From 4f149d1a1d57d416664184b6cbe160c5f364f530 Mon Sep 17 00:00:00 2001
From: "Richard W.M. Jones" <rjones@redhat.com>
Date: Fri, 28 Jun 2013 18:45:53 +0100
Subject: [RHEL-7.0 virt-manager PATCH 3/4] inspection: Check can_set_row_none
 before setting icon to None.

https://bugzilla.redhat.com/show_bug.cgi?id=979979

Previously one could set the icon field of a tree model to None, but
with Gtk3 and older versions of pygobject3 this would fail.

Use can_set_row_none to test for this condition and work around it.

The previous traceback was:

Traceback (most recent call last):
  File "/home/rjones/d/virt-manager/virtManager/manager.py", line 981, in vm_inspection_changed
    self.get_inspection_icon_pixbuf(vm, 16, 16)
  File "/usr/lib64/python2.7/site-packages/gi/overrides/Gtk.py", line 1152, in __setitem__
    self.model.set_value(self.iter, key, value)
  File "/usr/lib64/python2.7/site-packages/gi/overrides/Gtk.py", line 1298, in set_value
    Gtk.TreeStore.set_value(self, treeiter, column, value)
  File "/usr/lib64/python2.7/site-packages/gi/types.py", line 47, in function
    return info.invoke(*args, **kwargs)
TypeError: Argument 3 does not allow None as a value

(cherry picked from commit 9d5c1cdb1c03a8c045ae94ab5324aa7dda68e695)
---
 virtManager/manager.py | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/virtManager/manager.py b/virtManager/manager.py
index bdc21cf..25c3c57 100644
--- a/virtManager/manager.py
+++ b/virtManager/manager.py
@@ -977,8 +977,10 @@ class vmmManager(vmmGObjectUI):
             return

         row = self.rows[self.vm_row_key(vm)]
-        row[ROW_INSPECTION_OS_ICON] = \
-            self.get_inspection_icon_pixbuf(vm, 16, 16)
+        new_icon = self.get_inspection_icon_pixbuf(vm, 16, 16)
+        if not can_set_row_none:
+            new_icon = new_icon or ""
+        row[ROW_INSPECTION_OS_ICON] = new_icon
         model.row_changed(row.path, row.iter)

     def get_inspection_icon_pixbuf(self, vm, w, h):
--
1.8.3.2