ensure menu resources are released

this ensures all the menu resources are freed when the containing
 window receives the destroy signal. Previously these resources
 were leaked.

frontends/gtk/menu.c

@@ -263,8 +263,8 @@ nsgtk_menu_toolbars_submenu(GtkAccelGroup *group)
 * \param group the 'global' in a gtk sense accelerator reference
 */
 
-static struct nsgtk_developer_submenu *nsgtk_menu_developer_submenu(
+static struct nsgtk_developer_submenu *
-		GtkAccelGroup *group)
+nsgtk_menu_developer_submenu(GtkAccelGroup *group)
 {
 	struct nsgtk_developer_submenu *dmenu =
 			malloc(sizeof(struct nsgtk_developer_submenu));
@@ -423,7 +423,6 @@ static struct nsgtk_nav_menu *nsgtk_menu_nav_submenu(GtkAccelGroup *group)
 	ADD_SEP(nav, ret);
 	IMAGE_ITEM(nav, openlocation, gtkOpenLocation, ret, group);
 
-
 	return ret;
 }
 
@@ -597,3 +596,73 @@ nsgtk_link_menu_create(GtkAccelGroup *group)
 
 	return nmenu;
 }
+
+
+/* exported function documented in gtk/menu.h */
+nserror nsgtk_menu_bar_destroy(struct nsgtk_bar_submenu *menu)
+{
+	gtk_widget_destroy(GTK_WIDGET(menu->bar_menu));
+
+	free(menu->file_submenu->export_submenu);
+	free(menu->file_submenu);
+	free(menu->edit_submenu);
+	free(menu->view_submenu->tabs_submenu);
+	free(menu->view_submenu->toolbars_submenu);
+	free(menu->view_submenu->scaleview_submenu);
+	free(menu->view_submenu);
+	free(menu->nav_submenu);
+	free(menu->tabs_submenu);
+	free(menu->tools_submenu->developer_submenu);
+	free(menu->tools_submenu);
+	free(menu->help_submenu);
+	free(menu);
+
+	return NSERROR_OK;
+}
+
+/* exported function documented in gtk/menu.h */
+nserror nsgtk_burger_menu_destroy(struct nsgtk_burger_menu *menu)
+{
+	gtk_widget_destroy(GTK_WIDGET(menu->burger_menu));
+
+	free(menu->file_submenu->export_submenu);
+	free(menu->file_submenu);
+	free(menu->edit_submenu);
+	free(menu->view_submenu->tabs_submenu);
+	free(menu->view_submenu->toolbars_submenu);
+	free(menu->view_submenu->scaleview_submenu);
+	free(menu->view_submenu);
+	free(menu->nav_submenu);
+	free(menu->tabs_submenu);
+	free(menu->tools_submenu->developer_submenu);
+	free(menu->tools_submenu);
+	free(menu->help_submenu);
+	free(menu);
+
+	return NSERROR_OK;
+}
+
+
+/* exported function documented in gtk/menu.h */
+nserror nsgtk_popup_menu_destroy(struct nsgtk_popup_menu *menu)
+{
+	gtk_widget_destroy(GTK_WIDGET(menu->popup_menu));
+
+	free(menu->toolbars_submenu);
+	free(menu->tools_submenu->developer_submenu);
+	free(menu->tools_submenu);
+	free(menu);
+
+	return NSERROR_OK;
+}
+
+
+/* exported function documented in gtk/menu.h */
+nserror nsgtk_link_menu_destroy(struct nsgtk_link_menu *menu)
+{
+	gtk_widget_destroy(GTK_WIDGET(menu->link_menu));
+
+	free(menu);
+
+	return NSERROR_OK;
+}

frontends/gtk/menu.h

@@ -210,27 +210,82 @@ struct nsgtk_link_menu {
 	GtkWidget *copy_menuitem;
 };
 
+
 /**
  * Create main menubar menu.
  */
 struct nsgtk_bar_submenu *nsgtk_menu_bar_create(GtkMenuShell *menubar, GtkAccelGroup *group);
 
+
 /**
  * Generate burger menu.
+ *
+ * \param accelerator group to use with menu
+ * \return new menu structure or NULL on error
  */
 struct nsgtk_burger_menu *nsgtk_burger_menu_create(GtkAccelGroup *group);
 
+
 /**
  * Generate right click popup menu.
  *
+ * \param accelerator group to use with menu
+ * \return new menu structure or NULL on error
  */
 struct nsgtk_popup_menu *nsgtk_popup_menu_create(GtkAccelGroup *group);
 
+
 /**
  * Generate context sensitive link popup menu.
  *
+ * \param accelerator group to use with menu
+ * \return new menu structure or NULL on error
  */
 struct nsgtk_link_menu *nsgtk_link_menu_create(GtkAccelGroup *group);
 
 
+/**
+ * destroy bar menu
+ *
+ * destroys the gtk widgets associated with menu and frees all storage.
+ *
+ * \param menu menu to destroy
+ * \return NSERROR_OK and menu destroyed on success else error code
+ */
+nserror nsgtk_menu_bar_destroy(struct nsgtk_bar_submenu *menu);
+
+
+/**
+ * destroy burger menu
+ *
+ * destroys the gtk widgets associated with menu and frees all storage.
+ *
+ * \param menu menu to destroy
+ * \return NSERROR_OK and menu destroyed on success else error code
+ */
+nserror nsgtk_burger_menu_destroy(struct nsgtk_burger_menu *menu);
+
+
+/**
+ * destroy popup menu
+ *
+ * destroys the gtk widgets associated with menu and frees all storage.
+ *
+ * \param menu menu to destroy
+ * \return NSERROR_OK and menu destroyed on success else error code
+ */
+nserror nsgtk_popup_menu_destroy(struct nsgtk_popup_menu *menu);
+
+
+/**
+ * destroy link menu
+ *
+ * destroys the gtk widgets associated with menu and frees all storage.
+ *
+ * \param menu menu to destroy
+ * \return NSERROR_OK and menu destroyed on success else error code
+ */
+nserror nsgtk_link_menu_destroy(struct nsgtk_link_menu *menu);
+
+
 #endif

frontends/gtk/scaffolding.c

@@ -87,7 +87,7 @@ struct nsgtk_scaffolding {
 	/** link popup menu */
 	struct nsgtk_link_menu *link_menu;
 
-	/** menu entries widgets for sensativity adjustment */
+	/** menu entries widgets for sensitivity adjustment */
 	struct nsgtk_menu menus[PLACEHOLDER_BUTTON];
 };
 
@@ -201,6 +201,14 @@ static void scaffolding_window_destroy(GtkWidget *widget, gpointer data)
 
 	NSLOG(netsurf, INFO, "scaffold list head: %p", scaf_list);
 
+	/* ensure menu resources are freed */
+	nsgtk_menu_bar_destroy(gs->menu_bar);
+	nsgtk_burger_menu_destroy(gs->burger_menu);
+	nsgtk_popup_menu_destroy(gs->popup_menu);
+	nsgtk_link_menu_destroy(gs->link_menu);
+
+	free(gs);
+
 	if (scaf_list == NULL) {
 		/* no more open windows - stop the browser */
 		nsgtk_complete = true;
@@ -1008,7 +1016,7 @@ create_scaffolding_link_menu(struct nsgtk_scaffolding *g, GtkAccelGroup *group)
  */
 static nserror nsgtk_menu_initialise(struct nsgtk_scaffolding *g)
 {
-#define TOOLBAR_ITEM_p(identifier, name, iconame)				\
+#define TOOLBAR_ITEM_p(identifier, name, iconame)			\
 	g->menus[identifier].mhandler = nsgtk_on_##name##_activate_menu; \
 	g->menus[identifier].iconname = iconame;
 #define TOOLBAR_ITEM_y(identifier, name, iconame)			\
@@ -1393,6 +1401,7 @@ nserror nsgtk_scaffolding_toolbar_context_menu(struct nsgtk_scaffolding *gs)
 	return NSERROR_OK;
 }
 
+
 /* exported interface documented in gtk/scaffolding.h */
 nserror nsgtk_scaffolding_burger_menu(struct nsgtk_scaffolding *gs)
 {