Right-click any pane's title bar → "Move to new window" pops it into a
fresh tiletopia window with its PTY intact. Same Tauri process; the
PtyManager is shared, so the existing PaneId stays valid and Tauri 2's
process-wide event routing keeps pane://{id}/data flowing into the new
window's XtermPane.
Mechanism (Rust-side, plan-agent's main correction over my draft):
- pty.rs: PtyManager.transferring is a per-pane refcount; kill_pane
becomes a no-op while it's >0. Source window's React unmount calls
kill_pane → silently dropped while in flight; target window's
claim_pane decrements after it has subscribed.
- window_state.rs: per-window workspaces snapshot map +
debounced-by-tokio aggregate save. Each window pushes its tabs via
push_window_workspaces; backend writes the merged
{ version: 2, workspaces: [...] } envelope. Non-main windows have
their entries dropped on CloseRequested so closing a detached window
discards its tabs (Chrome-style).
- commands: mark_pane_transferring, claim_pane, get_pane_ring (base64
scrollback ring snapshot), create_pane_window, take_pending_window_init,
push_window_workspaces.
Frontend:
- XtermPane gets `existingPaneId?: PaneId`: skip spawn, replay ring
snapshot via term.write before attaching the live data listener,
resize PTY to this window's grid, claim_pane. Scrollback replay was
the plan agent's other ship-in-v1 call — without it a transferred
Claude session looks blank until next prompt repaint.
- LeafPane: onContextMenu opens a fixed-positioned "Move to new
window" popover. Esc / outside-click dismiss.
- orchestration adds moveToNewWindow + getInitialPaneIdFor; App owns a
one-shot transferredPaneIdsRef cleared in registerPaneId.
- App mount branches on getCurrentWebviewWindow().label: main loads
workspace.json as before; non-main calls take_pending_window_init
and builds a singleton workspace around the adopted leaf.
- MCP mirror + onMcpRequest only run in main (paneIdByLeafRef is per-
window; Claude sees the main window's current tab as the single
workspace surface).
pnpm check (tsc -b) clean. 79/79 vitest pass. Rust side authored in
WSL; cargo build needs verification on Windows host before this is
runnable.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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