Builder: return object when it's already built

https://fedorahosted.org/freeipa/ticket/3235

install/ui/src/freeipa/_base/Builder.js

@@ -84,6 +84,7 @@ define(['dojo/_base/declare',
             var f,c;
 
             if (spec === undefined || spec === null) return null;
+            if (!construct.is_spec(spec)) return spec;
 
             context = context || {};
 

install/ui/src/freeipa/_base/construct.js

@@ -34,11 +34,27 @@ define(['dojo/_base/declare',
          */
         is_ctor: function(obj) {
 
-            // TODO: Find better method. Check by extend might not be very
-            // reliable.
             return typeof obj === 'function' && typeof obj.extend === 'function';
         },
 
+        /**
+         *  Finds out if object is a spec object.
+         *
+         *  Object is not a spec object when any of following applies:
+         *   * has __fw_obj === true
+         *   * has isInstanceOf function - basically tells if it's a instance of
+         *                                 dojo-based class
+         *
+         */
+        is_spec: function(obj) {
+            var ret = false;
+            if (typeof obj === 'object') {
+                ret = obj.__fw_obj === true ||
+                      typeof obj.isInstanceOf === 'function';
+            }
+            return !ret;
+        },
+
         /**
          * Creates copy of construction specification
          *

install/ui/src/freeipa/ipa.js

@@ -293,9 +293,26 @@ var IPA = function() {
         }
     };
 
+    that.obj_cls = function() {};
+    that.obj_cls.prototype.__fw_obj = true;
+
     return that;
 }();
 
+/**
+ * Basic object
+ *
+ * Framework objects created by factories should use this instead of {} when
+ * creating base objects. As an alternative they can just set __fw_obj
+ * property.
+ *
+ * __fw_obj property serves for telling the framework that it's instantiated
+ * object and not an object specification (spec).
+ */
+IPA.object = function() {
+    return new IPA.obj_cls();
+};
+
 IPA.get_credentials = function() {
     var status;
 

install/ui/test/build_tests.js

@@ -59,6 +59,7 @@ test('Testing builder', function() {
 
     var o2 = b2.build({});
     var o21 = b2.build({ foo: 'baz'});
+    var o22 = b2.build(o21);
 
     var r1 = { foo: 'bar' };
     var r11 = { foo: 'baz' };
@@ -71,6 +72,8 @@ test('Testing builder', function() {
     deepEqual(o2, r2, 'Constructor, default');
     deepEqual(o21, r21, 'Constructor, spec use');
 
+    strictEqual(o21, o22, 'Don\'t build built object');
+
 });
 
 test('Testing Spec_mod', function() {