1 /* GObject - GLib Type, Object, Parameter and Signal Library
2 * Copyright (C) 2001, 2003 Red Hat, Inc.
3 *
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.
8 *
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.
13 *
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.
18 */
19
20 #undef G_LOG_DOMAIN
21 #define G_LOG_DOMAIN "TestIfaceCheck"
22
23 #undef G_DISABLE_ASSERT
24 #undef G_DISABLE_CHECKS
25 #undef G_DISABLE_CAST_CHECKS
26
27 #include <string.h>
28
29 #include <glib-object.h>
30
31 #include "testcommon.h"
32
33 /* This test tests g_type_add_interface_check_func(), which allows
34 * installing a post-initialization check function.
35 */
36
37 #define TEST_TYPE_IFACE (test_iface_get_type ())
38 #define TEST_IFACE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_INTERFACE ((obj), TEST_TYPE_IFACE, TestIfaceClass))
39 typedef struct _TestIfaceClass TestIfaceClass;
40
41 struct _TestIfaceClass
42 {
43 GTypeInterface base_iface;
44 GString *history;
45 };
46
47 static void
test_iface_base_init(TestIfaceClass * iface)48 test_iface_base_init (TestIfaceClass *iface)
49 {
50 iface->history = g_string_new (iface->history ? iface->history->str : NULL);
51 }
52
53 static DEFINE_IFACE(TestIface, test_iface, test_iface_base_init, NULL)
54
55 /*
56 * TestObject1
57 */
58 #define TEST_TYPE_OBJECT1 (test_object1_get_type ())
59 typedef struct _GObject TestObject1;
60 typedef struct _GObjectClass TestObject1Class;
61
62 static DEFINE_TYPE_FULL (TestObject1, test_object1,
63 NULL, NULL, NULL,
64 G_TYPE_OBJECT,
65 INTERFACE (NULL, TEST_TYPE_IFACE))
66
67 /*
68 * TestObject2
69 */
70 #define TEST_TYPE_OBJECT2 (test_object2_get_type ())
71 typedef struct _GObject TestObject2;
72 typedef struct _GObjectClass TestObject2Class;
73
74 static DEFINE_TYPE_FULL (TestObject2, test_object2,
75 NULL, NULL, NULL,
76 G_TYPE_OBJECT,
77 INTERFACE (NULL, TEST_TYPE_IFACE))
78
79 /*
80 * TestObject3
81 */
82 #define TEST_TYPE_OBJECT3 (test_object3_get_type ())
83 typedef struct _GObject TestObject3;
84 typedef struct _GObjectClass TestObject3Class;
85
86 static DEFINE_TYPE_FULL (TestObject3, test_object3,
87 NULL, NULL, NULL,
88 G_TYPE_OBJECT,
89 INTERFACE (NULL, TEST_TYPE_IFACE))
90
91 /*
92 * TestObject4
93 */
94 #define TEST_TYPE_OBJECT4 (test_object4_get_type ())
95 typedef struct _GObject TestObject4;
96 typedef struct _GObjectClass TestObject4Class;
97
98
99 static DEFINE_TYPE_FULL (TestObject4, test_object4,
100 NULL, NULL, NULL,
101 G_TYPE_OBJECT, {})
102
103 static void
check_func(gpointer check_data,gpointer g_iface)104 check_func (gpointer check_data,
105 gpointer g_iface)
106 {
107 TestIfaceClass *iface = g_iface;
108
109 g_string_append (iface->history, check_data);
110 }
111
112 int
main(int argc,char * argv[])113 main (int argc,
114 char *argv[])
115 {
116 TestIfaceClass *iface;
117 GObject *object;
118 char *string1 = "A";
119 char *string2 = "B";
120
121 g_type_init ();
122
123 /* Basic check of interfaces added before class_init time
124 */
125 g_type_add_interface_check (string1, check_func);
126
127 object = g_object_new (TEST_TYPE_OBJECT1, NULL);
128 iface = TEST_IFACE_GET_CLASS (object);
129 g_assert (strcmp (iface->history->str, "A") == 0);
130 g_object_unref (object);
131
132 /* Add a second check function
133 */
134 g_type_add_interface_check (string2, check_func);
135
136 object = g_object_new (TEST_TYPE_OBJECT2, NULL);
137 iface = TEST_IFACE_GET_CLASS (object);
138 g_assert (strcmp (iface->history->str, "AB") == 0);
139 g_object_unref (object);
140
141 /* Remove the first check function
142 */
143 g_type_remove_interface_check (string1, check_func);
144
145 object = g_object_new (TEST_TYPE_OBJECT3, NULL);
146 iface = TEST_IFACE_GET_CLASS (object);
147 g_assert (strcmp (iface->history->str, "B") == 0);
148 g_object_unref (object);
149
150 /* Test interfaces added after class_init time
151 */
152 g_type_class_ref (TEST_TYPE_OBJECT4);
153 {
154 static GInterfaceInfo const iface = {
155 NULL, NULL, NULL
156 };
157
158 g_type_add_interface_static (TEST_TYPE_OBJECT4, TEST_TYPE_IFACE, &iface);
159 }
160
161 object = g_object_new (TEST_TYPE_OBJECT4, NULL);
162 iface = TEST_IFACE_GET_CLASS (object);
163 g_assert (strcmp (iface->history->str, "B") == 0);
164 g_object_unref (object);
165
166 return 0;
167 }
168