Add custom renderer option

Author: aarondfrancis

CHANGELOG.md

@@ -1,5 +1,11 @@
 # Changelog
 
+## 0.3.2 - 2021-07-31
+
+### Added
+- Ability to register a custom block renderer. Needed for Ibis client.
+
+
 ## 0.3.1 - 2021-06-17
 
 ### Added

src/TorchlightExtension.php

@@ -19,6 +19,8 @@ class TorchlightExtension implements ExtensionInterface, BlockRendererInterface
 {
     public static $torchlightBlocks = [];
 
+    protected $customBlockRenderer;
+
     public function register(ConfigurableEnvironmentInterface $environment)
     {
         // We start by walking the document immediately after it's parsed
@@ -66,10 +68,21 @@ public function render(AbstractBlock $block, ElementRendererInterface $htmlRende
         $hash = $this->makeTorchlightBlock($block)->hash();
 
         if (array_key_exists($hash, static::$torchlightBlocks)) {
+            if ($this->customBlockRenderer) {
+                return call_user_func($this->customBlockRenderer, static::$torchlightBlocks[$hash]);
+            }
+
             return static::$torchlightBlocks[$hash]->wrapped;
         }
     }
 
+    public function registerCustomBlockRenderer($callback)
+    {
+        $this->customBlockRenderer = $callback;
+
+        return $this;
+    }
+
     protected function makeTorchlightBlock($node)
     {
         return Block::make()

tests/CodeRendererTest.php

@@ -75,6 +75,50 @@ public function it_highlights_code_blocks()
         $this->assertEquals($expected, $html);
     }
 
+    /** @test */
+    public function it_can_set_a_custom_renderer()
+    {
+        $markdown = <<<'EOT'
+```html
+<div>html</div>
+```
+EOT;
+
+        $response = [
+            'blocks' => [[
+                'id' => 'block_id_1',
+                'wrapped' => '<pre><code>highlighted</code></pre>',
+            ]]
+        ];
+
+        Http::fake([
+            'api.torchlight.dev/*' => Http::response($response, 200),
+        ]);
+
+        $extension = new TorchlightExtension;
+        $extension->registerCustomBlockRenderer(function(Block $block) {
+            return 'foo_bar';
+        });
+
+        $environment = Environment::createCommonMarkEnvironment();
+        $environment->addExtension($extension);
+
+        $parser = new DocParser($environment);
+        $htmlRenderer = new HtmlRenderer($environment);
+
+        $document = $parser->parse($markdown);
+
+        $html = $htmlRenderer->renderBlock($document);
+
+        $expected = <<<EOT
+foo_bar
+
+EOT;
+
+        $this->assertEquals($expected, $html);
+    }
+
+
     /** @test */
     public function gets_language_and_contents()
     {