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comparison src/browser/sat_browser/file_tools.py @ 467:97c72fe4a5f2

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browser_side: import fixes: - moved browser modules in a sat_browser packages, to avoid import conflicts with std lib (e.g. logging), and let pyjsbuild work normaly - refactored bad import practices: classes are most of time not imported directly, module is imported instead.
author Goffi <goffi@goffi.org>
date Mon, 09 Jun 2014 22:15:26 +0200
parents src/browser/file_tools.py@981ed669d3b3
children bbdc5357dc00
comparison
equal deleted inserted replaced
466:01880aa8ea2d 467:97c72fe4a5f2
1 #!/usr/bin/python
2 # -*- coding: utf-8 -*-
3
4 # Libervia: a Salut à Toi frontend
5 # Copyright (C) 2011, 2012, 2013, 2014 Jérôme Poisson <goffi@goffi.org>
6
7 # This program is free software: you can redistribute it and/or modify
8 # it under the terms of the GNU Affero General Public License as published by
9 # the Free Software Foundation, either version 3 of the License, or
10 # (at your option) any later version.
11
12 # This program is distributed in the hope that it will be useful,
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 # GNU Affero General Public License for more details.
16
17 # You should have received a copy of the GNU Affero General Public License
18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
19
20 from sat.core.log import getLogger
21 log = getLogger(__name__)
22 from pyjamas.ui.FileUpload import FileUpload
23 from pyjamas.ui.FormPanel import FormPanel
24 from pyjamas import Window
25 from pyjamas import DOM
26 from pyjamas.ui.VerticalPanel import VerticalPanel
27 from pyjamas.ui.HTML import HTML
28 from pyjamas.ui.HorizontalPanel import HorizontalPanel
29 from pyjamas.ui.Button import Button
30 from pyjamas.ui.Label import Label
31
32
33 class FilterFileUpload(FileUpload):
34
35 def __init__(self, name, max_size, types=None):
36 """
37 @param name: the input element name and id
38 @param max_size: maximum file size in MB
39 @param types: allowed types as a list of couples (x, y, z):
40 - x: MIME content type e.g. "audio/ogg"
41 - y: file extension e.g. "*.ogg"
42 - z: description for the user e.g. "Ogg Vorbis Audio"
43 If types is None, all file format are accepted
44 """
45 FileUpload.__init__(self)
46 self.setName(name)
47 while DOM.getElementById(name):
48 name = "%s_" % name
49 self.setID(name)
50 self._id = name
51 self.max_size = max_size
52 self.types = types
53
54 def getFileInfo(self):
55 from __pyjamas__ import JS
56 JS("var file = top.document.getElementById(this._id).files[0]; return [file.size, file.type]")
57
58 def check(self):
59 if self.getFilename() == "":
60 return False
61 (size, filetype) = self.getFileInfo()
62 if self.types and filetype not in [x for (x, y, z) in self.types]:
63 types = []
64 for type_ in ["- %s (%s)" % (z, y) for (x, y, z) in self.types]:
65 if type_ not in types:
66 types.append(type_)
67 Window.alert('This file type is not accepted.\nAccepted file types are:\n\n%s' % "\n".join(types))
68 return False
69 if size > self.max_size * pow(2, 20):
70 Window.alert('This file is too big!\nMaximum file size: %d MB.' % self.max_size)
71 return False
72 return True
73
74
75 class FileUploadPanel(FormPanel):
76
77 def __init__(self, action_url, input_id, max_size, texts=None, close_cb=None):
78 """Build a form panel to upload a file.
79 @param action_url: the form action URL
80 @param input_id: the input element name and id
81 @param max_size: maximum file size in MB
82 @param texts: a dict to ovewrite the default textual values
83 @param close_cb: the close button callback method
84 """
85 FormPanel.__init__(self)
86 self.texts = {'ok_button': 'Upload file',
87 'cancel_button': 'Cancel',
88 'body': 'Please select a file.',
89 'submitting': '<strong>Submitting, please wait...</strong>',
90 'errback': "Your file has been rejected...",
91 'body_errback': 'Please select another file.',
92 'callback': "Your file has been accepted!"}
93 if isinstance(texts, dict):
94 self.texts.update(texts)
95 self.close_cb = close_cb
96 self.setEncoding(FormPanel.ENCODING_MULTIPART)
97 self.setMethod(FormPanel.METHOD_POST)
98 self.setAction(action_url)
99 self.vPanel = VerticalPanel()
100 self.message = HTML(self.texts['body'])
101 self.vPanel.add(self.message)
102
103 hPanel = HorizontalPanel()
104 hPanel.setSpacing(5)
105 hPanel.setStyleName('marginAuto')
106 self.file_upload = FilterFileUpload(input_id, max_size)
107 self.vPanel.add(self.file_upload)
108
109 self.upload_btn = Button(self.texts['ok_button'], getattr(self, "onSubmitBtnClick"))
110 hPanel.add(self.upload_btn)
111 hPanel.add(Button(self.texts['cancel_button'], getattr(self, "onCloseBtnClick")))
112
113 self.status = Label()
114 hPanel.add(self.status)
115
116 self.vPanel.add(hPanel)
117
118 self.add(self.vPanel)
119 self.addFormHandler(self)
120
121 def setCloseCb(self, close_cb):
122 self.close_cb = close_cb
123
124 def onCloseBtnClick(self):
125 if self.close_cb:
126 self.close_cb()
127 else:
128 log.warning("no close method defined")
129
130 def onSubmitBtnClick(self):
131 if not self.file_upload.check():
132 return
133 self.message.setHTML(self.texts['submitting'])
134 self.upload_btn.setEnabled(False)
135 self.submit()
136
137 def onSubmit(self, event):
138 pass
139
140 def onSubmitComplete(self, event):
141 result = event.getResults()
142 if result != "OK":
143 Window.alert(self.texts['errback'])
144 self.message.setHTML(self.texts['body_errback'])
145 self.upload_btn.setEnabled(True)
146 else:
147 Window.alert(self.texts['callback'])
148 self.close_cb()