function popup

// itemview typescript

// functions popup
  functionsListDataSource : object[] = [{"listName":"exampleFuntionName"}];
  popupListFunctionsVisible : boolean = false ;


onFunctionBtnClick(){
    this.popupListFunctionsVisible = true;
  }

  onFunctionsListSelectItem(e){
    let funcName : string  = e.itemData.listName ;

    switch(funcName){
      case "exampleFuntionName":
      this.exampleFuntion();
      break;
    }

  }

  exampleFuntion(){
    var result = confirm("Are you sure you want to execute function?", "Confirm execute");
    result.then((dialogResult) => {
        if(dialogResult){
         // to do when confirm
     }
    });
  }
// itemview html

<app-list-with-search-bar
          [dataSource]="functionsListDataSource"
          (selectItem)="onFunctionsListSelectItem($event)"
          [(popupVisible)]="popupListFunctionsVisible">
</app-list-with-search-bar>