/*
* Copyright 1999-2004 The Apache Software Foundation.
*
* Licensed 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.
*/
package org.apache.cocoon.woody.flow.javascript;
import org.apache.cocoon.woody.formmodel.AggregateField;
import org.apache.cocoon.woody.formmodel.BooleanField;
import org.apache.cocoon.woody.formmodel.Field;
import org.apache.cocoon.woody.formmodel.MultiValueField;
import org.apache.cocoon.woody.formmodel.Output;
import org.apache.cocoon.woody.formmodel.Repeater;
import org.apache.cocoon.woody.formmodel.Widget;
import org.mozilla.javascript.Context;
import org.mozilla.javascript.NativeArray;
import org.mozilla.javascript.Scriptable;
import org.mozilla.javascript.ScriptableObject;
import org.mozilla.javascript.Undefined;
import org.mozilla.javascript.Wrapper;
/**
* @version $Id: ScriptableWidget.java,v 1.9 2004/03/09 13:54:25 reinhard Exp $
*
*/
public class ScriptableWidget extends ScriptableObject {
Widget delegate;
public String getClassName() {
return "Widget";
}
public ScriptableWidget() {
}
public ScriptableWidget(Object widget) {
this.delegate = (Widget)unwrap(widget);
}
private Object unwrap(Object obj) {
if (obj == Undefined.instance) {
return null;
}
if (obj instanceof Wrapper) {
return ((Wrapper)obj).unwrap();
}
return obj;
}
private ScriptableWidget wrap(Widget w) {
ScriptableWidget result = new ScriptableWidget(w);
result.setPrototype(getClassPrototype(this, "Widget"));
result.setParentScope(getParentScope());
return result;
}
public boolean has(String id, Scriptable start) {
if (delegate instanceof Repeater) {
if (id.equals("length")) {
return true;
}
} else if (delegate instanceof MultiValueField) {
if (id.equals("length")) {
return true;
}
} else if (delegate != null) {
Widget sub = delegate.getWidget(id);
if (sub != null) {
return true;
}
}
return super.has(id, start);
}
public boolean has(int index, Scriptable start) {
if (delegate instanceof Repeater) {
Repeater repeater = (Repeater)delegate;
return index >= 0 && index < repeater.getSize();
}
if (delegate instanceof MultiValueField) {
Object[] values = (Object[])delegate.getValue();
return index >= 0 && index < values.length;
}
return super.has(index, start);
}
public Object get(String id, Scriptable start) {
if (delegate instanceof Repeater) {
if (id.equals("length")) {
Repeater repeater = (Repeater)delegate;
return new Integer(repeater.getSize());
}
} else if (delegate instanceof MultiValueField) {
if (id.equals("length")) {
Object[] values = (Object[])delegate.getValue();
return new Integer(values.length);
}
} else if (delegate != null) {
Widget sub = delegate.getWidget(id);
if (sub != null) {
if (sub instanceof Field ||
sub instanceof BooleanField ||
sub instanceof AggregateField ||
sub instanceof Output) {
return sub.getValue();
}
return wrap(sub);
}
}
return super.get(id, start);
}
public Object get(int index, Scriptable start) {
if (delegate instanceof Repeater) {
Repeater repeater = (Repeater)delegate;
if (index >= 0) {
while (index >= repeater.getSize()) {
repeater.addRow();
}
return wrap(repeater.getRow(index));
}
}
if (delegate instanceof MultiValueField) {
Object[] values = (Object[])delegate.getValue();
if (index >= 0 && index < values.length) {
return values[index];
} else {
return NOT_FOUND;
}
}
return super.get(index, start);
}
public void delete(String id) {
super.delete(id);
}
public void delete(int index) {
if (delegate instanceof Repeater) {
Repeater repeater = (Repeater)delegate;
if (index >= 0 && index < repeater.getSize()) {
repeater.removeRow(index);
return;
}
} else if (delegate instanceof MultiValueField) {
MultiValueField field = (MultiValueField)delegate;
Object[] values = (Object[])field.getValue();
if (values != null && values.length > index) {
Object[] newValues = new Object[values.length-1];
int i;
for (i = 0; i < index; i++) {
newValues[i] = values[i];
}
i++;
for (;i < values.length;i++) {
newValues[i-1] = values[i];
}
field.setValues(newValues);
}
return;
}
super.delete(index);
}
public void put(String id, Scriptable start, Object value) {
if (delegate instanceof Repeater) {
if (id.equals("length")) {
int len = (int)Context.toNumber(value);
Repeater repeater = (Repeater)delegate;
int size = repeater.getSize();
if (size > len) {
while (repeater.getSize() > len) {
repeater.removeRow(repeater.getSize() -1);
}
} else {
for (int i = size; i < len; ++i) {
repeater.addRow();
}
}
}
} else if (delegate != null) {
Widget sub = delegate.getWidget(id);
if (sub instanceof Field) {
Field field = (Field)sub;
value = unwrap(value);
if (value instanceof Double) {
// make woody accept a JS Number
Class typeClass =
field.getFieldDefinition().getDatatype().getTypeClass();
if (typeClass == long.class || typeClass == Long.class) {
value = new Long(((Number)value).longValue());
} else if (typeClass == int.class || typeClass == Integer.class) {
value = new Integer(((Number)value).intValue());
} else if (typeClass == float.class || typeClass == Float.class) {
value = new Float(((Number)value).floatValue());
} else if (typeClass == short.class || typeClass == Short.class) {
value = new Short(((Number)value).shortValue());
}
}
field.setValue(value);
return;
} else if (sub instanceof BooleanField) {
BooleanField field = (BooleanField)sub;
value = unwrap(value);
field.setValue(value);
} else if (sub instanceof Output) {
Output field = (Output)sub;
value = unwrap(value);
field.setValue(value);
} else if (sub instanceof Repeater) {
Repeater repeater = (Repeater)sub;
if (value instanceof NativeArray) {
NativeArray arr = (NativeArray)value;
Object length = getProperty(arr, "length");
int len = ((Number)length).intValue();
for (int i = repeater.getSize(); i >= len; --i) {
repeater.removeRow(i);
}
for (int i = 0; i < len; i++) {
Object elemValue = getProperty(arr, i);
if (elemValue instanceof Scriptable) {
Scriptable s = (Scriptable)elemValue;
Object[] ids = s.getIds();
ScriptableWidget wid = wrap(repeater.getRow(i));
for (int j = 0; j < ids.length; j++) {
String idStr = ids[j].toString();
wid.put(idStr, wid, getProperty(s, idStr));
}
}
}
return;
}
} else if (sub instanceof MultiValueField) {
MultiValueField field = (MultiValueField)sub;
Object[] values = null;
if (value instanceof NativeArray) {
NativeArray arr = (NativeArray)value;
Object length = getProperty(arr, "length");
int len = ((Number)length).intValue();
values = new Object[len];
for (int i = 0; i < len; i++) {
Object elemValue = getProperty(arr, i);
values[i] = unwrap(elemValue);
}
} else if (value instanceof Object[]) {
values = (Object[])value;
}
field.setValues(values);
} else {
if (value instanceof Scriptable) {
Scriptable s = (Scriptable)value;
Object[] ids = s.getIds();
ScriptableWidget wid = wrap(sub);
for (int j = 0; j < ids.length; j++) {
String idStr = ids[j].toString();
wid.put(idStr, wid, getProperty(s, idStr));
}
return;
}
}
}
super.put(id, start, value);
}
public String jsGet_id() {
return delegate.getId();
}
public Scriptable jsGet_parent() {
if (delegate != null) {
return wrap(delegate.getParent());
}
return Undefined.instance;
}
public boolean jsFunction_equals(Object other) {
if (other instanceof ScriptableWidget) {
ScriptableWidget otherWidget = (ScriptableWidget)other;
return delegate.equals(otherWidget.delegate);
}
return false;
}
public void jsFunction_remove(int index) {
delete(index);
}
}