Add async and defer

WebLoader/Compiler.php

@@ -34,6 +34,12 @@ class Compiler
 	/** @var bool */
 	private $debugging = FALSE;
 
+	/** @var bool */
+	private $async = FALSE;
+
+	/** @var bool */
+	private $defer = FALSE;
+
 	public function __construct(IFileCollection $files, IOutputNamingConvention $convention, $outputDir)
 	{
 		$this->collection = $files;
@@ -117,6 +123,42 @@ public function setJoinFiles($joinFiles)
 		$this->joinFiles = (bool) $joinFiles;
 	}
 
+	/**
+	 * @return boolean
+	 */
+	public function isAsync()
+	{
+		return $this->async;
+	}
+
+	/**
+	 * @param boolean $async
+	 * @return Compiler
+	 */
+	public function setAsync($async)
+	{
+		$this->async = (bool) $async;
+		return $this;
+	}
+
+	/**
+	 * @return boolean
+	 */
+	public function isDefer()
+	{
+		return $this->defer;
+	}
+
+	/**
+	 * @param boolean $defer
+	 * @return Compiler
+	 */
+	public function setDefer($defer)
+	{
+		$this->defer = $defer;
+		return $this;
+	}
+
 	/**
 	 * Set check last modified
 	 * @param bool $checkLastModified

WebLoader/Nette/Extension.php

@@ -37,6 +37,8 @@ public function getDefaultConfig()
 				'filters' => array(),
 				'fileFilters' => array(),
 				'joinFiles' => TRUE,
+				'async' => FALSE,
+				'defer' => FALSE,
 				'namingConvention' => '@' . $this->prefix('jsNamingConvention'),
 			),
 			'cssDefaults' => array(
@@ -51,6 +53,8 @@ public function getDefaultConfig()
 				'filters' => array(),
 				'fileFilters' => array(),
 				'joinFiles' => TRUE,
+				'async' => FALSE,
+				'defer' => FALSE,
 				'namingConvention' => '@' . $this->prefix('cssNamingConvention'),
 			),
 			'js' => array(
@@ -126,7 +130,9 @@ private function addWebLoader(ContainerBuilder $builder, $name, $config)
 				$config['tempDir'],
 			));
 
-		$compiler->addSetup('setJoinFiles', array($config['joinFiles']));
+		$compiler->addSetup('setJoinFiles', array($config['joinFiles']))
+			->addSetup('setAsync', array($config['async']))
+			->addSetup('setDefer', array($config['defer']));
 
 		if ($builder->parameters['webloader']['debugger']) {
 			$compiler->addSetup('@' . $this->prefix('tracyPanel') . '::addLoader', array(

WebLoader/Nette/JavaScriptLoader.php

@@ -20,7 +20,10 @@ class JavaScriptLoader extends WebLoader
 	 */
 	public function getElement($source)
 	{
-		return Html::el("script")->type("text/javascript")->src($source);
+		$el = Html::el("script");
+		$this->getCompiler()->isAsync() ? $el = $el->addAttributes(['async' => TRUE]) : NULL;
+		$this->getCompiler()->isDefer() ? $el = $el->addAttributes(['defer' => TRUE]) : NULL;
+		return $el->type("text/javascript")->src($source);
 	}
 
 }

tests/Nette/ExtensionTest.php

@@ -77,6 +77,42 @@ public function testJoinFilesOffInOneService()
 		$this->assertFalse($this->container->getService('webloader.cssJoinOffCompiler')->getJoinFiles());
 	}
 
+	public function testAsyncOn()
+	{
+		$this->prepareContainer(array(
+			__DIR__ . '/../fixtures/extension.neon',
+			__DIR__ . '/../fixtures/extensionAsyncTrue.neon',
+		));
+		$this->assertTrue($this->container->getService('webloader.jsDefaultCompiler')->isAsync());
+	}
+
+	public function testAsyncOff()
+	{
+		$this->prepareContainer(array(
+			__DIR__ . '/../fixtures/extension.neon',
+			__DIR__ . '/../fixtures/extensionAsyncFalse.neon',
+		));
+		$this->assertFalse($this->container->getService('webloader.jsDefaultCompiler')->isAsync());
+	}
+
+	public function testDeferOn()
+	{
+		$this->prepareContainer(array(
+			__DIR__ . '/../fixtures/extension.neon',
+			__DIR__ . '/../fixtures/extensionDeferTrue.neon',
+		));
+		$this->assertTrue($this->container->getService('webloader.jsDefaultCompiler')->isDefer());
+	}
+
+	public function testDeferOff()
+	{
+		$this->prepareContainer(array(
+			__DIR__ . '/../fixtures/extension.neon',
+			__DIR__ . '/../fixtures/extensionDeferFalse.neon',
+		));
+		$this->assertFalse($this->container->getService('webloader.jsDefaultCompiler')->isDefer());
+	}
+
 	public function testExtensionName()
 	{
 		$tempDir = __DIR__ . '/../temp';

tests/fixtures/extensionAsyncFalse.neon

@@ -0,0 +1,3 @@
+webloader:
+  jsDefaults:
+    async: false

tests/fixtures/extensionAsyncTrue.neon

@@ -0,0 +1,3 @@
+webloader:
+  jsDefaults:
+    async: true

tests/fixtures/extensionDeferFalse.neon

@@ -0,0 +1,3 @@
+webloader:
+  jsDefaults:
+    defer: false

tests/fixtures/extensionDeferTrue.neon

@@ -0,0 +1,3 @@
+webloader:
+  jsDefaults:
+    defer: true