X-Git-Url: https://git.argeo.org/?a=blobdiff_plain;f=org.argeo.app.geo.js%2Fsrc%2Forg.argeo.app.geo.js%2FOpenLayersMapPart.js;h=b2d09115f94309e890f5d31936f0b3f857d9c65a;hb=21433ef7b049abb44bbd3c815b6724a15912accf;hp=6eff99f2ff58d8fe3635474bdc2a0e0628585fff;hpb=69adaa7b31078cb30043b073dada14dee1a9e75d;p=gpl%2Fargeo-suite.git

diff --git a/org.argeo.app.geo.js/src/org.argeo.app.geo.js/OpenLayersMapPart.js b/org.argeo.app.geo.js/src/org.argeo.app.geo.js/OpenLayersMapPart.js
index 6eff99f..b2d0911 100644
--- a/org.argeo.app.geo.js/src/org.argeo.app.geo.js/OpenLayersMapPart.js
+++ b/org.argeo.app.geo.js/src/org.argeo.app.geo.js/OpenLayersMapPart.js
@@ -13,6 +13,7 @@ import VectorLayer from 'ol/layer/Vector.js';
 import GeoJSON from 'ol/format/GeoJSON.js';
 import GPX from 'ol/format/GPX.js';
 import Select from 'ol/interaction/Select.js';
+import Overlay from 'ol/Overlay.js';
 
 import MapPart from './MapPart.js';
 import { SentinelCloudless } from './OpenLayerTileSources.js';
@@ -79,9 +80,10 @@ export default class OpenLayersMapPart extends MapPart {
 		let mapPart = this;
 		this.#map.on('singleclick', function(e) {
 			let feature = null;
-			// we chose only one
+			// we chose the first one
 			e.map.forEachFeatureAtPixel(e.pixel, function(f) {
 				feature = f;
+				return true;
 			});
 			if (feature !== null)
 				mapPart.callbacks['onFeatureSingleClick'](feature.get('path'));
@@ -100,4 +102,54 @@ export default class OpenLayersMapPart extends MapPart {
 			}
 		});
 	}
+
+	enableFeaturePopup() {
+		// we cannot use 'this' in the function provided to OpenLayers
+		let mapPart = this;
+		/**
+		 * Elements that make up the popup.
+		 */
+		const container = document.getElementById('popup');
+		const content = document.getElementById('popup-content');
+		const closer = document.getElementById('popup-closer');
+
+		/**
+		 * Create an overlay to anchor the popup to the map.
+		 */
+		const overlay = new Overlay({
+			element: container,
+			autoPan: false,
+			autoPanAnimation: {
+				duration: 250,
+			},
+		});
+		this.#map.addOverlay(overlay);
+
+		let selected = null;
+		this.#map.on('pointermove', function(e) {
+			if (selected !== null) {
+				selected.setStyle(undefined);
+				selected = null;
+			}
+
+			e.map.forEachFeatureAtPixel(e.pixel, function(f) {
+				selected = f;
+				return true;
+			});
+
+			if (selected == null) {
+				overlay.setPosition(undefined);
+				return;
+			}
+			const coordinate = e.coordinate;
+			const path = selected.get('path');
+			const res = mapPart.callbacks['onFeaturePopup'](path);
+			if (res != null) {
+				content.innerHTML = res;
+				overlay.setPosition(coordinate);
+			} else {
+				overlay.setPosition(undefined);
+			}
+		});
+	}
 }