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How to use message_port method in wpt

Best JavaScript code snippet using wpt

inline-scripts.js

Source:inline-scripts.js

1/* global ComponentSandbox */2(() => {3  const { createMessageEventListener, isPlainObject, safeParse, toMessage } = ComponentSandbox;4  let LISTENER_ID = 0;5  let LISTENER_BUFFER = {};6  let LISTENER_DEREGS = {};7  let EVENT_BUFFER = [];8  let CALLBACK_ID = 0;9  let CALLBACK_BUFFER = {};10  let MESSAGE_PORT;11  let MESSAGE_EVENT_LISTENER;12  function subscribe(evt, cb, src) {13    if (!MESSAGE_EVENT_LISTENER) {14      // The message port hasn't been provided yet by the host => Create proxy listener and deregister handler15      const id = LISTENER_ID++;16      LISTENER_BUFFER[id] = { evt, cb, src };17      return () => {18        if (LISTENER_DEREGS && LISTENER_DEREGS[id]) {19          LISTENER_DEREGS[id]();20          delete LISTENER_DEREGS[id];21        }22        if (LISTENER_BUFFER && LISTENER_BUFFER[id]) {23          delete LISTENER_BUFFER[id];24        }25      };26    } else {27      // Register listener and return deregister handler28      return MESSAGE_EVENT_LISTENER(evt, cb, src);29    }30  }31  function emit(obj, cb) {32    if (!MESSAGE_PORT) {33      EVENT_BUFFER.push({ obj, cb });34    } else {35      const { message, transfer } = toMessage(obj);36      let callbackId;37      if (typeof cb === 'function') {38        // Generate a unique callback ID and store the callback in a buffer39        // Pass the callback ID to the recipient/host as part of the message40        callbackId = `c${Date.now()}${++CALLBACK_ID}`;41        CALLBACK_BUFFER[callbackId] = cb;42      }43      MESSAGE_PORT.postMessage(callbackId ? { ...message, callback: callbackId } : message, transfer);44    }45  }46  // Prevent modifications to global `listen`, `subscribe` and `emit`47  Object.defineProperty(window, 'listen', {48    configurable: false,49    writable: false,50    enumerable: false,51    value: subscribe52  });53  Object.defineProperty(window, 'subscribe', {54    configurable: false,55    writable: false,56    enumerable: false,57    value: subscribe58  });59  Object.defineProperty(window, 'emit', {60    configurable: false,61    writable: false,62    enumerable: false,63    value: emit64  });65  // Prevent modifications to global `ComponentSandbox`66  [isPlainObject, safeParse, toMessage, createMessageEventListener].forEach(fn => {67    Object.defineProperty(ComponentSandbox, fn.name, {68      configurable: false,69      writable: false70    });71  });72  Object.defineProperty(window, 'ComponentSandbox', {73    configurable: false,74    writable: false75  });76  function syncEventListener({ data, ports }) {77    const { type } = safeParse(data);78    if (type === 'SBX:SYN' && !MESSAGE_PORT && Array.isArray(ports) && ports[0]) {79      window.removeEventListener('message', syncEventListener, false);80      MESSAGE_PORT = ports[0];81      MESSAGE_EVENT_LISTENER = createMessageEventListener(MESSAGE_PORT);82      MESSAGE_PORT.start();83      // Send `SBX:ACK` event84      window.emit({ type: 'SBX:ACK' });85      // Flush listener buffer86      const keys = Object.keys(LISTENER_BUFFER); // Prevent use of `Object.values` here to shim-free keep support for IE1187      keys.forEach(key => {88        const { evt, cb, src } = LISTENER_BUFFER[key];89        LISTENER_DEREGS[key] = MESSAGE_EVENT_LISTENER(evt, cb, src);90      });91      // Flush event buffer92      EVENT_BUFFER.forEach(({ obj, cb }) => window.emit(obj, cb));93      // Remove buffers94      LISTENER_BUFFER = null;95      EVENT_BUFFER = null;96    }97  }98  function focusEventListener() {99    setTimeout(() => {100      window.emit({101        type: 'SBX:FOCUS',102        payload: {103          isDocumentElement: document.activeElement === document.documentElement104        }105      });106    });107  }108  function blurEventListener() {109    setTimeout(() => {110      window.emit({ type: 'SBX:BLUR' });111    });112  }113  window.addEventListener('message', syncEventListener, false);114  window.addEventListener('focus', focusEventListener, false);115  window.addEventListener('blur', blurEventListener, false);116  window.onerror = (msg, url, lineNo, columnNo, error) => {117    window.emit({ type: 'SBX:ERROR', payload: { msg, url, lineNo, columnNo, error } });118    return true;119  };120  Object.defineProperty(window, 'onerror', {121    configurable: false,122    writable: false123  });124  window.listen('SBX:ECHO', ({ type, payload, source, transfer }) => {125    window.emit({ type, payload, source, transfer });126  });127  window.listen('SBX:CBK', (payload, { callback, source, transfer }) => {128    if (typeof callback === 'string' && CALLBACK_BUFFER[callback]) {129      // Invoke a certain stored callback and remove it immediately after its invocation130      CALLBACK_BUFFER[callback](payload, { source, transfer });131      delete CALLBACK_BUFFER[callback];132    }133  });134  // Remove security relevant properties from the sandboxed `window` object135  function safeDelete(property) {136    try {137      delete window[property];138    } catch (e) {139      // Intentionally empty140    }141  }142  safeDelete('parent');143  safeDelete('top');144  safeDelete('frameElement');145  safeDelete('opener');...

message-target-shared-worker.js

Source:message-target-shared-worker.js

1'use strict';2importScripts(3  'test-helpers.js',4  'messaging-serialize-helpers.js',5  'message-target.js'6);7self.addEventListener('connect', connect_event => {8  const message_port = connect_event.ports[0];9  add_message_event_handlers(10    /*receiver=*/message_port, /*target=*/message_port);11  message_port.start();...

Using AI Code Generation

1test(function() {2  var message_port = new MessageChannel();3  var port1 = message_port.port1;4  var port2 = message_port.port2;5  port1.onmessage = function(e) {6    assert_equals(e.data, "Hello World", "Message received");7    assert_equals(e.ports.length, 1, "Event has one port");8    assert_equals(e.ports[0], port2, "Event has port2");9    port2.postMessage("Hello World");10  };11  port2.onmessage = function(e) {12    assert_equals(e.data, "Hello World", "Message received");13    assert_equals(e.ports.length, 0, "Event has no ports");14  };15  port1.postMessage("Hello World", [port2]);16}, "MessageChannel: MessagePort.postMessage with one port");17test(function() {18  var message_port = new MessageChannel();19  var port1 = message_port.port1;20  var port2 = message_port.port2;21  var port3 = message_port.port1;22  port1.onmessage = function(e) {23    assert_equals(e.data, "Hello World", "Message received");24    assert_equals(e.ports.length, 2, "Event has two ports");25    assert_equals(e.ports[0], port2, "Event has port2");26    assert_equals(e.ports[1], port3, "Event has port3");27    port2.postMessage("Hello World");28    port3.postMessage("Hello World");29  };30  port2.onmessage = function(e) {31    assert_equals(e.data, "Hello World", "Message received");32    assert_equals(e.ports.length, 0, "Event has no ports");33  };34  port3.onmessage = function(e) {35    assert_equals(e.data, "Hello World", "Message received");36    assert_equals(e.ports.length, 0, "Event has no ports");37  };38  port1.postMessage("Hello World", [port2, port3]);39}, "MessageChannel: MessagePort.postMessage with two ports");40test(function() {41  var message_port = new MessageChannel();42  var port1 = message_port.port1;43  var port2 = message_port.port2;44  port1.onmessage = function(e) {

Using AI Code Generation

1self.onmessage = function(msg) {2  postMessage(msg.data);3};4var worker = new Worker('test.js');5worker.onmessage = function(msg) {6  postMessage(msg.data);7};8worker.postMessage('hello');9self.addEventListener('message', function(e) {10  postMessage(e.data);11}, false);12var worker = new Worker('test.js');13worker.addEventListener('message', function(e) {14  postMessage(e.data);15}, false);16worker.postMessage('hello');17self.onmessage = function(msg) {18  postMessage(msg.data);19};20var worker = new Worker('test.js');21worker.onmessage = function(msg) {22  postMessage(msg.data);23};24worker.postMessage('hello');25self.addEventListener('message', function(e) {26  postMessage(e.data);27}, false);28var worker = new Worker('test.js');29worker.addEventListener('message', function(e) {30  postMessage(e.data);31}, false);32worker.postMessage('hello');33self.onmessage = function(msg) {34  postMessage(msg.data);35};36var worker = new Worker('test.js');37worker.onmessage = function(msg) {38  postMessage(msg.data);39};40worker.postMessage('hello');

Using AI Code Generation

1var message_port = new MessagePort();2message_port.onmessage = function(event) {3  test(function() {4    assert_equals(event.data, "Hello World!", "Message received");5  }, "Message received");6};7message_port.postMessage("Hello World!");

Using AI Code Generation

1var wpt = require('wpt');2var port = wpt.message_port();3port.onmessage = function(e) {4  console.log(e.data);5  port.postMessage('Hello from test.js');6};7var wpt = require('wpt');8var port = wpt.message_port();9port.onmessage = function(e) {10  console.log(e.data);11  port.postMessage('Hello from test2.js');12};13var wpt = require('wpt');14var port = wpt.message_port();15port.onmessage = function(e) {16  console.log(e.data);17  port.postMessage('Hello from test3.js');18};19var wpt = require('wpt');20var port = wpt.message_port();21port.onmessage = function(e) {22  console.log(e.data);23  port.postMessage('Hello from test4.js');24};25var wpt = require('wpt');26var port = wpt.message_port();27port.onmessage = function(e) {28  console.log(e.data);29  port.postMessage('Hello from test5.js');30};31var wpt = require('wpt');32var port = wpt.message_port();33port.onmessage = function(e) {34  console.log(e.data);35  port.postMessage('Hello from test6.js');36};37var wpt = require('wpt');38var port = wpt.message_port();39port.onmessage = function(e) {40  console.log(e.data);41  port.postMessage('Hello from test7.js');42};43var wpt = require('wpt');44var port = wpt.message_port();45port.onmessage = function(e) {46  console.log(e.data);47  port.postMessage('Hello from test8.js');48};49var wpt = require('wpt');50var port = wpt.message_port();

Using AI Code Generation

1var wpt = require('webpagetest');2var options = {3};4wpt.runTest(options, function(err, data) {5    if (err) {6        return console.log('Error: ' + err);7    }8    console.log('Test submitted successfully. View results at: ' + data.data.userUrl);9});10var http = require('http');11var util = require('util');12var EventEmitter = require('events').EventEmitter;13var WebPageTest = function(options) {14    this.options = options;15    this.messagePort = options.messagePort || 8888;16    this.messagePortServer = null;17    this.messagePortClients = [];18    this.messagePortClientsCount = 0;19    this.messagePortClientsData = {};20    this.messagePortClientsDataCount = 0;21    this.messagePortClientsDataLimit = 1000;22    this.messagePortClientsDataLimitReached = false;23    this.messagePortClientsDataLimitReachedMessage = 'Message port clients data limit reached.';24    this.messagePortClientsDataLimitReachedMessageSent = false;25    this.messagePortClientsDataLimitReachedMessageSentCount = 0;26    this.messagePortClientsDataLimitReachedMessageSentCountLimit = 1000;27    this.messagePortClientsDataLimitReachedMessageSentCountLimitReached = false;28    this.messagePortClientsDataLimitReachedMessageSentCountLimitReachedMessage = 'Message port clients data limit reached message sent count limit reached.';29};30util.inherits(WebPageTest, EventEmitter);31WebPageTest.prototype.runTest = function(options, callback) {32    var self = this;33    var httpOptions = {34        path: '/runtest.php?url=' + encodeURIComponent(options.url) + '&k=' + options.key +

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