[ADF-5339] ESCAPE should close opened dialog not the overlay viewer (#6696)

* don't close viewer if Escape was performed on opened dialog

* subscribe only in overlayMode

* tests

* lint

* move logic to method

lib/core/viewer/components/viewer.component.spec.ts

@@ -30,6 +30,8 @@ import { AlfrescoApiServiceMock } from '../../mock/alfresco-api.service.mock';
 import { NodeEntry, VersionEntry } from '@alfresco/js-api';
 import { CoreTestingModule } from '../../testing/core.testing.module';
 import { TranslateModule } from '@ngx-translate/core';
+import { MatDialog } from '@angular/material/dialog';
+import { NoopAnimationsModule } from '@angular/platform-browser/animations';
 
 @Component({
     selector: 'adf-viewer-container-toolbar',
@@ -72,6 +74,13 @@ class ViewerWithCustomToolbarActionsComponent {
 class ViewerWithCustomSidebarComponent {
 }
 
+@Component({
+    selector: 'adf-dialog-dummy',
+    template: ``
+})
+class DummyDialogComponent {
+}
+
 @Component({
     selector: 'adf-viewer-container-open-with',
     template: `
@@ -126,9 +135,11 @@ describe('ViewerComponent', () => {
     let fixture: ComponentFixture<ViewerComponent>;
     let alfrescoApiService: AlfrescoApiService;
     let element: HTMLElement;
+    let dialog: MatDialog;
 
     setupTestBed({
         imports: [
+            NoopAnimationsModule,
             TranslateModule.forRoot(),
             CoreTestingModule
         ],
@@ -149,7 +160,8 @@ describe('ViewerComponent', () => {
                 }
             },
             RenderingQueueServices,
-            { provide: Location, useClass: SpyLocation }
+            { provide: Location, useClass: SpyLocation },
+            MatDialog
         ]
     });
 
@@ -159,6 +171,7 @@ describe('ViewerComponent', () => {
         component = fixture.componentInstance;
 
         alfrescoApiService = TestBed.inject(AlfrescoApiService);
+        dialog = TestBed.inject(MatDialog);
     });
 
     describe('Extension Type Test', () => {
@@ -776,7 +789,7 @@ describe('ViewerComponent', () => {
                 });
 
                 it('should Esc button hide the viewer', (done) => {
-                    EventMock.keyUp(27);
+                    EventMock.keyDown(27);
                     fixture.detectChanges();
 
                     fixture.whenStable().then(() => {
@@ -784,6 +797,27 @@ describe('ViewerComponent', () => {
                         done();
                     });
                 });
+
+                it('should not close the viewer on Escape event if dialog was opened', (done) => {
+                    const event = new KeyboardEvent('keydown', {
+                        bubbles: true,
+                        keyCode: 27
+                    } as KeyboardEventInit );
+                    const dialogRef = dialog.open(DummyDialogComponent);
+
+                    dialogRef.afterClosed().subscribe(() => {
+                        document.body.dispatchEvent(event);
+                        fixture.detectChanges();
+                        expect(element.querySelector('.adf-viewer-content')).toBeNull();
+                        done();
+                    });
+
+                    fixture.detectChanges();
+
+                    document.body.dispatchEvent(event);
+                    fixture.detectChanges();
+                    expect(element.querySelector('.adf-viewer-content')).not.toBeNull();
+                });
             });
 
             describe('Overlay mode false', () => {

lib/core/viewer/components/viewer.component.ts

@@ -28,10 +28,11 @@ import { ViewerMoreActionsComponent } from './viewer-more-actions.component';
 import { ViewerOpenWithComponent } from './viewer-open-with.component';
 import { ViewerSidebarComponent } from './viewer-sidebar.component';
 import { ViewerToolbarComponent } from './viewer-toolbar.component';
-import { Subscription } from 'rxjs';
+import { fromEvent, Subject } from 'rxjs';
 import { ViewUtilService } from '../services/view-util.service';
 import { AppExtensionService, ViewerExtensionRef } from '@alfresco/adf-extensions';
-import { filter } from 'rxjs/operators';
+import { filter, skipWhile, takeUntil } from 'rxjs/operators';
+import { MatDialog } from '@angular/material/dialog';
 
 @Component({
     selector: 'adf-viewer',
@@ -224,8 +225,6 @@ export class ViewerComponent implements OnChanges, OnInit, OnDestroy {
 
     private cacheBusterNumber;
 
-    private subscriptions: Subscription[] = [];
-
     // Extensions that are supported by the Viewer without conversion
     private extensions = {
         image: ['png', 'jpg', 'jpeg', 'gif', 'bpm', 'svg'],
@@ -242,11 +241,16 @@ export class ViewerComponent implements OnChanges, OnInit, OnDestroy {
         media: ['video/mp4', 'video/webm', 'video/ogg', 'audio/mpeg', 'audio/mp3', 'audio/ogg', 'audio/wav']
     };
 
+    private onDestroy$ = new Subject<boolean>();
+    private shouldCloseViewer = true;
+    private keyDown$ = fromEvent<KeyboardEvent>(document, 'keydown');
+
     constructor(private apiService: AlfrescoApiService,
                 private viewUtilService: ViewUtilService,
                 private logService: LogService,
                 private extensionService: AppExtensionService,
-                private el: ElementRef) {
+                private el: ElementRef,
+                public dialog: MatDialog) {
         viewUtilService.maxRetries = this.maxRetries;
     }
 
@@ -255,23 +259,20 @@ export class ViewerComponent implements OnChanges, OnInit, OnDestroy {
     }
 
     ngOnInit() {
-        this.subscriptions.push(
-            this.apiService.nodeUpdated.pipe(
-                filter((node) => node && node.id === this.nodeId && node.name !== this.fileName)
-            ).subscribe((node) => this.onNodeUpdated(node))
-        );
+        this.apiService.nodeUpdated.pipe(
+            filter((node) => node && node.id === this.nodeId && node.name !== this.fileName),
+            takeUntil(this.onDestroy$)
+        ).subscribe((node) => this.onNodeUpdated(node));
 
-        this.subscriptions.push(
-            this.viewUtilService.viewerTypeChange.subscribe((type: string) => {
-                this.viewerType = type;
-            })
-        );
-        this.subscriptions.push(
-            this.viewUtilService.urlFileContentChange.subscribe((content: string) => {
-                this.urlFileContent = content;
-            })
-        );
+        this.viewUtilService.viewerTypeChange.pipe(takeUntil(this.onDestroy$)).subscribe((type: string) => {
+            this.viewerType = type;
+        });
 
+        this.viewUtilService.urlFileContentChange.pipe(takeUntil(this.onDestroy$)).subscribe((content: string) => {
+            this.urlFileContent = content;
+        });
+
+        this.closeOverlayManager();
         this.loadExtensions();
     }
 
@@ -284,8 +285,8 @@ export class ViewerComponent implements OnChanges, OnInit, OnDestroy {
     }
 
     ngOnDestroy() {
-        this.subscriptions.forEach((subscription) => subscription.unsubscribe());
-        this.subscriptions = [];
+        this.onDestroy$.next(true);
+        this.onDestroy$.complete();
     }
 
     private onNodeUpdated(node: Node) {
@@ -591,11 +592,6 @@ export class ViewerComponent implements OnChanges, OnInit, OnDestroy {
 
         const key = event.keyCode;
 
-        // Esc
-        if (key === 27 && this.overlayMode) { // esc
-            this.close();
-        }
-
         // Left arrow
         if (key === 37 && this.canNavigateBefore) {
             event.preventDefault();
@@ -682,6 +678,30 @@ export class ViewerComponent implements OnChanges, OnInit, OnDestroy {
         this.viewerType = 'unknown';
     }
 
+    private closeOverlayManager() {
+        this.dialog.afterOpened.pipe(
+            skipWhile(() => !this.overlayMode),
+            takeUntil(this.onDestroy$)
+        ).subscribe(() => this.shouldCloseViewer = false);
+
+        this.dialog.afterAllClosed.pipe(
+            skipWhile(() => !this.overlayMode),
+            takeUntil(this.onDestroy$)
+        ).subscribe(() => this.shouldCloseViewer = true);
+
+        this.keyDown$.pipe(
+            skipWhile(() => !this.overlayMode),
+            filter((e: KeyboardEvent) => e.keyCode === 27),
+            takeUntil(this.onDestroy$)
+        ).subscribe( (event: KeyboardEvent) => {
+            event.preventDefault();
+
+            if (this.shouldCloseViewer) {
+                this.close();
+            }
+        });
+    }
+
     private generateCacheBusterNumber() {
         this.cacheBusterNumber = Date.now();
     }