Asymmetrik/mean2-starter

import { Injectable } from '@angular/core';

import { Observable } from 'rxjs/Observable';
import { BsModalRef, BsModalService } from 'ngx-bootstrap';

import { AsyModalComponent } from './asy-modal.component';

export enum ModalAction { OK = 0, CANCEL }

@Injectable()
export class ModalService {

    private modalRef: BsModalRef;

    constructor(
        private modalService: BsModalService
    ) {}

    alert(title: string, message: string, okText?: string): Observable<ModalAction> {
        this.showModalHelper(title, message, okText);
        this.modalRef.content.cancelText = null;
        return this.modalRef.content.onClose;
    }

    confirm(title: string, message: string, okText?: string): Observable<ModalAction> {
        this.showModalHelper(title, message, okText);
        return this.modalRef.content.onClose;
    }

    private showModalHelper(title: string, message: string, okText?: string) {
        this.modalRef = this.modalService.show(AsyModalComponent, { ignoreBackdropClick: true, class: 'modal-lg' });
        this.modalRef.content.title = title;
        this.modalRef.content.message = message;

        if (null != okText) {
            this.modalRef.content.okText = okText;
        }
    }
}