feat: fire google-map-bounds_changed event when map bounds change

FlowingCode · Oct 3, 2023 · 45cb54c · 45cb54c
1 parent 013bd71
commit 45cb54c
Showing 1 changed file with 10 additions and 0 deletions.
diff --git a/google-map.js b/google-map.js
@@ -171,6 +171,12 @@ Polymer({
    * @event google-map-idle
    */
 
+  /**
+   * Fired when the viewport lat/lng bounds change. 
+   *
+   * @event google-map-bounds_changed
+   */
+
   /**
    * Polymer properties for the google-map custom element.
    */
@@ -999,6 +1005,10 @@ Polymer({
     this._dragEventsChanged();
     this._mouseEventsChanged();
     this._idleEvent();
+
+    google.maps.event.addListener(this.map, 'bounds_changed', () => {
+      this.fire('google-map-bounds_changed', this.map.getBounds());
+    });
   },
 
   _clearListener(name) {