IPython magic to get modal notification in a notebook.

gistfile1.json

{
 "metadata": {
  "name": "",
  "signature": "sha256:904cc20b78d0ec5dade39bcf72cb7dd3043f9da6992e6ba87d88dfa5ed2165b4"
 },
 "nbformat": 3,
 "nbformat_minor": 0,
 "worksheets": [
  {
   "cells": [
    {
     "cell_type": "heading",
     "level": 1,
     "metadata": {},
     "source": [
      "An IPython magic for modal notifications"
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "I have been doing some hard-core processing using IPython Notebook. Because of that, I needed to check from time to time if it was finished or not. This led me to think that it would be nice to have a 'big and loud' on-screen notification.\n",
      "\n",
      "I remembered that IPython Notebook 2.0 uses [Bootstrap](http://getboostrap.com/) and decided to make a code a line *magic* show a model windows with a message of my choice. This would make a great nbextension... but I will leave this for my next afternoon hack."
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "from IPython.html import widgets\n",
      "from IPython.display import display\n",
      "import string\n",
      "import random"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 1
    },
    {
     "cell_type": "heading",
     "level": 2,
     "metadata": {},
     "source": [
      "Creating the notification function"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "def do_notify(line):\n",
      "    suffix = ''.join(random.choice(string.digits) for _ in range(6)) # a suffix to avoid clashes\n",
      "    modal = widgets.HTMLWidget(value =\n",
      "                              '''\n",
      "                              <div class=\"modal fade\" id=\"notif_modal_'''+suffix+'''\" tabindex=\"-1\" role=\"dialog\" aria-labelledby=\"myModalLabel\" aria-hidden=\"false\">\n",
      "                              <div class=\"modal-dialog\">\n",
      "                              <div class=\"modal-content\">\n",
      "                              <div class=\"modal-header\">\n",
      "                              <button type=\"button\" class=\"close\" data-dismiss=\"modal\"><span aria-hidden=\"false\">&times;</span></button>\n",
      "                              <h4 class=\"modal-title\" id=\"myModalLabel\">Attention!</h4>\n",
      "                              </div>\n",
      "                              <div class=\"modal-body\">'''\n",
      "                              +line+\n",
      "                              '''</div>\n",
      "                              <div class=\"modal-footer\">\n",
      "                              <button type=\"button\" class=\"btn btn-default\" data-dismiss=\"modal\">Close</button>\n",
      "                              </div>\n",
      "                              </div>\n",
      "                              </div>\n",
      "                              </div>\n",
      "                              <script type=\"text/javascript\">\n",
      "                              $(\"#notif_modal_'''+suffix+'''\").modal('show');\n",
      "                              </script>\n",
      "                              ''')\n",
      "    display(modal)"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 2
    },
    {
     "cell_type": "heading",
     "level": 2,
     "metadata": {},
     "source": [
      "Registering the functionas a line magic"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "ip = get_ipython()"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 3
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "ip.register_magic_function(do_notify, 'line', 'notify')"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 4
    },
    {
     "cell_type": "heading",
     "level": 2,
     "metadata": {},
     "source": [
      "Testing the magic"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "import time"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 5
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "print('Philosopher sleeping...')\n",
      "time.sleep(5)\n",
      "print('Up and hungry...')\n",
      "%notify Dinner is ready!"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "Philosopher sleeping...\n",
        "Up and hungry..."
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "\n"
       ]
      }
     ],
     "prompt_number": 6
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "time.sleep(5)\n",
      "%notify Let's have a coffee"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 7
    }
   ],
   "metadata": {}
  }
 ]
}