save and load is done

saves/test_save.json

@@ -0,0 +1,9 @@
+{
+  "poly_frame": {
+    "teta": 3.7117934,
+    "polygons": []
+  },
+  "nb_sec_for_rev": 4.0,
+  "file_name": "test_save.json",
+  "show_save_panel": true
+}

src/main.rs

@@ -9,7 +9,7 @@ use std::fs;
 use iced::{
     Color, Element, Length, Task, Theme,
     time::{self, Duration},
-    widget::{Column, button, canvas, column, container, pick_list, row, slider, text},
+    widget::{Column, TextInput, button, canvas, column, container, pick_list, row, slider, text},
 };
 
 use serde::{Deserialize, Serialize};
@@ -41,6 +41,7 @@ enum Message {
     ToggleSavePanel,
     Save,
     Load,
+    FileNameChanged(String),
 }
 
 #[derive(Serialize, Deserialize)]
@@ -195,6 +196,7 @@ impl MyApp {
                 self.poly_frame.update();
             }
             Message::ToggleSavePanel => self.show_save_panel = !self.show_save_panel,
+            Message::FileNameChanged(s) => self.file_name = s,
         }
     }
 
@@ -266,9 +268,26 @@ impl MyApp {
                 .on_press(Message::ToggleSavePanel)
                 .into(),
         ];
+        let mut entries_saves: Vec<String> = fs::read_dir("./saves")
+            .unwrap()
+            .filter_map(|res| res.ok())
+            .map(|e| e.path().file_name().unwrap().to_str().unwrap().to_string())
+            .collect();
 
         if self.show_save_panel {
+            save_panel.push(
+                TextInput::new("Name File", &self.file_name)
+                    .on_input(|new_value| Message::FileNameChanged(new_value))
+                    .into(),
+            );
             save_panel.push(button("Save").on_press(Message::Save).into());
+            save_panel.push(
+                pick_list(entries_saves, Some(&self.file_name), move |s| {
+                    Message::FileNameChanged(s)
+                })
+                .into(),
+            );
+
             save_panel.push(button("Load").on_press(Message::Load).into());
         }
         column![