/**
 * Utility that attaches pointer/mouse/touch handlers to an element and
 * invokes a callback immediately plus while the interaction is held.
 */
export declare class LongPressController {
    private element;
    private onActivate;
    private buttonPressTimer;
    private usingPointerEvents;
    constructor(element: HTMLElement, onActivate: () => void);
    destroy(): void;
    private repeat;
    private startPress;
    private endPress;
    private handlePointerDown;
    private handlePointerUp;
    private handlePointerCancel;
    private handlePointerMove;
    private handleMouseDown;
    private handleMouseUp;
    private handleMouseMove;
    private handleTouchStart;
    private handleTouchEnd;
    private handleTouchMove;
    private stopEvent;
}
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