src/app/common/portrait/portrait.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, EventEmitter, Input, OnDestroy, Output} from '@angular/core';
import {DomSanitizer, SafeUrl} from '@angular/platform-browser';

export type PORTRAIT_SIZE = 'small' | 'medium' | 'large';

@Component({
  selector: 'fims-portrait',
  templateUrl: './portrait.component.html',
  styleUrls: ['./portrait.component.scss']
})
export class PortraitComponent implements OnDestroy {

  private defaultUrl = './assets/images/ic_account_circle_black_48dp_2x.png';

  private objectUrl: string;

  @Input() set blob(blob: Blob) {
    if (blob) {
      this.objectUrl = URL.createObjectURL(blob);
    } else {
      this.objectUrl = this.defaultUrl;
    }
  };

  @Input() size: PORTRAIT_SIZE = 'medium';

  @Input() tooltip: string;

  @Output() onClick = new EventEmitter();

  constructor(private domSanitizer: DomSanitizer) {}

  ngOnDestroy(): void {
    if (this.objectUrl) {
      URL.revokeObjectURL(this.objectUrl);
    }
  }

  get safeUrl(): SafeUrl {
    return this.objectUrl ? this.domSanitizer.bypassSecurityTrustUrl(this.objectUrl) : undefined;
  }

  clickPortrait(event: MouseEvent): void {
    event.preventDefault();
    this.onClick.emit();
  }

}