/**
 * @license
 *-------------------------------------------------------------------------------------------
 * Copyright © 2026 Progress Software Corporation. All rights reserved.
 * Licensed under commercial license. See LICENSE.md in the package root for more information
 *-------------------------------------------------------------------------------------------
 */
import { default as PropTypes } from 'prop-types';
import { CompositeFilterDescriptor } from '@progress/kendo-data-query';
import { BaseEvent } from '@progress/kendo-react-common';
import { FieldSettings } from './FieldSettings.js';
import * as React from 'react';
/**
 * @hidden
 * CSS selectors for keyboard navigation.
 * Uses only structural CSS classes - no data attributes or title attributes
 * to ensure stability across localizations and DOM changes.
 */
export declare const selectors: any;
/**
 * The FilterChangeEvent object.
 */
export interface FilterChangeEvent extends BaseEvent<Filter> {
    /**
     * The changed composite filter descriptor.
     */
    filter: CompositeFilterDescriptor;
}
/**
 * The props of the Filter component.
 */
export interface FilterProps {
    /**
     * Adds custom CSS classes to the Filter's root element.
     */
    className?: string;
    /**
     * Applies custom styles to the Filter's root element.
     */
    style?: React.CSSProperties;
    /**
     * Defines the field settings for the Filter. Each field represents a filterable column.
     *
     * @example
     * fields: [
     *   { name: "ProductName", label: "Product Name", type: "string" },
     *   { name: "Price", label: "Price", type: "number" }
     * ]
     */
    fields: Array<FieldSettings>;
    /**
     * Specifies the composite filter descriptor value.
     * This object defines the current state of the applied filters.
     *
     * @example
     * value: {
     *   logic: "and",
     *   filters: [
     *     { field: "ProductName", operator: "contains", value: "Chai" },
     *     { field: "Price", operator: "gte", value: 20 }
     *   ]
     * }
     */
    value: CompositeFilterDescriptor;
    /**
     * Provides an accessible label for the Filter's container component.
     * Similar to the [aria-label](https://developer.mozilla.org/en-US/docs/Web/Accessibility/ARIA/Attributes/aria-label) attribute.
     *
     * @remarks
     * This property is related to accessibility.
     */
    ariaLabel?: string;
    /**
     * Provides an accessible label for the Filter's underlying Group component.
     *
     * @remarks
     * This property is related to accessibility.
     */
    ariaLabelGroup?: string;
    /**
     * Provides an accessible label for the Filter's underlying Expression component.
     *
     * @remarks
     * This property is related to accessibility.
     */
    ariaLabelExpression?: string;
    /**
     * The Filter onChange event.
     *
     * @param event - The event object containing the updated filter descriptor.
     */
    onChange: (event: FilterChangeEvent) => void;
    /**
     * Specifies the initial composite filter descriptor used when a new group is created.
     *
     * @example
     * defaultGroupFilter: {
     *   logic: "and",
     *   filters: []
     * }
     */
    defaultGroupFilter?: CompositeFilterDescriptor;
}
/**
 * Represents the [KendoReact Filter component](https://www.telerik.com/kendo-react-ui/components/datatools/filter).
 */
export declare class Filter extends React.Component<FilterProps> {
    /**
     * @hidden
     */
    static propTypes: {
        className: PropTypes.Requireable<string>;
        style: PropTypes.Requireable<object>;
        fields: (props: FilterProps, propName: string) => Error | null;
        ariaLabelGroup: PropTypes.Requireable<string>;
        ariaLabelExpression: PropTypes.Requireable<string>;
        value: PropTypes.Validator<object>;
        onChange: PropTypes.Validator<(...args: any[]) => any>;
    };
    /**
     * @hidden
     */
    wrapperRef: React.RefObject<HTMLDivElement | null>;
    private navigation?;
    private readonly showLicenseWatermark;
    private readonly licenseMessage?;
    constructor(props: FilterProps);
    /**
     * @hidden
     */
    componentDidMount(): void;
    /**
     * @hidden
     */
    render(): React.JSX.Element;
    private onFilterChange;
    private onGroupRemove;
    /**
     * @hidden
     * Shared vertical navigation logic for ArrowUp / ArrowDown keys.
     */
    private navigateVertical;
    private onKeyDown;
    /**
     * Classifies the currently active element for navigation decisions.
     */
    private classifyActive;
}