import { LitElement, nothing, PropertyValues } from 'lit';
import '@digital-realty/ix-field/ix-field.js';
import '@digital-realty/ix-menu/ix-menu.js';
import '@digital-realty/ix-menu/ix-menu-item.js';
import '@digital-realty/ix-icon-button/ix-icon-button.js';
import '@digital-realty/ix-button';
import { IxMenu } from '@digital-realty/ix-menu';
import { onReportValidity } from '@material/web/labs/behaviors/on-report-validity.js';
import { createValidator, getValidityAnchor } from '@material/web/labs/behaviors/constraint-validation.js';
import { getFormValue } from '@material/web/labs/behaviors/form-associated.js';
import { Validator } from '@material/web/labs/behaviors/validators/validator.js';
export interface IFilterSelectOption {
    value: string;
    label: string;
}
declare const filterSelectBaseClass: import("@material/web/labs/behaviors/mixin.js").MixinReturn<import("@material/web/labs/behaviors/mixin.js").MixinReturn<import("@material/web/labs/behaviors/mixin.js").MixinReturn<(abstract new (...args: any[]) => object) & (abstract new (...args: any[]) => import("@material/web/labs/behaviors/element-internals.js").WithElementInternals) & typeof LitElement & import("@material/web/labs/behaviors/form-associated.js").FormAssociatedConstructor, import("@material/web/labs/behaviors/form-associated.js").FormAssociated>, import("@material/web/labs/behaviors/constraint-validation.js").ConstraintValidation>, import("@material/web/labs/behaviors/on-report-validity.js").OnReportValidity>;
export declare class IxFilterSelect extends filterSelectBaseClass {
    static get styles(): import("lit").CSSResult[];
    /** @nocollapse */
    static shadowRootOptions: {
        delegatesFocus: boolean;
        mode: ShadowRootMode;
        slotAssignment?: SlotAssignmentMode | undefined;
        customElements?: CustomElementRegistry | undefined;
        registry?: CustomElementRegistry | undefined;
    };
    menu: IxMenu;
    readonly input: HTMLInputElement;
    private readonly field;
    options: IFilterSelectOption[];
    value: string;
    label: string;
    errorText: string;
    noFilteredOptions: string;
    supportingText: string;
    error: boolean;
    tabIndex: number;
    required: boolean;
    onViewMoreButtonClick: any;
    isViewMoreButtonVisible: boolean;
    isViewMoreButtonLoading: boolean;
    viewMoreButtonLabel: string;
    placeholder?: string;
    /**
     * Used to prevent IxFilterSelect from opening the menu. This is useful
     * when options are yet to be provided via an async process.
     */
    disableMenu: boolean;
    /**
     * Optional property to control how the options are filtered based on value in the field.
     * If not provided, defaults to case-insensitive substring match on the label.
     */
    filterFunctionGenerator?: (filterValue: string) => (option: IFilterSelectOption) => boolean;
    /**
     * Exposed method to open and close the menu
     */
    setMenuOpen(value: boolean): void;
    private filteredOptions;
    selectedItem: IFilterSelectOption | undefined;
    private filterValue;
    /**
     * When set, either opens or closes the menu on the next render.
     * Also reflects when menu is opened from IxMenu.
     */
    private menuOpen;
    /**
     * Returns true when the text field has been interacted with. Native
     * validation errors only display in response to user interactions.
     */
    private dirty;
    private focused;
    /**
     * Whether or not a native error has been reported via `reportValidity()`.
     */
    private nativeError;
    /**
     * The validation message displayed from a native error via
     * `reportValidity()`.
     */
    private nativeErrorText;
    private menuOpening;
    private get hasError();
    private getErrorText;
    private getInput;
    firstUpdated(): void;
    protected updated(changedProperties: PropertyValues): void;
    handleMenuOpening: () => void;
    menuOpened: () => void;
    setMenuStyles: () => void;
    showMenu: () => void;
    handleMenuClosed: () => void;
    handleInput: (e: InputEvent) => void;
    selectItem: (item: IFilterSelectOption | undefined) => void;
    toggleOpen: (e: Event) => void;
    filterOptions(): void;
    clear(): void;
    /** @private */
    formResetCallback(): void;
    /**
     * Reset the text field to its default value.
     */
    reset(): void;
    attributeChangedCallback(attribute: string, newValue: string | null, oldValue: string | null): void;
    [createValidator](): Validator<unknown>;
    [getValidityAnchor](): HTMLElement | null;
    [onReportValidity](invalidEvent: Event | null): void;
    disabled: boolean;
    name: string;
    [getFormValue](): string;
    formStateRestoreCallback(formState: string): void;
    private handleFocusChange;
    focus(): void;
    renderViewMoreButton(): typeof nothing | import("lit-html").TemplateResult<1>;
    render(): import("lit-html").TemplateResult<1>;
}
export {};