import { CheckStrategy, TreeNode } from 'treemate';
import type { MergedTheme } from '../../_mixins';
import type { NLocale } from '../../locales';
import type { CascaderTheme } from '../styles';
import { InjectionKey, Ref } from 'vue';
export declare type ValueAtom = string | number;
export declare type Value = ValueAtom | ValueAtom[];
export declare type Key = ValueAtom;
export interface CascaderOption {
    label?: string;
    value?: ValueAtom;
    disabled?: boolean;
    children?: CascaderOption[];
    [key: string]: unknown;
}
export declare type ExpandTrigger = 'hover' | 'click';
export declare type TmNode = TreeNode<CascaderOption>;
export declare type Filter = (pattern: string, option: CascaderOption, path: CascaderOption[]) => boolean;
export declare type OnLoad = (option: CascaderOption) => Promise<void>;
export declare type OnUpdateValue = (value: string & number & string[] & number[] & Array<string | number> & (string | null) & (number | null) & (string[] | null) & (number[] | null) & (Array<string | number> | null), option: null & CascaderOption & CascaderOption[] & Array<CascaderOption | null>, path: null & CascaderOption[] & Array<CascaderOption[] | null>) => void;
export declare type OnUpdateValueImpl = (value: Value | null, option: CascaderOption | null | Array<CascaderOption | null>, path: Array<CascaderOption[] | null> | CascaderOption[] | null) => void;
export declare type MenuModel = TmNode[][];
export interface CascaderInjection {
    mergedClsPrefixRef: Ref<string>;
    mergedThemeRef: Ref<MergedTheme<CascaderTheme>>;
    mergedValueRef: Ref<Value | null>;
    checkedKeysRef: Ref<Key[]>;
    indeterminateKeysRef: Ref<Key[]>;
    hoverKeyPathRef: Ref<Key[]>;
    mergedCheckStrategyRef: Ref<CheckStrategy>;
    multipleRef: Ref<boolean>;
    keyboardKeyRef: Ref<Key | null>;
    hoverKeyRef: Ref<Key | null>;
    remoteRef: Ref<boolean>;
    loadingKeySetRef: Ref<Set<Key>>;
    expandTriggerRef: Ref<ExpandTrigger>;
    isMountedRef: Ref<boolean>;
    cascadeRef: Ref<boolean>;
    onLoadRef: Ref<((value: CascaderOption) => Promise<void>) | undefined>;
    localeRef: Ref<NLocale['Cascader']>;
    virtualScrollRef: Ref<boolean>;
    optionHeightRef: Ref<string>;
    labelFieldRef: Ref<string>;
    syncCascaderMenuPosition: () => void;
    syncSelectMenuPosition: () => void;
    updateKeyboardKey: (value: Key | null) => void;
    updateHoverKey: (value: Key | null) => void;
    addLoadingKey: (value: Key) => void;
    deleteLoadingKey: (value: Key) => void;
    doCheck: (value: Key) => void;
    doUncheck: (value: Key) => void;
    closeMenu: (returnFocus?: boolean) => void;
    handleSelectMenuClickOutside: (e: MouseEvent) => void;
    handleCascaderMenuClickOutside: (e: MouseEvent) => void;
}
export interface CascaderSubmenuInstance {
    scroll: (index: number, elSize: number) => void;
}
export interface CascaderMenuExposedMethods {
    scroll: (depth: number, index: number, elSize: number) => void;
    showErrorMessage: (label: string) => void;
}
export declare type CascaderMenuInstance = {
    $el: HTMLElement;
} & CascaderMenuExposedMethods;
export interface SelectMenuInstance {
    prev: () => void;
    next: () => void;
    enter: () => boolean;
}
export declare const cascaderInjectionKey: InjectionKey<CascaderInjection>;