Leaflet/debug/tests/tile-events.html
2016-01-08 13:27:48 +01:00

90 lines
1.8 KiB
HTML

<!DOCTYPE html>
<html>
<head>
<title>Leaflet debug page</title>
<link rel="stylesheet" href="../../dist/leaflet.css" />
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" href="../css/screen.css" />
<script type="text/javascript" src="../../build/deps.js"></script>
<script src="../leaflet-include.js"></script>
<style>
#map {
margin: 0;
width: auto;
}
table {
border-collapse: collapse;
}
table th, table td {
border: 1px #444 solid;
margin: 0;
}
</style>
</head>
<body>
<p>Keep track of how many tileload/tileunload events are being fired. The counts should always match. See <a href='https://github.com/Leaflet/Leaflet/issues/4093'>#4093</a></p>
<div id="map" class="map"></div>
<table>
<tr><th>Start<th>Load<th>Error<th>Unload
<tr><td id='tileloadstart'><td id='tileload'><td id='tileerror'><td id='tileunload'>
</table>
<p>start = unload + visible on screen</p>
<script type="text/javascript">
var mapopts = {
center: [35, -122],
zoom : 5.7
};
var map = L.map('map', mapopts);
var grid = L.gridLayer({
attribution: 'Grid Layer',
// tileSize: L.point(150, 80)
tileSize: L.point(256, 256)
});
grid.createTile = function (coords, done) {
var tile = document.createElement('div');
tile.innerHTML = [coords.x, coords.y, coords.z].join(', ');
tile.style.border = '2px solid red';
// tile.style.background = 'white';
// test async
setTimeout(function () {
done(null, tile);
}, Math.random() * 1000);
return tile;
};
var counts = {
tileload: 0,
tileerror: 0,
tileloadstart: 0,
tileunload: 0
};
grid.on('tileload tileunload tileerror tileloadstart', function(ev){
document.getElementById(ev.type).innerHTML = ++counts[ev.type];
});
map.addLayer(grid);
</script>
</body>
</html>