From 4545656c31baf8027f162870c6774463a38e78bb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Kav=C3=ADk?= <martin@kavik.cz>
Date: Mon, 17 Jun 2024 19:36:44 +0200
Subject: [PATCH] loaded_filename

---
 frontend/src/header_panel.rs  | 2 +-
 frontend/src/main.rs          | 3 ++-
 frontend/src/script_bridge.rs | 5 +++--
 3 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/frontend/src/header_panel.rs b/frontend/src/header_panel.rs
index 7898c34..9777a0e 100644
--- a/frontend/src/header_panel.rs
+++ b/frontend/src/header_panel.rs
@@ -140,7 +140,7 @@ impl HeaderPanel {
                                     platform::pick_and_load_waveform(Some(file)).await
                                 {
                                     loaded_filename.set_neq(Some(filename));
-                                    hierarchy.set(Some(Rc::new(platform::get_hierarchy().await)))
+                                    hierarchy.set(Some(Arc::new(platform::get_hierarchy().await)))
                                 }
                             })
                         })
diff --git a/frontend/src/main.rs b/frontend/src/main.rs
index a54a5e9..8f8ddc5 100644
--- a/frontend/src/main.rs
+++ b/frontend/src/main.rs
@@ -26,6 +26,7 @@ type Filename = String;
 struct Store {
     selected_var_refs: MutableVec<wellen::VarRef>,
     hierarchy: Mutable<Option<Arc<wellen::Hierarchy>>>,
+    loaded_filename: Mutable<Option<Filename>>,
 }
 
 static STORE: Lazy<Store> = lazy::default();
@@ -43,7 +44,7 @@ fn root() -> impl Element {
     let hierarchy = STORE.hierarchy.clone();
     let selected_var_refs = STORE.selected_var_refs.clone();
     let layout: Mutable<Layout> = <_>::default();
-    let loaded_filename: Mutable<Option<Filename>> = <_>::default();
+    let loaded_filename = STORE.loaded_filename.clone();
     Column::new()
         .s(Height::fill())
         .s(Scrollbars::y_and_clip_x())
diff --git a/frontend/src/script_bridge.rs b/frontend/src/script_bridge.rs
index 139e2f2..0dcf94a 100644
--- a/frontend/src/script_bridge.rs
+++ b/frontend/src/script_bridge.rs
@@ -49,8 +49,9 @@ impl FW {
         0
     }
 
-    pub fn loaded_filename() -> String {
-        format!("todo loaded filename")
+    /// JS: `FW.loaded_filename()` -> `simple.vcd`
+    pub fn loaded_filename() -> Option<String> {
+        STORE.loaded_filename.get_cloned()
     }
 
     /// JS: `FW.selected_vars()` -> `["simple_tb.s.A", "simple_tb.s.B"]`