create separated widget mod implementation

src/browser/header/mod.rs

@@ -1,19 +1,20 @@
 mod subject;
 mod tray;
-
-use std::sync::Arc;
-
-use gtk::HeaderBar;
+mod widget;
 
 pub struct Header {
-    pub widget: Arc<gtk::HeaderBar>,
+    widget: widget::Header,
 }
 
-pub fn new() -> Header {
-    let widget = Arc::new(HeaderBar::builder().build());
+impl Header {
+    pub fn new() -> Header {
+        Self {
+            widget: widget::Header::new(&tray::new(), &subject::new()),
+        }
+    }
 
-    widget.pack_start(&tray::new());
-    widget.set_title_widget(Some(&subject::new()));
-
-    Header { widget }
+    // Getters
+    pub fn widget(&self) -> &widget::Header {
+        &self.widget
+    }
 }

src/browser/header/widget.rs

@@ -0,0 +1,18 @@
+pub struct Header {
+    gtk: gtk::HeaderBar,
+}
+
+impl Header {
+    pub fn new(tray: &gtk::Box, subject: &gtk::Box) -> Header {
+        let gtk = gtk::HeaderBar::builder().build();
+
+        gtk.pack_start(tray);
+        gtk.set_title_widget(Some(subject));
+
+        Self { gtk }
+    }
+
+    pub fn gtk(&self) -> &gtk::HeaderBar {
+        &self.gtk
+    }
+}

src/browser/mod.rs

@@ -22,8 +22,8 @@ impl Browser {
         // Init widget
         let widget = widget::Browser::new(
             app,
-            header::new().widget.as_ref(), // @TODO
-            main::new().widget.as_ref(),   // @TODO
+            header::Header::new().widget().gtk(),
+            main::new().widget.as_ref(), // @TODO
             default_width,
             default_height,
         );