da3d8952da
By using the event's coordinate instead of the feature's, we make sure that the popup is shown where the user clicked when on a wrapped world.
96 lines
2.1 KiB
JavaScript
96 lines
2.1 KiB
JavaScript
goog.require('ol.Feature');
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goog.require('ol.Map');
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goog.require('ol.Overlay');
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goog.require('ol.View');
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goog.require('ol.geom.Point');
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goog.require('ol.layer.Tile');
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goog.require('ol.layer.Vector');
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goog.require('ol.source.TileJSON');
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goog.require('ol.source.Vector');
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goog.require('ol.style.Icon');
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goog.require('ol.style.Style');
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var iconFeature = new ol.Feature({
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geometry: new ol.geom.Point([0, 0]),
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name: 'Null Island',
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population: 4000,
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rainfall: 500
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});
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var iconStyle = new ol.style.Style({
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image: new ol.style.Icon(/** @type {olx.style.IconOptions} */ ({
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anchor: [0.5, 46],
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anchorXUnits: 'fraction',
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anchorYUnits: 'pixels',
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opacity: 0.75,
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src: 'data/icon.png'
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}))
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});
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iconFeature.setStyle(iconStyle);
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var vectorSource = new ol.source.Vector({
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features: [iconFeature]
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});
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var vectorLayer = new ol.layer.Vector({
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source: vectorSource
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});
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var rasterLayer = new ol.layer.Tile({
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source: new ol.source.TileJSON({
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url: 'http://api.tiles.mapbox.com/v3/mapbox.geography-class.jsonp',
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crossOrigin: ''
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})
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});
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var map = new ol.Map({
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renderer: common.getRendererFromQueryString(),
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layers: [rasterLayer, vectorLayer],
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target: document.getElementById('map'),
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view: new ol.View({
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center: [0, 0],
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zoom: 3
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})
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});
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var element = document.getElementById('popup');
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var popup = new ol.Overlay({
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element: element,
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positioning: 'bottom-center',
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stopEvent: false
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});
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map.addOverlay(popup);
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// display popup on click
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map.on('click', function(evt) {
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var feature = map.forEachFeatureAtPixel(evt.pixel,
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function(feature, layer) {
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return feature;
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});
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if (feature) {
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popup.setPosition(evt.coordinate);
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$(element).popover({
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'placement': 'top',
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'html': true,
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'content': feature.get('name')
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});
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$(element).popover('show');
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} else {
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$(element).popover('destroy');
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}
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});
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// change mouse cursor when over marker
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map.on('pointermove', function(e) {
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if (e.dragging) {
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$(element).popover('destroy');
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return;
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}
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var pixel = map.getEventPixel(e.originalEvent);
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var hit = map.hasFeatureAtPixel(pixel);
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map.getTarget().style.cursor = hit ? 'pointer' : '';
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});
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