import * as React from 'react';
/**
 * Options for {@link useAutoResizeTextarea}.
 */
export interface UseAutoResizeTextareaOptions {
    /** Whether auto-resize is active. When false, the hook is a no-op. */
    autoResize: boolean;
    /**
     * Ref to the textarea to measure and resize. May point to a textarea
     * rendered by a component the caller does not own.
     */
    textareaRef: React.RefObject<HTMLTextAreaElement | null>;
    /** The textarea's current controlled value, if any. */
    value?: React.ComponentProps<'textarea'>['value'];
    /** The textarea's uncontrolled default value, if any. */
    defaultValue?: React.ComponentProps<'textarea'>['defaultValue'];
}
/**
 * Return value of {@link useAutoResizeTextarea}.
 */
export interface UseAutoResizeTextareaResult {
    /** True when the content's height exceeds the element's `max-height`. */
    hasOverflow: boolean;
    /**
     * Schedules a re-measure and height update on the next animation frame —
     * the element's height is not yet updated when this returns.
     */
    resizeToFitContent: () => void;
}
/**
 * Keeps a textarea's height synchronized with its content and container
 * width.
 *
 * Reads and writes only through the DOM node reached via `textareaRef`, so
 * auto-grow can be layered onto a text input rendered by any component,
 * including one that does not implement it itself.
 *
 * The resize path is triggered from several sources (input, value changes,
 * width changes) and deduped per frame.
 *
 * @param options - See {@link UseAutoResizeTextareaOptions}.
 * @returns See {@link UseAutoResizeTextareaResult}.
 */
export declare function useAutoResizeTextarea({ autoResize, textareaRef, value, defaultValue, }: UseAutoResizeTextareaOptions): UseAutoResizeTextareaResult;
//# sourceMappingURL=useAutoResizeTextarea.d.ts.map