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commit fd3e4a645d751aea9a92abc10584240644304c7f
Author: Carsten Haitzler <[email protected]>
AuthorDate: Fri Feb 10 08:47:51 2023 +0000
e state - add simple string glob listener callbacks
---
src/bin/e_state.c | 91 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
src/bin/e_state.h | 3 ++
2 files changed, 94 insertions(+)
diff --git a/src/bin/e_state.c b/src/bin/e_state.c
index e66552517..fd65eba31 100644
--- a/src/bin/e_state.c
+++ b/src/bin/e_state.c
@@ -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 = "" *)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)
{
diff --git a/src/bin/e_state.h b/src/bin/e_state.h
index 04e8a4bdd..6ce43e848 100644
--- a/src/bin/e_state.h
+++ b/src/bin/e_state.h
@@ -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);
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