[nautilus/wip/antoniof/gtk4-preparation-popovers: 19/21] notebook: Dont override .insert-page()

[António Fernandes <antoniof src gnome org>]

commit b7a24466ce941d84be29b7cd11d5ef7784ea0bf0
Author: António Fernandes <antoniof gnome org>
Date:   Sun Dec 19 16:59:54 2021 +0000

    notebook: Dont override .insert-page()
    
    In GTK 4 this vfunc won't be available for override.
    
    Instead, we can achieve the same result by connecting to ::page-added.

 src/nautilus-notebook.c | 45 +++++++++++++--------------------------------
 1 file changed, 13 insertions(+), 32 deletions(-)
---
diff --git a/src/nautilus-notebook.c b/src/nautilus-notebook.c
index 69190e52f..ce3202495 100644
--- a/src/nautilus-notebook.c
+++ b/src/nautilus-notebook.c
@@ -37,12 +37,6 @@
 
 #define AFTER_ALL_TABS -1
 
-static int  nautilus_notebook_insert_page (GtkNotebook *notebook,
-                                           GtkWidget   *child,
-                                           GtkWidget   *tab_label,
-                                           GtkWidget   *menu_label,
-                                           int          position);
-
 struct _NautilusNotebook
 {
     GtkNotebook parent_instance;
@@ -60,11 +54,8 @@ static void
 nautilus_notebook_class_init (NautilusNotebookClass *klass)
 {
     GObjectClass *object_class = G_OBJECT_CLASS (klass);
-    GtkNotebookClass *notebook_class = GTK_NOTEBOOK_CLASS (klass);
 
     object_class->dispose = nautilus_notebook_dispose;
-
-    notebook_class->insert_page = nautilus_notebook_insert_page;
 }
 
 static gint
@@ -116,6 +107,18 @@ on_page_removed (GtkNotebook *notebook,
                                 gtk_notebook_get_n_pages (notebook) > 1);
 }
 
+static void
+on_page_added (GtkNotebook *notebook,
+               GtkWidget   *child,
+               guint        page_num,
+               gpointer     user_data)
+{
+    gtk_notebook_set_show_tabs (notebook,
+                                gtk_notebook_get_n_pages (notebook) > 1);
+    gtk_notebook_set_tab_reorderable (notebook, child, TRUE);
+    gtk_notebook_set_tab_detachable (notebook, child, TRUE);
+}
+
 static void
 nautilus_notebook_init (NautilusNotebook *notebook)
 {
@@ -124,6 +127,7 @@ nautilus_notebook_init (NautilusNotebook *notebook)
     gtk_notebook_set_show_tabs (GTK_NOTEBOOK (notebook), FALSE);
 
     g_signal_connect (notebook, "page-removed", G_CALLBACK (on_page_removed), NULL);
+    g_signal_connect (notebook, "page-added", G_CALLBACK (on_page_added), NULL);
 }
 
 gboolean
@@ -312,29 +316,6 @@ build_tab_label (NautilusNotebook   *notebook,
     return box;
 }
 
-static int
-nautilus_notebook_insert_page (GtkNotebook *gnotebook,
-                               GtkWidget   *tab_widget,
-                               GtkWidget   *tab_label,
-                               GtkWidget   *menu_label,
-                               int          position)
-{
-    g_assert (GTK_IS_WIDGET (tab_widget));
-
-    position = GTK_NOTEBOOK_CLASS (nautilus_notebook_parent_class)->insert_page (gnotebook,
-                                                                                 tab_widget,
-                                                                                 tab_label,
-                                                                                 menu_label,
-                                                                                 position);
-
-    gtk_notebook_set_show_tabs (gnotebook,
-                                gtk_notebook_get_n_pages (gnotebook) > 1);
-    gtk_notebook_set_tab_reorderable (gnotebook, tab_widget, TRUE);
-    gtk_notebook_set_tab_detachable (gnotebook, tab_widget, TRUE);
-
-    return position;
-}
-
 int
 nautilus_notebook_add_tab (NautilusNotebook   *notebook,
                            NautilusWindowSlot *slot,