Angular google map close info window on new marker click

Question

I am using Angular google map: https://angular-maps.com/. Right now as default functionality, it open the info-window defined inside marker. And on click of any new marker it remains open old window. I need to close info window on click of another marker. This is html code:

<agm-map [latitude]="lat" [longitude]="lng" [zoom]="zoom">
          <agm-marker 
              *ngFor="let m of markers; let i = index"
              (markerClick)="clickedMarker(m.label, infoWindow, i)"
              [latitude]="m.lat"
              [longitude]="m.lng"
              [markerDraggable]="m.draggable"                
              [iconUrl]="m.icon">

            <agm-info-window #infoWindow>
              <strong>{{m.name}}</strong><br>
            </agm-info-window>

          </agm-marker>
        </agm-map>

this is code when marker is clicked:

clickedMarker(label: string, infoWindow, marker, index: number) {
     if( this.infoWindowOpened ===  infoWindow)
      return;

    if(this.infoWindowOpened !== null)
    {
     this.infoWindowOpened.close();
    }
    this.infoWindowOpened = infoWindow;
}

It works when the page refresh. But as soon as I refresh markers variable it show this error:

ERROR TypeError: Cannot read property 'then' of undefined
at InfoWindowManager.close (info-window-manager.js:48)
at AgmInfoWindow.close (info-window.js:94)
at SearchComponent.clickedMarker (search.component.ts:188)

component code to refresh markers:

this.markers.push({
              name: item.Name,  
              lat: parseFloat(item.latitude.toString()),
              lng: parseFloat(item.longitude.toString()),
              draggable: false,      
              icon:'assets/img/marker.png'
            });

Answer 1

You can rewrite your clickedMarker very simple as follows

previous;
...
clickedMarker(infowindow) {
    if (this.previous) {
      this.previous.close();
    }
    this.previous = infowindow;
  }

Make the change to your event binding function in the template

(markerClick)="clickedMarker(infoWindow)"

The live code is here

Answer 2

I have same problem infoWindow is not closing automatically. in my scenario i have two buttons to show favourite and unfavourite icons on map. i'm calling this.infoWindowOpened = null in ngOnInint() on every favourite and unfavourite button click.so it is initialising every click as null. so it is solved my problem.. it may be helpful for others..

    ngOnInit() {
      this._mapService.selectedIcon.subscribe((res) => {
        this.infoWindowOpened = null;            
      });
    }
    if (this.infoWindowOpened === infoWindow)
       return;

    if (this.infoWindowOpened !== null && this.infoWindowOpened !== undefined)
        this.infoWindowOpened.close();

    this.infoWindowOpened = infoWindow;