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GtkStack: Fix a potential crash in gtk_stack_get_first_accessible_child

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This one can occur when the stack has no pages.
This commit is contained in:
Lukáš Tyrychtr 2023-05-29 15:14:51 +02:00
parent dc306aec28
commit 35e813c814
1 changed files with 5 additions and 2 deletions
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7
gtk/gtkstack.c
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@ -809,9 +809,12 @@ gtk_stack_accessible_get_first_accessible_child (GtkAccessible *accessible)
{ {
GtkStack *stack = GTK_STACK (accessible); GtkStack *stack = GTK_STACK (accessible);
GtkStackPrivate *priv = gtk_stack_get_instance_private (stack); GtkStackPrivate *priv = gtk_stack_get_instance_private (stack);
GtkStackPage *page = g_ptr_array_index (priv->children, 0); GtkAccessible *page_accessible = NULL;
return GTK_ACCESSIBLE (g_object_ref (page)); if (priv->children->len > 0)
page_accessible = GTK_ACCESSIBLE (g_object_ref (g_ptr_array_index (priv->children, 0)));
return page_accessible;
} }
static void static void