fix language configured in widget options

ImperaviRedactorAsset.php

@@ -15,6 +15,7 @@
  */
 class ImperaviRedactorAsset extends AssetBundle
 {
+    public $language;
     public $sourcePath = '@yii/imperavi/assets';
     public $js = [
         'redactor.js'
@@ -26,13 +27,16 @@ class ImperaviRedactorAsset extends AssetBundle
         'yii\web\JqueryAsset'
     ];
 
-    public function init() {
-
+    public function registerAssetFiles($view) {
         $appLanguage = strtolower(substr(Yii::$app->language , 0, 2)); //First 2 letters
 
-        if($appLanguage != 'en')
-            $this->js[] = 'lang/' . $appLanguage . '.js';
-
-        parent::init();
+        //check if the language configured or use appLanguage instead
+        $language = $this->language ? $this->language : $appLanguage;
+        $languageJs = 'lang/' . $language . '.js';
+        if($language != 'en'){
+            $this->js[] = $languageJs;
+        }
+
+        parent::registerAssetFiles($view);
     }
 }

Widget.php

@@ -89,7 +89,8 @@ public function run()
             echo Html::textarea($this->attribute, $this->value, $this->htmlOptions);
         }
 
-        ImperaviRedactorAsset::register($this->getView());
+        //register asset and configure language from options
+        ImperaviRedactorAsset::register($this->getView())->language = $this->options['lang'];
         $this->registerClientScript();
     }