Cleanup: add wm_utils.c for generic functions

1 files changed, 71 insertions, 0 deletions

diff --git a/source/blender/windowmanager/intern/wm_utils.c b/source/blender/windowmanager/intern/wm_utils.c
new file mode 100644
index 00000000000..c0ee1ec44db
--- /dev/null
+++ b/source/blender/windowmanager/intern/wm_utils.c
@@ -0,0 +1,71 @@
+/*
+ * 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 wm
+ *
+ * Generic helper utilies that aren't assosiated with a particular area.
+ */
+
+#include "WM_types.h"
+#include "WM_api.h"
+
+#include "MEM_guardedalloc.h"
+
+/* -------------------------------------------------------------------- */
+/** \name Generic Callback
+ * \{ */
+
+void WM_generic_callback_free(wmGenericCallback *callback)
+{
+  if (callback->free_user_data) {
+    callback->free_user_data(callback->user_data);
+  }
+  MEM_freeN(callback);
+}
+
+static void do_nothing(struct bContext *UNUSED(C), void *UNUSED(user_data))
+{
+}
+
+wmGenericCallback *WM_generic_callback_steal(wmGenericCallback *callback)
+{
+  wmGenericCallback *new_callback = MEM_dupallocN(callback);
+  callback->exec = do_nothing;
+  callback->free_user_data = NULL;
+  callback->user_data = NULL;
+  return new_callback;
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Generic User Data
+ * \{ */
+
+void WM_generic_user_data_free(wmGenericUserData *wm_userdata)
+{
+  if (wm_userdata->data && wm_userdata->use_free) {
+    if (wm_userdata->free_fn) {
+      wm_userdata->free_fn(wm_userdata->data);
+    }
+    else {
+      MEM_freeN(wm_userdata->data);
+    }
+  }
+}
+
+/** \} */