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.

guacamole/src/main/webapp/app/form/controllers/textFieldController.js

@@ -0,0 +1,40 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+
+/**
+ * Controller for text fields.
+ */
+angular.module('form').controller('textFieldController', ['$scope', '$injector',
+    function textFieldController($scope, $injector) {
+
+    /**
+     * The ID of the datalist element that should be associated with the text
+     * field, providing a set of known-good values. If no such values are
+     * defined, this will be null.
+     *
+     * @type String
+     */
+    $scope.dataListId = null;
+
+    // Generate unique ID for datalist, if applicable
+    if ($scope.field.options && $scope.field.options.length)
+        $scope.dataListId = $scope.field.name + '-datalist';
+
+}]);

guacamole/src/main/webapp/app/form/services/formService.js

@@ -44,6 +44,8 @@ angular.module('form').provider('formService', function formServiceProvider() {
          * @type FieldType
          */
         'TEXT' : {
+            module      : 'form',
+            controller  : 'textFieldController',
             templateUrl : 'app/form/templates/textField.html'
         },
 

guacamole/src/main/webapp/app/form/templates/textField.html

@@ -1 +1,7 @@
-<input type="text" ng-model="model" autocorrect="off" autocapitalize="off"/>
+<div class="text-field">
+    <input type="text" ng-model="model" autocorrect="off" autocapitalize="off" ng-attr-list="{{ dataListId }}"/>
+    <datalist ng-if="dataListId" id="{{ dataListId }}">
+        <option ng-repeat="option in field.options | orderBy: option"
+                value="{{ option }}">{{ getFieldOption(option) | translate }}</option>
+    </datalist>
+</div>