import { RadiantElement } from '@ecopages/radiant';
import type { EventEmitter } from '@ecopages/radiant/tools/event-emitter';
export type RuiSelectSelectionMode = 'single' | 'multiple';
export type RuiSelectProps = {
    value?: string;
    /** Accessible name when there is no visible `RuiLabel` associated with the trigger. */
    label?: string;
    placeholder?: string;
    disabled?: boolean;
    selectionMode?: RuiSelectSelectionMode;
    /**
     * When `selectionMode` is `multiple`, whether selecting an option closes the popup.
     * Defaults to false for multiple and true for single.
     */
    shouldCloseOnSelect?: boolean;
};
export type RuiSelectChangeDetail = {
    value: string;
};
/**
 * `<rui-select>` — a select-only combobox with a button trigger and listbox popup.
 *
 * Implements the APG Combobox pattern (select-only variant). DOM focus stays on the
 * trigger button; visual focus moves into the popup via `aria-activedescendant`.
 *
 * Pair with `RuiLabel` (sibling, or via `RuiField`) for the visible name.
 * Compose with `data-select-trigger`, `data-select-toggle`, `data-select-value`, `data-select-listbox`
 * (popup shell), and `RuiListbox` with `embedded` for options.
 *
 * Wrap the listbox in `RuiAutocomplete` to add search filtering.
 * Use `RuiTagGroup` inside `RuiSelectValue` for multi-select chip display.
 *
 * @see https://www.w3.org/WAI/ARIA/apg/patterns/combobox/examples/combobox-select-only/
 * @element rui-select
 * @fires rui-change
 */
export declare class RuiSelect extends RadiantElement {
    value: string;
    label: string;
    placeholder: string;
    disabled: boolean;
    selectionMode: RuiSelectSelectionMode;
    shouldCloseOnSelect: boolean | undefined;
    changeEvent: EventEmitter<RuiSelectChangeDetail>;
    private open;
    private readonly uid;
    private readonly listboxBehavior;
    rootTarget: HTMLElement;
    private get listboxId();
    private get triggerId();
    private isMultiple;
    private closesOnSelect;
    private getSelectedValues;
    private setSelectedValues;
    private getSearchInput;
    private hasSearchInput;
    /** Element that receives `aria-activedescendant` while the popup is open. */
    private getActiveDescendantHost;
    private resetSearchFilter;
    private syncSearchInput;
    private focusPopupInput;
    /**
     * Resolves the multi-select chip host inside the value slot.
     *
     * @remarks
     * During Storybook/SSR upgrade, `querySelector` can return the host before
     * `rui-tag-group` is defined — treat that as absent until `setItems` exists.
     */
    private getTagGroup;
    private hasTagGroup;
    private syncTagGroup;
    private syncTagGroupPlaceholder;
    private removeSelectedValue;
    private getTrigger;
    private getToggle;
    private getValueElement;
    private getListboxPopup;
    private getListbox;
    private getListboxHost;
    private getOptions;
    private getOptionLabel;
    private getOptionValue;
    private ensureOptionIds;
    private getAccessibleName;
    private syncLabel;
    private syncTrigger;
    private syncToggle;
    private syncListboxHost;
    private syncValueDisplay;
    private syncOptionSelection;
    private setOpen;
    private selectOption;
    private handleListboxKeydown;
    private handleTriggerKeydown;
    private initialize;
    protected onConnected(): void;
    disconnectedCallback(): void;
    onPropsUpdated(): void;
    onTriggerClick(event: Event): void;
    onTriggerKeydown(event: KeyboardEvent): void;
    onSearchKeydown(event: KeyboardEvent): void;
    onSearchInput(): void;
    onTagRemove(event: Event): void;
    onTagClick(event: Event): void;
    onOptionPointerOver(event: Event): void;
    onOptionMouseDown(event: Event): void;
    onOptionClick(event: Event): void;
    onFocusOut(event: FocusEvent): void;
    onDocumentPointerDown(event: PointerEvent): void;
}