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;
193 static const Eobj_Op_Description noop_desc =
194 EOBJ_OP_DESCRIPTION(EOBJ_NOOP, "", "No operation.");
196 static const Eobj_Op_Description *
197 _eobj_op_id_desc_get(Eobj_Op op)
199 const Eobj_Class *klass = OP_CLASS_GET(op);
200 Eobj_Op sub_id = OP_SUB_ID_GET(op);
205 if (klass && (sub_id < klass->desc->ops.count))
206 return klass->desc->ops.descs + sub_id;
212 _eobj_op_id_name_get(Eobj_Op op)
214 const Eobj_Op_Description *desc = _eobj_op_id_desc_get(op);
215 return (desc) ? desc->name : NULL;
222 const Eobj_Class **kls_itr;
225 static inline Eina_Bool
226 _eobj_kls_itr_init(Eobj *obj, Eobj_Op op)
230 Eobj_Kls_Itr_Node *node =
231 EINA_INLIST_CONTAINER_GET(obj->kls_itr, Eobj_Kls_Itr_Node);
240 Eobj_Kls_Itr_Node *node = calloc(1, sizeof(*node));
242 node->kls_itr = obj->klass->mro;
243 obj->kls_itr = eina_inlist_prepend(obj->kls_itr,
244 EINA_INLIST_GET(node));
251 _eobj_kls_itr_end(Eobj *obj, Eobj_Op op)
253 Eobj_Kls_Itr_Node *node =
254 EINA_INLIST_CONTAINER_GET(obj->kls_itr, Eobj_Kls_Itr_Node);
259 obj->kls_itr = eina_inlist_remove(obj->kls_itr, obj->kls_itr);
263 static inline const Eobj_Class *
264 _eobj_kls_itr_get(Eobj *obj)
266 Eobj_Kls_Itr_Node *node =
267 EINA_INLIST_CONTAINER_GET(obj->kls_itr, Eobj_Kls_Itr_Node);
269 return (node) ? *(node->kls_itr) : NULL;
272 static inline const Eobj_Class *
273 _eobj_kls_itr_next(Eobj *obj, Eobj_Op op)
275 Eobj_Kls_Itr_Node *node =
276 EINA_INLIST_CONTAINER_GET(obj->kls_itr, Eobj_Kls_Itr_Node);
278 if (!node || (node->op != op))
280 Eobj_Op node_op = (node) ? node->op : EOBJ_NOOP;
281 ERR("Called with op %d ('%s') while expecting: %d ('%s'). This probaly means you called eobj_*_super functions from a wrong place.",
282 op, _eobj_op_id_name_get(op),
283 node_op, _eobj_op_id_name_get(node_op));
287 const Eobj_Class **kls_itr = node->kls_itr;
291 node->kls_itr = kls_itr;
300 static inline Eina_Bool
301 _eobj_kls_itr_reached_end(const Eobj *obj)
303 Eobj_Kls_Itr_Node *node =
304 EINA_INLIST_CONTAINER_GET(obj->kls_itr, Eobj_Kls_Itr_Node);
305 const Eobj_Class **kls_itr = node->kls_itr;
306 return !(*kls_itr && *(kls_itr + 1));
310 _eobj_op_internal(Eobj *obj, Eobj_Op op, va_list *p_list)
312 const Eobj_Class *klass;
313 Eina_Bool ret = EINA_FALSE;
316 _itr_init = _eobj_kls_itr_init(obj, op);
317 klass = _eobj_kls_itr_get(obj);
320 eobj_op_func_type func = dich_func_get(klass, op);
324 func(obj, eobj_data_get(obj, klass), p_list);
329 klass = _eobj_kls_itr_next(obj, op);
332 /* Try composite objects */
336 EINA_LIST_FOREACH(obj->composite_objects, itr, emb_obj)
338 if (_eobj_op_internal(emb_obj, op, p_list))
348 if (_itr_init) _eobj_kls_itr_end(obj, op);
352 static inline Eina_Bool
353 _eobj_ops_internal(Eobj *obj, va_list *p_list)
355 Eina_Bool ret = EINA_TRUE;
358 op = va_arg(*p_list, Eobj_Op);
361 if (!_eobj_op_internal(obj, op, p_list))
363 const Eobj_Op_Description *desc = _eobj_op_id_desc_get(op);
364 const char *_id_name = (desc) ? desc->name : NULL;
365 const Eobj_Class *op_klass = OP_CLASS_GET(op);
366 const char *_dom_name = (op_klass) ? op_klass->desc->name : NULL;
367 ERR("Can't find func for op %x ('%s' of domain '%s') for class '%s'. Aborting.",
368 op, _id_name, _dom_name,
369 obj->klass->desc->name);
373 op = va_arg(*p_list, Eobj_Op);
380 eobj_do_internal(Eobj *obj, ...)
385 va_start(p_list, obj);
386 ret = _eobj_ops_internal(obj, &p_list);
393 eobj_do_super(Eobj *obj, Eobj_Op op, ...)
395 const Eobj_Class *obj_klass;
396 Eina_Bool ret = EINA_TRUE;
399 /* Advance the kls itr. */
400 obj_klass = _eobj_kls_itr_next(obj, op);
407 va_start(p_list, op);
408 if (!_eobj_op_internal(obj, op, &p_list))
410 const Eobj_Op_Description *desc = _eobj_op_id_desc_get(op);
411 const char *_id_name = (desc) ? desc->name : NULL;
412 const Eobj_Class *op_klass = OP_CLASS_GET(op);
413 const char *_dom_name = (op_klass) ? op_klass->desc->name : NULL;
414 ERR("Can't find func for op %x ('%s' of domain '%s') for class '%s'. Aborting.",
415 op, _id_name, _dom_name,
416 (obj_klass) ? obj_klass->desc->name : NULL);
424 EAPI const Eobj_Class *
425 eobj_class_get(const Eobj *obj)
431 eobj_class_name_get(const Eobj_Class *klass)
433 return klass->desc->name;
437 _eobj_class_base_op_init(Eobj_Class *klass)
439 const Eobj_Class_Description *desc = klass->desc;
440 if (!desc || !desc->ops.base_op_id)
443 /* FIXME: Depends on values defined above! */
444 *(desc->ops.base_op_id) = klass->class_id << OP_CLASS_OFFSET;
448 _eobj_class_mro_add(Eina_List *mro, const Eobj_Class *klass)
453 mro = eina_list_append(mro, klass);
456 Eobj_Extension_Node *extn;
457 EINA_INLIST_FOREACH(klass->extensions, extn)
459 mro = _eobj_class_mro_add(mro, extn->klass);
463 mro = _eobj_class_mro_add(mro, klass->parent);
469 _eobj_class_mro_init(Eobj_Class *klass)
471 Eina_List *mro = NULL;
473 DBG("Started creating MRO for class '%s'", klass->desc->name);
474 mro = _eobj_class_mro_add(mro, klass);
477 Eina_List *itr1, *itr2, *itr2n;
479 itr1 = eina_list_last(mro);
482 itr2 = eina_list_prev(itr1);
486 itr2n = eina_list_prev(itr2);
488 if (eina_list_data_get(itr1) == eina_list_data_get(itr2))
490 mro = eina_list_remove_list(mro, itr2);
496 itr1 = eina_list_prev(itr1);
500 /* Copy the mro and free the list. */
502 const Eobj_Class *kls_itr;
503 const Eobj_Class **mro_itr;
504 klass->mro = calloc(sizeof(*klass->mro), eina_list_count(mro) + 1);
506 mro_itr = klass->mro;
508 EINA_LIST_FREE(mro, kls_itr)
510 *(mro_itr++) = kls_itr;
512 DBG("Added '%s' to MRO", kls_itr->desc->name);
517 DBG("Finished creating MRO for class '%s'", klass->desc->name);
521 _eobj_class_constructor(Eobj_Class *klass)
523 if (klass->constructed)
526 klass->constructed = EINA_TRUE;
528 if (klass->desc->class_constructor)
529 klass->desc->class_constructor(klass);
531 _eobj_class_mro_init(klass);
535 eobj_class_funcs_set(Eobj_Class *klass, const Eobj_Op_Func_Description *func_descs)
537 const Eobj_Op_Func_Description *itr;
541 for ( ; itr->op != 0 ; itr++)
543 dich_func_set(klass, itr->op, itr->func);
549 eobj_class_free(Eobj_Class *klass)
551 if (klass->constructed)
553 if (klass->desc->class_destructor)
554 klass->desc->class_destructor(klass);
556 dich_func_clean_all(klass);
561 Eobj_Extension_Node *extn;
562 EINA_INLIST_FOREACH_SAFE(klass->extensions, itrn, extn)
575 _eobj_class_check_op_descs(const Eobj_Class *klass)
577 const Eobj_Class_Description *desc = klass->desc;
578 const Eobj_Op_Description *itr;
581 if (desc->ops.count > 0)
583 if (!desc->ops.base_op_id)
585 ERR("Class '%s' has a non-zero ops count, but base_id is NULL.",
590 if (!desc->ops.descs)
592 ERR("Class '%s' has a non-zero ops count, but there are no descs.",
598 itr = desc->ops.descs;
599 for (i = 0 ; i < desc->ops.count ; i++, itr++)
601 if (itr->sub_op != i)
605 ERR("Wrong order in Ops description for class '%s'. Expected %d and got %d", desc->name, i, itr->sub_op);
609 ERR("Found too few Ops description for class '%s'. Expected %d descriptions, but found %d.", desc->name, desc->ops.count, i);
615 if (itr && itr->name)
617 ERR("Found extra Ops description for class '%s'. Expected %d descriptions, but found more.", desc->name, desc->ops.count);
624 EAPI const Eobj_Class *
625 eobj_class_new(const Eobj_Class_Description *desc, const Eobj_Class *parent, ...)
630 va_start(p_list, parent);
632 #define _CLS_NEW_CHECK(x) \
637 ERR("%s must not be NULL! Aborting.", #x); \
643 _CLS_NEW_CHECK(desc);
644 _CLS_NEW_CHECK(desc->name);
646 klass = calloc(1, sizeof(Eobj_Class));
647 klass->parent = parent;
649 /* Handle class extensions */
651 Eobj_Class *extn = NULL;
653 extn = va_arg(p_list, Eobj_Class *);
656 switch (extn->desc->type)
658 case EOBJ_CLASS_TYPE_REGULAR:
659 case EOBJ_CLASS_TYPE_REGULAR_NO_INSTANT:
660 /* Use it like an interface. */
661 case EOBJ_CLASS_TYPE_INTERFACE:
663 case EOBJ_CLASS_TYPE_MIXIN:
665 Eobj_Extension_Node *node = calloc(1, sizeof(*node));
668 eina_inlist_append(klass->extensions,
669 EINA_INLIST_GET(node));
674 extn = va_arg(p_list, Eobj_Class *);
680 /* Handle the inheritance */
683 /* Verify the inheritance is allowed. */
684 switch (klass->desc->type)
686 case EOBJ_CLASS_TYPE_REGULAR:
687 case EOBJ_CLASS_TYPE_REGULAR_NO_INSTANT:
688 if ((klass->parent->desc->type != EOBJ_CLASS_TYPE_REGULAR) &&
689 (klass->parent->desc->type != EOBJ_CLASS_TYPE_REGULAR_NO_INSTANT))
691 ERR("Regular classes ('%s') aren't allowed to inherit from non-regular classes ('%s').", klass->desc->name, klass->parent->desc->name);
695 case EOBJ_CLASS_TYPE_INTERFACE:
696 case EOBJ_CLASS_TYPE_MIXIN:
697 if ((klass->parent->desc->type != EOBJ_CLASS_TYPE_INTERFACE) &&
698 (klass->parent->desc->type != EOBJ_CLASS_TYPE_MIXIN))
700 ERR("Non-regular classes ('%s') aren't allowed to inherit from regular classes ('%s').", klass->desc->name, klass->parent->desc->name);
707 /* Update the current offset. */
708 /* FIXME: Make sure this alignment is enough. */
709 klass->data_offset = klass->parent->data_offset +
710 klass->parent->desc->data_size +
712 (klass->parent->desc->data_size % sizeof(void *)));
715 if (!_eobj_class_check_op_descs(klass))
720 klass->class_id = ++_eobj_classes_last_id;
722 /* FIXME: Handle errors. */
724 tmp = realloc(_eobj_classes, _eobj_classes_last_id * sizeof(*_eobj_classes));
726 _eobj_classes[klass->class_id - 1] = klass;
729 _eobj_class_base_op_init(klass);
731 /* FIXME: Shouldn't be called here - should be called from eobj_add. */
732 _eobj_class_constructor(klass);
739 eobj_class_free(klass);
742 #undef _CLS_NEW_CHECK
745 eobj_add(const Eobj_Class *klass, Eobj *parent)
747 if (klass->desc->type != EOBJ_CLASS_TYPE_REGULAR)
749 ERR("Class '%s' is not instantiate-able. Aborting.", klass->desc->name);
753 Eobj *obj = calloc(1, sizeof(*obj));
755 obj->parent = parent;
759 obj->data_blob = calloc(1, klass->data_offset + klass->desc->data_size);
761 _eobj_kls_itr_init(obj, EOBJ_NOOP);
762 eobj_constructor_error_unset(obj);
765 eobj_class_constructor(obj, klass);
767 if (eobj_constructor_error_get(obj))
769 ERR("Type '%s' - One of the object constructors have failed.", klass->desc->name);
773 if (!_eobj_kls_itr_reached_end(obj))
775 ERR("Type '%s' - Not all of the object constructors have been executed.", klass->desc->name);
778 _eobj_kls_itr_end(obj, EOBJ_NOOP);
784 /* Unref twice, once for the ref above, and once for the basic object ref. */
799 eobj_xref_internal(Eobj *obj, const Eobj *ref_obj, const char *file, int line)
804 Eobj_Xref_Node *xref = calloc(1, sizeof(*xref));
805 xref->ref_obj = ref_obj;
809 /* FIXME: Make it sorted. */
810 obj->xrefs = eina_inlist_prepend(obj->xrefs, EINA_INLIST_GET(xref));
821 eobj_xunref(Eobj *obj, const Eobj *ref_obj)
824 Eobj_Xref_Node *xref = NULL;
825 EINA_INLIST_FOREACH(obj->xrefs, xref)
827 if (xref->ref_obj == ref_obj)
833 obj->xrefs = eina_inlist_remove(obj->xrefs, EINA_INLIST_GET(xref));
838 ERR("ref_obj (%p) does not reference obj (%p). Aborting unref.", ref_obj, obj);
855 eobj_unref(Eobj *obj)
857 if (--(obj->refcount) == 0)
859 /* We need that for the event callbacks that may ref/unref. */
864 eobj_event_callback_call(obj, EOBJ_EV_DEL, NULL);
865 obj->delete = EINA_TRUE;
867 eobj_event_callback_call(obj, EOBJ_EV_FREE, NULL);
871 const Eobj_Class *klass = eobj_class_get(obj);
872 _eobj_kls_itr_init(obj, EOBJ_NOOP);
873 eobj_constructor_error_unset(obj);
874 eobj_class_destructor(obj, klass);
875 if (eobj_constructor_error_get(obj))
877 ERR("Type '%s' - One of the object destructors have failed.", klass->desc->name);
880 if (!_eobj_kls_itr_reached_end(obj))
882 ERR("Type '%s' - Not all of the object destructors have been executed.", klass->desc->name);
884 _eobj_kls_itr_end(obj, EOBJ_NOOP);
885 /*FIXME: add eobj_class_unref(klass) ? - just to clear the caches. */
887 /* If for some reason it's not empty, clear it. */
890 WRN("Kls_Itr is not empty, possibly a bug, please report. - An error will be reported for each kls_itr in the stack.");
891 Eina_Inlist *nitr = nitr->next;
892 free(EINA_INLIST_CONTAINER_GET(obj->kls_itr, Eobj_Kls_Itr_Node));
897 /* If for some reason it's not empty, clear it. */
900 WRN("obj->xrefs is not empty, possibly a bug, please report. - An error will be reported for each xref in the stack.");
901 Eina_Inlist *nitr = nitr->next;
902 free(EINA_INLIST_CONTAINER_GET(obj->xrefs, Eobj_Kls_Itr_Node));
907 Eina_List *itr, *itr_n;
909 EINA_LIST_FOREACH_SAFE(obj->composite_objects, itr, itr_n, emb_obj)
911 eobj_composite_object_detach(obj, emb_obj);
914 _eobj_callback_remove_all(obj);
917 free(obj->data_blob);
924 eobj_ref_get(const Eobj *obj)
926 return obj->refcount;
929 /* Weak reference. */
931 _eobj_weak_ref_cb(void *data, Eobj *obj __UNUSED__, const Eobj_Event_Description *desc __UNUSED__, void *event_info __UNUSED__)
933 Eobj_Weak_Ref *wref = data;
940 eobj_weak_ref_new(const Eobj *_obj)
942 Eobj *obj = (Eobj *) _obj;
943 Eobj_Weak_Ref *wref = calloc(1, sizeof(*wref));
945 eobj_event_callback_add(obj, EOBJ_EV_DEL, _eobj_weak_ref_cb, wref);
951 eobj_weak_ref_free(Eobj_Weak_Ref *wref)
955 eobj_event_callback_del_full(wref->obj, EOBJ_EV_DEL, _eobj_weak_ref_cb,
961 /* EOF Weak reference. */
968 eobj_event_callback_call(obj, EOBJ_EV_DEL, NULL);
969 obj->delete = EINA_TRUE;
975 eobj_parent_get(Eobj *obj)
981 eobj_constructor_error_set(Eobj *obj)
983 obj->construct_error = EINA_TRUE;
987 eobj_constructor_error_unset(Eobj *obj)
989 obj->construct_error = EINA_FALSE;
993 eobj_constructor_error_get(const Eobj *obj)
995 return obj->construct_error;
999 _eobj_constructor_default(Eobj *obj)
1001 eobj_constructor_super(obj);
1005 _eobj_destructor_default(Eobj *obj)
1007 eobj_destructor_super(obj);
1011 eobj_class_constructor(Eobj *obj, const Eobj_Class *klass)
1016 if (klass->desc->constructor)
1017 klass->desc->constructor(obj, eobj_data_get(obj, klass));
1019 _eobj_constructor_default(obj);
1023 eobj_class_destructor(Eobj *obj, const Eobj_Class *klass)
1028 if (klass->desc->destructor)
1029 klass->desc->destructor(obj, eobj_data_get(obj, klass));
1031 _eobj_destructor_default(obj);
1035 eobj_constructor_super(Eobj *obj)
1037 eobj_class_constructor(obj, _eobj_kls_itr_next(obj, EOBJ_NOOP));
1041 eobj_destructor_super(Eobj *obj)
1043 eobj_class_destructor(obj, _eobj_kls_itr_next(obj, EOBJ_NOOP));
1047 eobj_data_get(Eobj *obj, const Eobj_Class *klass)
1049 /* FIXME: Add a check that this is of the right klass and we don't seg.
1050 * Probably just return NULL. */
1051 if (klass->desc->data_size > 0)
1052 return ((char *) obj->data_blob) + klass->data_offset;
1060 const char *log_dom = "eobj";
1061 if (_eobj_init_count++ > 0)
1066 _eobj_classes = NULL;
1067 _eobj_classes_last_id = 0;
1068 _eobj_log_dom = eina_log_domain_register(log_dom, EINA_COLOR_LIGHTBLUE);
1069 if (_eobj_log_dom < 0)
1071 EINA_LOG_ERR("Could not register log domain: %s", log_dom);
1082 Eobj_Class **cls_itr = _eobj_classes;
1084 if (--_eobj_init_count > 0)
1087 for (i = 0 ; i < _eobj_classes_last_id ; i++, cls_itr++)
1090 eobj_class_free(*cls_itr);
1094 free(_eobj_classes);
1096 eina_log_domain_unregister(_eobj_log_dom);
1104 eobj_composite_object_attach(Eobj *obj, Eobj *emb_obj)
1106 eobj_xref(emb_obj, obj);
1107 obj->composite_objects = eina_list_prepend(obj->composite_objects, emb_obj);
1111 eobj_composite_object_detach(Eobj *obj, Eobj *emb_obj)
1113 obj->composite_objects = eina_list_remove(obj->composite_objects, emb_obj);
1114 eobj_xunref(emb_obj, obj);
1118 eobj_composite_is(Eobj *emb_obj)
1120 Eobj *obj = eobj_parent_get(emb_obj);
1127 EINA_LIST_FOREACH(obj->composite_objects, itr, tmp)
1137 struct _Eobj_Callback_Description
1140 const Eobj_Event_Description *event;
1143 Eobj_Callback_Priority priority;
1144 Eina_Bool delete_me : 1;
1147 /* Actually remove, doesn't care about walking list, or delete_me */
1149 _eobj_callback_remove(Eobj *obj, Eobj_Callback_Description *cb)
1151 obj->callbacks = eina_inlist_remove(obj->callbacks,
1152 EINA_INLIST_GET(cb));
1156 /* Actually remove, doesn't care about walking list, or delete_me */
1158 _eobj_callback_remove_all(Eobj *obj)
1161 Eobj_Callback_Description *cb;
1162 EINA_INLIST_FOREACH_SAFE(obj->callbacks, initr, cb)
1164 _eobj_callback_remove(obj, cb);
1169 _eobj_callbacks_clear(Eobj *obj)
1172 Eobj_Callback_Description *cb;
1174 /* Abort if we are currently walking the list. */
1175 if (obj->walking_list > 0)
1178 EINA_INLIST_FOREACH_SAFE(obj->callbacks, itn, cb)
1182 _eobj_callback_remove(obj, cb);
1188 _callback_priority_cmp(const void *_a, const void *_b)
1190 const Eobj_Callback_Description *a, *b;
1191 a = (const Eobj_Callback_Description *) _a;
1192 b = (const Eobj_Callback_Description *) _b;
1193 if (a->priority < b->priority)
1200 eobj_event_callback_priority_add(Eobj *obj,
1201 const Eobj_Event_Description *desc,
1202 Eobj_Callback_Priority priority,
1206 Eobj_Callback_Description *cb = calloc(1, sizeof(*cb));
1209 cb->func_data = (void *) data;
1210 cb->priority = priority;
1211 obj->callbacks = eina_inlist_sorted_insert(obj->callbacks,
1212 EINA_INLIST_GET(cb), _callback_priority_cmp);
1214 eobj_event_callback_call(obj, EOBJ_EV_CALLBACK_ADD, desc);
1220 eobj_event_callback_del(Eobj *obj, const Eobj_Event_Description *desc, Eobj_Event_Cb func)
1223 Eobj_Callback_Description *cb;
1224 EINA_INLIST_FOREACH(obj->callbacks, cb)
1226 if ((cb->event == desc) && (cb->func == func))
1230 data = cb->func_data;
1231 cb->delete_me = EINA_TRUE;
1232 _eobj_callbacks_clear(obj);
1241 eobj_event_callback_call(obj, EOBJ_EV_CALLBACK_DEL, desc);
1246 eobj_event_callback_del_full(Eobj *obj, const Eobj_Event_Description *desc, Eobj_Event_Cb func, const void *user_data)
1249 Eobj_Callback_Description *cb;
1250 EINA_INLIST_FOREACH(obj->callbacks, cb)
1252 if ((cb->event == desc) && (cb->func == func) &&
1253 (cb->func_data == user_data))
1257 data = cb->func_data;
1258 cb->delete_me = EINA_TRUE;
1259 _eobj_callbacks_clear(obj);
1268 eobj_event_callback_call(obj, EOBJ_EV_CALLBACK_DEL, desc);
1273 eobj_event_callback_call(Eobj *obj, const Eobj_Event_Description *desc,
1274 const void *event_info)
1276 Eina_Bool ret = EINA_TRUE;
1277 Eobj_Callback_Description *cb;
1280 obj->walking_list++;
1282 EINA_INLIST_FOREACH(obj->callbacks, cb)
1284 if (!cb->delete_me && (cb->event == desc))
1286 /* Abort callback calling if the func says so. */
1287 if (!cb->func((void *) cb->func_data, obj, desc,
1288 (void *) event_info))
1297 obj->walking_list--;
1298 _eobj_callbacks_clear(obj);
1305 _eobj_event_forwarder_callback(void *data, Eobj *obj, const Eobj_Event_Description *desc, void *event_info)
1308 Eobj *new_obj = (Eobj *) data;
1309 return eobj_event_callback_call(new_obj, desc, event_info);
1312 /* FIXME: Change default priority? Maybe call later? */
1314 eobj_event_callback_forwarder_add(Eobj *obj, const Eobj_Event_Description *desc, Eobj *new_obj)
1316 return eobj_event_callback_add(obj, desc, _eobj_event_forwarder_callback, new_obj);
1320 eobj_event_callback_forwarder_del(Eobj *obj, const Eobj_Event_Description *desc, Eobj *new_obj)
1322 eobj_event_callback_del_full(obj, desc, _eobj_event_forwarder_callback, new_obj);