Merge branch 'sync-fixes' into 'master'

Sync fixes

See merge request poezio/slixmpp!37

slixmpp/xmlstream/xmlstream.py

@@ -380,6 +380,7 @@ class XMLStream(asyncio.BaseProtocol):
             "ssl_object",
             default=self.transport.get_extra_info("socket")
         )
+        self._current_connection_attempt = None
         self.init_parser()
         self.send_raw(self.stream_header)
         self.dns_answers = None
@@ -438,6 +439,9 @@ class XMLStream(asyncio.BaseProtocol):
             self.send(error)
             self.disconnect()
 
+    def is_connecting(self):
+        return self._current_connection_attempt is not None
+
     def is_connected(self):
         return self.transport is not None
 
@@ -512,6 +516,7 @@ class XMLStream(asyncio.BaseProtocol):
             self.event("killed")
             self.disconnected.set_result(True)
             self.disconnected = asyncio.Future()
+            self.event("disconnected", self.disconnect_reason)
 
     def reconnect(self, wait=2.0, reason="Reconnecting"):
         """Calls disconnect(), and once we are disconnected (after the timeout, or