Example of a attributions visibily change on map resize, to collapse them on small maps.
When the map gets too small because of a resize, the attribution will be collapsed. This is because the collapsible
option is set to true if the width of the map gets smaller than 600 pixels.
<!DOCTYPE html>
<html>
<head>
<title>Attributions</title>
<link rel="stylesheet" href="https://openlayers.org/en/v4.6.4/css/ol.css" type="text/css">
<!-- The line below is only needed for old environments like Internet Explorer and Android 4.x -->
<script src=""></script>
<script src="https://openlayers.org/en/v4.6.4/build/ol.js"></script>
</head>
<body>
<div id="map" class="map"></div>
<script>
var attribution = new ol.control.Attribution({
collapsible: false
});
var map = new ol.Map({
layers: [
new ol.layer.Tile({
source: new ol.source.OSM()
})
],
controls: ol.control.defaults({attribution: false}).extend([attribution]),
target: 'map',
view: new ol.View({
center: [0, 0],
zoom: 2
})
});
function checkSize() {
var small = map.getSize()[0] < 600;
attribution.setCollapsible(small);
attribution.setCollapsed(small);
}
window.addEventListener('resize', checkSize);
checkSize();
</script>
</body>
</html>