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annotate browser_side/tools.py @ 321:bfbd9d6eb901

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browser_side: info dialog to let the user know that a refresh is needed after GUI parameters have been changed
author souliane <souliane@mailoo.org>
date Fri, 03 Jan 2014 22:43:44 +0100
parents 52b1afd7ac3f
children 6abd099c7007
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1 #!/usr/bin/python
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2 # -*- coding: utf-8 -*-
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3
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4 """
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5 Libervia: a Salut à Toi frontend
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9763dec220ed dates update
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6 Copyright (C) 2011, 2012, 2013 Jérôme Poisson <goffi@goffi.org>
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7
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8 This program is free software: you can redistribute it and/or modify
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9 it under the terms of the GNU Affero General Public License as published by
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10 the Free Software Foundation, either version 3 of the License, or
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11 (at your option) any later version.
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12
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13 This program is distributed in the hope that it will be useful,
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14 but WITHOUT ANY WARRANTY; without even the implied warranty of
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15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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16 GNU Affero General Public License for more details.
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17
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18 You should have received a copy of the GNU Affero General Public License
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19 along with this program. If not, see <http://www.gnu.org/licenses/>.
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20 """
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21
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22 from pyjamas.ui.DragWidget import DragWidget
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23 from pyjamas.ui.FileUpload import FileUpload
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24 from pyjamas import Window
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25 from nativedom import NativeDOM
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26 from sat_frontends.tools import xml
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27
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28 dom = NativeDOM()
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31 def html_sanitize(html):
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32 """Naive sanitization of HTML"""
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33 return html.replace('<', '&lt;').replace('>', '&gt;')
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35
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36 def inlineRoot(xhtml):
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37 """ make root element inline """
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38 doc = dom.parseString(xhtml)
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39 return xml.inlineRoot(doc)
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41
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42 def setPresenceStyle(item, state, base_style="contact"):
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43 """
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44 @item: any UI element
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45 @state: a value from ("", "chat", "away", "dnd", "xa")
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46 """
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47 if not hasattr(item, 'presence_style'):
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48 item.presence_style = None
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49 style = '%s-%s' % (base_style, state or 'connected')
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50 if style == item.presence_style:
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51 return
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52 if item.presence_style is not None:
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53 item.removeStyleName(item.presence_style)
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54 item.addStyleName(style)
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55 item.presence_style = style
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57
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58 class DragLabel(DragWidget):
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59
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60 def __init__(self, text, _type):
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61 DragWidget.__init__(self)
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62 self._text = text
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63 self._type = _type
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65 def onDragStart(self, event):
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66 dt = event.dataTransfer
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67 dt.setData('text/plain', "%s\n%s" % (self._text, self._type))
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68 dt.setDragImage(self.getElement(), 15, 15)
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71 class LiberviaDragWidget(DragLabel):
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72 """ A DragLabel which keep the widget being dragged as class value """
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73 current = None # widget currently dragged
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75 def __init__(self, text, _type, widget):
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76 DragLabel.__init__(self, text, _type)
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77 self.widget = widget
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78
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79 def onDragStart(self, event):
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80 LiberviaDragWidget.current = self.widget
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81 DragLabel.onDragStart(self, event)
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82
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83 def onDragEnd(self, event):
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84 LiberviaDragWidget.current = None
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86
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87 class FilterFileUpload(FileUpload):
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88
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89 def __init__(self, name, max_size, types=None):
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90 """
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91 @param name: the input element name
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92 @param max_size: maximum file size in MB
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93 @param types: allowed types as a list of couples (x, y, z):
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94 - x: MIME content type e.g. "audio/ogg"
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95 - y: file extension e.g. "*.ogg"
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96 - z: description for the user e.g. "Ogg Vorbis Audio"
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97 If types is None, all file format are accepted
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98 """
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99 FileUpload.__init__(self)
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100 self.setName(name)
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101 from pyjamas import DOM
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102 while DOM.getElementById(name):
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103 name = "%s_" % name
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104 self.setID(name)
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105 self._id = name
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106 self.max_size = max_size
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107 self.types = types
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108
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109 def getFileInfo(self):
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110 from __pyjamas__ import JS
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111 JS("var file = top.document.getElementById(this._id).files[0]; return [file.size, file.type]")
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112
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113 def check(self):
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114 if self.getFilename() == "":
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115 return False
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116 (size, filetype) = self.getFileInfo()
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117 if self.types and filetype not in [x for (x, y, z) in self.types]:
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118 types = ["- %s (%s)" % (z, y) for (x, y, z) in self.types]
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119 Window.alert('This file type is not accepted.\nAccepted file types are:\n\n%s' % "\n".join(types))
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120 return False
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121 if size > self.max_size * pow(2, 20):
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122 Window.alert('This file is too big!\nMaximum file size: %d MB.' % self.max_size)
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123 return False
0eba1c4f9c6f browser_side (plugins radiocol, xep-0054): check for file size or type before uploading
souliane <souliane@mailoo.org>
parents: 279
diff changeset
124 return True