Fixed build error. Generic TabStates are now functional

src/app/ui/mod.rs

@@ -1,5 +1,3 @@
-use tabs::Tab;
-
 use crate::app::App;
 use crate::theme::onedark::ONE_DARK;
 
@@ -7,12 +5,16 @@ pub mod tabs;
 
 impl<'a> eframe::App for App<'a> {
     fn update(&mut self, ctx: &egui::Context, _frame: &mut eframe::Frame) {
-        let _background_frame = egui::Frame::default().fill(ONE_DARK.bg);
+        let frame = egui::Frame::default().fill(ONE_DARK.bg);
 
-        tabs::display_tabs(self, ctx);
+        // Display the top bar of tabs
+        tabs::display_tabs(&mut self.tab_state, ctx, &frame);
 
-        match &mut self.tab_state.current_tab {
-            tabs::TabTypes::METAR(tab) => tab.display_tab(ctx),
+        // Display tabs for main UI
+        match self.tab_state.get_current_tab() {
+            Some(tab) => tab.display_tab(ctx, &frame),
+
+            // What to do if the tab is not available
             _ => (),
         }
     }

src/app/ui/tabs/metar_tab.rs

@@ -7,8 +7,8 @@ pub struct MetarTab {
 }
 
 impl Tab for MetarTab {
-    fn display_tab(&mut self, ctx: &egui::Context) {
-        egui::CentralPanel::default().show(ctx, |ui| {
+    fn display_tab(&mut self, ctx: &egui::Context, frame: &egui::Frame) {
+        egui::CentralPanel::default().frame(*frame).show(ctx, |ui| {
             for icao in self.icaos.iter_mut() {
                 ui.text_edit_singleline(icao);
             }

src/app/ui/tabs/mod.rs

@@ -6,9 +6,9 @@ use std::collections::HashMap;
 use strum::EnumIter;
 use strum::IntoEnumIterator;
 
-use crate::App;
+use self::metar_tab::MetarTab;
 
-#[derive(Debug, Default, EnumIter, PartialEq, Eq, Hash)]
+#[derive(Clone, Copy, Debug, Default, EnumIter, Eq, Hash, PartialEq)]
 pub enum TabTypes {
     #[default]
     Home,
@@ -18,32 +18,43 @@ pub enum TabTypes {
     Routing,
 }
 
-#[derive(Default)]
 pub struct TabState {
     current_tab: TabTypes,
     tabs: HashMap<TabTypes, Box<dyn Tab>>,
 }
 
+impl Default for TabState {
+    fn default() -> Self {
+        let mut ts = Self {
+            current_tab: TabTypes::default(),
+            tabs: HashMap::new(),
+        };
+
+        // Add each tab to the map
+        ts.tabs
+            .insert(TabTypes::METAR, Box::new(MetarTab::default()));
+
+        ts
+    }
+}
+
 impl TabState {
     /// Get the Tab based on a given Tab Type
-    pub fn get_tab_state(&self, tab_type: &TabTypes) -> Option<&Box<dyn Tab>> {
-        match self.tabs.get(tab_type) {
+    pub fn get_tab_state(&mut self, tab_type: TabTypes) -> Option<&mut Box<dyn Tab>> {
+        match self.tabs.get_mut(&tab_type) {
             Some(tab) => Some(tab),
             None => None,
         }
     }
 
-    /// Set the state of a given tab
-    pub fn set_tab_state(&mut self, tab_type: &TabTypes) {}
-
     /// Get the currently selected Tab
-    pub fn get_current_tab(&self) -> Option<&Box<dyn Tab>> {
-        self.get_tab_state(&self.current_tab)
+    pub fn get_current_tab(&mut self) -> Option<&mut Box<dyn Tab>> {
+        self.get_tab_state(self.current_tab)
     }
 
     /// Get the type of the current Tab
-    pub fn get_current_tab_type(&self) -> &TabTypes {
-        return &self.current_tab;
+    pub fn get_current_tab_type(&self) -> TabTypes {
+        return self.current_tab;
     }
 
     /// Change the current tab to a different tab type, saving the state of the current tab
@@ -54,24 +65,28 @@ impl TabState {
 
 /// Tab traits that allow tab display on the main application window
 pub trait Tab {
-    fn display_tab(&mut self, ctx: &egui::Context);
+    fn display_tab(&mut self, ctx: &egui::Context, frame: &egui::Frame);
 }
 
 /// Function to draw main set of tabs on the window
-pub fn display_tabs(app: &mut App, ctx: &egui::Context) {
-    egui::TopBottomPanel::top("app_top_bar").show(ctx, |ui| {
-        ui.horizontal_wrapped(|ui| {
-            ui.visuals_mut().button_frame = false;
+pub fn display_tabs(tab_state: &mut TabState, ctx: &egui::Context, frame: &egui::Frame) {
+    egui::TopBottomPanel::top("app_top_bar")
+        .frame(*frame)
+        .show(ctx, |ui| {
+            ui.horizontal_wrapped(|ui| {
+                ui.visuals_mut().button_frame = false;
 
-            // Insert Tabs
-            for tab in TabTypes::iter() {
-                let tab_label =
-                    ui.selectable_label(tab == app.tab_state.current_tab, format!("{:?}", tab));
+                // Insert Tabs
+                for tab in TabTypes::iter() {
+                    let tab_label = ui.selectable_label(
+                        tab == tab_state.get_current_tab_type(),
+                        format!("{:?}", tab),
+                    );
 
-                if tab_label.clicked() {
-                    app.tab_state.current_tab = tab
+                    if tab_label.clicked() {
+                        tab_state.change_tab(&tab);
+                    }
                 }
-            }
+            });
         });
-    });
 }