--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/sat_browser/html_tools.py	Sat Aug 25 17:59:48 2018 +0200
@@ -0,0 +1,81 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+
+# Libervia: a Salut à Toi frontend
+# Copyright (C) 2011-2018 Jérôme Poisson <goffi@goffi.org>
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+from sat_frontends.tools import xmltools
+
+import nativedom
+from __pyjamas__ import JS
+
+dom = nativedom.NativeDOM()
+
+
+def html_sanitize(html):
+    """Naive sanitization of HTML"""
+    return html.replace('<', '&lt;').replace('>', '&gt;')
+
+
+def html_strip(html):
+    """Strip leading/trailing white spaces, HTML line breaks and &nbsp; sequences."""
+    JS("""return html.replace(/(^(<br\/?>|&nbsp;|\s)+)|((<br\/?>|&nbsp;|\s)+$)/g, "");""")
+
+def inlineRoot(xhtml):
+    """ make root element inline """
+    doc = dom.parseString(xhtml)
+    return xmltools.inlineRoot(doc)
+
+
+def convertNewLinesToXHTML(text):
+    """Replace all the \n with <br/>"""
+    return text.replace('\n', '<br/>')
+
+
+def XHTML2Text(xhtml):
+    """Helper method to apply both html_sanitize and convertNewLinesToXHTML"""
+    return convertNewLinesToXHTML(html_sanitize(xhtml))
+
+
+def buildPresenceStyle(presence, base_style=None):
+    """Return the CSS classname to be used for displaying the given presence information.
+
+    @param presence (unicode): presence is a value in ('', 'chat', 'away', 'dnd', 'xa')
+    @param base_style (unicode): base classname
+    @return: unicode
+    """
+    if not base_style:
+        base_style = "contactLabel"
+    return '%s-%s' % (base_style, presence or 'connected')
+
+
+def setPresenceStyle(widget, presence, base_style=None):
+    """
+    Set the CSS style of a contact's element according to its presence.
+
+    @param widget (Widget): the UI element of the contact
+    @param presence (unicode): a value in ("", "chat", "away", "dnd", "xa").
+    @param base_style (unicode): the base name of the style to apply
+    """
+    if not hasattr(widget, 'presence_style'):
+        widget.presence_style = None
+    style = buildPresenceStyle(presence, base_style)
+    if style == widget.presence_style:
+        return
+    if widget.presence_style is not None:
+        widget.removeStyleName(widget.presence_style)
+    widget.addStyleName(style)
+    widget.presence_style = style