class AjaxChatPluginVoiceRecognition

# File lib/h2g_ajaxchat-plugin-voicerecognition.rb, line 12
def initialize(ac, settings, debug: false)
  super(ac, settings, debug: debug)
  @lang = settings[:lang] || 'en-GB'
end

# File lib/h2g_ajaxchat-plugin-voicerecognition.rb, line 17
def apply()

  html = @ac.views[:index].html

  a = html.lines
  r = a.grep /<input name="usermsg"/
  i = a.index(r.first)
  a2 = a.insert i+1, "<button id='start-button'>Start Listening</button>\n"
  @ac.views[:index].html = a2.join

  @ac.views[:index].js = @ac.views[:index].js + js()

end

# File lib/h2g_ajaxchat-plugin-voicerecognition.rb, line 33
  def js()
<<EOF
// voice recognition

  function startListening() {
    var recognition = new (webkitSpeechRecognition || SpeechRecognition)();
    recognition.lang = '#{@lang}';
    recognition.interimResults = false;
    recognition.maxAlternatives = 1;
    recognition.start();

    [
     'onaudiostart',
     'onaudioend',
     'onend',
     'onerror',
     'onnomatch',
     'onresult',
     'onsoundstart',
     'onsoundend',
     'onspeechend',
     'onstart'
    ].forEach(function(eventName) {
      recognition[eventName] = function(e) {
        console.log(eventName, e);
      };
    });

    document.querySelector('#start-button').innerHTML = 'Listening...';

    recognition.onend = function() {
      document.querySelector('#start-button').innerHTML = 'Start Listening';
    };
    recognition.onresult = function() {
      e = document.querySelector('#usermsg');
      e.value = event.results[0][0].transcript;
      ajaxRequest('chatter?msg=' + e.value, ajaxResponse1)
      e.value = '';
    };
  };

  (function() {
    document.querySelector('#start-button').addEventListener('click', startListening);
  })();

EOF
  end