--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/pyams_content/features/thesaurus/__init__.py	Tue Nov 27 17:11:57 2018 +0100
@@ -0,0 +1,53 @@
+#
+# Copyright (c) 2008-2018 Thierry Florac <tflorac AT ulthar.net>
+# All Rights Reserved.
+#
+# This software is subject to the provisions of the Zope Public License,
+# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
+# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
+# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
+# FOR A PARTICULAR PURPOSE.
+#
+
+__docformat__ = 'restructuredtext'
+
+from persistent import Persistent
+from zope.container.contained import Contained
+from zope.interface import implementer
+from zope.schema.fieldproperty import FieldProperty
+
+from pyams_content.features.thesaurus.interfaces import IThesaurusTermHTMLInfo, IThesaurusTermHTMLTarget, \
+    THESAURUS_TERM_HTML_INFO_KEY
+from pyams_thesaurus.interfaces.extension import IThesaurusTermExtension
+from pyams_utils.adapter import adapter_config, get_annotation_adapter
+from pyams_utils.factory import factory_config
+from pyams_utils.registry import utility_config
+
+from pyams_content import _
+
+
+@factory_config(provided=IThesaurusTermHTMLInfo)
+@implementer(IThesaurusTermHTMLInfo)
+class ThesaurusTermHTMLInfo(Persistent, Contained):
+    """Thesaurus term HTML description"""
+
+    description = FieldProperty(IThesaurusTermHTMLInfo['description'])
+
+
+@adapter_config(context=IThesaurusTermHTMLTarget, provides=IThesaurusTermHTMLInfo)
+def thesaurus_term_html_description_factory(context):
+    """Thesaurus term HTML description factory"""
+    return get_annotation_adapter(context, THESAURUS_TERM_HTML_INFO_KEY, IThesaurusTermHTMLInfo)
+
+
+@utility_config(name='html', provides=IThesaurusTermExtension)
+class HTMLThesaurusExtension(object):
+    """HTML description thesaurus extension"""
+
+    label = _("Rich text description")
+
+    target_interface = IThesaurusTermHTMLTarget
+    target_view = 'html-description.html'
+
+    icon = '<i class="fa fa-fw fa-font"></i>'