import { Entity } from './Entity';
export declare class DOMPortalEntity extends Entity {
    domElement: HTMLElement;
    isDOMPortal: boolean;
    private domListeners;
    private resizeObserver;
    private domBound;
    cachedWidth: number;
    cachedHeight: number;
    lastWidth: string;
    lastHeight: string;
    lastTransform: string;
    lastZIndex: string;
    lastOpacity: string;
    constructor(domElement: HTMLElement, width?: number, height?: number, id?: string);
    /**
     * Attach the ResizeObserver + DOM event listeners that bridge native DOM
     * events into the Vecto event system. Idempotent: safe to call every frame
     * from the projection path (`Scene.syncPortalGeometry`), which is what lets a
     * portal survive a `scene.remove()` -> re-add cycle — {@link releaseDOMBindings}
     * tears these down on removal and the next projection re-attaches them.
     */
    attachDOMBindings(): void;
    /**
     * Disconnect the ResizeObserver and remove the DOM event listeners, without
     * touching the scene graph or the element's DOM parentage. Called on the
     * `scene.remove()` path so a detached portal doesn't leak an observer that
     * keeps its element alive and firing; the element itself is removed from the
     * document by the scene's portal pruning. Re-attached lazily on the next
     * projection frame via {@link attachDOMBindings}.
     */
    releaseDOMBindings(): void;
    isPointInside(globalX: number, globalY: number): boolean;
    add(..._children: Entity[]): this;
    render(): void;
    destroy(): void;
}