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a11y: Use ATK macros and clean up/1 - GtkAssistant

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ATK provides macros to the same effect as G_DEFINE_TYPE; using these
macros has the advantage of removing tons of duplicated code and
reducing the maintainership burden.

The widgets with inline accessibility implementation should switch to
these macros, and clean up the code.

https://bugzilla.gnome.org/show_bug.cgi?id=636060
This commit is contained in:
Emmanuele Bassi
2010-11-29 15:40:29 +00:00
parent 2fffce2c23
commit e7966a2c0c
1 changed files with 63 additions and 103 deletions
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166
gtk/gtkassistant.c
View File

@ -164,6 +164,7 @@ static void gtk_assistant_get_child_property (GtkContainer *container,
GParamSpec *pspec);
static AtkObject *gtk_assistant_get_accessible (GtkWidget *widget);
static GType gtk_assistant_accessible_factory_get_type (void);
static void gtk_assistant_buildable_interface_init (GtkBuildableIface *iface);
static GObject *gtk_assistant_buildable_get_internal_child (GtkBuildable *buildable,
@ -2438,27 +2439,59 @@ gtk_assistant_commit (GtkAssistant *assistant)
set_assistant_buttons_state (assistant);
}
static AtkObject *
gtk_assistant_get_accessible (GtkWidget *widget)
{
static gboolean first_time = TRUE;
if (first_time)
{
AtkObjectFactory *factory;
AtkRegistry *registry;
GType derived_type;
GType derived_atk_type;
/*
* Figure out whether accessibility is enabled by looking at the
* type of the accessible object which would be created for
* the parent type of GtkAssistant.
*/
derived_type = g_type_parent (GTK_TYPE_ASSISTANT);
registry = atk_get_default_registry ();
factory = atk_registry_get_factory (registry, derived_type);
derived_atk_type = atk_object_factory_get_accessible_type (factory);
if (g_type_is_a (derived_atk_type, GTK_TYPE_ACCESSIBLE))
atk_registry_set_factory_type (registry,
GTK_TYPE_ASSISTANT,
gtk_assistant_accessible_factory_get_type ());
first_time = FALSE;
}
return GTK_WIDGET_CLASS (gtk_assistant_parent_class)->get_accessible (widget);
}
/* accessible implementation */
/* dummy typedefs */
typedef struct _GtkAssistantAccessible GtkAssistantAccessible;
typedef struct _GtkAssistantAccessibleClass GtkAssistantAccessibleClass;
ATK_DEFINE_TYPE (GtkAssistantAccessible, gtk_assistant_accessible, GTK_TYPE_ASSISTANT);
static gint
gtk_assistant_accessible_get_n_children (AtkObject *accessible)
{
GtkAssistant *assistant;
GtkWidget *widget;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (accessible));
if (!widget)
if (widget == NULL)
return 0;
assistant = GTK_ASSISTANT (widget);
return g_list_length (assistant->priv->pages) + 1;
return g_list_length (GTK_ASSISTANT (accessible)->priv->pages) + 1;
}
static AtkObject *
gtk_assistant_accessible_ref_child (AtkObject *accessible,
gint index)
@ -2471,7 +2504,7 @@ gtk_assistant_accessible_ref_child (AtkObject *accessible,
const gchar *title;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (accessible));
if (!widget)
if (widget == NULL)
return NULL;
assistant = GTK_ASSISTANT (widget);
@ -2504,57 +2537,26 @@ gtk_assistant_accessible_ref_child (AtkObject *accessible,
}
static void
gtk_assistant_accessible_class_init (AtkObjectClass *class)
gtk_assistant_accessible_class_init (GtkAssistantAccessibleClass *klass)
{
class->get_n_children = gtk_assistant_accessible_get_n_children;
class->ref_child = gtk_assistant_accessible_ref_child;
AtkObjectClass *atk_class = ATK_OBJECT_CLASS (klass);
atk_class->get_n_children = gtk_assistant_accessible_get_n_children;
atk_class->ref_child = gtk_assistant_accessible_ref_child;
}
static GType
gtk_assistant_accessible_get_type (void)
static void
gtk_assistant_accessible_init (GtkAssistantAccessible *self)
{
static GType type = 0;
if (!type)
{
/*
* Figure out the size of the class and instance
* we are deriving from
*/
AtkObjectFactory *factory;
GType derived_type;
GTypeQuery query;
GType derived_atk_type;
derived_type = g_type_parent (GTK_TYPE_ASSISTANT);
factory = atk_registry_get_factory (atk_get_default_registry (),
derived_type);
derived_atk_type = atk_object_factory_get_accessible_type (factory);
g_type_query (derived_atk_type, &query);
type = g_type_register_static_simple (derived_atk_type,
I_("GtkAssistantAccessible"),
query.class_size,
(GClassInitFunc) gtk_assistant_accessible_class_init,
query.instance_size,
NULL, 0);
}
return type;
}
/* factory */
typedef AtkObjectFactory GtkAssistantAccessibleFactory;
typedef AtkObjectFactoryClass GtkAssistantAccessibleFactoryClass;
static AtkObject *
gtk_assistant_accessible_new (GObject *obj)
{
AtkObject *accessible;
g_return_val_if_fail (GTK_IS_ASSISTANT (obj), NULL);
accessible = g_object_new (gtk_assistant_accessible_get_type (), NULL);
atk_object_initialize (accessible, obj);
return accessible;
}
G_DEFINE_TYPE (GtkAssistantAccessibleFactory,
gtk_assistant_accessible_factory,
ATK_TYPE_OBJECT_FACTORY);
static GType
gtk_assistant_accessible_factory_get_accessible_type (void)
@ -2565,7 +2567,12 @@ gtk_assistant_accessible_factory_get_accessible_type (void)
static AtkObject*
gtk_assistant_accessible_factory_create_accessible (GObject *obj)
{
return gtk_assistant_accessible_new (obj);
AtkObject *accessible;
accessible = g_object_new (gtk_assistant_accessible_get_type (), NULL);
atk_object_initialize (accessible, obj);
return accessible;
}
static void
@ -2575,59 +2582,12 @@ gtk_assistant_accessible_factory_class_init (AtkObjectFactoryClass *class)
class->get_accessible_type = gtk_assistant_accessible_factory_get_accessible_type;
}
static GType
gtk_assistant_accessible_factory_get_type (void)
static void
gtk_assistant_accessible_factory_init (AtkObjectFactory *factory)
{
static GType type = 0;
if (!type)
{
type = g_type_register_static_simple (ATK_TYPE_OBJECT_FACTORY,
I_("GtkAssistantAccessibleFactory"),
sizeof (AtkObjectFactoryClass),
(GClassInitFunc) gtk_assistant_accessible_factory_class_init,
sizeof (AtkObjectFactory),
NULL, 0);
}
return type;
}
static AtkObject *
gtk_assistant_get_accessible (GtkWidget *widget)
{
static gboolean first_time = TRUE;
if (first_time)
{
AtkObjectFactory *factory;
AtkRegistry *registry;
GType derived_type;
GType derived_atk_type;
/*
* Figure out whether accessibility is enabled by looking at the
* type of the accessible object which would be created for
* the parent type of GtkAssistant.
*/
derived_type = g_type_parent (GTK_TYPE_ASSISTANT);
registry = atk_get_default_registry ();
factory = atk_registry_get_factory (registry,
derived_type);
derived_atk_type = atk_object_factory_get_accessible_type (factory);
if (g_type_is_a (derived_atk_type, GTK_TYPE_ACCESSIBLE))
{
atk_registry_set_factory_type (registry,
GTK_TYPE_ASSISTANT,
gtk_assistant_accessible_factory_get_type ());
}
first_time = FALSE;
}
return GTK_WIDGET_CLASS (gtk_assistant_parent_class)->get_accessible (widget);
}
/* buildable implementation */
static GtkBuildableIface *parent_buildable_iface;