51:I[707087,["/_next/static/immutable/chunks/2985g-hklwiee.js","/_next/static/immutable/chunks/0qkc3dps_9x_i.js","/_next/static/immutable/chunks/2nvof3-29tvc3.js","/_next/static/immutable/chunks/3thksmxn95rly.js","/_next/static/immutable/chunks/15bpbjna9-vr3.js","/_next/static/immutable/chunks/3tjobt77z_9dj.js","/_next/static/immutable/chunks/0agonoz1szsjm.js","/_next/static/immutable/chunks/1ynd3dcge2kn1.js","/_next/static/immutable/chunks/0krdn-21gkgjt.js","/_next/static/immutable/chunks/0n9w9riw96l80.js","/_next/static/immutable/chunks/0w75qangey2ys.js","/_next/static/immutable/chunks/1tge7vcvsb70s.js","/_next/static/immutable/chunks/35ju_ac0ysz07.js"],"RegistryDependencies"] 52:I[512940,["/_next/static/immutable/chunks/2985g-hklwiee.js","/_next/static/immutable/chunks/0qkc3dps_9x_i.js","/_next/static/immutable/chunks/2nvof3-29tvc3.js","/_next/static/immutable/chunks/3thksmxn95rly.js","/_next/static/immutable/chunks/15bpbjna9-vr3.js","/_next/static/immutable/chunks/3tjobt77z_9dj.js","/_next/static/immutable/chunks/0agonoz1szsjm.js","/_next/static/immutable/chunks/1ynd3dcge2kn1.js","/_next/static/immutable/chunks/0krdn-21gkgjt.js","/_next/static/immutable/chunks/0n9w9riw96l80.js","/_next/static/immutable/chunks/0w75qangey2ys.js","/_next/static/immutable/chunks/1tge7vcvsb70s.js","/_next/static/immutable/chunks/35ju_ac0ysz07.js"],"Installation"] 53:I[314491,["/_next/static/immutable/chunks/2985g-hklwiee.js","/_next/static/immutable/chunks/0qkc3dps_9x_i.js","/_next/static/immutable/chunks/2nvof3-29tvc3.js","/_next/static/immutable/chunks/3thksmxn95rly.js","/_next/static/immutable/chunks/15bpbjna9-vr3.js","/_next/static/immutable/chunks/3tjobt77z_9dj.js","/_next/static/immutable/chunks/0agonoz1szsjm.js","/_next/static/immutable/chunks/1ynd3dcge2kn1.js","/_next/static/immutable/chunks/0krdn-21gkgjt.js","/_next/static/immutable/chunks/0n9w9riw96l80.js","/_next/static/immutable/chunks/0w75qangey2ys.js","/_next/static/immutable/chunks/1tge7vcvsb70s.js","/_next/static/immutable/chunks/35ju_ac0ysz07.js"],"FilesView"] 54:T184e,"use client" import { useState } from "react" // shadcn import { Button } from "@/components/ui/button" import { Card, CardAction, CardContent, CardDescription, CardFooter, CardHeader, CardTitle, } from "@/components/ui/card" import { Empty, EmptyDescription, EmptyHeader, EmptyMedia, EmptyTitle, } from "@/components/ui/empty" import { MessageScroller, MessageScrollerButton, MessageScrollerContent, MessageScrollerProvider, MessageScrollerViewport, } from "@/components/ui/message-scroller" import { ToggleGroup, ToggleGroupItem } from "@/components/ui/toggle-group" // project import { MessageAnimated } from "@/components/message-animated" // assets import { ArrowUpIcon, MessageCircleDashedIcon, RotateCwIcon, } from "lucide-react" // types type AnchorRole = "user" | "assistant" type ChatMessage = { id: string role: AnchorRole text: string } // constants const scriptedMessages: ChatMessage[] = [ { id: "anchor-1-user", role: "user", text: "Can you show me how anchoring behaves when a new prompt starts the turn?", }, { id: "anchor-1-assistant", role: "assistant", text: "Append the user prompt first, then append the assistant response. With User selected, the prompt settles near the top and the assistant response fills in below it.", }, { id: "anchor-2-user", role: "user", text: "What changes when assistant messages are the anchor?", }, { id: "anchor-2-assistant", role: "assistant", text: "Now each assistant response is the item `MessageScroller` keeps in view. This is useful when the reply is the moment you want readers to land on after each turn.", }, { id: "anchor-3-user", role: "user", text: "Can I switch roles and keep adding turns?", }, { id: "anchor-3-assistant", role: "assistant", text: "Yes. The next appended message with the selected role becomes the anchor, so you can compare user and assistant anchoring without resetting the demo.", }, ] // ------------------------------ | MESSAGE SCROLLER - ANCHORING TURNS | ------------------------------ // export function MessageScrollerAnchoring() { const [anchorRole, setAnchorRole] = useState("user") const [messages, setMessages] = useState([]) const [messageIndex, setMessageIndex] = useState(0) const nextMessage = scriptedMessages[messageIndex] return (

Anchoring Turns Choose which role settles near the top edge. {messages.length === 0 ? ( No anchored messages yet Send the first message to see the selected role anchor. ) : ( {messages.map((message) => ( ))} )} { const nextValue = value[0] if (nextValue === "user" || nextValue === "assistant") { setAnchorRole(nextValue) setMessages([]) setMessageIndex(0) } }} > User Assistant

Toggle the anchor role, then send messages to compare where turns settle.

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Message Scroller Anchoring Turns

Installation

Files

@components

Styles