import { CSSResultGroup, PropertyValues, TemplateResult, LitElement } from 'lit';

declare const SbbAutocompleteElement_base: import('../core/mixins.js').AbstractConstructor<import('../core/mixins.js').SbbNegativeMixinType> & import('../core/mixins.js').AbstractConstructor<import('../core/mixins.js').SbbHydrationMixinType> & typeof LitElement;
/**
 * Combined with a native input, it displays a panel with a list of available options.
 *
 * @slot - Use the unnamed slot to add `sbb-option` or `sbb-optgroup` elements to the `sbb-autocomplete`.
 * @event {CustomEvent<void>} willOpen - Emits whenever the `sbb-autocomplete` starts the opening transition. Can be canceled.
 * @event {CustomEvent<void>} didOpen - Emits whenever the `sbb-autocomplete` is opened.
 * @event {CustomEvent<void>} willClose - Emits whenever the `sbb-autocomplete` begins the closing transition. Can be canceled.
 * @event {CustomEvent<void>} didClose - Emits whenever the `sbb-autocomplete` is closed.
 * @cssprop [--sbb-autocomplete-z-index=var(--sbb-overlay-default-z-index)] - To specify a custom stack order,
 * the `z-index` can be overridden by defining this CSS variable. The default `z-index` of the
 * component is set to `var(--sbb-overlay-default-z-index)` with a value of `1000`.
 */
export declare class SbbAutocompleteElement extends SbbAutocompleteElement_base {
    static styles: CSSResultGroup;
    static readonly events: {
        readonly willOpen: "willOpen";
        readonly didOpen: "didOpen";
        readonly willClose: "willClose";
        readonly didClose: "didClose";
    };
    /**
     * The element where the autocomplete will attach; accepts both an element's id or an HTMLElement.
     * If not set, will search for the first 'sbb-form-field' ancestor.
     */
    origin?: string | HTMLElement;
    /**
     * The input element that will trigger the autocomplete opening; accepts both an element's id or an HTMLElement.
     * By default, the autocomplete will open on focus, click, input or `ArrowDown` keypress of the 'trigger' element.
     * If not set, will search for the first 'input' child of a 'sbb-form-field' ancestor.
     */
    trigger?: string | HTMLInputElement;
    /** Whether the icon space is preserved when no icon is set. */
    preserveIconSpace?: boolean;
    private set _state(value);
    private get _state();
    /** Emits whenever the `sbb-autocomplete` starts the opening transition. */
    private _willOpen;
    /** Emits whenever the `sbb-autocomplete` is opened. */
    private _didOpen;
    /** Emits whenever the `sbb-autocomplete` begins the closing transition. */
    private _willClose;
    /** Emits whenever the `sbb-autocomplete` is closed. */
    private _didClose;
    private _overlay;
    private _optionContainer;
    /** Returns the element where autocomplete overlay is attached to. */
    get originElement(): HTMLElement;
    private _originElement?;
    /** Returns the trigger element. */
    get triggerElement(): HTMLInputElement | undefined;
    private _triggerElement;
    private _triggerEventsController;
    private _openPanelEventsController;
    private _overlayId;
    private _activeItemIndex;
    private _didLoad;
    private _isPointerDownEventOnMenu;
    private _abort;
    /** The autocomplete should inherit 'readonly' state from the trigger. */
    private get _readonly();
    private get _options();
    /** Opens the autocomplete. */
    open(): void;
    /** Closes the autocomplete. */
    close(): void;
    /** Removes trigger click listener on trigger change. */
    private _resetOriginClickListener;
    /** Removes trigger click listener on trigger change. */
    private _resetTriggerClickListener;
    /** When an option is selected, update the input value and close the autocomplete. */
    private _onOptionSelected;
    private _onOptionClick;
    connectedCallback(): void;
    protected willUpdate(changedProperties: PropertyValues<this>): void;
    protected firstUpdated(changedProperties: PropertyValues<this>): void;
    private _syncNegative;
    disconnectedCallback(): void;
    private _componentSetup;
    /**
     * Retrieve the element where the autocomplete will be attached.
     * @returns 'origin' or the first 'sbb-form-field' ancestor.
     */
    private _findOriginElement;
    /**
     * Retrieve the element that will trigger the autocomplete opening.
     * @returns 'trigger' or the first 'input' inside the origin element.
     */
    private _getTriggerElement;
    private _bindTo;
    private _setupTriggerEvents;
    private _setOverlayPosition;
    /** On open/close animation end.
     *  In rare cases it can be that the animationEnd event is triggered twice.
     *  To avoid entering a corrupt state, exit when state is not expected.
     */
    private _onAnimationEnd;
    private _onOpenAnimationEnd;
    private _onCloseAnimationEnd;
    private _attachOpenPanelEvents;
    private _pointerDownListener;
    private _closeOnBackdropClick;
    private _closedPanelKeyboardInteraction;
    private _openedPanelKeyboardInteraction;
    private _selectByKeyboard;
    private _setNextActiveOption;
    private _resetActiveElement;
    /** Highlight the searched text on the options. */
    private _highlightOptions;
    private _setTriggerAttributes;
    private _removeTriggerAttributes;
    private _handleSlotchange;
    protected render(): TemplateResult;
}
declare global {
    interface HTMLElementTagNameMap {
        'sbb-autocomplete': SbbAutocompleteElement;
    }
}
export {};
//# sourceMappingURL=autocomplete.d.ts.map