Angular 4 Confirm Directive

I'm trying to create a directive for jQuery Confirm in Angular 4. However, I'm having a hard time stopping binded events happening. Here is my structure:

menus.component.html:

<a (click)="delete(menu)" class="btn" confirm><i class="icon-trash"></i></a>

menus.component.ts:

delete(menu: Menu): void {
    this.menuService.delete(menu.id)
        .subscribe(
            error =>  this.errorMessage = <any>error);
}

confirm.directive.ts:

import {Directive, ElementRef, Input} from '@angular/core';

@Directive({ selector: '[confirm]' })
export class ConfirmDirective {
    constructor(el: ElementRef) {
        $(el.nativeElement).on('click', function () {
            $(this).confirm({
                confirm: function () {
                    return true;
                }
            });

            return false;
        });
    }
}

Confirmation box does appear, but the event is fired before it, so it is useless. I want this directive to stop an event from firing, fire it if the action is confirmed, cancel it otherwise.

You can actually combine directive name and output together.

 <button class="btn" (confirm)="delete()">delete</button>

 @Directive({
   selector: '[confirm]'
 }) 
 export class ConfirmDirective {
   @Output() confirm = new EventEmitter<any>();

   constructor(private el: ElementRef) {
   }

   @HostListener('click')
    onClick() {
      $.confirm({
      buttons: {
     confirm: () => this.confirm.emit()
   }
  });
 }
}