connect and disconnect from IMAP server

Window.py

@@ -5,6 +5,8 @@ import imaplib
 class Window(object):
     def __init__(self, title, conf):
         self.conf = conf
+        self.connection = None
+
         if not 'width' in self.conf:
             self.conf['width'] = 32
         if not 'height' in self.conf:
@@ -26,6 +28,8 @@ class Window(object):
 
         self.window.add(self.label)
 
+        self.connect()
+
         self.window.show_all()
 
         if 'x' in self.conf and 'y' in self.conf:
@@ -35,6 +39,18 @@ class Window(object):
     def run(self):
         gtk.main()
 
+    def connect(self):
+        try:
+            self.connection = imaplib.IMAP4_SSL(
+                    self.conf['server'], self.conf['port'])
+            self.connection.login(self.conf['user'], self.conf['password'])
+        except:
+            self.connection = None
+
+    def disconnect(self):
+        if self.connection is not None:
+            self.connection = None
+
     def update_conf(self):
         w, h = self.window.get_size()
         self.conf['width'] = w
@@ -44,6 +60,7 @@ class Window(object):
         self.conf['y'] = y
 
     def destroy_event(self):
+        self.disconnect()
         self.update_conf()
         gtk.main_quit()
         return False