glib/tests/gobject/override.c
Tim Janik 69c000f069 added some assertions to test g_signal_get_invocation_hint().
Tue Dec 18 21:39:57 2001  Tim Janik  <timj@gtk.org>

        * testoverride.c: added some assertions to test
        g_signal_get_invocation_hint().

        * gsignal.[hc]: remove signal_id argument from
        g_signal_chain_from_overridden(), the parameters are assumed to match
        the innermost signal currently in emission for this instance.
        added g_signal_get_invocation_hint() to figure the invocation hint
        of the innermost signal emission of an instance.

        * gsignal.c (g_signal_list_ids): fix G_BSEARCH_ARRAY_NODES() to
        access a bsearch array and not a pointer to it (discovered by
        Sven Neumann).
2001-12-18 20:38:58 +00:00

380 lines
9.5 KiB
C

/* -*- mode: C; c-basic-offset: 4 -*- */
#include <glib.h>
#include <glib-object.h>
static guint foo_signal_id = 0;
static guint bar_signal_id = 0;
static GType test_i_get_type (void);
static GType test_a_get_type (void);
static GType test_b_get_type (void);
static GType test_c_get_type (void);
#define TEST_TYPE_I (test_i_get_type ())
#define TEST_I(object) (G_TYPE_CHECK_INSTANCE_CAST((object), TEST_TYPE_I, TestI))
#define TEST_I_CLASS(vtable) (G_TYPE_CHECK_CLASS_CAST((vtable), TEST_TYPE_I, TestIClass))
#define TEST_IS_I(object) (G_TYPE_CHECK_INSTANCE_TYPE((object), TEST_TYPE_I))
#define TEST_IS_I_CLASS(vtable) (G_TYPE_CHECK_CLASS_TYPE((vtable), TEST_TYPE_I))
#define TEST_I_GET_CLASS(object) (G_TYPE_INSTANCE_GET_INTERFACE((object), TEST_TYPE_I, TestIClass))
typedef struct _TestI TestI;
typedef struct _TestIClass TestIClass;
struct _TestIClass {
GTypeInterface base_iface;
};
static void
test_i_foo (TestI *self)
{
g_print("TestI::foo called.\n");
}
static void
test_i_base_init (gpointer g_class)
{
static gboolean initialised = FALSE;
if (!initialised) {
foo_signal_id = g_signal_newv("foo",
TEST_TYPE_I,
G_SIGNAL_RUN_LAST,
g_cclosure_new(G_CALLBACK(test_i_foo),
NULL, NULL),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0, NULL);
}
initialised = TRUE;
}
static GType
test_i_get_type (void)
{
static GType type = 0;
if (!type) {
static const GTypeInfo type_info = {
sizeof (TestIClass),
(GBaseInitFunc) test_i_base_init, /* base_init */
NULL, /* base_finalize */
};
type = g_type_register_static (G_TYPE_INTERFACE, "TestI",
&type_info, 0);
}
return type;
}
#define TEST_TYPE_A (test_a_get_type())
#define TEST_A(object) (G_TYPE_CHECK_INSTANCE_CAST((object), TEST_TYPE_A, TestA))
#define TEST_A_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), TEST_TYPE_A, TestAClass))
#define TEST_IS_A(object) (G_TYPE_CHECK_INSTANCE_TYPE((object), TEST_TYPE_A))
#define TEST_IS_A_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), TEST_TYPE_A))
#define TEST_A_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), TEST_TYPE_A, TestAClass))
typedef struct _TestA TestA;
typedef struct _TestAClass TestAClass;
struct _TestA {
GObject parent;
};
struct _TestAClass {
GObjectClass parent_class;
void (* bar) (TestA *self);
};
static void
test_a_foo (TestI *self)
{
GValue args[1] = { { 0, } };
g_print("TestA::foo called. Chaining up.\n");
g_value_init (&args[0], TEST_TYPE_A);
g_value_set_object (&args[0], self);
g_assert (g_signal_get_invocation_hint (self)->signal_id == foo_signal_id);
g_signal_chain_from_overridden (args, NULL);
g_value_unset (&args[0]);
}
static void
test_a_bar (TestA *self)
{
g_print("TestA::bar called.\n");
}
static void
test_a_class_init (TestAClass *class)
{
class->bar = test_a_bar;
bar_signal_id = g_signal_new("bar",
TEST_TYPE_A,
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (TestAClass, bar),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
}
static void
test_a_interface_init (TestIClass *iface)
{
g_signal_override_class_closure (foo_signal_id,
TEST_TYPE_A,
g_cclosure_new (G_CALLBACK (test_a_foo),
NULL, NULL));
}
static GType
test_a_get_type (void)
{
static GType type = 0;
if (!type) {
static const GTypeInfo type_info = {
sizeof(TestAClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) test_a_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof(TestAClass),
0, /* n_preallocs */
(GInstanceInitFunc) NULL,
};
static const GInterfaceInfo interface_info = {
(GInterfaceInitFunc) test_a_interface_init,
NULL,
NULL
};
type = g_type_register_static (G_TYPE_OBJECT, "TestA",
&type_info, 0);
g_type_add_interface_static (type, TEST_TYPE_I, &interface_info);
}
return type;
}
#define TEST_TYPE_B (test_b_get_type())
#define TEST_B(object) (G_TYPE_CHECK_INSTANCE_CAST((object), TEST_TYPE_B, TestB))
#define TEST_B_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), TEST_TYPE_B, TestBClass))
#define TEST_IS_B(object) (G_TYPE_CHECK_INSTANCE_TYPE((object), TEST_TYPE_B))
#define TEST_IS_B_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), TEST_TYPE_B))
#define TEST_B_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), TEST_TYPE_B, TestBClass))
typedef struct _TestB TestB;
typedef struct _TestBClass TestBClass;
struct _TestB {
TestA parent;
};
struct _TestBClass {
TestAClass parent_class;
};
static void
test_b_foo (TestA *self)
{
GValue args[1] = { { 0, } };
g_print("TestB::foo called. Chaining up.\n");
g_value_init (&args[0], TEST_TYPE_A);
g_value_set_object (&args[0], self);
g_assert (g_signal_get_invocation_hint (self)->signal_id == foo_signal_id);
g_signal_chain_from_overridden (args, NULL);
g_value_unset (&args[0]);
}
static void
test_b_bar (TestI *self)
{
GValue args[1] = { { 0, } };
g_print("TestB::bar called. Chaining up.\n");
g_value_init (&args[0], TEST_TYPE_A);
g_value_set_object (&args[0], self);
g_assert (g_signal_get_invocation_hint (self)->signal_id == bar_signal_id);
g_signal_chain_from_overridden (args, NULL);
g_value_unset (&args[0]);
}
static void
test_b_class_init (TestBClass *class)
{
g_signal_override_class_closure (foo_signal_id,
TEST_TYPE_B,
g_cclosure_new (G_CALLBACK (test_b_foo),
NULL, NULL));
g_signal_override_class_closure (bar_signal_id,
TEST_TYPE_B,
g_cclosure_new (G_CALLBACK (test_b_bar),
NULL, NULL));
}
static GType
test_b_get_type (void)
{
static GType type = 0;
if (!type) {
static const GTypeInfo type_info = {
sizeof(TestBClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) test_b_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof(TestBClass),
0, /* n_preallocs */
(GInstanceInitFunc) NULL,
};
type = g_type_register_static (TEST_TYPE_A, "TestB",
&type_info, 0);
}
return type;
}
#define TEST_TYPE_C (test_c_get_type())
#define TEST_C(object) (G_TYPE_CHECK_INSTANCE_CAST((object), TEST_TYPE_C, TestC))
#define TEST_C_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), TEST_TYPE_C, TestCClass))
#define TEST_IS_C(object) (G_TYPE_CHECK_INSTANCE_TYPE((object), TEST_TYPE_C))
#define TEST_IS_C_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), TEST_TYPE_C))
#define TEST_C_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), TEST_TYPE_C, TestCClass))
typedef struct _TestC TestC;
typedef struct _TestCClass TestCClass;
struct _TestC {
TestB parent;
};
struct _TestCClass {
TestBClass parent_class;
};
static void
test_c_foo (TestA *self)
{
GValue args[1] = { { 0, } };
g_print("TestC::foo called. Chaining up.\n");
g_value_init (&args[0], TEST_TYPE_A);
g_value_set_object (&args[0], self);
g_assert (g_signal_get_invocation_hint (self)->signal_id == foo_signal_id);
g_signal_chain_from_overridden (args, NULL);
g_value_unset (&args[0]);
}
static void
test_c_bar (TestI *self)
{
GValue args[1] = { { 0, } };
g_print("TestC::bar called. Chaining up.\n");
g_value_init (&args[0], TEST_TYPE_A);
g_value_set_object (&args[0], self);
g_assert (g_signal_get_invocation_hint (self)->signal_id == bar_signal_id);
g_signal_chain_from_overridden (args, NULL);
g_value_unset (&args[0]);
}
static void
test_c_class_init (TestBClass *class)
{
g_signal_override_class_closure (foo_signal_id,
TEST_TYPE_C,
g_cclosure_new (G_CALLBACK (test_c_foo),
NULL, NULL));
g_signal_override_class_closure (bar_signal_id,
TEST_TYPE_C,
g_cclosure_new (G_CALLBACK (test_c_bar),
NULL, NULL));
}
static GType
test_c_get_type (void)
{
static GType type = 0;
if (!type) {
static const GTypeInfo type_info = {
sizeof(TestCClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) test_c_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof(TestCClass),
0, /* n_preallocs */
(GInstanceInitFunc) NULL,
};
type = g_type_register_static (TEST_TYPE_B, "TestC",
&type_info, 0);
}
return type;
}
int
main (int argc, char **argv)
{
GObject *self;
g_type_init();
self = g_object_new(TEST_TYPE_A, NULL);
g_print("*** emiting foo on a TestA instance (expect chain A->I)\n");
g_signal_emit(self, foo_signal_id, 0);
g_print("*** emiting bar on a TestA instance\n");
g_signal_emit(self, bar_signal_id, 0);
g_object_unref(self);
g_print("\n");
self = g_object_new(TEST_TYPE_B, NULL);
g_print("*** emiting foo on a TestB instance (expect chain B->A->I)\n");
g_signal_emit(self, foo_signal_id, 0);
g_print("*** emiting bar on a TestB instance (expect chain B->A)\n");
g_signal_emit(self, bar_signal_id, 0);
g_object_unref(self);
g_print("\n");
self = g_object_new(TEST_TYPE_C, NULL);
g_print("*** emiting foo on a TestC instance (expect chain C->B->A->I)\n");
g_signal_emit(self, foo_signal_id, 0);
g_print("*** emiting bar on a TestC instance (expect chain C->B->A)\n");
g_signal_emit(self, bar_signal_id, 0);
g_object_unref(self);
return 0;
}