feat: integrate Radix UI scroll area component and update message list view

web/package.json

@@ -18,6 +18,7 @@
   },
   "dependencies": {
     "@ant-design/icons": "^6.0.0",
+    "@radix-ui/react-scroll-area": "^1.2.4",
     "@radix-ui/react-slot": "^1.2.0",
     "@radix-ui/react-tabs": "^1.1.4",
     "@radix-ui/react-tooltip": "^1.2.0",

web/src/app/_components/message-list-view.tsx

@@ -68,7 +68,7 @@ export function MessageListView({
   return (
     <ScrollContainer
       className={cn(
-        "flex h-full w-full flex-col overflow-y-auto pt-4",
+        "flex h-full w-full flex-col overflow-hidden pt-4",
         className,
       )}
       scrollShadowColor="#f7f5f3"

web/src/app/_components/scroll-container.tsx

@@ -3,6 +3,7 @@
 
 import { useStickToBottom } from "use-stick-to-bottom";
 
+import { ScrollArea } from "~/components/ui/scroll-area";
 import { cn } from "~/lib/utils";
 
 export function ScrollContainer({
@@ -47,11 +48,11 @@ export function ScrollContainer({
           ></div>
         </>
       )}
-      <div ref={scrollRef} className={"h-full w-full overflow-y-scroll"}>
+      <ScrollArea ref={scrollRef} className="h-full w-full">
         <div className="h-fit w-full" ref={contentRef}>
           {children}
         </div>
-      </div>
+      </ScrollArea>
     </div>
   );
 }

web/src/components/ui/scroll-area.tsx

@@ -0,0 +1,61 @@
+"use client";
+
+import * as ScrollAreaPrimitive from "@radix-ui/react-scroll-area";
+import * as React from "react";
+
+import { cn } from "~/lib/utils";
+
+function ScrollArea({
+  className,
+  children,
+  ref,
+  ...props
+}: React.ComponentProps<typeof ScrollAreaPrimitive.Root>) {
+  return (
+    <ScrollAreaPrimitive.Root
+      data-slot="scroll-area"
+      className={cn("relative", className)}
+      {...props}
+    >
+      <ScrollAreaPrimitive.Viewport
+        data-slot="scroll-area-viewport"
+        className="focus-visible:ring-ring/50 size-full rounded-[inherit] transition-[color,box-shadow] outline-none focus-visible:ring-[3px] focus-visible:outline-1"
+        // https://github.com/stackblitz-labs/use-stick-to-bottom/issues/15
+        ref={ref}
+      >
+        {children}
+      </ScrollAreaPrimitive.Viewport>
+      <ScrollBar />
+      <ScrollAreaPrimitive.Corner />
+    </ScrollAreaPrimitive.Root>
+  );
+}
+
+function ScrollBar({
+  className,
+  orientation = "vertical",
+  ...props
+}: React.ComponentProps<typeof ScrollAreaPrimitive.ScrollAreaScrollbar>) {
+  return (
+    <ScrollAreaPrimitive.ScrollAreaScrollbar
+      data-slot="scroll-area-scrollbar"
+      orientation={orientation}
+      className={cn(
+        "flex touch-none p-px transition-colors select-none",
+        orientation === "vertical" &&
+          "h-full w-2.5 border-l border-l-transparent",
+        orientation === "horizontal" &&
+          "h-2.5 flex-col border-t border-t-transparent",
+        className,
+      )}
+      {...props}
+    >
+      <ScrollAreaPrimitive.ScrollAreaThumb
+        data-slot="scroll-area-thumb"
+        className="bg-border relative flex-1 rounded-full"
+      />
+    </ScrollAreaPrimitive.ScrollAreaScrollbar>
+  );
+}
+
+export { ScrollArea, ScrollBar };