/**
 * @license
 * Copyright 2018 Google Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
declare const cssClasses: {
    MENU_SELECTED_LIST_ITEM: string;
    MENU_SELECTION_GROUP: string;
    ROOT: string;
};
declare const strings: {
    ARIA_CHECKED_ATTR: string;
    ARIA_DISABLED_ATTR: string;
    CHECKBOX_SELECTOR: string;
    LIST_SELECTOR: string;
    SELECTED_EVENT: string;
    SKIP_RESTORE_FOCUS: string;
};
declare const numbers: {
    FOCUS_ROOT_INDEX: number;
};
declare enum DefaultFocusState {
    NONE = 0,
    LIST_ROOT = 1,
    FIRST_ITEM = 2,
    LAST_ITEM = 3
}
export { cssClasses, strings, numbers, DefaultFocusState };