/* GObject - GLib Type, Object, Parameter and Signal Library
* Copyright (C) 2001, 2003 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General
* Public License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*/
#undef G_LOG_DOMAIN
#define G_LOG_DOMAIN "TestIfaceProperties"
#undef G_DISABLE_ASSERT
#undef G_DISABLE_CHECKS
#undef G_DISABLE_CAST_CHECKS
#include <string.h>
#include <glib-object.h>
#include "testcommon.h"
/* This test tests interface properties, implementing interface
* properties and #GParamSpecOverride.
*
* Four properties are tested:
*
* prop1: Defined in TestIface, Implemented in BaseObject with a GParamSpecOverride
* prop2: Defined in TestIface, Implemented in BaseObject with a new property
* prop3: Defined in TestIface, Implemented in BaseObject, Overridden in DerivedObject
* prop4: Defined in BaseObject, Overridden in DerivedObject
*/
static GType base_object_get_type ();
static GType derived_object_get_type ();
enum {
BASE_PROP_0,
BASE_PROP1,
BASE_PROP2,
BASE_PROP3,
BASE_PROP4
};
enum {
DERIVED_PROP_0,
DERIVED_PROP3,
DERIVED_PROP4
};
/*
* BaseObject, a parent class for DerivedObject
*/
#define BASE_TYPE_OBJECT (base_object_get_type ())
#define BASE_OBJECT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), BASE_TYPE_OBJECT, BaseObject))
typedef struct _BaseObject BaseObject;
typedef struct _BaseObjectClass BaseObjectClass;
struct _BaseObject
{
GObject parent_instance;
gint val1;
gint val2;
gint val3;
gint val4;
};
struct _BaseObjectClass
{
GObjectClass parent_class;
};
GObjectClass *base_parent_class;
/*
* DerivedObject, the child class of DerivedObject
*/
#define DERIVED_TYPE_OBJECT (derived_object_get_type ())
typedef struct _DerivedObject DerivedObject;
typedef struct _DerivedObjectClass DerivedObjectClass;
struct _DerivedObject
{
BaseObject parent_instance;
};
struct _DerivedObjectClass
{
BaseObjectClass parent_class;
};
/*
* The interface
*/
typedef struct _TestIfaceClass TestIfaceClass;
struct _TestIfaceClass
{
GTypeInterface base_iface;
};
#define TEST_TYPE_IFACE (test_iface_get_type ())
/* The paramspecs installed on our interface
*/
static GParamSpec *iface_spec1, *iface_spec2, *iface_spec3;
/* The paramspecs inherited by our derived object
*/
static GParamSpec *inherited_spec1, *inherited_spec2, *inherited_spec3, *inherited_spec4;
static void
test_iface_default_init (TestIfaceClass *iface_vtable)
{
inherited_spec1 = iface_spec1 = g_param_spec_int ("prop1",
"Prop1",
"Property 1",
G_MININT, /* min */
0xFFFF, /* max */
42, /* default */
G_PARAM_READWRITE | G_PARAM_CONSTRUCT);
g_object_interface_install_property (iface_vtable, iface_spec1);
iface_spec2 = g_param_spec_int ("prop2",
"Prop2",
"Property 2",
G_MININT, /* min */
G_MAXINT, /* max */
0, /* default */
G_PARAM_WRITABLE);
g_object_interface_install_property (iface_vtable, iface_spec2);
inherited_spec3 = iface_spec3 = g_param_spec_int ("prop3",
"Prop3",
"Property 3",
G_MININT, /* min */
G_MAXINT, /* max */
0, /* default */
G_PARAM_READWRITE);
g_object_interface_install_property (iface_vtable, iface_spec3);
}
static DEFINE_IFACE (TestIface, test_iface, NULL, test_iface_default_init)
static GObject*
base_object_constructor (GType type,
guint n_construct_properties,
GObjectConstructParam *construct_properties)
{
/* The constructor is the one place where a GParamSpecOverride is visible
* to the outside world, so we do a bunch of checks here
*/
GValue value1 = { 0, };
GValue value2 = { 0, };
GParamSpec *pspec;
g_assert (n_construct_properties == 1);
pspec = construct_properties->pspec;
/* Check we got the param spec we expected
*/
g_assert (G_IS_PARAM_SPEC_OVERRIDE (pspec));
g_assert (pspec->param_id == BASE_PROP1);
g_assert (strcmp (g_param_spec_get_name (pspec), "prop1") == 0);
g_assert (g_param_spec_get_redirect_target (pspec) == iface_spec1);
/* Test redirection of the nick and blurb to the redirect target
*/
g_assert (strcmp (g_param_spec_get_nick (pspec), "Prop1") == 0);
g_assert (strcmp (g_param_spec_get_blurb (pspec), "Property 1") == 0);
/* Test forwarding of the various GParamSpec methods to the redirect target
*/
g_value_init (&value1, G_TYPE_INT);
g_value_init (&value2, G_TYPE_INT);
g_param_value_set_default (pspec, &value1);
g_assert (g_value_get_int (&value1) == 42);
g_value_reset (&value1);
g_value_set_int (&value1, 0x10000);
g_assert (g_param_value_validate (pspec, &value1));
g_assert (g_value_get_int (&value1) == 0xFFFF);
g_assert (!g_param_value_validate (pspec, &value1));
g_value_reset (&value1);
g_value_set_int (&value1, 1);
g_value_set_int (&value2, 2);
g_assert (g_param_values_cmp (pspec, &value1, &value2) < 0);
g_assert (g_param_values_cmp (pspec, &value2, &value1) > 0);
g_value_unset (&value1);
g_value_unset (&value2);
return base_parent_class->constructor (type,
n_construct_properties,
construct_properties);
}
static void
base_object_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
BaseObject *base_object = BASE_OBJECT (object);
switch (prop_id)
{
case BASE_PROP1:
g_assert (pspec == inherited_spec1);
base_object->val1 = g_value_get_int (value);
break;
case BASE_PROP2:
g_assert (pspec == inherited_spec2);
base_object->val2 = g_value_get_int (value);
break;
case BASE_PROP3:
g_assert_not_reached ();
break;
case BASE_PROP4:
g_assert_not_reached ();
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
base_object_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
BaseObject *base_object = BASE_OBJECT (object);
switch (prop_id)
{
case BASE_PROP1:
g_assert (pspec == inherited_spec1);
g_value_set_int (value, base_object->val1);
break;
case BASE_PROP2:
g_assert (pspec == inherited_spec2);
g_value_set_int (value, base_object->val2);
break;
case BASE_PROP3:
g_assert_not_reached ();
break;
case BASE_PROP4:
g_assert_not_reached ();
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
base_object_notify (GObject *object,
GParamSpec *pspec)
{
/* The property passed to notify is the redirect target, not the
* GParamSpecOverride
*/
g_assert (pspec == inherited_spec1 ||
pspec == inherited_spec2 ||
pspec == inherited_spec3 ||
pspec == inherited_spec4);
}
static void
base_object_class_init (BaseObjectClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
base_parent_class= g_type_class_peek_parent (class);
object_class->constructor = base_object_constructor;
object_class->set_property = base_object_set_property;
object_class->get_property = base_object_get_property;
object_class->notify = base_object_notify;
g_object_class_override_property (object_class, BASE_PROP1, "prop1");
/* We override this one using a real property, not GParamSpecOverride
* We change the flags from READONLY to READWRITE to show that we
* can make the flags less restrictive
*/
inherited_spec2 = g_param_spec_int ("prop2",
"Prop2",
"Property 2",
G_MININT, /* min */
G_MAXINT, /* max */
0, /* default */
G_PARAM_READWRITE);
g_object_class_install_property (object_class, BASE_PROP2, inherited_spec2);
g_object_class_override_property (object_class, BASE_PROP3, "prop3");
inherited_spec4 = g_param_spec_int ("prop4",
"Prop4",
"Property 4",
G_MININT, /* min */
G_MAXINT, /* max */
0, /* default */
G_PARAM_READWRITE);
g_object_class_install_property (object_class, BASE_PROP4, inherited_spec4);
}
static void
base_object_init (BaseObject *base_object)
{
base_object->val1 = 42;
}
static DEFINE_TYPE_FULL (BaseObject, base_object,
base_object_class_init, NULL, base_object_init,
G_TYPE_OBJECT,
INTERFACE (NULL, TEST_TYPE_IFACE))
static void
derived_object_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
BaseObject *base_object = BASE_OBJECT (object);
switch (prop_id)
{
case DERIVED_PROP3:
g_assert (pspec == inherited_spec3);
base_object->val3 = g_value_get_int (value);
break;
case DERIVED_PROP4:
g_assert (pspec == inherited_spec4);
base_object->val4 = g_value_get_int (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
derived_object_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
BaseObject *base_object = BASE_OBJECT (object);
switch (prop_id)
{
case DERIVED_PROP3:
g_assert (pspec == inherited_spec3);
g_value_set_int (value, base_object->val3);
break;
case DERIVED_PROP4:
g_assert (pspec == inherited_spec4);
g_value_set_int (value, base_object->val4);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
derived_object_class_init (DerivedObjectClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
object_class->set_property = derived_object_set_property;
object_class->get_property = derived_object_get_property;
/* Overriding a property that is itself overridding an interface property */
g_object_class_override_property (object_class, DERIVED_PROP3, "prop3");
/* Overriding a property not from an interface */
g_object_class_override_property (object_class, DERIVED_PROP4, "prop4");
}
static DEFINE_TYPE (DerivedObject, derived_object,
derived_object_class_init, NULL, NULL,
BASE_TYPE_OBJECT)
/* Helper function for testing ...list_properties()
*/
static void
assert_in_properties (GParamSpec *param_spec,
GParamSpec **properties,
gint n_properties)
{
gint i;
gboolean found = FALSE;
for (i = 0; i < n_properties; i++)
{
if (properties[i] == param_spec)
found = TRUE;
}
g_assert (found);
}
int
main (gint argc,
gchar *argv[])
{
BaseObject *object;
GObjectClass *object_class;
TestIfaceClass *iface_vtable;
GParamSpec **properties;
gint n_properties;
gint val1, val2, val3, val4;
g_log_set_always_fatal (g_log_set_always_fatal (G_LOG_FATAL_MASK) |
G_LOG_LEVEL_WARNING |
G_LOG_LEVEL_CRITICAL);
g_type_init ();
object = g_object_new (DERIVED_TYPE_OBJECT, NULL);
/* Test setting and getting the properties
*/
g_object_set (object,
"prop1", 0x0101,
"prop2", 0x0202,
"prop3", 0x0303,
"prop4", 0x0404,
NULL);
g_object_get (object,
"prop1", &val1,
"prop2", &val2,
"prop3", &val3,
"prop4", &val4,
NULL);
g_assert (val1 == 0x0101);
g_assert (val2 == 0x0202);
g_assert (val3 == 0x0303);
g_assert (val4 == 0x0404);
/* Test that the right spec is passed on explicit notifications
*/
g_object_freeze_notify (G_OBJECT (object));
g_object_notify (G_OBJECT (object), "prop1");
g_object_notify (G_OBJECT (object), "prop2");
g_object_notify (G_OBJECT (object), "prop3");
g_object_notify (G_OBJECT (object), "prop4");
g_object_thaw_notify (G_OBJECT (object));
/* Test g_object_class_find_property() for overridden properties
*/
object_class = G_OBJECT_GET_CLASS (object);
g_assert (g_object_class_find_property (object_class, "prop1") == inherited_spec1);
g_assert (g_object_class_find_property (object_class, "prop2") == inherited_spec2);
g_assert (g_object_class_find_property (object_class, "prop3") == inherited_spec3);
g_assert (g_object_class_find_property (object_class, "prop4") == inherited_spec4);
/* Test g_object_class_list_properties() for overridden properties
*/
properties = g_object_class_list_properties (object_class, &n_properties);
g_assert (n_properties == 4);
assert_in_properties (inherited_spec1, properties, n_properties);
assert_in_properties (inherited_spec2, properties, n_properties);
assert_in_properties (inherited_spec3, properties, n_properties);
assert_in_properties (inherited_spec4, properties, n_properties);
g_free (properties);
/* Test g_object_interface_find_property()
*/
iface_vtable = g_type_default_interface_peek (TEST_TYPE_IFACE);
g_assert (g_object_interface_find_property (iface_vtable, "prop1") == iface_spec1);
g_assert (g_object_interface_find_property (iface_vtable, "prop2") == iface_spec2);
g_assert (g_object_interface_find_property (iface_vtable, "prop3") == iface_spec3);
/* Test g_object_interface_list_properties()
*/
properties = g_object_interface_list_properties (iface_vtable, &n_properties);
g_assert (n_properties == 3);
assert_in_properties (iface_spec1, properties, n_properties);
assert_in_properties (iface_spec2, properties, n_properties);
assert_in_properties (iface_spec3, properties, n_properties);
g_free (properties);
g_object_unref (object);
return 0;
}