The NSPasteboard bridge completing Phase 1 (design/clipboard-and-file-transfer.md
§5) — with the host backends on this branch, copy/paste now crosses the wire in
both directions on macOS. Lazy in both directions:
- PunktfunkConnection grows the clipboard plane: its own clipboardLock (close()
joins it like the other pullers), hostCaps/hostSupportsClipboard from the
Welcome, the typed ClipEvent vocabulary, and the six ABI wrappers
(clipControl/clipOffer/clipFetch/clipServe/clipCancel/nextClipboard — borrowed
event payloads copied out before the next poll).
- ClipboardSync (PunktfunkKit, macOS-only): one drain thread bridging
NSPasteboard.general ↔ the QUIC clipboard plane. Local copies announce format
lists via a 500 ms changeCount poll (+ immediate on app activation); bytes
leave only on a host FetchRequest, answered from the live pasteboard and
seq-guarded against staleness. Host copies install one NSPasteboardItem whose
data provider fires only when a Mac app actually pastes, then blocks its
provider thread (never main) on a 10 s-bounded fetch. Concealed/Transient
pasteboards (password managers) are never announced; our own writes are
changeCount-suppressed (§3.4). Text/RTF/HTML/PNG; files ride Phase 2.
- UI: per-host "Share clipboard with this host" toggle (StoredHost.clipboardSync,
optional for saved-JSON forward-compat — wire-format tests extended), a
mid-session Share/Stop Sharing Clipboard item in the Stream menu (⌃⌥⇧C,
greyed without HOST_CAP_CLIPBOARD), SessionModel owning the lifecycle
(start on streaming after the trust gate, drain joined off-main on teardown).
swift build + swift test green (macOS). Requires the ABI v8 xcframework
(scripts/build-xcframework.sh).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
