7 static int _eobj_log_dom = -1;
9 static Eobj_Class **_eobj_classes;
10 static Eobj_Class_Id _eobj_classes_last_id;
11 static Eina_Bool _eobj_init_count = 0;
13 #define CONSTRUCT_ERROR_KEY "__construct_error"
15 static void _eobj_callback_remove_all(Eobj *obj);
16 static void _eobj_generic_data_del_all(Eobj *obj);
17 static void eobj_class_constructor(Eobj *obj, const Eobj_Class *klass);
18 static void eobj_class_destructor(Eobj *obj, const Eobj_Class *klass);
19 static void eobj_constructor_error_unset(Eobj *obj);
24 #define CRITICAL(...) EINA_LOG_DOM_CRIT(_eobj_log_dom, __VA_ARGS__)
29 #define ERR(...) EINA_LOG_DOM_ERR(_eobj_log_dom, __VA_ARGS__)
34 #define WRN(...) EINA_LOG_DOM_WARN(_eobj_log_dom, __VA_ARGS__)
39 #define INF(...) EINA_LOG_DOM_INFO(_eobj_log_dom, __VA_ARGS__)
44 #define DBG(...) EINA_LOG_DOM_DBG(_eobj_log_dom, __VA_ARGS__)
46 typedef struct _Eobj_Callback_Description Eobj_Callback_Description;
50 const Eobj_Class *klass;
53 Eina_List *composite_objects;
55 Eina_Inlist *callbacks;
58 Eina_Inlist *generic_data;
67 /* Dich search, split to 0xff 0xff 0xffff */
69 #define DICH_CHAIN1_MASK (0xff)
70 #define DICH_CHAIN2_MASK (0xff)
71 #define DICH_CHAIN_LAST_MASK (0xffff)
72 #define DICH_CHAIN1_SIZE (DICH_CHAIN1_MASK + 1)
73 #define DICH_CHAIN2_SIZE (DICH_CHAIN2_MASK + 1)
74 #define DICH_CHAIN_LAST_SIZE (DICH_CHAIN_LAST_MASK + 1)
75 #define DICH_CHAIN1(x) (((x) >> 24) & DICH_CHAIN1_MASK)
76 #define DICH_CHAIN2(x) (((x) >> 16) & DICH_CHAIN2_MASK)
77 #define DICH_CHAIN_LAST(x) ((x) & DICH_CHAIN_LAST_MASK)
79 #define OP_CLASS_OFFSET 16
80 #define OP_CLASS_OFFSET_GET(x) (((x) >> OP_CLASS_OFFSET) & 0xffff)
81 #define OP_CLASS_GET(op) ({ \
82 Eobj_Class_Id tmp = OP_CLASS_OFFSET_GET(op); \
83 (Eobj_Class *) ((tmp <= _eobj_classes_last_id) && (tmp > 0)) ? \
84 (_eobj_classes[tmp - 1]) : NULL; \
87 /* Structure of Eobj_Op is:
92 typedef struct _Dich_Chain1 Dich_Chain1;
96 eobj_op_func_type func;
101 op_type_funcs *funcs;
112 const Eobj_Class *klass;
113 } Eobj_Extension_Node;
117 Eobj_Class_Id class_id;
118 const Eobj_Class *parent;
119 const Eobj_Class_Description *desc;
120 Dich_Chain1 chain[DICH_CHAIN1_SIZE];
121 Eina_Inlist *extensions;
123 const Eobj_Class **mro;
125 size_t data_offset; /* < Offset of the data within object data. */
127 Eina_Bool constructed : 1;
130 static inline eobj_op_func_type
131 dich_func_get(const Eobj_Class *klass, Eobj_Op op)
133 const Dich_Chain1 *chain1 = &klass->chain[DICH_CHAIN1(op)];
134 if (!chain1) return NULL;
135 if (!chain1->chain) return NULL;
136 Dich_Chain2 *chain2 = &chain1->chain[DICH_CHAIN2(op)];
137 if (!chain2) return NULL;
138 if (!chain2->funcs) return NULL;
140 /* num_ops is calculated from the class. */
141 const Eobj_Class *op_klass = OP_CLASS_GET(op);
142 if (!op_klass || (DICH_CHAIN_LAST(op) >= op_klass->desc->ops.count))
145 return chain2->funcs[DICH_CHAIN_LAST(op)].func;
149 dich_func_set(Eobj_Class *klass, Eobj_Op op, eobj_op_func_type func)
151 const Eobj_Class *op_klass = OP_CLASS_GET(op);
154 /* Verify op is valid. */
157 /* num_ops is calculated from the class. */
158 num_ops = op_klass->desc->ops.count;
159 if (DICH_CHAIN_LAST(op) >= num_ops)
161 ERR("OP %x is too big for the domain '%s', expected value < %x.",
162 op, op_klass->desc->name, op_klass->desc->ops.count);
167 ERR("OP %x is from an illegal class.", op);
171 Dich_Chain1 *chain1 = &klass->chain[DICH_CHAIN1(op)];
174 klass->chain[DICH_CHAIN1(op)].chain =
176 calloc(DICH_CHAIN2_SIZE, sizeof(*(chain1->chain)));
179 Dich_Chain2 *chain2 = &chain1->chain[DICH_CHAIN2(op)];
182 chain2->funcs = chain1->chain[DICH_CHAIN2(op)].funcs =
183 calloc(num_ops, sizeof(*(chain2->funcs)));
186 chain2->funcs[DICH_CHAIN_LAST(op)].func = func;
190 dich_func_clean_all(Eobj_Class *klass)
193 Dich_Chain1 *chain1 = klass->chain;
195 for (i = 0 ; i < DICH_CHAIN1_SIZE ; i++, chain1++)
198 Dich_Chain2 *chain2 = chain1->chain;
203 for (j = 0 ; j < DICH_CHAIN2_SIZE ; j++, chain2++)
208 chain1->chain = NULL;
218 const Eobj_Class **kls_itr;
221 static inline Eina_Bool
222 _eobj_kls_itr_init(Eobj *obj, Eobj_Op op)
226 Eobj_Kls_Itr_Node *node =
227 EINA_INLIST_CONTAINER_GET(obj->kls_itr, Eobj_Kls_Itr_Node);
236 Eobj_Kls_Itr_Node *node = calloc(1, sizeof(*node));
238 node->kls_itr = obj->klass->mro;
239 obj->kls_itr = eina_inlist_prepend(obj->kls_itr,
240 EINA_INLIST_GET(node));
247 _eobj_kls_itr_end(Eobj *obj, Eobj_Op op)
249 Eobj_Kls_Itr_Node *node =
250 EINA_INLIST_CONTAINER_GET(obj->kls_itr, Eobj_Kls_Itr_Node);
255 obj->kls_itr = eina_inlist_remove(obj->kls_itr, obj->kls_itr);
259 static inline const Eobj_Class *
260 _eobj_kls_itr_get(Eobj *obj)
262 Eobj_Kls_Itr_Node *node =
263 EINA_INLIST_CONTAINER_GET(obj->kls_itr, Eobj_Kls_Itr_Node);
265 return (node) ? *(node->kls_itr) : NULL;
268 static inline const Eobj_Class *
269 _eobj_kls_itr_next(Eobj *obj)
271 Eobj_Kls_Itr_Node *node =
272 EINA_INLIST_CONTAINER_GET(obj->kls_itr, Eobj_Kls_Itr_Node);
273 const Eobj_Class **kls_itr = node->kls_itr;
277 node->kls_itr = kls_itr;
286 static inline Eina_Bool
287 _eobj_kls_itr_reached_end(const Eobj *obj)
289 Eobj_Kls_Itr_Node *node =
290 EINA_INLIST_CONTAINER_GET(obj->kls_itr, Eobj_Kls_Itr_Node);
291 const Eobj_Class **kls_itr = node->kls_itr;
292 return !(*kls_itr && *(kls_itr + 1));
295 static const Eobj_Op_Description *
296 _eobj_op_id_desc_get(Eobj_Op op)
298 const Eobj_Class *klass = OP_CLASS_GET(op);
300 if (!klass || !klass->desc->ops.base_op_id) return NULL;
302 Eobj_Op base_op_id = *klass->desc->ops.base_op_id;
304 const Eobj_Op_Description *desc = klass->desc->ops.descs;
306 for (i = 0 ; i < klass->desc->ops.count ; i++, desc++)
308 if ((base_op_id + desc->sub_op) == op)
316 _eobj_op_internal(Eobj *obj, Eobj_Op op, va_list *p_list)
318 const Eobj_Class *klass;
319 Eina_Bool ret = EINA_FALSE;
322 _itr_init = _eobj_kls_itr_init(obj, op);
323 klass = _eobj_kls_itr_get(obj);
326 eobj_op_func_type func = dich_func_get(klass, op);
330 func(obj, eobj_data_get(obj, klass), p_list);
335 klass = _eobj_kls_itr_next(obj);
338 /* Try composite objects */
342 EINA_LIST_FOREACH(obj->composite_objects, itr, emb_obj)
344 if (_eobj_op_internal(emb_obj, op, p_list))
354 if (_itr_init) _eobj_kls_itr_end(obj, op);
358 static inline Eina_Bool
359 _eobj_ops_internal(Eobj *obj, va_list *p_list)
361 Eina_Bool ret = EINA_TRUE;
364 op = va_arg(*p_list, Eobj_Op);
367 if (!_eobj_op_internal(obj, op, p_list))
369 const Eobj_Op_Description *desc = _eobj_op_id_desc_get(op);
370 const char *_id_name = (desc) ? desc->name : NULL;
371 const Eobj_Class *op_klass = OP_CLASS_GET(op);
372 const char *_dom_name = (op_klass) ? op_klass->desc->name : NULL;
373 ERR("Can't find func for op %x ('%s' of domain '%s') for class '%s'. Aborting.",
374 op, _id_name, _dom_name,
375 obj->klass->desc->name);
379 op = va_arg(*p_list, Eobj_Op);
386 eobj_do_internal(Eobj *obj, ...)
391 va_start(p_list, obj);
392 ret = _eobj_ops_internal(obj, &p_list);
399 eobj_super_do(Eobj *obj, Eobj_Op op, ...)
401 const Eobj_Class *obj_klass;
402 Eina_Bool ret = EINA_TRUE;
405 va_start(p_list, op);
407 /* Advance the kls itr. */
408 obj_klass = _eobj_kls_itr_next(obj);
409 if (!_eobj_op_internal(obj, op, &p_list))
411 const Eobj_Op_Description *desc = _eobj_op_id_desc_get(op);
412 const char *_id_name = (desc) ? desc->name : NULL;
413 const Eobj_Class *op_klass = OP_CLASS_GET(op);
414 const char *_dom_name = (op_klass) ? op_klass->desc->name : NULL;
415 ERR("Can't find func for op %x ('%s' of domain '%s') for class '%s'. Aborting.",
416 op, _id_name, _dom_name,
417 (obj_klass) ? obj_klass->desc->name : NULL);
425 EAPI const Eobj_Class *
426 eobj_class_get(Eobj *obj)
432 eobj_class_name_get(const Eobj_Class *klass)
434 return klass->desc->name;
438 _eobj_class_base_op_init(Eobj_Class *klass)
440 const Eobj_Class_Description *desc = klass->desc;
441 if (!desc || !desc->ops.base_op_id)
444 /* FIXME: Depends on values defined above! */
445 *(desc->ops.base_op_id) = klass->class_id << OP_CLASS_OFFSET;
449 _eobj_class_mro_add(Eina_List *mro, const Eobj_Class *klass)
454 mro = eina_list_append(mro, klass);
457 Eobj_Extension_Node *extn;
458 EINA_INLIST_FOREACH(klass->extensions, extn)
460 mro = _eobj_class_mro_add(mro, extn->klass);
464 mro = _eobj_class_mro_add(mro, klass->parent);
470 _eobj_class_mro_init(Eobj_Class *klass)
472 Eina_List *mro = NULL;
474 DBG("Started creating MRO for class '%s'", klass->desc->name);
475 mro = _eobj_class_mro_add(mro, klass);
478 Eina_List *itr1, *itr2, *itr2n;
480 itr1 = eina_list_last(mro);
483 itr2 = eina_list_prev(itr1);
487 itr2n = eina_list_prev(itr2);
489 if (eina_list_data_get(itr1) == eina_list_data_get(itr2))
491 mro = eina_list_remove_list(mro, itr2);
497 itr1 = eina_list_prev(itr1);
501 /* Copy the mro and free the list. */
503 const Eobj_Class *kls_itr;
504 const Eobj_Class **mro_itr;
505 klass->mro = calloc(sizeof(*klass->mro), eina_list_count(mro) + 1);
507 mro_itr = klass->mro;
509 EINA_LIST_FREE(mro, kls_itr)
511 *(mro_itr++) = kls_itr;
513 DBG("Added '%s' to MRO", kls_itr->desc->name);
518 DBG("Finished creating MRO for class '%s'", klass->desc->name);
522 _eobj_class_constructor(Eobj_Class *klass)
524 if (klass->constructed)
527 klass->constructed = EINA_TRUE;
529 if (klass->desc->class_constructor)
530 klass->desc->class_constructor(klass);
532 _eobj_class_mro_init(klass);
536 eobj_class_funcs_set(Eobj_Class *klass, const Eobj_Op_Func_Description *func_descs)
538 const Eobj_Op_Func_Description *itr;
542 for ( ; itr->op != 0 ; itr++)
544 dich_func_set(klass, itr->op, itr->func);
550 eobj_class_new(const Eobj_Class_Description *desc, const Eobj_Class *parent, ...)
555 va_start(p_list, parent);
557 #define _CLS_NEW_CHECK(x) \
562 ERR("%s can't be NULL! Aborting.", #x); \
568 _CLS_NEW_CHECK(desc);
569 _CLS_NEW_CHECK(desc->name);
571 klass = calloc(1, sizeof(Eobj_Class));
572 klass->parent = parent;
574 /* Handle class extensions */
576 Eobj_Class *extn = NULL;
578 extn = va_arg(p_list, Eobj_Class *);
581 switch (extn->desc->type)
583 case EOBJ_CLASS_TYPE_REGULAR:
584 case EOBJ_CLASS_TYPE_REGULAR_NO_INSTANT:
585 /* Use it like an interface. */
586 case EOBJ_CLASS_TYPE_INTERFACE:
588 case EOBJ_CLASS_TYPE_MIXIN:
590 Eobj_Extension_Node *node = calloc(1, sizeof(*node));
593 eina_inlist_append(klass->extensions,
594 EINA_INLIST_GET(node));
599 extn = va_arg(p_list, Eobj_Class *);
605 /* Handle the inheritance */
608 /* Verify the inheritance is allowed. */
609 switch (klass->desc->type)
611 case EOBJ_CLASS_TYPE_REGULAR:
612 case EOBJ_CLASS_TYPE_REGULAR_NO_INSTANT:
613 if ((klass->parent->desc->type != EOBJ_CLASS_TYPE_REGULAR) &&
614 (klass->parent->desc->type != EOBJ_CLASS_TYPE_REGULAR_NO_INSTANT))
616 /* FIXME: Actually handle it. */
617 ERR("Regular classes ('%s') aren't allowed to inherit from non-regular classes ('%s').", klass->desc->name, klass->parent->desc->name);
621 case EOBJ_CLASS_TYPE_INTERFACE:
622 case EOBJ_CLASS_TYPE_MIXIN:
623 if ((klass->parent->desc->type != EOBJ_CLASS_TYPE_REGULAR) &&
624 (klass->parent->desc->type != EOBJ_CLASS_TYPE_REGULAR_NO_INSTANT))
626 /* FIXME: Actually handle it. */
627 ERR("Non-regular classes ('%s') aren't allowed to inherit from regular classes ('%s').", klass->desc->name, klass->parent->desc->name);
634 /* Update the current offset. */
635 /* FIXME: Make sure this alignment is enough. */
636 klass->data_offset = klass->parent->data_offset +
637 klass->parent->desc->data_size +
639 (klass->parent->desc->data_size % sizeof(void *)));
642 klass->class_id = ++_eobj_classes_last_id;
644 /* FIXME: Handle errors. */
646 tmp = realloc(_eobj_classes, _eobj_classes_last_id * sizeof(*_eobj_classes));
648 _eobj_classes[klass->class_id - 1] = klass;
651 _eobj_class_base_op_init(klass);
653 /* FIXME: Shouldn't be called here - should be called from eobj_add. */
654 _eobj_class_constructor(klass);
661 eobj_class_free(klass);
664 #undef _CLS_NEW_CHECK
667 eobj_class_free(Eobj_Class *klass)
669 if (klass->constructed)
671 if (klass->desc->class_destructor)
672 klass->desc->class_destructor(klass);
674 dich_func_clean_all(klass);
679 Eobj_Extension_Node *extn;
680 EINA_INLIST_FOREACH_SAFE(klass->extensions, itrn, extn)
692 eobj_add(const Eobj_Class *klass, Eobj *parent)
694 if (klass->desc->type != EOBJ_CLASS_TYPE_REGULAR)
696 ERR("Class '%s' is not instantiate-able. Aborting.", klass->desc->name);
700 Eobj *obj = calloc(1, sizeof(*obj));
702 obj->parent = parent;
706 obj->data_blob = calloc(1, klass->data_offset + klass->desc->data_size);
708 _eobj_kls_itr_init(obj, EOBJ_NOOP);
709 eobj_constructor_error_unset(obj);
712 eobj_class_constructor(obj, klass);
714 if (eobj_constructor_error_get(obj))
716 ERR("Type '%s' - One of the object constructors have failed.", klass->desc->name);
720 if (!_eobj_kls_itr_reached_end(obj))
722 ERR("Type '%s' - Not all of the object constructors have been executed.", klass->desc->name);
725 _eobj_kls_itr_end(obj, EOBJ_NOOP);
731 /* Unref twice, once for the ref above, and once for the basic object ref. */
745 eobj_unref(Eobj *obj)
747 if (--(obj->refcount) == 0)
749 const Eobj_Class *klass = eobj_class_get(obj);
750 _eobj_kls_itr_init(obj, EOBJ_NOOP);
751 eobj_constructor_error_unset(obj);
752 eobj_class_destructor(obj, klass);
753 if (eobj_constructor_error_get(obj))
755 ERR("Type '%s' - One of the object destructors have failed.", klass->desc->name);
758 if (!_eobj_kls_itr_reached_end(obj))
760 ERR("Type '%s' - Not all of the object destructors have been executed.", klass->desc->name);
762 _eobj_kls_itr_end(obj, EOBJ_NOOP);
763 /*FIXME: add eobj_class_unref(klass) ? - just to clear the caches. */
765 /* If for some reason it's not empty, clear it. */
768 WRN("Kls_Itr is not empty, possibly a bug, please report. - An error will be reported for each kls_itr in the stack.");
769 Eina_Inlist *nitr = nitr->next;
770 free(EINA_INLIST_CONTAINER_GET(obj->kls_itr, Eobj_Kls_Itr_Node));
774 Eina_List *itr, *itr_n;
776 EINA_LIST_FOREACH_SAFE(obj->composite_objects, itr, itr_n, emb_obj)
778 /* FIXME: Should probably be unref. */
780 obj->composite_objects =
781 eina_list_remove_list(obj->composite_objects, itr);
784 _eobj_callback_remove_all(obj);
787 free(obj->data_blob);
789 _eobj_generic_data_del_all(obj);
796 eobj_ref_get(const Eobj *obj)
798 return obj->refcount;
804 obj->delete = EINA_TRUE;
809 eobj_parent_get(Eobj *obj)
815 eobj_constructor_error_set(Eobj *obj)
817 eobj_generic_data_set(obj, CONSTRUCT_ERROR_KEY, (void *) EINA_TRUE);
821 eobj_constructor_error_unset(Eobj *obj)
823 eobj_generic_data_del(obj, CONSTRUCT_ERROR_KEY);
827 eobj_constructor_error_get(const Eobj *obj)
829 return (intptr_t) eobj_generic_data_get(obj, CONSTRUCT_ERROR_KEY);
833 _eobj_constructor_default(Eobj *obj)
835 eobj_constructor_super(obj);
839 _eobj_destructor_default(Eobj *obj)
841 eobj_destructor_super(obj);
845 eobj_class_constructor(Eobj *obj, const Eobj_Class *klass)
850 if (klass->desc->constructor)
851 klass->desc->constructor(obj, eobj_data_get(obj, klass));
853 _eobj_constructor_default(obj);
857 eobj_class_destructor(Eobj *obj, const Eobj_Class *klass)
862 if (klass->desc->destructor)
863 klass->desc->destructor(obj, eobj_data_get(obj, klass));
865 _eobj_destructor_default(obj);
869 eobj_constructor_super(Eobj *obj)
871 eobj_class_constructor(obj, _eobj_kls_itr_next(obj));
875 eobj_destructor_super(Eobj *obj)
877 eobj_class_destructor(obj, _eobj_kls_itr_next(obj));
881 eobj_data_get(Eobj *obj, const Eobj_Class *klass)
883 /* FIXME: Add a check that this is of the right klass and we don't seg.
884 * Probably just return NULL. */
885 if (klass->desc->data_size > 0)
886 return ((char *) obj->data_blob) + klass->data_offset;
894 Eina_Stringshare *key;
896 } Eobj_Generic_Data_Node;
899 _eobj_generic_data_node_free(Eobj_Generic_Data_Node *node)
901 eina_stringshare_del(node->key);
906 _eobj_generic_data_del_all(Eobj *obj)
909 Eobj_Generic_Data_Node *node;
911 EINA_INLIST_FOREACH_SAFE(obj->generic_data, nnode, node)
913 obj->generic_data = eina_inlist_remove(obj->generic_data,
914 EINA_INLIST_GET(node));
916 _eobj_generic_data_node_free(node);
921 eobj_generic_data_set(Eobj *obj, const char *key, const void *data)
924 Eobj_Generic_Data_Node *node;
926 if (!key) return NULL;
927 if (!data) return NULL;
929 prev_data = eobj_generic_data_del(obj, key);
931 node = malloc(sizeof(Eobj_Generic_Data_Node));
932 node->key = eina_stringshare_add(key);
933 node->data = (void *) data;
934 obj->generic_data = eina_inlist_prepend(obj->generic_data,
935 EINA_INLIST_GET(node));
941 eobj_generic_data_get(const Eobj *obj, const char *key)
943 Eobj_Generic_Data_Node *node;
945 if (!key) return NULL;
947 EINA_INLIST_FOREACH(obj->generic_data, node)
949 if (!strcmp(node->key, key))
951 ((Eobj *) obj)->generic_data =
952 eina_inlist_promote(obj->generic_data, EINA_INLIST_GET(node));
960 eobj_generic_data_del(Eobj *obj, const char *key)
962 Eobj_Generic_Data_Node *node;
964 if (!key) return NULL;
966 EINA_INLIST_FOREACH(obj->generic_data, node)
968 if (!strcmp(node->key, key))
973 obj->generic_data = eina_inlist_remove(obj->generic_data,
974 EINA_INLIST_GET(node));
975 _eobj_generic_data_node_free(node);
985 if (_eobj_init_count++ > 0)
990 _eobj_classes = NULL;
991 _eobj_classes_last_id = 0;
992 _eobj_log_dom = eina_log_domain_register("eobj", EINA_COLOR_LIGHTBLUE);
993 if (_eobj_log_dom < 0)
995 EINA_LOG_ERR("Could not register log domain: eobj");
1006 Eobj_Class **cls_itr = _eobj_classes;
1008 if (--_eobj_init_count > 0)
1011 for (i = 0 ; i < _eobj_classes_last_id ; i++, cls_itr++)
1014 eobj_class_free(*cls_itr);
1018 free(_eobj_classes);
1020 eina_log_domain_unregister(_eobj_log_dom);
1028 eobj_composite_object_attach(Eobj *obj, Eobj *emb_obj)
1031 obj->composite_objects = eina_list_prepend(obj->composite_objects, emb_obj);
1035 eobj_composite_object_detach(Eobj *obj, Eobj *emb_obj)
1037 obj->composite_objects = eina_list_remove(obj->composite_objects, emb_obj);
1038 eobj_unref(emb_obj);
1042 eobj_composite_is(Eobj *emb_obj)
1044 Eobj *obj = eobj_parent_get(emb_obj);
1051 EINA_LIST_FOREACH(obj->composite_objects, itr, tmp)
1061 struct _Eobj_Callback_Description
1064 const Eobj_Event_Description *event;
1067 Eobj_Callback_Priority priority;
1068 Eina_Bool delete_me : 1;
1071 /* Actually remove, doesn't care about walking list, or delete_me */
1073 _eobj_callback_remove(Eobj *obj, Eobj_Callback_Description *cb)
1075 obj->callbacks = eina_inlist_remove(obj->callbacks,
1076 EINA_INLIST_GET(cb));
1080 /* Actually remove, doesn't care about walking list, or delete_me */
1082 _eobj_callback_remove_all(Eobj *obj)
1085 Eobj_Callback_Description *cb;
1086 EINA_INLIST_FOREACH_SAFE(obj->callbacks, initr, cb)
1088 _eobj_callback_remove(obj, cb);
1093 _eobj_callbacks_clear(Eobj *obj)
1096 Eobj_Callback_Description *cb;
1098 /* Abort if we are currently walking the list. */
1099 if (obj->walking_list > 0)
1102 EINA_INLIST_FOREACH_SAFE(obj->callbacks, itn, cb)
1106 _eobj_callback_remove(obj, cb);
1112 _callback_priority_cmp(const void *_a, const void *_b)
1114 const Eobj_Callback_Description *a, *b;
1115 a = (const Eobj_Callback_Description *) _a;
1116 b = (const Eobj_Callback_Description *) _b;
1117 if (a->priority < b->priority)
1124 eobj_event_callback_priority_add(Eobj *obj,
1125 const Eobj_Event_Description *desc,
1126 Eobj_Callback_Priority priority,
1130 Eobj_Callback_Description *cb = calloc(1, sizeof(*cb));
1133 cb->func_data = (void *) data;
1134 cb->priority = priority;
1135 obj->callbacks = eina_inlist_sorted_insert(obj->callbacks,
1136 EINA_INLIST_GET(cb), _callback_priority_cmp);
1138 eobj_event_callback_call(obj, EOBJ_SIG_CALLBACK_ADD, desc);
1144 eobj_event_callback_del(Eobj *obj, const Eobj_Event_Description *desc, Eobj_Event_Cb func)
1147 Eobj_Callback_Description *cb;
1148 EINA_INLIST_FOREACH(obj->callbacks, cb)
1150 if ((cb->event == desc) && (cb->func == func))
1154 data = cb->func_data;
1155 cb->delete_me = EINA_TRUE;
1156 _eobj_callbacks_clear(obj);
1165 eobj_event_callback_call(obj, EOBJ_SIG_CALLBACK_DEL, desc);
1170 eobj_event_callback_del_full(Eobj *obj, const Eobj_Event_Description *desc, Eobj_Event_Cb func, const void *user_data)
1173 Eobj_Callback_Description *cb;
1174 EINA_INLIST_FOREACH(obj->callbacks, cb)
1176 if ((cb->event == desc) && (cb->func == func) &&
1177 (cb->func_data == user_data))
1181 data = cb->func_data;
1182 cb->delete_me = EINA_TRUE;
1183 _eobj_callbacks_clear(obj);
1192 eobj_event_callback_call(obj, EOBJ_SIG_CALLBACK_DEL, desc);
1197 eobj_event_callback_call(Eobj *obj, const Eobj_Event_Description *desc,
1198 const void *event_info)
1200 Eobj_Callback_Description *cb;
1203 obj->walking_list++;
1205 EINA_INLIST_FOREACH(obj->callbacks, cb)
1207 if (!cb->delete_me && (cb->event == desc))
1209 /* Abort callback calling if the func says so. */
1210 if (!cb->func((void *) cb->func_data, obj, desc,
1211 (void *) event_info))
1219 obj->walking_list--;
1220 _eobj_callbacks_clear(obj);
1227 _eobj_event_forwarder_callback(void *data, Eobj *obj, const Eobj_Event_Description *desc, void *event_info)
1230 Eobj *new_obj = (Eobj *) data;
1231 return eobj_event_callback_call(new_obj, desc, event_info);
1234 /* FIXME: Change default priority? Maybe call later? */
1236 eobj_event_callback_forwarder_add(Eobj *obj, const Eobj_Event_Description *desc, Eobj *new_obj)
1238 return eobj_event_callback_add(obj, desc, _eobj_event_forwarder_callback, new_obj);
1242 eobj_event_callback_forwarder_del(Eobj *obj, const Eobj_Event_Description *desc, Eobj *new_obj)
1244 eobj_event_callback_del_full(obj, desc, _eobj_event_forwarder_callback, new_obj);
1248 /* EOBJ_CLASS_BASE stuff */
1249 static Eobj_Class *_my_class = NULL;
1251 /* FIXME: Set proper type descriptions. */
1252 EAPI const Eobj_Event_Description _EOBJ_SIG_CALLBACK_ADD =
1253 EOBJ_EVENT_DESCRIPTION("callback,add", "?", "Called when a callback was added.");
1254 EAPI const Eobj_Event_Description _EOBJ_SIG_CALLBACK_DEL =
1255 EOBJ_EVENT_DESCRIPTION("callback,del", "?", "Called when a callback was deleted.");
1258 _constructor(Eobj *obj, void *class_data __UNUSED__)
1260 DBG("%p - %s.", obj, _my_class->desc->name);
1264 _destructor(Eobj *obj, void *class_data __UNUSED__)
1266 DBG("%p - %s.", obj, _my_class->desc->name);
1269 EAPI const Eobj_Class *
1270 eobj_base_class_get(void)
1272 if (_my_class) return _my_class;
1274 static const Eobj_Class_Description class_desc = {
1276 EOBJ_CLASS_TYPE_REGULAR_NO_INSTANT,
1277 EOBJ_CLASS_DESCRIPTION_OPS(NULL, NULL, 0),
1286 return _my_class = eobj_class_new(&class_desc, NULL, NULL);