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Add a binding test involving interfaces

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This tests the new functionality that
g_type_interface_instantiable_prerequisite
was added for.

Before the changes, this fails with
GObject-WARNING **: Unable to convert a value of type \
                    GObject to a value of type Foo

We do the same test with g_object_bind_property_with_closures
as well, to exercise g_cclosure_marshal_generic.
This commit is contained in:
Matthias Clasen 2020-07-12 15:51:00 -04:00 committed by Philip Withnall
parent 458e3b7a84
commit 52357aac44
1 changed files with 132 additions and 2 deletions
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134
gobject/tests/binding.c
View File

@ -2,6 +2,47 @@
#include <gstdio.h>
#include <glib-object.h>
typedef struct {
GTypeInterface g_iface;
} FooInterface;
GType foo_get_type (void);
G_DEFINE_INTERFACE (Foo, foo, G_TYPE_OBJECT)
static void
foo_default_init (FooInterface *iface)
{
}
typedef struct {
GObject parent;
} Baa;
typedef struct {
GObjectClass parent_class;
} BaaClass;
static void
baa_init_foo (FooInterface *iface)
{
}
GType baa_get_type (void);
G_DEFINE_TYPE_WITH_CODE (Baa, baa, G_TYPE_OBJECT,
G_IMPLEMENT_INTERFACE (foo_get_type (), baa_init_foo))
static void
baa_init (Baa *baa)
{
}
static void
baa_class_init (BaaClass *class)
{
}
typedef struct _BindingSource
{
GObject parent_instance;
@ -10,6 +51,7 @@ typedef struct _BindingSource
gint bar;
gdouble double_value;
gboolean toggle;
gpointer item;
} BindingSource;
typedef struct _BindingSourceClass
@ -24,7 +66,8 @@ enum
PROP_SOURCE_FOO,
PROP_SOURCE_BAR,
PROP_SOURCE_DOUBLE_VALUE,
PROP_SOURCE_TOGGLE
PROP_SOURCE_TOGGLE,
PROP_SOURCE_OBJECT
};
static GType binding_source_get_type (void);
@ -56,6 +99,10 @@ binding_source_set_property (GObject *gobject,
source->toggle = g_value_get_boolean (value);
break;
case PROP_SOURCE_OBJECT:
source->item = g_value_get_object (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
}
@ -87,6 +134,10 @@ binding_source_get_property (GObject *gobject,
g_value_set_boolean (value, source->toggle);
break;
case PROP_SOURCE_OBJECT:
g_value_set_object (value, source->item);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
}
@ -119,6 +170,10 @@ binding_source_class_init (BindingSourceClass *klass)
g_param_spec_boolean ("toggle", "Toggle", "Toggle",
FALSE,
G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, PROP_SOURCE_OBJECT,
g_param_spec_object ("object", "Object", "Object",
G_TYPE_OBJECT,
G_PARAM_READWRITE));
}
static void
@ -133,6 +188,7 @@ typedef struct _BindingTarget
gint bar;
gdouble double_value;
gboolean toggle;
gpointer foo;
} BindingTarget;
typedef struct _BindingTargetClass
@ -146,7 +202,8 @@ enum
PROP_TARGET_BAR,
PROP_TARGET_DOUBLE_VALUE,
PROP_TARGET_TOGGLE
PROP_TARGET_TOGGLE,
PROP_TARGET_FOO
};
static GType binding_target_get_type (void);
@ -174,6 +231,10 @@ binding_target_set_property (GObject *gobject,
target->toggle = g_value_get_boolean (value);
break;
case PROP_TARGET_FOO:
target->foo = g_value_get_object (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
}
@ -201,6 +262,10 @@ binding_target_get_property (GObject *gobject,
g_value_set_boolean (value, target->toggle);
break;
case PROP_TARGET_FOO:
g_value_set_object (value, target->foo);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
}
@ -228,6 +293,10 @@ binding_target_class_init (BindingTargetClass *klass)
g_param_spec_boolean ("toggle", "Toggle", "Toggle",
FALSE,
G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, PROP_TARGET_FOO,
g_param_spec_object ("foo", "Foo", "Foo",
foo_get_type (),
G_PARAM_READWRITE));
}
static void
@ -757,6 +826,66 @@ binding_fail (void)
g_assert_null (binding);
}
static gboolean
transform_to_func (GBinding *binding,
const GValue *value_a,
GValue *value_b,
gpointer user_data)
{
if (g_value_type_compatible (G_VALUE_TYPE (value_a), G_VALUE_TYPE (value_b)))
{
g_value_copy (value_a, value_b);
return TRUE;
}
if (g_value_type_transformable (G_VALUE_TYPE (value_a), G_VALUE_TYPE (value_b)))
{
if (g_value_transform (value_a, value_b))
return TRUE;
}
return FALSE;
}
static void
binding_interface (void)
{
BindingSource *source = g_object_new (binding_source_get_type (), NULL);
BindingTarget *target = g_object_new (binding_target_get_type (), NULL);
GObject *baa;
GBinding *binding;
GClosure *transform_to;
/* binding a generic object property to an interface-valued one */
binding = g_object_bind_property (source, "object",
target, "foo",
G_BINDING_DEFAULT);
baa = g_object_new (baa_get_type (), NULL);
g_object_set (source, "object", baa, NULL);
g_object_unref (baa);
g_binding_unbind (binding);
/* the same, with a generic marshaller */
transform_to = g_cclosure_new (G_CALLBACK (transform_to_func), NULL, NULL);
g_closure_set_marshal (transform_to, g_cclosure_marshal_generic);
binding = g_object_bind_property_with_closures (source, "object",
target, "foo",
G_BINDING_DEFAULT,
transform_to,
NULL);
baa = g_object_new (baa_get_type (), NULL);
g_object_set (source, "object", baa, NULL);
g_object_unref (baa);
g_binding_unbind (binding);
g_object_unref (source);
g_object_unref (target);
}
int
main (int argc, char *argv[])
{
@ -778,6 +907,7 @@ main (int argc, char *argv[])
g_test_add_func ("/binding/unbind-weak", binding_unbind_weak);
g_test_add_func ("/binding/unbind-multiple", binding_unbind_multiple);
g_test_add_func ("/binding/fail", binding_fail);
g_test_add_func ("/binding/interface", binding_interface);
return g_test_run ();
}