Add WebView::renderAjaxString() (#141)

vjik · web-flow · commit 23ad8da5eb66 · 2021-05-14T00:35:12.000+03:00
diff --git a/src/WebView.php b/src/WebView.php
@@ -236,6 +236,28 @@ public function renderAjax(string $view, array $params = []): string
         return ob_get_clean();
     }
 
+    /**
+     * Renders a string in response to an AJAX request.
+     *
+     * @param string $string The string.
+     *
+     * @return string The rendering result.
+     */
+    public function renderAjaxString(string $string): string
+    {
+        ob_start();
+        PHP_VERSION_ID >= 80000 ? ob_implicit_flush(false) : ob_implicit_flush(0);
+
+        $this->beginPage();
+        $this->head();
+        $this->beginBody();
+        echo $string;
+        $this->endBody();
+        $this->endPage(true);
+
+        return ob_get_clean();
+    }
+
     /**
      * Clears up the registered meta tags, link tags, css/js scripts and files.
      */
diff --git a/tests/WebViewTest.php b/tests/WebViewTest.php
@@ -11,6 +11,9 @@
 use Yiisoft\Files\FileHelper;
 use Yiisoft\Html\Html;
 use Yiisoft\Test\Support\EventDispatcher\SimpleEventDispatcher;
+use Yiisoft\View\Event\BodyBegin;
+use Yiisoft\View\Event\BodyEnd;
+use Yiisoft\View\Event\PageBegin;
 use Yiisoft\View\Event\PageEnd;
 use Yiisoft\View\WebView;
 
@@ -140,6 +143,26 @@ public function testRenderAjaxWithoutContext(): void
         $this->assertSame($content, $html);
     }
 
+    public function testRenderAjaxString(): void
+    {
+        $eventDispatcher = new SimpleEventDispatcher();
+        $webView = $this->createWebView($eventDispatcher);
+
+        $string = 'content';
+        $result = $webView->renderAjaxString($string);
+
+        $this->assertSame($string, $result);
+        $this->assertSame(
+            [
+                PageBegin::class,
+                BodyBegin::class,
+                BodyEnd::class,
+                PageEnd::class,
+            ],
+            $eventDispatcher->getEventClasses()
+        );
+    }
+
     public function testRegisterScriptTag(): void
     {
         $script = Html::script('{"@context": "http://schema.org/","@type": "Article","name": "Yii 3"}')
