openstreetmap-website/app/assets/javascripts/index/directions.js
2025-02-09 06:51:56 +01:00

322 lines
9.8 KiB
JavaScript

//= require ./directions-endpoint
//= require_self
//= require_tree ./directions
OSM.Directions = function (map) {
var routeRequest = null; // jqXHR object of an ongoing route request or null
var chosenEngine;
var popup = L.popup({ autoPanPadding: [100, 100] });
var polyline = L.polyline([], {
color: "#03f",
opacity: 0.3,
weight: 10
});
var highlight = L.polyline([], {
color: "#ff0",
opacity: 0.5,
weight: 12
});
var endpointDragCallback = function (dragging) {
if (!map.hasLayer(polyline)) return;
if (dragging && !chosenEngine.draggable) return;
if (dragging && routeRequest) return;
getRoute(false, !dragging);
};
var endpointChangeCallback = function () {
getRoute(true, true);
};
var endpoints = [
OSM.DirectionsEndpoint(map, $("input[name='route_from']"), OSM.MARKER_GREEN, endpointDragCallback, endpointChangeCallback),
OSM.DirectionsEndpoint(map, $("input[name='route_to']"), OSM.MARKER_RED, endpointDragCallback, endpointChangeCallback)
];
var expiry = new Date();
expiry.setYear(expiry.getFullYear() + 10);
var engines = OSM.Directions.engines;
engines.sort(function (a, b) {
var localised_a = I18n.t("javascripts.directions.engines." + a.id),
localised_b = I18n.t("javascripts.directions.engines." + b.id);
return localised_a.localeCompare(localised_b);
});
var select = $("select.routing_engines");
engines.forEach(function (engine, i) {
select.append("<option value='" + i + "'>" + I18n.t("javascripts.directions.engines." + engine.id) + "</option>");
});
$(".directions_form .reverse_directions").on("click", function () {
var coordFrom = endpoints[0].latlng,
coordTo = endpoints[1].latlng,
routeFrom = "",
routeTo = "";
if (coordFrom) {
routeFrom = coordFrom.lat + "," + coordFrom.lng;
}
if (coordTo) {
routeTo = coordTo.lat + "," + coordTo.lng;
}
endpoints[0].swapCachedReverseGeocodes(endpoints[1]);
OSM.router.route("/directions?" + new URLSearchParams({
route: routeTo + ";" + routeFrom
}));
});
$(".directions_form .btn-close").on("click", function (e) {
e.preventDefault();
$(".describe_location").toggle(!endpoints[0].value);
$(".search_form input[name='query']").val(endpoints[0].value);
OSM.router.route("/" + OSM.formatHash(map));
});
function formatDistance(m) {
const unitTemplate = "javascripts.directions.distance_";
if (m < 1000) return I18n.t(unitTemplate + "m", { distance: Math.round(m) });
if (m < 10000) return I18n.t(unitTemplate + "km", { distance: (m / 1000.0).toFixed(1) });
return I18n.t(unitTemplate + "km", { distance: Math.round(m / 1000) });
}
function formatHeight(m) {
return I18n.t("javascripts.directions.distance_m", { distance: Math.round(m) });
}
function formatTime(s) {
var m = Math.round(s / 60);
var h = Math.floor(m / 60);
m -= h * 60;
return h + ":" + (m < 10 ? "0" : "") + m;
}
function findEngine(id) {
return engines.findIndex(function (engine) {
return engine.id === id;
});
}
function setEngine(index) {
chosenEngine = engines[index];
select.val(index);
}
function getRoute(fitRoute, reportErrors) {
// Cancel any route that is already in progress
if (routeRequest) routeRequest.abort();
const points = endpoints.map(p => p.latlng);
if (!points[0] || !points[1]) return;
$("header").addClass("closed");
OSM.router.replace("/directions?" + new URLSearchParams({
engine: chosenEngine.id,
route: points.map(p => OSM.cropLocation(p, map.getZoom()).join()).join(";")
}));
// copy loading item to sidebar and display it. we copy it, rather than
// just using it in-place and replacing it in case it has to be used
// again.
$("#sidebar_content").html($(".directions_form .loader_copy").html());
map.setSidebarOverlaid(false);
routeRequest = chosenEngine.getRoute(points, function (err, route) {
routeRequest = null;
if (err) {
map.removeLayer(polyline);
if (reportErrors) {
$("#sidebar_content").html("<div class=\"alert alert-danger\">" + I18n.t("javascripts.directions.errors.no_route") + "</div>");
}
return;
}
polyline
.setLatLngs(route.line)
.addTo(map);
if (fitRoute) {
map.fitBounds(polyline.getBounds().pad(0.05));
}
var distanceText = $("<p>").append(
I18n.t("javascripts.directions.distance") + ": " + formatDistance(route.distance) + ". " +
I18n.t("javascripts.directions.time") + ": " + formatTime(route.time) + ".");
if (typeof route.ascend !== "undefined" && typeof route.descend !== "undefined") {
distanceText.append(
$("<br>"),
I18n.t("javascripts.directions.ascend") + ": " + formatHeight(route.ascend) + ". " +
I18n.t("javascripts.directions.descend") + ": " + formatHeight(route.descend) + ".");
}
var turnByTurnTable = $("<table class='table table-hover table-sm mb-3'>")
.append($("<tbody>"));
var directionsCloseButton = $("<button type='button' class='btn-close'>")
.attr("aria-label", I18n.t("javascripts.close"));
$("#sidebar_content")
.empty()
.append(
$("<div class='d-flex'>").append(
$("<h2 class='flex-grow-1 text-break'>")
.text(I18n.t("javascripts.directions.directions")),
$("<div>").append(directionsCloseButton)),
distanceText,
turnByTurnTable
);
// Add each row
route.steps.forEach(function (step) {
const [ll, direction, instruction, dist, lineseg] = step;
var row = $("<tr class='turn'/>");
row.append("<td class='border-0'><div class='direction i" + direction + "'/></td> ");
row.append("<td>" + instruction);
row.append("<td class='distance text-body-secondary text-end'>" + getDistText(dist));
row.on("click", function () {
popup
.setLatLng(ll)
.setContent("<p>" + instruction + "</p>")
.openOn(map);
});
row.hover(function () {
highlight
.setLatLngs(lineseg)
.addTo(map);
}, function () {
map.removeLayer(highlight);
});
turnByTurnTable.append(row);
});
$("#sidebar_content").append("<p class=\"text-center\">" +
I18n.t("javascripts.directions.instructions.courtesy", { link: chosenEngine.creditline }) +
"</p>");
directionsCloseButton.on("click", function () {
map.removeLayer(polyline);
$("#sidebar_content").html("");
popup.close();
map.setSidebarOverlaid(true);
// TODO: collapse width of sidebar back to previous
});
});
function getDistText(dist) {
if (dist < 5) return "";
if (dist < 200) return String(Math.round(dist / 10) * 10) + "m";
if (dist < 1500) return String(Math.round(dist / 100) * 100) + "m";
if (dist < 5000) return String(Math.round(dist / 100) / 10) + "km";
return String(Math.round(dist / 1000)) + "km";
}
}
var chosenEngineIndex = findEngine("fossgis_osrm_car");
if (Cookies.get("_osm_directions_engine")) {
chosenEngineIndex = findEngine(Cookies.get("_osm_directions_engine"));
}
setEngine(chosenEngineIndex);
select.on("change", function (e) {
chosenEngine = engines[e.target.selectedIndex];
Cookies.set("_osm_directions_engine", chosenEngine.id, { secure: true, expires: expiry, path: "/", samesite: "lax" });
getRoute(true, true);
});
$(".directions_form").on("submit", function (e) {
e.preventDefault();
getRoute(true, true);
});
$(".routing_marker_column img").on("dragstart", function (e) {
var dt = e.originalEvent.dataTransfer;
dt.effectAllowed = "move";
var dragData = { type: $(this).data("type") };
dt.setData("text", JSON.stringify(dragData));
if (dt.setDragImage) {
var img = $("<img>").attr("src", $(e.originalEvent.target).attr("src"));
dt.setDragImage(img.get(0), 12, 21);
}
});
var page = {};
page.pushstate = page.popstate = function () {
$(".search_form").hide();
$(".directions_form").show();
$("#map").on("dragend dragover", function (e) {
e.preventDefault();
});
$("#map").on("drop", function (e) {
e.preventDefault();
var oe = e.originalEvent;
var dragData = JSON.parse(oe.dataTransfer.getData("text"));
var type = dragData.type;
var pt = L.DomEvent.getMousePosition(oe, map.getContainer()); // co-ordinates of the mouse pointer at present
pt.y += 20;
var ll = map.containerPointToLatLng(pt);
const llWithPrecision = OSM.cropLocation(ll, map.getZoom());
endpoints[type === "from" ? 0 : 1].setValue(llWithPrecision.join(", "));
});
endpoints[0].enable();
endpoints[1].enable();
const params = new URLSearchParams(location.search),
route = (params.get("route") || "").split(";");
if (params.has("engine")) {
var engineIndex = findEngine(params.get("engine"));
if (engineIndex >= 0) {
setEngine(engineIndex);
}
}
endpoints[0].setValue(params.get("from") || route[0] || "");
endpoints[1].setValue(params.get("to") || route[1] || "");
map.setSidebarOverlaid(!endpoints[0].latlng || !endpoints[1].latlng);
};
page.load = function () {
page.pushstate();
};
page.unload = function () {
$(".search_form").show();
$(".directions_form").hide();
$("#map").off("dragend dragover drop");
endpoints[0].disable();
endpoints[1].disable();
map
.removeLayer(popup)
.removeLayer(polyline);
};
return page;
};
OSM.Directions.engines = [];
OSM.Directions.addEngine = function (engine, supportsHTTPS) {
if (document.location.protocol === "http:" || supportsHTTPS) {
OSM.Directions.engines.push(engine);
}
};