139 lines
3.8 KiB
C++
139 lines
3.8 KiB
C++
/* SPDX-FileCopyrightText: 2023 Blender Authors
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
|
|
/** \file
|
|
* \ingroup bke
|
|
*/
|
|
|
|
#include "BLI_listbase.h"
|
|
|
|
#include "BKE_callbacks.hh"
|
|
|
|
#include "MEM_guardedalloc.h"
|
|
|
|
#include "RNA_access.hh"
|
|
#include "RNA_prototypes.hh"
|
|
|
|
namespace blender {
|
|
|
|
static ListBaseT<bCallbackFuncStore> callback_slots[BKE_CB_EVT_TOT] = {{nullptr}};
|
|
|
|
static bool callbacks_initialized = false;
|
|
|
|
#define ASSERT_CALLBACKS_INITIALIZED() \
|
|
BLI_assert_msg(callbacks_initialized, \
|
|
"Callbacks should be initialized with BKE_callback_global_init() before using " \
|
|
"the callback system.")
|
|
|
|
void BKE_callback_exec(Main *bmain, PointerRNA **pointers, const int pointers_num, eCbEvent evt)
|
|
{
|
|
ASSERT_CALLBACKS_INITIALIZED();
|
|
|
|
/* Use mutable iteration so handlers are able to remove themselves. */
|
|
ListBaseT<bCallbackFuncStore> *lb = &callback_slots[evt];
|
|
for (bCallbackFuncStore &funcstore : lb->items_mutable()) {
|
|
funcstore.func(bmain, pointers, pointers_num, funcstore.arg);
|
|
}
|
|
}
|
|
|
|
void BKE_callback_exec_null(Main *bmain, eCbEvent evt)
|
|
{
|
|
BKE_callback_exec(bmain, nullptr, 0, evt);
|
|
}
|
|
|
|
void BKE_callback_exec_id(Main *bmain, ID *id, eCbEvent evt)
|
|
{
|
|
PointerRNA id_ptr = RNA_id_pointer_create(id);
|
|
|
|
PointerRNA *pointers[1] = {&id_ptr};
|
|
|
|
BKE_callback_exec(bmain, pointers, ARRAY_SIZE(pointers), evt);
|
|
}
|
|
|
|
void BKE_callback_exec_id_depsgraph(Main *bmain, ID *id, Depsgraph *depsgraph, eCbEvent evt)
|
|
{
|
|
PointerRNA id_ptr = RNA_id_pointer_create(id);
|
|
|
|
PointerRNA depsgraph_ptr = RNA_pointer_create_discrete(nullptr, RNA_Depsgraph, depsgraph);
|
|
|
|
PointerRNA *pointers[2] = {&id_ptr, &depsgraph_ptr};
|
|
|
|
BKE_callback_exec(bmain, pointers, ARRAY_SIZE(pointers), evt);
|
|
}
|
|
|
|
void BKE_callback_exec_boolean(Main *bmain, bool value, eCbEvent evt)
|
|
{
|
|
PrimitiveBooleanRNA data = {};
|
|
data.value = value;
|
|
PointerRNA boolean_ptr = RNA_pointer_create_discrete(nullptr, RNA_PrimitiveBoolean, &data);
|
|
|
|
PointerRNA *pointers[1] = {&boolean_ptr};
|
|
|
|
BKE_callback_exec(bmain, pointers, ARRAY_SIZE(pointers), evt);
|
|
}
|
|
|
|
void BKE_callback_exec_string(Main *bmain, const char *str, eCbEvent evt)
|
|
{
|
|
PrimitiveStringRNA data = {nullptr};
|
|
data.value = str;
|
|
PointerRNA str_ptr = RNA_pointer_create_discrete(nullptr, RNA_PrimitiveString, &data);
|
|
|
|
PointerRNA *pointers[1] = {&str_ptr};
|
|
|
|
BKE_callback_exec(bmain, pointers, ARRAY_SIZE(pointers), evt);
|
|
}
|
|
|
|
void BKE_callback_add(bCallbackFuncStore *funcstore, eCbEvent evt)
|
|
{
|
|
ASSERT_CALLBACKS_INITIALIZED();
|
|
ListBaseT<bCallbackFuncStore> *lb = &callback_slots[evt];
|
|
BLI_addtail(lb, funcstore);
|
|
}
|
|
|
|
void BKE_callback_remove(bCallbackFuncStore *funcstore, eCbEvent evt)
|
|
{
|
|
/* The callback may have already been removed by BKE_callback_global_finalize(), for
|
|
* example when removing callbacks in response to a BKE_blender_atexit_register callback
|
|
* function. `BKE_blender_atexit()` runs after `BKE_callback_global_finalize()`. */
|
|
if (!callbacks_initialized) {
|
|
return;
|
|
}
|
|
|
|
ListBaseT<bCallbackFuncStore> *lb = &callback_slots[evt];
|
|
|
|
/* Be noisy about potential programming errors. */
|
|
BLI_assert_msg(BLI_findindex(lb, funcstore) != -1, "To-be-removed callback not found");
|
|
|
|
BLI_remlink(lb, funcstore);
|
|
|
|
if (funcstore->alloc) {
|
|
MEM_delete(funcstore);
|
|
}
|
|
}
|
|
|
|
void BKE_callback_global_init()
|
|
{
|
|
callbacks_initialized = true;
|
|
}
|
|
|
|
void BKE_callback_global_finalize()
|
|
{
|
|
for (int evt_i = 0; evt_i < BKE_CB_EVT_TOT; evt_i++) {
|
|
const eCbEvent evt = eCbEvent(evt_i);
|
|
ListBaseT<bCallbackFuncStore> *lb = &callback_slots[evt];
|
|
bCallbackFuncStore *funcstore;
|
|
bCallbackFuncStore *funcstore_next;
|
|
for (funcstore = static_cast<bCallbackFuncStore *>(lb->first); funcstore;
|
|
funcstore = funcstore_next)
|
|
{
|
|
funcstore_next = funcstore->next;
|
|
BKE_callback_remove(funcstore, evt);
|
|
}
|
|
}
|
|
|
|
callbacks_initialized = false;
|
|
}
|
|
|
|
} // namespace blender
|