Undo: replace global access w/ ED_undo_stack_get

While I'd like to avoid using this too much since the operator
system should handle.
It's less trouble than accessing it inline each time.

1 files changed, 14 insertions, 0 deletions

diff --git a/source/blender/editors/undo/ed_undo.c b/source/blender/editors/undo/ed_undo.c
index 691ba066bf9..4f62e38dc0b 100644
--- a/source/blender/editors/undo/ed_undo.c
+++ b/source/blender/editors/undo/ed_undo.c
@@ -42,6 +42,7 @@
 #include "BKE_blender_undo.h"
 #include "BKE_context.h"
 #include "BKE_global.h"
+#include "BKE_main.h"
 #include "BKE_screen.h"
 #include "BKE_undo_system.h"
 
@@ -190,6 +191,19 @@ bool ED_undo_is_valid(const bContext *C, const char *undoname)
 	return BKE_undosys_stack_has_undo(wm->undo_stack, undoname);
 }
 
+/**
+ * Ideally we wont access the stack directly,
+ * this is needed for modes which handle undo themselves (bypassing #ED_undo_push).
+ *
+ * Using global isn't great, this just avoids doing inline,
+ * causing 'BKE_global.h' & 'BKE_main.h' includes.
+ */
+UndoStack *ED_undo_stack_get(void)
+{
+	wmWindowManager *wm = G.main->wm.first;
+	return wm->undo_stack;
+}
+
 /** \} */
 
 /* -------------------------------------------------------------------- */