☰

WME Route Checker

Allows editors to check the route between two segments

当前为 2023-02-05 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name                WME Route Checker
  3. // @namespace           http://userscripts.org/users/419370
  4. // @description         Allows editors to check the route between two segments
  5. // @include             https://www.waze.com/*/editor*
  6. // @include             https://www.waze.com/editor*
  7. // @include             https://beta.waze.com/*
  8. // @exclude             https://www.waze.com/*user/*editor/*
  9. // @version             1.50
  10. // @grant               none
  11. // ==/UserScript==
  12.  
  13. // globals
  14. var wmerc_version = "1.50";
  15.  
  16. var AVOID_TOLLS = 1;
  17. var AVOID_FREEWAYS = 2;
  18. var AVOID_DIRT = 4;
  19. var ALLOW_UTURNS = 16;
  20. var VEHICLE_TAXI = 64;
  21. var VEHICLE_BIKE = 128;
  22.  
  23. var route_options = ALLOW_UTURNS; // default
  24.  
  25. var routeColors = ["#8309e1", "#52BAD9", "#888800" ];
  26.  
  27. var WMERC_lineLayer_route;
  28. var WMERC_lineLayer_markers;
  29.  
  30. function addRouteCheckerTab() {
  31.   if (W.selectionManager.getSelectedFeatures().length != 2) {
  32.     WMERC_lineLayer_route.destroyFeatures();
  33.     WMERC_lineLayer_route.setVisibility(false);
  34.     WMERC_lineLayer_markers.destroyFeatures();
  35.     WMERC_lineLayer_markers.setVisibility(false);
  36.     return;
  37.   }
  38.  
  39.   if (getId('routeOptions') !== null) {
  40.     return;
  41.   }
  42.  
  43.   // hook into edit panel on the left
  44.   var navTabs = getId('edit-panel').getElementsByTagName('wz-tabs')[0];
  45.  
  46.   var routeTab = document.createElement('wz-tab');
  47.   routeTab.id = 'route-checker';
  48.   routeTab.className = 'routes-tab';
  49.   routeTab.label = 'Routes';
  50.   navTabs.appendChild(routeTab);
  51.  
  52.   routeTab.addEventListener('tabActive', fetchRoute);
  53.  
  54.   // add new edit tab to left of the map
  55.   var routeOptions = document.createElement('div');
  56.   routeOptions.id = "routeOptions";
  57.   routeOptions.style.borderTop = "solid 2px #E9E9E9";
  58.   routeOptions.style.borderBottom = "solid 2px #E9E9E9";
  59.   routeTab.appendChild(routeOptions);
  60.  
  61.   var lang = I18n.translations[I18n.locale];
  62.  
  63.   if (location.hostname.match(/editor.*.waze.com/)) {
  64.     var coords1 = getCoords(W.selectionManager.getSelectedFeatures()[0]);
  65.     var coords2 = getCoords(W.selectionManager.getSelectedFeatures()[1]);
  66.     var url = getLivemap()
  67.             + `&from_lon=${coords1.lon}&from_lat=${coords1.lat}`
  68.             + `&to_lon=${coords2.lon}&to_lat=${coords2.lat}`;
  69.  
  70.     routeOptions.innerHTML = '<p><b><a href="'+url+'" title="Opens in new tab" target="LiveMap" style="color:#8309e1">Show routes in LiveMap</a> &raquo;</b></p>';
  71.   } else {
  72.     routeOptions.innerHTML = `<p><b><a href="#" id="goroutes" title="WME Route Checker v${wmerc_version}" style="color:#8309e1">`
  73.                     + 'Show routes between these 2 segments</a></b><br>'
  74.                     + '<b>'+lang.restrictions.editing.driving.dropdowns.vehicle_type+':</b>'
  75.                     + ' <span style="white-space: nowrap;"><input type="radio" name="_vehicleType" id="_vehicleType_private" value="0" checked> '
  76.                     + lang.restrictions.vehicle_types.PRIVATE + '</span>'
  77.                     + ' <span style="white-space: nowrap;"><input type="radio" name="_vehicleType" id="_vehicleType_taxi" value="1"> '
  78.                     + lang.restrictions.vehicle_types.TAXI + '</span>'
  79.                     + ' <span style="white-space: nowrap;"><input type="radio" name="_vehicleType" id="_vehicleType_bike" value="1"> '
  80.                     + lang.restrictions.vehicle_types.MOTORCYCLE + '</span>'
  81.                     + '<br>'
  82.                     + '<b>Avoid:</b>'
  83.                     + ' <span style="white-space: nowrap;"><input type="checkbox" id="_avoidTolls" /> ' + lang.edit.segment.fields.toll_road + '</span>'
  84.                     + ' <span style="white-space: nowrap;"><input type="checkbox" id="_avoidFreeways" /> ' + lang.segment.road_types[3] + '</span>'
  85.                     + ' <span style="white-space: nowrap;"><input type="checkbox" id="_avoidDirt" /> ' + lang.edit.segment.fields.unpaved + '</span>'
  86.                     + '<br>'
  87.                     + '<b>Allow:</b>'
  88.                     + ' <input type="checkbox" id="_allowUTurns" /> U-Turns</p>';
  89.  
  90.      getId('_avoidTolls').checked              = route_options & AVOID_TOLLS;
  91.      getId('_avoidFreeways').checked           = route_options & AVOID_FREEWAYS;
  92.      getId('_avoidDirt').checked               = route_options & AVOID_DIRT;
  93.      getId('_allowUTurns').checked             = route_options & ALLOW_UTURNS;
  94.      getId('_vehicleType_taxi').checked        = route_options & VEHICLE_TAXI;
  95.      getId('_vehicleType_bike').checked        = route_options & VEHICLE_BIKE;
  96.  
  97.      // automatically start getting route when user clicks on link
  98.      getId('goroutes').onclick = fetchRoute;
  99.   }
  100.  
  101.   routeTab.setAttribute("is-active","false");
  102.  
  103.   var tabChange = new MutationObserver(function(mutations) {
  104.     mutations.forEach(function(mutation) {
  105.       if (mutation.type === "attributes" && mutation.attributeName == "is-active") {
  106.         if (mutation.target.isActive) {
  107.           var tabs = document.getElementById('edit-panel').getElementsByTagName('wz-tabs')[0].getElementsByTagName('wz-tab');
  108.           for (var i=0; i < tabs.length; i++) {
  109.             if (tabs[i] != routeTab) {
  110.               tabs[i].setAttribute("is-active","false");
  111.             }
  112.           }
  113.           mutation.target.style.display="block";
  114.         }
  115.         else {
  116.           mutation.target.style.display="none";
  117.         }
  118.       }
  119.     });
  120.   });
  121.   tabChange.observe(routeTab, { attributes: true });
  122.  
  123.   // create empty div ready for instructions
  124.   var routeTest = document.createElement('div');
  125.   routeTest.id = "routeTest";
  126.   routeTab.appendChild(routeTest);
  127.  
  128.   return;
  129. }
  130.  
  131. function saveOptions() {
  132.   route_options = (getId('_avoidTolls').checked    ? AVOID_TOLLS    : 0)
  133.                 + (getId('_avoidFreeways').checked ? AVOID_FREEWAYS : 0)
  134.                 + (getId('_avoidDirt').checked     ? AVOID_DIRT     : 0)
  135.                 + (getId('_allowUTurns').checked   ? ALLOW_UTURNS   : 0)
  136.                 + (getId('_vehicleType_taxi').checked ? VEHICLE_TAXI : 0)
  137.                 + (getId('_vehicleType_bike').checked ? VEHICLE_BIKE : 0);
  138.  
  139.   console.log("WME Route Checker: saving options: " + route_options);
  140.   localStorage.WMERouteChecker = JSON.stringify(route_options);
  141. }
  142.  
  143. function getOptions() {
  144.   var list = 'AVOID_TOLL_ROADS' + (route_options & AVOID_TOLLS    ? ':t' : ':f') + ','
  145.            + 'AVOID_PRIMARIES'  + (route_options & AVOID_FREEWAYS ? ':t' : ':f') + ','
  146.            + 'AVOID_TRAILS'     + (route_options & AVOID_DIRT     ? ':t' : ':f') + ','
  147.            + 'ALLOW_UTURNS'     + (route_options & ALLOW_UTURNS   ? ':t' : ':f');
  148.   return list;
  149. }
  150.  
  151. function getCoords(segment) {
  152.   var numpoints = segment.geometry.components.length;
  153.   var middle = Math.floor(numpoints / 2);
  154.  
  155.   var seglat, seglon;
  156.   if (numpoints % 2 == 1 || numpoints < 2) { // odd number, middle point
  157.     seglat = segment.geometry.components[middle].y;
  158.     seglon = segment.geometry.components[middle].x;
  159.   }
  160.   else { // even number - take average of middle two points
  161.     seglat = (segment.geometry.components[middle].y
  162.            +  segment.geometry.components[middle-1].y) / 2.0;
  163.     seglon = (segment.geometry.components[middle].x
  164.            +  segment.geometry.components[middle-1].x) / 2.0;
  165.   }
  166.   return OpenLayers.Layer.SphericalMercator.inverseMercator(seglon,seglat);
  167. }
  168.  
  169. function fetchRoute(reverse) {
  170.   saveOptions();
  171.  
  172.   var coords1, coords2;
  173.   reverse = (reverse !== false);
  174.   var selected = W.selectionManager.getSelectedFeatures();
  175.   if (reverse) {
  176.     coords1 = getCoords(selected[0]);
  177.     coords2 = getCoords(selected[1]);
  178.   } else {
  179.     coords1 = getCoords(selected[1]);
  180.     coords2 = getCoords(selected[0]);
  181.   }
  182.  
  183.   // get the route, fix and parse the json
  184.   getId('routeTest').innerHTML = "<p><b>Fetching route from LiveMap...</b></p>";
  185.   var url = getRoutingManager();
  186.   var data = {
  187.     from: `x:${coords1.lon} y:${coords1.lat} bd:true`,
  188.     to: `x:${coords2.lon} y:${coords2.lat} bd:true`,
  189.     returnJSON: true,
  190.     returnGeometries: true,
  191.     returnInstructions: true,
  192.     type: 'HISTORIC_TIME',
  193.     clientVersion: '4.0.0',
  194.     timeout: 60000,
  195.     nPaths: 3,
  196.     options: getOptions()};
  197.  
  198.   if (route_options & VEHICLE_TAXI) {
  199.     data.vehicleType = 'TAXI';
  200.   }
  201.   else if (route_options & VEHICLE_BIKE) {
  202.     data.vehicleType = 'MOTORCYCLE';
  203.   }
  204.   if (window.location.hostname == "beta.waze.com") {
  205.     data.id = "beta";
  206.   }
  207.  
  208.   $.ajax({
  209.     dataType: "json",
  210.     url: url,
  211.     data: data,
  212.     dataFilter: function(data, dataType) {
  213.       return data.replace(/NaN/g, '0');
  214.     },
  215.     success: function(json) {
  216.       showNavigation(json, reverse);
  217.     }
  218.   });
  219.   return false;
  220. }
  221.  
  222. function getLivemap() {
  223.   var center_lonlat=new OpenLayers.LonLat(W.map.getCenter().lon,W.map.getCenter().lat);
  224.   center_lonlat.transform(new OpenLayers.Projection ("EPSG:900913"),new OpenLayers.Projection("EPSG:4326"));
  225.   var coords = `?lon=${center_lonlat.lon}&lat=${center_lonlat.lat}`;
  226.  
  227.   if (route_options & VEHICLE_TAXI) {
  228.     coords += "&rp_vehicleType=TAXI";
  229.   }
  230.   else if (route_options & VEHICLE_BIKE) {
  231.     coords += "&rp_vehicleType=MOTORCYCLE";
  232.   }
  233.   if (window.location.hostname == "beta.waze.com") {
  234.     coords += "&rp_id=beta";
  235.   }
  236.   coords += "&rp_options=" + getOptions();
  237.  
  238.   return `https://www.waze.com/livemap${coords}&overlay=false`;
  239. }
  240.  
  241. function getRoutingManager() {
  242.   if (W.model.countries.top.env == "NA") { // Canada, Puerto Rico & US
  243.     return '/RoutingManager/routingRequest';
  244.   } else if (W.model.countries.top.env == "IL") { // Israel
  245.     return '/il-RoutingManager/routingRequest';
  246.   } else { // ROW
  247.     return '/row-RoutingManager/routingRequest';
  248.   }
  249. }
  250.  
  251. function plotRoute(coords, index) {
  252.   var points = [];
  253.   for (var i in coords) {
  254.     if (i > 0) {
  255.       var point = OpenLayers.Layer.SphericalMercator.forwardMercator(coords[i].x, coords[i].y);
  256.       points.push(new OpenLayers.Geometry.Point(point.lon,point.lat));
  257.     }
  258.   }
  259.   var newline = new OpenLayers.Geometry.LineString(points);
  260.  
  261.   var style = {
  262.     strokeColor: routeColors[index],
  263.     strokeOpacity: 0.7,
  264.     strokeWidth: 8 - index * 2
  265.   };
  266.   var lineFeature = new OpenLayers.Feature.Vector(newline, {type: "routeArrow"}, style);
  267.  
  268.   // Display new segment
  269.   WMERC_lineLayer_route.addFeatures([lineFeature]);
  270. }
  271.  
  272. function showNavigation(nav_json, reverse) {
  273.   WMERC_lineLayer_route.destroyFeatures();
  274.   WMERC_lineLayer_route.setVisibility(true);
  275.   WMERC_lineLayer_markers.destroyFeatures();
  276.   WMERC_lineLayer_markers.setVisibility(true);
  277.  
  278.   // write instructions
  279.   var instructions = getId('routeTest');
  280.   instructions.innerHTML = '';
  281.   instructions.style.display = 'block';
  282.   instructions.style.height = document.getElementById('map').style.height;
  283.  
  284.   var nav_coords;
  285.   if (typeof nav_json.alternatives !== "undefined") {
  286.     for (var r = 0; r < nav_json.alternatives.length && r < 3; r++) {
  287.       showInstructions(instructions, nav_json.alternatives[r], r);
  288.       plotRoute(nav_json.alternatives[r].coords, r);
  289.   }
  290.     nav_coords = nav_json.alternatives[0].coords;
  291.   } else {
  292.     showInstructions(instructions, nav_json, 0);
  293.     plotRoute(nav_json.coords, 0);
  294.     nav_coords = nav_json.coords;
  295.   }
  296.  
  297.   // zoom to show the primary route
  298.   //var box = geom.getBounds();
  299.   //box = box.transform(W.map.olMap.displayProjection, W.map.getProjectionObject());
  300.   //W.map.zoomToExtent(box);
  301.  
  302.   var lon1 = nav_coords[0].x;
  303.   var lat1 = nav_coords[0].y;
  304.  
  305.   var end = nav_coords.length - 1;
  306.   var lon2 = nav_coords[end].x;
  307.   var lat2 = nav_coords[end].y;
  308.  
  309.   var rerouteArgs = `{lon:${lon1},lat:${lat1}},{lon:${lon2},lat:${lat2}}`;
  310.  
  311.   // footer for extra links
  312.   var footer = document.createElement('div');
  313.   footer.className = 'routes_footer';
  314.  
  315.   // create link to reverse the route
  316.   var reverseLink = document.createElement('a');
  317.   reverseLink.innerHTML = '&#8646; Reverse Route';
  318.   reverseLink.href = '#';
  319.   reverseLink.setAttribute('onClick', 'fetchRoute('+!reverse+');');
  320.   reverseLink.addEventListener('click', function() { fetchRoute(!reverse); }, false);
  321.   footer.appendChild(reverseLink);
  322.  
  323.   footer.appendChild(document.createTextNode(' | '));
  324.  
  325.   var url = getLivemap()
  326.           + `&from=ll.${lat1},${lon1}`
  327.           + `&to=ll.${lat2},${lon2}`;
  328.  
  329.   // create link to view the navigation instructions
  330.   var livemapLink = document.createElement('a');
  331.   livemapLink.innerHTML = 'View in LiveMap &raquo;';
  332.   livemapLink.href = url;
  333.   livemapLink.target="LiveMap";
  334.   footer.appendChild(livemapLink);
  335.  
  336.   footer.appendChild(document.createElement('br'));
  337.  
  338.   // add link to script homepage and version
  339.   var scriptLink = document.createElement('a');
  340.   scriptLink.innerHTML = `WME Route Checker v${wmerc_version}`;
  341.   scriptLink.href = 'https://www.waze.com/forum/viewtopic.php?t=64777';
  342.   scriptLink.style.fontStyle = 'italic';
  343.   scriptLink.target="_blank";
  344.   footer.appendChild(scriptLink);
  345.  
  346.   instructions.appendChild(footer);
  347.  
  348.   return false;
  349. }
  350.  
  351. function showInstructions(instructions, nav_json, r) {
  352.   // for each route returned by Waze...
  353.   var route = nav_json.response;
  354.   var streetNames = route.streetNames;
  355.  
  356.   if (r > 0) { // divider
  357.     instructions.appendChild(document.createElement('p'));
  358.   }
  359.  
  360.   // name of the route, with coloured icon
  361.   var route_name = document.createElement('p');
  362.   route_name.className = 'route';
  363.   route_name.style.borderColor = routeColors[r];
  364.   route_name.innerHTML = `<b style="color:${routeColors[r]}">Via ${route.routeName}</b>`;
  365.   if (route.dueToOverride != null) {
  366.     route_name.innerHTML += `<br><i>${route.dueToOverride}</i>`;
  367.   }
  368.   else if (route.isRestricted) {
  369.     route_name.innerHTML += `<br><i style="color: darkorange">Restricted Areas: ${route.areas}</i>`;
  370.   }
  371.   else {
  372.     route_name.innerHTML += `<br><i>${route.routeType} Route</i>`;
  373.   }
  374.   instructions.appendChild(route_name);
  375.  
  376.   if (route.tollMeters > 0) {
  377.     route_name.innerHTML = '<span style="float: right; background: #88f; color: white; font-size: small">&nbsp;TOLL&nbsp;</span>' + route_name.innerHTML;
  378.   }
  379.  
  380.   var optail = '';
  381.   var prevStreet = '';
  382.   var currentItem = null;
  383.   var totalDist = 0;
  384.   var totalTime = 0;
  385.   var isToll = false;
  386.   var isRestricted = 0;
  387.   //var detourSaving = 0;
  388.  
  389.   // street name at starting point
  390.   var streetName = streetNames[route.results[0].street];
  391.   var departFrom = 'depart';
  392.   if (!streetName || streetName === null) {
  393.     streetName = '';
  394.   }
  395.   else {
  396.     departFrom = `depart from ${streetName}`;
  397.     streetName = ` from <span style="color: blue">${streetName}<span>`;
  398.   }
  399.  
  400.   // turn icon at starting coordinates
  401.   if (r === 0) {
  402.     addTurnImageToMap(nav_json.coords[0], getTurnImage('BEGIN'), departFrom);
  403.   }
  404.  
  405.   // add first instruction (depart)
  406.   currentItem = document.createElement('a');
  407.   currentItem.className = 'step';
  408.   currentItem.innerHTML = getTurnImageSrc(getTurnImage('FORWARD')) + 'depart' + streetName;
  409.   instructions.appendChild(currentItem);
  410.  
  411.   var segments = [];
  412.   // iterate over all the steps in the list
  413.   for (var i = 0; i < route.results.length; i++) {
  414.     totalDist += route.results[i].length;
  415.     totalTime += route.results[i].crossTime;
  416.     //detourSaving += route.results[i].detourSavings;
  417.  
  418.     segments.push(route.results[i].path.segmentId);
  419.  
  420.     if (route.results[i].isToll) {
  421.       if (!isToll) {
  422.         addMarkerToMap(route.results[i].path, "blue", "Toll");
  423.         isToll = true;
  424.       }
  425.     }
  426.     else {
  427.       if (isToll) {
  428.         addMarkerToMap(route.results[i].path, "blue", "End");
  429.         isToll = false;
  430.       }
  431.     }
  432.  
  433.     if (route.results[i].avoidStatus == "AVOID") {
  434.       if (isRestricted != route.results[i].areas.length) {
  435.         addMarkerToMap(route.results[i].path, 'darkorange', `${route.results[i].areas}`);
  436.         isRestricted = route.results[i].areas.length;
  437.       }
  438.     }
  439.     else {
  440.       if (isRestricted > 0) {
  441.         addMarkerToMap(route.results[i].path, 'darkorange', 'End')
  442.         isRestricted = 0;
  443.       }
  444.     }
  445.  
  446.     if (!route.results[i].instruction) {
  447.       continue;
  448. 	}
  449.     var opcode = route.results[i].instruction.opcode;
  450.     if (!opcode) {
  451.       continue;
  452. 	}
  453.  
  454.     // ignore these
  455.     if (opcode.match(/ROUNDABOUT_EXIT|NONE/) && route.results[i].instruction.laneGuidance == null) {
  456.       continue;
  457.     }
  458.  
  459.     if (opcode == 'NONE' && !route.results[i].instruction.laneGuidance.enable_display && !route.results[i].instruction.laneGuidance.enable_voice) {
  460.       continue; // straight-on is set to 'Waze selected'
  461.     }
  462.  
  463.     // the image for the turn
  464.     var dirImage = getTurnImage(opcode);
  465.     var dirImageSrc = '';
  466.     if (dirImage !== '') {
  467.       dirImageSrc = '';
  468.     }
  469.  
  470.     // the name that TTS will read out (in blue)
  471.     streetName = getNextStreetName(route.results, i, route.streetNames);
  472.  
  473.     // roundabouts with nth exit instructions
  474.     if (opcode == 'ROUNDABOUT_ENTER') {
  475.       opcode += route.results[i].instruction.arg + 'th exit';
  476.       opcode = opcode.replace(/1th/, '1st');
  477.       opcode = opcode.replace(/2th/, '2nd');
  478.       opcode = opcode.replace(/3th/, '3rd');
  479.     }
  480.  
  481.     // convert opcode to pretty text
  482.     opcode = opcode.replace(/APPROACHING_DESTINATION/, 'arrive');
  483.     opcode = opcode.replace(/ROUNDABOUT_(EXIT_)?LEFT/, 'at the roundabout, turn left');
  484.     opcode = opcode.replace(/ROUNDABOUT_(EXIT_)?RIGHT/, 'at the roundabout, turn right');
  485.     opcode = opcode.replace(/ROUNDABOUT_(EXIT_)?STRAIGHT/, 'at the roundabout, continue straight');
  486.     opcode = opcode.replace(/ROUNDABOUT_ENTER/, 'at the roundabout, take ');
  487.     opcode = opcode.toLowerCase().replace(/_/, ' ');
  488.     opcode = opcode.replace(/uturn/, 'make a U-turn');
  489.     opcode = opcode.replace(/roundabout u/, 'at the roundabout, make a U-turn');
  490.  
  491.     // convert keep to exit if needed
  492.     var keepSide = W.model.isLeftHand ? /keep left/ : /keep right/;
  493.     if (opcode.match(keepSide) && i+1 < route.results.length &&
  494.         isKeepForExit(route.results[i].roadType, route.results[i+1].roadType)) {
  495.       opcode = opcode.replace(/keep (.*)/, 'exit $1');
  496.     }
  497.  
  498.     var laneInfo = "";
  499.     var laneIcon = "";
  500.     if (route.results[i].clientLaneSet != null) {
  501.       var lanes = route.results[i].clientLaneSet.client_lane;
  502.       var guide = route.results[i].instruction.laneGuidance;
  503.       laneInfo += " |";
  504.       for (var l = 0; l < lanes.length; l++) {
  505.         if (l > 0) {
  506.           laneInfo += "\u2506"; // dashed line
  507.         }
  508.         var laneArrow = "\u2001"; // space \u00A0
  509.         for (var a = 0; a < lanes[l].angle_object.length; a++) {
  510.           var lane = lanes[l].angle_object[a];
  511.           if (lane.selected) {
  512.             laneArrow = getLaneArrow(lane.angle);
  513.           }
  514.         }
  515.         laneInfo += ` ${laneArrow} `;
  516.         laneIcon += laneArrow != '\u2001' ? laneArrow : '.';
  517.       }
  518.       laneInfo += "| ";
  519.       if (guide != null && opcode == 'none') {
  520.         if (lanes.enable_voice_for_instruction) {
  521.           laneInfo += "\uD83D\uDD08\uD83D\uDD08"; // View and hear
  522.         }
  523.         if (guide.enable_voice) {
  524.           laneInfo += "\uD83D\uDD08"; // View and hear
  525.         }
  526.         else if (guide.enable_display) {
  527.           laneInfo += "\uD83D\uDC41"; // View only
  528.         }
  529.       }
  530.     }
  531.  
  532.     // show turn symbol on the map (for first route only)
  533.     if (r === 0) {
  534. 	  var title;
  535.       if (opcode == 'arrive') {
  536.         var end = nav_json.coords.length - 1;
  537.         title = 'arrive at ' + (streetName !== '' ? streetName : 'destination');
  538.         addTurnImageToMap(nav_json.coords[end], dirImage, title);
  539.       }
  540.       else if (opcode != 'none') {
  541.         title = opcode.replace(/at the roundabout, /, '');
  542.         if (streetName !== '') title += ` onto ${streetName}`;
  543.         if (laneIcon !== '') title = ` \u2502${laneIcon}\u2502 \u00A0 ${title}`;
  544.         addTurnImageToMap(route.results[i+1].path, dirImage, title);
  545.       }
  546.       else if (laneInfo != '') {
  547.         addTurnImageToMap(route.results[i+1].path, null, `\u2502${laneIcon}\u2502`);
  548.       }
  549.     }
  550.  
  551.     // pretty street name
  552.     if (streetName !== '') {
  553.       if (opcode == 'arrive') {
  554.         streetName = ` at <span style="color: blue">${streetName}</span>`;
  555.       }
  556.       else if (opcode != 'none') {
  557.         streetName = ` onto <span style="color: blue">${streetName}</span>`;
  558.       }
  559.     }
  560.  
  561.     if (laneInfo != '') {
  562.       laneInfo = "<div align='center'>" + laneInfo + "</div>";
  563.     }
  564.  
  565.     // display new instruction
  566.     currentItem = document.createElement('a');
  567.     currentItem.className = 'step';
  568.     if (opcode != 'none') {
  569.       currentItem.innerHTML = getTurnImageSrc(dirImage) + opcode + streetName + laneInfo;
  570.     }
  571.     else {
  572.       currentItem.innerHTML = laneInfo;
  573.     }
  574.     if (opcode.match(/0th exit/)) {
  575.       currentItem.style.color = 'red';
  576.     }
  577.     instructions.appendChild(currentItem);
  578.   }
  579.  
  580.   // append distance and time to last instruction
  581.   currentItem.title = `${(totalDist/1609).toFixed(3)} miles`;
  582.   currentItem.innerHTML += ` - ${totalDist/1000} km`;
  583.   currentItem.innerHTML += ` - ${timeFromSecs(totalTime)}`;
  584.   //if (detourSaving > 0) {
  585.   //  currentItem.innerHTML += '<br>&nbsp; <i>detour saved ' + timeFromSecs(detourSaving) + '</i>';
  586.   //}
  587.  
  588.   var selectAll = document.createElement('a');
  589.   selectAll.className = 'step select';
  590.   selectAll.innerHTML = 'Select route segments &#8605;';
  591.   selectAll.href = "#";
  592.   selectAll.addEventListener('click', function() { selectSegmentIDs(segments); }, false);
  593.   instructions.appendChild(selectAll);
  594. }
  595.  
  596. function getLaneArrow(angle)
  597. {
  598.   switch (angle) {
  599.     case -180: return "\u21B6";
  600.     case -135: return "\u2199";
  601.     case -90: return "\u21B0";
  602.     case -45: return "\u2196";
  603.     case -0: return "\u2191";
  604.     case 45: return "\u2197";
  605.     case 90: return "\u21B1";
  606.     case 135: return "\u2198";
  607.     case 180: return "\u21B7";
  608.     default: return angle;
  609.   }
  610. }
  611.  
  612. function selectSegmentIDs(segments) {
  613.   var objects = [];
  614.   for (var i = 0; i < segments.length; i++) {
  615.     var segment = W.model.segments.getObjectById(segments[i]);
  616.     if (segment != null) {
  617.       objects.push(segment);
  618.     }
  619.   }
  620.   W.selectionManager.setSelectedModels(objects);
  621.   return false;
  622. }
  623.  
  624. function getNextStreetName(results, index, streetNames) {
  625.   var streetName = '';
  626.   var unnamedCount = 0;
  627.   var unnamedLength = 0;
  628.  
  629.   // destination
  630.   if (index == results.length-1) {
  631.     streetName = streetNames[results[index].street];
  632.     if (!streetName || streetName === null) {
  633.       streetName = '';
  634. 	}
  635.   }
  636.  
  637.   // look ahead to next street name
  638.   while (++index < results.length && streetName === '') {
  639.     streetName = streetNames[results[index].street];
  640.     if (!streetName || streetName === null) {
  641.       streetName = '';
  642. 	}
  643.  
  644.     // "Navigation instructions for unnamed segments" <- in the Wiki
  645.     if (streetName === '' && !isFreewayOrRamp(results[index].roadType)
  646. 		&& !isRoundabout(results[index].path.segmentId)) {
  647.       unnamedLength += length;
  648.       unnamedCount++;
  649.       if (unnamedCount >= 4 || unnamedLength >= 400) {
  650.         //console.log("- unnamed segments too long; break");
  651.         break;
  652.       }
  653.     }
  654.   }
  655.  
  656.   return streetName;
  657. }
  658.  
  659. function getTurnImage(opcode) {
  660.   var dirImage = '';
  661.   if (W.model.getTopCountry().leftHandTraffic) {
  662.     opcode = opcode.replace(/(ROUNDABOUT_)(EXIT_)?/, "$1UK_");
  663.   }
  664.   switch (opcode) {
  665.     case "BEGIN":       return 'https://www.waze.com/livemap3/assets/pin-9ad4ceb21a2449b4d0bcacdcf464f015.png';
  666.     case "CONTINUE":
  667.     case "NONE":        dirImage = "big_direction_forwardc0958c4d4c5c79bcb656d34f3afb3ea2.png"; break;
  668.     case "TURN_LEFT":   dirImage = "big_direction_left5b94fa33f945d46ab1bdd1131ac0457e.png"; break;
  669.     case "TURN_RIGHT":  dirImage = "big_direction_right2d403871f04763260a40c537e231897e.png"; break;
  670.     case "KEEP_LEFT":
  671.     case "EXIT_LEFT":   dirImage = "big_direction_exit_left1c1498a6dec9582bae81d34ec9e6dc3b.png"; break;
  672.     case "KEEP_RIGHT":
  673.     case "EXIT_RIGHT":  dirImage = "big_direction_exit_rightba4fee1380f556a8570252c6745f1442.png"; break;
  674.     case "UTURN":       dirImage = "big_direction_u63cf785b68a57e8663020098cd07ed76.png"; break;
  675.     case "APPROACHING_DESTINATION":   dirImage = "big_direction_end25226c71aed0efd3a2db41978066febc.png"; break;
  676.     case "ROUNDABOUT_LEFT":
  677.     case "ROUNDABOUT_EXIT_LEFT":      dirImage = "big_directions_roundabout_l54dc48b91e36549b26bae30135462780.png"; break;
  678.     case "ROUNDABOUT_UK_LEFT":        dirImage = "big_directions_roundabout_UK_ldc86a0b99cfcd4ed03b0192d5b350c70.png"; break;
  679.     case "ROUNDABOUT_RIGHT":
  680.     case "ROUNDABOUT_EXIT_RIGHT":     dirImage = "big_directions_roundabout_rc114740b6cafc42177a53aa6c803c14d.png"; break;
  681.     case "ROUNDABOUT_UK_RIGHT":       dirImage = "big_directions_roundabout_r_UKc34794c4d01ec8a9fa012150d2f1e02a.png"; break;
  682.     case "ROUNDABOUT_STRAIGHT":
  683.     case "ROUNDABOUT_EXIT_STRAIGHT":  dirImage = "big_directions_roundabout_sffadf4fd7b277b8ef2f21688e79b9351.png"; break;
  684.     case "ROUNDABOUT_UK_STRAIGHT":    dirImage = "big_directions_roundabout_UK_s01ea5c47f4e08b20532505d84b3271e0.png"; break;
  685.     case "ROUNDABOUT_ENTER":
  686.     case "ROUNDABOUT_EXIT":           dirImage = "big_directions_roundabout9f9bf37022d431be50fecc457cd6e3df.png"; break;
  687.     case "ROUNDABOUT_UK_ENTER":
  688.     case "ROUNDABOUT_UK_EXIT":        dirImage = "big_directions_roundabout_UK7dce607d7359326a799fd9d3ad8542aa.png"; break;
  689.     case "ROUNDABOUT_U":              dirImage = "big_directions_roundabout_u3634283a7d740f30eb18c203f6a357be.png"; break;
  690.     case "ROUNDABOUT_UK_U":           dirImage = "big_directions_roundabout_u_UKba204c8a12885976f9bc5b07165b8644.png"; break;
  691.     default: return '';
  692.   }
  693.   return 'https://editor-assets.waze.com/production/img/' + dirImage;
  694. }
  695.  
  696. function getTurnImageSrc(dirImage) {
  697.   if (dirImage !== '') {
  698.     return '<img src="' + dirImage + '" style="float: left; top: 0; padding-right: 4px" width="16" height="16" />';
  699.   }
  700.   return '';
  701. }
  702.  
  703. function isKeepForExit(fromType, toType) {
  704.   // primary to non-primary
  705.   if (isPrimaryRoad(fromType) && !isPrimaryRoad(toType)) {
  706.     return true;
  707.   }
  708.   // ramp to non-primary or non-ramp
  709.   if (isRamp(fromType) && !isPrimaryRoad(toType) && !isRamp(toType)) {
  710.     return true;
  711.   }
  712.   return false;
  713. }
  714.  
  715. function isFreewayOrRamp(t) {
  716.   return t === 3 /*FREEWAY*/ || t === 4 /*RAMP*/;
  717. }
  718.  
  719. function isPrimaryRoad(t) {
  720.   return t === 3 /*FREEWAY*/ || t === 6 /*MAJOR_HIGHWAY*/ || t === 7 /*MINOR_HIGHWAY*/;
  721. }
  722.  
  723. function isRamp(t) {
  724.   return t === 4 /*RAMP*/;
  725. }
  726.  
  727. function isRoundabout(id) {
  728.   var segment = W.model.segments.getObjectById(id);
  729.   if (segment != null) {
  730.     return segment.attributes.junctionId !== null;
  731.   }
  732.   return false;
  733. }
  734.  
  735. function timeFromSecs(seconds)
  736. {
  737.   var hh = '00'+Math.floor(((seconds/86400)%1)*24);
  738.   var mm = '00'+Math.floor(((seconds/3600)%1)*60);
  739.   var ss = '00'+Math.round(((seconds/60)%1)*60);
  740.   return hh.slice(-2) + ':' + mm.slice(-2) + ':' + ss.slice(-2);
  741. }
  742.  
  743. function addTurnImageToMap(location, image, title) {
  744.   if (image === '') return;
  745.  
  746.   var coords = OpenLayers.Layer.SphericalMercator.forwardMercator(location.x, location.y);
  747.   var point = new OpenLayers.Geometry.Point(coords.lon,coords.lat);
  748.  
  749.   var style = {
  750.     externalGraphic: image,
  751.     graphicWidth: 30,
  752.     graphicHeight: 32,
  753.     label: title,
  754.     labelXOffset: 20,
  755.     labelAlign: 'left',
  756.     labelOutlineColor: 'white',
  757.     labelOutlineWidth: 3,
  758.     fontWeight: 'bold',
  759.     fontColor: routeColors[0]
  760.   };
  761.  
  762.   if (title.match(/0th exit/)) {
  763.     style.fontColor = 'red';
  764.   }
  765.  
  766.   var imageFeature = new OpenLayers.Feature.Vector(point, null, style);
  767.   WMERC_lineLayer_markers.addFeatures([imageFeature]);
  768.  
  769.   if (image === null) {
  770.     style = {
  771.       label: '●',
  772.       labelAlign: 'center',
  773.       labelOutlineColor: 'white',
  774.       labelOutlineWidth: 3,
  775.       fontWeight: 'bold',
  776.       fontColor: routeColors[0],
  777.       fontSize: '20pt'
  778.     };
  779.  
  780.     imageFeature = new OpenLayers.Feature.Vector(point, null, style);
  781.     WMERC_lineLayer_route.addFeatures([imageFeature]);
  782.   }
  783. }
  784.  
  785. function addMarkerToMap(location, color, title) {
  786.   var coords = OpenLayers.Layer.SphericalMercator.forwardMercator(location.x, location.y);
  787.   var point = new OpenLayers.Geometry.Point(coords.lon,coords.lat);
  788.  
  789.   var style = {
  790.     label: title,
  791.     labelAlign: 'right',
  792.     labelOutlineColor: color,
  793.     labelOutlineWidth: 3,
  794.     labelXOffset: -16,
  795.     fontWeight: 'bold',
  796.     fontColor: 'white',
  797.     strokeColor: color,
  798.     strokeWidth: 2,
  799.     fillColor: 'white'
  800.   };
  801.  
  802.   if (color == 'blue') {
  803.     style.labelAlign = 'center';
  804.     style.labelXOffset = 0;
  805.     style.labelYOffset = -20;
  806.   }
  807.  
  808.   var imageFeature = new OpenLayers.Feature.Vector(point, null, style);
  809.   WMERC_lineLayer_route.addFeatures([imageFeature]);
  810.  
  811.   style = {
  812.     labelAlign: 'center',
  813.     labelOutlineColor: color,
  814.     labelOutlineWidth: 3,
  815.     fontWeight: 'bold',
  816.     fontColor: 'white'
  817.   };
  818.  
  819.   if (title != 'End') {
  820.     style.label = '●';
  821.     style.fontSize = '20pt';
  822.   }
  823.   else {
  824.     style.label = '⊘';
  825.   }
  826.  
  827.   imageFeature = new OpenLayers.Feature.Vector(point, null, style);
  828.   WMERC_lineLayer_route.addFeatures([imageFeature]);
  829. }
  830.  
  831. /* helper function */
  832. function getElementsByClassName(classname, node) {
  833.   if(!node) node = document.getElementsByTagName("body")[0];
  834.   var a = [];
  835.   var re = new RegExp('\\b' + classname + '\\b');
  836.   var els = node.getElementsByTagName("*");
  837.   for (var i=0,j=els.length; i<j; i++) {
  838.     if (re.test(els[i].className)) {
  839. 	  a.push(els[i]);
  840. 	}
  841.   }
  842.   return a;
  843. }
  844.  
  845. function getId(node) {
  846.   return document.getElementById(node);
  847. }
  848.  
  849. function initialiseRouteChecker() {
  850.   if (typeof W == 'undefined') {
  851.     return; // not WME
  852.   }
  853.  
  854.   console.log("WME Route Checker: initialising v" + wmerc_version);
  855.  
  856.   if (localStorage.WMERouteChecker) {
  857.     route_options = JSON.parse(localStorage.WMERouteChecker);
  858.     console.log("WME Route Checker: loaded options: " + route_options);
  859.   }
  860.  
  861.   /* dirty hack to inject stylesheet in to the DOM */
  862.   var style = document.createElement('style');
  863.   style.innerHTML = "#routeTest {padding: 0 4px 0 0; overflow-y: auto;}\n"
  864.                   + "#routeTest p.route {margin: 0; padding: 4px 8px; border-bottom: silver solid 3px; background: #eee}\n"
  865.                   + "#routeTest a.step {display: block; margin: 0; padding: 3px 8px; text-decoration: none; color:black;border-bottom: silver solid 1px;}\n"
  866.                   + "#routeTest a.step:hover {background: #ffd;}\n"
  867.                   + "#routeTest a.step:active {background: #dfd;}\n"
  868.                   + "#routeTest a.select {color: #00f; text-align: right}\n"
  869.                   + "#routeTest div.routes_footer {text-align: center; margin-bottom: 25px;}\n";
  870.   (document.body || document.head || document.documentElement).appendChild(style);
  871.  
  872.   // add a new layer for routes
  873.   WMERC_lineLayer_route = new OpenLayers.Layer.Vector("Route Checker Script",
  874.     { displayInLayerSwitcher: false,
  875.       uniqueName: 'route_checker' }
  876.   );
  877.   W.map.addLayer(WMERC_lineLayer_route);
  878.  
  879.   // add a new layer for markers
  880.   WMERC_lineLayer_markers = new OpenLayers.Layer.Vector("Route Checker Script Markers",
  881.     { displayInLayerSwitcher: false,
  882.       uniqueName: 'route_checker2' }
  883.   );
  884.   W.map.addLayer(WMERC_lineLayer_markers);
  885.  
  886.   var observer = new MutationObserver(function(mutations) {
  887.     mutations.forEach(function(mutation) {
  888.       if (mutation.addedNodes.length > 0 && mutation.target.className == 'contents') {
  889.         addRouteCheckerTab();
  890.       }
  891.     });
  892.   });
  893.   observer.observe(document.getElementById('edit-panel'), {childList: true, subtree: true});
  894. }
  895.  
  896. // bootstrap!
  897. (function()
  898. {
  899.   setTimeout(initialiseRouteChecker, 1003);
  900. })();
  901.  
  902. /* end ======================================================================= */