refactor to separated entities, init abstractions

src/Entity/Window/Tab/Address/Navbar/History.php

@@ -0,0 +1,76 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Yggverse\Yoda\Entity\Window\Tab\Address\Navbar;
+
+use \Yggverse\Yoda\Entity\Window\Tab\Address\Navbar\History\Back;
+use \Yggverse\Yoda\Entity\Window\Tab\Address\Navbar\History\Forward;
+
+class History
+{
+    public \GtkButtonBox $gtk;
+
+    public \Yggverse\Yoda\Entity\Window\Tab\Address\Navbar $navbar;
+    public \Yggverse\Yoda\Entity\Window\Tab\Address\Navbar\History\Back $back;
+    public \Yggverse\Yoda\Entity\Window\Tab\Address\Navbar\History\Forward $forward;
+
+    private \Yggverse\Yoda\Model\History $_history;
+
+    public function __construct(
+        \Yggverse\Yoda\Entity\Window\Tab\Address\Navbar $navbar
+    ) {
+        $this->_history = new \Yggverse\Yoda\Model\History();
+
+        $this->navbar = $navbar;
+
+        $this->gtk = new \GtkButtonBox(
+            \GtkOrientation::HORIZONTAL
+        );
+
+        $this->gtk->set_layout(
+            \GtkButtonBoxStyle::EXPAND
+        );
+
+        $this->back = new Back(
+            $this->navbar
+        );
+
+        $this->gtk->add(
+            $this->back->gtk
+        );
+
+        $this->forward = new Forward(
+            $this->navbar
+        );
+
+        $this->gtk->add(
+            $this->forward->gtk
+        );
+    }
+
+    public function add(
+        string $url
+    ): void
+    {
+        if (empty($url))
+        {
+            throw new \Exception;
+        }
+
+        if ($url != $this->_history->getCurrent())
+        {
+            $this->_history->add(
+                $url
+            );
+        }
+
+        $this->back->gtk->set_sensitive(
+            (bool) $this->_history->getBack()
+        );
+
+        $this->forward->gtk->set_sensitive(
+            (bool) $this->_history->getForward()
+        );
+    }
+}