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@@ -1,51 +1,51 b'' | |||||
1 | """ContainerWidget class. |
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1 | """ContainerWidget class. | |
2 |
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2 | |||
3 | Represents a container that can be used to group other widgets. |
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3 | Represents a container that can be used to group other widgets. | |
4 | """ |
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4 | """ | |
5 | #----------------------------------------------------------------------------- |
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5 | #----------------------------------------------------------------------------- | |
6 | # Copyright (c) 2013, the IPython Development Team. |
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6 | # Copyright (c) 2013, the IPython Development Team. | |
7 | # |
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7 | # | |
8 | # Distributed under the terms of the Modified BSD License. |
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8 | # Distributed under the terms of the Modified BSD License. | |
9 | # |
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9 | # | |
10 | # The full license is in the file COPYING.txt, distributed with this software. |
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10 | # The full license is in the file COPYING.txt, distributed with this software. | |
11 | #----------------------------------------------------------------------------- |
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11 | #----------------------------------------------------------------------------- | |
12 |
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12 | |||
13 | #----------------------------------------------------------------------------- |
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13 | #----------------------------------------------------------------------------- | |
14 | # Imports |
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14 | # Imports | |
15 | #----------------------------------------------------------------------------- |
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15 | #----------------------------------------------------------------------------- | |
16 | from .widget import DOMWidget |
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16 | from .widget import DOMWidget | |
17 |
from IPython.utils.traitlets import Unicode, |
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17 | from IPython.utils.traitlets import Unicode, Tuple, Instance | |
18 |
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18 | |||
19 | #----------------------------------------------------------------------------- |
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19 | #----------------------------------------------------------------------------- | |
20 | # Classes |
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20 | # Classes | |
21 | #----------------------------------------------------------------------------- |
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21 | #----------------------------------------------------------------------------- | |
22 | class ContainerWidget(DOMWidget): |
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22 | class ContainerWidget(DOMWidget): | |
23 | _view_name = Unicode('ContainerView', sync=True) |
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23 | _view_name = Unicode('ContainerView', sync=True) | |
24 |
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24 | |||
25 | # Keys, all private and managed by helper methods. Flexible box model |
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25 | # Keys, all private and managed by helper methods. Flexible box model | |
26 | # classes... |
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26 | # classes... | |
27 |
children = |
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27 | children = Tuple(Instance(DOMWidget)) | |
28 |
_children = |
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28 | _children = Tuple(Instance(DOMWidget), sync=True) | |
29 |
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29 | |||
30 | def _children_changed(self, name, old, new): |
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30 | def _children_changed(self, name, old, new): | |
31 | """Validate children list. |
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31 | """Validate children list. | |
32 |
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32 | |||
33 | Makes sure only one instance of any given model can exist in the |
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33 | Makes sure only one instance of any given model can exist in the | |
34 | children list. |
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34 | children list. | |
35 | An excellent post on uniqifiers is available at |
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35 | An excellent post on uniqifiers is available at | |
36 | http://www.peterbe.com/plog/uniqifiers-benchmark |
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36 | http://www.peterbe.com/plog/uniqifiers-benchmark | |
37 | which provides the inspiration for using this implementation. Below |
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37 | which provides the inspiration for using this implementation. Below | |
38 | I've implemented the `f5` algorithm using Python comprehensions.""" |
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38 | I've implemented the `f5` algorithm using Python comprehensions.""" | |
39 | if new is not None and isinstance(new, list): |
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39 | if new is not None and isinstance(new, list): | |
40 | seen = {} |
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40 | seen = {} | |
41 | def add_item(i): |
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41 | def add_item(i): | |
42 | seen[i.model_id] = True |
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42 | seen[i.model_id] = True | |
43 | return i |
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43 | return i | |
44 | self._children = [add_item(i) for i in new if not i.model_id in seen] |
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44 | self._children = [add_item(i) for i in new if not i.model_id in seen] | |
45 |
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45 | |||
46 |
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46 | |||
47 | class PopupWidget(ContainerWidget): |
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47 | class PopupWidget(ContainerWidget): | |
48 | _view_name = Unicode('PopupView', sync=True) |
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48 | _view_name = Unicode('PopupView', sync=True) | |
49 |
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49 | |||
50 | description = Unicode(sync=True) |
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50 | description = Unicode(sync=True) | |
51 | button_text = Unicode(sync=True) |
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51 | button_text = Unicode(sync=True) |
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