offline messaging part 2 - read receipts

src/callbacks.py

@@ -110,7 +110,7 @@ def friend_status_message(tox, friend_num, status_message, size, user_data):
     friend = profile.get_friend_by_number(friend_num)
     invoke_in_main_thread(friend.set_status_message, status_message)
     print 'User #{} has new status: {}'.format(friend_num, status_message)
-    profile.send_messages(friend_num)
+    invoke_in_main_thread(profile.send_messages, friend_num)
     if profile.get_active_number() == friend_num:
         invoke_in_main_thread(profile.set_active)
 
@@ -148,6 +148,10 @@ def friend_request(tox, public_key, message, message_size, user_data):
 def friend_typing(tox, friend_number, typing, user_data):
     invoke_in_main_thread(Profile.get_instance().friend_typing, friend_number, typing)
 
+
+def friend_read_receipt(tox, friend_number, message_id, user_data):
+    Profile.get_instance().get_friend_by_number(friend_number).dec_receipt()
+
 # -----------------------------------------------------------------------------------------------------------------
 # Callbacks - file transfers
 # -----------------------------------------------------------------------------------------------------------------
@@ -303,6 +307,7 @@ def init_callbacks(tox, window, tray):
     tox.callback_friend_status_message(friend_status_message, 0)
     tox.callback_friend_request(friend_request, 0)
     tox.callback_friend_typing(friend_typing, 0)
+    tox.callback_friend_read_receipt(friend_read_receipt, 0)
 
     tox.callback_file_recv(tox_file_recv(window, tray), 0)
     tox.callback_file_recv_chunk(file_recv_chunk, 0)

src/profile.py

@@ -144,6 +144,7 @@ class Friend(Contact):
         self._corr = []
         self._unsaved_messages = 0
         self._history_loaded = False
+        self._receipts = 0
 
     def __del__(self):
         self.set_visibility(False)
@@ -155,6 +156,19 @@ class Friend(Contact):
     # History support
     # -----------------------------------------------------------------------------------------------------------------
 
+    def get_receipts(self):
+        return self._receipts
+
+    receipts = property(get_receipts)
+
+    def inc_receipts(self):
+        self._receipts += 1
+
+    def dec_receipt(self):
+        if self._receipts:
+            self._receipts -= 1
+            self.mark_as_sent(False)
+
     def load_corr(self, first_time=True):
         """
         :param first_time: friend became active, load first part of messages
@@ -608,13 +622,11 @@ class Profile(Contact, Singleton):
             friend = self._friends[self._active_friend]
             if friend.status is not None:
                 self.split_and_send(friend.number, message_type, text.encode('utf-8'))
-                owner = MESSAGE_OWNER['ME']
-            else:
-                owner = MESSAGE_OWNER['NOT_SENT']
             self.create_message_item(text, curr_time(), self._name, message_type)
             self._screen.messageEdit.clear()
             self._messages.scrollToBottom()
-            friend.append_message(TextMessage(text, owner, time.time(), message_type))
+            friend.append_message(TextMessage(text, MESSAGE_OWNER['NOT_SENT'], time.time(), message_type))
+            friend.inc_receipts()
 
     # -----------------------------------------------------------------------------------------------------------------
     # History support