[gtk/stack-add-child] stack: Add gtk_stack_add_child

[Matthias Clasen <matthiasc src gnome org>]

commit cc9fe4b354a6ae14f7f85d62d7807955d7a54799
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Sep 15 18:37:56 2020 -0400

    stack: Add gtk_stack_add_child
    
    The name of children is not essential, so add
    a way to add children without providing one.
    
    Fixes: #3165

 docs/reference/gtk/gtk4-sections.txt |  1 +
 docs/reference/gtk/migrating-3to4.md |  2 +-
 gtk/gtkstack.c                       | 19 +++++++++++++++++++
 gtk/gtkstack.h                       |  3 +++
 4 files changed, 24 insertions(+), 1 deletion(-)
---
diff --git a/docs/reference/gtk/gtk4-sections.txt b/docs/reference/gtk/gtk4-sections.txt
index d3986d02d6..62d617d582 100644
--- a/docs/reference/gtk/gtk4-sections.txt
+++ b/docs/reference/gtk/gtk4-sections.txt
@@ -5975,6 +5975,7 @@ gtk_stack_page_set_icon_name
 gtk_stack_page_get_child
 GtkStack
 gtk_stack_new
+gtk_stack_add_child
 gtk_stack_add_named
 gtk_stack_add_titled
 gtk_stack_remove
diff --git a/docs/reference/gtk/migrating-3to4.md b/docs/reference/gtk/migrating-3to4.md
index 8f99501358..59800003b5 100644
--- a/docs/reference/gtk/migrating-3to4.md
+++ b/docs/reference/gtk/migrating-3to4.md
@@ -606,7 +606,7 @@ The replacements for gtk_container_add() are:
 | GtkListBox      | gtk_list_box_insert() |
 | GtkNotebook     | gtk_notebook_append_page() |
 | GtkPaned        | gtk_paned_set_start_child(), gtk_paned_set_end_child() |
-| GtkStack        | gtk_stack_add_named() |
+| GtkStack        | gtk_stack_add_child() |
 | GtkTextView     | gtk_text_view_add_child_at_anchor(), gtk_text_view_add_overlay() |
 | GtkTreeView     | - |
 
diff --git a/gtk/gtkstack.c b/gtk/gtkstack.c
index 75a2fa9e30..8fd95a39f1 100644
--- a/gtk/gtkstack.c
+++ b/gtk/gtkstack.c
@@ -1292,6 +1292,25 @@ gtk_stack_add_titled (GtkStack   *stack,
   return gtk_stack_add_internal (stack, child, name, title);
 }
 
+/**
+ * gtk_stack_add_child:
+ * @stack: a #GtkStack
+ * @child: the widget to add
+ *
+ * Adds a child to @stack.
+ *
+ * Returns: (transfer none): the #GtkStackPage for @child
+ */
+GtkStackPage *
+gtk_stack_add_child (GtkStack   *stack,
+                     GtkWidget  *child)
+{
+  g_return_val_if_fail (GTK_IS_STACK (stack), NULL);
+  g_return_val_if_fail (GTK_IS_WIDGET (child), NULL);
+
+  return gtk_stack_add_internal (stack, child, NULL, NULL);
+}
+
 /**
  * gtk_stack_add_named:
  * @stack: a #GtkStack
diff --git a/gtk/gtkstack.h b/gtk/gtkstack.h
index 6253890aa5..cf506b49fb 100644
--- a/gtk/gtkstack.h
+++ b/gtk/gtkstack.h
@@ -113,6 +113,9 @@ GType                  gtk_stack_get_type                (void) G_GNUC_CONST;
 GDK_AVAILABLE_IN_ALL
 GtkWidget *            gtk_stack_new                     (void);
 GDK_AVAILABLE_IN_ALL
+GtkStackPage *         gtk_stack_add_child               (GtkStack               *stack,
+                                                          GtkWidget              *child);
+GDK_AVAILABLE_IN_ALL
 GtkStackPage *         gtk_stack_add_named               (GtkStack               *stack,
                                                           GtkWidget              *child,
                                                           const char             *name);