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How to use ndefWatcher method in wpt

Best JavaScript code snippet using wpt

nfc-helpers.js

Source:nfc-helpers.js

1'use strict';2// These tests rely on the User Agent providing an implementation of3// platform nfc backends.4//5// In Chromium-based browsers this implementation is provided by a polyfill6// in order to reduce the amount of test-only code shipped to users. To enable7// these tests the browser must be run with these options:8//9//   --enable-blink-features=MojoJS,MojoJSTest10async function loadChromiumResources() {11  await loadScript('/resources/testdriver.js');12  await loadScript('/resources/testdriver-vendor.js');13  await import('/resources/chromium/nfc-mock.js');14}15async function initialize_nfc_tests() {16  if (typeof WebNFCTest === 'undefined') {17    const script = document.createElement('script');18    script.src = '/resources/test-only-api.js';19    script.async = false;20    const p = new Promise((resolve, reject) => {21      script.onload = () => { resolve(); };22      script.onerror = e => { reject(e); };23    })24    document.head.appendChild(script);25    await p;26    if (isChromiumBased) {27      await loadChromiumResources();28    }29  }30  assert_implements( WebNFCTest, 'WebNFC testing interface is unavailable.');31  let NFCTest = new WebNFCTest();32  await NFCTest.initialize();33  return NFCTest;34}35function nfc_test(func, name, properties) {36  promise_test(async t => {37    let NFCTest = await initialize_nfc_tests();38    t.add_cleanup(async () => {39      await NFCTest.reset();40    });41    await func(t, NFCTest.getMockNFC());42  }, name, properties);43}44const test_text_data = 'Test text data.';45const test_text_byte_array = new TextEncoder('utf-8').encode(test_text_data);46const test_number_data = 42;47const test_json_data = {level: 1, score: 100, label: 'Game'};48const test_url_data = 'https://w3c.github.io/web-nfc/';49const test_message_origin = 'https://127.0.0.1:8443';50const test_buffer_data = new ArrayBuffer(test_text_byte_array.length);51const test_buffer_view = new Uint8Array(test_buffer_data);52test_buffer_view.set(test_text_byte_array);53const fake_tag_serial_number = 'c0:45:00:02';54const test_record_id = '/test_path/test_id';55const NFCHWStatus = {};56// OS-level NFC setting is ON57NFCHWStatus.ENABLED = 1;58// no NFC chip59NFCHWStatus.NOT_SUPPORTED = NFCHWStatus.ENABLED + 1;60// OS-level NFC setting OFF61NFCHWStatus.DISABLED = NFCHWStatus.NOT_SUPPORTED + 1;62function encodeTextToArrayBuffer(string, encoding) {63  // Only support 'utf-8', 'utf-16', 'utf-16be', and 'utf-16le'.64  assert_true(65      encoding === 'utf-8' || encoding === 'utf-16' ||66      encoding === 'utf-16be' || encoding === 'utf-16le');67  if (encoding === 'utf-8') {68    return new TextEncoder().encode(string).buffer;69  }70  if (encoding === 'utf-16') {71    let uint16array = new Uint16Array(string.length);72    for (let i = 0; i < string.length; i++) {73      uint16array[i] = string.codePointAt(i);74    }75    return uint16array.buffer;76  }77  const littleEndian = encoding === 'utf-16le';78  const buffer = new ArrayBuffer(string.length * 2);79  const view = new DataView(buffer);80  for (let i = 0; i < string.length; i++) {81    view.setUint16(i * 2, string.codePointAt(i), littleEndian);82  }83  return buffer;84}85function createMessage(records) {86  if (records !== undefined) {87    let message = {};88    message.records = records;89    return message;90  }91}92function createRecord(recordType, data, id, mediaType, encoding, lang) {93  let record = {};94  if (recordType !== undefined)95    record.recordType = recordType;96  if (id !== undefined)97    record.id = id;98  if (mediaType !== undefined)99    record.mediaType = mediaType;100  if (encoding !== undefined)101    record.encoding = encoding;102  if (lang !== undefined)103    record.lang = lang;104  if (data !== undefined)105    record.data = data;106  return record;107}108function createTextRecord(data, encoding, lang) {109  return createRecord('text', data, test_record_id, undefined, encoding, lang);110}111function createMimeRecordFromJson(json) {112  return createRecord(113      'mime', new TextEncoder('utf-8').encode(JSON.stringify(json)),114      test_record_id, 'application/json');115}116function createMimeRecord(buffer) {117  return createRecord(118      'mime', buffer, test_record_id, 'application/octet-stream');119}120function createUnknownRecord(buffer) {121  return createRecord('unknown', buffer, test_record_id);122}123function createUrlRecord(url, isAbsUrl) {124  if (isAbsUrl) {125    return createRecord('absolute-url', url, test_record_id);126  }127  return createRecord('url', url, test_record_id);128}129// Compares NDEFMessageSource that was provided to the API130// (e.g. NDEFReader.write), and NDEFMessage that was received by the131// mock NFC service.132function assertNDEFMessagesEqual(providedMessage, receivedMessage) {133  // If simple data type is passed, e.g. String or ArrayBuffer or134  // ArrayBufferView, convert it to NDEFMessage before comparing.135  // https://w3c.github.io/web-nfc/#dom-ndefmessagesource136  let provided = providedMessage;137  if (providedMessage instanceof ArrayBuffer ||138      ArrayBuffer.isView(providedMessage))139    provided = createMessage([createRecord(140        'mime', providedMessage, undefined /* id */,141        'application/octet-stream')]);142  else if (typeof providedMessage === 'string')143    provided = createMessage([createRecord('text', providedMessage)]);144  assert_equals(provided.records.length, receivedMessage.data.length,145      'NDEFMessages must have same number of NDEFRecords');146  // Compare contents of each individual NDEFRecord147  for (let i = 0; i < provided.records.length; ++i)148    compareNDEFRecords(provided.records[i], receivedMessage.data[i]);149}150// Used to compare two NDEFMessage, one that is received from151// NDEFReader.onreading() EventHandler and another that is provided to mock NFC152// service.153function assertWebNDEFMessagesEqual(message, expectedMessage) {154  assert_equals(message.records.length, expectedMessage.records.length);155  for(let i in message.records) {156    let record = message.records[i];157    let expectedRecord = expectedMessage.records[i];158    assert_equals(record.recordType, expectedRecord.recordType);159    assert_equals(record.mediaType, expectedRecord.mediaType);160    assert_equals(record.id, expectedRecord.id);161    assert_equals(record.encoding, expectedRecord.encoding);162    assert_equals(record.lang, expectedRecord.lang);163    // Compares record data164    assert_array_equals(new Uint8Array(record.data),165          new Uint8Array(expectedRecord.data));166  }167}168function testMultiScanOptions(message, scanOptions, unmatchedScanOptions, desc) {169  nfc_test(async (t, mockNFC) => {170    const ndef1 = new NDEFReader();171    const ndef2 = new NDEFReader();172    const controller = new AbortController();173    // Reading from unmatched ndef will not be triggered174    ndef1.onreading = t.unreached_func("reading event should not be fired.");175    unmatchedScanOptions.signal = controller.signal;176    await ndef1.scan(unmatchedScanOptions);177    const ndefWatcher = new EventWatcher(t, ndef2, ["reading", "readingerror"]);178    const promise = ndefWatcher.wait_for("reading").then(event => {179      controller.abort();180      assertWebNDEFMessagesEqual(event.message, new NDEFMessage(message));181    });182    scanOptions.signal = controller.signal;183    await ndef2.scan(scanOptions);184    mockNFC.setReadingMessage(message);185    await promise;186  }, desc);187}188function testMultiMessages(message, scanOptions, unmatchedMessage, desc) {189  nfc_test(async (t, mockNFC) => {190    const ndef = new NDEFReader();191    const controller = new AbortController();192    const ndefWatcher = new EventWatcher(t, ndef, ["reading", "readingerror"]);193    const promise = ndefWatcher.wait_for("reading").then(event => {194      controller.abort();195      assertWebNDEFMessagesEqual(event.message, new NDEFMessage(message));196    });197    scanOptions.signal = controller.signal;198    await ndef.scan(scanOptions);199    // Unmatched message will not be read200    mockNFC.setReadingMessage(unmatchedMessage);201    mockNFC.setReadingMessage(message);202    await promise;203  }, desc);...

Using AI Code Generation

1var ndefWatcher = new NDEFWatcher();2ndefWatcher.onreading = function() {3    console.log("NDEF message found.");4    var ndefMessage = this.ndefMessage;5    console.log(ndefMessage);6};7ndefWatcher.onerror = function() {8    console.log("Error! " + this.error.name);9};10ndefWatcher.watch();11var ndefReader = new NDEFReader();12ndefReader.onreading = function() {13    console.log("NDEF message found.");14    var ndefMessage = this.ndefMessage;15    console.log(ndefMessage);16};17ndefReader.onerror = function() {18    console.log("Error! " + this.error.name);19};20ndefReader.scan();21var ndefWriter = new NDEFWriter();22ndefWriter.onreading = function() {23    console.log("NDEF message found.");24    var ndefMessage = this.ndefMessage;25    console.log(ndefMessage);26};27ndefWriter.onerror = function() {28    console.log("Error! " + this.error.name);29};30ndefWriter.write("Hello World");31var ndefWriter = new NDEFWriter();32ndefWriter.onreading = function() {33    console.log("NDEF message found.");34    var ndefMessage = this.ndefMessage;35    console.log(ndefMessage);36};37ndefWriter.onerror = function() {38    console.log("Error! " + this.error.name);39};40ndefWriter.write("Hello World");41var ndefWriter = new NDEFWriter();42ndefWriter.onreading = function() {43    console.log("NDEF message found.");44    var ndefMessage = this.ndefMessage;45    console.log(ndefMessage);46};47ndefWriter.onerror = function() {48    console.log("Error! " + this.error.name);49};50ndefWriter.write("Hello World");51var ndefWriter = new NDEFWriter();52ndefWriter.onreading = function() {53    console.log("NDEF message found.");54    var ndefMessage = this.ndefMessage;55    console.log(ndefMessage);56};

Using AI Code Generation

1var wptoolkit = require('wptoolkit');2wptoolkit.ndefWatcher(function (err, data) {3    console.log(data);4});5{6  "scripts": {7  },8  "dependencies": {9  }10}

Using AI Code Generation

1var wpt = require('wpt');2var ndefWatcher = wpt.ndefWatcher;3var ndef = ndefWatcher(function(err, tag) {4  if (err) {5    console.log(err);6  } else {7    console.log(tag);8  }9});10var nfc = require('nfc');11var ndefWatcher = nfc.ndefWatcher;12var ndef = ndefWatcher(function(err, tag) {13  if (err) {14    console.log(err);15  } else {16    console.log(tag);17  }18});

Using AI Code Generation

1var NDEFWatcher = require('./NDEFWatcher.js');2var ndefWatcher = new NDEFWatcher();3ndefWatcher.onfound = function (message) {4    console.log('found: ' + JSON.stringify(message));5};6ndefWatcher.onlost = function () {7    console.log('lost');8};9ndefWatcher.start();10var NDEFWriter = require('./NDEFWriter.js');11var ndefWriter = new NDEFWriter();12ndefWriter.write('Hello World!').then(function () {13    console.log('Message written');14}, function (error) {15    console.log('Write failed: ' + error);16});17var NFCReader = require('./NFCReader.js');18var nfcReader = new NFCReader();19nfcReader.onreading = function (event) {20    console.log('NDEF message read: ' + JSON.stringify(event.message));21};22nfcReader.start();23var NFCWriter = require('./NFCWriter.js');24var nfcWriter = new NFCWriter();25nfcWriter.write('Hello World!').then(function () {26    console.log('Message written');27}, function (error) {28    console.log('Write failed: ' + error);29});30var NFCAdapter = require('./NFCAdapter.js');31var nfcAdapter = new NFCAdapter();32nfcAdapter.onreading = function (event) {33    console.log('NDEF message read: ' + JSON.stringify(event.message));34};35nfcAdapter.start();36var NFCPush = require('./NFCPush.js');37var nfcPush = new NFCPush();38nfcPush.onreading = function (event) {39    console.log('NDEF message read: ' + JSON.stringify(event.message));40};41nfcPush.start();

Using AI Code Generation

1var ndefWatcher = require('ndefWatcher');2var ndefWatcher = new ndefWatcher();3ndefWatcher.on('read', function() {4    console.log('NDEF read!');5});6ndefWatcher.on('write', function() {7    console.log('NDEF written!');8});9ndefWatcher.on('error', function() {10    console.log('NDEF error!');11});12ndefWatcher.on('watch', function() {13    console.log('NDEF watch!');14});15ndefWatcher.on('unwatch', function() {16    console.log('NDEF unwatch!');17});18ndefWatcher.watch();19var ndefWatcher = require('ndefWatcher');20var ndefWatcher = new ndefWatcher();21ndefWatcher.on('read', function() {22    console.log('NDEF read!');23});24ndefWatcher.on('write', function() {25    console.log('NDEF written!');26});27ndefWatcher.on('error', function() {28    console.log('NDEF error!');29});30ndefWatcher.on('watch', function() {31    console.log('NDEF watch!');32});33ndefWatcher.on('unwatch', function() {34    console.log('NDEF unwatch!');35});36ndefWatcher.watch();37var ndefWatcher = require('ndefWatcher');38var ndefWatcher = new ndefWatcher();39ndefWatcher.on('read', function() {40    console.log('NDEF read!');41});42ndefWatcher.on('write', function() {43    console.log('NDEF written!');44});45ndefWatcher.on('error', function() {46    console.log('NDEF error!');47});48ndefWatcher.on('watch', function() {49    console.log('NDEF watch!');50});51ndefWatcher.on('unwatch', function() {52    console.log('NDEF unwatch!');53});54ndefWatcher.watch();55var ndefWatcher = require('ndefWatcher');56var ndefWatcher = new ndefWatcher();57ndefWatcher.on('read', function() {58    console.log('NDEF read!');59});60ndefWatcher.on('write', function() {61    console.log('NDEF written!');62});63ndefWatcher.on('error', function() {64    console.log('NDEF error!');65});66ndefWatcher.on('watch', function() {67    console.log('NDEF watch!');68});69ndefWatcher.on('

Using AI Code Generation

1var callback = function (err, data) {2};3{ tag: 'NDEF', data: 'some data' }4var callback = function (err, data) {5};6{ tag: 'NDEF', data: 'some data' }7var callback = function (err, data) {8};9{ tag: 'NDEF', data: 'some data' }10var callback = function (err, data) {11};12{ tag: 'NDEF', data: 'some data' }13var callback = function (err, data) {14};15{ tag: 'NDEF', data: '

Using AI Code Generation

1var wptools = require('wptools');2var ndefWatcher = wptools.ndefWatcher;3var ndef = require('ndef');4ndefWatcher(function(err, message) {5  if (err) {6    return console.log(err);7  }8  console.log(message.uid);9  console.log(message.uid.toString('hex'));10});

Using AI Code Generation

1var ndefWatcher = new NDEFWatcher();2ndefWatcher.onreading = function (event) {3    console.log("NDEF message changed!");4    console.log("NDEF message: " + event.message);5};6ndefWatcher.start();7ndefWatcher.stop();8ndefWatcher.close();

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