1 #include <stdlib.h>
2 #include <gstdio.h>
3 #include <glib-object.h>
4
5 typedef struct {
6 GTypeInterface g_iface;
7 } FooInterface;
8
9 GType foo_get_type (void);
10
G_DEFINE_INTERFACE(Foo,foo,G_TYPE_OBJECT)11 G_DEFINE_INTERFACE (Foo, foo, G_TYPE_OBJECT)
12
13 static void
14 foo_default_init (FooInterface *iface)
15 {
16 }
17
18 typedef struct {
19 GObject parent;
20 } Baa;
21
22 typedef struct {
23 GObjectClass parent_class;
24 } BaaClass;
25
26 static void
baa_init_foo(FooInterface * iface)27 baa_init_foo (FooInterface *iface)
28 {
29 }
30
31 GType baa_get_type (void);
32
G_DEFINE_TYPE_WITH_CODE(Baa,baa,G_TYPE_OBJECT,G_IMPLEMENT_INTERFACE (foo_get_type (),baa_init_foo))33 G_DEFINE_TYPE_WITH_CODE (Baa, baa, G_TYPE_OBJECT,
34 G_IMPLEMENT_INTERFACE (foo_get_type (), baa_init_foo))
35
36 static void
37 baa_init (Baa *baa)
38 {
39 }
40
41 static void
baa_class_init(BaaClass * class)42 baa_class_init (BaaClass *class)
43 {
44 }
45
46 typedef struct _BindingSource
47 {
48 GObject parent_instance;
49
50 gint foo;
51 gint bar;
52 gdouble double_value;
53 gboolean toggle;
54 gpointer item;
55 } BindingSource;
56
57 typedef struct _BindingSourceClass
58 {
59 GObjectClass parent_class;
60 } BindingSourceClass;
61
62 enum
63 {
64 PROP_SOURCE_0,
65
66 PROP_SOURCE_FOO,
67 PROP_SOURCE_BAR,
68 PROP_SOURCE_DOUBLE_VALUE,
69 PROP_SOURCE_TOGGLE,
70 PROP_SOURCE_OBJECT
71 };
72
73 static GType binding_source_get_type (void);
G_DEFINE_TYPE(BindingSource,binding_source,G_TYPE_OBJECT)74 G_DEFINE_TYPE (BindingSource, binding_source, G_TYPE_OBJECT)
75
76 static void
77 binding_source_set_property (GObject *gobject,
78 guint prop_id,
79 const GValue *value,
80 GParamSpec *pspec)
81 {
82 BindingSource *source = (BindingSource *) gobject;
83
84 switch (prop_id)
85 {
86 case PROP_SOURCE_FOO:
87 source->foo = g_value_get_int (value);
88 break;
89
90 case PROP_SOURCE_BAR:
91 source->bar = g_value_get_int (value);
92 break;
93
94 case PROP_SOURCE_DOUBLE_VALUE:
95 source->double_value = g_value_get_double (value);
96 break;
97
98 case PROP_SOURCE_TOGGLE:
99 source->toggle = g_value_get_boolean (value);
100 break;
101
102 case PROP_SOURCE_OBJECT:
103 source->item = g_value_get_object (value);
104 break;
105
106 default:
107 G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
108 }
109 }
110
111 static void
binding_source_get_property(GObject * gobject,guint prop_id,GValue * value,GParamSpec * pspec)112 binding_source_get_property (GObject *gobject,
113 guint prop_id,
114 GValue *value,
115 GParamSpec *pspec)
116 {
117 BindingSource *source = (BindingSource *) gobject;
118
119 switch (prop_id)
120 {
121 case PROP_SOURCE_FOO:
122 g_value_set_int (value, source->foo);
123 break;
124
125 case PROP_SOURCE_BAR:
126 g_value_set_int (value, source->bar);
127 break;
128
129 case PROP_SOURCE_DOUBLE_VALUE:
130 g_value_set_double (value, source->double_value);
131 break;
132
133 case PROP_SOURCE_TOGGLE:
134 g_value_set_boolean (value, source->toggle);
135 break;
136
137 case PROP_SOURCE_OBJECT:
138 g_value_set_object (value, source->item);
139 break;
140
141 default:
142 G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
143 }
144 }
145
146 static void
binding_source_class_init(BindingSourceClass * klass)147 binding_source_class_init (BindingSourceClass *klass)
148 {
149 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
150
151 gobject_class->set_property = binding_source_set_property;
152 gobject_class->get_property = binding_source_get_property;
153
154 g_object_class_install_property (gobject_class, PROP_SOURCE_FOO,
155 g_param_spec_int ("foo", "Foo", "Foo",
156 -1, 100,
157 0,
158 G_PARAM_READWRITE));
159 g_object_class_install_property (gobject_class, PROP_SOURCE_BAR,
160 g_param_spec_int ("bar", "Bar", "Bar",
161 -1, 100,
162 0,
163 G_PARAM_READWRITE));
164 g_object_class_install_property (gobject_class, PROP_SOURCE_DOUBLE_VALUE,
165 g_param_spec_double ("double-value", "Value", "Value",
166 -100.0, 200.0,
167 0.0,
168 G_PARAM_READWRITE));
169 g_object_class_install_property (gobject_class, PROP_SOURCE_TOGGLE,
170 g_param_spec_boolean ("toggle", "Toggle", "Toggle",
171 FALSE,
172 G_PARAM_READWRITE));
173 g_object_class_install_property (gobject_class, PROP_SOURCE_OBJECT,
174 g_param_spec_object ("object", "Object", "Object",
175 G_TYPE_OBJECT,
176 G_PARAM_READWRITE));
177 }
178
179 static void
binding_source_init(BindingSource * self)180 binding_source_init (BindingSource *self)
181 {
182 }
183
184 typedef struct _BindingTarget
185 {
186 GObject parent_instance;
187
188 gint bar;
189 gdouble double_value;
190 gboolean toggle;
191 gpointer foo;
192 } BindingTarget;
193
194 typedef struct _BindingTargetClass
195 {
196 GObjectClass parent_class;
197 } BindingTargetClass;
198
199 enum
200 {
201 PROP_TARGET_0,
202
203 PROP_TARGET_BAR,
204 PROP_TARGET_DOUBLE_VALUE,
205 PROP_TARGET_TOGGLE,
206 PROP_TARGET_FOO
207 };
208
209 static GType binding_target_get_type (void);
G_DEFINE_TYPE(BindingTarget,binding_target,G_TYPE_OBJECT)210 G_DEFINE_TYPE (BindingTarget, binding_target, G_TYPE_OBJECT)
211
212 static void
213 binding_target_set_property (GObject *gobject,
214 guint prop_id,
215 const GValue *value,
216 GParamSpec *pspec)
217 {
218 BindingTarget *target = (BindingTarget *) gobject;
219
220 switch (prop_id)
221 {
222 case PROP_TARGET_BAR:
223 target->bar = g_value_get_int (value);
224 break;
225
226 case PROP_TARGET_DOUBLE_VALUE:
227 target->double_value = g_value_get_double (value);
228 break;
229
230 case PROP_TARGET_TOGGLE:
231 target->toggle = g_value_get_boolean (value);
232 break;
233
234 case PROP_TARGET_FOO:
235 target->foo = g_value_get_object (value);
236 break;
237
238 default:
239 G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
240 }
241 }
242
243 static void
binding_target_get_property(GObject * gobject,guint prop_id,GValue * value,GParamSpec * pspec)244 binding_target_get_property (GObject *gobject,
245 guint prop_id,
246 GValue *value,
247 GParamSpec *pspec)
248 {
249 BindingTarget *target = (BindingTarget *) gobject;
250
251 switch (prop_id)
252 {
253 case PROP_TARGET_BAR:
254 g_value_set_int (value, target->bar);
255 break;
256
257 case PROP_TARGET_DOUBLE_VALUE:
258 g_value_set_double (value, target->double_value);
259 break;
260
261 case PROP_TARGET_TOGGLE:
262 g_value_set_boolean (value, target->toggle);
263 break;
264
265 case PROP_TARGET_FOO:
266 g_value_set_object (value, target->foo);
267 break;
268
269 default:
270 G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
271 }
272 }
273
274 static void
binding_target_class_init(BindingTargetClass * klass)275 binding_target_class_init (BindingTargetClass *klass)
276 {
277 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
278
279 gobject_class->set_property = binding_target_set_property;
280 gobject_class->get_property = binding_target_get_property;
281
282 g_object_class_install_property (gobject_class, PROP_TARGET_BAR,
283 g_param_spec_int ("bar", "Bar", "Bar",
284 -1, 100,
285 0,
286 G_PARAM_READWRITE));
287 g_object_class_install_property (gobject_class, PROP_TARGET_DOUBLE_VALUE,
288 g_param_spec_double ("double-value", "Value", "Value",
289 -100.0, 200.0,
290 0.0,
291 G_PARAM_READWRITE));
292 g_object_class_install_property (gobject_class, PROP_TARGET_TOGGLE,
293 g_param_spec_boolean ("toggle", "Toggle", "Toggle",
294 FALSE,
295 G_PARAM_READWRITE));
296 g_object_class_install_property (gobject_class, PROP_TARGET_FOO,
297 g_param_spec_object ("foo", "Foo", "Foo",
298 foo_get_type (),
299 G_PARAM_READWRITE));
300 }
301
302 static void
binding_target_init(BindingTarget * self)303 binding_target_init (BindingTarget *self)
304 {
305 }
306
307 static gboolean
celsius_to_fahrenheit(GBinding * binding,const GValue * from_value,GValue * to_value,gpointer user_data G_GNUC_UNUSED)308 celsius_to_fahrenheit (GBinding *binding,
309 const GValue *from_value,
310 GValue *to_value,
311 gpointer user_data G_GNUC_UNUSED)
312 {
313 gdouble celsius, fahrenheit;
314
315 g_assert_true (G_VALUE_HOLDS (from_value, G_TYPE_DOUBLE));
316 g_assert_true (G_VALUE_HOLDS (to_value, G_TYPE_DOUBLE));
317
318 celsius = g_value_get_double (from_value);
319 fahrenheit = (9 * celsius / 5) + 32.0;
320
321 if (g_test_verbose ())
322 g_printerr ("Converting %.2fC to %.2fF\n", celsius, fahrenheit);
323
324 g_value_set_double (to_value, fahrenheit);
325
326 return TRUE;
327 }
328
329 static gboolean
fahrenheit_to_celsius(GBinding * binding,const GValue * from_value,GValue * to_value,gpointer user_data G_GNUC_UNUSED)330 fahrenheit_to_celsius (GBinding *binding,
331 const GValue *from_value,
332 GValue *to_value,
333 gpointer user_data G_GNUC_UNUSED)
334 {
335 gdouble celsius, fahrenheit;
336
337 g_assert_true (G_VALUE_HOLDS (from_value, G_TYPE_DOUBLE));
338 g_assert_true (G_VALUE_HOLDS (to_value, G_TYPE_DOUBLE));
339
340 fahrenheit = g_value_get_double (from_value);
341 celsius = 5 * (fahrenheit - 32.0) / 9;
342
343 if (g_test_verbose ())
344 g_printerr ("Converting %.2fF to %.2fC\n", fahrenheit, celsius);
345
346 g_value_set_double (to_value, celsius);
347
348 return TRUE;
349 }
350
351 static void
binding_default(void)352 binding_default (void)
353 {
354 BindingSource *source = g_object_new (binding_source_get_type (), NULL);
355 BindingTarget *target = g_object_new (binding_target_get_type (), NULL);
356 GObject *tmp;
357 GBinding *binding;
358
359 binding = g_object_bind_property (source, "foo",
360 target, "bar",
361 G_BINDING_DEFAULT);
362
363 g_object_add_weak_pointer (G_OBJECT (binding), (gpointer *) &binding);
364 tmp = g_binding_dup_source (binding);
365 g_assert_nonnull (tmp);
366 g_assert_true ((BindingSource *) tmp == source);
367 g_object_unref (tmp);
368 tmp = g_binding_dup_target (binding);
369 g_assert_nonnull (tmp);
370 g_assert_true ((BindingTarget *) tmp == target);
371 g_object_unref (tmp);
372 g_assert_cmpstr (g_binding_get_source_property (binding), ==, "foo");
373 g_assert_cmpstr (g_binding_get_target_property (binding), ==, "bar");
374 g_assert_cmpint (g_binding_get_flags (binding), ==, G_BINDING_DEFAULT);
375
376 g_object_set (source, "foo", 42, NULL);
377 g_assert_cmpint (source->foo, ==, target->bar);
378
379 g_object_set (target, "bar", 47, NULL);
380 g_assert_cmpint (source->foo, !=, target->bar);
381
382 g_object_unref (binding);
383
384 g_object_set (source, "foo", 0, NULL);
385 g_assert_cmpint (source->foo, !=, target->bar);
386
387 g_object_unref (source);
388 g_object_unref (target);
389 g_assert_null (binding);
390 }
391
392 static void
binding_canonicalisation(void)393 binding_canonicalisation (void)
394 {
395 BindingSource *source = g_object_new (binding_source_get_type (), NULL);
396 BindingTarget *target = g_object_new (binding_target_get_type (), NULL);
397 GBinding *binding;
398 GObject *tmp;
399
400 g_test_summary ("Test that bindings set up with non-canonical property names work");
401
402 binding = g_object_bind_property (source, "double_value",
403 target, "double_value",
404 G_BINDING_DEFAULT);
405
406 g_object_add_weak_pointer (G_OBJECT (binding), (gpointer *) &binding);
407 tmp = g_binding_dup_source (binding);
408 g_assert_nonnull (tmp);
409 g_assert_true ((BindingSource *) tmp == source);
410 g_object_unref (tmp);
411 tmp = g_binding_dup_target (binding);
412 g_assert_nonnull (tmp);
413 g_assert_true ((BindingTarget *) tmp == target);
414 g_object_unref (tmp);
415 g_assert_cmpstr (g_binding_get_source_property (binding), ==, "double-value");
416 g_assert_cmpstr (g_binding_get_target_property (binding), ==, "double-value");
417 g_assert_cmpint (g_binding_get_flags (binding), ==, G_BINDING_DEFAULT);
418
419 g_object_set (source, "double-value", 24.0, NULL);
420 g_assert_cmpfloat (target->double_value, ==, source->double_value);
421
422 g_object_set (target, "double-value", 69.0, NULL);
423 g_assert_cmpfloat (source->double_value, !=, target->double_value);
424
425 g_object_unref (target);
426 g_object_unref (source);
427 g_assert_null (binding);
428 }
429
430 static void
binding_bidirectional(void)431 binding_bidirectional (void)
432 {
433 BindingSource *source = g_object_new (binding_source_get_type (), NULL);
434 BindingTarget *target = g_object_new (binding_target_get_type (), NULL);
435 GBinding *binding;
436
437 binding = g_object_bind_property (source, "foo",
438 target, "bar",
439 G_BINDING_BIDIRECTIONAL);
440 g_object_add_weak_pointer (G_OBJECT (binding), (gpointer *) &binding);
441
442 g_object_set (source, "foo", 42, NULL);
443 g_assert_cmpint (source->foo, ==, target->bar);
444
445 g_object_set (target, "bar", 47, NULL);
446 g_assert_cmpint (source->foo, ==, target->bar);
447
448 g_object_unref (binding);
449
450 g_object_set (source, "foo", 0, NULL);
451 g_assert_cmpint (source->foo, !=, target->bar);
452
453 g_object_unref (source);
454 g_object_unref (target);
455 g_assert_null (binding);
456 }
457
458 static void
data_free(gpointer data)459 data_free (gpointer data)
460 {
461 gboolean *b = data;
462
463 *b = TRUE;
464 }
465
466 static void
binding_transform_default(void)467 binding_transform_default (void)
468 {
469 BindingSource *source = g_object_new (binding_source_get_type (), NULL);
470 BindingTarget *target = g_object_new (binding_target_get_type (), NULL);
471 GBinding *binding;
472 gpointer src, trg;
473 gchar *src_prop, *trg_prop;
474 GBindingFlags flags;
475
476 binding = g_object_bind_property (source, "foo",
477 target, "double-value",
478 G_BINDING_BIDIRECTIONAL);
479
480 g_object_add_weak_pointer (G_OBJECT (binding), (gpointer *) &binding);
481
482 g_object_get (binding,
483 "source", &src,
484 "source-property", &src_prop,
485 "target", &trg,
486 "target-property", &trg_prop,
487 "flags", &flags,
488 NULL);
489 g_assert_true (src == source);
490 g_assert_true (trg == target);
491 g_assert_cmpstr (src_prop, ==, "foo");
492 g_assert_cmpstr (trg_prop, ==, "double-value");
493 g_assert_cmpint (flags, ==, G_BINDING_BIDIRECTIONAL);
494 g_object_unref (src);
495 g_object_unref (trg);
496 g_free (src_prop);
497 g_free (trg_prop);
498
499 g_object_set (source, "foo", 24, NULL);
500 g_assert_cmpfloat (target->double_value, ==, 24.0);
501
502 g_object_set (target, "double-value", 69.0, NULL);
503 g_assert_cmpint (source->foo, ==, 69);
504
505 g_object_unref (target);
506 g_object_unref (source);
507 g_assert_null (binding);
508 }
509
510 static void
binding_transform(void)511 binding_transform (void)
512 {
513 BindingSource *source = g_object_new (binding_source_get_type (), NULL);
514 BindingTarget *target = g_object_new (binding_target_get_type (), NULL);
515 GBinding *binding G_GNUC_UNUSED;
516 gboolean unused_data = FALSE;
517
518 binding = g_object_bind_property_full (source, "double-value",
519 target, "double-value",
520 G_BINDING_BIDIRECTIONAL,
521 celsius_to_fahrenheit,
522 fahrenheit_to_celsius,
523 &unused_data, data_free);
524
525 g_object_set (source, "double-value", 24.0, NULL);
526 g_assert_cmpfloat (target->double_value, ==, ((9 * 24.0 / 5) + 32.0));
527
528 g_object_set (target, "double-value", 69.0, NULL);
529 g_assert_cmpfloat (source->double_value, ==, (5 * (69.0 - 32.0) / 9));
530
531 g_object_unref (source);
532 g_object_unref (target);
533
534 g_assert_true (unused_data);
535 }
536
537 static void
binding_transform_closure(void)538 binding_transform_closure (void)
539 {
540 BindingSource *source = g_object_new (binding_source_get_type (), NULL);
541 BindingTarget *target = g_object_new (binding_target_get_type (), NULL);
542 GBinding *binding G_GNUC_UNUSED;
543 gboolean unused_data_1 = FALSE, unused_data_2 = FALSE;
544 GClosure *c2f_clos, *f2c_clos;
545
546 c2f_clos = g_cclosure_new (G_CALLBACK (celsius_to_fahrenheit), &unused_data_1, (GClosureNotify) data_free);
547
548 f2c_clos = g_cclosure_new (G_CALLBACK (fahrenheit_to_celsius), &unused_data_2, (GClosureNotify) data_free);
549
550 binding = g_object_bind_property_with_closures (source, "double-value",
551 target, "double-value",
552 G_BINDING_BIDIRECTIONAL,
553 c2f_clos,
554 f2c_clos);
555
556 g_object_set (source, "double-value", 24.0, NULL);
557 g_assert_cmpfloat (target->double_value, ==, ((9 * 24.0 / 5) + 32.0));
558
559 g_object_set (target, "double-value", 69.0, NULL);
560 g_assert_cmpfloat (source->double_value, ==, (5 * (69.0 - 32.0) / 9));
561
562 g_object_unref (source);
563 g_object_unref (target);
564
565 g_assert_true (unused_data_1);
566 g_assert_true (unused_data_2);
567 }
568
569 static void
binding_chain(void)570 binding_chain (void)
571 {
572 BindingSource *a = g_object_new (binding_source_get_type (), NULL);
573 BindingSource *b = g_object_new (binding_source_get_type (), NULL);
574 BindingSource *c = g_object_new (binding_source_get_type (), NULL);
575 GBinding *binding_1, *binding_2;
576
577 g_test_bug_base ("http://bugzilla.gnome.org/");
578 g_test_bug ("621782");
579
580 /* A -> B, B -> C */
581 binding_1 = g_object_bind_property (a, "foo", b, "foo", G_BINDING_BIDIRECTIONAL);
582 g_object_add_weak_pointer (G_OBJECT (binding_1), (gpointer *) &binding_1);
583
584 binding_2 = g_object_bind_property (b, "foo", c, "foo", G_BINDING_BIDIRECTIONAL);
585 g_object_add_weak_pointer (G_OBJECT (binding_2), (gpointer *) &binding_2);
586
587 /* verify the chain */
588 g_object_set (a, "foo", 42, NULL);
589 g_assert_cmpint (a->foo, ==, b->foo);
590 g_assert_cmpint (b->foo, ==, c->foo);
591
592 /* unbind A -> B and B -> C */
593 g_object_unref (binding_1);
594 g_assert_null (binding_1);
595 g_object_unref (binding_2);
596 g_assert_null (binding_2);
597
598 /* bind A -> C directly */
599 binding_2 = g_object_bind_property (a, "foo", c, "foo", G_BINDING_BIDIRECTIONAL);
600
601 /* verify the chain is broken */
602 g_object_set (a, "foo", 47, NULL);
603 g_assert_cmpint (a->foo, !=, b->foo);
604 g_assert_cmpint (a->foo, ==, c->foo);
605
606 g_object_unref (a);
607 g_object_unref (b);
608 g_object_unref (c);
609 }
610
611 static void
binding_sync_create(void)612 binding_sync_create (void)
613 {
614 BindingSource *source = g_object_new (binding_source_get_type (),
615 "foo", 42,
616 NULL);
617 BindingTarget *target = g_object_new (binding_target_get_type (),
618 "bar", 47,
619 NULL);
620 GBinding *binding;
621
622 binding = g_object_bind_property (source, "foo",
623 target, "bar",
624 G_BINDING_DEFAULT | G_BINDING_SYNC_CREATE);
625
626 g_assert_cmpint (source->foo, ==, 42);
627 g_assert_cmpint (target->bar, ==, 42);
628
629 g_object_set (source, "foo", 47, NULL);
630 g_assert_cmpint (source->foo, ==, target->bar);
631
632 g_object_unref (binding);
633
634 g_object_set (target, "bar", 49, NULL);
635
636 binding = g_object_bind_property (source, "foo",
637 target, "bar",
638 G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
639 g_assert_cmpint (source->foo, ==, 47);
640 g_assert_cmpint (target->bar, ==, 47);
641
642 g_object_unref (source);
643 g_object_unref (target);
644 }
645
646 static void
binding_invert_boolean(void)647 binding_invert_boolean (void)
648 {
649 BindingSource *source = g_object_new (binding_source_get_type (),
650 "toggle", TRUE,
651 NULL);
652 BindingTarget *target = g_object_new (binding_target_get_type (),
653 "toggle", FALSE,
654 NULL);
655 GBinding *binding;
656
657 binding = g_object_bind_property (source, "toggle",
658 target, "toggle",
659 G_BINDING_BIDIRECTIONAL | G_BINDING_INVERT_BOOLEAN);
660
661 g_assert_true (source->toggle);
662 g_assert_false (target->toggle);
663
664 g_object_set (source, "toggle", FALSE, NULL);
665 g_assert_false (source->toggle);
666 g_assert_true (target->toggle);
667
668 g_object_set (target, "toggle", FALSE, NULL);
669 g_assert_true (source->toggle);
670 g_assert_false (target->toggle);
671
672 g_object_unref (binding);
673 g_object_unref (source);
674 g_object_unref (target);
675 }
676
677 static void
binding_same_object(void)678 binding_same_object (void)
679 {
680 BindingSource *source = g_object_new (binding_source_get_type (),
681 "foo", 100,
682 "bar", 50,
683 NULL);
684 GBinding *binding;
685
686 binding = g_object_bind_property (source, "foo",
687 source, "bar",
688 G_BINDING_BIDIRECTIONAL);
689 g_object_add_weak_pointer (G_OBJECT (binding), (gpointer *) &binding);
690
691 g_object_set (source, "foo", 10, NULL);
692 g_assert_cmpint (source->foo, ==, 10);
693 g_assert_cmpint (source->bar, ==, 10);
694 g_object_set (source, "bar", 30, NULL);
695 g_assert_cmpint (source->foo, ==, 30);
696 g_assert_cmpint (source->bar, ==, 30);
697
698 g_object_unref (source);
699 g_assert_null (binding);
700 }
701
702 static void
binding_unbind(void)703 binding_unbind (void)
704 {
705 BindingSource *source = g_object_new (binding_source_get_type (), NULL);
706 BindingTarget *target = g_object_new (binding_target_get_type (), NULL);
707 GBinding *binding;
708
709 binding = g_object_bind_property (source, "foo",
710 target, "bar",
711 G_BINDING_DEFAULT);
712 g_object_add_weak_pointer (G_OBJECT (binding), (gpointer *) &binding);
713
714 g_object_set (source, "foo", 42, NULL);
715 g_assert_cmpint (source->foo, ==, target->bar);
716
717 g_object_set (target, "bar", 47, NULL);
718 g_assert_cmpint (source->foo, !=, target->bar);
719
720 g_binding_unbind (binding);
721 g_assert_null (binding);
722
723 g_object_set (source, "foo", 0, NULL);
724 g_assert_cmpint (source->foo, !=, target->bar);
725
726 g_object_unref (source);
727 g_object_unref (target);
728
729
730 /* g_binding_unbind() has a special case for this */
731 source = g_object_new (binding_source_get_type (), NULL);
732 binding = g_object_bind_property (source, "foo",
733 source, "bar",
734 G_BINDING_DEFAULT);
735 g_object_add_weak_pointer (G_OBJECT (binding), (gpointer *) &binding);
736
737 g_binding_unbind (binding);
738 g_assert_null (binding);
739
740 g_object_unref (source);
741 }
742
743 /* When source or target die, so does the binding if there is no other ref */
744 static void
binding_unbind_weak(void)745 binding_unbind_weak (void)
746 {
747 GBinding *binding;
748 BindingSource *source;
749 BindingTarget *target;
750
751 /* first source, then target */
752 source = g_object_new (binding_source_get_type (), NULL);
753 target = g_object_new (binding_target_get_type (), NULL);
754 binding = g_object_bind_property (source, "foo",
755 target, "bar",
756 G_BINDING_DEFAULT);
757 g_object_add_weak_pointer (G_OBJECT (binding), (gpointer *) &binding);
758 g_assert_nonnull (binding);
759 g_object_unref (source);
760 g_assert_null (binding);
761 g_object_unref (target);
762 g_assert_null (binding);
763
764 /* first target, then source */
765 source = g_object_new (binding_source_get_type (), NULL);
766 target = g_object_new (binding_target_get_type (), NULL);
767 binding = g_object_bind_property (source, "foo",
768 target, "bar",
769 G_BINDING_DEFAULT);
770 g_object_add_weak_pointer (G_OBJECT (binding), (gpointer *) &binding);
771 g_assert_nonnull (binding);
772 g_object_unref (target);
773 g_assert_null (binding);
774 g_object_unref (source);
775 g_assert_null (binding);
776
777 /* target and source are the same */
778 source = g_object_new (binding_source_get_type (), NULL);
779 binding = g_object_bind_property (source, "foo",
780 source, "bar",
781 G_BINDING_DEFAULT);
782 g_object_add_weak_pointer (G_OBJECT (binding), (gpointer *) &binding);
783 g_assert_nonnull (binding);
784 g_object_unref (source);
785 g_assert_null (binding);
786 }
787
788 /* Test that every call to unbind() after the first is a noop */
789 static void
binding_unbind_multiple(void)790 binding_unbind_multiple (void)
791 {
792 BindingSource *source = g_object_new (binding_source_get_type (), NULL);
793 BindingTarget *target = g_object_new (binding_target_get_type (), NULL);
794 GBinding *binding;
795 guint i;
796
797 g_test_bug ("1373");
798
799 binding = g_object_bind_property (source, "foo",
800 target, "bar",
801 G_BINDING_DEFAULT);
802 g_object_ref (binding);
803 g_object_add_weak_pointer (G_OBJECT (binding), (gpointer *) &binding);
804 g_assert_nonnull (binding);
805
806 /* this shouldn't crash */
807 for (i = 0; i < 50; i++)
808 {
809 g_binding_unbind (binding);
810 g_assert_nonnull (binding);
811 }
812
813 g_object_unref (binding);
814 g_assert_null (binding);
815
816 g_object_unref (source);
817 g_object_unref (target);
818 }
819
820 static void
binding_fail(void)821 binding_fail (void)
822 {
823 BindingSource *source = g_object_new (binding_source_get_type (), NULL);
824 BindingTarget *target = g_object_new (binding_target_get_type (), NULL);
825 GBinding *binding;
826
827 /* double -> boolean is not supported */
828 binding = g_object_bind_property (source, "double-value",
829 target, "toggle",
830 G_BINDING_DEFAULT);
831 g_object_add_weak_pointer (G_OBJECT (binding), (gpointer *) &binding);
832
833 g_test_expect_message ("GLib-GObject", G_LOG_LEVEL_WARNING,
834 "*Unable to convert*double*boolean*");
835 g_object_set (source, "double-value", 1.0, NULL);
836 g_test_assert_expected_messages ();
837
838 g_object_unref (source);
839 g_object_unref (target);
840 g_assert_null (binding);
841 }
842
843 static gboolean
transform_to_func(GBinding * binding,const GValue * value_a,GValue * value_b,gpointer user_data)844 transform_to_func (GBinding *binding,
845 const GValue *value_a,
846 GValue *value_b,
847 gpointer user_data)
848 {
849 if (g_value_type_compatible (G_VALUE_TYPE (value_a), G_VALUE_TYPE (value_b)))
850 {
851 g_value_copy (value_a, value_b);
852 return TRUE;
853 }
854
855 if (g_value_type_transformable (G_VALUE_TYPE (value_a), G_VALUE_TYPE (value_b)))
856 {
857 if (g_value_transform (value_a, value_b))
858 return TRUE;
859 }
860
861 return FALSE;
862 }
863
864 static void
binding_interface(void)865 binding_interface (void)
866 {
867 BindingSource *source = g_object_new (binding_source_get_type (), NULL);
868 BindingTarget *target = g_object_new (binding_target_get_type (), NULL);
869 GObject *baa;
870 GBinding *binding;
871 GClosure *transform_to;
872
873 /* binding a generic object property to an interface-valued one */
874 binding = g_object_bind_property (source, "object",
875 target, "foo",
876 G_BINDING_DEFAULT);
877
878 baa = g_object_new (baa_get_type (), NULL);
879 g_object_set (source, "object", baa, NULL);
880 g_object_unref (baa);
881
882 g_binding_unbind (binding);
883
884 /* the same, with a generic marshaller */
885 transform_to = g_cclosure_new (G_CALLBACK (transform_to_func), NULL, NULL);
886 g_closure_set_marshal (transform_to, g_cclosure_marshal_generic);
887 binding = g_object_bind_property_with_closures (source, "object",
888 target, "foo",
889 G_BINDING_DEFAULT,
890 transform_to,
891 NULL);
892
893 baa = g_object_new (baa_get_type (), NULL);
894 g_object_set (source, "object", baa, NULL);
895 g_object_unref (baa);
896
897 g_binding_unbind (binding);
898
899 g_object_unref (source);
900 g_object_unref (target);
901 }
902
903 typedef struct {
904 GThread *thread;
905 GBinding *binding;
906 GMutex *lock;
907 GCond *cond;
908 gboolean *wait;
909 gint *count; /* (atomic) */
910 } ConcurrentUnbindData;
911
912 static gpointer
concurrent_unbind_func(gpointer data)913 concurrent_unbind_func (gpointer data)
914 {
915 ConcurrentUnbindData *unbind_data = data;
916
917 g_mutex_lock (unbind_data->lock);
918 g_atomic_int_inc (unbind_data->count);
919 while (*unbind_data->wait)
920 g_cond_wait (unbind_data->cond, unbind_data->lock);
921 g_mutex_unlock (unbind_data->lock);
922 g_binding_unbind (unbind_data->binding);
923 g_object_unref (unbind_data->binding);
924
925 return NULL;
926 }
927
928 static void
binding_concurrent_unbind(void)929 binding_concurrent_unbind (void)
930 {
931 guint i, j;
932
933 g_test_summary ("Test that unbinding from multiple threads concurrently works correctly");
934
935 for (i = 0; i < 50; i++)
936 {
937 BindingSource *source = g_object_new (binding_source_get_type (), NULL);
938 BindingTarget *target = g_object_new (binding_target_get_type (), NULL);
939 GBinding *binding;
940 GQueue threads = G_QUEUE_INIT;
941 GMutex lock;
942 GCond cond;
943 gboolean wait = TRUE;
944 gint count = 0; /* (atomic) */
945 ConcurrentUnbindData *data;
946
947 g_mutex_init (&lock);
948 g_cond_init (&cond);
949
950 binding = g_object_bind_property (source, "foo",
951 target, "bar",
952 G_BINDING_BIDIRECTIONAL);
953 g_object_ref (binding);
954
955 for (j = 0; j < 10; j++)
956 {
957 data = g_new0 (ConcurrentUnbindData, 1);
958
959 data->binding = g_object_ref (binding);
960 data->lock = &lock;
961 data->cond = &cond;
962 data->wait = &wait;
963 data->count = &count;
964
965 data->thread = g_thread_new ("binding-concurrent", concurrent_unbind_func, data);
966 g_queue_push_tail (&threads, data);
967 }
968
969 /* wait until all threads are started */
970 while (g_atomic_int_get (&count) < 10)
971 g_thread_yield ();
972
973 g_mutex_lock (&lock);
974 wait = FALSE;
975 g_cond_broadcast (&cond);
976 g_mutex_unlock (&lock);
977
978 while ((data = g_queue_pop_head (&threads)))
979 {
980 g_thread_join (data->thread);
981 g_free (data);
982 }
983
984 g_mutex_clear (&lock);
985 g_cond_clear (&cond);
986
987 g_object_unref (binding);
988 g_object_unref (source);
989 g_object_unref (target);
990 }
991 }
992
993 typedef struct {
994 GObject *object;
995 GMutex *lock;
996 GCond *cond;
997 gint *count; /* (atomic) */
998 gboolean *wait;
999 } ConcurrentFinalizeData;
1000
1001 static gpointer
concurrent_finalize_func(gpointer data)1002 concurrent_finalize_func (gpointer data)
1003 {
1004 ConcurrentFinalizeData *finalize_data = data;
1005
1006 g_mutex_lock (finalize_data->lock);
1007 g_atomic_int_inc (finalize_data->count);
1008 while (*finalize_data->wait)
1009 g_cond_wait (finalize_data->cond, finalize_data->lock);
1010 g_mutex_unlock (finalize_data->lock);
1011 g_object_unref (finalize_data->object);
1012 g_free (finalize_data);
1013
1014 return NULL;
1015 }
1016
1017 static void
binding_concurrent_finalizing(void)1018 binding_concurrent_finalizing (void)
1019 {
1020 guint i;
1021
1022 g_test_summary ("Test that finalizing source/target from multiple threads concurrently works correctly");
1023
1024 for (i = 0; i < 50; i++)
1025 {
1026 BindingSource *source = g_object_new (binding_source_get_type (), NULL);
1027 BindingTarget *target = g_object_new (binding_target_get_type (), NULL);
1028 GBinding *binding;
1029 GMutex lock;
1030 GCond cond;
1031 gboolean wait = TRUE;
1032 ConcurrentFinalizeData *data;
1033 GThread *source_thread, *target_thread;
1034 gint count = 0; /* (atomic) */
1035
1036 g_mutex_init (&lock);
1037 g_cond_init (&cond);
1038
1039 binding = g_object_bind_property (source, "foo",
1040 target, "bar",
1041 G_BINDING_BIDIRECTIONAL);
1042 g_object_ref (binding);
1043
1044 data = g_new0 (ConcurrentFinalizeData, 1);
1045 data->object = (GObject *) source;
1046 data->wait = &wait;
1047 data->lock = &lock;
1048 data->cond = &cond;
1049 data->count = &count;
1050 source_thread = g_thread_new ("binding-concurrent", concurrent_finalize_func, data);
1051
1052 data = g_new0 (ConcurrentFinalizeData, 1);
1053 data->object = (GObject *) target;
1054 data->wait = &wait;
1055 data->lock = &lock;
1056 data->cond = &cond;
1057 data->count = &count;
1058 target_thread = g_thread_new ("binding-concurrent", concurrent_finalize_func, data);
1059
1060 /* wait until all threads are started */
1061 while (g_atomic_int_get (&count) < 2)
1062 g_thread_yield ();
1063
1064 g_mutex_lock (&lock);
1065 wait = FALSE;
1066 g_cond_broadcast (&cond);
1067 g_mutex_unlock (&lock);
1068
1069 g_thread_join (source_thread);
1070 g_thread_join (target_thread);
1071
1072 g_mutex_clear (&lock);
1073 g_cond_clear (&cond);
1074
1075 g_object_unref (binding);
1076 }
1077 }
1078
1079 int
main(int argc,char * argv[])1080 main (int argc, char *argv[])
1081 {
1082 g_test_init (&argc, &argv, NULL);
1083
1084 g_test_bug_base ("https://gitlab.gnome.org/GNOME/glib/issues/");
1085
1086 g_test_add_func ("/binding/default", binding_default);
1087 g_test_add_func ("/binding/canonicalisation", binding_canonicalisation);
1088 g_test_add_func ("/binding/bidirectional", binding_bidirectional);
1089 g_test_add_func ("/binding/transform", binding_transform);
1090 g_test_add_func ("/binding/transform-default", binding_transform_default);
1091 g_test_add_func ("/binding/transform-closure", binding_transform_closure);
1092 g_test_add_func ("/binding/chain", binding_chain);
1093 g_test_add_func ("/binding/sync-create", binding_sync_create);
1094 g_test_add_func ("/binding/invert-boolean", binding_invert_boolean);
1095 g_test_add_func ("/binding/same-object", binding_same_object);
1096 g_test_add_func ("/binding/unbind", binding_unbind);
1097 g_test_add_func ("/binding/unbind-weak", binding_unbind_weak);
1098 g_test_add_func ("/binding/unbind-multiple", binding_unbind_multiple);
1099 g_test_add_func ("/binding/fail", binding_fail);
1100 g_test_add_func ("/binding/interface", binding_interface);
1101 g_test_add_func ("/binding/concurrent-unbind", binding_concurrent_unbind);
1102 g_test_add_func ("/binding/concurrent-finalizing", binding_concurrent_finalizing);
1103
1104 return g_test_run ();
1105 }
1106