import { CSSResultGroup, LitElement, PropertyValues } from 'lit';
/** Drawer positions */
export type DrawerPosition = 'left' | 'right' | 'top' | 'bottom';
/** Drawer size variants */
export type DrawerVariant = 'basic' | 'small' | 'flexible';
export declare class DrawerElement extends LitElement {
    static styles: CSSResultGroup;
    /** Whether drawer is open */
    open: boolean;
    /** Edge it appears from */
    position: DrawerPosition;
    /** Size variant */
    variant: DrawerVariant;
    /** Show backdrop overlay */
    overlay: boolean;
    /** Close when backdrop clicked */
    closeOnOverlayClick: boolean;
    /** Close when ESC pressed */
    closeOnEsc: boolean;
    /** Custom width for horizontal drawers */
    width?: string | number;
    /** Custom height for vertical drawers */
    height?: string | number;
    /** aria-label for panel */
    ariaLabel: string | null;
    /** aria-labelledby for panel */
    ariaLabelledBy: string | null;
    /** Internal: track if opened once (enable transitions) */
    private openedOnce;
    /** Previously focused element to restore on close */
    private previouslyFocused?;
    /** Track timeouts for cleanup */
    private timeouts;
    /** Panel element */
    private panelEl?;
    /** Footer slot element */
    private footerSlot?;
    /** Whether footer has any projected content */
    private hasFooterContent;
    connectedCallback(): void;
    disconnectedCallback(): void;
    /** Public: programmatically open */
    openDrawer(): void;
    /** Public: programmatically close */
    closeDrawer(): void;
    /** Public: toggle state */
    toggle(): void;
    protected willUpdate(changed: PropertyValues<this>): void;
    protected firstUpdated(): void;
    protected updated(changed: PropertyValues<this>): void;
    render(): import('lit').TemplateResult<1>;
    private _inlineStyle;
    private _resolveSize;
    private _autoFocus;
    private _getFocusable;
    private _afterOpen;
    private _beforeClose;
    private _afterClosed;
    private _restoreFocus;
    private _lockBodyScroll;
    private _unlockBodyScroll;
    private _clearTimeouts;
    private _emitOpenChange;
    private onBackdropClick;
    private _boundOnKeydown?;
    private onKeydown;
    private _handleTabKey;
    private _handleFooterSlotChange;
    private _evaluateFooterSlot;
}
declare global {
    interface HTMLElementTagNameMap {
        'cds-drawer': DrawerElement;
    }
}