Function useRuntimeManager

useRuntimeManager(
    initialRuntime?: RuntimeJSON,
): {
    kernelName: string;
    selectedRuntime: RuntimeJSON;
    selectPyodideRuntime: () => Promise<void>;
    selectRuntime: (runtime: RuntimeJSON) => void;
    serviceManager: IManager;
}
Hook to manage runtime selection and service manager lifecycle.

Uses MutableServiceManager to maintain a stable serviceManager reference, preventing Notebook2 from re-rendering when runtimes are switched. This is crucial for UX - prevents cell flickering and scroll position loss.
Parameters
- OptionalinitialRuntime: RuntimeJSON
  Optional initial runtime to use
Returns {
    kernelName: string;
    selectedRuntime: RuntimeJSON;
    selectPyodideRuntime: () => Promise<void>;
    selectRuntime: (runtime: RuntimeJSON) => void;
    serviceManager: IManager;
}
Runtime state and selection function
- kernelName: string
- selectedRuntime: RuntimeJSON
- selectPyodideRuntime: () => Promise<void>
  Switch to Pyodide kernel for offline execution. The MutableServiceManager reference stays stable - no component re-renders!
- selectRuntime: (runtime: RuntimeJSON) => void
  Select a runtime and update the underlying service manager. The MutableServiceManager reference stays stable - no component re-renders!
- serviceManager: IManager
Example
```
const { selectedRuntime, serviceManager, selectRuntime } = useRuntimeManager();

// Select a runtime
selectRuntime(runtime);

// Clear runtime (switch to mock)
selectRuntime(undefined);

// serviceManager reference stays stable - no Notebook2 re-render!
```
- Defined in webview/hooks/useRuntimeManager.ts:43

Function useRuntimeManager

Parameters

Returns { kernelName: string; selectedRuntime: RuntimeJSON; selectPyodideRuntime: () => Promise<void>; selectRuntime: (runtime: RuntimeJSON) => void; serviceManager: IManager;}

kernelName: string

selectedRuntime: RuntimeJSON

selectPyodideRuntime: () => Promise<void>

selectRuntime: (runtime: RuntimeJSON) => void

serviceManager: IManager

Example

Settings

Returns {
kernelName: string;
selectedRuntime: RuntimeJSON;
selectPyodideRuntime: () => Promise<void>;
selectRuntime: (runtime: RuntimeJSON) => void;
serviceManager: IManager;
}