# HG changeset patch
# User Jaroslav Tulach <jaroslav.tulach@apidesign.org>
# Date 1358712106 -3600
# Node ID a06c98795b013a88c1d629b615c88127f7cab85d
# Parent  f96c44dac48abd9abf0e129717d73e7ec2e76e9f
Refresh the knockout model when a setter is called

diff -r f96c44dac48a -r a06c98795b01 javaquery/api/src/main/java/org/apidesign/bck2brwsr/htmlpage/Knockout.java
--- a/javaquery/api/src/main/java/org/apidesign/bck2brwsr/htmlpage/Knockout.java	Sun Jan 20 21:01:10 2013 +0100
+++ b/javaquery/api/src/main/java/org/apidesign/bck2brwsr/htmlpage/Knockout.java	Sun Jan 20 21:01:46 2013 +0100
@@ -26,15 +26,13 @@
  */
 @ExtraJavaScript(resource = "org/apidesign/bck2brwsr/htmlpage/knockout-2.2.1.js")
 public final class Knockout {
-
-
     private Knockout() {
     }
     
-    public static <M> void applyBindings(
+    public static <M> Knockout applyBindings(
         Class<M> modelClass, M model, String[] propsGettersAndSetters
     ) {
-        Object bindings = new Object();
+        Knockout bindings = new Knockout();
         for (int i = 0; i < propsGettersAndSetters.length; i += 3) {
             bind(bindings, model, propsGettersAndSetters[i],
                 propsGettersAndSetters[i + 1],
@@ -42,6 +40,13 @@
             );
         }
         applyBindings(bindings);
+        return bindings;
+    }
+
+    @JavaScriptBody(args = { "prop" }, body =
+        "this[prop].valueHasMutated();"
+    )
+    public void valueHasMutated(String prop) {
     }
     
     @JavaScriptBody(args = { "bindings", "model", "prop", "getter", "setter" }, body =
diff -r f96c44dac48a -r a06c98795b01 javaquery/api/src/main/java/org/apidesign/bck2brwsr/htmlpage/PageProcessor.java
--- a/javaquery/api/src/main/java/org/apidesign/bck2brwsr/htmlpage/PageProcessor.java	Sun Jan 20 21:01:10 2013 +0100
+++ b/javaquery/api/src/main/java/org/apidesign/bck2brwsr/htmlpage/PageProcessor.java	Sun Jan 20 21:01:46 2013 +0100
@@ -108,9 +108,10 @@
                     List<String> propsGetSet = new ArrayList<String>();
                     generateProperties(w, p.properties(), propsGetSet);
                     generateComputedProperties(w, e.getEnclosedElements(), propsGetSet);
+                    w.append("  private static org.apidesign.bck2brwsr.htmlpage.Knockout ko;\n");
                     if (!propsGetSet.isEmpty()) {
                         w.write("public static void applyBindings() {\n");
-                        w.write("  org.apidesign.bck2brwsr.htmlpage.Knockout.applyBindings(");
+                        w.write("  ko = org.apidesign.bck2brwsr.htmlpage.Knockout.applyBindings(");
                         w.write(className + ".class, new " + className + "(), ");
                         w.write("new String[] {\n");
                         String sep = "";
@@ -270,6 +271,7 @@
             w.write("}\n");
             w.write("public static void " + gs[1] + "(" + tn + " v) {\n");
             w.write("  prop_" + p.name() + " = v;\n");
+            w.write("  if (ko != null) ko.valueHasMutated(\"" + p.name() + "\");\n");
             w.write("}\n");
             
             props.add(p.name());