4 #include "eobj_private.h"
8 typedef int Eobj_Class_Id;
10 int _eobj_log_dom = -1;
12 static Eobj_Class **_eobj_classes;
13 static Eobj_Class_Id _eobj_classes_last_id;
14 static Eina_Bool _eobj_init_count = 0;
16 static void _eobj_callback_remove_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);
21 typedef struct _Eobj_Callback_Description Eobj_Callback_Description;
26 const Eobj_Class *klass;
33 Eina_List *composite_objects;
35 Eina_Inlist *callbacks;
41 Eina_Bool construct_error:1;
45 /* Dich search, split to 0xff 0xff 0xffff */
47 #define DICH_CHAIN1_MASK (0xff)
48 #define DICH_CHAIN2_MASK (0xff)
49 #define DICH_CHAIN_LAST_MASK (0xffff)
50 #define DICH_CHAIN1_SIZE (DICH_CHAIN1_MASK + 1)
51 #define DICH_CHAIN2_SIZE (DICH_CHAIN2_MASK + 1)
52 #define DICH_CHAIN_LAST_SIZE (DICH_CHAIN_LAST_MASK + 1)
53 #define DICH_CHAIN1(x) (((x) >> 24) & DICH_CHAIN1_MASK)
54 #define DICH_CHAIN2(x) (((x) >> 16) & DICH_CHAIN2_MASK)
55 #define DICH_CHAIN_LAST(x) ((x) & DICH_CHAIN_LAST_MASK)
57 #define OP_CLASS_OFFSET 16
58 #define OP_CLASS_OFFSET_GET(x) (((x) >> OP_CLASS_OFFSET) & 0xffff)
59 #define OP_CLASS_GET(op) ({ \
60 Eobj_Class_Id tmp = OP_CLASS_OFFSET_GET(op); \
61 (Eobj_Class *) ((tmp <= _eobj_classes_last_id) && (tmp > 0)) ? \
62 (_eobj_classes[tmp - 1]) : NULL; \
64 #define OP_SUB_ID_GET(op) ((op) & 0xffff)
66 /* Structure of Eobj_Op is:
71 typedef struct _Dich_Chain1 Dich_Chain1;
75 eobj_op_func_type func;
91 const Eobj_Class *klass;
92 } Eobj_Extension_Node;
96 Eobj_Class_Id class_id;
97 const Eobj_Class *parent;
98 const Eobj_Class_Description *desc;
99 Dich_Chain1 chain[DICH_CHAIN1_SIZE];
100 Eina_Inlist *extensions;
102 const Eobj_Class **mro;
104 size_t data_offset; /* < Offset of the data within object data. */
106 Eina_Bool constructed : 1;
109 static inline eobj_op_func_type
110 dich_func_get(const Eobj_Class *klass, Eobj_Op op)
112 const Dich_Chain1 *chain1 = &klass->chain[DICH_CHAIN1(op)];
113 if (!chain1) return NULL;
114 if (!chain1->chain) return NULL;
115 Dich_Chain2 *chain2 = &chain1->chain[DICH_CHAIN2(op)];
116 if (!chain2) return NULL;
117 if (!chain2->funcs) return NULL;
119 /* num_ops is calculated from the class. */
120 const Eobj_Class *op_klass = OP_CLASS_GET(op);
121 if (!op_klass || (DICH_CHAIN_LAST(op) >= op_klass->desc->ops.count))
124 return chain2->funcs[DICH_CHAIN_LAST(op)].func;
128 dich_func_set(Eobj_Class *klass, Eobj_Op op, eobj_op_func_type func)
130 const Eobj_Class *op_klass = OP_CLASS_GET(op);
133 /* Verify op is valid. */
136 /* num_ops is calculated from the class. */
137 num_ops = op_klass->desc->ops.count;
138 if (DICH_CHAIN_LAST(op) >= num_ops)
140 ERR("OP %x is too big for the domain '%s', expected value < %x.",
141 op, op_klass->desc->name, op_klass->desc->ops.count);
146 ERR("OP %x is from an illegal class.", op);
150 Dich_Chain1 *chain1 = &klass->chain[DICH_CHAIN1(op)];
153 klass->chain[DICH_CHAIN1(op)].chain =
155 calloc(DICH_CHAIN2_SIZE, sizeof(*(chain1->chain)));
158 Dich_Chain2 *chain2 = &chain1->chain[DICH_CHAIN2(op)];
161 chain2->funcs = chain1->chain[DICH_CHAIN2(op)].funcs =
162 calloc(num_ops, sizeof(*(chain2->funcs)));
165 chain2->funcs[DICH_CHAIN_LAST(op)].func = func;
169 dich_func_clean_all(Eobj_Class *klass)
172 Dich_Chain1 *chain1 = klass->chain;
174 for (i = 0 ; i < DICH_CHAIN1_SIZE ; i++, chain1++)
177 Dich_Chain2 *chain2 = chain1->chain;
182 for (j = 0 ; j < DICH_CHAIN2_SIZE ; j++, chain2++)
187 chain1->chain = NULL;
197 const Eobj_Class **kls_itr;
200 static inline Eina_Bool
201 _eobj_kls_itr_init(Eobj *obj, Eobj_Op op)
205 Eobj_Kls_Itr_Node *node =
206 EINA_INLIST_CONTAINER_GET(obj->kls_itr, Eobj_Kls_Itr_Node);
215 Eobj_Kls_Itr_Node *node = calloc(1, sizeof(*node));
217 node->kls_itr = obj->klass->mro;
218 obj->kls_itr = eina_inlist_prepend(obj->kls_itr,
219 EINA_INLIST_GET(node));
226 _eobj_kls_itr_end(Eobj *obj, Eobj_Op op)
228 Eobj_Kls_Itr_Node *node =
229 EINA_INLIST_CONTAINER_GET(obj->kls_itr, Eobj_Kls_Itr_Node);
234 obj->kls_itr = eina_inlist_remove(obj->kls_itr, obj->kls_itr);
238 static inline const Eobj_Class *
239 _eobj_kls_itr_get(Eobj *obj)
241 Eobj_Kls_Itr_Node *node =
242 EINA_INLIST_CONTAINER_GET(obj->kls_itr, Eobj_Kls_Itr_Node);
244 return (node) ? *(node->kls_itr) : NULL;
247 static inline const Eobj_Class *
248 _eobj_kls_itr_next(Eobj *obj)
250 Eobj_Kls_Itr_Node *node =
251 EINA_INLIST_CONTAINER_GET(obj->kls_itr, Eobj_Kls_Itr_Node);
252 const Eobj_Class **kls_itr = node->kls_itr;
256 node->kls_itr = kls_itr;
265 static inline Eina_Bool
266 _eobj_kls_itr_reached_end(const Eobj *obj)
268 Eobj_Kls_Itr_Node *node =
269 EINA_INLIST_CONTAINER_GET(obj->kls_itr, Eobj_Kls_Itr_Node);
270 const Eobj_Class **kls_itr = node->kls_itr;
271 return !(*kls_itr && *(kls_itr + 1));
274 static const Eobj_Op_Description *
275 _eobj_op_id_desc_get(Eobj_Op op)
277 const Eobj_Class *klass = OP_CLASS_GET(op);
278 Eobj_Op sub_id = OP_SUB_ID_GET(op);
280 if (klass && (sub_id < klass->desc->ops.count))
281 return klass->desc->ops.descs + sub_id;
287 _eobj_op_internal(Eobj *obj, Eobj_Op op, va_list *p_list)
289 const Eobj_Class *klass;
290 Eina_Bool ret = EINA_FALSE;
293 _itr_init = _eobj_kls_itr_init(obj, op);
294 klass = _eobj_kls_itr_get(obj);
297 eobj_op_func_type func = dich_func_get(klass, op);
301 func(obj, eobj_data_get(obj, klass), p_list);
306 klass = _eobj_kls_itr_next(obj);
309 /* Try composite objects */
313 EINA_LIST_FOREACH(obj->composite_objects, itr, emb_obj)
315 if (_eobj_op_internal(emb_obj, op, p_list))
325 if (_itr_init) _eobj_kls_itr_end(obj, op);
329 static inline Eina_Bool
330 _eobj_ops_internal(Eobj *obj, va_list *p_list)
332 Eina_Bool ret = EINA_TRUE;
335 op = va_arg(*p_list, Eobj_Op);
338 if (!_eobj_op_internal(obj, op, p_list))
340 const Eobj_Op_Description *desc = _eobj_op_id_desc_get(op);
341 const char *_id_name = (desc) ? desc->name : NULL;
342 const Eobj_Class *op_klass = OP_CLASS_GET(op);
343 const char *_dom_name = (op_klass) ? op_klass->desc->name : NULL;
344 ERR("Can't find func for op %x ('%s' of domain '%s') for class '%s'. Aborting.",
345 op, _id_name, _dom_name,
346 obj->klass->desc->name);
350 op = va_arg(*p_list, Eobj_Op);
357 eobj_do_internal(Eobj *obj, ...)
362 va_start(p_list, obj);
363 ret = _eobj_ops_internal(obj, &p_list);
370 eobj_do_super(Eobj *obj, Eobj_Op op, ...)
372 const Eobj_Class *obj_klass;
373 Eina_Bool ret = EINA_TRUE;
376 va_start(p_list, op);
378 /* Advance the kls itr. */
379 obj_klass = _eobj_kls_itr_next(obj);
380 if (!_eobj_op_internal(obj, op, &p_list))
382 const Eobj_Op_Description *desc = _eobj_op_id_desc_get(op);
383 const char *_id_name = (desc) ? desc->name : NULL;
384 const Eobj_Class *op_klass = OP_CLASS_GET(op);
385 const char *_dom_name = (op_klass) ? op_klass->desc->name : NULL;
386 ERR("Can't find func for op %x ('%s' of domain '%s') for class '%s'. Aborting.",
387 op, _id_name, _dom_name,
388 (obj_klass) ? obj_klass->desc->name : NULL);
396 EAPI const Eobj_Class *
397 eobj_class_get(const Eobj *obj)
403 eobj_class_name_get(const Eobj_Class *klass)
405 return klass->desc->name;
409 _eobj_class_base_op_init(Eobj_Class *klass)
411 const Eobj_Class_Description *desc = klass->desc;
412 if (!desc || !desc->ops.base_op_id)
415 /* FIXME: Depends on values defined above! */
416 *(desc->ops.base_op_id) = klass->class_id << OP_CLASS_OFFSET;
420 _eobj_class_mro_add(Eina_List *mro, const Eobj_Class *klass)
425 mro = eina_list_append(mro, klass);
428 Eobj_Extension_Node *extn;
429 EINA_INLIST_FOREACH(klass->extensions, extn)
431 mro = _eobj_class_mro_add(mro, extn->klass);
435 mro = _eobj_class_mro_add(mro, klass->parent);
441 _eobj_class_mro_init(Eobj_Class *klass)
443 Eina_List *mro = NULL;
445 DBG("Started creating MRO for class '%s'", klass->desc->name);
446 mro = _eobj_class_mro_add(mro, klass);
449 Eina_List *itr1, *itr2, *itr2n;
451 itr1 = eina_list_last(mro);
454 itr2 = eina_list_prev(itr1);
458 itr2n = eina_list_prev(itr2);
460 if (eina_list_data_get(itr1) == eina_list_data_get(itr2))
462 mro = eina_list_remove_list(mro, itr2);
468 itr1 = eina_list_prev(itr1);
472 /* Copy the mro and free the list. */
474 const Eobj_Class *kls_itr;
475 const Eobj_Class **mro_itr;
476 klass->mro = calloc(sizeof(*klass->mro), eina_list_count(mro) + 1);
478 mro_itr = klass->mro;
480 EINA_LIST_FREE(mro, kls_itr)
482 *(mro_itr++) = kls_itr;
484 DBG("Added '%s' to MRO", kls_itr->desc->name);
489 DBG("Finished creating MRO for class '%s'", klass->desc->name);
493 _eobj_class_constructor(Eobj_Class *klass)
495 if (klass->constructed)
498 klass->constructed = EINA_TRUE;
500 if (klass->desc->class_constructor)
501 klass->desc->class_constructor(klass);
503 _eobj_class_mro_init(klass);
507 eobj_class_funcs_set(Eobj_Class *klass, const Eobj_Op_Func_Description *func_descs)
509 const Eobj_Op_Func_Description *itr;
513 for ( ; itr->op != 0 ; itr++)
515 dich_func_set(klass, itr->op, itr->func);
521 eobj_class_free(Eobj_Class *klass)
523 if (klass->constructed)
525 if (klass->desc->class_destructor)
526 klass->desc->class_destructor(klass);
528 dich_func_clean_all(klass);
533 Eobj_Extension_Node *extn;
534 EINA_INLIST_FOREACH_SAFE(klass->extensions, itrn, extn)
547 _eobj_class_check_op_descs(const Eobj_Class *klass)
549 const Eobj_Class_Description *desc = klass->desc;
550 const Eobj_Op_Description *itr;
553 if (desc->ops.count > 0)
555 if (!desc->ops.base_op_id)
557 ERR("Class '%s' has a non-zero ops count, but base_id is NULL.",
562 if (!desc->ops.descs)
564 ERR("Class '%s' has a non-zero ops count, but there are no descs.",
570 itr = desc->ops.descs;
571 for (i = 0 ; i < desc->ops.count ; i++, itr++)
573 if (itr->sub_op != i)
577 ERR("Wrong order in Ops description for class '%s'. Expected %d and got %d", desc->name, i, itr->sub_op);
581 ERR("Found too few Ops description for class '%s'. Expected %d descriptions, but found %d.", desc->name, desc->ops.count, i);
587 if (itr && itr->name)
589 ERR("Found extra Ops description for class '%s'. Expected %d descriptions, but found more.", desc->name, desc->ops.count);
596 EAPI const Eobj_Class *
597 eobj_class_new(const Eobj_Class_Description *desc, const Eobj_Class *parent, ...)
602 va_start(p_list, parent);
604 #define _CLS_NEW_CHECK(x) \
609 ERR("%s must not be NULL! Aborting.", #x); \
615 _CLS_NEW_CHECK(desc);
616 _CLS_NEW_CHECK(desc->name);
618 klass = calloc(1, sizeof(Eobj_Class));
619 klass->parent = parent;
621 /* Handle class extensions */
623 Eobj_Class *extn = NULL;
625 extn = va_arg(p_list, Eobj_Class *);
628 switch (extn->desc->type)
630 case EOBJ_CLASS_TYPE_REGULAR:
631 case EOBJ_CLASS_TYPE_REGULAR_NO_INSTANT:
632 /* Use it like an interface. */
633 case EOBJ_CLASS_TYPE_INTERFACE:
635 case EOBJ_CLASS_TYPE_MIXIN:
637 Eobj_Extension_Node *node = calloc(1, sizeof(*node));
640 eina_inlist_append(klass->extensions,
641 EINA_INLIST_GET(node));
646 extn = va_arg(p_list, Eobj_Class *);
652 /* Handle the inheritance */
655 /* Verify the inheritance is allowed. */
656 switch (klass->desc->type)
658 case EOBJ_CLASS_TYPE_REGULAR:
659 case EOBJ_CLASS_TYPE_REGULAR_NO_INSTANT:
660 if ((klass->parent->desc->type != EOBJ_CLASS_TYPE_REGULAR) &&
661 (klass->parent->desc->type != EOBJ_CLASS_TYPE_REGULAR_NO_INSTANT))
663 ERR("Regular classes ('%s') aren't allowed to inherit from non-regular classes ('%s').", klass->desc->name, klass->parent->desc->name);
667 case EOBJ_CLASS_TYPE_INTERFACE:
668 case EOBJ_CLASS_TYPE_MIXIN:
669 if ((klass->parent->desc->type != EOBJ_CLASS_TYPE_INTERFACE) &&
670 (klass->parent->desc->type != EOBJ_CLASS_TYPE_MIXIN))
672 ERR("Non-regular classes ('%s') aren't allowed to inherit from regular classes ('%s').", klass->desc->name, klass->parent->desc->name);
679 /* Update the current offset. */
680 /* FIXME: Make sure this alignment is enough. */
681 klass->data_offset = klass->parent->data_offset +
682 klass->parent->desc->data_size +
684 (klass->parent->desc->data_size % sizeof(void *)));
687 if (!_eobj_class_check_op_descs(klass))
692 klass->class_id = ++_eobj_classes_last_id;
694 /* FIXME: Handle errors. */
696 tmp = realloc(_eobj_classes, _eobj_classes_last_id * sizeof(*_eobj_classes));
698 _eobj_classes[klass->class_id - 1] = klass;
701 _eobj_class_base_op_init(klass);
703 /* FIXME: Shouldn't be called here - should be called from eobj_add. */
704 _eobj_class_constructor(klass);
711 eobj_class_free(klass);
714 #undef _CLS_NEW_CHECK
717 eobj_add(const Eobj_Class *klass, Eobj *parent)
719 if (klass->desc->type != EOBJ_CLASS_TYPE_REGULAR)
721 ERR("Class '%s' is not instantiate-able. Aborting.", klass->desc->name);
725 Eobj *obj = calloc(1, sizeof(*obj));
727 obj->parent = parent;
731 obj->data_blob = calloc(1, klass->data_offset + klass->desc->data_size);
733 _eobj_kls_itr_init(obj, EOBJ_NOOP);
734 eobj_constructor_error_unset(obj);
737 eobj_class_constructor(obj, klass);
739 if (eobj_constructor_error_get(obj))
741 ERR("Type '%s' - One of the object constructors have failed.", klass->desc->name);
745 if (!_eobj_kls_itr_reached_end(obj))
747 ERR("Type '%s' - Not all of the object constructors have been executed.", klass->desc->name);
750 _eobj_kls_itr_end(obj, EOBJ_NOOP);
756 /* Unref twice, once for the ref above, and once for the basic object ref. */
771 eobj_xref_internal(Eobj *obj, const Eobj *ref_obj, const char *file, int line)
776 Eobj_Xref_Node *xref = calloc(1, sizeof(*xref));
777 xref->ref_obj = ref_obj;
781 /* FIXME: Make it sorted. */
782 obj->xrefs = eina_inlist_prepend(obj->xrefs, EINA_INLIST_GET(xref));
793 eobj_xunref(Eobj *obj, const Eobj *ref_obj)
796 Eobj_Xref_Node *xref = NULL;
797 EINA_INLIST_FOREACH(obj->xrefs, xref)
799 if (xref->ref_obj == ref_obj)
805 obj->xrefs = eina_inlist_remove(obj->xrefs, EINA_INLIST_GET(xref));
810 ERR("ref_obj (%p) does not reference obj (%p). Aborting unref.", ref_obj, obj);
827 eobj_unref(Eobj *obj)
829 if (--(obj->refcount) == 0)
831 /* We need that for the event callbacks that may ref/unref. */
836 eobj_event_callback_call(obj, EOBJ_EV_DEL, NULL);
837 obj->delete = EINA_TRUE;
839 eobj_event_callback_call(obj, EOBJ_EV_FREE, NULL);
843 const Eobj_Class *klass = eobj_class_get(obj);
844 _eobj_kls_itr_init(obj, EOBJ_NOOP);
845 eobj_constructor_error_unset(obj);
846 eobj_class_destructor(obj, klass);
847 if (eobj_constructor_error_get(obj))
849 ERR("Type '%s' - One of the object destructors have failed.", klass->desc->name);
852 if (!_eobj_kls_itr_reached_end(obj))
854 ERR("Type '%s' - Not all of the object destructors have been executed.", klass->desc->name);
856 _eobj_kls_itr_end(obj, EOBJ_NOOP);
857 /*FIXME: add eobj_class_unref(klass) ? - just to clear the caches. */
859 /* If for some reason it's not empty, clear it. */
862 WRN("Kls_Itr is not empty, possibly a bug, please report. - An error will be reported for each kls_itr in the stack.");
863 Eina_Inlist *nitr = nitr->next;
864 free(EINA_INLIST_CONTAINER_GET(obj->kls_itr, Eobj_Kls_Itr_Node));
869 /* If for some reason it's not empty, clear it. */
872 WRN("obj->xrefs is not empty, possibly a bug, please report. - An error will be reported for each xref in the stack.");
873 Eina_Inlist *nitr = nitr->next;
874 free(EINA_INLIST_CONTAINER_GET(obj->xrefs, Eobj_Kls_Itr_Node));
879 Eina_List *itr, *itr_n;
881 EINA_LIST_FOREACH_SAFE(obj->composite_objects, itr, itr_n, emb_obj)
883 /* FIXME: Should probably be unref. */
885 obj->composite_objects =
886 eina_list_remove_list(obj->composite_objects, itr);
889 _eobj_callback_remove_all(obj);
892 free(obj->data_blob);
899 eobj_ref_get(const Eobj *obj)
901 return obj->refcount;
904 /* Weak reference. */
906 _eobj_weak_ref_cb(void *data, Eobj *obj __UNUSED__, const Eobj_Event_Description *desc __UNUSED__, void *event_info __UNUSED__)
908 Eobj_Weak_Ref *wref = data;
915 eobj_weak_ref_new(const Eobj *_obj)
917 Eobj *obj = (Eobj *) _obj;
918 Eobj_Weak_Ref *wref = calloc(1, sizeof(*wref));
920 eobj_event_callback_add(obj, EOBJ_EV_DEL, _eobj_weak_ref_cb, wref);
926 eobj_weak_ref_free(Eobj_Weak_Ref *wref)
930 eobj_event_callback_del_full(wref->obj, EOBJ_EV_DEL, _eobj_weak_ref_cb,
936 /* EOF Weak reference. */
943 eobj_event_callback_call(obj, EOBJ_EV_DEL, NULL);
944 obj->delete = EINA_TRUE;
950 eobj_parent_get(Eobj *obj)
956 eobj_constructor_error_set(Eobj *obj)
958 obj->construct_error = EINA_TRUE;
962 eobj_constructor_error_unset(Eobj *obj)
964 obj->construct_error = EINA_FALSE;
968 eobj_constructor_error_get(const Eobj *obj)
970 return obj->construct_error;
974 _eobj_constructor_default(Eobj *obj)
976 eobj_constructor_super(obj);
980 _eobj_destructor_default(Eobj *obj)
982 eobj_destructor_super(obj);
986 eobj_class_constructor(Eobj *obj, const Eobj_Class *klass)
991 if (klass->desc->constructor)
992 klass->desc->constructor(obj, eobj_data_get(obj, klass));
994 _eobj_constructor_default(obj);
998 eobj_class_destructor(Eobj *obj, const Eobj_Class *klass)
1003 if (klass->desc->destructor)
1004 klass->desc->destructor(obj, eobj_data_get(obj, klass));
1006 _eobj_destructor_default(obj);
1010 eobj_constructor_super(Eobj *obj)
1012 eobj_class_constructor(obj, _eobj_kls_itr_next(obj));
1016 eobj_destructor_super(Eobj *obj)
1018 eobj_class_destructor(obj, _eobj_kls_itr_next(obj));
1022 eobj_data_get(Eobj *obj, const Eobj_Class *klass)
1024 /* FIXME: Add a check that this is of the right klass and we don't seg.
1025 * Probably just return NULL. */
1026 if (klass->desc->data_size > 0)
1027 return ((char *) obj->data_blob) + klass->data_offset;
1035 const char *log_dom = "eobj";
1036 if (_eobj_init_count++ > 0)
1041 _eobj_classes = NULL;
1042 _eobj_classes_last_id = 0;
1043 _eobj_log_dom = eina_log_domain_register(log_dom, EINA_COLOR_LIGHTBLUE);
1044 if (_eobj_log_dom < 0)
1046 EINA_LOG_ERR("Could not register log domain: %s", log_dom);
1057 Eobj_Class **cls_itr = _eobj_classes;
1059 if (--_eobj_init_count > 0)
1062 for (i = 0 ; i < _eobj_classes_last_id ; i++, cls_itr++)
1065 eobj_class_free(*cls_itr);
1069 free(_eobj_classes);
1071 eina_log_domain_unregister(_eobj_log_dom);
1079 eobj_composite_object_attach(Eobj *obj, Eobj *emb_obj)
1082 obj->composite_objects = eina_list_prepend(obj->composite_objects, emb_obj);
1086 eobj_composite_object_detach(Eobj *obj, Eobj *emb_obj)
1088 obj->composite_objects = eina_list_remove(obj->composite_objects, emb_obj);
1089 eobj_unref(emb_obj);
1093 eobj_composite_is(Eobj *emb_obj)
1095 Eobj *obj = eobj_parent_get(emb_obj);
1102 EINA_LIST_FOREACH(obj->composite_objects, itr, tmp)
1112 struct _Eobj_Callback_Description
1115 const Eobj_Event_Description *event;
1118 Eobj_Callback_Priority priority;
1119 Eina_Bool delete_me : 1;
1122 /* Actually remove, doesn't care about walking list, or delete_me */
1124 _eobj_callback_remove(Eobj *obj, Eobj_Callback_Description *cb)
1126 obj->callbacks = eina_inlist_remove(obj->callbacks,
1127 EINA_INLIST_GET(cb));
1131 /* Actually remove, doesn't care about walking list, or delete_me */
1133 _eobj_callback_remove_all(Eobj *obj)
1136 Eobj_Callback_Description *cb;
1137 EINA_INLIST_FOREACH_SAFE(obj->callbacks, initr, cb)
1139 _eobj_callback_remove(obj, cb);
1144 _eobj_callbacks_clear(Eobj *obj)
1147 Eobj_Callback_Description *cb;
1149 /* Abort if we are currently walking the list. */
1150 if (obj->walking_list > 0)
1153 EINA_INLIST_FOREACH_SAFE(obj->callbacks, itn, cb)
1157 _eobj_callback_remove(obj, cb);
1163 _callback_priority_cmp(const void *_a, const void *_b)
1165 const Eobj_Callback_Description *a, *b;
1166 a = (const Eobj_Callback_Description *) _a;
1167 b = (const Eobj_Callback_Description *) _b;
1168 if (a->priority < b->priority)
1175 eobj_event_callback_priority_add(Eobj *obj,
1176 const Eobj_Event_Description *desc,
1177 Eobj_Callback_Priority priority,
1181 Eobj_Callback_Description *cb = calloc(1, sizeof(*cb));
1184 cb->func_data = (void *) data;
1185 cb->priority = priority;
1186 obj->callbacks = eina_inlist_sorted_insert(obj->callbacks,
1187 EINA_INLIST_GET(cb), _callback_priority_cmp);
1189 eobj_event_callback_call(obj, EOBJ_EV_CALLBACK_ADD, desc);
1195 eobj_event_callback_del(Eobj *obj, const Eobj_Event_Description *desc, Eobj_Event_Cb func)
1198 Eobj_Callback_Description *cb;
1199 EINA_INLIST_FOREACH(obj->callbacks, cb)
1201 if ((cb->event == desc) && (cb->func == func))
1205 data = cb->func_data;
1206 cb->delete_me = EINA_TRUE;
1207 _eobj_callbacks_clear(obj);
1216 eobj_event_callback_call(obj, EOBJ_EV_CALLBACK_DEL, desc);
1221 eobj_event_callback_del_full(Eobj *obj, const Eobj_Event_Description *desc, Eobj_Event_Cb func, const void *user_data)
1224 Eobj_Callback_Description *cb;
1225 EINA_INLIST_FOREACH(obj->callbacks, cb)
1227 if ((cb->event == desc) && (cb->func == func) &&
1228 (cb->func_data == user_data))
1232 data = cb->func_data;
1233 cb->delete_me = EINA_TRUE;
1234 _eobj_callbacks_clear(obj);
1243 eobj_event_callback_call(obj, EOBJ_EV_CALLBACK_DEL, desc);
1248 eobj_event_callback_call(Eobj *obj, const Eobj_Event_Description *desc,
1249 const void *event_info)
1251 Eina_Bool ret = EINA_TRUE;
1252 Eobj_Callback_Description *cb;
1255 obj->walking_list++;
1257 EINA_INLIST_FOREACH(obj->callbacks, cb)
1259 if (!cb->delete_me && (cb->event == desc))
1261 /* Abort callback calling if the func says so. */
1262 if (!cb->func((void *) cb->func_data, obj, desc,
1263 (void *) event_info))
1272 obj->walking_list--;
1273 _eobj_callbacks_clear(obj);
1280 _eobj_event_forwarder_callback(void *data, Eobj *obj, const Eobj_Event_Description *desc, void *event_info)
1283 Eobj *new_obj = (Eobj *) data;
1284 return eobj_event_callback_call(new_obj, desc, event_info);
1287 /* FIXME: Change default priority? Maybe call later? */
1289 eobj_event_callback_forwarder_add(Eobj *obj, const Eobj_Event_Description *desc, Eobj *new_obj)
1291 return eobj_event_callback_add(obj, desc, _eobj_event_forwarder_callback, new_obj);
1295 eobj_event_callback_forwarder_del(Eobj *obj, const Eobj_Event_Description *desc, Eobj *new_obj)
1297 eobj_event_callback_del_full(obj, desc, _eobj_event_forwarder_callback, new_obj);