GUACAMOLE-470: Allow TEXT fields to be associated with predefined sets of known-good values.

guacamole-ext/src/main/java/org/apache/guacamole/form/TextField.java

@@ -19,6 +19,8 @@
 
 package org.apache.guacamole.form;
 
+import java.util.Collection;
+
 /**
  * Represents a basic text field. The field may generally contain any data, but
  * may not contain multiple lines.
@@ -35,6 +37,21 @@ public class TextField extends Field {
         super(name, Field.Type.TEXT);
     }
 
+    /**
+     * Creates a new TextField with the given name and possible values. As a
+     * text field may contain any data by definition, any provided options are
+     * simply known-good values.
+     *
+     * @param name
+     *     The unique name to associate with this field.
+     *
+     * @param options
+     *     A set of known legal options for this field.
+     */
+    public TextField(String name, Collection<String> options) {
+        super(name, Field.Type.TEXT, options);
+    }
+
     /**
      * Parses the given string, interpreting empty strings as equivalent to
      * null. For all other cases, the given string is returned verbatim.