/*!
 * @license
 * Copyright 2019 Alfresco Software, Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import { ErrorStateMatcher } from '@angular/material';
import { FormControl, FormGroupDirective, NgForm } from '@angular/forms';

export class LiveErrorStateMatcher implements ErrorStateMatcher {

    isErrorState(control: FormControl | null, form: FormGroupDirective | NgForm | null): boolean {
        const isSubmitted = form && form.submitted;
        return !!(control && control.invalid && (control.dirty || control.touched || (!control.pristine && isSubmitted)));
    }

}