import { InjectionKey } from 'vue';
import { CascaderNode, CascaderPath } from './types';
/**
 * What a level needs from the cascader that owns it.
 *
 * Levels are recursive and each one renders inside its parent's floating panel,
 * so the tree can be arbitrarily deep — threading a dozen props through every
 * hop would mean every level re-declaring state it only forwards. These are
 * getters rather than refs so a level reads the live value during render
 * without the cascader having to hand out its internals.
 *
 * Internal: not exported from the package barrel.
 */
export interface CascaderLevelContext {
    multiple: () => boolean;
    disabled: () => boolean;
    expandTrigger: () => 'click' | 'hover' | 'both';
    /** Sizing for a child panel; the root panel is sized by the cascader itself. */
    panelMinWidth: () => number;
    panelMaxWidth: () => number;
    panelMaxHeight: () => number;
    isLeaf: (node: CascaderNode, path: CascaderPath) => boolean;
    childrenOf: (node: CascaderNode, path: CascaderPath) => CascaderNode[];
    ensureChildren: (node: CascaderNode, path: CascaderPath, level: number) => Promise<void>;
    isLoading: (path: CascaderPath) => boolean;
    isChecked: (path: CascaderPath) => boolean;
    /** True when `path` is the active path or a prefix of it: the trail stays lit. */
    isOnActivePath: (path: CascaderPath) => boolean;
    select: (path: CascaderPath) => void;
    setActivePath: (path: CascaderPath) => void;
    pathKey: (path: CascaderPath) => string;
}
export declare const CASCADER_CONTEXT: InjectionKey<CascaderLevelContext>;