// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

/**
 * @fileoverview Externs for stuff not added to the Closure compiler yet, but
 * should get added.
 * @externs
 */

/**
 * @see https://drafts.fxtf.org/geometry-1/#domrectreadonly
 * TODO(scottchen): Remove this once it is added to Closure Compiler itself.
 */
class DOMRectReadOnly {
  /**
   * @param {number} x
   * @param {number} y
   * @param {number} width
   * @param {number} height
   */
  constructor(x, y, width, height) {
    /** @type {number} */
    this.x;
    /** @type {number} */
    this.y;
    /** @type {number} */
    this.width;
    /** @type {number} */
    this.height;
    /** @type {number} */
    this.top;
    /** @type {number} */
    this.right;
    /** @type {number} */
    this.bottom;
    /** @type {number} */
    this.left;
  }

  /**
   * @param {{x: number, y: number, width: number, height: number}=} rectangle
   * @return {DOMRectReadOnly}
   */
  fromRect(rectangle) {}
}

/**
 * @see https://wicg.github.io/ResizeObserver/#resizeobserverentry
 * @typedef {{contentRect: DOMRectReadOnly,
 *            target: Element}}
 * TODO(scottchen): Remove this once it is added to Closure Compiler itself.
 */
let ResizeObserverEntry;

/**
 * @see https://wicg.github.io/ResizeObserver/#api
 * TODO(scottchen): Remove this once it is added to Closure Compiler itself.
 */
class ResizeObserver {
  /**
   * @param {!function(Array<ResizeObserverEntry>, ResizeObserver)} callback
   */
  constructor(callback) {}

  disconnect() {}

  /** @param {Element} target */
  observe(target) {}

  /** @param {Element} target */
  unobserve(target) {}
}