import { ReactiveController, ReactiveControllerHost } from 'lit';
import { DropdownController, DropdownHost, DropdownPosition, DropdownSpace } from './dropdown.interface.js';
/**
 * Shared dropdown controller for components that need dropdown functionality
 * Based on the select component's dropdown controller but generalized for reuse
 */
export declare class SharedDropdownController implements ReactiveController, DropdownController {
    private _host;
    private _isOpen;
    private _position;
    private _dropdownElement;
    private _triggerElement;
    constructor(host: ReactiveControllerHost & DropdownHost);
    hostConnected(): void;
    hostDisconnected(): void;
    private handleOutsidePointerDown;
    private handleKeyDown;
    private attachOutsideListeners;
    private detachOutsideListeners;
    /**
     * Check if dropdown is open
     */
    get isOpen(): boolean;
    /**
     * Get current dropdown position
     */
    get position(): DropdownPosition;
    /**
     * Open the dropdown
     */
    open(): void;
    /**
     * Close the dropdown
     */
    close(): void;
    /**
     * Toggle dropdown visibility
     */
    toggle(): void;
    /**
     * Calculate optimal dropdown placement
     */
    calculatePosition(): void;
    /**
     * Reset dropdown position
     */
    resetPosition(): void;
    /**
     * Set dropdown and trigger element references
     */
    setElements(dropdownElement: HTMLElement, triggerElement: HTMLElement): void;
    /**
     * Find dropdown and trigger elements
     */
    private findElements;
    /**
     * Determine optimal dropdown placement
     */
    private determineOptimalPlacement;
    /**
     * Apply calculated position to dropdown element
     */
    private applyPosition;
    /**
     * Calculate available space around trigger
     */
    getAvailableSpace(): DropdownSpace;
    /**
     * Handle window resize to recalculate position
     */
    private handleResize;
    /**
     * Handle scroll to manage dropdown visibility
     */
    private handleScroll;
    /**
     * Handle errors with fallback
     */
    private handleError;
}
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