Add grid and iterator in the selected message, so it's easier to track

those messages back; delete action uses the grid and iterator to remove
the message from the grid when the operation completes successfully;
the network layer will take care of the favorite status, which will be
returned after the call (in case of error, an exception should be
raised.)

mitterlib/network/__init__.py

@@ -264,18 +264,23 @@ class Networks(object):
         return
 
     def favouite(self, message):
-        """Change the favorite status of the message."""
+        """Change the favorite status of the message. Returns the new
+        favorite status."""
         assert(isinstance(message, NetworkData))
         self._proxy()
         self.networks[message.network].favorite(message)
         self._operations += 1
         self._save()
-        return
+
+        # since the operation completed without a problem, we can toggle the
+        # message as favorited already.
+        message.favorite = not message.favorite
+        return message.favorite
 
     def delete_message(self, message, network=None):
-        """Delete an update. Message can be a NetworkData object, in which
-        case network is not necessary; otherwise a network must be
-        provided."""
+        """Delete an update. Message can be a :class:`NetworkData` object,
+        in which case network is not necessary; otherwise a network must be
+        provided. Always return the same message object"""
         if isinstance(message, NetworkData):
             network = message.network
 
@@ -283,7 +288,7 @@ class Networks(object):
         self.networks[network].delete_message(message)
         self._operations += 1
         self._save()
-        return
+        return message
 
     def message(self, message_id, network):
         """Return a single NetworkData object for a specified message."""

mitterlib/ui/helpers/gtk_messagegrid.py

@@ -95,6 +95,11 @@ class MessageGrid(gtk.ScrolledWindow, gobject.GObject):
             return None
 
         data = model.get_value(iter, 0)
+
+        # just so we can track this message again
+        data.grid = self
+        data.iter = iter
+
         return data
 
     def __init__(self, avatar_cache):
@@ -340,6 +345,20 @@ class MessageGrid(gtk.ScrolledWindow, gobject.GObject):
             iter = model.iter_next(iter)
         return
 
+    #-----------------------------------------------------------------------
+    # Class methods
+    #-----------------------------------------------------------------------
+    @staticmethod
+    def delete(self, message):
+        """Removes a message from the grid."""
+        if not hasattr(message, 'grid'):
+            _log.debug('No grid information in the message')
+            return
+
+        grid = message.grid
+        grid.remove(message)
+        return
+
     #-----------------------------------------------------------------------
     # Public functions
     #-----------------------------------------------------------------------
@@ -384,3 +403,14 @@ class MessageGrid(gtk.ScrolledWindow, gobject.GObject):
         """Make the grid to be redraw when possible."""
         # we need this 'cause _grid is not exposed.
         self._grid.queue_draw()
+        return
+
+    def remove(self, message):
+        """Remove a message from the list"""
+        if not hasattr(message, 'iter'):
+            _log.debug('No iterator information in the message')
+            return
+
+        iter = message.iter
+        self._grid.get_model().remove(iter)
+        return

mitterlib/ui/ui_pygtk.py

@@ -494,7 +494,6 @@ class Interface(object):
 
     def _clear_text(self, widget):
         """Clear the text field."""
-        self._delete_info = None
         self._clear_reply()
         self._update_field.hide()
 
@@ -537,9 +536,10 @@ class Interface(object):
 
     def _delete_message(self, widget, user_data=None):
         """Delete a message."""
-        (grid, counter) = self._grids[self._main_tabs.get_current_page()]
-        (model, iter) = grid.get_selection().get_selected()
-        message = model.get_value(iter, 0)
+        page = self._main_tabs.get_current_page()
+        message = self._main_tabs.get_nth_page(page).selected
+        if not message:
+            return
 
         confirm = gtk.MessageDialog(parent=self._main_window,
                 type=gtk.MESSAGE_QUESTION,
@@ -554,7 +554,6 @@ class Interface(object):
             return False
 
         self._update_statusbar(_('Deleting message...'))
-        self._delete_info = (grid, iter)
         _log.debug('Deleting messing %d', message.id)
         self._threads.add_work(self._post_delete_message,
                 self._exception_delete_message,
@@ -857,13 +856,11 @@ class Interface(object):
         return
 
     ### Results for the delete message call
-    def _post_delete_message(self, widget, data):
+    def _post_delete_message(self, widget, message):
         """Called when the message is deleted successfully."""
         _log.debug('Message deleted.')
-        if self._delete_info:
-            (grid, iter) = self._delete_info
-            grid.get_model().remove(iter)
-            self._delete_info = None
+        # any grid can take care of deleting the message
+        MessageGrid.delete(message)
         self._update_statusbar(_('Message deleted.'))
         return
 
@@ -895,18 +892,14 @@ class Interface(object):
         return
 
     ### Results from the favorite call
-    def _post_favorite_message(self, widget, data):
+    def _post_favorite_message(self, widget, status):
         """Called when the message was favorited successfully."""
         _log.debug('Favorite status changed.')
-        (grid, iter) = self._favorite_info
-        message = grid.get_model().get_value(iter, 0)
-        if message.favorite:
-            display = _('Message unfavorited.')
-        else:
+        if status:
             display = _('Message favorited.')
+        else:
+            display = _('Message unfavorited.')
         self._update_statusbar(display)
-        message.favorite = not message.favorite
-        self._favorite_info = None
         return
 
     def _exception_favorite_message(self, widget, exception):
@@ -957,9 +950,7 @@ class Interface(object):
 
         # This is the ugly bit for speeding up things and making
         # interthread communication.
-        self._delete_info = None
         self._reply_message_id = None
-        self._favorite_info = None
 
         return