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1/**
2 * @license
3 * Copyright 2018 Google Inc.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a copy
6 * of this software and associated documentation files (the "Software"), to deal
7 * in the Software without restriction, including without limitation the rights
8 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
9 * copies of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
21 * THE SOFTWARE.
22 */
23/**
24 * @fileoverview A "ponyfill" is a polyfill that doesn't modify the global prototype chain.
25 * This makes ponyfills safer than traditional polyfills, especially for libraries like MDC.
26 */
27export declare function closest(element: Element, selector: string): Element | null;
28export declare function matches(element: Element, selector: string): boolean;
29/**
30 * Used to compute the estimated scroll width of elements. When an element is
31 * hidden due to display: none; being applied to a parent element, the width is
32 * returned as 0. However, the element will have a true width once no longer
33 * inside a display: none context. This method computes an estimated width when
34 * the element is hidden or returns the true width when the element is visble.
35 * @param {Element} element the element whose width to estimate
36 */
37export declare function estimateScrollWidth(element: Element): number;