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fix(frontend): Scroll new session tab into view in agent playground #5112

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Merged
ardaerzin merged 4 commits into from
Jul 7, 2026
Merged

fix(frontend): Scroll new session tab into view in agent playground #5112

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cb9d6e5
fix(frontend): scroll newly created session tab into view in agent ch…
ardaerzin Jul 7, 2026
8bf3505
fix(frontend): let CSS scroll-behavior handle reduced motion in sessi…
ardaerzin Jul 7, 2026
492cf1a
Merge branch 'big-agents' into fe-fix/agent-session-tab-scroll-into-view
ardaerzin Jul 7, 2026
f8d752a
Merge branch 'big-agents' into fe-fix/agent-session-tab-scroll-into-view
ardaerzin Jul 7, 2026
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11 changes: 10 additions & 1 deletion web/oss/src/components/AgentChatSlice/components/SessionTagBar.tsx
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Original file line number Diff line number Diff line change
@@ -1,3 +1,5 @@
import {useEffect, useRef} from "react"

import {Plus, X} from "@phosphor-icons/react"
import {Button, Tooltip} from "antd"
import clsx from "clsx"
Expand Down Expand Up @@ -61,8 +63,15 @@ const SessionTag = ({
}: SessionTagProps) => {
const text = useAtomValue(sessionFirstUserTextAtomFamily(session.id))
const label = session.title || text || `Chat ${index + 1}`
const tabRef = useRef<HTMLDivElement>(null)
// Keep the active tab visible: a freshly-added session lands past the strip's overflow edge.
// Smooth vs instant comes from the strip's motion-safe:scroll-smooth, not JS.
useEffect(() => {
if (active) tabRef.current?.scrollIntoView({block: "nearest", inline: "nearest"})
}, [active])
return (
<div
ref={tabRef}
role="tab"
aria-selected={active}
tabIndex={0}
Expand Down Expand Up @@ -138,7 +147,7 @@ const SessionTagBar = ({
return (
<div className="flex h-[48px] min-w-0 w-full shrink-0 items-center gap-2 overflow-hidden border-0 border-b border-solid border-[var(--ag-surface-card-border)] px-3">
{showSessions ? (
<div className="flex min-w-0 flex-1 items-center gap-1.5 overflow-x-auto overscroll-x-contain [scrollbar-width:none] [&::-webkit-scrollbar]:hidden">
<div className="flex min-w-0 flex-1 items-center gap-1.5 overflow-x-auto overscroll-x-contain motion-safe:scroll-smooth [scrollbar-width:none] [&::-webkit-scrollbar]:hidden">
{sessions.map((session, index) => (
<SessionTag
key={session.id}
Expand Down
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