##// END OF EJS Templates
improved behavior of FileLinks.__repr__ to be more like the behvior of _repr_html_
Greg Caporaso -
Show More
@@ -1,151 +1,165 b''
1 1 """Various display related classes.
2 2
3 3 Authors : MinRK, gregcaporaso
4 4 """
5 5
6 6 from os import walk
7 from os.path import exists, isfile, splitext, abspath
7 from os.path import exists, isfile, splitext, abspath, join
8 8
9 9
10 10 class YouTubeVideo(object):
11 11 """Class for embedding a YouTube Video in an IPython session, based on its video id.
12 12
13 13 e.g. to embed the video on this page:
14 14
15 15 http://www.youtube.com/watch?v=foo
16 16
17 17 you would do:
18 18
19 19 vid = YouTubeVideo("foo")
20 20 display(vid)
21 21 """
22 22
23 23 def __init__(self, id, width=400, height=300):
24 24 self.id = id
25 25 self.width = width
26 26 self.height = height
27 27
28 28 def _repr_html_(self):
29 29 """return YouTube embed iframe for this video id"""
30 30 return """
31 31 <iframe
32 32 width="%i"
33 33 height="%i"
34 34 src="http://www.youtube.com/embed/%s"
35 35 frameborder="0"
36 36 allowfullscreen
37 37 ></iframe>
38 38 """%(self.width, self.height, self.id)
39 39
40 40 class FileLink(object):
41 41 """Class for embedding a local file link in an IPython session, based on path
42 42
43 43 e.g. to embed a link that was generated in the IPython notebook as my/data.txt
44 44
45 45 you would do:
46 46
47 47 local_file = FileLink("my/data.txt")
48 48 display(local_file)
49 49
50 50 or in the HTML notebook, just
51 51
52 52 FileLink("my/data.txt")
53 53 """
54 54
55 55 html_link_str = "<a href='%s' target='_blank'>%s</a>"
56 56
57 57 def __init__(self,
58 58 path,
59 59 url_prefix='files',
60 60 result_html_prefix='',
61 61 result_html_suffix='<br>'):
62 62 """
63 63 path : path to the file or directory that should be formatted
64 64 directory_prefix : prefix to be prepended to all files to form a
65 65 working link [default: 'files']
66 66 result_html_prefix : text to append to beginning to link
67 67 [default: none]
68 68 result_html_suffix : text to append at the end of link
69 69 [default: '<br>']
70 70 """
71 71 self.path = path
72 72 self.url_prefix = url_prefix
73 73 self.result_html_prefix = result_html_prefix
74 74 self.result_html_suffix = result_html_suffix
75 75
76 76 def _format_path(self):
77 77 fp = '/'.join([self.url_prefix,self.path])
78 78 return ''.join([self.result_html_prefix,
79 79 self.html_link_str % (fp, self.path),
80 80 self.result_html_suffix])
81 81
82 82 def _repr_html_(self):
83 83 """return html link to file
84 84 """
85 85 if not exists(self.path):
86 86 return ("Path (<tt>%s</tt>) doesn't exist. "
87 87 "It may still be in the process of "
88 88 "being generated, or you may have the "
89 89 "incorrect path." % self.path)
90 90
91 91 return self._format_path()
92 92
93 93 def __repr__(self):
94 """return path to file
94 """return absolute path to file
95 95 """
96 96 return abspath(self.path)
97 97
98 98 # Create an alias for formatting a single directory name as a link.
99 99 # Right now this is the same as a formatting for a single file, but
100 100 # we'll encourage users to reference these with a different class in
101 101 # case we want to change this in the future.
102 102 DirectoryLink = FileLink
103 103
104 104 class FileLinks(FileLink):
105 105 """Class for embedding local file links in an IPython session, based on path
106 106
107 107 e.g. to embed links to files that were generated in the IPython notebook under my/data
108 108
109 109 you would do:
110 110
111 111 local_files = FileLinks("my/data")
112 112 display(local_files)
113 113
114 114 or in the HTML notebook, just
115 115
116 116 FileLinks("my/data")
117 117
118 118 """
119 119 def __init__(self,
120 120 path,
121 121 url_prefix='files',
122 122 included_suffixes=None,
123 123 result_html_prefix='',
124 124 result_html_suffix='<br>'):
125 125 """
126 126 included_suffixes : list of filename suffixes to include when
127 127 formatting output [default: include all files]
128 128
129 129 See the FileLink (baseclass of LocalDirectory) docstring for
130 130 information on additional parameters.
131 131 """
132 132 self.included_suffixes = included_suffixes
133 133 FileLink.__init__(self,
134 134 path,
135 135 url_prefix,
136 136 result_html_prefix,
137 137 result_html_suffix)
138 138
139 139 def _format_path(self):
140 140 result_entries = []
141 141 for root, dirs, files in walk(self.path):
142 142 for fn in files:
143 143 fp = '/'.join([self.url_prefix,root,fn])
144 144 # if all files are being included, or fp has a suffix
145 145 # that is in included_suffix, create a link to fp
146 146 if self.included_suffixes == None or \
147 147 splitext(fn)[1] in self.included_suffixes:
148 148 result_entries.append(''.join([self.result_html_prefix,
149 149 self.html_link_str % (fp,fn),
150 150 self.result_html_suffix]))
151 151 return '\n'.join(result_entries)
152
153 def __repr__(self):
154 """return newline-separated absolute paths
155 """
156 result_entries = []
157 for root, dirs, files in walk(self.path):
158 for fn in files:
159 fp = abspath(join(root,fn))
160 # if all files are being included, or fp has a suffix
161 # that is in included_suffix, create a link to fp
162 if self.included_suffixes == None or \
163 splitext(fn)[1] in self.included_suffixes:
164 result_entries.append(fp)
165 return '\n'.join(result_entries) No newline at end of file
General Comments 0
You need to be logged in to leave comments. Login now