[Spice-devel] [PATCH spice-gtk] gtk: don't request clipboard targets when there is no owner

[marcandre.lureau at redhat.com]

From: Marc-André Lureau <marcandre.lureau at redhat.com>

After a clipboard-clear, the owner-changed signal is triggered, with
no owner. Let's avoid requesting for targets, that would lead to a
failure.

Fixes:
(lt-spicy:23226): GSpice-DEBUG: 13:36:38.741: spice-gtk-session.c:797 clipboard_clear
(lt-spicy:23226): GSpice-DEBUG: 13:36:38.742: spice-gtk-session.c:547 clipboard_get_targets:
(lt-spicy:23226): GSpice-DEBUG: 13:36:38.742: spice-gtk-session.c:555 Retrieving the clipboard data has failed

Signed-off-by: Marc-André Lureau <marcandre.lureau at redhat.com>
---
 src/spice-gtk-session.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/spice-gtk-session.c b/src/spice-gtk-session.c
index adc72a2..9d7702c 100644
--- a/src/spice-gtk-session.c
+++ b/src/spice-gtk-session.c
@@ -670,7 +670,8 @@ static void clipboard_owner_change(GtkClipboard        *clipboard,
 
     /* This situation happens when clipboard is being cleared by us, when agent
      * sends a release-grab for instance */
-    if (gtk_clipboard_get_owner(clipboard) == G_OBJECT(self)) {
+    GObject *owner = gtk_clipboard_get_owner(clipboard);
+    if (owner == NULL || owner == G_OBJECT(self)) {
         return;
     }
 
-- 
2.20.1.98.gecbdaf0899