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headerbar: Null-check boxes when removing window controls

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Prevent a crash when show-title-buttons value changes to FALSE during
destruction.
This commit is contained in:
Alexander Mikhaylenko 2021-02-08 18:46:35 +05:00
parent 319755662f
commit cf61d96188
1 changed files with 2 additions and 2 deletions
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4
gtk/gtkheaderbar.c
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@ -743,13 +743,13 @@ gtk_header_bar_set_show_title_buttons (GtkHeaderBar *bar,
create_window_controls (bar);
else
{
if (bar->start_window_controls)
if (bar->start_box && bar->start_window_controls)
{
gtk_box_remove (GTK_BOX (bar->start_box), bar->start_window_controls);
bar->start_window_controls = NULL;
}
if (ar->end_window_controls)
if (bar->end_box && bar->end_window_controls)
{
gtk_box_remove (GTK_BOX (bar->end_box), bar->end_window_controls);
bar->end_window_controls = NULL;