52 lines
2.0 KiB
JavaScript
52 lines
2.0 KiB
JavaScript
(function () {
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farmOS.map.behaviors.popup = {
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attach: function (instance) {
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// Helper function to build the feature name as a link.
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const featureName = function (feature) {
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// Bail if either the name or url aren't defined.
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const name = feature.get('name');
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const url = feature.get('url');
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if (name === undefined || url === undefined) {
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return name;
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}
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// Build a link with the url and name.
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return `<a href="${url}">${name}</a>`;
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}
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// Create a popup and add it to the instance for future reference.
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instance.popup = instance.addPopup(function (event) {
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var content = '';
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var feature = instance.map.forEachFeatureAtPixel(event.pixel, function(feature, layer) { return feature; });
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if (feature) {
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// If the feature is a cluster, then create a list of names and add it
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// to the overall feature's description.
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var features = feature.get('features');
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if (features !== undefined) {
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var names = [];
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features.forEach(function (item) {
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const name = featureName(item);
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if (name !== undefined) {
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names.push(name);
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}
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});
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if (names.length !== 0) {
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feature.set('description', '<ul><li>' + names.join('</li><li>') + '</li></ul>');
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}
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feature.set('name', names.length + ' item(s):');
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}
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var name = featureName(feature) || '';
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var description = feature.get('description') || '';
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var measurement = instance.measureGeometry(feature.getGeometry(), instance.units);
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if (name !== '' || measurement !== '' || description !== '') {
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content = '<h4 class="ol-popup-name">' + name + '</h4><div class="ol-popup-measurement"><small>' + measurement + '</small></div><div class="ol-popup-description">' + description + '</div>';
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}
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}
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return content;
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});
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}
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};
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}());
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