feat: add google-map-idle listener, add google-map-bounds_changed

Author: thiasos

src/main/java/com/flowingcode/vaadin/addons/googlemaps/GoogleMap.java

@@ -32,6 +32,7 @@
 import com.vaadin.flow.component.Tag;
 import com.vaadin.flow.component.dependency.JsModule;
 import com.vaadin.flow.component.dependency.NpmPackage;
+import com.vaadin.flow.dom.DebouncePhase;
 import com.vaadin.flow.dom.DomListenerRegistration;
 import com.vaadin.flow.shared.Registration;
 import elemental.json.JsonObject;
@@ -553,4 +554,59 @@ public CompletableFuture<LatLonBounds> getBounds() {
  public void setClusteringRenderer(String customRenderer) {
  this.getElement().setProperty("customRenderer", customRenderer);
  }
+
+ /**
+ * Adds a GoogleMapIdleEvent listener. The listener is called when the map is in idle state (after
+ * pan or zoom)
+ * 
+ * @param listener
+ * @return
+ */
+ public Registration addMapIdleListener(ComponentEventListener<GoogleMapIdleEvent> listener) {
+ DomListenerRegistration registration =
+ this.getElement().addEventListener("google-map-idle", ev -> {
+ listener.onComponentEvent(new GoogleMapIdleEvent(this, true));
+ });
+ return registration::remove;
+ }
+
+ public static class GoogleMapIdleEvent extends ComponentEvent<GoogleMap> {
+ public GoogleMapIdleEvent(GoogleMap source, boolean fromClient) {
+ super(source, true);
+ }
+ }
+
+ /**
+ * Adds a GoogleMapBoundsChangedEvent listener. The listener is called when the map is moved or
+ * zoomed
+ * 
+ * @param listener
+ * @return
+ */
+ public Registration addGoogleMapBoundsChangedListener(
+ ComponentEventListener<GoogleMapBoundsChangedEvent> listener) {
+
+ DomListenerRegistration registration =
+ this.getElement().addEventListener("google-map-bounds_changed", ev -> {
+ listener.onComponentEvent(new GoogleMapBoundsChangedEvent(this, true,
+ new LatLonBounds(ev.getEventData().get("event.detail"))));
+ }).debounce(1000, DebouncePhase.TRAILING).addEventData("event.detail");
+ return registration::remove;
+ }
+
+ public static class GoogleMapBoundsChangedEvent extends ComponentEvent<GoogleMap> {
+
+ private final LatLonBounds bounds;
+
+ public GoogleMapBoundsChangedEvent(GoogleMap source, boolean fromClient,
+ LatLonBounds latLonBounds) {
+ super(source, true);
+ this.bounds = latLonBounds;
+ }
+
+ public LatLonBounds getBounds() {
+ return bounds;
+ }
+ }
+
 }