added multiple download support

lazy loaded images now reload after a new download

src/app/download-item/download-item.component.html

@@ -0,0 +1,16 @@
+<div>
+    <mat-grid-list [rowHeight]="50" [cols]="24">
+        <mat-grid-tile [colspan]="2">
+            <h5 style="display: inline-block; margin-right: 5px; position: relative; top: 5px;">{{queueNumber}}.</h5>
+        </mat-grid-tile>
+        <mat-grid-tile [colspan]="6">
+            <div style="display: inline-block; text-align: center;">ID: {{url_id}}</div>
+        </mat-grid-tile>
+        <mat-grid-tile [colspan]="13">
+                <mat-progress-bar style="width: 80%" [value]="download.percent_complete" [mode]="(download.percent_complete === 0) ? 'indeterminate' : 'determinate'"></mat-progress-bar>
+        </mat-grid-tile>
+        <mat-grid-tile [colspan]="3">
+            <button (click)="cancelTheDownload()" mat-icon-button color="warn"><mat-icon fontSet="material-icons-outlined">cancel</mat-icon></button>
+        </mat-grid-tile>
+    </mat-grid-list>
+</div>

src/app/download-item/download-item.component.spec.ts

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+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { DownloadItemComponent } from './download-item.component';
+
+describe('DownloadItemComponent', () => {
+  let component: DownloadItemComponent;
+  let fixture: ComponentFixture<DownloadItemComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [ DownloadItemComponent ]
+    })
+    .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(DownloadItemComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

src/app/download-item/download-item.component.ts

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+import { Component, OnInit, Output, EventEmitter, Input } from '@angular/core';
+import { Download } from 'app/main/main.component';
+
+
+@Component({
+  selector: 'app-download-item',
+  templateUrl: './download-item.component.html',
+  styleUrls: ['./download-item.component.scss']
+})
+export class DownloadItemComponent implements OnInit {
+
+  @Input() download: Download = {
+    uid: null,
+    type: 'audio',
+    percent_complete: 0,
+    url: 'http://youtube.com/watch?v=17848rufj',
+    downloading: true,
+    is_playlist: false
+  };
+  @Output() cancelDownload = new EventEmitter<Download>();
+
+  @Input() queueNumber = null;
+
+  url_id = null;
+
+  constructor() { }
+
+  ngOnInit() {
+    if (this.download && this.download.url && this.download.url.includes('youtube')) {
+      const string_id = (this.download.is_playlist ? '?list=' : '?v=')
+      const index_offset = (this.download.is_playlist ? 6 : 3);
+      const end_index = this.download.url.indexOf(string_id) + index_offset;
+      this.url_id = this.download.url.substring(end_index, this.download.url.length);
+    }
+  }
+
+  cancelTheDownload() {
+    this.cancelDownload.emit(this.download);
+  }
+
+}