1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
|
#include <gtk/gtk.h>
static gboolean should_fail = FALSE;
#define BACON_TYPE_VIDEO_WIDGET (bacon_video_widget_get_type ())
G_DECLARE_FINAL_TYPE(BaconVideoWidget, bacon_video_widget, BACON, VIDEO_WIDGET, GtkOverlay)
static void bacon_video_widget_initable_iface_init (GInitableIface *iface);
struct _BaconVideoWidget
{
GtkOverlay parent;
gboolean object_init;
gboolean initable_init;
};
G_DEFINE_TYPE_WITH_CODE (BaconVideoWidget, bacon_video_widget, GTK_TYPE_OVERLAY,
G_IMPLEMENT_INTERFACE (G_TYPE_INITABLE,
bacon_video_widget_initable_iface_init))
static gboolean
bacon_video_widget_initable_init (GInitable *initable,
GCancellable *cancellable,
GError **error)
{
BaconVideoWidget *bvw;
bvw = BACON_VIDEO_WIDGET (initable);
if (should_fail) {
g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Initable widget was setup to fail.");
g_object_ref_sink (G_OBJECT (initable));
return FALSE;
}
bvw->initable_init = TRUE;
return TRUE;
}
static void
bacon_video_widget_initable_iface_init (GInitableIface *iface)
{
iface->init = bacon_video_widget_initable_init;
}
static void
bacon_video_widget_class_init (BaconVideoWidgetClass *klass)
{
/* empty */
}
static void
bacon_video_widget_init (BaconVideoWidget *bvw)
{
bvw->object_init = TRUE;
}
int main (int argc, char **argv)
{
GtkBuilder *builder;
guint num_objects;
GError *error = NULL;
GObject *bvw;
GSList *list = NULL;
gtk_init (&argc, &argv);
builder = gtk_builder_new ();
num_objects = gtk_builder_add_from_file (builder, "testbuilder.ui", &error);
g_assert_cmpint (num_objects, >, 0);
g_assert_no_error (error);
bvw = gtk_builder_get_object (builder, "bvw");
g_assert_nonnull (bvw);
g_assert_true(BACON_VIDEO_WIDGET(bvw)->initable_init);
list = gtk_builder_get_objects (builder);
g_assert_cmpint (g_slist_length (list), ==, 3);
g_clear_pointer (&list, g_slist_free);
gtk_widget_destroy (GTK_WIDGET (gtk_builder_get_object (builder, "totem_main_window")));
g_clear_object (&builder);
builder = gtk_builder_new_from_file ("testbuilder.ui");
bvw = gtk_builder_get_object (builder, "bvw");
g_assert_nonnull (bvw);
g_assert_true(BACON_VIDEO_WIDGET(bvw)->initable_init);
list = gtk_builder_get_objects (builder);
g_assert_cmpint (g_slist_length (list), ==, 3);
g_clear_pointer (&list, g_slist_free);
gtk_widget_destroy (GTK_WIDGET (gtk_builder_get_object (builder, "totem_main_window")));
g_clear_object (&builder);
should_fail = TRUE;
builder = gtk_builder_new ();
num_objects = gtk_builder_add_from_file (builder, "testbuilder.ui", &error);
g_assert_error(error, G_IO_ERROR, G_IO_ERROR_FAILED);
g_clear_error (&error);
g_assert_cmpint (num_objects, ==, 0);
list = gtk_builder_get_objects (builder);
g_assert_cmpint (g_slist_length (list), ==, 2);
g_clear_pointer (&list, g_slist_free);
g_clear_object (&builder);
/* This calls g_error() so disabled
builder = gtk_builder_new_from_file ("testbuilder.ui");
bvw = gtk_builder_get_object (builder, "bvw");
g_assert_null (bvw);
g_clear_object (&builder);
*/
return 0;
}
|
