }, ttss_refresh);
+	}).fail(fail_ajax_popup);
+}
+
 function featureClicked(feature) {
 	if(!feature) {
-		popupHide();
+		feature_id = null;
+		
+		$(popup_element).removeClass('show');
 		
 		ignore_hashchange = true;
 		window.location.hash = '';
@@ -205,20 +298,96 @@
 	
 	deleteChildren(popup_element);
 	
-	addParaWithText(popup_element, feature.get('name')).className = 'bold';
+	var close = addParaWithText(popup_element, '×');
+	close.className = 'close';
+	close.addEventListener('click', function() { featureClicked(); });
+	
+	var type;
+	var name = feature.get('name');
+	var additional;
+	var table = document.createElement('table');
+	var thead = document.createElement('thead');
+	var tbody = document.createElement('tbody');
+	table.appendChild(thead);
+	table.appendChild(tbody);
+	
 	switch(feature.getId().substr(0, 1)) {
 		case 'v':
-			var vehicle_type = parseVehicle(feature.get('id'));
-			if(vehicle_type) {
-				addParaWithText(popup_element, vehicle_type.num + ' ' + vehicle_type.type);
+			type = lang.type_vehicle;
+			
+			if(!feature.get('vehicle_type')) {
+				break;
 			}
+			
+			var span = displayVehicle(feature.get('vehicle_type'));
+			
+			additional = document.createElement('p');
+			setText(additional, span.title);
+			additional.insertBefore(span, additional.firstChild);
+			
+			addElementWithText(thead, 'th', lang.header_time);
+			addElementWithText(thead, 'th', lang.header_stop);
+			
+			vehicleTable(feature.get('tripId'), tbody);
+		break;
+		case 's':
+			type = lang.type_stop;
+			
+			addElementWithText(thead, 'th', lang.header_line);
+			addElementWithText(thead, 'th', lang.header_direction);
+			addElementWithText(thead, 'th', lang.header_time);
+			addElementWithText(thead, 'th', lang.header_delay);
+			
+			stopTable('stop', feature.get('shortName'), tbody);
+		break;
+		case 'p':
+			type = lang.type_stoppoint;
+			
+			additional = document.createElement('p');
+			additional.className = 'small';
+			addElementWithText(additional, 'a', lang.departures_for_stop).addEventListener(
+				'click',
+				function() {
+					featureClicked(stops_source.forEachFeature(function(stop_feature) {
+						if(stop_feature.get('shortName') == feature.get('shortName')) {
+							return stop_feature;
+						}
+					}));
+				}
+			);
+			
+			addElementWithText(thead, 'th', lang.header_line);
+			addElementWithText(thead, 'th', lang.header_direction);
+			addElementWithText(thead, 'th', lang.header_time);
+			addElementWithText(thead, 'th', lang.header_delay);
+			
+			stopTable('stopPoint', feature.get('stopPoint'), tbody);
 		break;
 	}
+	
+	var loader = addElementWithText(tbody, 'td', lang.loading);
+	loader.className = 'active';
+	loader.colspan = thead.childNodes.length;
+	
+	addParaWithText(popup_element, type).className = 'type';
+	addParaWithText(popup_element, name).className = 'name';
+	
+	if(additional) {
+		popup_element.appendChild(additional);
+	}
+	
+	popup_element.appendChild(table);
 	
 	ignore_hashchange = true;
 	window.location.hash = '#!' + feature.getId();
 	
-	popupShow(coordinates, feature.getId());
+	map.getView().animate({
+		center: feature.getGeometry().getCoordinates(),
+	});
+	
+	$(popup_element).addClass('show');
+	
+	feature_id = feature.getId();
 }
 
 function hash() {
@@ -260,9 +429,26 @@
 	}
 	
 	featureClicked(feature);
-	if(feature) {
-		map.getView().setCenter(feature.getGeometry().getCoordinates());
+}
+
+function getDistance(c1, c2) {
+	if(c1.getGeometry) {
+		c1 = c1.getGeometry().getCoordinates();
 	}
+	if(c2.getGeometry) {
+		c2 = c2.getGeometry().getCoordinates();
+	}
+	
+	var c1 = ol.proj.transform(c1, 'EPSG:3857', 'EPSG:4326');
+	var c2 = ol.proj.transform(c2, 'EPSG:3857', 'EPSG:4326');
+	return map_sphere.haversineDistance(c1, c2);
+}
+
+function returnClosest(point, f1, f2) {
+	if(!f1) return f2;
+	if(!f2) return f1;
+	
+	return (getDistance(point, f1) < getDistance(point, f2)) ? f1 : f2;
 }
 
 function init() {
@@ -298,13 +484,6 @@
 		source: vehicles_source,
 	});
 	
-	popup = new ol.Overlay({
-		element: popup_element,
-		positioning: 'bottom-center',
-		stopEvent: false,
-		offset: [0, -12]
-	});
-	
 	map = new ol.Map({
 		target: 'map',
 		layers: [
@@ -315,7 +494,6 @@
 			stop_points_layer,
 			vehicles_layer,
 		],
-		overlays: [popup],
 		view: new ol.View({
 			center: ol.proj.fromLonLat([19.94, 50.06]),
 			zoom: 13
@@ -333,10 +511,29 @@
 			})
 		]),
 	});
+	map_sphere = new ol.Sphere(6378137);
 	
 	// Display popup on click
 	map.on('singleclick', function(e) {
+		var point = e.coordinate;
 		var feature = map.forEachFeatureAtPixel(e.pixel, function(feature) { return feature; });
+		
+		if(!feature) {
+			if(stops_layer.getVisible()) {
+				feature = returnClosest(point, feature, stops_source.getClosestFeatureToCoordinate(point));
+			}
+			if(stop_points_layer.getVisible()) {
+				feature = returnClosest(point, feature, stop_points_source.getClosestFeatureToCoordinate(point));
+			}
+			if(vehicles_layer.getVisible()) {
+				feature = returnClosest(point, feature, vehicles_source.getClosestFeatureToCoordinate(point));
+			}
+			
+			if(getDistance(point, feature) > 200) {
+				feature = null;
+			}
+		}
+		
 		featureClicked(feature);
 	});
 

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