The Tor Browser: content/media/webspeech/recognition/test/head.js@a63d609f5ebe (annotated)

content/media/webspeech/recognition/test/head.js@a63d609f5ebe (annotated)

content/media/webspeech/recognition/test/head.js

Thu, 15 Jan 2015 15:55:04 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Thu, 15 Jan 2015 15:55:04 +0100
branch: TOR_BUG_9701
changeset 9: a63d609f5ebe
permissions: -rw-r--r--

Back out 97036ab72558 which inappropriately compared turds to third parties.

 "use strict";
 const DEFAULT_AUDIO_SAMPLE_FILE = "hello.ogg";
 const SPEECH_RECOGNITION_TEST_REQUEST_EVENT_TOPIC = "SpeechRecognitionTest:RequestEvent";
 const SPEECH_RECOGNITION_TEST_END_TOPIC = "SpeechRecognitionTest:End";
 var errorCodes = {
   NO_SPEECH : "no-speech",
   ABORTED : "aborted",
   AUDIO_CAPTURE : "audio-capture",
   NETWORK : "network",
   NOT_ALLOWED : "not-allowed",
   SERVICE_NOT_ALLOWED : "service-not-allowed",
   BAD_GRAMMAR : "bad-grammar",
   LANGUAGE_NOT_SUPPORTED : "language-not-supported"
 };
 var Services = SpecialPowers.Cu.import("resource://gre/modules/Services.jsm").Services;
 function EventManager(sr) {
   var self = this;
   var nEventsExpected = 0;
   self.eventsReceived = [];
   var allEvents = [
     "audiostart",
     "soundstart",
     "speechstart",
     "speechend",
     "soundend",
     "audioend",
     "result",
     "nomatch",
     "error",
     "start",
     "end"
   ];
   var eventDependencies = {
     "speechend": "speechstart",
     "soundent": "soundstart",
     "audioend": "audiostart"
   };
   var isDone = false;
   // AUDIO_DATA events are asynchronous,
   // so we queue events requested while they are being
   // issued to make them seem synchronous
   var isSendingAudioData = false;
   var queuedEventRequests = [];
   // register default handlers
   for (var i = 0; i < allEvents.length; i++) {
     (function (eventName) {
       sr["on" + eventName] = function (evt) {
         var message = "unexpected event: " + eventName;
         if (eventName == "error") {
           message += " -- " + evt.message;
         }
         ok(false, message);
         if (self.doneFunc && !isDone) {
           isDone = true;
           self.doneFunc();
         }
       };
     })(allEvents[i]);
   }
   self.expect = function EventManager_expect(eventName, cb) {
     nEventsExpected++;
     sr["on" + eventName] = function(evt) {
       self.eventsReceived.push(eventName);
       ok(true, "received event " + eventName);
       var dep = eventDependencies[eventName];
       if (dep) {
         ok(self.eventsReceived.indexOf(dep) >= 0,
            eventName + " must come after " + dep);
       }
       cb && cb(evt, sr);
       if (self.doneFunc && !isDone &&
           nEventsExpected === self.eventsReceived.length) {
         isDone = true;
         self.doneFunc();
       }
     }
   }
   self.requestFSMEvent = function EventManager_requestFSMEvent(eventName) {
     if (isSendingAudioData) {
       info("Queuing event " + eventName + " until we're done sending audio data");
       queuedEventRequests.push(eventName);
       return;
     }
     var subject = null;
     if (eventName === "EVENT_AUDIO_DATA") {
       isSendingAudioData = true;
       var audioTag = document.createElement("audio");
       audioTag.src = self.audioSampleFile;
       subject = audioTag.mozCaptureStreamUntilEnded();
       audioTag.addEventListener("ended", function() {
         info("Sample stream ended, requesting queued events");
         isSendingAudioData = false;
         while (queuedEventRequests.length) {
           self.requestFSMEvent(queuedEventRequests.shift());
         }
       });
       audioTag.play();
     }
     info("requesting " + eventName);
     Services.obs.notifyObservers(subject,
                                  SPEECH_RECOGNITION_TEST_REQUEST_EVENT_TOPIC,
                                  eventName);
   }
   self.requestTestEnd = function EventManager_requestTestEnd() {
     Services.obs.notifyObservers(null, SPEECH_RECOGNITION_TEST_END_TOPIC, null);
   }
 }
 function buildResultCallback(transcript) {
   return (function(evt) {
     is(evt.results[0][0].transcript, transcript, "expect correct transcript");
   });
 }
 function buildErrorCallback(errcode) {
   return (function(err) {
     is(err.error, errcode, "expect correct error code");
   });
 }
 function performTest(options) {
   var prefs = options.prefs;
   prefs.unshift(
     ["media.webspeech.recognition.enable", true],
     ["media.webspeech.test.enable", true]
   );
   SpecialPowers.pushPrefEnv({set: prefs}, function() {
     var sr = new SpeechRecognition();
     var em = new EventManager(sr);
     for (var eventName in options.expectedEvents) {
       var cb = options.expectedEvents[eventName];
       em.expect(eventName, cb);
     }
     em.doneFunc = function() {
       em.requestTestEnd();
       if (options.doneFunc) {
         options.doneFunc();
       }
     }
     em.audioSampleFile = DEFAULT_AUDIO_SAMPLE_FILE;
     if (options.audioSampleFile) {
       em.audioSampleFile = options.audioSampleFile;
     }
     for (var i = 0; i < options.eventsToRequest.length; i++) {
       em.requestFSMEvent(options.eventsToRequest[i]);
     }
   });
 }