| /* |
| * noVNC: HTML5 VNC client |
| * Copyright (C) 2020 The noVNC Authors |
| * Licensed under MPL 2.0 or any later version (see LICENSE.txt) |
| */ |
| |
| /* Polyfills to provide new APIs in old browsers */ |
| |
| /* Object.assign() (taken from MDN) */ |
| if (typeof Object.assign != 'function') { |
| // Must be writable: true, enumerable: false, configurable: true |
| Object.defineProperty(Object, "assign", { |
| value: function assign(target, varArgs) { // .length of function is 2 |
| 'use strict'; |
| if (target == null) { // TypeError if undefined or null |
| throw new TypeError('Cannot convert undefined or null to object'); |
| } |
| |
| const to = Object(target); |
| |
| for (let index = 1; index < arguments.length; index++) { |
| const nextSource = arguments[index]; |
| |
| if (nextSource != null) { // Skip over if undefined or null |
| for (let nextKey in nextSource) { |
| // Avoid bugs when hasOwnProperty is shadowed |
| if (Object.prototype.hasOwnProperty.call(nextSource, nextKey)) { |
| to[nextKey] = nextSource[nextKey]; |
| } |
| } |
| } |
| } |
| return to; |
| }, |
| writable: true, |
| configurable: true |
| }); |
| } |
| |
| /* CustomEvent constructor (taken from MDN) */ |
| (() => { |
| function CustomEvent(event, params) { |
| params = params || { bubbles: false, cancelable: false, detail: undefined }; |
| const evt = document.createEvent( 'CustomEvent' ); |
| evt.initCustomEvent( event, params.bubbles, params.cancelable, params.detail ); |
| return evt; |
| } |
| |
| CustomEvent.prototype = window.Event.prototype; |
| |
| if (typeof window.CustomEvent !== "function") { |
| window.CustomEvent = CustomEvent; |
| } |
| })(); |
| |
| /* Number.isInteger() (taken from MDN) */ |
| Number.isInteger = Number.isInteger || function isInteger(value) { |
| return typeof value === 'number' && |
| isFinite(value) && |
| Math.floor(value) === value; |
| }; |