Introduce "isExpandable" role

The role is used to determine whether a directory can be expanded at all. This
is e.g. not the case if a directory has 0 items or the target-URL is different
from the item-URL.

The expansion toggle will get hidden if a directory is not expandable.

CCBUG: 288521

1 files changed, 1 insertions, 0 deletions

diff --git a/src/kitemviews/kfileitemlistview.cpp b/src/kitemviews/kfileitemlistview.cpp
index 89fec9d0f..86db28d3d 100644
--- a/src/kitemviews/kfileitemlistview.cpp
+++ b/src/kitemviews/kfileitemlistview.cpp
@@ -586,6 +586,7 @@ void KFileItemListView::applyRolesToModel()
     roles.insert("isDir");
     if (m_itemLayout == DetailsLayout) {
         roles.insert("isExpanded");
+        roles.insert("isExpandable");
         roles.insert("expansionLevel");
     }