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comparison browser_side/file_tools.py @ 370:30d03d9f07e4

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browser_side: refactorization of the file tools.py: - tools.py renamed to html_tools.py - method setPresenceStyle moved to contact.py - classes DragLabel and LiberviaDragWidget moved to base_widget.py - class FilterFileUpload moved to file_tools.py
author souliane <souliane@mailoo.org>
date Sun, 23 Feb 2014 17:01:03 +0100
parents browser_side/tools.py@187126b63170
children 933bce4cb816
comparison
equal deleted inserted replaced
369:678d1739bbf2 370:30d03d9f07e4
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 pyjamas.ui.FileUpload import FileUpload
21 from pyjamas import Window
22 from pyjamas import DOM
23
24
25 class FilterFileUpload(FileUpload):
26
27 def __init__(self, name, max_size, types=None):
28 """
29 @param name: the input element name
30 @param max_size: maximum file size in MB
31 @param types: allowed types as a list of couples (x, y, z):
32 - x: MIME content type e.g. "audio/ogg"
33 - y: file extension e.g. "*.ogg"
34 - z: description for the user e.g. "Ogg Vorbis Audio"
35 If types is None, all file format are accepted
36 """
37 FileUpload.__init__(self)
38 self.setName(name)
39 while DOM.getElementById(name):
40 name = "%s_" % name
41 self.setID(name)
42 self._id = name
43 self.max_size = max_size
44 self.types = types
45
46 def getFileInfo(self):
47 from __pyjamas__ import JS
48 JS("var file = top.document.getElementById(this._id).files[0]; return [file.size, file.type]")
49
50 def check(self):
51 if self.getFilename() == "":
52 return False
53 (size, filetype) = self.getFileInfo()
54 if self.types and filetype not in [x for (x, y, z) in self.types]:
55 types = ["- %s (%s)" % (z, y) for (x, y, z) in self.types]
56 Window.alert('This file type is not accepted.\nAccepted file types are:\n\n%s' % "\n".join(types))
57 return False
58 if size > self.max_size * pow(2, 20):
59 Window.alert('This file is too big!\nMaximum file size: %d MB.' % self.max_size)
60 return False
61 return True