right key open directory, left key gets back (when input is empty)

Fix #179

1 files changed, 18 insertions, 0 deletions

diff --git a/src/browser_states.rs b/src/browser_states.rs
index 1181ee3..3dd0af3 100644
--- a/src/browser_states.rs
+++ b/src/browser_states.rs
@@ -166,6 +166,24 @@ impl BrowserState {
         }
     }
 
+    pub fn go_to_parent(
+        &mut self,
+        screen: &mut Screen,
+    ) -> AppStateCmdResult {
+        match &self.displayed_tree().selected_line().path.parent() {
+            Some(path) => AppStateCmdResult::from_optional_state(
+                BrowserState::new(
+                    path.to_path_buf(),
+                    self.displayed_tree().options.without_pattern(),
+                    screen,
+                    &Dam::unlimited(),
+                ),
+                Command::new(),
+            ),
+            None => AppStateCmdResult::DisplayError("no parent found".to_string()),
+        }
+    }
+
     fn normal_status_message(&self, has_pattern: bool) -> Composite<'static> {
         let tree = self.displayed_tree();
         if tree.selection == 0 {