[gtk/ebassi/activate-signal: 5/6] Add getter for WidgetClass.activate_signal

[Emmanuele Bassi <ebassi src gnome org>]

commit fe9c0db6039e501e45881e108497d3c60d043fa9
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Sat Dec 5 00:59:55 2020 +0000

    Add getter for WidgetClass.activate_signal
    
    Just like we have a setter.

 docs/reference/gtk/gtk4-sections.txt |  1 +
 gtk/gtkwidget.c                      | 18 ++++++++++++++++++
 gtk/gtkwidget.h                      |  2 ++
 3 files changed, 21 insertions(+)
---
diff --git a/docs/reference/gtk/gtk4-sections.txt b/docs/reference/gtk/gtk4-sections.txt
index 66eae4da6a..c8e46d89a2 100644
--- a/docs/reference/gtk/gtk4-sections.txt
+++ b/docs/reference/gtk/gtk4-sections.txt
@@ -4368,6 +4368,7 @@ gtk_widget_class_set_layout_manager_type
 gtk_widget_class_get_layout_manager_type
 gtk_widget_class_set_activate_signal
 gtk_widget_class_set_activate_signal_from_name
+gtk_widget_class_get_activate_signal
 gtk_widget_activate
 gtk_widget_is_focus
 gtk_widget_grab_focus
diff --git a/gtk/gtkwidget.c b/gtk/gtkwidget.c
index e638b377aa..a9a46c3a1e 100644
--- a/gtk/gtkwidget.c
+++ b/gtk/gtkwidget.c
@@ -4582,6 +4582,24 @@ gtk_widget_event (GtkWidget *widget,
   return return_val;
 }
 
+/**
+ * gtk_widget_class_get_activate_signal:
+ * @widget_class: a #GtkWidgetClass
+ *
+ * Retrieves the signal id for the activation signal set using
+ * gtk_widget_class_set_activate_signal().
+ *
+ * Returns: a signal id, or 0 if the widget class does not
+ *   specify an activation signal
+ */
+guint
+gtk_widget_class_get_activate_signal (GtkWidgetClass *widget_class)
+{
+  g_return_val_if_fail (GTK_IS_WIDGET_CLASS (widget_class), 0);
+
+  return widget_class->activate_signal;
+}
+
 /**
  * gtk_widget_class_set_activate_signal:
  * @widget_class: a #GtkWidgetClass
diff --git a/gtk/gtkwidget.h b/gtk/gtkwidget.h
index 8aa2403ac9..63ffca12b8 100644
--- a/gtk/gtkwidget.h
+++ b/gtk/gtkwidget.h
@@ -370,6 +370,8 @@ void       gtk_widget_class_set_activate_signal                 (GtkWidgetClass
 GDK_AVAILABLE_IN_ALL
 void       gtk_widget_class_set_activate_signal_from_name       (GtkWidgetClass *widget_class,
                                                                  const char     *signal_name);
+GDK_AVAILABLE_IN_ALL
+guint      gtk_widget_class_get_activate_signal                 (GtkWidgetClass *widget_class);
 
 GDK_AVAILABLE_IN_ALL
 gboolean   gtk_widget_mnemonic_activate   (GtkWidget           *widget,