[Libreoffice-commits] core.git: Branch 'libreoffice-7-6' - vcl/unx

[Caolán McNamara (via logerrit)]

 vcl/unx/gtk3/gtkinst.cxx |   11 +++++++++++
 1 file changed, 11 insertions(+)

New commits:
commit 3eb06d4708c79726607ad1ec4554b8f7cd66bbb2
Author:     Caolán McNamara <caolan.mcnam...@collabora.com>
AuthorDate: Fri Oct 20 14:38:29 2023 +0100
Commit:     Noel Grandin <noel.gran...@collabora.co.uk>
CommitDate: Mon Oct 23 07:30:03 2023 +0200

    Resolves: tdf#157849 gtk_spin_button_update callback can delete widget
    
    so later GtkInstanceEditable::signal_activate is on deleted widget
    
    Change-Id: I9bb9848b4554792db11fc7b0e2d3491a94975b3f
    Reviewed-on: https://gerrit.libreoffice.org/c/core/+/158167
    Tested-by: Jenkins
    Reviewed-by: Noel Grandin <noel.gran...@collabora.co.uk>

diff --git a/vcl/unx/gtk3/gtkinst.cxx b/vcl/unx/gtk3/gtkinst.cxx
index 5eb5b15d03ed..d39c37a5bd1b 100644
--- a/vcl/unx/gtk3/gtkinst.cxx
+++ b/vcl/unx/gtk3/gtkinst.cxx
@@ -17313,6 +17313,12 @@ IMPL_LINK_NOARG(GtkInstanceIconView, 
async_signal_selection_changed, void*, void
 
 namespace {
 
+void signalDestroyFlag(GtkWidget*, gpointer destroyed)
+{
+    bool* pDestroyed = static_cast<bool*>(destroyed);
+    *pDestroyed = true;
+}
+
 class GtkInstanceSpinButton : public GtkInstanceEditable, public virtual 
weld::SpinButton
 {
 private:
@@ -17367,7 +17373,12 @@ private:
 
     virtual void signal_activate() override
     {
+        bool bActivateDestroy(false);
+        gulong nDestroySignalId = g_signal_connect(m_pButton, "destroy", 
G_CALLBACK(signalDestroyFlag), &bActivateDestroy);
         gtk_spin_button_update(m_pButton);
+        if (bActivateDestroy)
+            return;
+        g_signal_handler_disconnect(m_pButton, nDestroySignalId);
         GtkInstanceEditable::signal_activate();
     }