1.1 --- a/json/src/main/java/org/apidesign/html/json/spi/Proto.java	Fri Jan 10 11:26:38 2014 +0100
     1.2 +++ b/json/src/main/java/org/apidesign/html/json/spi/Proto.java	Thu Jan 30 11:36:32 2014 +0100
     1.3 @@ -70,6 +70,7 @@
     1.4      private final net.java.html.BrwsrCtx context;
     1.5      private boolean locked;
     1.6      private org.netbeans.html.json.impl.Bindings ko;
     1.7 +    private Proto onMutated;
     1.8  
     1.9      Proto(Object obj, Type type, BrwsrCtx context) {
    1.10          this.obj = obj;
    1.11 @@ -115,11 +116,36 @@
    1.12       *@param propName name of the changed property
    1.13       */
    1.14      public void valueHasMutated(String propName) {
    1.15 +        if (onMutated != null) {
    1.16 +            onMutated.valueHasMutated(propName);
    1.17 +        }
    1.18          if (ko != null) {
    1.19              ko.valueHasMutated(propName);
    1.20 +            final String[] names = type.propertyNames;
    1.21 +            for (int i = 0; i < names.length; i++) {
    1.22 +                if (names[i].equals(propName)) {
    1.23 +                    type.onChange(obj, i);
    1.24 +                }
    1.25 +            }
    1.26          }
    1.27      }
    1.28      
    1.29 +    /** Allows another prototype to be notified when a value is mutated using
    1.30 +     * {@link #valueHasMutated(java.lang.String)} method of this object.
    1.31 +     * This method can be called only once. It is primarily useful for
    1.32 +     * support of {@link Model}s on <code>enum</code>s.
    1.33 +     * 
    1.34 +     * @param m object which {@link #valueHasMutated(java.lang.String)} 
    1.35 +     *    method should be called when there is a change in a property
    1.36 +     *    of this proto object.
    1.37 +     * @since 0.8
    1.38 +     */
    1.39 +    public void onValueHasMutated(Proto m) {
    1.40 +        assert m != null;
    1.41 +        assert onMutated == null;
    1.42 +        onMutated = m;
    1.43 +    }
    1.44 +    
    1.45      /** Initializes the associated model in the current {@link #getContext() context}.
    1.46       * In case of <em>knockout.js</em> technology, applies given bindings 
    1.47       * of the current model to the <em>body</em> element of the page.
    1.48 @@ -662,5 +688,5 @@
    1.49              return type.cast(val);
    1.50          }
    1.51  
    1.52 -    }
    1.53 +    } // end of Type
    1.54  }