[gtk/global-coords] menu: Fix destruction

[Matthias Clasen <matthiasc src gnome org>]

commit feef0ef93a11f92cb939bd3c22cf089eb4dc9a76
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Jun 1 03:19:30 2019 +0000

    menu: Fix destruction
    
    Now that menubar and menu are containers
    with internal structure, we need to be
    careful about doing the right thing in
    forall and dispose.

 gtk/gtkmenu.c    | 23 ++++++++++++++++++++++-
 gtk/gtkmenubar.c | 32 ++++++++++++++++++++++++++++++++
 2 files changed, 54 insertions(+), 1 deletion(-)
---
diff --git a/gtk/gtkmenu.c b/gtk/gtkmenu.c
index b4fc71a8fd..1cb05a58ed 100644
--- a/gtk/gtkmenu.c
+++ b/gtk/gtkmenu.c
@@ -172,6 +172,7 @@ static void     gtk_menu_get_property      (GObject          *object,
                                             GValue           *value,
                                             GParamSpec       *pspec);
 static void     gtk_menu_finalize          (GObject          *object);
+static void     gtk_menu_dispose           (GObject          *object);
 static void     gtk_menu_destroy           (GtkWidget        *widget);
 static void     gtk_menu_realize           (GtkWidget        *widget);
 static void     gtk_menu_unrealize         (GtkWidget        *widget);
@@ -257,6 +258,17 @@ gtk_menu_get_items (GtkMenuShell *menu_shell)
   return gtk_container_get_children (GTK_CONTAINER (priv->box));
 }
 
+static void
+gtk_menu_forall (GtkContainer *container,
+                 GtkCallback   callback,
+                 gpointer      data)
+{
+  GtkMenuPrivate *priv = GTK_MENU (container)->priv;
+
+  if (priv->box)
+    gtk_container_forall (GTK_CONTAINER (priv->box), callback, data);
+}
+
 static void
 gtk_menu_class_init (GtkMenuClass *class)
 {
@@ -269,6 +281,7 @@ gtk_menu_class_init (GtkMenuClass *class)
   gobject_class->set_property = gtk_menu_set_property;
   gobject_class->get_property = gtk_menu_get_property;
   gobject_class->finalize = gtk_menu_finalize;
+  gobject_class->dispose = gtk_menu_dispose;
 
   widget_class->destroy = gtk_menu_destroy;
   widget_class->realize = gtk_menu_realize;
@@ -282,6 +295,7 @@ gtk_menu_class_init (GtkMenuClass *class)
 
   container_class->add = gtk_menu_add;
   container_class->remove = gtk_menu_remove;
+  container_class->forall = gtk_menu_forall;
 
   menu_shell_class->submenu_placement = GTK_LEFT_RIGHT;
   menu_shell_class->deactivate = gtk_menu_deactivate;
@@ -869,13 +883,20 @@ gtk_menu_destroy (GtkWidget *widget)
 
 static void
 gtk_menu_finalize (GObject *object)
+{
+  G_OBJECT_CLASS (gtk_menu_parent_class)->finalize (object);
+}
+
+static void
+gtk_menu_dispose (GObject *object)
 {
   GtkMenu *menu = GTK_MENU (object);
   GtkMenuPrivate *priv = menu->priv;
 
   g_clear_pointer (&priv->swin, gtk_widget_unparent);
+  priv->box = NULL;
 
-  G_OBJECT_CLASS (gtk_menu_parent_class)->finalize (object);
+  G_OBJECT_CLASS (gtk_menu_parent_class)->dispose (object);
 }
 
 static void
diff --git a/gtk/gtkmenubar.c b/gtk/gtkmenubar.c
index ce9a868d0b..6a6babc40f 100644
--- a/gtk/gtkmenubar.c
+++ b/gtk/gtkmenubar.c
@@ -112,15 +112,46 @@ gtk_menu_bar_get_items (GtkMenuShell *menu_shell)
   return gtk_container_get_children (GTK_CONTAINER (menu_bar->box));
 }
 
+static void
+gtk_menu_bar_finalize (GObject *object)
+{
+  G_OBJECT_CLASS (gtk_menu_bar_parent_class)->finalize (object);
+}
+
+static void
+gtk_menu_bar_dispose (GObject *object)
+{
+  GtkMenuBar *menu_bar = GTK_MENU_BAR (object);
+
+  g_clear_pointer (&menu_bar->box, gtk_widget_unparent);
+
+  G_OBJECT_CLASS (gtk_menu_bar_parent_class)->dispose (object);
+}
+
+static void
+gtk_menu_bar_forall (GtkContainer *container,
+                     GtkCallback   callback,
+                     gpointer      data)
+{
+  GtkMenuBar *menu_bar = GTK_MENU_BAR (container);
+
+  if (menu_bar->box)
+    gtk_container_forall (GTK_CONTAINER (menu_bar->box), callback, data);
+}
+
 static void
 gtk_menu_bar_class_init (GtkMenuBarClass *class)
 {
+  GObjectClass *object_class = G_OBJECT_CLASS (class);
   GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
   GtkContainerClass *container_class = GTK_CONTAINER_CLASS (class);
   GtkMenuShellClass *menu_shell_class = GTK_MENU_SHELL_CLASS (class);
 
   GtkBindingSet *binding_set;
 
+  object_class->finalize = gtk_menu_bar_finalize;
+  object_class->dispose = gtk_menu_bar_dispose;
+
   widget_class->measure = gtk_menu_bar_measure;
   widget_class->size_allocate = gtk_menu_bar_size_allocate;
   widget_class->root = gtk_menu_bar_root;
@@ -128,6 +159,7 @@ gtk_menu_bar_class_init (GtkMenuBarClass *class)
 
   container_class->add = gtk_menu_bar_add;
   container_class->remove = gtk_menu_bar_remove;
+  container_class->forall = gtk_menu_bar_forall;
 
   menu_shell_class->insert = gtk_menu_bar_insert;
   menu_shell_class->submenu_placement = GTK_TOP_BOTTOM;