From 86603dec48bfd185df65ba203730bce7e7079522 Mon Sep 17 00:00:00 2001
From: "Patrik J. Braun" <bra.patrik@gmail.com>
Date: Tue, 21 Mar 2023 20:24:08 +0100
Subject: [PATCH] Fixing scroll hidden issue #587

---
 src/frontend/app/model/page.helper.ts | 11 ++++++-----
 src/frontend/styles.css               |  6 +++---
 2 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/src/frontend/app/model/page.helper.ts b/src/frontend/app/model/page.helper.ts
index 092d9f66..6fd55005 100644
--- a/src/frontend/app/model/page.helper.ts
+++ b/src/frontend/app/model/page.helper.ts
@@ -9,8 +9,8 @@ export class PageHelper {
     return this.supportPageOffset
       ? window.pageYOffset
       : this.isCSS1Compat
-      ? document.documentElement.scrollTop
-      : document.body.scrollTop;
+        ? document.documentElement.scrollTop
+        : document.body.scrollTop;
   }
 
   public static set ScrollY(value: number) {
@@ -33,8 +33,8 @@ export class PageHelper {
     return this.supportPageOffset
       ? window.pageXOffset
       : this.isCSS1Compat
-      ? document.documentElement.scrollLeft
-      : document.body.scrollLeft;
+        ? document.documentElement.scrollLeft
+        : document.body.scrollLeft;
   }
 
   public static showScrollY(): void {
@@ -42,7 +42,8 @@ export class PageHelper {
   }
 
   public static isScrollYVisible(): boolean {
-    return PageHelper.body.style.overflowY === 'scroll';
+    return PageHelper.body.style.overflowY === 'scroll' ||
+      (!PageHelper.body.style.overflowY && document.documentElement.scrollHeight > document.documentElement.clientHeight);
   }
 
   public static hideScrollY(): void {
diff --git a/src/frontend/styles.css b/src/frontend/styles.css
index 5d233337..e07e2bf5 100644
--- a/src/frontend/styles.css
+++ b/src/frontend/styles.css
@@ -1,5 +1,4 @@
 
-
 a {
   text-decoration: none;
 }
@@ -18,7 +17,7 @@ bs-dropdown-container {
 }
 
 /* TODO: remove popover in ngx-bootstrap, bootstrap 5.3-alpha is fixed */
-.bs-popover-top, .bs-popover-bottom{
+.bs-popover-top, .bs-popover-bottom {
   position: absolute;
 }
 
@@ -31,6 +30,7 @@ bs-dropdown-container {
 element.style {
   width: 100px;
 }
-[data-bs-theme=dark] .btn:not(.btn-secondary):not(.btn-danger):not(.btn-warning):not(.btn-primary):not(.btn-success){
+
+[data-bs-theme=dark] .btn:not(.btn-secondary):not(.btn-danger):not(.btn-warning):not(.btn-primary):not(.btn-success) {
   --bs-btn-color: var(--bs-body-color);
 }