import { CSSProperties } from 'vue';
import type { FitWidthProps } from '../_hooks/use-fit-width';
import { VirtualListProps } from '../_components/virtual-list/interface';
import { Size } from '../_utils/constant';
import { TreeFieldNames, TreeNodeData, TreeProps, TreeNodeKey, LoadMore, CheckedStrategy } from '../tree/interface';
import { TriggerProps } from '../trigger';
export interface LabelValue {
    value: TreeNodeKey;
    label: string | number;
}
export type TreeSelectValue = TreeNodeKey | TreeNodeKey[] | LabelValue | LabelValue[];
export interface TreeSelectTriggerSlotProps {
    value: TreeSelectValue | undefined;
    displayValue: string | string[];
    inputValue: string;
    selectedOptions: TreeNodeData[];
    popupVisible: boolean;
    disabled: boolean;
    loading: boolean;
    multiple: boolean;
}
export type FilterTreeNode = (searchKey: string, nodeData: TreeNodeData) => boolean;
export type FallbackOption = boolean | ((key: TreeNodeKey) => TreeNodeData | boolean);
export type ChangeHandler = (selectedValue: TreeSelectValue | undefined) => void;
export type PopupVisibleChangeHandler = (popupVisible: boolean) => void;
export type SearchHandler = (searchKey: string) => void;
export type ClearHandler = () => void;
export interface TreeSelectProps extends FitWidthProps {
    disabled: boolean;
    loading: boolean;
    error: boolean;
    size: Size;
    border: boolean;
    allowSearch: boolean | {
        retainInputValue?: boolean;
    } | undefined;
    filterable: boolean | undefined;
    allowClear: boolean;
    clearable: boolean | undefined;
    showArrow: boolean;
    placeholder: string | undefined;
    maxTagCount: number | 'responsive' | undefined;
    defaultValue: TreeSelectValue | undefined;
    modelValue: TreeSelectValue | undefined;
    value: TreeSelectValue | undefined;
    multiple: boolean;
    fieldNames: TreeFieldNames | undefined;
    data: TreeNodeData[];
    options: TreeNodeData[] | undefined;
    ellipsis: TreeProps['ellipsis'] | undefined;
    labelInValue: boolean;
    treeCheckable: boolean;
    checkable: boolean | undefined;
    treeCheckStrictly: boolean;
    treeCheckedStrategy: CheckedStrategy;
    checkStrategy: CheckedStrategy | undefined;
    showPath: boolean;
    separator: string;
    treeProps: Partial<TreeProps> | undefined;
    virtualListProps: VirtualListProps | undefined;
    triggerProps: Partial<TriggerProps> | undefined;
    virtualScroll: boolean | undefined;
    popupVisible: boolean | undefined;
    defaultPopupVisible: boolean;
    show: boolean | undefined;
    defaultShow: boolean | undefined;
    dropdownStyle: CSSProperties | undefined;
    dropdownClassName: string | string[] | undefined;
    filterTreeNode: FilterTreeNode | undefined;
    loadMore: LoadMore | undefined;
    disableFilter: boolean;
    popupContainer?: string | HTMLElement;
    fallbackOption: FallbackOption;
    showHeaderOnEmpty?: boolean;
    showFooterOnEmpty?: boolean;
}