# HG changeset patch
# User Jaroslav Tulach <jaroslav.tulach@apidesign.org>
# Date 1365073706 -7200
# Node ID e8916518b38d6ba512a97cc1ac641e48cb52440b
# Parent  b43aaf398748ed20c0b1266b9c50b024bd854303
clone() on model classes

diff -r b43aaf398748 -r e8916518b38d javaquery/api/src/main/java/org/apidesign/bck2brwsr/htmlpage/KOList.java
--- a/javaquery/api/src/main/java/org/apidesign/bck2brwsr/htmlpage/KOList.java	Thu Apr 04 11:45:54 2013 +0200
+++ b/javaquery/api/src/main/java/org/apidesign/bck2brwsr/htmlpage/KOList.java	Thu Apr 04 13:08:26 2013 +0200
@@ -141,6 +141,10 @@
             m.valueHasMutated(dependant);
         }
     }
-    
+
+    @Override
+    public KOList clone() {
+        return (KOList)super.clone();
+    }
     
 }
diff -r b43aaf398748 -r e8916518b38d javaquery/api/src/main/java/org/apidesign/bck2brwsr/htmlpage/PageProcessor.java
--- a/javaquery/api/src/main/java/org/apidesign/bck2brwsr/htmlpage/PageProcessor.java	Thu Apr 04 11:45:54 2013 +0200
+++ b/javaquery/api/src/main/java/org/apidesign/bck2brwsr/htmlpage/PageProcessor.java	Thu Apr 04 13:08:26 2013 +0200
@@ -134,7 +134,7 @@
                 w.append("import org.apidesign.bck2brwsr.htmlpage.api.*;\n");
                 w.append("import org.apidesign.bck2brwsr.htmlpage.KOList;\n");
                 w.append("import org.apidesign.bck2brwsr.core.JavaScriptOnly;\n");
-                w.append("final class ").append(className).append(" {\n");
+                w.append("final class ").append(className).append(" implements Cloneable {\n");
                 w.append("  private Object json;\n");
                 w.append("  private boolean locked;\n");
                 w.append("  private org.apidesign.bck2brwsr.htmlpage.Knockout ko;\n");
@@ -148,6 +148,7 @@
                 w.append("    );\n");
                 w.append("  };\n");
                 writeToString(m.properties(), w);
+                writeClone(className, m.properties(), w);
                 w.append("}\n");
             } finally {
                 w.close();
@@ -540,32 +541,16 @@
 
     private String typeName(Element where, Property p) {
         String ret;
-        boolean isModel = false;
-        boolean isEnum = false;
-        try {
-            ret = p.type().getName();
-        } catch (MirroredTypeException ex) {
-            TypeMirror tm = processingEnv.getTypeUtils().erasure(ex.getTypeMirror());
-            final Element e = processingEnv.getTypeUtils().asElement(tm);
-            final Model m = e == null ? null : e.getAnnotation(Model.class);
-            if (m != null) {
-                ret = findPkgName(e) + '.' + m.className();
-                isModel = true;
-                models.put(e, m.className());
-            } else {
-                ret = tm.toString();
-            }
-            TypeMirror enm = processingEnv.getElementUtils().getTypeElement("java.lang.Enum").asType();
-            enm = processingEnv.getTypeUtils().erasure(enm);
-            isEnum = processingEnv.getTypeUtils().isSubtype(tm, enm);
-        }
+        boolean[] isModel = { false };
+        boolean[] isEnum = { false };
+        ret = checkType(p, isModel, isEnum);
         if (p.array()) {
             String bt = findBoxedType(ret);
             if (bt != null) {
                 return bt;
             }
         }
-        if (!isModel && !"java.lang.String".equals(ret) && !isEnum) {
+        if (!isModel[0] && !"java.lang.String".equals(ret) && !isEnum[0]) {
             String bt = findBoxedType(ret);
             if (bt == null) {
                 processingEnv.getMessager().printMessage(
@@ -786,6 +771,25 @@
         w.write("    return sb.toString();\n");
         w.write("  }\n");
     }
+    private void writeClone(String className, Property[] props, Writer w) throws IOException {
+        w.write("  public " + className + " clone() {\n");
+        w.write("    " + className + " ret = new " + className + "();\n");
+        for (Property p : props) {
+            if (!p.array()) {
+                boolean isModel[] = { false };
+                boolean isEnum[] = { false };
+                checkType(p, isModel, isEnum);
+                if (!isModel[0]) {
+                    w.write("    ret.prop_" + p.name() + " = prop_" + p.name() + ";\n");
+                    continue;
+                }
+            }
+            w.write("    ret.prop_" + p.name() + " = prop_" + p.name() + ".clone();\n");
+        }
+        
+        w.write("    return ret;\n");
+        w.write("  }\n");
+    }
 
     private String inPckName(Element e) {
         StringBuilder sb = new StringBuilder();
@@ -809,4 +813,26 @@
         }
         return pt.toString();
     }
+
+    private String checkType(Property p, boolean[] isModel, boolean[] isEnum) {
+        String ret;
+        try {
+            ret = p.type().getName();
+        } catch (MirroredTypeException ex) {
+            TypeMirror tm = processingEnv.getTypeUtils().erasure(ex.getTypeMirror());
+            final Element e = processingEnv.getTypeUtils().asElement(tm);
+            final Model m = e == null ? null : e.getAnnotation(Model.class);
+            if (m != null) {
+                ret = findPkgName(e) + '.' + m.className();
+                isModel[0] = true;
+                models.put(e, m.className());
+            } else {
+                ret = tm.toString();
+            }
+            TypeMirror enm = processingEnv.getElementUtils().getTypeElement("java.lang.Enum").asType();
+            enm = processingEnv.getTypeUtils().erasure(enm);
+            isEnum[0] = processingEnv.getTypeUtils().isSubtype(tm, enm);
+        }
+        return ret;
+    }
 }
diff -r b43aaf398748 -r e8916518b38d javaquery/api/src/test/java/org/apidesign/bck2brwsr/htmlpage/KnockoutTest.java
--- a/javaquery/api/src/test/java/org/apidesign/bck2brwsr/htmlpage/KnockoutTest.java	Thu Apr 04 11:45:54 2013 +0200
+++ b/javaquery/api/src/test/java/org/apidesign/bck2brwsr/htmlpage/KnockoutTest.java	Thu Apr 04 13:08:26 2013 +0200
@@ -27,7 +27,9 @@
 import org.apidesign.bck2brwsr.vmtest.BrwsrTest;
 import org.apidesign.bck2brwsr.vmtest.HtmlFragment;
 import org.apidesign.bck2brwsr.vmtest.VMTest;
+import static org.testng.Assert.assertEquals;
 import org.testng.annotations.Factory;
+import org.testng.annotations.Test;
 
 /**
  *
@@ -181,6 +183,28 @@
 
         assert first.getSex() == Sex.FEMALE : "Transverted to female: " + first.getSex();
     }
+    
+    @Test public void cloneModel() {
+        Person model = new Person();
+        
+        model.setFirstName("first");
+        Person snd = model.clone();
+        snd.setFirstName("clone");
+        assertEquals("first", model.getFirstName(), "Value has not changed");
+        assertEquals("clone", snd.getFirstName(), "Value has changed in clone");
+    }
+   
+    
+    @Test public void deepCopyOnClone() {
+        People model = new People();
+        model.getNicknames().add("Jarda");
+        assertEquals(model.getNicknames().size(), 1, "One element");
+        People snd = model.clone();
+        snd.getNicknames().clear();
+        assertEquals(snd.getNicknames().size(), 0, "Clone is empty");
+        assertEquals(model.getNicknames().size(), 1, "Still one element");
+    }
+    
      
     @OnFunction
     static void call(KnockoutModel m, String data) {