add the ability to have static component

Author: matheo

src/TwigComponent/src/ComponentFactory.php

@@ -17,6 +17,7 @@
 use Symfony\UX\TwigComponent\Attribute\AsTwigComponent;
 use Symfony\UX\TwigComponent\Event\PostMountEvent;
 use Symfony\UX\TwigComponent\Event\PreMountEvent;
+use Twig\Environment;
 
 /**
  * @author Kevin Bond <kevinbond@gmail.com>
@@ -32,13 +33,21 @@ public function __construct(
         private ServiceLocator $components,
         private PropertyAccessorInterface $propertyAccessor,
         private EventDispatcherInterface $eventDispatcher,
-        private array $config
+        private array $config,
+        private Environment $environment,
     ) {
     }
 
     public function metadataFor(string $name): ComponentMetadata
     {
         if (!$config = $this->config[$name] ?? null) {
+            if ($this->isStaticComponent($name)) {
+                return new ComponentMetadata([
+                    'key' => $name,
+                    'template' => $this->getTemplateFromName($name),
+                ]);
+            }
+
             throw new \InvalidArgumentException(sprintf('Unknown component "%s". The registered components are: %s', $name, implode(', ', array_keys($this->config))));
         }
 
@@ -143,6 +152,10 @@ private function mount(object $component, array &$data): void
     private function getComponent(string $name): object
     {
         if (!$this->components->has($name)) {
+            if ($this->isStaticComponent($name)) {
+                return new StaticComponent();
+            }
+
             throw new \InvalidArgumentException(sprintf('Unknown component "%s". The registered components are: %s', $name, implode(', ', array_keys($this->components->getProvidedServices()))));
         }
 
@@ -182,4 +195,14 @@ private function postMount(object $component, array $data): array
 
         return $data;
     }
+
+    private function isStaticComponent(string $name): bool
+    {
+        return $this->environment->getLoader()->exists($this->getTemplateFromName($name));
+    }
+
+    private function getTemplateFromName(string $name): string
+    {
+        return str_replace('.', '/', $name).'.html.twig';
+    }
 }

src/TwigComponent/src/DependencyInjection/TwigComponentExtension.php

@@ -53,6 +53,7 @@ static function (ChildDefinition $definition, AsTwigComponent $attribute) {
                 new Reference('property_accessor'),
                 new Reference('event_dispatcher'),
                 class_exists(AbstractArgument::class) ? new AbstractArgument(sprintf('Added in %s.', TwigComponentPass::class)) : [],
+                new Reference('twig'),
             ])
         ;
 

src/TwigComponent/src/StaticComponent.php

@@ -0,0 +1,7 @@
+<?php
+
+namespace Symfony\UX\TwigComponent;
+
+class StaticComponent
+{
+}

src/TwigComponent/tests/Fixtures/templates/render_static_component.html.twig

@@ -0,0 +1 @@
+{{ component('static.button') }}

src/TwigComponent/tests/Fixtures/templates/static/button.html.twig

@@ -0,0 +1 @@
+I am static

src/TwigComponent/tests/Integration/ComponentExtensionTest.php

@@ -151,6 +151,13 @@ public function testCanRenderEmbeddedComponent(): void
         $this->assertStringContainsString('custom td (1)', $output);
     }
 
+    public function testCanRenderStaticComponent(): void
+    {
+        $output = self::getContainer()->get(Environment::class)->render('render_static_component.html.twig');
+
+        $this->assertStringContainsString('I am static', $output);
+    }
+
     public function testComponentWithNamespace(): void
     {
         $output = $this->renderComponent('foo:bar:baz');