feat(explore): rename file/folder

helix-term/src/ui/explore.rs

@@ -233,6 +233,7 @@ enum PromptAction {
     },
     RemoveDir,
     RemoveFile,
+    RenameFile,
     Filter,
 }
 
@@ -289,13 +290,9 @@ impl Explorer {
         }
     }
 
-    pub fn reveal_current_file(&mut self, cx: &mut Context) {
-        let current_document_path = doc!(cx.editor).path().cloned();
-        match current_document_path {
-            None => cx.editor.set_error("No opened document."),
-            Some(current_path) => {
+    fn reveal_file(&mut self, cx: &mut Context, path: PathBuf) {
         let current_root = &self.state.current_root;
-                let current_path = current_path.as_path().to_string_lossy().to_string();
+        let current_path = path.as_path().to_string_lossy().to_string();
         let current_root = current_root.as_path().to_string_lossy().to_string() + "/";
         let segments = current_path
             .strip_prefix(current_root.as_str())
@@ -315,6 +312,12 @@ impl Explorer {
             Err(error) => cx.editor.set_error(error.to_string()),
         }
     }
+
+    pub fn reveal_current_file(&mut self, cx: &mut Context) {
+        let current_document_path = doc!(cx.editor).path().cloned();
+        match current_document_path {
+            None => cx.editor.set_error("No opened document."),
+            Some(current_path) => self.reveal_file(cx, current_path),
         }
     }
 
@@ -467,6 +470,20 @@ impl Explorer {
         }
     }
 
+    fn new_rename_prompt(&mut self) {
+        let name = self.tree.current_item().path.to_string_lossy();
+        self.prompt = Some((
+            PromptAction::RenameFile,
+            Prompt::new(
+                format!(" Rename to ").into(),
+                None,
+                ui::completers::none,
+                |_, _, _| {},
+            )
+            .with_line(name.to_string()),
+        ));
+    }
+
     fn new_remove_file_prompt(&mut self, cx: &mut Context) {
         let item = self.tree.current_item();
         let check = || {
@@ -807,6 +824,15 @@ impl Explorer {
                     }
                 }
             }
+            (PromptAction::RenameFile, key!(Enter)) => {
+                let item = self.tree.current_item();
+                if let Err(e) = std::fs::rename(&item.path, line) {
+                    cx.editor.set_error(format!("{e}"));
+                } else {
+                    self.tree.remove_current();
+                    self.reveal_file(cx, PathBuf::from(line))
+                }
+            }
             (_, key!(Esc) | ctrl!('c')) => {}
             _ => {
                 prompt.handle_event(Event::Key(event), cx);
@@ -907,16 +933,7 @@ impl Component for Explorer {
             }
             key!(']') => self.change_root(cx, self.tree.current_item().path.clone()),
             key!('d') => self.new_remove_prompt(cx),
-            key!('r') => {
-                self.on_next_key = Some(Box::new(|cx, explorer, event| {
-                    match event.into() {
-                        key!('d') => explorer.new_remove_dir_prompt(cx),
-                        key!('f') => explorer.new_remove_file_prompt(cx),
-                        _ => return EventResult::Ignored(None),
-                    };
-                    EventResult::Consumed(None)
-                }));
-            }
+            key!('r') => self.new_rename_prompt(),
             _ => {
                 self.tree
                     .handle_event(Event::Key(key_event), cx, &mut self.state);

helix-term/src/ui/tree.rs

@@ -174,18 +174,61 @@ impl<T: TreeItem> Tree<T> {
         }
         Ok(())
     }
+
+    fn refresh(&mut self) -> Result<()> {
+        if !self.is_opened {
+            return Ok(());
+        }
+        let latest_children = vec_to_tree(self.item.get_children()?);
+        let filtered = std::mem::replace(&mut self.children, vec![])
+            .into_iter()
+            // Remove children that does not exists in latest_children
+            .filter(|tree| {
+                latest_children
+                    .iter()
+                    .any(|child| tree.item.name().eq(&child.item.name()))
+            })
+            .map(|mut tree| {
+                tree.refresh()?;
+                Ok(tree)
+            })
+            .collect::<Result<Vec<_>>>()?;
+
+        // Add new children
+        let new_nodes = latest_children
+            .into_iter()
+            .filter(|child| {
+                !filtered
+                    .iter()
+                    .any(|child_| child.item.name().eq(&child_.item.name()))
+            })
+            .collect::<Vec<_>>();
+
+        self.children = filtered.into_iter().chain(new_nodes).collect();
+
+        self.sort();
+
+        Ok(())
+    }
+
+    fn sort(&mut self) {
+        self.children
+            .sort_by(|a, b| tree_item_cmp(&a.item, &b.item))
+    }
 }
 
 impl<T> Tree<T> {
     pub fn new(item: T, children: Vec<Tree<T>>) -> Self {
+        let is_opened = !children.is_empty();
         Self {
             item,
             index: 0,
             parent_index: None,
             children: index_elems(0, children),
-            is_opened: false,
+            is_opened,
         }
     }
+
     fn iter(&self) -> TreeIter<T> {
         TreeIter {
             tree: self,
@@ -352,6 +395,8 @@ impl<T: TreeItem> TreeView<T> {
     /// vec!["helix-term", "src", "ui", "tree.rs"]
     /// ```
     pub fn reveal_item(&mut self, segments: Vec<&str>) -> Result<()> {
+        self.tree.refresh()?;
+
         // Expand the tree
         segments.iter().fold(
             Ok(&mut self.tree),