OpenedWindowState

type OpenedWindowState<R> =
  | {
  error: undefined;
  result: undefined;
  status: "idle";
}
  | {
  error: undefined;
  result: undefined;
  status: "opening";
}
  | {
  error: undefined;
  result: undefined;
  status: "connected";
}
  | {
  error: undefined;
  result: R;
  status: "done";
}
  | {
  error: WindowClosedError;
  result: undefined;
  status: "closed-early";
}
  | {
  error: unknown;
  result: undefined;
  status: "error";
};

The flow’s state as a discriminated union, so status narrows result and error for you. Three independent fields could not: result was R | undefined even in the ‘done’ branch, which is why reading it needed a non-null assertion at every call site.

Type Parameters

Type Parameter
R

Union Members

Type Literal

{
  error: undefined;
  result: undefined;
  status: "idle";
}

---

Type Literal

{
  error: undefined;
  result: undefined;
  status: "opening";
}

---

Type Literal

{
  error: undefined;
  result: undefined;
  status: "connected";
}

---

Type Literal

{
  error: undefined;
  result: R;
  status: "done";
}

---

Type Literal

{
  error: WindowClosedError;
  result: undefined;
  status: "closed-early";
}

The child window went away before calling finish().

---

Type Literal

{
  error: unknown;
  result: undefined;
  status: "error";
}

The handshake timed out, the popup was blocked, or the factory threw.