/**
 * Tree View Component
 * Hierarchical tree structure with expand/collapse functionality
 * Styled with sharp edges and ">" toggles like TOC
 */
export interface TreeNode {
    id: string;
    label: string;
    icon?: string;
    children?: TreeNode[];
    isExpanded?: boolean;
    metadata?: Record<string, any>;
}
export interface TreeViewOptions {
    container: HTMLElement;
    data: TreeNode[];
    expandedByDefault?: boolean;
    onNodeClick?: (node: TreeNode) => void;
    onNodeToggle?: (node: TreeNode, isExpanded: boolean) => void;
}
export declare class TreeView {
    private container;
    private data;
    private options;
    private nodeElements;
    constructor(options: TreeViewOptions);
    /**
     * Set default expanded state for all nodes
     */
    private setDefaultExpandedState;
    /**
     * Render the tree view
     */
    private render;
    /**
     * Create a list element for tree nodes
     */
    private createList;
    /**
     * Create a tree item element
     */
    private createItem;
    /**
     * Toggle node expansion
     */
    private toggleNode;
    /**
     * Expand a node by ID
     */
    expandNode(nodeId: string): void;
    /**
     * Collapse a node by ID
     */
    collapseNode(nodeId: string): void;
    /**
     * Expand all nodes
     */
    expandAll(): void;
    /**
     * Collapse all nodes
     */
    collapseAll(): void;
    /**
     * Set expanded state for all nodes
     */
    private setAllExpanded;
    /**
     * Find a node by ID
     */
    private findNode;
    /**
     * Update tree data and re-render
     */
    updateData(data: TreeNode[]): void;
    /**
     * Get current tree data
     */
    getData(): TreeNode[];
    /**
     * Destroy the tree view
     */
    destroy(): void;
}