Enable max length for textarea field

src/Forms/TextField.php

@@ -79,6 +79,13 @@ class TextField extends FormField
         );
     }
 
+    public function getSchemaDataDefaults()
+    {
+        $data = parent::getSchemaDataDefaults();
+        $data['data']['maxlength'] =  $this->getMaxLength();
+        return $data;
+    }
+
     /**
      * @return string
      */

src/Forms/TextareaField.php

@@ -45,16 +45,20 @@ class TextareaField extends FormField
      */
     protected $cols = 20;
 
+    /**
+     * @var int
+     */
+    protected $maxLength;
+
     /**
      * Set textarea specific schema data
      */
     public function getSchemaDataDefaults()
     {
         $data = parent::getSchemaDataDefaults();
-        
         $data['data']['rows'] = $this->getRows();
         $data['data']['columns'] = $this->getColumns();
-        
+        $data['data']['maxlength'] =  $this->getMaxLength();
         return $data;
     }
 
@@ -106,6 +110,25 @@ class TextareaField extends FormField
         return $this->cols;
     }
 
+    /**
+     * @param int $maxLength
+     * @return $this
+     */
+    public function setMaxLength($maxLength)
+    {
+        $this->maxLength = $maxLength;
+
+        return $this;
+    }
+
+    /**
+     * @return null|int
+     */
+    public function getMaxLength()
+    {
+        return $this->maxLength;
+    }
+
     /**
      * {@inheritdoc}
      */
@@ -117,7 +140,8 @@ class TextareaField extends FormField
                 'rows' => $this->getRows(),
                 'cols' => $this->getColumns(),
                 'value' => null,
-                'type' => null
+                'type' => null,
+                'maxlength' => $this->getMaxLength(),
             )
         );
     }

tests/php/Forms/FormSchemaTest/testSchemaValidation.json

@@ -30,6 +30,7 @@
             "disabled": false,
             "autoFocus": false,
             "customValidationMessage": "",
+            "maxLength": 40,
             "validation": {
                 "required": true,
                 "max": {