API Reference > ui-framework > Frontstage > FrontstageComposer FrontstageComposer<SS> Class FrontstageComposer React component. Extends Component<CommonProps, FrontstageComposerState> Implements WidgetChangeHandler TargetChangeHandler ZoneDefProvider StagePanelChangeHandler NineZoneChangeHandler Methods Name Description constructor(props: CommonProps): FrontstageComposer componentDidMount(): void componentWillUnmount(): void getGhostOutlineBounds(zoneId: WidgetZoneId): RectangleProps | undefined getZoneDef(zoneId: number): ZoneDef | undefined handleResize(zoneId: WidgetZoneId, resizeBy: number, handle: ResizeHandle, filledHeightDiff: number): void handleTabClick(widgetId: WidgetZoneId, tabIndex: number): void handleTabDrag(dragged: PointProps): void handleTabDragEnd(): void handleTabDragStart(widgetId: WidgetZoneId, tabIndex: number, initialPosition: PointProps, widgetBounds: RectangleProps): void handleTargetChanged(zoneId: WidgetZoneId, type: ZoneTargetType, isTargeted: boolean): void handleWidgetStateChange(widgetId: WidgetZoneId, tabIndex: number, isOpening: boolean): void handleZonesBoundsChange(bounds: RectangleProps): void mergeZones(toMergeId: WidgetZoneId, targetId: WidgetZoneId): void render(): React.ReactNode setZoneAllowsMerging(zoneId: WidgetZoneId, allowsMerging: boolean): void Inherited methods Name Inherited from Description UNSAFE_componentWillMount(): void Optional DeprecatedLifecycle Called immediately before mounting occurs, and before Component#render. UNSAFE_componentWillReceiveProps(nextProps: Readonly<CommonProps>, nextContext: any): void Optional DeprecatedLifecycle Called when the component may be receiving new props. UNSAFE_componentWillUpdate(nextProps: Readonly<CommonProps>, nextState: Readonly<FrontstageComposerState>, 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. componentDidUpdate(prevProps: Readonly<CommonProps>, prevState: Readonly<FrontstageComposerState>, snapshot?: SS): void Optional NewLifecycle Called immediately after updating occurs. componentWillMount(): void Optional DeprecatedLifecycle Called immediately before mounting occurs, and before Component#render. componentWillReceiveProps(nextProps: Readonly<CommonProps>, nextContext: any): void Optional DeprecatedLifecycle Called when the component may be receiving new props. componentWillUpdate(nextProps: Readonly<CommonProps>, nextState: Readonly<FrontstageComposerState>, nextContext: any): void Optional DeprecatedLifecycle Called immediately before rendering when new props or state is received. forceUpdate(callback?: () => void): void Component getSnapshotBeforeUpdate(prevProps: Readonly<CommonProps>, prevState: Readonly<FrontstageComposerState>): SS | null Optional NewLifecycle Runs before React applies the result of render to the document, and setState<K extends undefined>(state: (prevState: Readonly<FrontstageComposerState>, props: Readonly<CommonProps>) => null | S | { T } | null | S | { T }, callback?: () => void): void Component shouldComponentUpdate(nextProps: Readonly<CommonProps>, nextState: Readonly<FrontstageComposerState>, 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 If using the new style context, re-declare this in your class to be the contextType Static undefined | Context<any> Component If set, this.context will be set at runtime to the current value of the given Context. props Readonly<CommonProps> & Readonly<{ children?: ReactNode }> Component refs [key: string]: ReactInstance Component Defined in ui/framework/src/ui-framework/frontstage/FrontstageComposer.tsx Line 113 Last Updated: 13 June, 2024