Fix missing undo steps for smooth-view operators

Support pushing undo steps for smooth-view operations that manipulate
the camera. Now V3D_SmoothParams take optional undo arguments.

Used for:

- VIEW3D_OT_view_center_cursor
- VIEW3D_OT_view_center_pick
- VIEW3D_OT_view_orbit
- VIEW3D_OT_view_roll
- VIEW3D_OT_zoom_border

Follow up fix for T92099.

1 files changed, 19 insertions, 9 deletions

diff --git a/source/blender/editors/space_view3d/view3d_utils.c b/source/blender/editors/space_view3d/view3d_utils.c
index 99f8cbc975b..0d88824a784 100644
--- a/source/blender/editors/space_view3d/view3d_utils.c
+++ b/source/blender/editors/space_view3d/view3d_utils.c
@@ -689,6 +689,18 @@ bool ED_view3d_camera_lock_autokey(View3D *v3d,
   return false;
 }
 
+bool ED_view3d_camera_lock_undo_test(const View3D *v3d,
+                                     const RegionView3D *rv3d,
+                                     struct bContext *C)
+{
+  if (ED_view3d_camera_lock_check(v3d, rv3d)) {
+    if (ED_undo_is_memfile_compatible(C)) {
+      return true;
+    }
+  }
+  return false;
+}
+
 /**
  * Create a MEMFILE undo-step for locked camera movement when transforming the view.
  * Edit and texture paint mode don't use MEMFILE undo so undo push is skipped for them.
@@ -699,16 +711,14 @@ bool ED_view3d_camera_lock_autokey(View3D *v3d,
 static bool view3d_camera_lock_undo_ex(
     const char *str, View3D *v3d, RegionView3D *rv3d, struct bContext *C, bool undo_group)
 {
-  if (ED_view3d_camera_lock_check(v3d, rv3d)) {
-    if (ED_undo_is_memfile_compatible(C)) {
-      if (undo_group) {
-        ED_undo_grouped_push(C, str);
-      }
-      else {
-        ED_undo_push(C, str);
-      }
-      return true;
+  if (ED_view3d_camera_lock_undo_test(v3d, rv3d, C)) {
+    if (undo_group) {
+      ED_undo_grouped_push(C, str);
+    }
+    else {
+      ED_undo_push(C, str);
     }
+    return true;
   }
   return false;
 }