Popup example

Uses an overlay to create a popup.

Click on the map to get a popup. The popup is composed of a few basic elements: a container, a close button, and a place for the content. To anchor the popup to the map, an ol.Overlay is created with the popup container. A listener is registered for the map's click event to display the popup, and another listener is set as the click handler for the close button to hide the popup.

overlay, popup, mapquest, openaerial
<!DOCTYPE html>
<html>
<head>
<title>Popup example</title>
<script src="https://code.jquery.com/jquery-1.11.2.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/ol3/3.7.0/ol.css" type="text/css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/ol3/3.7.0/ol.js"></script>
<link rel="stylesheet" href="popup.css">
<style>
.ol-popup {
  position: absolute;
  background-color: white;
  -webkit-filter: drop-shadow(0 1px 4px rgba(0,0,0,0.2));
  filter: drop-shadow(0 1px 4px rgba(0,0,0,0.2));
  padding: 15px;
  border-radius: 10px;
  border: 1px solid #cccccc;
  bottom: 12px;
  left: -50px;
}
.ol-popup:after, .ol-popup:before {
  top: 100%;
  border: solid transparent;
  content: " ";
  height: 0;
  width: 0;
  position: absolute;
  pointer-events: none;
}
.ol-popup:after {
  border-top-color: white;
  border-width: 10px;
  left: 48px;
  margin-left: -10px;
}
.ol-popup:before {
  border-top-color: #cccccc;
  border-width: 11px;
  left: 48px;
  margin-left: -11px;
}
.ol-popup-closer {
  text-decoration: none;
  position: absolute;
  top: 2px;
  right: 8px;
}
.ol-popup-closer:after {
  content: "✖";
}

</style>
</head>
<body>
<div class="container-fluid">

<div class="row-fluid">
  <div class="span12">
    <div id="map" class="map"></div>
    <div id="popup" class="ol-popup">
      <a href="#" id="popup-closer" class="ol-popup-closer"></a>
      <div id="popup-content"></div>
    </div>
  </div>
</div>

</div>
<script>
/**
 * Elements that make up the popup.
 */
var container = document.getElementById('popup');
var content = document.getElementById('popup-content');
var closer = document.getElementById('popup-closer');


/**
 * Add a click handler to hide the popup.
 * @return {boolean} Don't follow the href.
 */
closer.onclick = function() {
  overlay.setPosition(undefined);
  closer.blur();
  return false;
};


/**
 * Create an overlay to anchor the popup to the map.
 */
var overlay = new ol.Overlay(/** @type {olx.OverlayOptions} */ ({
  element: container,
  autoPan: true,
  autoPanAnimation: {
    duration: 250
  }
}));


/**
 * Create the map.
 */
var map = new ol.Map({
  layers: [
    new ol.layer.Tile({
      source: new ol.source.TileJSON({
        url: 'http://api.tiles.mapbox.com/v3/' +
            'mapbox.natural-earth-hypso-bathy.jsonp',
        crossOrigin: 'anonymous'
      })
    })
  ],
  overlays: [overlay],
  target: 'map',
  view: new ol.View({
    center: [0, 0],
    zoom: 2
  })
});


/**
 * Add a click handler to the map to render the popup.
 */
map.on('singleclick', function(evt) {
  var coordinate = evt.coordinate;
  var hdms = ol.coordinate.toStringHDMS(ol.proj.transform(
      coordinate, 'EPSG:3857', 'EPSG:4326'));

  content.innerHTML = '<p>You clicked here:</p><code>' + hdms +
      '</code>';
  overlay.setPosition(coordinate);
});

</script>
</body>
</html>