import { InjectionKey } from 'vue';
export type Key = string | number | symbol;
export type Data = any;
export type TreeNodeDropType = 'before' | 'inner' | 'after';
export type TreeLinkLine = 'dashed' | 'solid' | 'dotted' | 'none';
export interface TreeNodeKeyConfig {
    id?: string;
    parent?: string;
    label?: string;
    children?: string;
    visible?: string;
    selected?: string;
    expanded?: string;
    disabled?: string;
    checked?: string;
    loading?: string;
    loaded?: string;
    loadFail?: string;
    readonly?: string;
    arrow?: string;
    checkbox?: string;
    selectDisabled?: string;
    expandDisabled?: string;
    checkDisabled?: string;
    isLeaf?: string;
}
export declare const enum DropType {
    BEFORE = "before",
    INNER = "inner",
    AFTER = "after"
}
export type TreeNodeProps<D = Data> = {
    id: Key;
    parent?: Key;
    children: TreeNodeProps[];
    visible: boolean;
    selected: boolean;
    expanded: boolean;
    disabled: boolean;
    checked: boolean;
    loading: boolean;
    loaded: boolean;
    loadFail: boolean;
    readonly: boolean;
    arrow: boolean | 'auto';
    checkbox: boolean;
    selectDisabled: boolean;
    expandDisabled: boolean;
    checkDisabled: boolean;
    isLeaf: boolean | 'auto';
    data: D;
    /** @internal */
    partial: boolean;
    /** @internal */
    matched: boolean;
    /** @internal */
    childMatched: boolean;
    /** @internal */
    upperMatched: boolean;
    /** @internal */
    depth: number;
    /** @internal */
    last: boolean;
    /** @internal */
    upstreamLast: boolean[];
    /** @internal */
    lineIndexes: number[];
};
export type TreeNodePostCreate<D = Data> = (node: TreeNodeProps<D>) => void;
export type TreeNodeRenderFn<D = Data> = (params: {
    data: D;
    node: TreeNodeProps<D>;
}) => any;
export type AsyncLoadFn<D = Data> = (data: D, node: Readonly<TreeNodeProps<D>>) => void | boolean | Promise<any>;
export type FilterFn<D = Data> = (data: D, node: TreeNodeProps<D>) => boolean;
export type NodePropsFn<D = Data> = (data: D, node: TreeNodeProps<D>) => Data;
export interface TreeCommonSlotParams {
    data: Data;
    node: TreeNodeProps;
    depth: number;
    focused: boolean;
}
export interface TreeNodeSlotParams extends TreeCommonSlotParams {
    /** @deprecated */
    lineCount: number;
    lineIndexes: number[];
    toggleCheck: (checked?: boolean) => void;
    toggleExpand: (expanded?: boolean) => Promise<void>;
    toggleSelect: (able?: boolean) => Promise<void>;
}
export interface TreeNodeInstance {
    el?: HTMLElement | null;
    arrow?: HTMLElement | null;
    node: TreeNodeProps;
}
export interface TreeNodeState {
    el?: HTMLElement | null;
    depth: number;
    disabled: boolean;
    readonly: boolean;
}
export interface TreeCollapseProps {
    id: symbol;
    placeholder: true;
    type: 'expand' | 'reduce';
    height: number;
    nodes: TreeNodeProps[];
}
export interface TreeState {
    arrow: boolean | 'auto';
    checkbox: boolean;
    suffixCheckbox: boolean;
    noCascaded: boolean;
    linkLine: false | TreeLinkLine;
    virtual: boolean;
    labelKey: string;
    draggable: boolean;
    floorSelect: boolean;
    renderer: TreeNodeRenderFn;
    prefixRenderer: TreeNodeRenderFn;
    suffixRenderer: TreeNodeRenderFn;
    arrowIcon: Record<string, any>;
    blockEffect: boolean;
    dragging: boolean;
    boundAsyncLoad: boolean;
    nodeStates: Map<Key, TreeNodeState>;
    expanding: boolean;
    keepSelected: boolean;
    multiple: boolean;
    getParentNode(node: TreeNodeProps): TreeNodeProps | null;
    updateVisibleNodeEls(): void;
    computeCheckedState(originNode: TreeNodeProps, able: boolean): void;
    handleNodeClick(node: TreeNodeProps): void;
    handleNodeSelect(node: TreeNodeProps): void;
    handleNodeCancel(node: TreeNodeProps): void;
    handleNodeExpand(node: TreeNodeProps): void;
    handleNodeReduce(node: TreeNodeProps): void;
    handleNodeContextmenu(event: MouseEvent, node: TreeNodeProps): void;
    handleAsyncLoad(node: TreeNodeProps): Promise<boolean>;
    handleNodeDragStart(nodeInstance: TreeNodeInstance): void;
    handleNodeDragOver(nodeInstance: TreeNodeInstance, event: DragEvent): void;
    handleNodeDrop(nodeInstance: TreeNodeInstance): void;
    handleNodeDragEnd(nodeInstance: TreeNodeInstance): void;
    handleHittingChange(type: 'up' | 'down'): void;
    handleNodeHitting(nodeEl?: HTMLElement | null): void;
    handleLabelClick(node: TreeNodeProps): void;
}
export interface TreeSlots {
    node?: (params: TreeNodeSlotParams) => any;
    arrow?: (params: TreeCommonSlotParams) => any;
    label?: (params: TreeCommonSlotParams) => any;
    prefix?: (params: TreeCommonSlotParams) => any;
    suffix?: (params: TreeCommonSlotParams) => any;
    empty?: () => any;
}
export declare const TREE_STATE: InjectionKey<TreeState>;
export declare const TREE_NODE_STATE: InjectionKey<TreeNodeState>;
export declare const defaultKeyConfig: Required<TreeNodeKeyConfig>;