From d32daf016e0eeb15f4711f0caf7e9f9111e4b693 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Adina=20=C8=9Aeudan?= <adina@devplant.ro>
Date: Tue, 5 Jan 2021 20:18:26 +0200
Subject: [PATCH] Save page-number as QueryParam in URL

---
 .../file-preview-screen.component.ts               | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/apps/red-ui/src/app/screens/file/file-preview-screen/file-preview-screen.component.ts b/apps/red-ui/src/app/screens/file/file-preview-screen/file-preview-screen.component.ts
index 79d3bfdc1..82a03ddf3 100644
--- a/apps/red-ui/src/app/screens/file/file-preview-screen/file-preview-screen.component.ts
+++ b/apps/red-ui/src/app/screens/file/file-preview-screen/file-preview-screen.component.ts
@@ -428,6 +428,14 @@ export class FilePreviewScreenComponent implements OnInit, OnDestroy {
         if (typeof $event === 'number') {
             this._scrollViews();
             this.shouldDeselectAnnotationsOnPageChange = true;
+
+            // Add current page in URL query params
+            this._router.navigate([], {
+                queryParams: {
+                    page: $event
+                },
+                queryParamsHandling: 'merge'
+            });
             this._changeDetectorRef.detectChanges();
         }
     }
@@ -439,6 +447,12 @@ export class FilePreviewScreenComponent implements OnInit, OnDestroy {
         if (!this.fileData.redactedFileData) {
             this._fileDownloadService.loadRedactedView(this.fileData);
         }
+
+        // Go to initial page from query params
+        const pageNumber = this._activatedRoute.snapshot.queryParams.page;
+        if (pageNumber) {
+            this.selectPage(parseInt(pageNumber, 10));
+        }
     }
 
     filtersChanged(filters: FilterModel[]) {