MAGETWO-43599: Prepare Pull Request for Gallery Widget on Configurable Product

- Fix var parser

Author: guz-anton

lib/internal/Magento/Framework/Config/View.php

@@ -107,8 +107,10 @@ protected function _extractData(\DOMDocument $dom)
     }
 
     /**
+     * Recursive parser for <var> nodes
+     *
      * @param \DOMElement $node
-     * @return string|[]
+     * @return string|boolean|number|null|[]
      */
     protected function parseVarElement(\DOMElement $node)
     {
@@ -120,7 +122,22 @@ protected function parseVarElement(\DOMElement $node)
             }
         }
         if (!count($result)) {
-            $result = $node->nodeValue;
+            switch ($node->nodeValue) {
+                case 'false':
+                    $result = false;
+                    break;
+                case 'true':
+                    $result = true;
+                    break;
+                case 'null':
+                    $result = null;
+                    break;
+                default:
+                    $result = $node->nodeValue;
+                    if ($result == strval(floatval($result))) {
+                        $result = floatval($result);
+                    }
+            };
         }
 
         return $result;