[gtk/kill-containers: 138/199] textviewchild: Don't leak children

[Matthias Clasen <matthiasc src gnome org>]

commit e516616cca2cd790faf0d4d0b451cebbceb8da38
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon May 11 20:31:14 2020 -0400

    textviewchild: Don't leak children
    
    Like everybody else, GtkTextViewChild must
    unparent its children in dispose.

 gtk/gtktextviewchild.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)
---
diff --git a/gtk/gtktextviewchild.c b/gtk/gtktextviewchild.c
index 1462f3ecbd..a8a42278d1 100644
--- a/gtk/gtktextviewchild.c
+++ b/gtk/gtktextviewchild.c
@@ -373,6 +373,18 @@ gtk_text_view_child_set_property (GObject      *object,
     }
 }
 
+static void
+gtk_text_view_child_dispose (GObject *object)
+{
+  GtkTextViewChild *self = GTK_TEXT_VIEW_CHILD (object);
+  GtkWidget *child;
+
+  while ((child = gtk_widget_get_first_child (GTK_WIDGET (self))))
+    gtk_text_view_child_remove (self, child);
+
+  G_OBJECT_CLASS (gtk_text_view_child_parent_class)->dispose (object);
+}
+
 static void
 gtk_text_view_child_class_init (GtkTextViewChildClass *klass)
 {
@@ -380,6 +392,7 @@ gtk_text_view_child_class_init (GtkTextViewChildClass *klass)
   GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
   GtkContainerClass *container_class = GTK_CONTAINER_CLASS (klass);
 
+  object_class->dispose = gtk_text_view_child_dispose;
   object_class->constructed = gtk_text_view_child_constructed;
   object_class->get_property = gtk_text_view_child_get_property;
   object_class->set_property = gtk_text_view_child_set_property;