improved tree widget and separatated "FileTree" implementation out into separate src file

emulator/dsa_gui/src/ui/mod.rs

@@ -22,7 +22,7 @@ use tiles::PanelFactory;
 use tiles::documentation::Documentation;
 use tiles::editor::Editor;
 use tiles::io_devices::framebuffer::FrameBufferUi;
-use zxq5_egui::context_tree::{ContextTree, NewFileTree};
+use zxq5_egui::tree::{MenuTree, TreeEvent, file::FileTree};
 
 pub mod appearance;
 mod controller;
@@ -44,7 +44,7 @@ pub struct DamnSimpleUI {
 
     show_process_manager: bool,
     process_manager: ProcessManager,
-    file_tree: ContextTree<Action, NewFileTree>,
+    file_tree: MenuTree<Action, FileTree>,
 }
 
 impl eframe::App for DamnSimpleUI {
@@ -74,13 +74,17 @@ impl eframe::App for DamnSimpleUI {
         });
 
         Panel::left("left_panel").resizable(true).show(ui, |ui| {
-            let inner_res = self.file_tree.ui(ui);
+            let response = self.file_tree.ui(ui);
+            let Some(event) = response.inner else {
+                return;
+            };
 
-            if let Some(event) = inner_res.inner {
-                // match event {
-                //     ContextTreeEvent::Clicked(node) => self.perform_action(Action::OpenFile(node)),
-                //     ContextTreeEvent::ContextAction(action, node) => self.perform_action(action),
-                // }
+            match event {
+                TreeEvent::ContextAction(action, _tree) => self.perform_action(action),
+                TreeEvent::Clicked(tree) => {
+                    let filename = tree.filename().to_owned();
+                    self.perform_action(Action::OpenFile(filename));
+                }
             }
         });
 
@@ -147,16 +151,15 @@ impl DamnSimpleUI {
             show_process_manager: true,
             process_manager: ProcessManager::new(),
 
-            file_tree: ContextTree::new(
-                NewFileTree::build(&std::env::current_dir().unwrap()),
-                |ui, node| match node {
-                    NewFileTree::Leaf { filename } => ui
+            file_tree: MenuTree::new()
+                .root(Some(FileTree::build(&std::env::current_dir().unwrap())))
+                .ctx(|ui, node| match node {
+                    FileTree::File { path: filename } => ui
                         .button("Open Binary")
                         .clicked()
                         .then_some(Action::LoadBinary(DataSource::File(filename.clone()))),
-                    NewFileTree::Branch { .. } => None,
-                },
-            ),
+                    FileTree::Directory { .. } => None,
+                }),
         }
     }