From e0b9c572ecc64903ac67509add488e6e0f38e761 Mon Sep 17 00:00:00 2001
From: axpoems <145597137+axpoems@users.noreply.github.com>
Date: Sat, 7 Sep 2024 20:13:13 +0200
Subject: [PATCH] Only show vertical scrollbar if not enough space

---
 .../reactions_box/ReactionUsersPopup.java     | 20 ++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/apps/desktop/desktop/src/main/java/bisq/desktop/main/content/chat/message_container/list/reactions_box/ReactionUsersPopup.java b/apps/desktop/desktop/src/main/java/bisq/desktop/main/content/chat/message_container/list/reactions_box/ReactionUsersPopup.java
index 56c3e2df65..e5ac0890e7 100644
--- a/apps/desktop/desktop/src/main/java/bisq/desktop/main/content/chat/message_container/list/reactions_box/ReactionUsersPopup.java
+++ b/apps/desktop/desktop/src/main/java/bisq/desktop/main/content/chat/message_container/list/reactions_box/ReactionUsersPopup.java
@@ -30,7 +30,12 @@
 import javafx.geometry.Bounds;
 import javafx.geometry.Pos;
 import javafx.scene.Node;
-import javafx.scene.control.*;
+import javafx.scene.control.ContentDisplay;
+import javafx.scene.control.Label;
+import javafx.scene.control.ListCell;
+import javafx.scene.control.ListView;
+import javafx.scene.control.PopupControl;
+import javafx.scene.control.Skin;
 import javafx.scene.image.ImageView;
 import javafx.scene.layout.HBox;
 import javafx.scene.layout.StackPane;
@@ -101,6 +106,8 @@ private void initialize() {
                 hide();
             }
         });
+
+        maybeHideScrollbar();
     }
 
     private void showPopup() {
@@ -142,6 +149,17 @@ private boolean hasMouseExited(double mouseX, double mouseY) {
         return !(inPopupBounds || inAreaBetweenButtonAndPopup);
     }
 
+    private void maybeHideScrollbar() {
+        String hideScrollbarClass = "hide-vertical-scrollbar";
+        if (userProfileListView.getItems().size() <= MAX_USERS_SHOWN_AT_THE_SAME_TIME) {
+            if (!userProfileListView.getStyleClass().contains(hideScrollbarClass)) {
+                userProfileListView.getStyleClass().add(hideScrollbarClass);
+            }
+        } else {
+            userProfileListView.getStyleClass().remove(hideScrollbarClass);
+        }
+    }
+
     private Callback<ListView<ListItem>, ListCell<ListItem>> getCellFactory() {
         return new Callback<>() {
             @Override