snapshot of https://github.com/makeplane/plane.git @ d868349a55de79979eb8b98701bf1702c67ad634 (2026-09-15)

apps/web/core/lib/app-rail/context.tsx

@@ -0,0 +1,29 @@
+/**
+ * Copyright (c) 2023-present Plane Software, Inc. and contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * See the LICENSE file for details.
+ */
+
+import { createContext, useContext } from "react";
+import type { IAppRailVisibilityContext } from "./types";
+
+/**
+ * Context for app-rail visibility control
+ * Provides access to app rail enabled state, collapse state, and toggle function
+ */
+export const AppRailVisibilityContext = createContext<IAppRailVisibilityContext | undefined>(undefined);
+
+/**
+ * Hook to consume the AppRailVisibilityContext
+ * Must be used within an AppRailVisibilityProvider
+ *
+ * @returns The app rail visibility context
+ * @throws Error if used outside of AppRailVisibilityProvider
+ */
+export const useAppRailVisibility = (): IAppRailVisibilityContext => {
+  const context = useContext(AppRailVisibilityContext);
+  if (context === undefined) {
+    throw new Error("useAppRailVisibility must be used within AppRailVisibilityProvider");
+  }
+  return context;
+};