[ACS-5600] AlfrescoViewerComponent shows the original mimetype (#9095)

* [ACS-5600]Changes for bug

* [ACS-5600]Changes for bug fixes

* [5600]fixed the space

* [ACS-5600] modified the variable name

* [ACS-5600]Implemented the review comments

* [ACS-5600]modified the test cases

* [ACS-5600] modified the test cases

* [ACS-5600]modified the changes

* [ci:force]

lib/content-services/src/lib/viewer/components/alfresco-viewer.component.html

@@ -18,6 +18,7 @@
     [sidebarLeftTemplateContext]="sidebarLeftTemplateContext"
     [fileName]="fileName"
     [mimeType]="mimeType"
+    [originalMimeType]="originalMimeType"
     [urlFile]="urlFileContent"
     [tracks]="tracks"
     [readOnly]="readOnly"

lib/content-services/src/lib/viewer/components/alfresco-viewer.component.spec.ts

@@ -476,6 +476,42 @@ describe('AlfrescoViewerComponent', () => {
         //
     });
 
+    describe('originalMimeType', () => {
+        it('should set originalMimeType based on nodeData content', async () => {
+            const defaultNode: Node = {
+                id: 'mock-id',
+                name: 'Mock Node',
+                nodeType: 'cm:content',
+                isFolder: false,
+                isFile: true,
+                modifiedAt: new Date(),
+                modifiedByUser: { id: 'user123', displayName: 'John Doe' },
+                createdAt: new Date(),
+                createdByUser: { id: 'user456', displayName: 'Jane Doe' },
+                properties: { 'cm:versionLabel': 'mock-version-label' }
+            };
+            component.nodeEntry = { entry: defaultNode };
+            component.nodeId = '123';
+            spyOn(renditionService, 'getNodeRendition').and.returnValue(
+                Promise.resolve({
+                    url: '',
+                    mimeType: ''
+                })
+            );
+
+            fixture.detectChanges();
+            nodesApiService.nodeUpdated.next({
+                id: '123',
+                name: 'file2',
+                content: {
+                    mimeType: 'application/msWord'
+                }
+            } as any);
+            await fixture.whenStable();
+            expect(component.originalMimeType).toEqual('application/msWord');
+        });
+    });
+
     describe('Toolbar', () => {
         it('should show only next file button', async () => {
             component.allowNavigate = true;

lib/content-services/src/lib/viewer/components/alfresco-viewer.component.ts

@@ -192,6 +192,7 @@ export class AlfrescoViewerComponent implements OnChanges, OnInit, OnDestroy {
     urlFileContent: string;
     fileName: string;
     mimeType: string;
+    originalMimeType: string;
     nodeEntry: NodeEntry;
     tracks: Track[] = [];
     readOnly: boolean = true;
@@ -328,6 +329,7 @@ export class AlfrescoViewerComponent implements OnChanges, OnInit, OnDestroy {
             if (nodeRendition) {
                 urlFileContent = nodeRendition.url;
                 mimeType = nodeRendition.mimeType;
+                this.originalMimeType = nodeData?.content?.mimeType;
             }
         } else if (viewerType === 'media') {
             this.tracks = await this.renditionService.generateMediaTracksRendition(this.nodeId);