<!DOCTYPE html>
<html>
<head>
<meta charset='utf-8' />
<title>Filter symbols by toggling a list</title>
<meta name='viewport' content='initial-scale=1,maximum-scale=1,user-scalable=no' />
<script src='https://api.tiles.mapbox.com/mapbox-gl-js/v0.44.2/mapbox-gl.js'></script>
<link href='https://api.tiles.mapbox.com/mapbox-gl-js/v0.44.2/mapbox-gl.css' rel='stylesheet' />
<style>
body { margin:0; padding:0; }
#map { position:absolute; top:0; bottom:0; width:100%; }
</style>
</head>
<body>
<style>
.mapboxgl-popup {
max-width: 400px;
font: 12px/20px 'Helvetica Neue', Arial, Helvetica, sans-serif;
}
</style>
<style>
.filter-group {
font: 12px/20px 'Helvetica Neue', Arial, Helvetica, sans-serif;
font-weight: 600;
position: absolute;
top: 10px;
right: 10px;
z-index: 1;
border-radius: 3px;
width: 120px;
color: #fff;
}
.filter-group input[type=checkbox]:first-child + label {
border-radius: 3px 3px 0 0;
}
.filter-group label:last-child {
border-radius: 0 0 3px 3px;
border: none;
}
.filter-group input[type=checkbox] {
display: none;
}
.filter-group input[type=checkbox] + label {
background-color: #3386c0;
display: block;
cursor: pointer;
padding: 10px;
border-bottom: 1px solid rgba(0, 0, 0, 0.25);
}
.filter-group input[type=checkbox] + label {
background-color: #3386c0;
text-transform: capitalize;
}
.filter-group input[type=checkbox] + label:hover,
.filter-group input[type=checkbox]:checked + label {
background-color: #4ea0da;
}
.filter-group input[type=checkbox]:checked + label:before {
content: '✔';
margin-right: 5px;
}
</style>
<div id='map'></div>
<nav id='filter-group' class='filter-group'></nav>
<script>
mapboxgl.accessToken = 'pk.eyJ1IjoiamVtcyIsImEiOiJjaWtvZm0xZXQwd3QydWRtNmE5NnZwaDhzIn0.LOAVAPyPrc42UNHyoNn1hw';
var places = {
"type": "FeatureCollection",
"features": [{
"type": "Feature",
"properties": {
"icon": "theatre"
},
"geometry": {
"type": "Point",
"coordinates": [-77.038659, 38.931567]
}
}, {
"type": "Feature",
"properties": {
"icon": "theatre"
},
"geometry": {
"type": "Point",
"coordinates": [-77.003168, 38.894651]
}
}, {
"type": "Feature",
"properties": {
"description": "<strong>Mad Men Season Five Finale Watch Party</strong><p>Head to Lounge 201 (201 Massachusetts Avenue NE) Sunday for a <a href=\"http://madmens5finale.eventbrite.com/\" target=\"_blank\" title=\"Opens in a new window\">Mad Men Season Five Finale Watch Party</a>, complete with 60s costume contest, Mad Men trivia, and retro food and drink. 8:00-11:00 p.m. $10 general admission, $20 admission and two hour open bar.</p>",
"icon": "bar"
},
"geometry": {
"type": "Point",
"coordinates": [-110.913537, 32.266872]
}
}, {
"type": "Feature",
"properties": {
"icon": "bicycle"
},
"geometry": {
"type": "Point",
"coordinates": [-77.052477, 38.943951]
}
}, {
"type": "Feature",
"properties": {
"icon": "music"
},
"geometry": {
"type": "Point",
"coordinates": [-77.031706, 38.914581]
}
}, {
"type": "Feature",
"properties": {
"icon": "music"
},
"geometry": {
"type": "Point",
"coordinates": [-77.020945, 38.878241]
}
}, {
"type": "Feature",
"properties": {
"icon": "music"
},
"geometry": {
"type": "Point",
"coordinates": [-77.007481, 38.876516]
}
}]
};
var filterGroup = document.getElementById('filter-group');
var map = new mapboxgl.Map({
container: 'map',
style: 'mapbox://styles/mapbox/light-v9',
center: [-110.9747, 32.2226],
zoom: 11.15
});
// Create a popup, but don't add it to the map yet.
var popup = new mapboxgl.Popup({
closeButton: false,
closeOnClick: false
});
map.on('mouseenter', 'places', function(e) {
// Change the cursor style as a UI indicator.
map.getCanvas().style.cursor = 'pointer';
var coordinates = e.features[0].geometry.coordinates.slice();
var description = e.features[0].properties.description;
// Ensure that if the map is zoomed out such that multiple
// copies of the feature are visible, the popup appears
// over the copy being pointed to.
while (Math.abs(e.lngLat.lng - coordinates[0]) > 180) {
coordinates[0] += e.lngLat.lng > coordinates[0] ? 360 : -360;
}
// Populate the popup and set its coordinates
// based on the feature found.
popup.setLngLat(coordinates)
.setHTML(description)
.addTo(map);
});
map.on('mouseleave', 'places', function() {
map.getCanvas().style.cursor = '';
popup.remove();
});
map.on('load', function () {
map.addLayer({
"id": "route",
"type": "line",
"source": {
"type": "geojson",
"data": {
"type": "Feature",
"properties": {},
"geometry": {
"type": "LineString",
"coordinates": [
[-122.48369693756104, 37.83381888486939],
[-122.48348236083984, 37.83317489144141],
[-122.48339653015138, 37.83270036637107],
[-122.48356819152832, 37.832056363179625],
[-122.48404026031496, 37.83114119107971],
[-122.48404026031496, 37.83049717427869],
[-122.48348236083984, 37.829920943955045],
[-122.48356819152832, 37.82954808664175],
[-122.48507022857666, 37.82944639795659],
[-122.48610019683838, 37.82880236636284],
[-122.48695850372314, 37.82931081282506],
[-122.48700141906738, 37.83080223556934],
[-122.48751640319824, 37.83168351665737],
[-122.48803138732912, 37.832158048267786],
[-122.48888969421387, 37.83297152392784],
[-122.48987674713133, 37.83263257682617],
[-122.49043464660643, 37.832937629287755],
[-122.49125003814696, 37.832429207817725],
[-122.49163627624512, 37.832564787218985],
[-122.49223709106445, 37.83337825839438],
[-122.49378204345702, 37.83368330777276]
]
}
}
},
"layout": {
"line-join": "round",
"line-cap": "round"
},
"paint": {
"line-color": "#888",
"line-width": 8
}
});
});
map.on('load', function() {
// Add a GeoJSON source containing place coordinates and information.
map.addSource("places", {
"type": "geojson",
"data": places
});
places.features.forEach(function(feature) {
var symbol = feature.properties['icon'];
var layerID = 'poi-' + symbol;
// Add a layer for this symbol type if it hasn't been added already.
if (!map.getLayer(layerID)) {
map.addLayer({
"id": layerID,
"type": "symbol",
"source": "places",
"layout": {
"icon-image": symbol + "-15",
"icon-allow-overlap": true
},
"filter": ["==", "icon", symbol]
});
// Add checkbox and label elements for the layer.
var input = document.createElement('input');
input.type = 'checkbox';
input.id = layerID;
input.checked = true;
filterGroup.appendChild(input);
var label = document.createElement('label');
label.setAttribute('for', layerID);
label.textContent = symbol;
filterGroup.appendChild(label);
// When the checkbox changes, update the visibility of the layer.
input.addEventListener('change', function(e) {
map.setLayoutProperty(layerID, 'visibility',
e.target.checked ? 'visible' : 'none');
});
}
});
});
</script>
</body>
</html>