2017-03-02 03:30:21 +00:00
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import Iterator from 'es6-iterator';
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2017-02-14 13:59:49 +00:00
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import BackgroundTimer from 'react-native-background-timer';
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2017-02-15 17:19:36 +00:00
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import 'url-polyfill'; // Polyfill for URL constructor
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2017-02-14 13:59:49 +00:00
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2016-10-05 14:36:59 +00:00
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/**
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* Gets the first common prototype of two specified Objects (treating the
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* objects themselves as prototypes as well).
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*
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* @param {Object} a - The first prototype chain to climb in search of a common
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* prototype.
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* @param {Object} b - The second prototype chain to climb in search of a common
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* prototype.
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* @returns {Object|undefined} - The first common prototype of a and b.
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*/
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function _getCommonPrototype(a, b) {
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// Allow the arguments to be prototypes themselves.
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if (a === b) {
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return a;
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}
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let p;
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if ((p = Object.getPrototypeOf(a)) && (p = _getCommonPrototype(b, p))) {
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return p;
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}
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if ((p = Object.getPrototypeOf(b)) && (p = _getCommonPrototype(a, p))) {
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return p;
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}
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return undefined;
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}
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/**
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* Implements an absolute minimum of the common logic of Document.querySelector
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* and Element.querySelector. Implements the most simple of selectors necessary
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* to satisfy the call sites at the time of this writing i.e. select by tagName.
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*
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* @param {Node} node - The Node which is the root of the tree to query.
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* @param {string} selectors - The group of CSS selectors to match on.
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* @returns {Element} - The first Element which is a descendant of the specified
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* node and matches the specified group of selectors.
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*/
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function _querySelector(node, selectors) {
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let element = null;
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node && _visitNode(node, n => {
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if (n.nodeType === 1 /* ELEMENT_NODE */
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&& n.nodeName === selectors) {
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element = n;
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return true;
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}
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return false;
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});
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return element;
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}
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/**
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* Visits each Node in the tree of a specific root Node (using depth-first
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* traversal) and invokes a specific callback until the callback returns true.
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*
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* @param {Node} node - The root Node which represents the tree of Nodes to
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* visit.
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* @param {Function} callback - The callback to invoke with each visited Node.
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* @returns {boolean} - True if the specified callback returned true for a Node
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* (at which point the visiting stopped); otherwise, false.
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*/
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function _visitNode(node, callback) {
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if (callback(node)) {
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return true;
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}
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/* eslint-disable no-param-reassign, no-extra-parens */
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if ((node = node.firstChild)) {
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do {
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if (_visitNode(node, callback)) {
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return true;
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}
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} while ((node = node.nextSibling));
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}
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/* eslint-enable no-param-reassign, no-extra-parens */
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return false;
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}
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(global => {
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const DOMParser = require('xmldom').DOMParser;
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// addEventListener
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//
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// Required by:
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// - jQuery
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if (typeof global.addEventListener === 'undefined') {
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// eslint-disable-next-line no-empty-function
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global.addEventListener = () => {};
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}
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2017-03-02 03:30:21 +00:00
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// Array.prototype[@@iterator]
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//
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// Required by:
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// - for...of statement use(s) in lib-jitsi-meet
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const arrayPrototype = Array.prototype;
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if (typeof arrayPrototype['@@iterator'] === 'undefined') {
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arrayPrototype['@@iterator'] = function() {
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return new Iterator(this);
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};
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}
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2016-10-05 14:36:59 +00:00
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// document
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//
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// Required by:
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// - jQuery
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// - lib-jitsi-meet/modules/RTC/adapter.screenshare.js
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// - Strophe
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if (typeof global.document === 'undefined') {
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const document
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= new DOMParser().parseFromString(
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2017-02-15 17:19:36 +00:00
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'<html><head></head><body></body></html>',
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'text/xml');
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2016-10-05 14:36:59 +00:00
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// document.addEventListener
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//
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// Required by:
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// - jQuery
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if (typeof document.addEventListener === 'undefined') {
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// eslint-disable-next-line no-empty-function
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document.addEventListener = () => {};
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}
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// Document.querySelector
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//
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// Required by:
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// - strophejs-plugins/caps/strophe.caps.jsonly.js
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const documentPrototype = Object.getPrototypeOf(document);
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if (documentPrototype) {
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if (typeof documentPrototype.querySelector === 'undefined') {
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documentPrototype.querySelector = function(selectors) {
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return _querySelector(this.elementNode, selectors);
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};
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}
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}
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// Element.querySelector
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//
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// Required by:
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// - strophejs-plugins/caps/strophe.caps.jsonly.js
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const elementPrototype
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= Object.getPrototypeOf(document.documentElement);
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2017-02-15 17:04:10 +00:00
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if (elementPrototype) {
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if (typeof elementPrototype.querySelector === 'undefined') {
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elementPrototype.querySelector = function(selectors) {
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return _querySelector(this, selectors);
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};
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}
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// Element.innerHTML
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//
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// Required by:
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// - jQuery's .append method
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if (!elementPrototype.hasOwnProperty('innerHTML')) {
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Object.defineProperty(elementPrototype, 'innerHTML', {
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get() {
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return this.childNodes.toString();
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},
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set(innerHTML) {
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// MDN says: removes all of element's children, parses
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// the content string and assigns the resulting nodes as
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// children of the element.
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// Remove all of element's children.
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this.textContent = '';
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// Parse the content string.
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const d
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= new DOMParser().parseFromString(
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`<div>${innerHTML}</div>`,
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'text/xml');
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// Assign the resulting nodes as children of the
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// element.
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const documentElement = d.documentElement;
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let child;
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// eslint-disable-next-line no-cond-assign
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while (child = documentElement.firstChild) {
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this.appendChild(child);
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}
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}
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});
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}
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2016-10-05 14:36:59 +00:00
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}
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// FIXME There is a weird infinite loop related to console.log and
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// Document and/or Element at the time of this writing. Work around it
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// by patching Node and/or overriding console.log.
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const nodePrototype
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= _getCommonPrototype(documentPrototype, elementPrototype);
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if (nodePrototype
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// XXX The intention was to find Node from which Document and
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// Element extend. If for whatever reason we've reached Object,
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// then it doesn't sound like what expected.
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&& nodePrototype !== Object.getPrototypeOf({})) {
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// Override console.log.
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const console = global.console;
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if (console) {
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const loggerLevels = require('jitsi-meet-logger').levels;
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Object.keys(loggerLevels).forEach(key => {
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const level = loggerLevels[key];
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const consoleLog = console[level];
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/* eslint-disable prefer-rest-params */
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if (typeof consoleLog === 'function') {
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console[level] = function(...args) {
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const length = args.length;
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for (let i = 0; i < length; ++i) {
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let arg = args[i];
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if (arg
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&& typeof arg !== 'string'
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// Limit the console.log override to
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// Node (instances).
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&& nodePrototype.isPrototypeOf(arg)) {
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const toString = arg.toString;
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if (toString) {
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arg = toString.call(arg);
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}
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}
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args[i] = arg;
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}
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consoleLog.apply(this, args);
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};
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}
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/* eslint-enable prefer-rest-params */
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});
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}
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}
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global.document = document;
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}
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// location
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if (typeof global.location === 'undefined') {
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global.location = {
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href: ''
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};
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}
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const navigator = global.navigator;
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if (navigator) {
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// platform
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//
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// Required by:
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// - lib-jitsi-meet/modules/RTC/adapter.screenshare.js
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if (typeof navigator.platform === 'undefined') {
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navigator.platform = '';
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}
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// plugins
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//
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// Required by:
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// - lib-jitsi-meet/modules/RTC/adapter.screenshare.js
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if (typeof navigator.plugins === 'undefined') {
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navigator.plugins = [];
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}
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// userAgent
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//
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// Required by:
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// - lib-jitsi-meet/modules/RTC/adapter.screenshare.js
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// - lib-jitsi-meet/modules/RTC/RTCBrowserType.js
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(() => {
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const reactNativePackageJSON = require('react-native/package.json');
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let userAgent = reactNativePackageJSON.name || 'react-native';
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const version = reactNativePackageJSON.version;
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if (version) {
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userAgent += `/${version}`;
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}
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if (typeof navigator.userAgent !== 'undefined') {
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const s = navigator.userAgent.toString();
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if (s.length > 0 && s.indexOf(userAgent) === -1) {
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userAgent = `${s} ${userAgent}`;
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}
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}
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navigator.userAgent = userAgent;
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})();
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}
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2016-12-11 23:28:19 +00:00
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// performance
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if (typeof global.performance === 'undefined') {
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global.performance = {
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now() {
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return 0;
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}
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};
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}
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// sessionStorage
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//
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// Required by:
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// - Strophe
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if (typeof global.sessionStorage === 'undefined') {
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global.sessionStorage = {
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/* eslint-disable no-empty-function */
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getItem() {},
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removeItem() {},
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setItem() {}
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/* eslint-enable no-empty-function */
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};
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}
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2016-10-05 14:36:59 +00:00
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// WebRTC
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require('./polyfills-webrtc');
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// XMLHttpRequest
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if (global.XMLHttpRequest) {
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const prototype = global.XMLHttpRequest.prototype;
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// XMLHttpRequest.responseXML
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//
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// Required by:
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// - Strophe
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2017-02-15 17:19:36 +00:00
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if (prototype && !prototype.hasOwnProperty('responseXML')) {
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2016-10-05 14:36:59 +00:00
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Object.defineProperty(prototype, 'responseXML', {
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get() {
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const responseText = this.responseText;
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let responseXML;
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if (responseText) {
|
2017-02-15 17:19:36 +00:00
|
|
|
responseXML
|
|
|
|
|
= new DOMParser().parseFromString(
|
|
|
|
|
responseText,
|
|
|
|
|
'text/xml');
|
2016-10-05 14:36:59 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return responseXML;
|
|
|
|
|
}
|
|
|
|
|
});
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2017-02-14 13:59:49 +00:00
|
|
|
// Timers
|
|
|
|
|
//
|
2017-02-15 17:19:36 +00:00
|
|
|
// React Native's timers won't run while the app is in the background, this
|
|
|
|
|
// is a known limitation. Replace them with a background-friendly
|
2017-02-14 13:59:49 +00:00
|
|
|
// alternative.
|
|
|
|
|
//
|
|
|
|
|
// Required by:
|
|
|
|
|
// - lib-jitsi-meet
|
|
|
|
|
// - Strophe
|
|
|
|
|
global.clearTimeout = window.clearTimeout = BackgroundTimer.clearTimeout;
|
|
|
|
|
global.clearInterval = window.clearInterval = BackgroundTimer.clearInterval;
|
2017-02-15 17:19:36 +00:00
|
|
|
global.setInterval = window.setInterval = BackgroundTimer.setInterval;
|
|
|
|
|
global.setTimeout = window.setTimeout = BackgroundTimer.setTimeout;
|
2017-02-14 13:59:49 +00:00
|
|
|
|
2016-10-05 14:36:59 +00:00
|
|
|
})(global || window || this); // eslint-disable-line no-invalid-this
|
