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add html/javascript to search addresses #66

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merged 1 commit into from
Jan 21, 2024
Merged

add html/javascript to search addresses #66

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27 changes: 24 additions & 3 deletions app/src/main/assets/map.html
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Original file line number Diff line number Diff line change
Expand Up @@ -9,6 +9,7 @@

<link rel="stylesheet" href="leaflet.css">
<script src="leaflet.js"></script>
<script src="search.js"></script>
<style>
html, body {
height: 100%;
Expand All @@ -24,15 +25,35 @@
</head>
<body>

<div id="search">
<input type="text" id="address_input" name="address_input" placeholder="Search a address" style="font-size:16pt;width:80%;">
</div>

<div id='map'></div>

<script>
var map = L.map('map').fitWorld();
map.panTo(new L.LatLng(12, 15));
map.zoomIn(1);
map.zoomIn(10);
var popup = L.popup();
var alreadyRunning = false;

var searchInput = document.getElementById("address_input");
searchInput.addEventListener("keypress", async function(event) {
if (event.key === "Enter") {
event.preventDefault();
var coords = await searchAddress(searchInput.value);
var lat = coords[0];
var long = coords[1];

var mapEvent = {
latlng: L.latLng(lat, long)
};
setOnMap(lat, long);
onMapClick(mapEvent);
}
});


L.tileLayer('https://tile.openstreetmap.org/{z}/{x}/{y}.png', {
attribution: '&copy; <a href="http://www.openstreetmap.org/copyright">OpenStreetMap</a>',
Expand All @@ -56,7 +77,8 @@
if (typeof marker != 'undefined')
map.removeLayer(marker);
marker = L.marker(e.latlng, {icon: icon}).addTo(map);
Android.setPosition(e.latlng.wrap().toString());
var wrap = e.latlng.wrap().toString();
Android.setPosition(wrap);
}

function setOnMap(aLat, aLng) {
Expand All @@ -80,7 +102,6 @@
marker = L.marker([lat, lng], {icon: icon}).addTo(map);
}


</script>
</body>
</html>
40 changes: 40 additions & 0 deletions app/src/main/assets/search.js
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Original file line number Diff line number Diff line change
@@ -0,0 +1,40 @@
async function searchAddress(query) {
// Define the Nominatim API endpoint
const api_url = "https://nominatim.openstreetmap.org/search";

var result = ["-1", "-1"];

// Parameters for the search
const params = {
q: query,
format: "json",
limit: "1"
};

// Construct the URL with query parameters
const url = new URL(api_url);
url.search = new URLSearchParams(params);

await fetch(url)
.then(response => response.json())
.then(data => {
result = getCoords(data);
})
.catch(error => {
console.error("Error:", error);
});

return result;
}

function getCoords(data)
{
if(data.length > 0)
{
var firstResult = data[0];
var lat = firstResult.lat;
var long = firstResult.lon;

return [lat, long];
}
}