implement separated mods for navigation widgets

src/app/browser/window/tab/item/page/navigation/widget.rs

@@ -0,0 +1,46 @@
+use gtk::{
+    prelude::{BoxExt, WidgetExt},
+    Box, Button, DirectionType, Entry, Orientation,
+};
+use std::sync::Arc;
+
+pub struct Widget {
+    gobject: Box,
+}
+
+impl Widget {
+    // Construct
+    pub fn new_arc(
+        base: &Button,
+        history: &Box,
+        reload: &Button,
+        request: &Entry,
+        bookmark: &Button,
+    ) -> Arc<Self> {
+        let gobject = Box::builder()
+            .orientation(Orientation::Horizontal)
+            .spacing(8)
+            .margin_start(6)
+            .margin_end(6)
+            .margin_bottom(6)
+            .build();
+
+        gobject.append(base);
+        gobject.append(history);
+        gobject.append(reload);
+        gobject.append(request);
+        gobject.append(bookmark);
+
+        Arc::new(Self { gobject })
+    }
+
+    // Actions
+    pub fn focus(&self) {
+        self.gobject.child_focus(DirectionType::Right);
+    }
+
+    // Getters
+    pub fn gobject(&self) -> &Box {
+        &self.gobject
+    }
+}