complete widget submodule refactory

src/browser/main/tab/label/mod.rs

@@ -1,16 +1,24 @@
 mod pin;
 mod title;
+mod widget;
 
-use gtk::prelude::BoxExt;
-use gtk::Box;
-
-pub fn new() -> Box {
-    let label = Box::builder()
-        .orientation(gtk::Orientation::Horizontal)
-        .build();
-
-    label.append(&pin::new(false));
-    label.append(&title::new());
-
-    label
+pub struct Label {
+    widget: widget::Label,
+}
+
+impl Label {
+    // Construct
+    pub fn new() -> Label {
+        Self {
+            widget: widget::Label::new(
+                pin::Pin::new().widget().gtk(),
+                title::Title::new().widget().gtk(),
+            ),
+        }
+    }
+
+    // Getters
+    pub fn widget(&self) -> &widget::Label {
+        &self.widget
+    }
 }