Issue #3377457 by guillaume-aveline: [1.x] Allow multiple previews for each pattern

Closes #3377457

src/Definition/PatternDefinitionVariant.php

@@ -21,6 +21,7 @@ class PatternDefinitionVariant implements \ArrayAccess {
     'label' => NULL,
     'description' => NULL,
     'use' => NULL,
+    'preview' => NULL,
   ];
 
   /**
@@ -122,4 +123,27 @@ class PatternDefinitionVariant implements \ArrayAccess {
     $this->definition['use'] = $use;
     return $this;
   }
+  
+  /**
+   * Get Preview property.
+   *
+   * @return array
+   *   Property value.
+   */
+  public function getPreview() {
+    return $this->definition['preview'];
+  }
+
+  /**
+   * Set Preview property.
+   *
+   * @param array $preview
+   *   Property value.
+   *
+   * @return $this
+   */
+  public function setPreview($preview) {
+    $this->definition['preview'] = $preview;
+    return $this;
+  }  
 }