1914 lines
50 KiB
JavaScript
1914 lines
50 KiB
JavaScript
(function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){
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"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.clearNodeFolder = clearNodeFolder;
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exports.enforceOptions = enforceOptions;
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exports.BroadcastChannel = void 0;
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var _util = require("./util.js");
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var _methodChooser = require("./method-chooser.js");
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var _options = require("./options.js");
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var BroadcastChannel = function BroadcastChannel(name, options) {
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this.name = name;
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if (ENFORCED_OPTIONS) {
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options = ENFORCED_OPTIONS;
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}
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this.options = (0, _options.fillOptionsWithDefaults)(options);
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this.method = (0, _methodChooser.chooseMethod)(this.options); // isListening
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this._iL = false;
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/**
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* _onMessageListener
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* setting onmessage twice,
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* will overwrite the first listener
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*/
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this._onML = null;
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/**
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* _addEventListeners
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*/
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this._addEL = {
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message: [],
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internal: []
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};
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/**
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* Unsend message promises
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* where the sending is still in progress
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* @type {Set<Promise>}
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*/
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this._uMP = new Set();
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/**
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* _beforeClose
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* array of promises that will be awaited
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* before the channel is closed
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*/
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this._befC = [];
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/**
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* _preparePromise
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*/
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this._prepP = null;
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_prepareChannel(this);
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}; // STATICS
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/**
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* used to identify if someone overwrites
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* window.BroadcastChannel with this
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* See methods/native.js
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*/
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exports.BroadcastChannel = BroadcastChannel;
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BroadcastChannel._pubkey = true;
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/**
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* clears the tmp-folder if is node
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* @return {Promise<boolean>} true if has run, false if not node
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*/
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function clearNodeFolder(options) {
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options = (0, _options.fillOptionsWithDefaults)(options);
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var method = (0, _methodChooser.chooseMethod)(options);
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if (method.type === 'node') {
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return method.clearNodeFolder().then(function () {
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return true;
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});
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} else {
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return Promise.resolve(false);
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}
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}
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/**
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* if set, this method is enforced,
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* no mather what the options are
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*/
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var ENFORCED_OPTIONS;
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function enforceOptions(options) {
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ENFORCED_OPTIONS = options;
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} // PROTOTYPE
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BroadcastChannel.prototype = {
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postMessage: function postMessage(msg) {
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if (this.closed) {
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throw new Error('BroadcastChannel.postMessage(): ' + 'Cannot post message after channel has closed');
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}
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return _post(this, 'message', msg);
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},
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postInternal: function postInternal(msg) {
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return _post(this, 'internal', msg);
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},
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set onmessage(fn) {
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var time = this.method.microSeconds();
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var listenObj = {
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time: time,
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fn: fn
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};
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_removeListenerObject(this, 'message', this._onML);
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if (fn && typeof fn === 'function') {
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this._onML = listenObj;
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_addListenerObject(this, 'message', listenObj);
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} else {
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this._onML = null;
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}
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},
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addEventListener: function addEventListener(type, fn) {
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var time = this.method.microSeconds();
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var listenObj = {
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time: time,
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fn: fn
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};
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_addListenerObject(this, type, listenObj);
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},
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removeEventListener: function removeEventListener(type, fn) {
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var obj = this._addEL[type].find(function (obj) {
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return obj.fn === fn;
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});
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_removeListenerObject(this, type, obj);
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},
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close: function close() {
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var _this = this;
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if (this.closed) {
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return;
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}
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this.closed = true;
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var awaitPrepare = this._prepP ? this._prepP : Promise.resolve();
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this._onML = null;
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this._addEL.message = [];
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return awaitPrepare // wait until all current sending are processed
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.then(function () {
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return Promise.all(Array.from(_this._uMP));
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}) // run before-close hooks
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.then(function () {
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return Promise.all(_this._befC.map(function (fn) {
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return fn();
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}));
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}) // close the channel
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.then(function () {
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return _this.method.close(_this._state);
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});
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},
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get type() {
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return this.method.type;
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},
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get isClosed() {
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return this.closed;
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}
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};
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/**
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* Post a message over the channel
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* @returns {Promise} that resolved when the message sending is done
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*/
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function _post(broadcastChannel, type, msg) {
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var time = broadcastChannel.method.microSeconds();
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var msgObj = {
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time: time,
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type: type,
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data: msg
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};
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var awaitPrepare = broadcastChannel._prepP ? broadcastChannel._prepP : Promise.resolve();
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return awaitPrepare.then(function () {
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var sendPromise = broadcastChannel.method.postMessage(broadcastChannel._state, msgObj); // add/remove to unsend messages list
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broadcastChannel._uMP.add(sendPromise);
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sendPromise["catch"]().then(function () {
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return broadcastChannel._uMP["delete"](sendPromise);
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});
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return sendPromise;
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});
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}
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function _prepareChannel(channel) {
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var maybePromise = channel.method.create(channel.name, channel.options);
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if ((0, _util.isPromise)(maybePromise)) {
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channel._prepP = maybePromise;
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maybePromise.then(function (s) {
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// used in tests to simulate slow runtime
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/*if (channel.options.prepareDelay) {
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await new Promise(res => setTimeout(res, this.options.prepareDelay));
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}*/
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channel._state = s;
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});
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} else {
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channel._state = maybePromise;
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}
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}
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function _hasMessageListeners(channel) {
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if (channel._addEL.message.length > 0) return true;
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if (channel._addEL.internal.length > 0) return true;
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return false;
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}
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function _addListenerObject(channel, type, obj) {
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channel._addEL[type].push(obj);
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_startListening(channel);
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}
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function _removeListenerObject(channel, type, obj) {
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channel._addEL[type] = channel._addEL[type].filter(function (o) {
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return o !== obj;
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});
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_stopListening(channel);
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}
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function _startListening(channel) {
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if (!channel._iL && _hasMessageListeners(channel)) {
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// someone is listening, start subscribing
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var listenerFn = function listenerFn(msgObj) {
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channel._addEL[msgObj.type].forEach(function (obj) {
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if (msgObj.time >= obj.time) {
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obj.fn(msgObj.data);
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}
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});
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};
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var time = channel.method.microSeconds();
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if (channel._prepP) {
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channel._prepP.then(function () {
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channel._iL = true;
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channel.method.onMessage(channel._state, listenerFn, time);
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});
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} else {
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channel._iL = true;
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channel.method.onMessage(channel._state, listenerFn, time);
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}
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}
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}
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function _stopListening(channel) {
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if (channel._iL && !_hasMessageListeners(channel)) {
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// noone is listening, stop subscribing
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channel._iL = false;
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var time = channel.method.microSeconds();
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channel.method.onMessage(channel._state, null, time);
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}
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}
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},{"./method-chooser.js":6,"./options.js":11,"./util.js":12}],2:[function(require,module,exports){
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"use strict";
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var _module = require('./index.es5.js');
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var BroadcastChannel = _module.BroadcastChannel;
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var createLeaderElection = _module.createLeaderElection;
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window['BroadcastChannel2'] = BroadcastChannel;
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window['createLeaderElection'] = createLeaderElection;
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},{"./index.es5.js":3}],3:[function(require,module,exports){
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"use strict";
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var _index = require("./index.js");
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/**
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* because babel can only export on default-attribute,
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* we use this for the non-module-build
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* this ensures that users do not have to use
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* var BroadcastChannel = require('broadcast-channel').default;
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* but
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* var BroadcastChannel = require('broadcast-channel');
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*/
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module.exports = {
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BroadcastChannel: _index.BroadcastChannel,
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createLeaderElection: _index.createLeaderElection,
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clearNodeFolder: _index.clearNodeFolder,
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enforceOptions: _index.enforceOptions,
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beLeader: _index.beLeader
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};
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},{"./index.js":4}],4:[function(require,module,exports){
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"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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Object.defineProperty(exports, "BroadcastChannel", {
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enumerable: true,
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get: function get() {
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return _broadcastChannel.BroadcastChannel;
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}
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});
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Object.defineProperty(exports, "clearNodeFolder", {
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enumerable: true,
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get: function get() {
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return _broadcastChannel.clearNodeFolder;
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}
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});
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Object.defineProperty(exports, "enforceOptions", {
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enumerable: true,
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get: function get() {
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return _broadcastChannel.enforceOptions;
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}
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});
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Object.defineProperty(exports, "createLeaderElection", {
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enumerable: true,
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get: function get() {
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return _leaderElection.createLeaderElection;
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}
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});
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Object.defineProperty(exports, "beLeader", {
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enumerable: true,
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get: function get() {
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return _leaderElection.beLeader;
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}
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});
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var _broadcastChannel = require("./broadcast-channel");
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var _leaderElection = require("./leader-election");
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},{"./broadcast-channel":1,"./leader-election":5}],5:[function(require,module,exports){
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"use strict";
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var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.beLeader = beLeader;
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exports.createLeaderElection = createLeaderElection;
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var _util = require("./util.js");
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var _unload = _interopRequireDefault(require("unload"));
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var LeaderElection = function LeaderElection(channel, options) {
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this._channel = channel;
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this._options = options;
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this.isLeader = false;
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this.isDead = false;
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this.token = (0, _util.randomToken)();
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this._isApl = false; // _isApplying
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this._reApply = false; // things to clean up
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this._unl = []; // _unloads
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this._lstns = []; // _listeners
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this._invs = []; // _intervals
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this._dpL = function () {}; // onduplicate listener
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this._dpLC = false; // true when onduplicate called
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};
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LeaderElection.prototype = {
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applyOnce: function applyOnce() {
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var _this = this;
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if (this.isLeader) return Promise.resolve(false);
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if (this.isDead) return Promise.resolve(false); // do nothing if already running
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if (this._isApl) {
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this._reApply = true;
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return Promise.resolve(false);
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}
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this._isApl = true;
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var stopCriteria = false;
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var recieved = [];
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var handleMessage = function handleMessage(msg) {
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if (msg.context === 'leader' && msg.token != _this.token) {
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recieved.push(msg);
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if (msg.action === 'apply') {
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// other is applying
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if (msg.token > _this.token) {
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// other has higher token, stop applying
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stopCriteria = true;
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}
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}
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if (msg.action === 'tell') {
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// other is already leader
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stopCriteria = true;
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}
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}
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};
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this._channel.addEventListener('internal', handleMessage);
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var ret = _sendMessage(this, 'apply') // send out that this one is applying
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.then(function () {
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return (0, _util.sleep)(_this._options.responseTime);
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}) // let others time to respond
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.then(function () {
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if (stopCriteria) return Promise.reject(new Error());else return _sendMessage(_this, 'apply');
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}).then(function () {
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return (0, _util.sleep)(_this._options.responseTime);
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}) // let others time to respond
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.then(function () {
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if (stopCriteria) return Promise.reject(new Error());else return _sendMessage(_this);
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}).then(function () {
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return beLeader(_this);
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}) // no one disagreed -> this one is now leader
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.then(function () {
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return true;
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})["catch"](function () {
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return false;
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}) // apply not successfull
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.then(function (success) {
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_this._channel.removeEventListener('internal', handleMessage);
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_this._isApl = false;
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if (!success && _this._reApply) {
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_this._reApply = false;
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return _this.applyOnce();
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} else return success;
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});
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return ret;
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},
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awaitLeadership: function awaitLeadership() {
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if (
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/* _awaitLeadershipPromise */
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!this._aLP) {
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this._aLP = _awaitLeadershipOnce(this);
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}
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return this._aLP;
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},
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set onduplicate(fn) {
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this._dpL = fn;
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},
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die: function die() {
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var _this2 = this;
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if (this.isDead) return;
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this.isDead = true;
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this._lstns.forEach(function (listener) {
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return _this2._channel.removeEventListener('internal', listener);
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});
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this._invs.forEach(function (interval) {
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return clearInterval(interval);
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});
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this._unl.forEach(function (uFn) {
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uFn.remove();
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});
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return _sendMessage(this, 'death');
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}
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};
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function _awaitLeadershipOnce(leaderElector) {
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if (leaderElector.isLeader) return Promise.resolve();
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return new Promise(function (res) {
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var resolved = false;
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function finish() {
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if (resolved) {
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return;
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}
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resolved = true;
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clearInterval(interval);
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leaderElector._channel.removeEventListener('internal', whenDeathListener);
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res(true);
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} // try once now
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leaderElector.applyOnce().then(function () {
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if (leaderElector.isLeader) {
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finish();
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}
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}); // try on fallbackInterval
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var interval = setInterval(function () {
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leaderElector.applyOnce().then(function () {
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if (leaderElector.isLeader) {
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finish();
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}
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});
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}, leaderElector._options.fallbackInterval);
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leaderElector._invs.push(interval); // try when other leader dies
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var whenDeathListener = function whenDeathListener(msg) {
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if (msg.context === 'leader' && msg.action === 'death') {
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leaderElector.applyOnce().then(function () {
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if (leaderElector.isLeader) finish();
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});
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}
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};
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leaderElector._channel.addEventListener('internal', whenDeathListener);
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leaderElector._lstns.push(whenDeathListener);
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});
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}
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/**
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* sends and internal message over the broadcast-channel
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*/
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function _sendMessage(leaderElector, action) {
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var msgJson = {
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context: 'leader',
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action: action,
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token: leaderElector.token
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};
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return leaderElector._channel.postInternal(msgJson);
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}
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function beLeader(leaderElector) {
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leaderElector.isLeader = true;
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var unloadFn = _unload["default"].add(function () {
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return leaderElector.die();
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});
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leaderElector._unl.push(unloadFn);
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var isLeaderListener = function isLeaderListener(msg) {
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if (msg.context === 'leader' && msg.action === 'apply') {
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_sendMessage(leaderElector, 'tell');
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}
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if (msg.context === 'leader' && msg.action === 'tell' && !leaderElector._dpLC) {
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/**
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* another instance is also leader!
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* This can happen on rare events
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* like when the CPU is at 100% for long time
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* or the tabs are open very long and the browser throttles them.
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* @link https://github.com/pubkey/broadcast-channel/issues/414
|
|
* @link https://github.com/pubkey/broadcast-channel/issues/385
|
|
*/
|
|
leaderElector._dpLC = true;
|
|
|
|
leaderElector._dpL(); // message the lib user so the app can handle the problem
|
|
|
|
|
|
_sendMessage(leaderElector, 'tell'); // ensure other leader also knows the problem
|
|
|
|
}
|
|
};
|
|
|
|
leaderElector._channel.addEventListener('internal', isLeaderListener);
|
|
|
|
leaderElector._lstns.push(isLeaderListener);
|
|
|
|
return _sendMessage(leaderElector, 'tell');
|
|
}
|
|
|
|
function fillOptionsWithDefaults(options, channel) {
|
|
if (!options) options = {};
|
|
options = JSON.parse(JSON.stringify(options));
|
|
|
|
if (!options.fallbackInterval) {
|
|
options.fallbackInterval = 3000;
|
|
}
|
|
|
|
if (!options.responseTime) {
|
|
options.responseTime = channel.method.averageResponseTime(channel.options);
|
|
}
|
|
|
|
return options;
|
|
}
|
|
|
|
function createLeaderElection(channel, options) {
|
|
if (channel._leaderElector) {
|
|
throw new Error('BroadcastChannel already has a leader-elector');
|
|
}
|
|
|
|
options = fillOptionsWithDefaults(options, channel);
|
|
var elector = new LeaderElection(channel, options);
|
|
|
|
channel._befC.push(function () {
|
|
return elector.die();
|
|
});
|
|
|
|
channel._leaderElector = elector;
|
|
return elector;
|
|
}
|
|
},{"./util.js":12,"@babel/runtime/helpers/interopRequireDefault":13,"unload":19}],6:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports.chooseMethod = chooseMethod;
|
|
|
|
var _native = _interopRequireDefault(require("./methods/native.js"));
|
|
|
|
var _indexedDb = _interopRequireDefault(require("./methods/indexed-db.js"));
|
|
|
|
var _localstorage = _interopRequireDefault(require("./methods/localstorage.js"));
|
|
|
|
var _simulate = _interopRequireDefault(require("./methods/simulate.js"));
|
|
|
|
var _util = require("./util");
|
|
|
|
// order is important
|
|
var METHODS = [_native["default"], // fastest
|
|
_indexedDb["default"], _localstorage["default"]];
|
|
/**
|
|
* The NodeMethod is loaded lazy
|
|
* so it will not get bundled in browser-builds
|
|
*/
|
|
|
|
if (_util.isNode) {
|
|
/**
|
|
* we use the non-transpiled code for nodejs
|
|
* because it runs faster
|
|
*/
|
|
var NodeMethod = require('../../src/methods/' + // use this hack so that browserify and others
|
|
// do not import the node-method by default
|
|
// when bundling.
|
|
'node.js');
|
|
/**
|
|
* this will be false for webpackbuilds
|
|
* which will shim the node-method with an empty object {}
|
|
*/
|
|
|
|
|
|
if (typeof NodeMethod.canBeUsed === 'function') {
|
|
METHODS.push(NodeMethod);
|
|
}
|
|
}
|
|
|
|
function chooseMethod(options) {
|
|
var chooseMethods = [].concat(options.methods, METHODS).filter(Boolean); // directly chosen
|
|
|
|
if (options.type) {
|
|
if (options.type === 'simulate') {
|
|
// only use simulate-method if directly chosen
|
|
return _simulate["default"];
|
|
}
|
|
|
|
var ret = chooseMethods.find(function (m) {
|
|
return m.type === options.type;
|
|
});
|
|
if (!ret) throw new Error('method-type ' + options.type + ' not found');else return ret;
|
|
}
|
|
/**
|
|
* if no webworker support is needed,
|
|
* remove idb from the list so that localstorage is been chosen
|
|
*/
|
|
|
|
|
|
if (!options.webWorkerSupport && !_util.isNode) {
|
|
chooseMethods = chooseMethods.filter(function (m) {
|
|
return m.type !== 'idb';
|
|
});
|
|
}
|
|
|
|
var useMethod = chooseMethods.find(function (method) {
|
|
return method.canBeUsed();
|
|
});
|
|
if (!useMethod) throw new Error('No useable methode found:' + JSON.stringify(METHODS.map(function (m) {
|
|
return m.type;
|
|
})));else return useMethod;
|
|
}
|
|
},{"./methods/indexed-db.js":7,"./methods/localstorage.js":8,"./methods/native.js":9,"./methods/simulate.js":10,"./util":12,"@babel/runtime/helpers/interopRequireDefault":13}],7:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports.getIdb = getIdb;
|
|
exports.createDatabase = createDatabase;
|
|
exports.writeMessage = writeMessage;
|
|
exports.getAllMessages = getAllMessages;
|
|
exports.getMessagesHigherThan = getMessagesHigherThan;
|
|
exports.removeMessageById = removeMessageById;
|
|
exports.getOldMessages = getOldMessages;
|
|
exports.cleanOldMessages = cleanOldMessages;
|
|
exports.create = create;
|
|
exports.close = close;
|
|
exports.postMessage = postMessage;
|
|
exports.onMessage = onMessage;
|
|
exports.canBeUsed = canBeUsed;
|
|
exports.averageResponseTime = averageResponseTime;
|
|
exports["default"] = exports.type = exports.microSeconds = void 0;
|
|
|
|
var _util = require("../util.js");
|
|
|
|
var _obliviousSet = require("oblivious-set");
|
|
|
|
var _options = require("../options");
|
|
|
|
/**
|
|
* this method uses indexeddb to store the messages
|
|
* There is currently no observerAPI for idb
|
|
* @link https://github.com/w3c/IndexedDB/issues/51
|
|
*/
|
|
var microSeconds = _util.microSeconds;
|
|
exports.microSeconds = microSeconds;
|
|
var DB_PREFIX = 'pubkey.broadcast-channel-0-';
|
|
var OBJECT_STORE_ID = 'messages';
|
|
var type = 'idb';
|
|
exports.type = type;
|
|
|
|
function getIdb() {
|
|
if (typeof indexedDB !== 'undefined') return indexedDB;
|
|
|
|
if (typeof window !== 'undefined') {
|
|
if (typeof window.mozIndexedDB !== 'undefined') return window.mozIndexedDB;
|
|
if (typeof window.webkitIndexedDB !== 'undefined') return window.webkitIndexedDB;
|
|
if (typeof window.msIndexedDB !== 'undefined') return window.msIndexedDB;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
function createDatabase(channelName) {
|
|
var IndexedDB = getIdb(); // create table
|
|
|
|
var dbName = DB_PREFIX + channelName;
|
|
var openRequest = IndexedDB.open(dbName, 1);
|
|
|
|
openRequest.onupgradeneeded = function (ev) {
|
|
var db = ev.target.result;
|
|
db.createObjectStore(OBJECT_STORE_ID, {
|
|
keyPath: 'id',
|
|
autoIncrement: true
|
|
});
|
|
};
|
|
|
|
var dbPromise = new Promise(function (res, rej) {
|
|
openRequest.onerror = function (ev) {
|
|
return rej(ev);
|
|
};
|
|
|
|
openRequest.onsuccess = function () {
|
|
res(openRequest.result);
|
|
};
|
|
});
|
|
return dbPromise;
|
|
}
|
|
/**
|
|
* writes the new message to the database
|
|
* so other readers can find it
|
|
*/
|
|
|
|
|
|
function writeMessage(db, readerUuid, messageJson) {
|
|
var time = new Date().getTime();
|
|
var writeObject = {
|
|
uuid: readerUuid,
|
|
time: time,
|
|
data: messageJson
|
|
};
|
|
var transaction = db.transaction([OBJECT_STORE_ID], 'readwrite');
|
|
return new Promise(function (res, rej) {
|
|
transaction.oncomplete = function () {
|
|
return res();
|
|
};
|
|
|
|
transaction.onerror = function (ev) {
|
|
return rej(ev);
|
|
};
|
|
|
|
var objectStore = transaction.objectStore(OBJECT_STORE_ID);
|
|
objectStore.add(writeObject);
|
|
});
|
|
}
|
|
|
|
function getAllMessages(db) {
|
|
var objectStore = db.transaction(OBJECT_STORE_ID).objectStore(OBJECT_STORE_ID);
|
|
var ret = [];
|
|
return new Promise(function (res) {
|
|
objectStore.openCursor().onsuccess = function (ev) {
|
|
var cursor = ev.target.result;
|
|
|
|
if (cursor) {
|
|
ret.push(cursor.value); //alert("Name for SSN " + cursor.key + " is " + cursor.value.name);
|
|
|
|
cursor["continue"]();
|
|
} else {
|
|
res(ret);
|
|
}
|
|
};
|
|
});
|
|
}
|
|
|
|
function getMessagesHigherThan(db, lastCursorId) {
|
|
var objectStore = db.transaction(OBJECT_STORE_ID).objectStore(OBJECT_STORE_ID);
|
|
var ret = [];
|
|
|
|
function openCursor() {
|
|
// Occasionally Safari will fail on IDBKeyRange.bound, this
|
|
// catches that error, having it open the cursor to the first
|
|
// item. When it gets data it will advance to the desired key.
|
|
try {
|
|
var keyRangeValue = IDBKeyRange.bound(lastCursorId + 1, Infinity);
|
|
return objectStore.openCursor(keyRangeValue);
|
|
} catch (e) {
|
|
return objectStore.openCursor();
|
|
}
|
|
}
|
|
|
|
return new Promise(function (res) {
|
|
openCursor().onsuccess = function (ev) {
|
|
var cursor = ev.target.result;
|
|
|
|
if (cursor) {
|
|
if (cursor.value.id < lastCursorId + 1) {
|
|
cursor["continue"](lastCursorId + 1);
|
|
} else {
|
|
ret.push(cursor.value);
|
|
cursor["continue"]();
|
|
}
|
|
} else {
|
|
res(ret);
|
|
}
|
|
};
|
|
});
|
|
}
|
|
|
|
function removeMessageById(db, id) {
|
|
var request = db.transaction([OBJECT_STORE_ID], 'readwrite').objectStore(OBJECT_STORE_ID)["delete"](id);
|
|
return new Promise(function (res) {
|
|
request.onsuccess = function () {
|
|
return res();
|
|
};
|
|
});
|
|
}
|
|
|
|
function getOldMessages(db, ttl) {
|
|
var olderThen = new Date().getTime() - ttl;
|
|
var objectStore = db.transaction(OBJECT_STORE_ID).objectStore(OBJECT_STORE_ID);
|
|
var ret = [];
|
|
return new Promise(function (res) {
|
|
objectStore.openCursor().onsuccess = function (ev) {
|
|
var cursor = ev.target.result;
|
|
|
|
if (cursor) {
|
|
var msgObk = cursor.value;
|
|
|
|
if (msgObk.time < olderThen) {
|
|
ret.push(msgObk); //alert("Name for SSN " + cursor.key + " is " + cursor.value.name);
|
|
|
|
cursor["continue"]();
|
|
} else {
|
|
// no more old messages,
|
|
res(ret);
|
|
return;
|
|
}
|
|
} else {
|
|
res(ret);
|
|
}
|
|
};
|
|
});
|
|
}
|
|
|
|
function cleanOldMessages(db, ttl) {
|
|
return getOldMessages(db, ttl).then(function (tooOld) {
|
|
return Promise.all(tooOld.map(function (msgObj) {
|
|
return removeMessageById(db, msgObj.id);
|
|
}));
|
|
});
|
|
}
|
|
|
|
function create(channelName, options) {
|
|
options = (0, _options.fillOptionsWithDefaults)(options);
|
|
return createDatabase(channelName).then(function (db) {
|
|
var state = {
|
|
closed: false,
|
|
lastCursorId: 0,
|
|
channelName: channelName,
|
|
options: options,
|
|
uuid: (0, _util.randomToken)(),
|
|
|
|
/**
|
|
* emittedMessagesIds
|
|
* contains all messages that have been emitted before
|
|
* @type {ObliviousSet}
|
|
*/
|
|
eMIs: new _obliviousSet.ObliviousSet(options.idb.ttl * 2),
|
|
// ensures we do not read messages in parrallel
|
|
writeBlockPromise: Promise.resolve(),
|
|
messagesCallback: null,
|
|
readQueuePromises: [],
|
|
db: db
|
|
};
|
|
/**
|
|
* Handle abrupt closes that do not originate from db.close().
|
|
* This could happen, for example, if the underlying storage is
|
|
* removed or if the user clears the database in the browser's
|
|
* history preferences.
|
|
*/
|
|
|
|
db.onclose = function () {
|
|
state.closed = true;
|
|
if (options.idb.onclose) options.idb.onclose();
|
|
};
|
|
/**
|
|
* if service-workers are used,
|
|
* we have no 'storage'-event if they post a message,
|
|
* therefore we also have to set an interval
|
|
*/
|
|
|
|
|
|
_readLoop(state);
|
|
|
|
return state;
|
|
});
|
|
}
|
|
|
|
function _readLoop(state) {
|
|
if (state.closed) return;
|
|
readNewMessages(state).then(function () {
|
|
return (0, _util.sleep)(state.options.idb.fallbackInterval);
|
|
}).then(function () {
|
|
return _readLoop(state);
|
|
});
|
|
}
|
|
|
|
function _filterMessage(msgObj, state) {
|
|
if (msgObj.uuid === state.uuid) return false; // send by own
|
|
|
|
if (state.eMIs.has(msgObj.id)) return false; // already emitted
|
|
|
|
if (msgObj.data.time < state.messagesCallbackTime) return false; // older then onMessageCallback
|
|
|
|
return true;
|
|
}
|
|
/**
|
|
* reads all new messages from the database and emits them
|
|
*/
|
|
|
|
|
|
function readNewMessages(state) {
|
|
// channel already closed
|
|
if (state.closed) return Promise.resolve(); // if no one is listening, we do not need to scan for new messages
|
|
|
|
if (!state.messagesCallback) return Promise.resolve();
|
|
return getMessagesHigherThan(state.db, state.lastCursorId).then(function (newerMessages) {
|
|
var useMessages = newerMessages
|
|
/**
|
|
* there is a bug in iOS where the msgObj can be undefined some times
|
|
* so we filter them out
|
|
* @link https://github.com/pubkey/broadcast-channel/issues/19
|
|
*/
|
|
.filter(function (msgObj) {
|
|
return !!msgObj;
|
|
}).map(function (msgObj) {
|
|
if (msgObj.id > state.lastCursorId) {
|
|
state.lastCursorId = msgObj.id;
|
|
}
|
|
|
|
return msgObj;
|
|
}).filter(function (msgObj) {
|
|
return _filterMessage(msgObj, state);
|
|
}).sort(function (msgObjA, msgObjB) {
|
|
return msgObjA.time - msgObjB.time;
|
|
}); // sort by time
|
|
|
|
useMessages.forEach(function (msgObj) {
|
|
if (state.messagesCallback) {
|
|
state.eMIs.add(msgObj.id);
|
|
state.messagesCallback(msgObj.data);
|
|
}
|
|
});
|
|
return Promise.resolve();
|
|
});
|
|
}
|
|
|
|
function close(channelState) {
|
|
channelState.closed = true;
|
|
channelState.db.close();
|
|
}
|
|
|
|
function postMessage(channelState, messageJson) {
|
|
channelState.writeBlockPromise = channelState.writeBlockPromise.then(function () {
|
|
return writeMessage(channelState.db, channelState.uuid, messageJson);
|
|
}).then(function () {
|
|
if ((0, _util.randomInt)(0, 10) === 0) {
|
|
/* await (do not await) */
|
|
cleanOldMessages(channelState.db, channelState.options.idb.ttl);
|
|
}
|
|
});
|
|
return channelState.writeBlockPromise;
|
|
}
|
|
|
|
function onMessage(channelState, fn, time) {
|
|
channelState.messagesCallbackTime = time;
|
|
channelState.messagesCallback = fn;
|
|
readNewMessages(channelState);
|
|
}
|
|
|
|
function canBeUsed() {
|
|
if (_util.isNode) return false;
|
|
var idb = getIdb();
|
|
if (!idb) return false;
|
|
return true;
|
|
}
|
|
|
|
function averageResponseTime(options) {
|
|
return options.idb.fallbackInterval * 2;
|
|
}
|
|
|
|
var _default = {
|
|
create: create,
|
|
close: close,
|
|
onMessage: onMessage,
|
|
postMessage: postMessage,
|
|
canBeUsed: canBeUsed,
|
|
type: type,
|
|
averageResponseTime: averageResponseTime,
|
|
microSeconds: microSeconds
|
|
};
|
|
exports["default"] = _default;
|
|
},{"../options":11,"../util.js":12,"oblivious-set":16}],8:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports.getLocalStorage = getLocalStorage;
|
|
exports.storageKey = storageKey;
|
|
exports.postMessage = postMessage;
|
|
exports.addStorageEventListener = addStorageEventListener;
|
|
exports.removeStorageEventListener = removeStorageEventListener;
|
|
exports.create = create;
|
|
exports.close = close;
|
|
exports.onMessage = onMessage;
|
|
exports.canBeUsed = canBeUsed;
|
|
exports.averageResponseTime = averageResponseTime;
|
|
exports["default"] = exports.type = exports.microSeconds = void 0;
|
|
|
|
var _obliviousSet = require("oblivious-set");
|
|
|
|
var _options = require("../options");
|
|
|
|
var _util = require("../util");
|
|
|
|
/**
|
|
* A localStorage-only method which uses localstorage and its 'storage'-event
|
|
* This does not work inside of webworkers because they have no access to locastorage
|
|
* This is basically implemented to support IE9 or your grandmothers toaster.
|
|
* @link https://caniuse.com/#feat=namevalue-storage
|
|
* @link https://caniuse.com/#feat=indexeddb
|
|
*/
|
|
var microSeconds = _util.microSeconds;
|
|
exports.microSeconds = microSeconds;
|
|
var KEY_PREFIX = 'pubkey.broadcastChannel-';
|
|
var type = 'localstorage';
|
|
/**
|
|
* copied from crosstab
|
|
* @link https://github.com/tejacques/crosstab/blob/master/src/crosstab.js#L32
|
|
*/
|
|
|
|
exports.type = type;
|
|
|
|
function getLocalStorage() {
|
|
var localStorage;
|
|
if (typeof window === 'undefined') return null;
|
|
|
|
try {
|
|
localStorage = window.localStorage;
|
|
localStorage = window['ie8-eventlistener/storage'] || window.localStorage;
|
|
} catch (e) {// New versions of Firefox throw a Security exception
|
|
// if cookies are disabled. See
|
|
// https://bugzilla.mozilla.org/show_bug.cgi?id=1028153
|
|
}
|
|
|
|
return localStorage;
|
|
}
|
|
|
|
function storageKey(channelName) {
|
|
return KEY_PREFIX + channelName;
|
|
}
|
|
/**
|
|
* writes the new message to the storage
|
|
* and fires the storage-event so other readers can find it
|
|
*/
|
|
|
|
|
|
function postMessage(channelState, messageJson) {
|
|
return new Promise(function (res) {
|
|
(0, _util.sleep)().then(function () {
|
|
var key = storageKey(channelState.channelName);
|
|
var writeObj = {
|
|
token: (0, _util.randomToken)(),
|
|
time: new Date().getTime(),
|
|
data: messageJson,
|
|
uuid: channelState.uuid
|
|
};
|
|
var value = JSON.stringify(writeObj);
|
|
getLocalStorage().setItem(key, value);
|
|
/**
|
|
* StorageEvent does not fire the 'storage' event
|
|
* in the window that changes the state of the local storage.
|
|
* So we fire it manually
|
|
*/
|
|
|
|
var ev = document.createEvent('Event');
|
|
ev.initEvent('storage', true, true);
|
|
ev.key = key;
|
|
ev.newValue = value;
|
|
window.dispatchEvent(ev);
|
|
res();
|
|
});
|
|
});
|
|
}
|
|
|
|
function addStorageEventListener(channelName, fn) {
|
|
var key = storageKey(channelName);
|
|
|
|
var listener = function listener(ev) {
|
|
if (ev.key === key) {
|
|
fn(JSON.parse(ev.newValue));
|
|
}
|
|
};
|
|
|
|
window.addEventListener('storage', listener);
|
|
return listener;
|
|
}
|
|
|
|
function removeStorageEventListener(listener) {
|
|
window.removeEventListener('storage', listener);
|
|
}
|
|
|
|
function create(channelName, options) {
|
|
options = (0, _options.fillOptionsWithDefaults)(options);
|
|
|
|
if (!canBeUsed()) {
|
|
throw new Error('BroadcastChannel: localstorage cannot be used');
|
|
}
|
|
|
|
var uuid = (0, _util.randomToken)();
|
|
/**
|
|
* eMIs
|
|
* contains all messages that have been emitted before
|
|
* @type {ObliviousSet}
|
|
*/
|
|
|
|
var eMIs = new _obliviousSet.ObliviousSet(options.localstorage.removeTimeout);
|
|
var state = {
|
|
channelName: channelName,
|
|
uuid: uuid,
|
|
eMIs: eMIs // emittedMessagesIds
|
|
|
|
};
|
|
state.listener = addStorageEventListener(channelName, function (msgObj) {
|
|
if (!state.messagesCallback) return; // no listener
|
|
|
|
if (msgObj.uuid === uuid) return; // own message
|
|
|
|
if (!msgObj.token || eMIs.has(msgObj.token)) return; // already emitted
|
|
|
|
if (msgObj.data.time && msgObj.data.time < state.messagesCallbackTime) return; // too old
|
|
|
|
eMIs.add(msgObj.token);
|
|
state.messagesCallback(msgObj.data);
|
|
});
|
|
return state;
|
|
}
|
|
|
|
function close(channelState) {
|
|
removeStorageEventListener(channelState.listener);
|
|
}
|
|
|
|
function onMessage(channelState, fn, time) {
|
|
channelState.messagesCallbackTime = time;
|
|
channelState.messagesCallback = fn;
|
|
}
|
|
|
|
function canBeUsed() {
|
|
if (_util.isNode) return false;
|
|
var ls = getLocalStorage();
|
|
if (!ls) return false;
|
|
|
|
try {
|
|
var key = '__broadcastchannel_check';
|
|
ls.setItem(key, 'works');
|
|
ls.removeItem(key);
|
|
} catch (e) {
|
|
// Safari 10 in private mode will not allow write access to local
|
|
// storage and fail with a QuotaExceededError. See
|
|
// https://developer.mozilla.org/en-US/docs/Web/API/Web_Storage_API#Private_Browsing_Incognito_modes
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
function averageResponseTime() {
|
|
var defaultTime = 120;
|
|
var userAgent = navigator.userAgent.toLowerCase();
|
|
|
|
if (userAgent.includes('safari') && !userAgent.includes('chrome')) {
|
|
// safari is much slower so this time is higher
|
|
return defaultTime * 2;
|
|
}
|
|
|
|
return defaultTime;
|
|
}
|
|
|
|
var _default = {
|
|
create: create,
|
|
close: close,
|
|
onMessage: onMessage,
|
|
postMessage: postMessage,
|
|
canBeUsed: canBeUsed,
|
|
type: type,
|
|
averageResponseTime: averageResponseTime,
|
|
microSeconds: microSeconds
|
|
};
|
|
exports["default"] = _default;
|
|
},{"../options":11,"../util":12,"oblivious-set":16}],9:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports.create = create;
|
|
exports.close = close;
|
|
exports.postMessage = postMessage;
|
|
exports.onMessage = onMessage;
|
|
exports.canBeUsed = canBeUsed;
|
|
exports.averageResponseTime = averageResponseTime;
|
|
exports["default"] = exports.type = exports.microSeconds = void 0;
|
|
|
|
var _util = require("../util");
|
|
|
|
var microSeconds = _util.microSeconds;
|
|
exports.microSeconds = microSeconds;
|
|
var type = 'native';
|
|
exports.type = type;
|
|
|
|
function create(channelName) {
|
|
var state = {
|
|
messagesCallback: null,
|
|
bc: new BroadcastChannel(channelName),
|
|
subFns: [] // subscriberFunctions
|
|
|
|
};
|
|
|
|
state.bc.onmessage = function (msg) {
|
|
if (state.messagesCallback) {
|
|
state.messagesCallback(msg.data);
|
|
}
|
|
};
|
|
|
|
return state;
|
|
}
|
|
|
|
function close(channelState) {
|
|
channelState.bc.close();
|
|
channelState.subFns = [];
|
|
}
|
|
|
|
function postMessage(channelState, messageJson) {
|
|
try {
|
|
channelState.bc.postMessage(messageJson, false);
|
|
return Promise.resolve();
|
|
} catch (err) {
|
|
return Promise.reject(err);
|
|
}
|
|
}
|
|
|
|
function onMessage(channelState, fn) {
|
|
channelState.messagesCallback = fn;
|
|
}
|
|
|
|
function canBeUsed() {
|
|
/**
|
|
* in the electron-renderer, isNode will be true even if we are in browser-context
|
|
* so we also check if window is undefined
|
|
*/
|
|
if (_util.isNode && typeof window === 'undefined') return false;
|
|
|
|
if (typeof BroadcastChannel === 'function') {
|
|
if (BroadcastChannel._pubkey) {
|
|
throw new Error('BroadcastChannel: Do not overwrite window.BroadcastChannel with this module, this is not a polyfill');
|
|
}
|
|
|
|
return true;
|
|
} else return false;
|
|
}
|
|
|
|
function averageResponseTime() {
|
|
return 150;
|
|
}
|
|
|
|
var _default = {
|
|
create: create,
|
|
close: close,
|
|
onMessage: onMessage,
|
|
postMessage: postMessage,
|
|
canBeUsed: canBeUsed,
|
|
type: type,
|
|
averageResponseTime: averageResponseTime,
|
|
microSeconds: microSeconds
|
|
};
|
|
exports["default"] = _default;
|
|
},{"../util":12}],10:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports.create = create;
|
|
exports.close = close;
|
|
exports.postMessage = postMessage;
|
|
exports.onMessage = onMessage;
|
|
exports.canBeUsed = canBeUsed;
|
|
exports.averageResponseTime = averageResponseTime;
|
|
exports["default"] = exports.type = exports.microSeconds = void 0;
|
|
|
|
var _util = require("../util");
|
|
|
|
var microSeconds = _util.microSeconds;
|
|
exports.microSeconds = microSeconds;
|
|
var type = 'simulate';
|
|
exports.type = type;
|
|
var SIMULATE_CHANNELS = new Set();
|
|
|
|
function create(channelName) {
|
|
var state = {
|
|
name: channelName,
|
|
messagesCallback: null
|
|
};
|
|
SIMULATE_CHANNELS.add(state);
|
|
return state;
|
|
}
|
|
|
|
function close(channelState) {
|
|
SIMULATE_CHANNELS["delete"](channelState);
|
|
}
|
|
|
|
function postMessage(channelState, messageJson) {
|
|
return new Promise(function (res) {
|
|
return setTimeout(function () {
|
|
var channelArray = Array.from(SIMULATE_CHANNELS);
|
|
channelArray.filter(function (channel) {
|
|
return channel.name === channelState.name;
|
|
}).filter(function (channel) {
|
|
return channel !== channelState;
|
|
}).filter(function (channel) {
|
|
return !!channel.messagesCallback;
|
|
}).forEach(function (channel) {
|
|
return channel.messagesCallback(messageJson);
|
|
});
|
|
res();
|
|
}, 5);
|
|
});
|
|
}
|
|
|
|
function onMessage(channelState, fn) {
|
|
channelState.messagesCallback = fn;
|
|
}
|
|
|
|
function canBeUsed() {
|
|
return true;
|
|
}
|
|
|
|
function averageResponseTime() {
|
|
return 5;
|
|
}
|
|
|
|
var _default = {
|
|
create: create,
|
|
close: close,
|
|
onMessage: onMessage,
|
|
postMessage: postMessage,
|
|
canBeUsed: canBeUsed,
|
|
type: type,
|
|
averageResponseTime: averageResponseTime,
|
|
microSeconds: microSeconds
|
|
};
|
|
exports["default"] = _default;
|
|
},{"../util":12}],11:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports.fillOptionsWithDefaults = fillOptionsWithDefaults;
|
|
|
|
function fillOptionsWithDefaults() {
|
|
var originalOptions = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
|
|
var options = JSON.parse(JSON.stringify(originalOptions)); // main
|
|
|
|
if (typeof options.webWorkerSupport === 'undefined') options.webWorkerSupport = true; // indexed-db
|
|
|
|
if (!options.idb) options.idb = {}; // after this time the messages get deleted
|
|
|
|
if (!options.idb.ttl) options.idb.ttl = 1000 * 45;
|
|
if (!options.idb.fallbackInterval) options.idb.fallbackInterval = 150; // handles abrupt db onclose events.
|
|
|
|
if (originalOptions.idb && typeof originalOptions.idb.onclose === 'function') options.idb.onclose = originalOptions.idb.onclose; // localstorage
|
|
|
|
if (!options.localstorage) options.localstorage = {};
|
|
if (!options.localstorage.removeTimeout) options.localstorage.removeTimeout = 1000 * 60; // custom methods
|
|
|
|
if (originalOptions.methods) options.methods = originalOptions.methods; // node
|
|
|
|
if (!options.node) options.node = {};
|
|
if (!options.node.ttl) options.node.ttl = 1000 * 60 * 2; // 2 minutes;
|
|
|
|
if (typeof options.node.useFastPath === 'undefined') options.node.useFastPath = true;
|
|
return options;
|
|
}
|
|
},{}],12:[function(require,module,exports){
|
|
(function (process){(function (){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports.isPromise = isPromise;
|
|
exports.sleep = sleep;
|
|
exports.randomInt = randomInt;
|
|
exports.randomToken = randomToken;
|
|
exports.microSeconds = microSeconds;
|
|
exports.isNode = void 0;
|
|
|
|
/**
|
|
* returns true if the given object is a promise
|
|
*/
|
|
function isPromise(obj) {
|
|
if (obj && typeof obj.then === 'function') {
|
|
return true;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
function sleep(time) {
|
|
if (!time) time = 0;
|
|
return new Promise(function (res) {
|
|
return setTimeout(res, time);
|
|
});
|
|
}
|
|
|
|
function randomInt(min, max) {
|
|
return Math.floor(Math.random() * (max - min + 1) + min);
|
|
}
|
|
/**
|
|
* https://stackoverflow.com/a/8084248
|
|
*/
|
|
|
|
|
|
function randomToken() {
|
|
return Math.random().toString(36).substring(2);
|
|
}
|
|
|
|
var lastMs = 0;
|
|
var additional = 0;
|
|
/**
|
|
* returns the current time in micro-seconds,
|
|
* WARNING: This is a pseudo-function
|
|
* Performance.now is not reliable in webworkers, so we just make sure to never return the same time.
|
|
* This is enough in browsers, and this function will not be used in nodejs.
|
|
* The main reason for this hack is to ensure that BroadcastChannel behaves equal to production when it is used in fast-running unit tests.
|
|
*/
|
|
|
|
function microSeconds() {
|
|
var ms = new Date().getTime();
|
|
|
|
if (ms === lastMs) {
|
|
additional++;
|
|
return ms * 1000 + additional;
|
|
} else {
|
|
lastMs = ms;
|
|
additional = 0;
|
|
return ms * 1000;
|
|
}
|
|
}
|
|
/**
|
|
* copied from the 'detect-node' npm module
|
|
* We cannot use the module directly because it causes problems with rollup
|
|
* @link https://github.com/iliakan/detect-node/blob/master/index.js
|
|
*/
|
|
|
|
|
|
var isNode = Object.prototype.toString.call(typeof process !== 'undefined' ? process : 0) === '[object process]';
|
|
exports.isNode = isNode;
|
|
}).call(this)}).call(this,require('_process'))
|
|
},{"_process":17}],13:[function(require,module,exports){
|
|
function _interopRequireDefault(obj) {
|
|
return obj && obj.__esModule ? obj : {
|
|
"default": obj
|
|
};
|
|
}
|
|
|
|
module.exports = _interopRequireDefault;
|
|
module.exports["default"] = module.exports, module.exports.__esModule = true;
|
|
},{}],14:[function(require,module,exports){
|
|
|
|
},{}],15:[function(require,module,exports){
|
|
module.exports = false;
|
|
|
|
|
|
},{}],16:[function(require,module,exports){
|
|
"use strict";
|
|
Object.defineProperty(exports, "__esModule", { value: true });
|
|
exports.now = exports.removeTooOldValues = exports.ObliviousSet = void 0;
|
|
/**
|
|
* this is a set which automatically forgets
|
|
* a given entry when a new entry is set and the ttl
|
|
* of the old one is over
|
|
*/
|
|
var ObliviousSet = /** @class */ (function () {
|
|
function ObliviousSet(ttl) {
|
|
this.ttl = ttl;
|
|
this.set = new Set();
|
|
this.timeMap = new Map();
|
|
}
|
|
ObliviousSet.prototype.has = function (value) {
|
|
return this.set.has(value);
|
|
};
|
|
ObliviousSet.prototype.add = function (value) {
|
|
var _this = this;
|
|
this.timeMap.set(value, now());
|
|
this.set.add(value);
|
|
/**
|
|
* When a new value is added,
|
|
* start the cleanup at the next tick
|
|
* to not block the cpu for more important stuff
|
|
* that might happen.
|
|
*/
|
|
setTimeout(function () {
|
|
removeTooOldValues(_this);
|
|
}, 0);
|
|
};
|
|
ObliviousSet.prototype.clear = function () {
|
|
this.set.clear();
|
|
this.timeMap.clear();
|
|
};
|
|
return ObliviousSet;
|
|
}());
|
|
exports.ObliviousSet = ObliviousSet;
|
|
/**
|
|
* Removes all entries from the set
|
|
* where the TTL has expired
|
|
*/
|
|
function removeTooOldValues(obliviousSet) {
|
|
var olderThen = now() - obliviousSet.ttl;
|
|
var iterator = obliviousSet.set[Symbol.iterator]();
|
|
/**
|
|
* Because we can assume the new values are added at the bottom,
|
|
* we start from the top and stop as soon as we reach a non-too-old value.
|
|
*/
|
|
while (true) {
|
|
var value = iterator.next().value;
|
|
if (!value) {
|
|
return; // no more elements
|
|
}
|
|
var time = obliviousSet.timeMap.get(value);
|
|
if (time < olderThen) {
|
|
obliviousSet.timeMap.delete(value);
|
|
obliviousSet.set.delete(value);
|
|
}
|
|
else {
|
|
// We reached a value that is not old enough
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
exports.removeTooOldValues = removeTooOldValues;
|
|
function now() {
|
|
return new Date().getTime();
|
|
}
|
|
exports.now = now;
|
|
|
|
},{}],17:[function(require,module,exports){
|
|
// shim for using process in browser
|
|
var process = module.exports = {};
|
|
|
|
// cached from whatever global is present so that test runners that stub it
|
|
// don't break things. But we need to wrap it in a try catch in case it is
|
|
// wrapped in strict mode code which doesn't define any globals. It's inside a
|
|
// function because try/catches deoptimize in certain engines.
|
|
|
|
var cachedSetTimeout;
|
|
var cachedClearTimeout;
|
|
|
|
function defaultSetTimout() {
|
|
throw new Error('setTimeout has not been defined');
|
|
}
|
|
function defaultClearTimeout () {
|
|
throw new Error('clearTimeout has not been defined');
|
|
}
|
|
(function () {
|
|
try {
|
|
if (typeof setTimeout === 'function') {
|
|
cachedSetTimeout = setTimeout;
|
|
} else {
|
|
cachedSetTimeout = defaultSetTimout;
|
|
}
|
|
} catch (e) {
|
|
cachedSetTimeout = defaultSetTimout;
|
|
}
|
|
try {
|
|
if (typeof clearTimeout === 'function') {
|
|
cachedClearTimeout = clearTimeout;
|
|
} else {
|
|
cachedClearTimeout = defaultClearTimeout;
|
|
}
|
|
} catch (e) {
|
|
cachedClearTimeout = defaultClearTimeout;
|
|
}
|
|
} ())
|
|
function runTimeout(fun) {
|
|
if (cachedSetTimeout === setTimeout) {
|
|
//normal enviroments in sane situations
|
|
return setTimeout(fun, 0);
|
|
}
|
|
// if setTimeout wasn't available but was latter defined
|
|
if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {
|
|
cachedSetTimeout = setTimeout;
|
|
return setTimeout(fun, 0);
|
|
}
|
|
try {
|
|
// when when somebody has screwed with setTimeout but no I.E. maddness
|
|
return cachedSetTimeout(fun, 0);
|
|
} catch(e){
|
|
try {
|
|
// When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
|
|
return cachedSetTimeout.call(null, fun, 0);
|
|
} catch(e){
|
|
// same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error
|
|
return cachedSetTimeout.call(this, fun, 0);
|
|
}
|
|
}
|
|
|
|
|
|
}
|
|
function runClearTimeout(marker) {
|
|
if (cachedClearTimeout === clearTimeout) {
|
|
//normal enviroments in sane situations
|
|
return clearTimeout(marker);
|
|
}
|
|
// if clearTimeout wasn't available but was latter defined
|
|
if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {
|
|
cachedClearTimeout = clearTimeout;
|
|
return clearTimeout(marker);
|
|
}
|
|
try {
|
|
// when when somebody has screwed with setTimeout but no I.E. maddness
|
|
return cachedClearTimeout(marker);
|
|
} catch (e){
|
|
try {
|
|
// When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
|
|
return cachedClearTimeout.call(null, marker);
|
|
} catch (e){
|
|
// same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.
|
|
// Some versions of I.E. have different rules for clearTimeout vs setTimeout
|
|
return cachedClearTimeout.call(this, marker);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
}
|
|
var queue = [];
|
|
var draining = false;
|
|
var currentQueue;
|
|
var queueIndex = -1;
|
|
|
|
function cleanUpNextTick() {
|
|
if (!draining || !currentQueue) {
|
|
return;
|
|
}
|
|
draining = false;
|
|
if (currentQueue.length) {
|
|
queue = currentQueue.concat(queue);
|
|
} else {
|
|
queueIndex = -1;
|
|
}
|
|
if (queue.length) {
|
|
drainQueue();
|
|
}
|
|
}
|
|
|
|
function drainQueue() {
|
|
if (draining) {
|
|
return;
|
|
}
|
|
var timeout = runTimeout(cleanUpNextTick);
|
|
draining = true;
|
|
|
|
var len = queue.length;
|
|
while(len) {
|
|
currentQueue = queue;
|
|
queue = [];
|
|
while (++queueIndex < len) {
|
|
if (currentQueue) {
|
|
currentQueue[queueIndex].run();
|
|
}
|
|
}
|
|
queueIndex = -1;
|
|
len = queue.length;
|
|
}
|
|
currentQueue = null;
|
|
draining = false;
|
|
runClearTimeout(timeout);
|
|
}
|
|
|
|
process.nextTick = function (fun) {
|
|
var args = new Array(arguments.length - 1);
|
|
if (arguments.length > 1) {
|
|
for (var i = 1; i < arguments.length; i++) {
|
|
args[i - 1] = arguments[i];
|
|
}
|
|
}
|
|
queue.push(new Item(fun, args));
|
|
if (queue.length === 1 && !draining) {
|
|
runTimeout(drainQueue);
|
|
}
|
|
};
|
|
|
|
// v8 likes predictible objects
|
|
function Item(fun, array) {
|
|
this.fun = fun;
|
|
this.array = array;
|
|
}
|
|
Item.prototype.run = function () {
|
|
this.fun.apply(null, this.array);
|
|
};
|
|
process.title = 'browser';
|
|
process.browser = true;
|
|
process.env = {};
|
|
process.argv = [];
|
|
process.version = ''; // empty string to avoid regexp issues
|
|
process.versions = {};
|
|
|
|
function noop() {}
|
|
|
|
process.on = noop;
|
|
process.addListener = noop;
|
|
process.once = noop;
|
|
process.off = noop;
|
|
process.removeListener = noop;
|
|
process.removeAllListeners = noop;
|
|
process.emit = noop;
|
|
process.prependListener = noop;
|
|
process.prependOnceListener = noop;
|
|
|
|
process.listeners = function (name) { return [] }
|
|
|
|
process.binding = function (name) {
|
|
throw new Error('process.binding is not supported');
|
|
};
|
|
|
|
process.cwd = function () { return '/' };
|
|
process.chdir = function (dir) {
|
|
throw new Error('process.chdir is not supported');
|
|
};
|
|
process.umask = function() { return 0; };
|
|
|
|
},{}],18:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports["default"] = void 0;
|
|
|
|
/* global WorkerGlobalScope */
|
|
function add(fn) {
|
|
if (typeof WorkerGlobalScope === 'function' && self instanceof WorkerGlobalScope) {// this is run inside of a webworker
|
|
} else {
|
|
/**
|
|
* if we are on react-native, there is no window.addEventListener
|
|
* @link https://github.com/pubkey/unload/issues/6
|
|
*/
|
|
if (typeof window.addEventListener !== 'function') return;
|
|
/**
|
|
* for normal browser-windows, we use the beforeunload-event
|
|
*/
|
|
|
|
window.addEventListener('beforeunload', function () {
|
|
fn();
|
|
}, true);
|
|
/**
|
|
* for iframes, we have to use the unload-event
|
|
* @link https://stackoverflow.com/q/47533670/3443137
|
|
*/
|
|
|
|
window.addEventListener('unload', function () {
|
|
fn();
|
|
}, true);
|
|
}
|
|
/**
|
|
* TODO add fallback for safari-mobile
|
|
* @link https://stackoverflow.com/a/26193516/3443137
|
|
*/
|
|
|
|
}
|
|
|
|
var _default = {
|
|
add: add
|
|
};
|
|
exports["default"] = _default;
|
|
},{}],19:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports.add = add;
|
|
exports.runAll = runAll;
|
|
exports.removeAll = removeAll;
|
|
exports.getSize = getSize;
|
|
exports["default"] = void 0;
|
|
|
|
var _detectNode = _interopRequireDefault(require("detect-node"));
|
|
|
|
var _browser = _interopRequireDefault(require("./browser.js"));
|
|
|
|
var _node = _interopRequireDefault(require("./node.js"));
|
|
|
|
var USE_METHOD = _detectNode["default"] ? _node["default"] : _browser["default"];
|
|
var LISTENERS = new Set();
|
|
var startedListening = false;
|
|
|
|
function startListening() {
|
|
if (startedListening) return;
|
|
startedListening = true;
|
|
USE_METHOD.add(runAll);
|
|
}
|
|
|
|
function add(fn) {
|
|
startListening();
|
|
if (typeof fn !== 'function') throw new Error('Listener is no function');
|
|
LISTENERS.add(fn);
|
|
var addReturn = {
|
|
remove: function remove() {
|
|
return LISTENERS["delete"](fn);
|
|
},
|
|
run: function run() {
|
|
LISTENERS["delete"](fn);
|
|
return fn();
|
|
}
|
|
};
|
|
return addReturn;
|
|
}
|
|
|
|
function runAll() {
|
|
var promises = [];
|
|
LISTENERS.forEach(function (fn) {
|
|
promises.push(fn());
|
|
LISTENERS["delete"](fn);
|
|
});
|
|
return Promise.all(promises);
|
|
}
|
|
|
|
function removeAll() {
|
|
LISTENERS.clear();
|
|
}
|
|
|
|
function getSize() {
|
|
return LISTENERS.size;
|
|
}
|
|
|
|
var _default = {
|
|
add: add,
|
|
runAll: runAll,
|
|
removeAll: removeAll,
|
|
getSize: getSize
|
|
};
|
|
exports["default"] = _default;
|
|
},{"./browser.js":18,"./node.js":14,"@babel/runtime/helpers/interopRequireDefault":13,"detect-node":15}]},{},[2]);
|