# FocusableOptions

Options for a generic focusable host.

## Signatures

```ts
export interface FocusableOptions extends Dom.HostOptions<HTMLDivElement> {
    readonly content: Renderable.Any;
    readonly role?: Renderable.Any<string | null | undefined>;
    readonly tabIndex?: Renderable.Any<number | null | undefined>;
}
```

## Why

Some composite patterns need a focus target without adding a specialized
widget role. These options make that choice explicit.

## Ownership and lifetime

The model is inert; rendered dynamic values live for the component Scope.

## Property: content

Content rendered inside the focusable host.

## Property: content: Why

Content remains independent of the focus behavior.

## Property: content: Ownership and lifetime

Dynamic content follows the rendered Scope and is released with it.

## Property: role

Optional ARIA role for the focus target.

## Property: role: Why

Callers, not Typed, know which widget semantics apply.

## Property: role: Ownership and lifetime

The reflected value retains no resources.

## Property: tabIndex

Tab order value; defaults to zero.

## Property: tabIndex: Why

An explicit tab index makes a non-interactive host keyboard reachable.

## Property: tabIndex: Ownership and lifetime

Dynamic values are observed only for the component Scope.