1 /* GObject - GLib Type, Object, Parameter and Signal Library
2 * Copyright (C) 2001, 2003 Red Hat, Inc.
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General
15 * Public License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
17 * Boston, MA 02111-1307, USA.
21 #define G_LOG_DOMAIN "TestAccumulator"
23 #undef G_DISABLE_ASSERT
24 #undef G_DISABLE_CHECKS
25 #undef G_DISABLE_CAST_CHECKS
29 #include <glib-object.h>
31 #include "testmarshal.h"
32 #include "testcommon.h"
34 /* What this test tests is the behavior of signal accumulators
35 * Two accumulators are tested:
37 * 1: A custom accumulator that appends the returned strings
38 * 2: The standard g_signal_accumulator_true_handled that stops
39 * emission on TRUE returns.
43 * TestObject, a parent class for TestObject
45 #define TEST_TYPE_OBJECT (test_object_get_type ())
46 typedef struct _TestObject TestObject
;
47 typedef struct _TestObjectClass TestObjectClass
;
51 GObject parent_instance
;
53 struct _TestObjectClass
55 GObjectClass parent_class
;
57 gchar
* (*test_signal1
) (TestObject
*tobject
,
59 gboolean (*test_signal2
) (TestObject
*tobject
,
61 GVariant
* (*test_signal3
) (TestObject
*tobject
,
65 static GType
test_object_get_type (void);
68 test_signal1_accumulator (GSignalInvocationHint
*ihint
,
70 const GValue
*handler_return
,
73 const gchar
*accu_string
= g_value_get_string (return_accu
);
74 const gchar
*new_string
= g_value_get_string (handler_return
);
78 result_string
= g_strconcat (accu_string
, new_string
, NULL
);
80 result_string
= g_strdup (new_string
);
84 g_value_set_string_take_ownership (return_accu
, result_string
);
90 test_object_signal1_callback_before (TestObject
*tobject
,
94 return g_strdup ("<before>");
98 test_object_real_signal1 (TestObject
*tobject
,
101 return g_strdup ("<default>");
105 test_object_signal1_callback_after (TestObject
*tobject
,
109 return g_strdup ("<after>");
113 test_object_signal2_callback_before (TestObject
*tobject
,
119 case 2: return FALSE
;
120 case 3: return FALSE
;
121 case 4: return FALSE
;
124 g_assert_not_reached ();
129 test_object_real_signal2 (TestObject
*tobject
,
134 case 1: g_assert_not_reached (); return FALSE
;
136 case 3: return FALSE
;
137 case 4: return FALSE
;
140 g_assert_not_reached ();
145 test_object_signal2_callback_after (TestObject
*tobject
,
150 case 1: g_assert_not_reached (); return FALSE
;
151 case 2: g_assert_not_reached (); return FALSE
;
153 case 4: return FALSE
;
156 g_assert_not_reached ();
161 test_signal3_accumulator (GSignalInvocationHint
*ihint
,
163 const GValue
*handler_return
,
168 variant
= g_value_get_variant (handler_return
);
169 g_assert (!g_variant_is_floating (variant
));
171 g_value_set_variant (return_accu
, variant
);
173 return variant
== NULL
;
176 /* To be notified when the variant is finalised, we construct
177 * it from data with a custom GDestroyNotify.
187 free_data (VariantData
*data
)
189 *(data
->weak_ptr
) = TRUE
;
191 g_slice_free (VariantData
, data
);
195 test_object_real_signal3 (TestObject
*tobject
,
201 variant
= g_variant_ref_sink (g_variant_new_uint32 (42));
202 data
= g_slice_new (VariantData
);
203 data
->weak_ptr
= weak_ptr
;
204 data
->n
= g_variant_get_size (variant
);
205 data
->mem
= g_malloc (data
->n
);
206 g_variant_store (variant
, data
->mem
);
207 g_variant_unref (variant
);
209 variant
= g_variant_new_from_data (G_VARIANT_TYPE ("u"),
213 (GDestroyNotify
) free_data
,
215 return g_variant_ref_sink (variant
);
219 test_object_class_init (TestObjectClass
*class)
221 class->test_signal1
= test_object_real_signal1
;
222 class->test_signal2
= test_object_real_signal2
;
223 class->test_signal3
= test_object_real_signal3
;
225 g_signal_new ("test-signal1",
226 G_OBJECT_CLASS_TYPE (class),
228 G_STRUCT_OFFSET (TestObjectClass
, test_signal1
),
229 test_signal1_accumulator
, NULL
,
230 test_marshal_STRING__INT
,
231 G_TYPE_STRING
, 1, G_TYPE_INT
);
232 g_signal_new ("test-signal2",
233 G_OBJECT_CLASS_TYPE (class),
235 G_STRUCT_OFFSET (TestObjectClass
, test_signal2
),
236 g_signal_accumulator_true_handled
, NULL
,
237 test_marshal_BOOLEAN__INT
,
238 G_TYPE_BOOLEAN
, 1, G_TYPE_INT
);
239 g_signal_new ("test-signal3",
240 G_OBJECT_CLASS_TYPE (class),
242 G_STRUCT_OFFSET (TestObjectClass
, test_signal3
),
243 test_signal3_accumulator
, NULL
,
244 test_marshal_VARIANT__POINTER
,
245 G_TYPE_VARIANT
, 1, G_TYPE_POINTER
);
248 static DEFINE_TYPE(TestObject
, test_object
,
249 test_object_class_init
, NULL
, NULL
,
257 gchar
*string_result
;
258 gboolean bool_result
;
259 gboolean variant_finalised
;
260 GVariant
*variant_result
;
262 g_log_set_always_fatal (g_log_set_always_fatal (G_LOG_FATAL_MASK
) |
263 G_LOG_LEVEL_WARNING
|
264 G_LOG_LEVEL_CRITICAL
);
267 object
= g_object_new (TEST_TYPE_OBJECT
, NULL
);
269 g_signal_connect (object
, "test-signal1",
270 G_CALLBACK (test_object_signal1_callback_before
), NULL
);
271 g_signal_connect_after (object
, "test-signal1",
272 G_CALLBACK (test_object_signal1_callback_after
), NULL
);
274 g_signal_emit_by_name (object
, "test-signal1", 0, &string_result
);
275 g_assert (strcmp (string_result
, "<before><default><after>") == 0);
276 g_free (string_result
);
278 g_signal_connect (object
, "test-signal2",
279 G_CALLBACK (test_object_signal2_callback_before
), NULL
);
280 g_signal_connect_after (object
, "test-signal2",
281 G_CALLBACK (test_object_signal2_callback_after
), NULL
);
284 g_signal_emit_by_name (object
, "test-signal2", 1, &bool_result
);
285 g_assert (bool_result
== TRUE
);
287 g_signal_emit_by_name (object
, "test-signal2", 2, &bool_result
);
288 g_assert (bool_result
== TRUE
);
290 g_signal_emit_by_name (object
, "test-signal2", 3, &bool_result
);
291 g_assert (bool_result
== TRUE
);
293 g_signal_emit_by_name (object
, "test-signal2", 4, &bool_result
);
294 g_assert (bool_result
== FALSE
);
296 variant_finalised
= FALSE
;
297 variant_result
= NULL
;
298 g_signal_emit_by_name (object
, "test-signal3", &variant_finalised
, &variant_result
);
299 g_assert (variant_result
!= NULL
);
300 g_assert (!g_variant_is_floating (variant_result
));
302 /* Test that variant_result had refcount 1 */
303 g_assert (!variant_finalised
);
304 g_variant_unref (variant_result
);
305 g_assert (variant_finalised
);