add ChainIconRegistry

Author: kbond

src/Icons/config/services.php

@@ -14,6 +14,7 @@
 use Symfony\UX\Icons\Command\WarmCacheCommand;
 use Symfony\UX\Icons\IconRenderer;
 use Symfony\UX\Icons\Registry\CacheIconRegistry;
+use Symfony\UX\Icons\Registry\ChainIconRegistry;
 use Symfony\UX\Icons\Registry\LocalSvgIconRegistry;
 use Symfony\UX\Icons\Twig\IconFinder;
 use Symfony\UX\Icons\Twig\UXIconComponent;
@@ -24,14 +25,20 @@
     $container->services()
         ->set('.ux_icons.cache_icon_registry', CacheIconRegistry::class)
             ->args([
-                service('.ux_icons.local_svg_icon_registry'),
+                service('.ux_icons.chain_registry'),
                 service('cache.system'),
             ])
 
         ->set('.ux_icons.local_svg_icon_registry', LocalSvgIconRegistry::class)
             ->args([
                 abstract_arg('icon_dir'),
             ])
+            ->tag('ux_icons.registry', ['priority' => 10])
+
+        ->set('.ux_icons.chain_registry', ChainIconRegistry::class)
+            ->args([
+                tagged_iterator('ux_icons.registry'),
+            ])
 
         ->alias('.ux_icons.icon_registry', '.ux_icons.cache_icon_registry')
 

src/Icons/src/Registry/ChainIconRegistry.php

@@ -0,0 +1,43 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\UX\Icons\Registry;
+
+use Symfony\UX\Icons\Exception\IconNotFoundException;
+use Symfony\UX\Icons\IconRegistryInterface;
+use Symfony\UX\Icons\Svg\Icon;
+
+/**
+ * @author Kevin Bond <kevinbond@gmail.com>
+ *
+ * @internal
+ */
+final class ChainIconRegistry implements IconRegistryInterface
+{
+    /**
+     * @param IconRegistryInterface[] $registries
+     */
+    public function __construct(private iterable $registries)
+    {
+    }
+
+    public function get(string $name): Icon
+    {
+        foreach ($this->registries as $registry) {
+            try {
+                return $registry->get($name);
+            } catch (IconNotFoundException) {
+            }
+        }
+
+        throw new IconNotFoundException(sprintf('Icon "%s" not found.', $name));
+    }
+}