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| <!DOCTYPE html>
<html lang="fr">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>[Google Maps] Itinéraire avec étapes</title>
<meta name="Author" content="NoSmoking">
<meta name="DVP-discussion" content="d2106048">
<meta name="description" content="[Google Maps] Ajout/suppression dynamique d'étapes pour le calcul d'un itinéraire.">
<style>
html, body {margin: 0;padding: 0;font: 1em/1.5 Verdana,sans-serif;}
h1, h2, h3 {margin: .25em 0;color: #069;}
time {float: right;margin: .5em;font-size: 0.9em;color: #888;}
main {display: block;margin: auto;max-width: 60em;}
section {position: relative;margin: 0 1em 1em;}
#map {
height: 30em;
margin-bottom: 1em;
border: 1px solid #CCC;
}
button, input {
font: inherit;
}
.form {
padding: .5em;
border: 1px solid #CCC;
font-size: .9em;
}
.form label {
display: inline-block;
min-width: 6em;
}
.form input {
width: 25em;
}
#liste-etapes {
counter-reset: nbrEtape;
margin: 0 .5em;
padding: 0 .5em;
border-left: 2px solid #CCC;
}
.etape {
display: flex;
padding: .25em;
}
.etape label {
counter-increment: nbrEtape;
display: inline-block;
min-width: 6em;
}
.etape label::after {
content: "Etape "counter( nbrEtape) " :";
}
.etape button {
margin-left: .25em;
}
.etape button.remove_field {
font-weight: bold;
color: #A00;
}
#directions-panel {
font-size: .9em;
}
</style>
</head>
<body>
<main>
<header>
<time datetime="2021-03-23">Mars 2021</time>
<h1>Itinéraire avec étapes</h1>
</header>
<div id="map"></div>
<div class="form">
<p>
<label>Départ :</label>
<input id="start" type="text" value="">
<button class="add_field_button">Ajouter une étape</button>
</p>
<div class="input_fields_wrap">
<ul id="liste-etapes">
</ul>
</div>
<p><a name="resultat"></a></p>
<p>
<label>Arrivé :</label>
<input id="end" type="text" value="">
</p>
<p>
<button id="submit">Calculer l'itinéraire</button>
<button id="reset">Reset</button>
</p>
</div>
<div id="directions-panel"></div>
</main>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js" integrity="sha384-ZvpUoO/+PpLXR1lu4jmpXWu80pZlYUAfxl5NsBMWOEPSjUn/6Z/hRTt8+pR6L4N2" crossorigin="anonymous"></script>
<script async defer src="https://maps.googleapis.com/maps/api/js?key=CLE_API&callback=initMap&libraries=places"></script>
<script>
function initMap() {
google.maps.event.addDomListener(window, 'load', function() {
var origin = new google.maps.places.Autocomplete(document.getElementById('start'));
var destination = new google.maps.places.Autocomplete(document.getElementById('end'));
});
var directionsService = new google.maps.DirectionsService;
var map = new google.maps.Map(document.getElementById('map'), {
"zoom": 5,
"backgroundColor": "#FFF",
"center": {
lat: 46.80,
lng: 2.65
}
});
const oDirectionsDisplay = new google.maps.DirectionsRenderer;
oDirectionsDisplay.setMap(map);
oDirectionsDisplay.setPanel(document.getElementById('directions-panel'));
// Affiche l'itinéraire
document.getElementById('submit').addEventListener('click', function() {
calculateAndDisplayRoute(directionsService, oDirectionsDisplay);
});
// Efface l'itinéraire affiché
document.getElementById("reset").addEventListener('click', function() {
// suppression des étapes
const btnEtape = document.querySelectorAll(".remove_field");
btnEtape.forEach((btn)=> btn.click());
// mise des input à zéro
const inputs = document.querySelectorAll(".form input");
inputs.forEach((input)=> input.value = "");
// vidage brut de l'itinéraire
oDirectionsDisplay.setDirections({routes:[]});
});
}
function calculateAndDisplayRoute(directionsService, directionsDisplay) {
var waypts = [];
var points = document.getElementsByName("waypoints[]");
for (var i = 0; i < points.length; i++) {
// il faut au minimum tester que la valeur est non vide
const data = points[i].value.trim();
if (data) {
waypts.push({
location: data,
stopover: true
});
}
}
directionsService.route({
origin: document.getElementById('start').value,
destination: document.getElementById('end').value,
waypoints: waypts,
optimizeWaypoints: true,
travelMode: 'DRIVING'
},
function(response, status) {
if (status === 'OK') {
directionsDisplay.setDirections(response);
}
else {
window.alert('Impossible de tracer l\'itinéraire. Cause : ' + status + '\n\nAvez vous mis au moins une étape ?\n\nAvez vous renseigné l\'état pour chaque étape (ex : Page, arizona ou Moab, utah) ?');
}
});
}
/**
* https://stackoverflow.com/questions/21024090/google-places-autocomplete-how-to-clean-up-pac-container
* by Driver : https://stackoverflow.com/users/7143894/driver
*/
function getAutocompletePacContainer(autocomplete) {
const place = autocomplete.gm_accessors_.place;
const placeKey = Object.keys(place).find((value) => (
(typeof(place[value]) === 'object') && (place[value].hasOwnProperty('gm_accessors_'))
));
const input = place[placeKey].gm_accessors_.input[placeKey];
const inputKey = Object.keys(input).find((value) => (
(input[value].classList && input[value].classList.contains('pac-container'))
));
return input[inputKey];
}
$(document).ready(function() {
// Ajouter des étapes
const MAX_ETAPE = 23;
const $wrapper = $("#liste-etapes");
const $addButton = $(".add_field_button");
$addButton.on("click", function(e) {
e.preventDefault();
const nbr = $("[name='waypoints[]']").length;
if (nbr < MAX_ETAPE) {
// création des éléments, une façon de faire
$etape = $("<li>")
.addClass("etape");
$label = $("<label>");
$input = $("<input>")
.addClass("waypoints")
.attr({
"name": "waypoints[]",
"placeholder": "Sous la forme : ville, état"
});
$btn = $("<button>")
.addClass("remove_field")
.text("✖");
// ajout des éléments étapes
$etape.append($label, $input, $btn);
$wrapper.append($etape);
// init autoComplete
const auto = new google.maps.places.Autocomplete($input[0]);
// on garde la réf. pour la suppression
$btn.data("autocomplete", auto);
}
else {
alert("Pas plus de " + (MAX_ETAPE + 2) + " étapes en comptant le départ et l'arrivé SVP...");
}
});
$wrapper.on("click", ".remove_field", function(e) {
e.preventDefault();
const auto = $(this).data("autocomplete");
getAutocompletePacContainer(auto).remove();
$(this).parent().remove();
});
});
</script>
</body>
</html> |
