[nautilus/wip/antoniof/gtk4-preparation-miscellaneous: 5/5] general: Stop overriding GtkWidget.destroy()




commit b2a2fbe77f061f8baf125610358adfa6fd05ddd8
Author: António Fernandes <antoniof gnome org>
Date:   Sun Aug 15 21:50:02 2021 +0100

    general: Stop overriding GtkWidget.destroy()
    
    It's gone in GTK4.
    
    Anything we are doing on ::destroy can be done on ::dispose().
    Extra care must be taken, however, because GObject.dispose() may be
    run multiple times.
    
    Also, while we are at it, move some object unreferencing from
    .finalize() to .dispose(), which is where we should do it.

 src/nautilus-files-view.c        | 32 ++++++++++++++++----------------
 src/nautilus-location-entry.c    | 18 ++++++++----------
 src/nautilus-properties-window.c |  6 +++---
 src/nautilus-window.c            | 32 ++++++++++++--------------------
 4 files changed, 39 insertions(+), 49 deletions(-)
---
diff --git a/src/nautilus-files-view.c b/src/nautilus-files-view.c
index 3610eb4d0..ef0b615c9 100644
--- a/src/nautilus-files-view.c
+++ b/src/nautilus-files-view.c
@@ -3248,7 +3248,7 @@ nautilus_files_view_set_selection (NautilusView *nautilus_files_view,
 }
 
 static void
-nautilus_files_view_destroy (GtkWidget *object)
+nautilus_files_view_dispose (GObject *object)
 {
     NautilusFilesView *view;
     NautilusFilesViewPrivate *priv;
@@ -3341,11 +3341,18 @@ nautilus_files_view_destroy (GtkWidget *object)
 
     g_clear_object (&priv->search_query);
     g_clear_object (&priv->location);
+    g_clear_object (&priv->view_action_group);
+    g_clear_object (&priv->background_menu_model);
+    g_clear_object (&priv->selection_menu_model);
+    g_clear_object (&priv->toolbar_menu_sections->zoom_section);
+    g_clear_object (&priv->toolbar_menu_sections->extended_section);
+    g_clear_object (&priv->extensions_background_menu);
+    g_clear_object (&priv->templates_menu);
+    g_clear_object (&priv->rename_file_controller);
+    g_clear_object (&priv->new_folder_controller);
+    g_clear_object (&priv->compress_controller);
 
-    /* We don't own the slot, so no unref */
-    priv->slot = NULL;
-
-    GTK_WIDGET_CLASS (nautilus_files_view_parent_class)->destroy (object);
+    G_OBJECT_CLASS (nautilus_files_view_parent_class)->dispose (object);
 }
 
 static void
@@ -3357,16 +3364,9 @@ nautilus_files_view_finalize (GObject *object)
     view = NAUTILUS_FILES_VIEW (object);
     priv = nautilus_files_view_get_instance_private (view);
 
-    g_clear_object (&priv->view_action_group);
-    g_clear_object (&priv->background_menu_model);
-    g_clear_object (&priv->selection_menu_model);
-    g_clear_object (&priv->toolbar_menu_sections->zoom_section);
-    g_clear_object (&priv->toolbar_menu_sections->extended_section);
-    g_clear_object (&priv->extensions_background_menu);
-    g_clear_object (&priv->templates_menu);
-    g_clear_object (&priv->rename_file_controller);
-    g_clear_object (&priv->new_folder_controller);
-    g_clear_object (&priv->compress_controller);
+    /* We don't own the slot, so no unref */
+    priv->slot = NULL;
+
     g_free (priv->toolbar_menu_sections);
 
     g_hash_table_destroy (priv->non_ready_files);
@@ -9699,11 +9699,11 @@ nautilus_files_view_class_init (NautilusFilesViewClass *klass)
     widget_class = GTK_WIDGET_CLASS (klass);
     oclass = G_OBJECT_CLASS (klass);
 
+    oclass->dispose = nautilus_files_view_dispose;
     oclass->finalize = nautilus_files_view_finalize;
     oclass->get_property = nautilus_files_view_get_property;
     oclass->set_property = nautilus_files_view_set_property;
 
-    widget_class->destroy = nautilus_files_view_destroy;
     widget_class->event = nautilus_files_view_event;
     widget_class->parent_set = nautilus_files_view_parent_set;
     widget_class->grab_focus = nautilus_files_view_grab_focus;
diff --git a/src/nautilus-location-entry.c b/src/nautilus-location-entry.c
index 91b9ec7cb..4e1043396 100644
--- a/src/nautilus-location-entry.c
+++ b/src/nautilus-location-entry.c
@@ -576,18 +576,14 @@ finalize (GObject *object)
     entry = NAUTILUS_LOCATION_ENTRY (object);
     priv = nautilus_location_entry_get_instance_private (entry);
 
-    g_object_unref (priv->completer);
     g_free (priv->special_text);
-
-    g_clear_object (&priv->last_location);
-    g_clear_object (&priv->completion);
-    g_clear_object (&priv->completions_store);
+    g_free (priv->current_directory);
 
     G_OBJECT_CLASS (nautilus_location_entry_parent_class)->finalize (object);
 }
 
 static void
-destroy (GtkWidget *object)
+nautilus_location_entry_dispose (GObject *object)
 {
     NautilusLocationEntry *entry;
     NautilusLocationEntryPrivate *priv;
@@ -602,10 +598,12 @@ destroy (GtkWidget *object)
         priv->idle_id = 0;
     }
 
-    g_free (priv->current_directory);
-    priv->current_directory = NULL;
+    g_clear_object (&priv->completer);
+    g_clear_object (&priv->last_location);
+    g_clear_object (&priv->completion);
+    g_clear_object (&priv->completions_store);
 
-    GTK_WIDGET_CLASS (nautilus_location_entry_parent_class)->destroy (object);
+    G_OBJECT_CLASS (nautilus_location_entry_parent_class)->dispose (object);
 }
 
 static void
@@ -851,10 +849,10 @@ nautilus_location_entry_class_init (NautilusLocationEntryClass *class)
     GtkBindingSet *binding_set;
 
     widget_class = GTK_WIDGET_CLASS (class);
-    widget_class->destroy = destroy;
     widget_class->event = nautilus_location_entry_on_event;
 
     gobject_class = G_OBJECT_CLASS (class);
+    gobject_class->dispose = nautilus_location_entry_dispose;
     gobject_class->finalize = finalize;
 
     entry_class = GTK_ENTRY_CLASS (class);
diff --git a/src/nautilus-properties-window.c b/src/nautilus-properties-window.c
index a841eed97..c0bfdaa79 100644
--- a/src/nautilus-properties-window.c
+++ b/src/nautilus-properties-window.c
@@ -5090,7 +5090,7 @@ nautilus_properties_window_present (GList                            *original_f
 }
 
 static void
-real_destroy (GtkWidget *object)
+real_dispose (GObject *object)
 {
     NautilusPropertiesWindow *self;
 
@@ -5133,7 +5133,7 @@ real_destroy (GtkWidget *object)
     g_clear_handle_id (&self->update_directory_contents_timeout_id, g_source_remove);
     g_clear_handle_id (&self->update_files_timeout_id, g_source_remove);
 
-    GTK_WIDGET_CLASS (nautilus_properties_window_parent_class)->destroy (object);
+    G_OBJECT_CLASS (nautilus_properties_window_parent_class)->dispose (object);
 }
 
 static void
@@ -5375,8 +5375,8 @@ nautilus_properties_window_class_init (NautilusPropertiesWindowClass *klass)
 
     widget_class = GTK_WIDGET_CLASS (klass);
     oclass = G_OBJECT_CLASS (klass);
+    oclass->dispose = real_dispose;
     oclass->finalize = real_finalize;
-    widget_class->destroy = real_destroy;
 
     binding_set = gtk_binding_set_by_class (klass);
     g_signal_new ("close",
diff --git a/src/nautilus-window.c b/src/nautilus-window.c
index 54566b94d..4a800d3f7 100644
--- a/src/nautilus-window.c
+++ b/src/nautilus-window.c
@@ -2181,15 +2181,16 @@ destroy_slots_foreach (gpointer data,
     close_slot (window, slot, TRUE);
 }
 
+
 static void
-nautilus_window_destroy (GtkWidget *object)
+nautilus_window_dispose (GObject *object)
 {
     NautilusWindow *window;
-    NautilusApplication *application;
+    GtkApplication *application;
     GList *slots_copy;
 
     window = NAUTILUS_WINDOW (object);
-    application = NAUTILUS_APPLICATION (gtk_window_get_application (GTK_WINDOW (window)));
+    application = gtk_window_get_application (GTK_WINDOW (window));
 
     DEBUG ("Destroying window");
 
@@ -2209,23 +2210,20 @@ nautilus_window_destroy (GtkWidget *object)
 
     g_clear_weak_pointer (&window->active_slot);
 
-    g_clear_signal_handler (&window->bookmarks_id, nautilus_application_get_bookmarks (application));
+    if (application != NULL)
+    {
+        g_clear_signal_handler (&window->bookmarks_id,
+                                nautilus_application_get_bookmarks (NAUTILUS_APPLICATION (application)));
+    }
 
     g_clear_handle_id (&window->in_app_notification_undo_timeout_id, g_source_remove);
 
     nautilus_window_unexport_handle (window);
 
-    GTK_WIDGET_CLASS (nautilus_window_parent_class)->destroy (object);
-}
-
-static void
-nautilus_window_dispose (GObject *object)
-{
-    NautilusWindow *window;
-
-    window = NAUTILUS_WINDOW (object);
-
+    g_clear_object (&window->selected_file);
+    g_clear_object (&window->selected_volume);
     g_clear_object (&window->notebook_multi_press_gesture);
+    g_clear_object (&window->pad_controller);
 
     G_OBJECT_CLASS (nautilus_window_parent_class)->dispose (object);
 }
@@ -2255,17 +2253,12 @@ nautilus_window_finalize (GObject *object)
         window->notification_operation_timeout_id = 0;
     }
 
-    g_clear_object (&window->selected_file);
-    g_clear_object (&window->selected_volume);
-
     g_signal_handlers_disconnect_by_func (nautilus_file_undo_manager_get (),
                                           G_CALLBACK (nautilus_window_on_undo_changed),
                                           window);
 
     g_queue_free_full (window->tab_data_queue, free_navigation_state);
 
-    g_object_unref (window->pad_controller);
-
     /* nautilus_window_close() should have run */
     g_assert (window->slots == NULL);
 
@@ -2744,7 +2737,6 @@ nautilus_window_class_init (NautilusWindowClass *class)
     oclass->finalize = nautilus_window_finalize;
     oclass->constructed = nautilus_window_constructed;
 
-    wclass->destroy = nautilus_window_destroy;
     wclass->show = nautilus_window_show;
     wclass->realize = nautilus_window_realize;
     wclass->key_press_event = nautilus_window_key_press_event;


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