64 lines
1.3 KiB
TypeScript
64 lines
1.3 KiB
TypeScript
import clsx from 'clsx';
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import {
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createContext,
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PropsWithChildren,
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Ref,
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useContext,
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useMemo,
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useState,
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} from 'react';
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interface WidgetContextValue {
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titleId: string | undefined;
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}
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const Context = createContext<null | WidgetContextValue>(null);
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Context.displayName = 'WidgetContext';
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// Simple ID generator for React 17 compatibility
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let idCounter = 0;
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function generateId() {
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return `widget-title-${++idCounter}`;
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}
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export function useWidgetContext() {
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const context = useContext(Context);
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if (context == null) {
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throw new Error('Should be inside a Widget component');
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}
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return context;
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}
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export function Widget({
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children,
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className,
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mRef,
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id,
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'aria-label': ariaLabel,
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}: PropsWithChildren<{
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className?: string;
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mRef?: Ref<HTMLDivElement>;
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id?: string;
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'aria-label'?: string;
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}>) {
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// Only generate titleId once on mount if aria-label is not provided
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const [titleId] = useState(() => (ariaLabel ? undefined : generateId()));
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const contextValue = useMemo(() => ({ titleId }), [titleId]);
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return (
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<Context.Provider value={contextValue}>
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<section
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id={id}
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className={clsx('widget', className)}
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ref={mRef}
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aria-label={ariaLabel}
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aria-labelledby={titleId}
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>
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{children}
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</section>
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</Context.Provider>
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);
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}
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