##// END OF EJS Templates
fix minor bugs in export as (nbconvert) example
jdavidheiser -
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@@ -1,186 +1,188 b''
1 1 {
2 2 "metadata": {
3 3 "name": ""
4 4 },
5 5 "nbformat": 3,
6 6 "nbformat_minor": 0,
7 7 "worksheets": [
8 8 {
9 9 "cells": [
10 10 {
11 11 "cell_type": "code",
12 12 "collapsed": false,
13 13 "input": [
14 14 "# Widget related imports\n",
15 15 "from IPython.html import widgets\n",
16 16 "from IPython.display import display, clear_output, Javascript\n",
17 17 "from IPython.utils.traitlets import Unicode\n",
18 18 "\n",
19 19 "# nbconvert related imports\n",
20 20 "from IPython.nbconvert import get_export_names, export_by_name\n",
21 21 "from IPython.nbconvert.writers import FilesWriter\n",
22 22 "from IPython.nbformat import current"
23 "from IPython.nbconvert.utils.exceptions import ConversionException\n",
24
23 25 ],
24 26 "language": "python",
25 27 "metadata": {},
26 28 "outputs": [],
27 29 "prompt_number": 1
28 30 },
29 31 {
30 32 "cell_type": "markdown",
31 33 "metadata": {},
32 34 "source": [
33 35 "Create a text Widget without displaying it. The widget will be used to store the notebook's name which is otherwise only available in the front-end."
34 36 ]
35 37 },
36 38 {
37 39 "cell_type": "code",
38 40 "collapsed": false,
39 41 "input": [
40 42 "notebook_name = widgets.TextWidget()"
41 43 ],
42 44 "language": "python",
43 45 "metadata": {},
44 46 "outputs": [],
45 47 "prompt_number": 2
46 48 },
47 49 {
48 50 "cell_type": "markdown",
49 51 "metadata": {},
50 52 "source": [
51 53 "Get the current notebook's name by pushing JavaScript to the browser that sets the notebook name in a string widget."
52 54 ]
53 55 },
54 56 {
55 57 "cell_type": "code",
56 58 "collapsed": false,
57 59 "input": [
58 60 "js = \"\"\"var model = IPython.notebook.kernel.widget_manager.get_model('{model_id}');\n",
59 61 "model.set('value', IPython.notebook.notebook_name);\n",
60 62 "model.save();\"\"\".format(model_id=notebook_name.model_id)\n",
61 63 "display(Javascript(data=js))"
62 64 ],
63 65 "language": "python",
64 66 "metadata": {},
65 67 "outputs": [
66 68 {
67 69 "javascript": [
68 70 "var model = IPython.notebook.kernel.widget_manager.get_model('8c6583524eb3422c99491730a3e1ce6c');\n",
69 71 "model.set('value', IPython.notebook.notebook_name);\n",
70 72 "model.save();"
71 73 ],
72 74 "metadata": {},
73 75 "output_type": "display_data",
74 76 "text": [
75 77 "<IPython.core.display.Javascript at 0x164ea50>"
76 78 ]
77 79 }
78 80 ],
79 81 "prompt_number": 3
80 82 },
81 83 {
82 84 "cell_type": "code",
83 85 "collapsed": false,
84 86 "input": [
85 87 "filename = notebook_name.value\n",
86 88 "filename"
87 89 ],
88 90 "language": "python",
89 91 "metadata": {},
90 92 "outputs": [
91 93 {
92 94 "metadata": {},
93 95 "output_type": "pyout",
94 96 "prompt_number": 4,
95 97 "text": [
96 98 "u'Export As (nbconvert).ipynb'"
97 99 ]
98 100 }
99 101 ],
100 102 "prompt_number": 4
101 103 },
102 104 {
103 105 "cell_type": "markdown",
104 106 "metadata": {},
105 107 "source": [
106 108 "Create the widget that will allow the user to Export the current notebook."
107 109 ]
108 110 },
109 111 {
110 112 "cell_type": "code",
111 113 "collapsed": false,
112 114 "input": [
113 115 "exporter_names = widgets.DropdownWidget(values=get_export_names(), value='html')\n",
114 116 "export_button = widgets.ButtonWidget(description=\"Export\")\n",
115 117 "download_link = widgets.HTMLWidget(visible=False)"
116 118 ],
117 119 "language": "python",
118 120 "metadata": {},
119 121 "outputs": [],
120 122 "prompt_number": 5
121 123 },
122 124 {
123 125 "cell_type": "markdown",
124 126 "metadata": {},
125 127 "source": [
126 128 "Export the notebook when the export button is clicked."
127 129 ]
128 130 },
129 131 {
130 132 "cell_type": "code",
131 133 "collapsed": false,
132 134 "input": [
133 135 "file_writer = FilesWriter()\n",
134 136 "\n",
135 137 "def export(name, nb):\n",
136 138 " \n",
137 139 " # Get a unique key for the notebook and set it in the resources object.\n",
138 140 " notebook_name = name[:name.rfind('.')]\n",
139 141 " resources = {}\n",
140 142 " resources['unique_key'] = notebook_name\n",
141 143 " resources['output_files_dir'] = '%s_files' % notebook_name\n",
142 144 "\n",
143 145 " # Try to export\n",
144 146 " try:\n",
145 147 " output, resources = export_by_name(exporter_names.value, nb)\n",
146 148 " except ConversionException as e:\n",
147 149 " download_link.value = \"<br>Could not export notebook!\"\n",
148 150 " else:\n",
149 151 " write_results = file_writer.write(output, resources, notebook_name=notebook_name)\n",
150 152 " \n",
151 153 " download_link.value = \"<br>Results: <a href='files/{filename}'><i>\\\"{filename}\\\"</i></a>\".format(filename=write_results)\n",
152 154 " download_link.visible = True\n",
153 155 " \n",
154 "def handle_export():\n",
156 "def handle_export(widget):\n",
155 157 " with open(filename, 'r') as f:\n",
156 158 " export(filename, current.read(f, 'json'))\n",
157 159 "export_button.on_click(handle_export)"
158 160 ],
159 161 "language": "python",
160 162 "metadata": {},
161 163 "outputs": [],
162 164 "prompt_number": 6
163 165 },
164 166 {
165 167 "cell_type": "markdown",
166 168 "metadata": {},
167 169 "source": [
168 170 "Display the controls."
169 171 ]
170 172 },
171 173 {
172 174 "cell_type": "code",
173 175 "collapsed": false,
174 176 "input": [
175 177 "display(exporter_names, export_button, download_link)"
176 178 ],
177 179 "language": "python",
178 180 "metadata": {},
179 181 "outputs": [],
180 182 "prompt_number": 7
181 183 }
182 184 ],
183 185 "metadata": {}
184 186 }
185 187 ]
186 } No newline at end of file
188 }
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