tdf#138183 sync pending clipboard assign on clipboard ownership-change

Change-Id: I325add499fbd4d11a942ce550346dcbcb5343e4d
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/105928
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>

1 files changed, 13 insertions, 0 deletions

diff --git a/vcl/unx/gtk3/gtk3gtkinst.cxx b/vcl/unx/gtk3/gtk3gtkinst.cxx
index fb5227df063d..be37b2b49c02 100644
--- a/vcl/unx/gtk3/gtk3gtkinst.cxx
+++ b/vcl/unx/gtk3/gtk3gtkinst.cxx
@@ -750,6 +750,7 @@ public:
     void ClipboardClear();
     void OwnerPossiblyChanged(GtkClipboard *clipboard);
     void SetGtkClipboard();
+    void SyncGtkClipboard();
 };
 
 }
@@ -835,6 +836,7 @@ namespace
 
 void VclGtkClipboard::OwnerPossiblyChanged(GtkClipboard* clipboard)
 {
+    SyncGtkClipboard(); // tdf#138183 do any pending SetGtkClipboard calls
     if (!m_aContents.is())
         return;
 
@@ -1049,6 +1051,17 @@ IMPL_LINK_NOARG(VclGtkClipboard, AsyncSetGtkClipboard, void*, void)
     SetGtkClipboard();
 }
 
+void VclGtkClipboard::SyncGtkClipboard()
+{
+    osl::ClearableMutexGuard aGuard(m_aMutex);
+    if (m_pSetClipboardEvent)
+    {
+        Application::RemoveUserEvent(m_pSetClipboardEvent);
+        m_pSetClipboardEvent = nullptr;
+        SetGtkClipboard();
+    }
+}
+
 void VclGtkClipboard::SetGtkClipboard()
 {
     GtkClipboard* clipboard = gtk_clipboard_get(m_nSelection);