From ace3dcb03dfb727a1e48a5393cf03f7ec846c2f5 Mon Sep 17 00:00:00 2001
From: Kyzcreig <9063726+Kyzcreig@users.noreply.github.com>
Date: Fri, 10 Jul 2026 17:44:46 -0700
Subject: [PATCH] =?UTF-8?q?fix(desktop):=20cross-machine=20session-list=20?=
 =?UTF-8?q?sync=20=E2=80=94=20refresh=20sidebar=20on=20focus=20+=2030s=20f?=
 =?UTF-8?q?ocused=20poll?=
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BroadcastChannel only reaches windows on the SAME machine, and gateway
session.info events route to the owning transport only, so a pin/unpin/
title/create on one desktop never propagated live to another (visible
only after app restart — reported by Ace pinning on Studio and MBP).
Mirrors the poll-based livesync pattern: refresh on window focus + a
30s interval while focused. No new RPCs; reuses refreshSessions().
---
 apps/desktop/src/app/desktop-controller.tsx | 27 +++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/apps/desktop/src/app/desktop-controller.tsx b/apps/desktop/src/app/desktop-controller.tsx
index fd689ef6dd3d..5bff50623cc7 100644
--- a/apps/desktop/src/app/desktop-controller.tsx
+++ b/apps/desktop/src/app/desktop-controller.tsx
@@ -415,6 +415,33 @@ export function DesktopController() {
     return onSessionsChanged(() => void refreshSessions().catch(() => undefined))
   }, [refreshSessions])
 
+  // Cross-MACHINE session-list sync: BroadcastChannel only reaches windows on
+  // this machine, and the gateway routes session.info events to the session's
+  // owning transport only — so a pin/title/create on another desktop never
+  // reaches this one live (it only showed up after an app restart). Re-pull the
+  // list on window focus and on a slow poll while focused, mirroring the
+  // poll-based livesync pattern.
+  useEffect(() => {
+    if (isSecondaryWindow()) {
+      return
+    }
+
+    const refresh = () => void refreshSessions().catch(() => undefined)
+
+    window.addEventListener('focus', refresh)
+
+    const timer = window.setInterval(() => {
+      if (typeof document.hasFocus !== 'function' || document.hasFocus()) {
+        refresh()
+      }
+    }, 30_000)
+
+    return () => {
+      window.removeEventListener('focus', refresh)
+      window.clearInterval(timer)
+    }
+  }, [refreshSessions])
+
   const toggleSelectedPin = useCallback(() => {
     const sessionId = $selectedStoredSessionId.get()