modal.service.ts

import { autoinject } from "aurelia-dependency-injection";
import { Router } from "aurelia-router";
import { ObserverLocator } from "aurelia-binding";
declare var $: any;

@autoinject()
export class ModalService {

    constructor( private router: Router, private observerLocator: ObserverLocator ) {
        this.observeRouterNavigation();
    }

    public closeModal() {
        $(".lean-overlay").trigger("click");
    }

    private observeRouterNavigation() {
        this.observerLocator
            .getObserver(this.router, "isNavigating")
            .subscribe(( newValue: boolean, oldValue: boolean ) => {
                if ( !newValue ) {
                    this.closeModal();
                }
            });
    }
}