Session switch: land at the bottom instantly with the question dock open

sorokin.oleg.edu/learnharness

- Chat now remounts per session (key={chat.id}): fresh StickToBottom,
  fresh DockOverlay (no cross-session morph from the previous shell
  height), fresh useChat.
- Conversation initial="instant" (was "smooth"): the mount scroll to
  bottom is a jump, not a slide.
- DockOverlay skips the pending-question scroll/expand effect for the
  session's INITIAL pending question (dock starts expanded; the initial
  scroll positions us) — previously it fired a second smooth
  scrollToBottom right after the library's initial scroll (the visible
  'pause, then the quiz pops and pushes everything up').
- The dock-variant fade/rise no longer plays for the session's opening
  variant; reserved for mid-session transitions.
Verified live: client-side switch settles at d=1px from the bottom within
one frame of content swap, dock open from the first frame, both
directions (quiz session, plain session).

This commit is contained in:

Amos

2026-08-22 06:45:32 +03:00

parent 939e1e2e5e

commit d1d28d6bb4

2 changed files with 14 additions and 8 deletions

									
										app/chat/[id]/page.tsx
									
		+1
		
												View File
												
				@@ -17,6 +17,7 @@ export default async function ChatPage({

					if (!chat) notFound();

					return (

						<Chat

							key={chat.id}

							chatId={chat.id}

							title={chat.title}

							initialMessages={chat.messages as TeacherUIMessage[]}