/**
 * Copyright Aquera Inc 2023
 *
 * This source code is licensed under the BSD-3-Clause license found in the
 * LICENSE file in the root directory of this source tree.
 */
import { LitElement, CSSResultGroup } from 'lit';
import { NileOption } from '../nile-option';
/**
 * @summary Selects allow you to choose items from a menu of predefined options.
 *
 * @event nile-change - Emitted when the control's value changes.
 */
declare type selectOption = {
    name: string;
    value: string | number;
};
export declare class NileSelect extends LitElement {
    static styles: CSSResultGroup;
    dropDownOptionsArray: selectOption[];
    /**
     * The current value of the select, submitted as a name/value pair with form data. When `multiple` is enabled, the
     * value will be a space-delimited list of values based on the options selected.
     */
    value: string | string[];
    /** Allows more than one option to be selected. */
    multiple: boolean;
    /** Allows more than one option to be selected. */
    placeholder: string;
    /** Allows to search on option */
    searchEnabled: boolean;
    /** Miximum tags to show*/
    maxTags: number;
    isOpen: boolean;
    private hasFocus;
    displayLabel: string;
    currentOption: NileOption | undefined;
    selectedOptions: NileOption[];
    searchString: string;
    showSelected: boolean;
    private readonly hasSlotController;
    constructor();
    render(): import("lit-html").TemplateResult<1>;
    /**
     * Connect the component and bind handleOutsideClick to the document click event.
     */
    connectedCallback(): void;
    /**
     * Disconnect the component and unbind handleOutsideClick from the document click event.
     */
    disconnectedCallback(): void;
    /**
     * Handles the click event outside the component, and closes the component if necessary.
     * @param event - The click event.
     */
    handleOutsideClick(event: MouseEvent): void;
    /**
     * Handles the click event on the footer.
     * @param event - The click event.
     */
    handleFooterClick(event: MouseEvent): void;
    onSearch(event: Event): void;
    toggleOptions(): void;
    handleSearchInputClick(event: Event): void;
    private handleTagRemove;
    handleOptionClick(event: MouseEvent): void;
    private toggleOptionSelection;
    /**
     * Sets the selected option(s)
     * @param option - the selected option(s)
     */
    private setSelectedOptions;
    /**
     * Gets an array of all <nile-option> elements
     * @returns an array of <nile-option> elements
     */
    private getAllOptions;
    /**
     * Gets the text content of the element and trims it
     * @returns the trimmed text content
     */
    getTextLabel(): string;
    /**
     * This method must be called whenever the selection changes. It will update the selected options cache, the current
     * value, and the display value
     */
    private selectionChanged;
    /**
     * Sets the current option, which is the option the user is currently interacting with (e.g. via keyboard). Only one
     * option may be "current" at a time.
     * @param option - the target option to select
     */
    private setCurrentOption;
    /**
     * Toggles the display of selected options in the dropdown
     * @param event - the event object
     */
    private toggleShowSelected;
    /**
     * Handles the checkbox click event and toggles the display of selected options in the dropdown
     * @param event - the event object
     */
    private handleCheckBox;
    /**
     * Deselects all options and updates the value, selectedOptions, and displayLabel properties accordingly
     */
    private unSlectAll;
    handleValueChange(): void;
    handleOpenChange(): void;
}
declare global {
    interface HTMLElementTagNameMap {
        'nile-select': NileSelect;
    }
}
export {};