1 files changed, 94 insertions, 0 deletions
diff --git a/slixmpp/plugins/xep_0085/stanza.py b/slixmpp/plugins/xep_0085/stanza.py
new file mode 100644
index 00000000..d1a5b151
--- /dev/null
+++ b/slixmpp/plugins/xep_0085/stanza.py
@@ -0,0 +1,94 @@
+"""
+    Slixmpp: The Slick XMPP Library
+    Copyright (C) 2011 Nathanael C. Fritz, Lance J.T. Stout
+    This file is part of Slixmpp.
+
+    See the file LICENSE for copying permissio
+"""
+
+import slixmpp
+from slixmpp.xmlstream import ElementBase, ET
+
+
+class ChatState(ElementBase):
+
+    """
+    Example chat state stanzas:
+        <message>
+          <active xmlns="http://jabber.org/protocol/chatstates" />
+        </message>
+
+        <message>
+          <paused xmlns="http://jabber.org/protocol/chatstates" />
+        </message>
+
+    Stanza Interfaces:
+        chat_state
+
+    Attributes:
+        states
+
+    Methods:
+        get_chat_state
+        set_chat_state
+        del_chat_state
+    """
+
+    name = ''
+    namespace = 'http://jabber.org/protocol/chatstates'
+    plugin_attrib = 'chat_state'
+    interfaces = set(('chat_state',))
+    sub_interfaces = interfaces
+    is_extension = True
+
+    states = set(('active', 'composing', 'gone', 'inactive', 'paused'))
+
+    def setup(self, xml=None):
+        self.xml = ET.Element('')
+        return True
+
+    def get_chat_state(self):
+        parent = self.parent()
+        for state in self.states:
+            state_xml = parent.find('{%s}%s' % (self.namespace, state))
+            if state_xml is not None:
+                self.xml = state_xml
+                return state
+        return ''
+
+    def set_chat_state(self, state):
+        self.del_chat_state()
+        parent = self.parent()
+        if state in self.states:
+            self.xml = ET.Element('{%s}%s' % (self.namespace, state))
+            parent.append(self.xml)
+        elif state not in [None, '']:
+            raise ValueError('Invalid chat state')
+
+    def del_chat_state(self):
+        parent = self.parent()
+        for state in self.states:
+            state_xml = parent.find('{%s}%s' % (self.namespace, state))
+            if state_xml is not None:
+                self.xml = ET.Element('')
+                parent.xml.remove(state_xml)
+
+
+class Active(ChatState):
+    name = 'active'
+
+
+class Composing(ChatState):
+    name = 'composing'
+
+
+class Gone(ChatState):
+    name = 'gone'
+
+
+class Inactive(ChatState):
+    name = 'inactive'
+
+
+class Paused(ChatState):
+    name = 'paused'