import React__default from 'react';
import { UIContactPreviewComponentProps } from '../UIContactPreview/UIContactPreview.js';
import { VirtuosoProps, ScrollSeekConfiguration, ScrollSeekPlaceholderProps } from 'react-virtuoso';
import { UnknownType } from '../../types/index.js';
import { Contact } from '../../types/models.js';

type UIContactListProps = {
    /** 传递给 react-virtuoso 的属性 [`react-virtuoso` virtualized list dependency](https://virtuoso.dev/virtuoso-api-reference/) */
    additionalVirtuosoProps?: VirtuosoProps<UnknownType, unknown>;
    defaultItemHeight?: number;
    /**
     * 用户快速滚动列表时显示占位符来提高性能:
     * ```
     *  {
     *    enter: (velocity) => Math.abs(velocity) > 120,
     *    exit: (velocity) => Math.abs(velocity) < 40,
     *    change: () => null,
     *    placeholder: ({index, height})=> <div style={{height: height + "px"}}>{index}</div>,
     *  }
     *  ```
     */
    scrollSeekPlaceHolder?: ScrollSeekConfiguration & {
        placeholder: React__default.ComponentType<ScrollSeekPlaceholderProps>;
    };
    Preview?: React__default.ComponentType<UIContactPreviewComponentProps>;
    /** 自定义列表头部 */
    head?: React__default.ReactElement;
    activeContact?: Contact;
    setActiveContact?: (contact: Contact) => void;
};
type UIContactListWithContextProps = UIContactListProps & {
    hasMore: boolean;
    loading: boolean;
    loadMore: () => void;
    contacts: Contact[];
};
declare const UIContactList: React__default.FC<UIContactListProps>;

export { UIContactList, UIContactListProps, UIContactListWithContextProps };
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