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e state - add simple string glob listener callbacks

This commit is contained in:
Carsten Haitzler 2023-02-10 08:47:51 +00:00
parent e5e3750ce1
commit fd3e4a645d
2 changed files with 94 additions and 0 deletions
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91
src/bin/e_state.c
View File

@ -3,7 +3,20 @@
/* public variables */
E_API int E_EVENT_STATE_CHANGE = 0;
/* private stuff */
typedef struct _E_State_Item_Change_Callback
{
const char *glob;
void (*cb) (void *data, E_State_Item item, Eina_Bool del);
void *data;
Eina_Bool delete_me : 1;
} E_State_Item_Change_Callback;
static Eina_Hash *_e_state_items = NULL;
static int _e_state_change_callbacks_walking = 0;
static Eina_Bool _e_state_change_callbacks_need_del= EINA_FALSE;
static Eina_List *_e_state_change_callbacks = NULL;
static void
_state_item_free(void *data)
@ -19,7 +32,35 @@ static void
_state_event_free(void *data EINA_UNUSED, void *ev)
{
E_Event_State *e = ev;
Eina_List *l, *ll;
E_State_Item_Change_Callback *cbit;
_e_state_change_callbacks_walking++;
EINA_LIST_FOREACH(_e_state_change_callbacks, l, cbit)
{
if (eina_fnmatch(cbit->glob, e->item.name, 0))
{
cbit->cb(cbit->data, e->item,
(e->event == E_STATE_DEL) ?
EINA_TRUE : EINA_FALSE);
}
}
_e_state_change_callbacks_walking--;
if ((_e_state_change_callbacks_walking == 0) &&
(_e_state_change_callbacks_need_del))
{
EINA_LIST_FOREACH_SAFE(_e_state_change_callbacks, l, ll, cbit)
{
if (cbit->delete_me)
{
_e_state_change_callbacks =
eina_list_remove_list(_e_state_change_callbacks, l);
eina_stringshare_del(cbit->glob);
free(cbit);
}
}
_e_state_change_callbacks_need_del = EINA_FALSE;
}
if (e->item.name) eina_stringshare_del(e->item.name);
if (e->item.type == E_STATE_STRING) eina_stringshare_del(e->item.val.s);
free(e);
@ -39,10 +80,60 @@ e_state_init(void)
EINTERN int
e_state_shutdown(void)
{
E_State_Item_Change_Callback *cbit;
E_FREE_FUNC(_e_state_items, eina_hash_free);
EINA_LIST_FREE(_e_state_change_callbacks, cbit)
{
eina_stringshare_del(cbit->glob);
free(cbit);
}
return 1;
}
E_API void
e_state_item_change_callback_add(const char *glob, void (*cb) (void *data, E_State_Item item, Eina_Bool del), const void *data)
{
E_State_Item_Change_Callback *cbit = calloc(1, sizeof(E_State_Item_Change_Callback));
if (!cbit) return;
cbit->glob = eina_stringshare_add(glob);
if (!cbit->glob)
{
free(cbit);
return;
}
cbit->cb = cb;
cbit->data = (void *)data;
_e_state_change_callbacks = eina_list_append(_e_state_change_callbacks, cbit);
}
E_API void
e_state_item_change_callback_del(const char *glob, void (*cb) (void *data, E_State_Item item, Eina_Bool del), const void *data)
{
Eina_List *l;
E_State_Item_Change_Callback *cbit;
EINA_LIST_FOREACH(_e_state_change_callbacks, l, cbit)
{
if ((!strcmp(cbit->glob, glob)) &&
(cbit->cb == cb) && (cbit->data == data))
{
if (_e_state_change_callbacks_walking > 0)
{
cbit->delete_me = EINA_TRUE;
_e_state_change_callbacks_need_del = EINA_TRUE;
break;
}
_e_state_change_callbacks =
eina_list_remove_list(_e_state_change_callbacks, l);
eina_stringshare_del(cbit->glob);
free(cbit);
return;
}
}
}
E_API E_State_Item
e_state_item_get(const char *name)
{

3
src/bin/e_state.h
View File

@ -51,6 +51,9 @@ struct _E_Event_State
EINTERN int e_state_init(void);
EINTERN int e_state_shutdown(void);
E_API void e_state_item_change_callback_add(const char *glob, void (*cb) (void *data, E_State_Item item, Eina_Bool del), const void *data);
E_API void e_state_item_change_callback_del(const char *glob, void (*cb) (void *data, E_State_Item item, Eina_Bool del), const void *data);
E_API E_State_Item e_state_item_get(const char *name);
E_API void e_state_item_set(E_State_Item it);