[gtk/wip/ebassi/shortcut: 54/85] shortcut: Add gtk_shortcut_set_mnemonic_activate()

[Emmanuele Bassi <ebassi src gnome org>]

commit e7d399523bc5ff7f9472222ef035189e4744e474
Author: Benjamin Otte <otte redhat com>
Date:   Thu Aug 16 05:18:01 2018 +0200

    shortcut: Add gtk_shortcut_set_mnemonic_activate()
    
    Makes the shortcut call gtk_widget_mnemonic_activate() upon activation.

 gtk/gtkshortcut.c | 81 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 gtk/gtkshortcut.h |  5 ++++
 2 files changed, 86 insertions(+)
---
diff --git a/gtk/gtkshortcut.c b/gtk/gtkshortcut.c
index d06966c694..c1224fa43d 100644
--- a/gtk/gtkshortcut.c
+++ b/gtk/gtkshortcut.c
@@ -59,6 +59,8 @@ struct _GtkShortcut
   gpointer user_data;
   GDestroyNotify destroy_notify;
   GVariant *args;
+
+  guint mnemonic_activate : 1;
 };
 
 enum
@@ -66,6 +68,7 @@ enum
   PROP_0,
   PROP_ARGUMENTS,
   PROP_CALLBACK,
+  PROP_MNEMONIC_ACTIVATE,
   PROP_SIGNAL,
   PROP_TRIGGER,
 
@@ -115,6 +118,10 @@ gtk_shortcut_get_property (GObject    *object,
       g_value_set_boolean (value, self->callback != NULL);
       break;
 
+    case PROP_MNEMONIC_ACTIVATE:
+      g_value_set_boolean (value, self->mnemonic_activate);
+      break;
+
     case PROP_SIGNAL:
       g_value_set_string (value, self->signal);
       break;
@@ -143,6 +150,10 @@ gtk_shortcut_set_property (GObject      *object,
       gtk_shortcut_set_arguments (self, g_value_get_variant (value));
       break;
 
+    case PROP_MNEMONIC_ACTIVATE:
+      gtk_shortcut_set_mnemonic_activate (self, g_value_get_boolean (value));
+      break;
+
     case PROP_SIGNAL:
       gtk_shortcut_set_signal (self, g_value_get_string (value));
       break;
@@ -191,6 +202,18 @@ gtk_shortcut_class_init (GtkShortcutClass *klass)
                           FALSE,
                           G_PARAM_READABLE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
 
+  /**
+   * GtkShortcut:mnemonic-activate:
+   *
+   * %TRUE if this shortcut should call gtk_widget_mnemonic_activate().
+   */
+  properties[PROP_MNEMONIC_ACTIVATE] =
+    g_param_spec_boolean ("mnemonic-activate",
+                          P_("Mnemonic activate"),
+                          P_("Call gtk_widget_mnemonic_activate()"),
+                          FALSE,
+                          G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
+
   /**
    * GtkShortcut:signal:
    *
@@ -484,6 +507,10 @@ gtk_shortcut_activate (GtkShortcut *self,
 
       return handled;
     }
+  else if (self->mnemonic_activate)
+    {
+      return gtk_widget_mnemonic_activate (widget, FALSE);
+    }
   else
     {
       /* shortcut is a dud */
@@ -580,6 +607,12 @@ gtk_shortcut_clear_activation (GtkShortcut *self)
 
       g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_CALLBACK]);
     }
+
+  if (self->mnemonic_activate)
+    {
+      self->mnemonic_activate = FALSE;
+      g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_MNEMONIC_ACTIVATE]);
+    }
 }
 
 const char *
@@ -638,3 +671,51 @@ gtk_shortcut_set_callback (GtkShortcut     *self,
   g_object_thaw_notify (G_OBJECT (self));
 }
 
+/**
+ * gtk_shortcut_get_mnemonic_activate:
+ * @self: a #GtkShortcut
+ *
+ * Checks if this shortcut calls gtk_widget_mnemonic_activate() upon
+ * activation.
+ *
+ * Returns: %TRUE if it does.
+ **/
+gboolean
+gtk_shortcut_get_mnemonic_activate (GtkShortcut *self)
+{
+  g_return_val_if_fail (GTK_IS_SHORTCUT (self), FALSE);
+
+  return self->mnemonic_activate;
+}
+
+/**
+ * gtk_shortcut_set_mnemonic_activate:
+ * @self: a #GtkShortcut
+ * @mnemonic_activate: %TRUE to call gtk_widget_mnemonic_activate()
+ *     upon activation
+ *
+ * If @mnemonic_activate is %TRUE, this shortcut will call
+ * gtk_widget_mnemonic_activate() whenever it is activated. All
+ * previous activations will be unset.
+ *
+ * If @mnemonic_activate is %FALSE, it will stop this shortcut from
+ * calling gtk_widget_mnemonic_activate() if it did so before.
+ **/
+void
+gtk_shortcut_set_mnemonic_activate (GtkShortcut *self,
+                                    gboolean     mnemonic_activate)
+{
+  g_return_if_fail (GTK_IS_SHORTCUT (self));
+
+  if (self->mnemonic_activate == mnemonic_activate)
+    return;
+  
+  g_object_freeze_notify (G_OBJECT (self));
+
+  gtk_shortcut_clear_activation (self);
+  self->mnemonic_activate = mnemonic_activate;
+
+  g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_MNEMONIC_ACTIVATE]);
+  g_object_thaw_notify (G_OBJECT (self));
+}
+
diff --git a/gtk/gtkshortcut.h b/gtk/gtkshortcut.h
index 96bba17d78..09e8a82cef 100644
--- a/gtk/gtkshortcut.h
+++ b/gtk/gtkshortcut.h
@@ -64,6 +64,11 @@ void            gtk_shortcut_set_callback                       (GtkShortcut
                                                                  GtkShortcutFunc         callback,
                                                                  gpointer                data,
                                                                  GDestroyNotify          destroy);
+GDK_AVAILABLE_IN_ALL
+gboolean        gtk_shortcut_get_mnemonic_activate              (GtkShortcut            *self);
+GDK_AVAILABLE_IN_ALL
+void            gtk_shortcut_set_mnemonic_activate              (GtkShortcut            *self,
+                                                                 gboolean                mnemonic_activate);
 
 G_END_DECLS