metron-interface/metron-alerts/src/app/shared/list-group/list-group.component.ts

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 { Component, OnInit, Input, HostListener, ElementRef } from '@angular/core';

export interface ListGroupComponentData {
  name: string;
  icon?: string;
}

@Component({
  selector: 'metron-list-group',
  templateUrl: './list-group.component.html',
  styleUrls: ['./list-group.component.scss']
})
export class ListGroupComponent implements OnInit {

  @Input() data: ListGroupComponentData[] = [];

  constructor(private element: ElementRef) { }

  ngOnInit() {
  }

  @HostListener('click', ['$event']) onClick($event) {
    this.element.nativeElement.getElementsByClassName('active')[0].classList.remove('active');
    if ($event.target.nodeName === 'LI') {
      $event.target.classList.add('active');
    } else {
      $event.target.parentNode.classList.add('active');
    }
  }
}