import type { PropertyValues, TemplateResult } from "lit";
import { XmField } from "../field/index.js";
export declare class XmTextarea extends XmField {
    static styles: CSSStyleSheet[];
    /** Initial visible height in text rows. */
    rows: number;
    /** Native placeholder — shown when the live value is empty. */
    placeholder: string;
    /** Grow the textarea height with content up to `maxRows` (no scroll jitter). */
    autoGrow: boolean;
    /** Cap for auto-grow, in rows. Beyond it the textarea scrolls. */
    maxRows: number;
    private _textarea;
    protected updated(changed: PropertyValues<this>): void;
    private _onInput;
    private _onChange;
    /** Reset then snap to scrollHeight, clamped to maxRows. Reading scrollHeight
        after a height reset is the only reliable shrink-and-grow measurement;
        it's a single synchronous layout read per input, not an animation. */
    private _resize;
    protected renderControl(): TemplateResult;
}
declare global {
    interface HTMLElementTagNameMap {
        "xm-textarea": XmTextarea;
    }
}