341 lines
8.3 KiB
C
341 lines
8.3 KiB
C
#include "e.h"
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/* public variables */
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E_API int E_EVENT_STATE_CHANGE = 0;
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/* private stuff */
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typedef struct _E_State_Item_Change_Callback
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{
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const char *glob;
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void (*cb) (void *data, E_State_Item item, Eina_Bool del);
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void *data;
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Eina_Bool delete_me : 1;
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} E_State_Item_Change_Callback;
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static Eina_Hash *_e_state_items = NULL;
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static int _e_state_change_callbacks_walking = 0;
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static Eina_Bool _e_state_change_callbacks_need_del= EINA_FALSE;
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static Eina_List *_e_state_change_callbacks = NULL;
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static void
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_state_item_free(void *data)
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{
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E_State_Item *it = data;
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if (it->name) eina_stringshare_del(it->name);
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if (it->type == E_STATE_STRING) eina_stringshare_del(it->val.s);
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free(data);
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}
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static void
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_state_event_free(void *data EINA_UNUSED, void *ev)
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{
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E_Event_State *e = ev;
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Eina_List *l, *ll;
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E_State_Item_Change_Callback *cbit;
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_e_state_change_callbacks_walking++;
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EINA_LIST_FOREACH(_e_state_change_callbacks, l, cbit)
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{
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if (eina_fnmatch(cbit->glob, e->item.name, 0))
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{
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cbit->cb(cbit->data, e->item,
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(e->event == E_STATE_DEL) ?
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EINA_TRUE : EINA_FALSE);
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}
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}
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_e_state_change_callbacks_walking--;
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if ((_e_state_change_callbacks_walking == 0) &&
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(_e_state_change_callbacks_need_del))
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{
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EINA_LIST_FOREACH_SAFE(_e_state_change_callbacks, l, ll, cbit)
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{
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if (cbit->delete_me)
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{
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_e_state_change_callbacks =
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eina_list_remove_list(_e_state_change_callbacks, l);
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eina_stringshare_del(cbit->glob);
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free(cbit);
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}
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}
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_e_state_change_callbacks_need_del = EINA_FALSE;
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}
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if (e->item.name) eina_stringshare_del(e->item.name);
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if (e->item.type == E_STATE_STRING) eina_stringshare_del(e->item.val.s);
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free(e);
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}
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/* public functions */
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EINTERN int
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e_state_init(void)
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{
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E_EVENT_STATE_CHANGE = ecore_event_type_new();
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_e_state_items = eina_hash_string_superfast_new(_state_item_free);
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return 1;
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}
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EINTERN int
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e_state_shutdown(void)
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{
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E_State_Item_Change_Callback *cbit;
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E_FREE_FUNC(_e_state_items, eina_hash_free);
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EINA_LIST_FREE(_e_state_change_callbacks, cbit)
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{
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eina_stringshare_del(cbit->glob);
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free(cbit);
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}
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return 1;
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}
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E_API void
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e_state_item_change_callback_add(const char *glob, void (*cb) (void *data, E_State_Item item, Eina_Bool del), const void *data)
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{
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E_State_Item_Change_Callback *cbit = calloc(1, sizeof(E_State_Item_Change_Callback));
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if (!cbit) return;
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cbit->glob = eina_stringshare_add(glob);
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if (!cbit->glob)
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{
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free(cbit);
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return;
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}
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cbit->cb = cb;
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cbit->data = (void *)data;
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_e_state_change_callbacks = eina_list_append(_e_state_change_callbacks, cbit);
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}
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E_API void
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e_state_item_change_callback_del(const char *glob, void (*cb) (void *data, E_State_Item item, Eina_Bool del), const void *data)
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{
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Eina_List *l;
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E_State_Item_Change_Callback *cbit;
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EINA_LIST_FOREACH(_e_state_change_callbacks, l, cbit)
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{
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if ((!strcmp(cbit->glob, glob)) &&
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(cbit->cb == cb) && (cbit->data == data))
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{
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if (_e_state_change_callbacks_walking > 0)
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{
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cbit->delete_me = EINA_TRUE;
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_e_state_change_callbacks_need_del = EINA_TRUE;
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break;
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}
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_e_state_change_callbacks =
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eina_list_remove_list(_e_state_change_callbacks, l);
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eina_stringshare_del(cbit->glob);
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free(cbit);
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return;
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}
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}
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}
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E_API E_State_Item
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e_state_item_get(const char *name)
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{
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E_State_Item it = { NULL, E_STATE_UNKNOWN, { 0 } };
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E_State_Item *it2 = eina_hash_find(_e_state_items, name);
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if (it2) it = *it2;
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return it;
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}
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E_API void
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e_state_item_set(E_State_Item it)
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{
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E_State_Item *it2 = eina_hash_find(_e_state_items, it.name);
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Eina_Bool changed = EINA_FALSE;
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if (!it2)
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{
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it2 = calloc(1, sizeof(E_State_Item));
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if (!it2) return;
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it2->name = eina_stringshare_add(it.name);
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eina_hash_add(_e_state_items, it2->name, it2);
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changed = EINA_TRUE;
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}
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if (!changed)
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{
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if (it2->type != it.type) changed = EINA_TRUE;
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}
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if (!changed)
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{
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switch (it2->type)
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{
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case E_STATE_UNKNOWN:
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changed = EINA_TRUE;
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break;
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case E_STATE_BOOL:
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if (it2->val.b != it.val.b) changed = EINA_TRUE;
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break;
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case E_STATE_INT:
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if (it2->val.i != it.val.i) changed = EINA_TRUE;
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break;
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case E_STATE_UINT:
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if (it2->val.u != it.val.u) changed = EINA_TRUE;
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break;
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case E_STATE_DOUBLE:
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if (!EINA_FLT_EQ(it2->val.d, it.val.d)) changed = EINA_TRUE;
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break;
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case E_STATE_STRING:
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if (!((it2->val.s) && (it.val.s) &&
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(!strcmp(it2->val.s, it.val.s))))
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changed = EINA_TRUE;
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break;
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default:
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break;
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}
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}
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if (changed)
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{
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E_Event_State *e;
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if (it2->type == E_STATE_STRING)
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{
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eina_stringshare_del(it2->val.s);
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it2->val.s = NULL;
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}
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it2->type = it.type;
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if (it2->type == E_STATE_STRING)
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it2->val.s = eina_stringshare_add(it.val.s);
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else
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it2->val = it.val;
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e = calloc(1, sizeof(E_Event_State));
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if (e)
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{
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e->event = E_STATE_CHANGE;
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e->item = *it2;
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e->item.name = eina_stringshare_add(e->item.name);
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if (e->item.type == E_STATE_STRING)
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e->item.val.s = eina_stringshare_add(e->item.val.s);
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ecore_event_add(E_EVENT_STATE_CHANGE, e, _state_event_free, NULL);
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}
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}
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}
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E_API void
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e_state_item_del(const char *name)
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{
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E_State_Item *it2 = eina_hash_find(_e_state_items, name);
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if (it2)
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{
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E_Event_State *e = calloc(1, sizeof(E_Event_State));
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if (e)
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{
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e->event = E_STATE_DEL;
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e->item = *it2;
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e->item.name = eina_stringshare_add(e->item.name);
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if (e->item.type == E_STATE_STRING)
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e->item.val.s = eina_stringshare_add(e->item.val.s);
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ecore_event_add(E_EVENT_STATE_CHANGE, e, _state_event_free, NULL);
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}
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eina_hash_del_by_key(_e_state_items, name);
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}
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}
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E_API Eina_Bool
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e_state_item_val_bool_get(const char *name)
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{
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E_State_Item it = e_state_item_get(name);
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if (it.type != E_STATE_BOOL) return EINA_FALSE;
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return it.val.b;
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}
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E_API int
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e_state_item_val_int_get(const char *name)
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{
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E_State_Item it = e_state_item_get(name);
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if (it.type != E_STATE_INT) return 0;
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return it.val.i;
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}
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E_API unsigned int
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e_state_item_val_uint_get(const char *name)
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{
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E_State_Item it = e_state_item_get(name);
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if (it.type != E_STATE_UINT) return 0;
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return it.val.u;
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}
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E_API double
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e_state_item_val_double_get(const char *name)
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{
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E_State_Item it = e_state_item_get(name);
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if (it.type != E_STATE_DOUBLE) return 0.0;
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return it.val.d;
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}
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E_API const char *
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e_state_item_val_string_get(const char *name)
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{
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E_State_Item it = e_state_item_get(name);
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if (it.type != E_STATE_STRING) return NULL;
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return it.val.s;
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}
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E_API void
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e_state_item_val_bool_set(const char *name, Eina_Bool b)
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{
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E_State_Item it;
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it.name = name;
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it.type = E_STATE_BOOL;
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it.val.b = b;
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e_state_item_set(it);
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}
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E_API void
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e_state_item_val_int_set(const char *name, int i)
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{
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E_State_Item it;
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it.name = name;
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it.type = E_STATE_INT;
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it.val.i = i;
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e_state_item_set(it);
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}
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E_API void
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e_state_item_val_uint_set(const char *name, unsigned int u)
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{
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E_State_Item it;
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it.name = name;
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it.type = E_STATE_UINT;
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it.val.u = u;
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e_state_item_set(it);
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}
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E_API void
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e_state_item_val_double_set(const char *name, double d)
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{
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E_State_Item it;
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it.name = name;
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it.type = E_STATE_DOUBLE;
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it.val.d = d;
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e_state_item_set(it);
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}
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E_API void
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e_state_item_val_string_set(const char *name, const char *s)
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{
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E_State_Item it;
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it.name = name;
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it.type = E_STATE_STRING;
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it.val.s = s;
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e_state_item_set(it);
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}
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