import { NgForm } from "@angular/forms";
import { ComponentCanDeactivate } from "./component-can-deactivate";

export abstract class FormCanDeactivate extends ComponentCanDeactivate {

    abstract get form(): NgForm;

    canDeactivate(): boolean {
        if (this.form !== undefined) {
            return this.form.submitted || !this.form.dirty;
        } else {
            return true;
        }
    }
}