Introduces the speech recognition UI to app_list.

chrome/browser/resources/app_list/speech_manager.js

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /**
  * @fileoverview The class to Manage both offline / online speech recognition.
  */
 
 <include src="plugin_manager.js"/>
 <include src="audio_manager.js"/>
@@ skipping 47 matching lines @@
    *
    * @param {cr.event.Event} event The event object for the audio data.
    * @private
    */
   SpeechManager.prototype.onAudioLevel_ = function(event) {
     var data = event.data;
     var level = 0;
     for (var i = 0; i < data.length; ++i)
       level += Math.abs(data[i]);
     level /= data.length;
-    // TODO(mukai): use the result to make the audio feedback during the speech
-    // recognition.
+    chrome.send('speechSoundLevel', [level]);
   };
 
   /**
    * Called when the hotword recognizer is ready.
    *
    * @param {PluginManager} pluginManager The hotword plugin manager which gets
    *   ready.
    * @private
    */
   SpeechManager.prototype.onHotwordRecognizerReady_ = function(pluginManager) {
@@ skipping 19 matching lines @@
 
   /**
    * Called when the speech recognition has happened.
    *
    * @param {string} result The speech recognition result.
    * @param {boolean} isFinal Whether the result is final or not.
    */
   SpeechManager.prototype.onSpeechRecognized = function(result, isFinal) {
     console.log('speech result: ' + result + ' ' +
         (isFinal ? 'final' : 'interim'));
-    if (isFinal) {
-      chrome.send('search', [result]);
+    chrome.send('speechResult', [result, isFinal]);
+    if (isFinal)
       this.speechRecognitionManager_.stop();
-    }
   };
 
   /**
    * Called when the speech recognition has started.
    */
   SpeechManager.prototype.onSpeechRecognitionStarted = function() {
     this.setState_(SpeechState.RECOGNIZING);
-    chrome.send('setSpeechRecognitionState', [true]);
+    chrome.send('setSpeechRecognitionState', ['on']);
   };
 
   /**
    * Called when the speech recognition has ended.
    */
   SpeechManager.prototype.onSpeechRecognitionEnded = function() {
     // Restarts the hotword recognition.
     if (this.pluginManager_) {
       this.pluginManager_.startRecognizer();
       this.audioManager_.start();
       this.setState_(SpeechState.HOTWORD_RECOGNIZING);
     } else {
       this.audioManager_.stop();
     }
-    chrome.send('setSpeechRecognitionState', [false]);
+    chrome.send('setSpeechRecognitionState', ['off']);
   };
 
   /**
+   * Called when a speech has started.
+   */
+  SpeechManager.prototype.onSpeechStarted = function() {
+    console.log('speechStarted: ' + this.state);

[xiyuan, 2013/12/05 22:06:30]

nit: remove debugging log?

[Jun Mukai, 2013/12/06 00:31:10]

Done.

+    if (this.state == SpeechState.RECOGNIZING)
+      chrome.send('setSpeechRecognitionState', ['in-speech']);
+  };
+
+  /**
+   * Called when a speech has ended.
+   */
+  SpeechManager.prototype.onSpeechEnded = function() {
+    console.log('speechEnded: ' + this.state);

[xiyuan, 2013/12/05 22:06:30]

nit: remove debugging log?

[Jun Mukai, 2013/12/06 00:31:10]

Done.

+    if (this.state == SpeechState.RECOGNIZING)
+      chrome.send('setSpeechRecognitionState', ['on']);
+  };
+
+  /**
    * Called when an error happened during the speech recognition.
    *
    * @param {SpeechRecognitionError} e The error object.
    */
   SpeechManager.prototype.onSpeechRecognitionError = function(e) {
     this.setState_(SpeechState.READY);
   };
 
   /**
    * Starts the speech recognition session.
@@ skipping 36 matching lines @@
       if (this.audioManager_.state == speech.AudioState.STOPPED)
         this.audioManager_.start();
       this.speechRecognitionManager_.start();
     }
   };
 
   return {
     SpeechManager: SpeechManager
   };
 });