From 92859462c81d9bb5e79b3bc78a4b9233a01e118c Mon Sep 17 00:00:00 2001
From: Dan Percic <dan@devplant.ro>
Date: Fri, 11 Mar 2022 14:27:24 +0200
Subject: [PATCH] fix getPageCount called before documentLoaded

---
 .../file-preview-screen/services/pdf-viewer.service.ts     | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/apps/red-ui/src/app/modules/dossier/screens/file-preview-screen/services/pdf-viewer.service.ts b/apps/red-ui/src/app/modules/dossier/screens/file-preview-screen/services/pdf-viewer.service.ts
index 78ca8cb3f..640e6f6d8 100644
--- a/apps/red-ui/src/app/modules/dossier/screens/file-preview-screen/services/pdf-viewer.service.ts
+++ b/apps/red-ui/src/app/modules/dossier/screens/file-preview-screen/services/pdf-viewer.service.ts
@@ -85,7 +85,12 @@ export class PdfViewer {
     }
 
     private get _totalInternalPages() {
-        return this.documentViewer?.getPageCount() ?? 1;
+        try {
+            return this.documentViewer?.getPageCount() ?? 1;
+        } catch {
+            // might throw Error: getPageCount was called before the 'documentLoaded' event
+            return 1;
+        }
     }
 
     hideAnnotations(annotations: Annotation[]): void {