Mercurial > libervia-web

annotate browser_side/tools.py @ 340:ce5b33f499c5

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dates update
author Goffi <goffi@goffi.org>
date Tue, 04 Feb 2014 17:52:12 +0100
parents 2067d6241927
children f1ba38043d78
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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 # Libervia: a Salut à Toi frontend
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5 # Copyright (C) 2011, 2012, 2013, 2014 Jérôme Poisson <goffi@goffi.org>
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6
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7 # This program is free software: you can redistribute it and/or modify
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8 # it under the terms of the GNU Affero General Public License as published by
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9 # the Free Software Foundation, either version 3 of the License, or
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10 # (at your option) any later version.
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12 # This program is distributed in the hope that it will be useful,
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13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 # GNU Affero General Public License for more details.
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17 # You should have received a copy of the GNU Affero General Public License
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18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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20 from pyjamas.ui.DragWidget import DragWidget
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21 from pyjamas.ui.FileUpload import FileUpload
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22 from pyjamas import Window
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23 from nativedom import NativeDOM
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24 from sat_frontends.tools import xmltools
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25
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26 dom = NativeDOM()
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29 def html_sanitize(html):
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30 """Naive sanitization of HTML"""
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31 return html.replace('<', '&lt;').replace('>', '&gt;')
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34 def inlineRoot(xhtml):
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35 """ make root element inline """
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36 doc = dom.parseString(xhtml)
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37 return xmltools.inlineRoot(doc)
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39
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40 def setPresenceStyle(item, state, base_style="contact"):
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41 """
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42 @item: any UI element
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43 @state: a value from ("", "chat", "away", "dnd", "xa")
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44 """
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45 if not hasattr(item, 'presence_style'):
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46 item.presence_style = None
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47 style = '%s-%s' % (base_style, state or 'connected')
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48 if style == item.presence_style:
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49 return
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50 if item.presence_style is not None:
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51 item.removeStyleName(item.presence_style)
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52 item.addStyleName(style)
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53 item.presence_style = style
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56 class DragLabel(DragWidget):
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58 def __init__(self, text, _type):
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59 DragWidget.__init__(self)
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60 self._text = text
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61 self._type = _type
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63 def onDragStart(self, event):
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64 dt = event.dataTransfer
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65 dt.setData('text/plain', "%s\n%s" % (self._text, self._type))
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66 dt.setDragImage(self.getElement(), 15, 15)
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69 class LiberviaDragWidget(DragLabel):
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70 """ A DragLabel which keep the widget being dragged as class value """
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71 current = None # widget currently dragged
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73 def __init__(self, text, _type, widget):
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74 DragLabel.__init__(self, text, _type)
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75 self.widget = widget
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77 def onDragStart(self, event):
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78 LiberviaDragWidget.current = self.widget
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79 DragLabel.onDragStart(self, event)
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80
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81 def onDragEnd(self, event):
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82 LiberviaDragWidget.current = None
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84
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85 class FilterFileUpload(FileUpload):
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86
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87 def __init__(self, name, max_size, types=None):
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88 """
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89 @param name: the input element name
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90 @param max_size: maximum file size in MB
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91 @param types: allowed types as a list of couples (x, y, z):
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92 - x: MIME content type e.g. "audio/ogg"
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93 - y: file extension e.g. "*.ogg"
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94 - z: description for the user e.g. "Ogg Vorbis Audio"
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95 If types is None, all file format are accepted
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96 """
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97 FileUpload.__init__(self)
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98 self.setName(name)
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99 from pyjamas import DOM
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100 while DOM.getElementById(name):
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101 name = "%s_" % name
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102 self.setID(name)
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103 self._id = name
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104 self.max_size = max_size
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105 self.types = types
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106
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107 def getFileInfo(self):
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108 from __pyjamas__ import JS
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109 JS("var file = top.document.getElementById(this._id).files[0]; return [file.size, file.type]")
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110
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111 def check(self):
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112 if self.getFilename() == "":
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113 return False
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114 (size, filetype) = self.getFileInfo()
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115 if self.types and filetype not in [x for (x, y, z) in self.types]:
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116 types = ["- %s (%s)" % (z, y) for (x, y, z) in self.types]
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117 Window.alert('This file type is not accepted.\nAccepted file types are:\n\n%s' % "\n".join(types))
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118 return False
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119 if size > self.max_size * pow(2, 20):
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120 Window.alert('This file is too big!\nMaximum file size: %d MB.' % self.max_size)
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121 return False
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122 return True