type PlacementType = 'default' | 'full' | 'left';
interface State {
    type: PlacementType;
    style: {
        width: number;
        height: number;
        transition?: string;
    };
    position: {
        x: number;
        y: number;
    };
}
interface ReducerMapping {
    full: never;
    left: never;
    position: {
        x: number;
        y: number;
    };
    moving: {
        direction: 'top-left' | 'top-right' | 'bottom-left' | 'bottom-right';
        movementX: number;
        movementY: number;
        min: {
            x: number;
            y: number;
        };
        max: {
            x: number;
            y: number;
        };
    };
    moved: DOMRect;
}
type Action<T extends keyof ReducerMapping, List extends keyof ReducerMapping> = T extends List ? {
    type: T;
    data: ReducerMapping[T];
} : {
    type: T;
};
export declare const defaultSize: {
    width: number;
    height: number;
};
export declare function reducer(state: State, action: Action<keyof ReducerMapping, 'moving' | 'position' | 'moved'>): State;
export {};