chrome/common/extensions/api/hotword_private.idl

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 // The <code>chrome.hotwordPrivate</code> API allows extensions to access and
   6 // mutate the preference for enabling hotword search. It also provides
   7 // information on whether the hotword search is available. This API provides an
   8 // event interface to transmit to the extension a signal that the preference fo
   9 // hotword search has change.
  10 //
  11 // For an FYI, visit http://goo.gl/AyHbkH
  12
  13 [nodoc] namespace hotwordPrivate {
  14
  15   dictionary StatusDetails {
  16     // Whether the hotword preference has been set.
  17     boolean enabledSet;
  18
  19     // If the hotword extension is enabled. Will always be false if |available|
  20     // is false.
  21     boolean enabled;
  22
  23     // Whether the hotword extension is available to be enabled
  24     boolean available;
  25
  26     // Whether the sound of "Ok, Google" plus a few seconds before is sent
  27     // back to Google.
  28     boolean audioLoggingEnabled;
  29   };
  30
  31   // The type of the recognized hotword. Right now it only has 'search' but
  32   // could be expanded to other types of actions in the future.
  33   enum HotwordType { search };
  34
  35   callback GenericDoneCallback = void ();
  36   callback StatusDetailsCallback = void(StatusDetails result);
  37
  38   interface Functions {
  39     // Sets the current enabled state of hotword search.
  40     // True: enable hotword search. False: disable hotword search.
  41     static void setEnabled(boolean state,
  42                            optional GenericDoneCallback callback);
  43
  44     // Retrieves the current state of hotword search.
  45     // The result is put into a StatusDetails object.
  46     static void getStatus(StatusDetailsCallback callback);
  47
  48     // Sets the current enabled state of audio logging in the extension.
  49     // True: logging enabled. False: no logging.
  50     static void setAudioLoggingEnabled(boolean state,
  51                                        optional GenericDoneCallback callback);
  52
  53     // Sets the current state of the browser-requested hotword session.
  54     static void setHotwordSessionState(boolean started,
  55                                        optional GenericDoneCallback callback);
  56
  57     // Notifies that a hotword has been recognized in the browser-requested
  58     // hotword session.
  59     static void notifyHotwordRecognition(HotwordType type,
  60                                          optional GenericDoneCallback callback);
  61   };
  62
  63   interface Events {
  64     // Fired when the hotword search enabled preference is changed.
  65     static void onEnabledChanged();
  66
  67     // Fired when the browser wants to start a hotword session.
  68     static void onHotwordSessionRequested();
  69
  70     // Fired when the browser wants to stop the requested hotword session.
  71     static void onHotwordSessionStopped();
  72   };
  73 };