Basic popup example
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Tim Schaub
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examples/popup.html
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97
examples/popup.html
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<!doctype html>
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<meta http-equiv="X-UA-Compatible" content="chrome=1">
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<meta name="viewport" content="initial-scale=1.0, user-scalable=no, width=device-width">
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<link rel="stylesheet" href="../css/ol.css" type="text/css">
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<link rel="stylesheet" href="../resources/bootstrap/css/bootstrap.min.css" type="text/css">
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<link rel="stylesheet" href="../resources/layout.css" type="text/css">
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<link rel="stylesheet" href="../resources/bootstrap/css/bootstrap-responsive.min.css" type="text/css">
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<style type="text/css">
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#vienna {
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text-decoration: none;
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color: white;
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font-size: 11pt;
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font-weight: bold;
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text-shadow: black 0.1em 0.1em 0.2em;
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}
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#popup-container {
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background-color: white;
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padding: 15px 20px;
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border-radius: 10px;
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margin-left: -30px;
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margin-bottom: 10px;
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}
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#popup-closer {
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position: absolute;
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top: 2px;
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right: 8px;
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}
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#popup-arrow {
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position: absolute;
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bottom: 1px;
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width: 0px;
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height: 0px;
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border-left: 10px solid transparent;
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border-right: 10px solid transparent;
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border-top: 10px solid white;
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}
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</style>
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<title>Overlay example</title>
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</head>
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<body>
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<div class="navbar navbar-inverse navbar-fixed-top">
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<div class="navbar-inner">
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<div class="container">
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<a class="brand" href="./">OpenLayers 3 Examples</a>
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<ul class="nav pull-right">
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<li><iframe class="github-watch-button" src="http://ghbtns.com/github-btn.html?user=openlayers&repo=ol3&type=watch&count=true"
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allowtransparency="true" frameborder="0" scrolling="0" height="20" width="90"></iframe></li>
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<li><a href="https://twitter.com/share" class="twitter-share-button" data-count="none" data-hashtags="openlayers"> </a></li>
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<li><div class="g-plusone-wrapper"><div class="g-plusone" data-size="medium" data-annotation="none"></div></div></li>
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</ul>
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</div>
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</div>
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</div>
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<div class="container-fluid">
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<div class="row-fluid">
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<div class="span12">
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<div id="map" class="map">
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<div id="popup-container">
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<a href="#" id="popup-closer">✖</a>
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<div id="popup-content"></div>
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<div id="popup-arrow"></div>
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</div>
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</div>
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</div>
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</div>
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<div class="row-fluid">
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<div class="span12">
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<h4 id="title">Popup example</h4>
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<p id="shortdesc">Uses an overlay to create a popup.</p>
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<div id="docs">
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<p>
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Click on the map to get a popup. The popup is composed of a few basic elements: a container, a close button, a place for the content, and an element to represent the little arrow at the bottom. To anchor the popup to the map, an <code>ol.Overlay</code> is created with the popup container. A listener is registered for the map's <code>click</code> event to render the popup, and another listener is set as the <code>click</code> handler for the close button to hide the popup.
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</p>
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<p>
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See the <a href="popup.js" target="_blank">popup.js source</a> to see how this is done.
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</p>
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</div>
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<div id="tags">overlay, popup, mapquest, openaerial</div>
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</div>
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</div>
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</div>
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<script src="loader.js?id=popup" type="text/javascript"></script>
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<script src="../resources/social-links.js" type="text/javascript"></script>
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</body>
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</html>
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64
examples/popup.js
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64
examples/popup.js
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goog.require('ol.Map');
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goog.require('ol.Overlay');
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goog.require('ol.View2D');
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goog.require('ol.coordinate');
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goog.require('ol.layer.TileLayer');
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goog.require('ol.proj');
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goog.require('ol.source.MapQuestOpenAerial');
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var layer = new ol.layer.TileLayer({
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source: new ol.source.MapQuestOpenAerial()
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});
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var map = new ol.Map({
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layers: [layer],
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target: 'map',
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view: new ol.View2D({
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center: [0, 0],
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zoom: 2
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})
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});
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/**
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* Elements that make up the popup.
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*/
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var container = document.getElementById('popup-container');
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var content = document.getElementById('popup-content');
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var closer = document.getElementById('popup-closer');
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/**
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* Add a click handler to hide the popup.
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* @return {boolean} Don't follow the href.
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*/
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closer.onclick = function() {
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container.style.visibility = 'hidden';
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return false;
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};
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/**
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* Create an overlay to anchor the popup to the map.
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*/
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var overlay = new ol.Overlay({
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map: map,
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element: container
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});
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/**
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* Add a click handler to the map to render the popup.
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*/
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map.on('click', function(evt) {
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var coordinate = evt.getCoordinate();
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var hdms = ol.coordinate.toStringHDMS(ol.proj.transform(
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coordinate, 'EPSG:3857', 'EPSG:4326'));
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overlay.setPosition(coordinate);
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content.innerHTML = '<p>The location you clicked was:</p><code>' + hdms +
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'</code>';
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container.style.visibility = 'visible';
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});
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