import { OnAnimationEnd, OnChange, OnFinish, OnHold, OnRelease } from "@egjs/axes";
import Panel from "../../core/panel/Panel";
import Flicking from "../../Flicking";
export declare enum STATE_TYPE {
    IDLE = 0,
    HOLDING = 1,
    DRAGGING = 2,
    ANIMATING = 3,
    DISABLED = 4
}
/**
 * Event context for State event handlers
 * @internal
 */
export interface StateContext<T> {
    /** An instance of Flicking */
    flicking: Flicking;
    /** An Axes event */
    axesEvent: T;
    /** A function for changing current state to other state */
    transitTo: (nextState: STATE_TYPE) => State;
}
/**
 * A component that shows the current status of the user input or the animation
 * @internal
 */
declare abstract class State {
    /**
     * Whether user is clicking or touching
     * @readonly
     */
    abstract readonly holding: boolean;
    /**
     * Whether Flicking's animating
     * @readonly
     */
    abstract readonly animating: boolean;
    protected _delta: number;
    protected _targetPanel: Panel | null;
    /**
     * A sum of delta values of change events from the last hold event of Axes
     * @readonly
     */
    get delta(): number;
    /**
     * A panel to set as {@link Control.activePanel} after the animation is finished
     * @readonly
     */
    get targetPanel(): Panel | null;
    set targetPanel(val: Panel | null);
    /**
     * An callback which is called when state has changed to this state
     * @param prevState - An previous state
     */
    onEnter(prevState: State): void;
    /**
     * An event handler for Axes's {@link https://naver.github.io/egjs-axes/docs/api/Axes#event-hold | hold} event
     * @param ctx - {@link StateContext}
     */
    onHold(ctx: StateContext<OnHold>): void;
    /**
     * An event handler for Axes's {@link https://naver.github.io/egjs-axes/docs/api/Axes#event-change | change} event
     * @param ctx - {@link StateContext}
     */
    onChange(ctx: StateContext<OnChange>): void;
    /**
     * An event handler for Axes's {@link https://naver.github.io/egjs-axes/docs/api/Axes#event-release | release} event
     * @param ctx - {@link StateContext}
     */
    onRelease(ctx: StateContext<OnRelease>): void;
    /**
     * An event handler for Axes's {@link https://naver.github.io/egjs-axes/docs/api/Axes#event-animationEnd | animationEnd} event
     * @param ctx - {@link StateContext}
     */
    onAnimationEnd(ctx: StateContext<OnAnimationEnd>): void;
    /**
     * An event handler for Axes's {@link https://naver.github.io/egjs-axes/docs/api/Axes#event-finish | finish} event
     * @param ctx - {@link StateContext}
     */
    onFinish(ctx: StateContext<OnFinish>): void;
    /**
     * @internal
     */
    protected _moveToChangedPosition(ctx: StateContext<OnChange>): void;
}
export default State;