FIX: move back from root should redo the parent tree

3 files changed, 20 insertions, 3 deletions

diff --git a/src/event_exec.rs b/src/event_exec.rs
index ffd63fd..1238c8d 100644
--- a/src/event_exec.rs
+++ b/src/event_exec.rs
@@ -535,7 +535,7 @@ impl EventAction {
         let tab = status.selected();
         match tab.mode {
             Mode::Normal => tab.move_to_parent()?,
-            Mode::Tree => tab.tree_select_parent(),
+            Mode::Tree => tab.tree_select_parent()?,
             Mode::InputSimple(_) | Mode::InputCompleted(_) => {
                 tab.input.cursor_left();
             }
diff --git a/src/tab.rs b/src/tab.rs
index 400cd85..db5c08c 100644
--- a/src/tab.rs
+++ b/src/tab.rs
@@ -332,8 +332,17 @@ impl Tab {
 
     /// Select the parent of current node.
     /// If we were at the root node, move to the parent and make a new tree.
-    pub fn tree_select_parent(&mut self) {
-        self.tree.select_parent()
+    pub fn tree_select_parent(&mut self) -> Result<()> {
+        if self.tree.is_on_root() {
+            let Some(parent) = self.tree.root_path().parent() else {
+                return Ok(());
+            };
+            self.set_pathcontent(&parent.to_owned())?;
+            self.make_tree(Some(self.path_content.sort_kind.clone()))
+        } else {
+            self.tree.select_parent();
+            Ok(())
+        }
     }
 
     /// Move down 10 times in the tree
diff --git a/src/tree.rs b/src/tree.rs
index 08de5e7..2491314 100644
--- a/src/tree.rs
+++ b/src/tree.rs
@@ -165,6 +165,10 @@ impl Tree {
         }
     }
 
+    pub fn root_path(&self) -> &Path {
+        self.root_path.as_path()
+    }
+
     pub fn selected_path(&self) -> &Path {
         self.selected.as_path()
     }
@@ -185,6 +189,10 @@ impl Tree {
         Ok(self.selected.strip_prefix(&self.root_path)?)
     }
 
+    pub fn is_on_root(&self) -> bool {
+        self.selected == self.root_path
+    }
+
     /// Select next sibling or the next sibling of the parent
     pub fn select_next(&mut self) -> Result<()> {
         log::info!("select_next START {sel}", sel = self.selected.display());