Add support for sound in notify plugin.

Author: Stephen Brennan

src/jupyter_contrib_nbextensions/nbextensions/notify/notify.js

@@ -11,11 +11,13 @@ Add this file to $(ipython locate)/nbextensions/
 define([
   "jquery",
   "base/js/namespace",
-], function ($, IPython) {
+  "require",
+], function ($, IPython, require) {
   "use strict";
 
   var params = {
-    sticky: false
+    sticky: false,
+    sound: false
   };
 
   var current_time = function() {
@@ -102,10 +104,15 @@ define([
   var notify = function () {
     var elapsed_time = current_time() - start_time;
     if (enabled && !first_start && !busy_kernel && elapsed_time >= min_time) {
-      var n = new Notification(IPython.notebook.notebook_name, {
+      var opts = {
         body: "Kernel is now idle\n(ran for " + Math.round(elapsed_time) + " secs)",
+        icon: "/static/base/images/favicon.ico",
         requireInteraction: params.sticky
-      });
+      };
+      if (params.sound) {
+        opts["sound"] = require.toUrl("./notify.mp3");
+      }
+      var n = new Notification(IPython.notebook.notebook_name, opts);
       n.onclick = function(event){ window.focus(); }
     }
     if (first_start) {

src/jupyter_contrib_nbextensions/nbextensions/notify/notify.mp3

@@ -9,6 +9,10 @@ Main: notify.js
 Compatibility: 4.x, 5.x
 Parameters:
 - name: notify.sticky
-  description: Require interactions on notifications to dismiss them.
+  description: Require interactions on notifications to dismiss them. (Chrome only)
+  input_type: checkbox
+  default: false
+- name: notify.sound
+  description: Play notification sound. (Not yet supported in browsers)
   input_type: checkbox
   default: false

src/jupyter_contrib_nbextensions/nbextensions/notify/notify.yaml

@@ -19,14 +19,23 @@ notebook's metadata and restored when the notebook is re-opened.
 You may configure the plugin so that notifications require manual dismissal
 before disappearing. Browser support is limited, see
 [here](https://developer.mozilla.org/en-US/docs/Web/API/notification/requireInteraction)
-to check if your browser supports this.
+to check if your browser supports this. You may also configure the plugin so
+that notifications play a sound, although this is currently
+[unsupported](https://developer.mozilla.org/en-US/docs/Web/API/notification/sound)
+in all major browsers.
 
 ![notification](notification.png "notification")
 
 
 ## Original Source
 This extension originally comes from [@sjpfenniger](https://github.com/sjpfenninger)'s [GitHub repository](https://github.com/sjpfenninger/ipython-extensions).
 
+## Credits
+
+This extension contains sounds created by RSilveira_88 on fresound.org, licensed
+under the CC-BY 3.0 License. Modifications by morrisjim. You may find the
+modified version [here](http://freesound.org/people/morrisjm/sounds/268756/) and
+the original [here](http://freesound.org/people/RSilveira_88/sounds/216306/).
 
 ## License