/**
 * @license
 * Copyright 2020 Google LLC
 * SPDX-License-Identifier: Apache-2.0
 */
import { MDCFoundation } from '@material/base/foundation.js';
import { MDCListAdapter } from './mwc-list-adapter.js';
export declare type MWCListIndex = number | Set<number>;
export interface IndexDiff {
    added: number[];
    removed: number[];
}
export interface SelectedDetail<T extends MWCListIndex = MWCListIndex> {
    index: T;
    diff: T extends Set<number> ? IndexDiff : undefined;
}
export interface ActionDetail {
    index: number;
}
export declare type SingleSelectedEvent = CustomEvent<SelectedDetail<number>>;
export declare type MultiSelectedEvent = CustomEvent<SelectedDetail<Set<number>>>;
export declare type SelectedEvent = SingleSelectedEvent | MultiSelectedEvent;
export declare function isIndexSet(selectedIndex: MWCListIndex): selectedIndex is Set<number>;
export declare function isEventMulti(evt: SelectedEvent): evt is MultiSelectedEvent;
export declare const createSetFromIndex: (index: MWCListIndex) => Set<number>;
export declare class MDCListFoundation extends MDCFoundation<MDCListAdapter> {
    static get strings(): {
        ACTION_EVENT: string;
        SELECTION_CHANGE_EVENT: string;
        ARIA_CHECKED: string;
        ARIA_CHECKED_CHECKBOX_SELECTOR: string;
        ARIA_CHECKED_RADIO_SELECTOR: string;
        ARIA_CURRENT: string;
        ARIA_DISABLED: string;
        ARIA_ORIENTATION: string;
        ARIA_ORIENTATION_HORIZONTAL: string;
        ARIA_ROLE_CHECKBOX_SELECTOR: string;
        ARIA_SELECTED: string;
        ARIA_INTERACTIVE_ROLES_SELECTOR: string;
        ARIA_MULTI_SELECTABLE_SELECTOR: string;
        CHECKBOX_RADIO_SELECTOR: string;
        CHECKBOX_SELECTOR: string;
        CHILD_ELEMENTS_TO_TOGGLE_TABINDEX: string;
        DEPRECATED_SELECTOR: string;
        FOCUSABLE_CHILD_ELEMENTS: string;
        RADIO_SELECTOR: string;
        SELECTED_ITEM_SELECTOR: string;
    };
    static get numbers(): {
        UNSET_INDEX: number;
        TYPEAHEAD_BUFFER_CLEAR_TIMEOUT_MS: number;
    };
    static get defaultAdapter(): MDCListAdapter;
    protected isMulti_: boolean;
    private wrapFocus_;
    private isVertical_;
    private selectedIndex_;
    private focusedItemIndex_;
    private useActivatedClass_;
    private ariaCurrentAttrValue_;
    constructor(adapter?: Partial<MDCListAdapter>);
    /**
     * Sets the private wrapFocus_ variable.
     */
    setWrapFocus(value: boolean): void;
    /**
     * Sets the private wrapFocus_ variable.
     */
    setMulti(value: boolean): void;
    /**
     * Sets the isVertical_ private variable.
     */
    setVerticalOrientation(value: boolean): void;
    /**
     * Sets the useActivatedClass_ private variable.
     */
    setUseActivatedClass(useActivated: boolean): void;
    getSelectedIndex(): MWCListIndex;
    setSelectedIndex(index: MWCListIndex): void;
    /**
     * Focus in handler for the list items.
     */
    handleFocusIn(_: FocusEvent, listItemIndex: number): void;
    /**
     * Focus out handler for the list items.
     */
    handleFocusOut(_: FocusEvent, listItemIndex: number): void;
    /**
     * Key handler for the list.
     */
    handleKeydown(event: KeyboardEvent, isRootListItem: boolean, listItemIndex: number): void;
    /**
     * Click handler for the list.
     */
    handleSingleSelection(index: number, isInteraction: boolean, force?: boolean): void;
    /**
     * Focuses the next element on the list.
     */
    focusNextElement(index: number): number;
    /**
     * Focuses the previous element on the list.
     */
    focusPrevElement(index: number): number;
    focusFirstElement(): number;
    focusLastElement(): number;
    /**
     * @param itemIndex Index of the list item
     * @param isEnabled Sets the list item to enabled or disabled.
     */
    setEnabled(itemIndex: number, isEnabled: boolean): void;
    /**
     * Ensures that preventDefault is only called if the containing element
     * doesn't consume the event, and it will cause an unintended scroll.
     */
    private preventDefaultEvent;
    private setSingleSelectionAtIndex_;
    private setMultiSelectionAtIndex_;
    /**
     * Sets aria attribute for single selection at given index.
     */
    private setAriaForSingleSelectionAtIndex_;
    private setTabindexAtIndex_;
    private setTabindexToFirstSelectedItem_;
    private isIndexValid_;
    private isIndexInRange_;
    /**
     * Sets selected index on user action, toggles checkbox / radio based on
     * toggleCheckbox value. User interaction should not toggle list item(s) when
     * disabled.
     */
    private setSelectedIndexOnAction_;
    toggleMultiAtIndex(index: number, force?: boolean, isInteraction?: boolean): void;
}
export default MDCListFoundation;