API Reference > ui-core > Popup > FocusTrap FocusTrap<SS> Class Beta Trap Focus in container while trap is active. Extends Component<Props, State> Methods Name Description constructor(props: Props): FocusTrap componentDidUpdate(prevProps: Props, prevState: State): void componentWillUnmount(): void isFocusable(element: HTMLElement): boolean render(): null | Element Inherited methods Name Inherited from Description UNSAFE_componentWillMount(): void Optional DeprecatedLifecycle Called immediately before mounting occurs, and before Component#render. UNSAFE_componentWillReceiveProps(nextProps: Readonly<Props>, nextContext: any): void Optional DeprecatedLifecycle Called when the component may be receiving new props. UNSAFE_componentWillUpdate(nextProps: Readonly<Props>, nextState: Readonly<State>, nextContext: any): void Optional DeprecatedLifecycle Called immediately before rendering when new props or state is received. componentDidCatch(error: Error, errorInfo: ErrorInfo): void Optional ComponentLifecycle Catches exceptions generated in descendant components. componentDidMount(): void Optional ComponentLifecycle Called immediately after a component is mounted. componentWillMount(): void Optional DeprecatedLifecycle Called immediately before mounting occurs, and before Component#render. componentWillReceiveProps(nextProps: Readonly<Props>, nextContext: any): void Optional DeprecatedLifecycle Called when the component may be receiving new props. componentWillUpdate(nextProps: Readonly<Props>, nextState: Readonly<State>, nextContext: any): void Optional DeprecatedLifecycle Called immediately before rendering when new props or state is received. forceUpdate(callback?: () => void): void Component<Props, State> getSnapshotBeforeUpdate(prevProps: Readonly<Props>, prevState: Readonly<State>): SS | null Optional NewLifecycle Runs before React applies the result of render to the document, and setState<K extends undefined>(state: (prevState: Readonly<State>, props: Readonly<Props>) => null | S | { T } | null | S | { T }, callback?: () => void): void Component<Props, State> shouldComponentUpdate(nextProps: Readonly<Props>, nextState: Readonly<State>, nextContext: any): boolean Optional ComponentLifecycle Called to determine whether the change in props and state should trigger a re-render. Inherited properties Name Type Inherited from Description context any Component<Props, State> If using the new style context, re-declare this in your class to be the contextType Static undefined | Context<any> Component<Props, State> If set, this.context will be set at runtime to the current value of the given Context. props Readonly<Props> & Readonly<{ children?: ReactNode }> Component<Props, State> refs [key: string]: ReactInstance Component<Props, State> state Readonly<State> Component<Props, State> Defined in ui/core/src/ui-core/focustrap/FocusTrap.tsx Line 42 Last Updated: 13 June, 2024