separated app to separate file

src/app.rs

@@ -0,0 +1,73 @@
+use crate::widget::{Message, PanelWidget};
+use crate::widgets::battery::BatteryWidget;
+use crate::widgets::clock::ClockWidget;
+use crate::widgets::spacer::Spacer;
+
+use iced::Color;
+use iced::Element;
+use iced::Subscription;
+use iced::Task;
+
+pub struct App {
+    widgets: Vec<Box<dyn PanelWidget>>,
+}
+
+impl App {
+    pub const WINDOW_HEIGHT: u32 = 32;
+
+    pub fn new() -> Self {
+        Self {
+            widgets: vec![
+                Box::new(ClockWidget::new()),
+                Box::new(Spacer::new(iced::Length::Fill)),
+                Box::new(BatteryWidget::new()),
+            ],
+        }
+    }
+
+    pub fn name() -> String {
+        "wayland_panel".into()
+    }
+
+    pub fn view(&self, id: iced::window::Id) -> Element<'_, Message> {
+        if let Some(elem) = self
+            .widgets
+            .iter()
+            .find(|widget| widget.own_window(id))
+            .map(|widget| widget.view(id))
+        {
+            return elem;
+        }
+
+        iced::widget::Row::with_children(self.widgets.iter().map(|widget| widget.view(id)))
+            .padding(iced::Padding::from([0, 5]))
+            .height(iced::Length::Fill)
+            .width(iced::Length::Fill)
+            .align_y(iced::Alignment::Center)
+            .into()
+    }
+
+    pub fn update(&mut self, message: Message) -> Task<Message> {
+        let mut output = Vec::new();
+        for widget in &mut self.widgets {
+            output.push(widget.update(&message));
+        }
+
+        Task::batch(output)
+    }
+
+    pub fn style(&self, theme: &iced::Theme) -> iced::theme::Style {
+        iced::theme::Style {
+            background_color: Color::TRANSPARENT,
+            text_color: theme.palette().text,
+        }
+    }
+
+    pub fn theme(&self, _id: iced::window::Id) -> iced::Theme {
+        iced::Theme::GruvboxDark
+    }
+
+    pub fn subscription(&self) -> iced::Subscription<Message> {
+        Subscription::batch(self.widgets.iter().map(|w| w.subscribe()))
+    }
+}

src/main.rs

@@ -1,19 +1,12 @@
-use iced::Color;
-use iced::Element;
-use iced::Subscription;
-use iced::Task;
 use iced_layershell::daemon;
 use iced_layershell::reexport::Anchor;
 use iced_layershell::settings::LayerShellSettings;
 use iced_layershell::settings::Settings;
 
+mod app;
 mod widget;
 mod widgets;
-
+use app::App;
-use crate::widget::Message;
-use crate::widgets::battery::BatteryWidget;
-use crate::widgets::clock::ClockWidget;
-use crate::widgets::spacer::Spacer;
 
 pub fn main() -> Result<(), iced_layershell::Error> {
     daemon(App::new, App::name, App::update, App::view)
@@ -32,67 +25,3 @@ pub fn main() -> Result<(), iced_layershell::Error> {
         })
         .run()
 }
-
-struct App {
-    widgets: Vec<Box<dyn widget::PanelWidget>>,
-}
-
-impl App {
-    const WINDOW_HEIGHT: u32 = 32;
-
-    fn new() -> Self {
-        Self {
-            widgets: vec![
-                Box::new(ClockWidget::new()),
-                Box::new(Spacer::new(iced::Length::Fill)),
-                Box::new(BatteryWidget::new()),
-            ],
-        }
-    }
-
-    fn name() -> String {
-        "wayland_panel".into()
-    }
-
-    fn view(&self, id: iced::window::Id) -> Element<'_, Message> {
-        if let Some(elem) = self
-            .widgets
-            .iter()
-            .find(|widget| widget.own_window(id))
-            .map(|widget| widget.view(id))
-        {
-            return elem;
-        }
-
-        iced::widget::Row::with_children(self.widgets.iter().map(|widget| widget.view(id)))
-            .padding(iced::Padding::from([0, 5]))
-            .height(iced::Length::Fill)
-            .width(iced::Length::Fill)
-            .align_y(iced::Alignment::Center)
-            .into()
-    }
-
-    fn update(&mut self, message: Message) -> Task<Message> {
-        let mut output = Vec::new();
-        for widget in &mut self.widgets {
-            output.push(widget.update(&message));
-        }
-
-        Task::batch(output)
-    }
-
-    fn style(&self, theme: &iced::Theme) -> iced::theme::Style {
-        iced::theme::Style {
-            background_color: Color::TRANSPARENT,
-            text_color: theme.palette().text,
-        }
-    }
-
-    fn theme(&self, _id: iced::window::Id) -> iced::Theme {
-        iced::Theme::GruvboxDark
-    }
-
-    fn subscription(&self) -> iced::Subscription<Message> {
-        Subscription::batch(self.widgets.iter().map(|w| w.subscribe()))
-    }
-}