import { Object3D } from "three";
import { Behaviour } from "./Component.js";
import type { IPointerEventHandler, PointerEventData } from "./ui/PointerEvents.js";
/**
 * The DragMode determines how an object is dragged around in the scene.
 */
export declare enum DragMode {
    /** Object stays at the same horizontal plane as it started. Commonly used for objects on the floor */
    XZPlane = 0,
    /** Object is dragged as if it was attached to the pointer. In 2D, that means it's dragged along the camera screen plane. In XR, it's dragged by the controller/hand. */
    Attached = 1,
    /** Object is dragged along the initial raycast hit normal. */
    HitNormal = 2,
    /** Combination of XZ and Screen based on the viewing angle. Low angles result in Screen dragging and higher angles in XZ dragging. */
    DynamicViewAngle = 3,
    /** The drag plane is adjusted dynamically while dragging. */
    SnapToSurfaces = 4,
    /** Don't allow dragging the object */
    None = 5
}
/**
 * DragControls allows you to drag objects around in the scene. It can be used to move objects in 2D (screen space) or 3D (world space).
 * @category Interactivity
 * @group Components
 */
export declare class DragControls extends Behaviour implements IPointerEventHandler {
    /**
     * @returns True if any DragControls component is currently active
     */
    static get HasAnySelected(): boolean;
    private static _active;
    /** @returns a list of DragControl components that are currently active */
    static get CurrentlySelected(): DragControls[];
    /** Currently active and enabled DragControls components */
    private static _instances;
    /** How and where the object is dragged along. */
    dragMode: DragMode;
    /** Snap dragged objects to a XYZ grid – 0 means: no snapping. */
    snapGridResolution: number;
    /** Keep the original rotation of the dragged object. */
    keepRotation: boolean;
    /** How and where the object is dragged along while dragging in XR. */
    xrDragMode: DragMode;
    /** Keep the original rotation of the dragged object while dragging in XR. */
    xrKeepRotation: boolean;
    /** Accelerate dragging objects closer / further away when in XR */
    xrDistanceDragFactor: number;
    /** When enabled, draws a line from the dragged object downwards to the next raycast hit. */
    showGizmo: boolean;
    /** The currently dragged object (if any) */
    get draggedObject(): Object3D<import("three").Object3DEventMap> | null;
    /**
     * Use to update the object that is being dragged by the DragControls
     */
    setTargetObject(obj: Object3D | null): void;
    private _rigidbody;
    /** The object to be dragged – we pass this to handlers when they are created */
    private _targetObject;
    private _dragHelper;
    private static lastHovered;
    private _draggingRigidbodies;
    private _potentialDragStartEvt;
    private _dragHandlers;
    private _totalMovement;
    /** A marker is attached to components that are currently interacted with, to e.g. prevent them from being deleted. */
    private _marker;
    private _isDragging;
    private _didDrag;
    /** @internal */
    awake(): void;
    /** @internal */
    start(): void;
    /** @internal */
    onEnable(): void;
    /** @internal */
    onDisable(): void;
    private allowEdit;
    /** @internal */
    onPointerEnter?(evt: PointerEventData): void;
    /** @internal */
    onPointerMove?(args: PointerEventData): void;
    /** @internal */
    onPointerExit?(evt: PointerEventData): void;
    /** @internal */
    onPointerDown(args: PointerEventData): void;
    /** @internal */
    onPointerUp(args: PointerEventData): void;
    /** @internal */
    update(): void;
    /** Called when the first pointer starts dragging on this object. Not called for subsequent pointers on the same object. */
    private onFirstDragStart;
    /** Called each frame as long as any pointer is dragging this object. */
    private onAnyDragUpdate;
    /** Called when the last pointer has been removed from this object. */
    private onLastDragEnd;
}