From 64cbb0d02e312a91c324b49ddb99bfb691b4e2cd Mon Sep 17 00:00:00 2001
From: Kali Kaneko <kali@leap.se>
Date: Thu, 31 Oct 2013 22:34:50 -0200
Subject: notify MUA of new mail as it gets added to mailbox

---
 src/leap/mail/imap/server.py | 48 +++++++++++++++++++++++++++++++++++---------
 1 file changed, 38 insertions(+), 10 deletions(-)

(limited to 'src/leap/mail/imap/server.py')

diff --git a/src/leap/mail/imap/server.py b/src/leap/mail/imap/server.py
index 9e3e23e..7a9f810 100644
--- a/src/leap/mail/imap/server.py
+++ b/src/leap/mail/imap/server.py
@@ -573,7 +573,7 @@ class SoledadBackedAccount(WithMsgFields, IndexedDB):
         return "<SoledadBackedAccount (%s)>" % self._account_name
 
 #######################################
-# Soledad Message, MessageCollection
+# LeapMessage, MessageCollection
 # and Mailbox
 #######################################
 
@@ -1099,6 +1099,7 @@ class SoledadMailbox(WithMsgFields):
     which we instantiate and make accessible in the `messages` attribute.
     """
     implements(imap4.IMailboxInfo, imap4.IMailbox, imap4.ICloseableMailbox)
+    # XXX should finish the implementation of IMailboxListener
 
     messages = None
     _closed = False
@@ -1115,6 +1116,8 @@ class SoledadMailbox(WithMsgFields):
     CMD_UIDVALIDITY = "UIDVALIDITY"
     CMD_UNSEEN = "UNSEEN"
 
+    listeners = []
+
     def __init__(self, mbox, soledad=None, rw=1):
         """
         SoledadMailbox constructor. Needs to get passed a name, plus a
@@ -1147,15 +1150,35 @@ class SoledadMailbox(WithMsgFields):
         if not self.getFlags():
             self.setFlags(self.INIT_FLAGS)
 
-        # XXX what is/was this used for? --------
-        # ---> mail/imap4.py +1155,
-        #      _cbSelectWork makes use of this
-        # probably should implement hooks here
-        # using leap.common.events
-        self.listeners = []
-        self.addListener = self.listeners.append
-        self.removeListener = self.listeners.remove
-        #------------------------------------------
+        # the server itself is a listener to the mailbox.
+        # so we can notify it (and should!) after chanes in flags
+        # and number of messages.
+        print "emptying the listeners"
+        map(lambda i: self.listeners.remove(i), self.listeners)
+
+    def addListener(self, listener):
+        """
+        Rdds a listener to the listeners queue.
+
+        :param listener: listener to add
+        :type listener: an object that implements IMailboxListener
+        """
+        logger.debug('adding mailbox listener: %s' % listener)
+        self.listeners.append(listener)
+
+    def removeListener(self, listener):
+        """
+        Removes a listener from the listeners queue.
+
+        :param listener: listener to remove
+        :type listener: an object that implements IMailboxListener
+        """
+        logger.debug('removing mailbox listener: %s' % listener)
+        try:
+            self.listeners.remove(listener)
+        except ValueError:
+            logger.error(
+                "removeListener: cannot remove listener %s" % listener)
 
     def _get_mbox(self):
         """
@@ -1180,6 +1203,7 @@ class SoledadMailbox(WithMsgFields):
         #return map(str, self.INIT_FLAGS)
 
         # XXX CHECK against thunderbird XXX
+        # XXX I think this is slightly broken.. :/
 
         mbox = self._get_mbox()
         if not mbox:
@@ -1352,6 +1376,10 @@ class SoledadMailbox(WithMsgFields):
 
         self.messages.add_msg(message, flags=flags, date=date,
                               uid=uid_next)
+        exists = len(self.messages)
+        recent = len(self.messages.get_recent())
+        for listener in self.listeners:
+            listener.newMessages(exists, recent)
         return defer.succeed(None)
 
     # commands, do not rename methods
-- 
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