constructor(private location: PlatformLocation,
    private _dialog: DialogService,
    private router: Router) { }

open() {
    this.showDialog = true;
    const body = document.body;
    body.classList.add('cell-modal-open');
}

close() {
    this.dialog = undefined;
}

private handleDialog(d: Dialog) {
    if (!d) {
        this.close();
    } else if (d.template) {
        if (this.showDialog) {
            this.close();
        }
        this.dialog = d;
        this.open();
    }
}

ngOnInit() {
    this.subscription = this
        ._dialog
        .getDialog()
        .subscribe({
            next: (d) => { this.handleDialog(d); console.log('subscribed dialog') },
            error: (err) => this.handleDialogError(err)
        });
    this.initialiseRoutingEventListeners();
}

private d: Dialog = { template: null, size: DialogSizeEnum.XLarge };
private dialogSubject = new BehaviorSubject<Dialog>({ template: null, size: DialogSizeEnum.XLarge });

constructor() { }

showDialog(template: TemplateRef<any>, size = DialogSizeEnum.XLarge, requiresAction = false) {
    Object.assign(this.d, { template: template, size: size, requiresAction: requiresAction });
    if (this.d !== null) {
        this.dialogSubject.next(this.d);
    }
}

getDialog(): BehaviorSubject<Dialog> {
    return this.dialogSubject;
}

clear() {
    this.dialogSubject.next(null);
}