--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/pyams_workflow/zmi/viewlet/versions.py	Wed Jun 17 10:02:06 2015 +0200
@@ -0,0 +1,53 @@
+#
+# Copyright (c) 2008-2015 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'
+
+
+# import standard library
+
+# import interfaces
+from pyams_skin.interfaces.viewlet import IToolbarViewletManager
+from pyams_skin.layer import IPyAMSLayer
+from pyams_workflow.interfaces import IWorkflowVersion, IWorkflowState, IWorkflowVersions, IWorkflowManagedContent, \
+    IWorkflow
+
+# import packages
+from pyams_template.template import template_config
+from pyams_utils.registry import get_utility
+from pyams_utils.traversing import get_parent
+from pyams_viewlet.viewlet import viewlet_config, Viewlet
+from pyramid.decorator import reify
+
+
+@viewlet_config(name='pyams_workflow.versions', context=IWorkflowVersion, layer=IPyAMSLayer,
+                manager=IToolbarViewletManager, weight=1)
+@template_config(template='templates/versions.pt', layer=IPyAMSLayer)
+class WorkflowVersionMenuProvider(Viewlet):
+    """Workflow versions menu content provider"""
+
+    @reify
+    def workflow(self):
+        content = get_parent(self.context, IWorkflowManagedContent)
+        return get_utility(IWorkflow, name=content.workflow_name)
+
+    def get_workflow_state(self, context=None):
+        if context is None:
+            context = self.context
+        state = IWorkflowState(context)
+        return {'version': state.version_id,
+                'state': state.state,
+                'state_label': self.request.localizer.translate(self.workflow.get_state_label(state.state))}
+
+    @property
+    def workflow_versions(self):
+        return IWorkflowVersions(self.context).get_last_versions(count=0)