ambari-logsearch/ambari-logsearch-web/src/app/modules/shared/components/modal-dialog/modal-dialog.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,
  AfterViewInit,
  Input,
  Output,
  EventEmitter,
  ViewChild,
  ChangeDetectorRef,
  ElementRef
} from '@angular/core';

@Component({
  selector: 'modal-dialog',
  templateUrl: './modal-dialog.component.html',
  styleUrls: ['./modal-dialog.component.less']
})
export class ModalDialogComponent implements AfterViewInit {

  @Input()
  title: string;

  @Input()
  extraCssClass: string;

  @Input()
  showCloseBtn = true;

  @Input()
  showBackdrop = true;

  @Input()
  closeOnBackdropClick = true;

  @Input()
  visible = false;

  @Output()
  onCloseRequest: EventEmitter<MouseEvent> =  new EventEmitter();

  @ViewChild('header')
  headerElementRef: ElementRef;

  showHeader = true;

  @ViewChild('footer')
  footerElementRef: ElementRef;

  showFooter = true;

  constructor(private cdRef: ChangeDetectorRef) { }

  ngAfterViewInit() {
    let totalBuiltInHeaderElement = 0;
    if (this.title) {
      totalBuiltInHeaderElement += 1;
    }
    if (this.showCloseBtn) {
      totalBuiltInHeaderElement += 1;
    }
    this.showHeader = this.headerElementRef && (this.headerElementRef.nativeElement.children.length - totalBuiltInHeaderElement > 0);
    this.showFooter = this.footerElementRef && this.footerElementRef.nativeElement.children.length;
    this.cdRef.detectChanges();
  }

  onCloseBtnClick(event: MouseEvent) {
    this.onCloseRequest.emit(event);
  }

  onBackdropClick(event: MouseEvent) {
    if (this.closeOnBackdropClick) {
      this.onCloseRequest.emit(event);
    }
  }

}