165 lines
5.6 KiB
C
165 lines
5.6 KiB
C
#ifndef EOBJ_H
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#define EOBJ_H
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#include <stdarg.h>
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#include <Eina.h>
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/* Check that the types are castable and cast them. */
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#define EOBJ_TYPECHECK(type, x) \
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({ \
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type __x; \
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__x = x; \
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(void) __x; \
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(type) x; \
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})
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#define EOBJ_ARRAY_SIZE(arr) (sizeof(arr) / sizeof(*arr))
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typedef struct _Eobj Eobj;
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typedef unsigned int Eobj_Op;
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#define EOBJ_NOOP ((Eobj_Op) 0)
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typedef struct _Eobj_Class Eobj_Class;
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typedef int Eobj_Class_Id;
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typedef enum
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{
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EOBJ_CLASS_TYPE_REGULAR = 0,
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EOBJ_CLASS_TYPE_REGULAR_NO_INSTANT,
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EOBJ_CLASS_TYPE_INTERFACE,
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EOBJ_CLASS_TYPE_MIXIN
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} Eobj_Class_Type;
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typedef void (*eobj_op_func_type)(Eobj *, void *class_data, va_list *list);
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typedef struct
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{
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Eobj_Op op;
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eobj_op_func_type func;
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} Eobj_Op_Func_Description;
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#define EOBJ_OP_FUNC_DESCRIPTION(op, func) { op, func }
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#define EOBJ_OP_FUNC_DESCRIPTION_SENTINEL { 0, NULL }
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typedef struct
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{
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const char *name; /**< name used for lookups */
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const char *type; /**< used for introspection purposes, documents what goes as callback event information (@c event_info) */
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const char *doc; /**< documentation for introspection purposes */
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} Eobj_Event_Description;
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typedef struct
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{
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Eobj_Op sub_op;
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const char *name;
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/* FIXME: properly define the type so it'll support get/set and etc.
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* Do I even need/want type? If so, do I need/want it here? docs aren't
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* enough? */
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const char *type;
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const char *doc;
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} Eobj_Op_Description;
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typedef struct
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{
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const char *name;
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Eobj_Class_Type type;
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struct {
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Eobj_Op *base_op_id;
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const Eobj_Op_Description *descs;
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size_t count;
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} ops;
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const Eobj_Event_Description **events;
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size_t data_size;
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void (*constructor)(Eobj *obj, void *class_data);
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void (*destructor)(Eobj *obj, void *class_data);
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void (*class_constructor)(Eobj_Class *klass);
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void (*class_destructor)(Eobj_Class *klass);
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} Eobj_Class_Description;
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#define EOBJ_CLASS_DESCRIPTION_OPS(base_op_id, op_descs, count) { base_op_id, op_descs, count }
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#define EOBJ_OP_DESCRIPTION(op, type, doc) { op, #op, type, doc }
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#define EOBJ_OP_DESCRIPTION_SENTINEL { 0, NULL, NULL, NULL }
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#define EOBJ_EVENT_DESCRIPTION(name, type, doc) { name, type, doc }
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EAPI Eina_Bool eobj_init(void);
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EAPI Eina_Bool eobj_shutdown(void);
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#define eobj_do(object, ...) eobj_do_internal(object, __VA_ARGS__, (Eobj_Op) 0)
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EAPI Eina_Bool eobj_do_internal(Eobj *obj, ...);
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EAPI Eina_Bool eobj_super_do(Eobj *obj, Eobj_Op op, ...);
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EAPI const Eobj_Class *eobj_class_get(Eobj *obj);
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EAPI const char *eobj_class_name_get(const Eobj_Class *klass);
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EAPI void eobj_constructor_super(Eobj *obj);
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EAPI void eobj_destructor_super(Eobj *obj);
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EAPI void eobj_constructor_error_set(Eobj *obj);
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EAPI Eina_Bool eobj_constructor_error_get(const Eobj *obj);
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EAPI Eobj_Class *eobj_class_new(const Eobj_Class_Description *desc, const Eobj_Class *parent, ...);
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/* FIXME: Do I want that exposed? */
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EAPI void eobj_class_free(Eobj_Class *klass);
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EAPI void eobj_class_funcs_set(Eobj_Class *klass, const Eobj_Op_Func_Description *func_descs);
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EAPI Eobj *eobj_add(const Eobj_Class *klass, Eobj *parent);
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EAPI Eobj *eobj_parent_get(Eobj *obj);
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EAPI void *eobj_data_get(Eobj *obj, const Eobj_Class *klass);
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EAPI Eobj *eobj_ref(Eobj *obj);
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EAPI void eobj_unref(Eobj *obj);
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EAPI int eobj_ref_get(const Eobj *obj);
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EAPI void eobj_del(Eobj *obj);
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EAPI void *eobj_generic_data_set(Eobj *obj, const char *key, const void *data);
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EAPI void *eobj_generic_data_get(const Eobj *obj, const char *key);
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EAPI void *eobj_generic_data_del(Eobj *obj, const char *key);
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#define EOBJ_CLASS_BASE eobj_base_class_get()
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EAPI const Eobj_Class *eobj_base_class_get(void) EINA_CONST;
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EAPI void eobj_composite_object_attach(Eobj *obj, Eobj *emb_obj);
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EAPI void eobj_composite_object_detach(Eobj *obj, Eobj *emb_obj);
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EAPI Eina_Bool eobj_composite_is(Eobj *emb_obj);
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/* Events */
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/**
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* @def EOBJ_CALLBACK_PRIORITY_BEFORE
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* Slightly more prioritized than default.
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*/
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#define EOBJ_CALLBACK_PRIORITY_BEFORE -100
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/**
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* @def EOBJ_CALLBACK_PRIORITY_DEFAULT
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* Default callback priority level
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*/
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#define EOBJ_CALLBACK_PRIORITY_DEFAULT 0
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/**
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* @def EOBJ_CALLBACK_PRIORITY_AFTER
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* Slightly less prioritized than default.
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*/
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#define EOBJ_CALLBACK_PRIORITY_AFTER 100
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typedef short Eobj_Callback_Priority;
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/* True meaning continue, False meaning stop callbacks. - Make it an enum? */
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typedef Eina_Bool (*Eobj_Event_Cb)(void *data, Eobj *obj, const Eobj_Event_Description *desc, void *event_info);
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EAPI Eina_Bool eobj_event_callback_forwarder_add(Eobj *obj, const Eobj_Event_Description *desc, Eobj *new_obj);
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EAPI Eina_Bool eobj_event_callback_forwarder_del(Eobj *obj, const Eobj_Event_Description *desc, Eobj *new_obj);
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/* callbacks of the same priority are called in reverse order of creation. */
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EAPI Eina_Bool eobj_event_callback_add(Eobj *obj, const Eobj_Event_Description *desc, Eobj_Event_Cb cb, const void *data);
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EAPI Eina_Bool eobj_event_callback_priority_add(Eobj *obj, const Eobj_Event_Description *desc, Eobj_Callback_Priority priority, Eobj_Event_Cb cb, const void *data);
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EAPI void *eobj_event_callback_del(Eobj *obj, const Eobj_Event_Description *desc, Eobj_Event_Cb func);
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EAPI void *eobj_event_callback_del_full(Eobj *obj, const Eobj_Event_Description *desc, Eobj_Event_Cb func, const void *user_data);
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EAPI Eina_Bool eobj_event_callback_call(Eobj *obj, const Eobj_Event_Description *desc, const void *event_info);
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EAPI extern const Eobj_Event_Description _EOBJ_SIG_CALLBACK_ADD;
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#define EOBJ_SIG_CALLBACK_ADD (&(_EOBJ_SIG_CALLBACK_ADD))
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EAPI extern const Eobj_Event_Description _EOBJ_SIG_CALLBACK_DEL;
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#define EOBJ_SIG_CALLBACK_DEL (&(_EOBJ_SIG_CALLBACK_DEL))
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#endif
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