Move callbacks API from BLI to BKE

Preparing for the bigger changes which will be related on passing
dependency graph to various callbacks which need it.

Differential Revision: https://developer.blender.org/D5725

1 files changed, 67 insertions, 0 deletions

diff --git a/source/blender/blenkernel/intern/callbacks.c b/source/blender/blenkernel/intern/callbacks.c
new file mode 100644
index 00000000000..cbecba2efe1
--- /dev/null
+++ b/source/blender/blenkernel/intern/callbacks.c
@@ -0,0 +1,67 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+/** \file
+ * \ingroup bke
+ */
+
+#include "BLI_utildefines.h"
+#include "BLI_listbase.h"
+
+#include "BKE_callbacks.h"
+
+#include "MEM_guardedalloc.h"
+
+static ListBase callback_slots[BKE_CB_EVT_TOT] = {{NULL}};
+
+void BKE_callback_exec(struct Main *bmain, struct ID *self, eCbEvent evt)
+{
+  ListBase *lb = &callback_slots[evt];
+  bCallbackFuncStore *funcstore;
+
+  for (funcstore = lb->first; funcstore; funcstore = funcstore->next) {
+    funcstore->func(bmain, self, funcstore->arg);
+  }
+}
+
+void BKE_callback_add(bCallbackFuncStore *funcstore, eCbEvent evt)
+{
+  ListBase *lb = &callback_slots[evt];
+  BLI_addtail(lb, funcstore);
+}
+
+void BKE_callback_global_init(void)
+{
+  /* do nothing */
+}
+
+/* call on application exit */
+void BKE_callback_global_finalize(void)
+{
+  eCbEvent evt;
+  for (evt = 0; evt < BKE_CB_EVT_TOT; evt++) {
+    ListBase *lb = &callback_slots[evt];
+    bCallbackFuncStore *funcstore;
+    bCallbackFuncStore *funcstore_next;
+    for (funcstore = lb->first; funcstore; funcstore = funcstore_next) {
+      funcstore_next = funcstore->next;
+      BLI_remlink(lb, funcstore);
+      if (funcstore->alloc) {
+        MEM_freeN(funcstore);
+      }
+    }
+  }
+}