137 lines
3.0 KiB
C
137 lines
3.0 KiB
C
/*
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* vim:ts=8:sw=3:sts=8:noexpandtab:cino=>5n-3f0^-2{2
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*/
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#include "e.h"
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typedef struct _E_Msg_Event E_Msg_Event;
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struct _E_Msg_Handler
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{
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void (*func) (void *data, const char *name, const char *info, int val, E_Object *obj);
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void *data;
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unsigned char delete_me : 1;
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};
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struct _E_Msg_Event
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{
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const char *name;
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const char *info;
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int val;
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E_Object *obj;
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};
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/* local subsystem functions */
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static int _e_msg_event_cb(void *data, int ev_type, void *ev);
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static void _e_msg_event_free(void *data, void *ev);
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/* local subsystem globals */
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static Evas_List *handlers = NULL;
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static Evas_List *del_handlers = NULL;
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static int processing_handlers = 0;
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static int E_EVENT_MSG = 0;
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static Ecore_Event_Handler *hand = NULL;
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/* externally accessible functions */
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EAPI int
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e_msg_init(void)
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{
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E_EVENT_MSG = ecore_event_type_new();
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hand = ecore_event_handler_add(E_EVENT_MSG, _e_msg_event_cb, NULL);
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return 1;
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}
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EAPI int
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e_msg_shutdown(void)
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{
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while (handlers) e_msg_handler_del(handlers->data);
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E_EVENT_MSG = 0;
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if (hand) ecore_event_handler_del(hand);
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hand = NULL;
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return 1;
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}
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EAPI void
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e_msg_send(const char *name, const char *info, int val, E_Object *obj)
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{
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E_Msg_Event *ev;
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ev = calloc(1, sizeof(E_Msg_Event));
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/* FIXME: probably better todup the strings but merge with a single
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* malloc for the event struct */
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if (name) ev->name = evas_stringshare_add(name);
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if (info) ev->info = evas_stringshare_add(info);
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ev->val = val;
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ev->obj = obj;
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if (ev->obj) e_object_ref(ev->obj);
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ecore_event_add(E_EVENT_MSG, ev, _e_msg_event_free, NULL);
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}
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EAPI E_Msg_Handler *
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e_msg_handler_add(void (*func) (void *data, const char *name, const char *info, int val, E_Object *obj), void *data)
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{
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E_Msg_Handler *emsgh;
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emsgh = calloc(1, sizeof(E_Msg_Handler));
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if (!emsgh) return NULL;
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emsgh->func = func;
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emsgh->data = data;
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handlers = evas_list_append(handlers, emsgh);
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return emsgh;
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}
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EAPI void
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e_msg_handler_del(E_Msg_Handler *emsgh)
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{
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if (processing_handlers > 0)
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{
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emsgh->delete_me = 1;
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del_handlers = evas_list_append(del_handlers, emsgh);
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}
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else
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{
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handlers = evas_list_remove(handlers, emsgh);
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free(emsgh);
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}
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}
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/* local subsystem functions */
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static int
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_e_msg_event_cb(void *data, int ev_type, void *ev)
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{
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E_Msg_Event *e;
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Evas_List *l;
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processing_handlers++;
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e = ev;
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for (l = handlers; l; l = l->next)
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{
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E_Msg_Handler *emsgh;
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emsgh = l->data;
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if (!emsgh->delete_me)
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emsgh->func(emsgh->data, e->name, e->info, e->val, e->obj);
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}
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processing_handlers--;
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if ((processing_handlers == 0) && (del_handlers))
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{
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while (del_handlers)
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{
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e_msg_handler_del(del_handlers->data);
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del_handlers = evas_list_remove_list(del_handlers, del_handlers);
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}
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}
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return 1;
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}
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static void
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_e_msg_event_free(void *data, void *ev)
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{
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E_Msg_Event *e;
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e = ev;
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if (e->name) evas_stringshare_del(e->name);
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if (e->info) evas_stringshare_del(e->info);
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if (e->obj) e_object_unref(e->obj);
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}
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