Handle the title attribute optional

Author: Martin Brecht-Precht

composer.json

@@ -24,7 +24,7 @@
   },
   "require": {
     "php": ">=5.3",
-    "markdom/handler-interface": "^1.0.4",
+    "markdom/handler-interface": "^1.0.5",
     "markenwerk/stack-util": "~1.0",
     "markenwerk/string-builder": "~1.0",
     "markenwerk/json-pretty-printer": "~1.0"

src/Dispatcher/PhpObjectDispatcher.php

@@ -175,7 +175,8 @@ private function processContents(array $contents)
 					$this->eventDispatcher->onLineBreakContent($node->hard);
 					break;
 				case KeyNameTranslator::TYPE_LINK:
-					$this->eventDispatcher->onLinkContentBegin($node->uri, $node->title);
+					$title = isset($node->title) ? $node->title : null;
+					$this->eventDispatcher->onLinkContentBegin($node->uri, $title);
 					$this->processContents($node->contents);
 					$this->eventDispatcher->onLinkContentEnd();
 					break;

src/Handler/PhpObjectHandler.php

@@ -385,7 +385,7 @@ public function onLineBreakContent($hard)
 	 * @param string $title
 	 * @return void
 	 */
-	public function onLinkContentBegin($uri, $title)
+	public function onLinkContentBegin($uri, $title = null)
 	{
 		$link = (object)array(
 			KeyNameTranslator::ATTRIBUTE_COMMON_TYPE => KeyNameTranslator::TYPE_LINK,
@@ -403,7 +403,7 @@ public function onLinkContentBegin($uri, $title)
 	 * @param string $title
 	 * @return void
 	 */
-	public function onLinkContentEnd($uri, $title)
+	public function onLinkContentEnd($uri, $title = null)
 	{
 		$this->contentParents->pop();
 	}

src/Handler/XmlHandler.php

@@ -420,7 +420,7 @@ public function onLineBreakContent($hard)
 	 * @param string $title
 	 * @return void
 	 */
-	public function onLinkContentBegin($uri, $title)
+	public function onLinkContentBegin($uri, $title = null)
 	{
 		$linkNode = $this->document->createElement(KeyNameTranslator::TYPE_LINK);
 		$uriAttribute = $this->document->createAttribute(KeyNameTranslator::ATTRIBUTE_LINK_URI);
@@ -440,7 +440,7 @@ public function onLinkContentBegin($uri, $title)
 	 * @param string $title
 	 * @return void
 	 */
-	public function onLinkContentEnd($uri, $title)
+	public function onLinkContentEnd($uri, $title = null)
 	{
 		$this->contentParents->pop();
 	}