Fix: Outliner walk navigation in Data API mode

Because the subtrees in Data API mode are empty for performance reasons,
it was impossible to move through the tree with walk navigation. This
adds an exception to allow walk navigation to expand subtrees in that
mode.

1 files changed, 3 insertions, 6 deletions

diff --git a/source/blender/editors/space_outliner/outliner_select.c b/source/blender/editors/space_outliner/outliner_select.c
index 23aa2979e86..266ea293d43 100644
--- a/source/blender/editors/space_outliner/outliner_select.c
+++ b/source/blender/editors/space_outliner/outliner_select.c
@@ -1647,7 +1647,7 @@ static TreeElement *outliner_walk_left(SpaceOutliner *space_outliner,
   TreeStoreElem *tselem = TREESTORE(te);
 
   if (TSELEM_OPEN(tselem, space_outliner)) {
-    outliner_item_openclose(te, false, toggle_all);
+    outliner_item_openclose(space_outliner, te, false, toggle_all);
   }
   /* Only walk up a level if the element is closed and not toggling expand */
   else if (!toggle_all && te->parent) {
@@ -1667,11 +1667,8 @@ static TreeElement *outliner_walk_right(SpaceOutliner *space_outliner,
   if (!toggle_all && TSELEM_OPEN(tselem, space_outliner) && !BLI_listbase_is_empty(&te->subtree)) {
     te = te->subtree.first;
   }
-  /* Prevent opening leaf elements in the tree.
-   * This cannot be done in `outliner_item_openclose` because the Data API display mode subtrees
-   * are empty unless expanded. */
-  else if (!BLI_listbase_is_empty(&te->subtree)) {
-    outliner_item_openclose(te, true, toggle_all);
+  else {
+    outliner_item_openclose(space_outliner, te, true, toggle_all);
   }
 
   return te;