implement bookmark button

src/Abstract/Entity/Button.php

@@ -17,17 +17,7 @@ abstract class Button
     {
         $this->gtk = new \GtkButton;
 
-        if (\GtkIconTheme::get_default()->has_icon($this::IMAGE))
-        {
-            $this->gtk->set_image(
-                \GtkImage::new_from_icon_name(
-                    $this::IMAGE,
-                    \GtkIconSize::BUTTON
-                )
-            );
-        }
-
-        else
+        if (!$this->setImage($this::IMAGE))
         {
             $this->gtk->set_label(
                 _($this::LABEL)
@@ -61,4 +51,24 @@ abstract class Button
     abstract protected function _onClick(
         \GtkButton $entity
     ): void;
+
+    public function setImage(
+        ?string $image = null,
+        int $size = \GtkIconSize::BUTTON
+    ): bool
+    {
+        if (\GtkIconTheme::get_default()->has_icon($image))
+        {
+            $this->gtk->set_image(
+                \GtkImage::new_from_icon_name(
+                    $image,
+                    $size
+                )
+            );
+
+            return true;
+        }
+
+        return false;
+    }
 }

src/Entity/Browser/Container/Page/Navbar.php

@@ -15,6 +15,7 @@ class Navbar
 
     // Requirements
     public Navbar\Base $base;
+    public Navbar\Bookmark $bookmark;
     public Navbar\History $history;
     public Navbar\Request $request;
     public Navbar\Update $update;
@@ -92,6 +93,15 @@ class Navbar
             0
         );
 
+        // Append bookmark button
+        $this->bookmark = new Navbar\Bookmark(
+            $this
+        );
+
+        $this->gtk->add(
+            $this->bookmark->gtk
+        );
+
         // Render
         $this->gtk->show();
     }

src/Entity/Browser/Container/Page/Navbar/Bookmark.php

@@ -0,0 +1,38 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Yggverse\Yoda\Entity\Browser\Container\Page\Navbar;
+
+use \Yggverse\Yoda\Abstract\Entity\Browser\Container\Page\Navbar\Button;
+
+class Bookmark extends Button
+{
+    private const _IMAGE_STARRED_YES = 'starred-symbolic';
+    private const _IMAGE_STARRED_NON = 'non-starred-symbolic';
+
+    public const IMAGE = self::_IMAGE_STARRED_NON;
+    public const LABEL = 'Bookmark';
+    public const TOOLTIP = 'Toggle bookmark';
+    public const SENSITIVE = true;
+
+    protected function _onCLick(
+        \GtkButton $entity
+    ): void
+    {
+        $this->setImage(
+            $this->navbar->page->container->browser->database->toggleBookmark(
+                $this->navbar->request->getValue()
+            ) ? self::_IMAGE_STARRED_YES : self::_IMAGE_STARRED_NON
+        );
+    }
+
+    public function refresh(): void
+    {
+        $this->setImage(
+            $this->navbar->page->container->browser->database->getBookmark(
+                $this->navbar->request->getValue()
+            ) ? self::_IMAGE_STARRED_YES : self::_IMAGE_STARRED_NON
+        );
+    }
+}