From 1533775381b0201bdcc6dde2a06d2f87060551fa Mon Sep 17 00:00:00 2001
From: Philippe Normand <philn@igalia.com>
Date: Sun, 15 Apr 2018 11:28:33 +0100
Subject: [PATCH] debug-viewer: Dispatcher source ID clean-up

This patch fixes this runtime warning:
GstDebugViewer/Common/Data.py:67: Warning: Source ID 17 was not found when attempting to remove it
  GObject.source_remove(self.source_id)
---
 debug-viewer/GstDebugViewer/Common/Data.py | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/debug-viewer/GstDebugViewer/Common/Data.py b/debug-viewer/GstDebugViewer/Common/Data.py
index 500e72a..d743a47 100644
--- a/debug-viewer/GstDebugViewer/Common/Data.py
+++ b/debug-viewer/GstDebugViewer/Common/Data.py
@@ -56,8 +56,14 @@ class GSourceDispatcher (Dispatcher):
         if self.source_id is not None:
             GObject.source_remove(self.source_id)
 
+        def iteration():
+            r = iterator.__next__()
+            if not r:
+                self.source_id = None
+            return r
+
         self.source_id = GObject.idle_add(
-            iterator.__next__, priority=GObject.PRIORITY_LOW)
+            iteration, priority=GObject.PRIORITY_LOW)
 
     def cancel(self):
 
-- 
2.7.4