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annotate browser_side/tools.py @ 217:f7ec248192de

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browser_side: display clickable URLs in chat text
author souliane <souliane@mailoo.org>
date Sun, 08 Sep 2013 12:34:00 +0200
parents c2639c9f86ea
children d7c41c84d062
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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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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 import re
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25 def html_sanitize(html):
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26 """Naive sanitization of HTML"""
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27 return html.replace('<','&lt;').replace('>','&gt;')
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30 def addURLToText(string):
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31 """Check a text for what looks like an URL and make it clickable. Regexp
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32 from http://daringfireball.net/2010/07/improved_regex_for_matching_urls"""
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33
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34 def repl(match):
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35 url = match.group(0)
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36 if not re.match(r"""[a-z]{3,}://|mailto:|xmpp:""", url):
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37 url = "http://" + url
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38 return '<a href="%s" target="_blank" class="url">%s</a>' % (url, match.group(0))
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39 pattern = r"""(?i)\b((?:[a-z]{3,}://|(www|ftp)\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4}/|mailto:|xmpp:)(?:[^\s()<>]+|\(([^\s()<>]+|(\([^\s()<>]+\)))*\))+(?:\(([^\s()<>]+|(\([^\s()<>]+\)))*\)|[^\s`!()\[\]{};:'".,<>?]))"""
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40 return re.sub(pattern, repl, string)
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43 class DragLabel(DragWidget):
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45 def __init__(self, text, _type):
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46 DragWidget.__init__(self)
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47 self._text = text
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48 self._type = _type
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50 def onDragStart(self, event):
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51 dt = event.dataTransfer
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52 dt.setData('text/plain', "%s\n%s" % (self._text, self._type))
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53 dt.setDragImage(self.getElement(), 15, 15)
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54
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55 class LiberviaDragWidget(DragLabel):
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56 """ A DragLabel which keep the widget being dragged as class value """
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57 current = None # widget currently dragged
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59 def __init__(self, text, _type, widget):
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60 DragLabel.__init__(self, text, _type)
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61 self.widget = widget
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63 def onDragStart(self, event):
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64 LiberviaDragWidget.current = self.widget
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65 DragLabel.onDragStart(self, event)
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67 def onDragEnd(self, event):
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68 LiberviaDragWidget.current = None