snapshot of https://github.com/excalidraw/excalidraw.git (master, 2026-09-16; blobs > 131072B omitted)

packages/excalidraw/context/tunnels.ts

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+import { createIsolation } from "jotai-scope";
+import React from "react";
+import tunnel from "tunnel-rat";
+
+export type Tunnel = ReturnType<typeof tunnel>;
+
+type TunnelsContextValue = {
+  MainMenuTunnel: Tunnel;
+  WelcomeScreenMenuHintTunnel: Tunnel;
+  WelcomeScreenToolbarHintTunnel: Tunnel;
+  WelcomeScreenHelpHintTunnel: Tunnel;
+  WelcomeScreenCenterTunnel: Tunnel;
+  FooterCenterTunnel: Tunnel;
+  DefaultSidebarTriggerTunnel: Tunnel;
+  DefaultSidebarTabTriggersTunnel: Tunnel;
+  OverwriteConfirmDialogTunnel: Tunnel;
+  TTDDialogTriggerTunnel: Tunnel;
+  // this can be removed once we create jotai stores per each editor
+  // instance
+  tunnelsJotai: ReturnType<typeof createIsolation>;
+};
+
+export const TunnelsContext = React.createContext<TunnelsContextValue>(null!);
+
+export const useTunnels = () => React.useContext(TunnelsContext);
+
+const tunnelsJotai = createIsolation();
+
+export const useInitializeTunnels = () => {
+  return React.useMemo((): TunnelsContextValue => {
+    return {
+      MainMenuTunnel: tunnel(),
+      WelcomeScreenMenuHintTunnel: tunnel(),
+      WelcomeScreenToolbarHintTunnel: tunnel(),
+      WelcomeScreenHelpHintTunnel: tunnel(),
+      WelcomeScreenCenterTunnel: tunnel(),
+      FooterCenterTunnel: tunnel(),
+      DefaultSidebarTriggerTunnel: tunnel(),
+      DefaultSidebarTabTriggersTunnel: tunnel(),
+      OverwriteConfirmDialogTunnel: tunnel(),
+      TTDDialogTriggerTunnel: tunnel(),
+      tunnelsJotai,
+    };
+  }, []);
+};