/* -*- Mode: java; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
============================================================================
The Apache Software License, Version 1.1
============================================================================
Copyright (C) 1999-2003 The Apache Software Foundation. All rights reserved.
Redistribution and use in source and binary forms, with or without modifica-
tion, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. The end-user documentation included with the redistribution, if any, must
include the following acknowledgment: "This product includes software
developed by the Apache Software Foundation (http://www.apache.org/)."
Alternately, this acknowledgment may appear in the software itself, if
and wherever such third-party acknowledgments normally appear.
4. The names "Apache Cocoon" and "Apache Software Foundation" must not be
used to endorse or promote products derived from this software without
prior written permission. For written permission, please contact
apache@apache.org.
5. Products derived from this software may not be called "Apache", nor may
"Apache" appear in their name, without prior written permission of the
Apache Software Foundation.
THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU-
DING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.apache.cocoon.components.flow.javascript;
import java.util.LinkedList;
import java.util.List;
import org.apache.commons.jxpath.DynamicPropertyHandler;
import org.apache.commons.jxpath.ri.model.NodePointer;
import org.apache.commons.jxpath.ri.model.dynamic.DynamicPropertyPointer;
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 CVS $Id: ScriptablePropertyPointer.java,v 1.4 2003/10/10 10:48:25 cziegeler Exp $
*/
public class ScriptablePropertyPointer extends DynamicPropertyPointer {
DynamicPropertyHandler handler;
public ScriptablePropertyPointer(NodePointer parent,
DynamicPropertyHandler handler) {
super(parent, handler);
this.handler = handler;
}
public int getLength() {
Object obj = getBaseValue();
if (obj instanceof Scriptable) {
Scriptable node = (Scriptable)obj;
if (node instanceof NativeArray) {
return (int)((NativeArray)node).jsGet_length();
}
if (ScriptableObject.hasProperty(node, "length")) {
Object val = ScriptableObject.getProperty(node, "length");
if (val instanceof Number) {
return ((Number)val).intValue();
}
}
}
return super.getLength();
}
public Object getImmediateNode() {
Object value;
if (index == WHOLE_COLLECTION) {
value = getBaseValue();
}
else {
value = getBaseValue();
if (value instanceof Scriptable) {
Object property =
ScriptableObject.getProperty((Scriptable)value, index);
if (property != Scriptable.NOT_FOUND) {
value = property; // hack?
}
} else {
return super.getImmediateNode();
}
}
if (value instanceof Wrapper) {
value = ((Wrapper)value).unwrap();
}
return value;
}
public Object getValue() {
Object val = getNode();
if (val instanceof NativeArray) {
NativeArray arr = (NativeArray)val;
List list = new LinkedList();
int len = (int)arr.jsGet_length();
for (int i = 0; i < len; i++) {
Object obj = arr.get(i, arr);
if (obj == Undefined.instance) {
obj = null;
}
list.add(obj);
}
return list;
}
return super.getValue();
}
public void setValue(Object value){
if (index == WHOLE_COLLECTION){
handler.setProperty(getBean(), getPropertyName(), value);
} else {
Object val = handler.getProperty(getBean(), getPropertyName());
if (val instanceof Scriptable) {
ScriptableObject.putProperty((Scriptable)val, index, value);
} else {
super.setValue(value);
}
}
}
public void remove(){
if (index == WHOLE_COLLECTION){
handler.setProperty(getBean(), "length", new Integer(0));
} else {
Object val = handler.getProperty(getBean(), getPropertyName());
if (val instanceof Scriptable) {
try {
ScriptableObject.deleteProperty((Scriptable)val, index);
} catch (Exception e) {
e.printStackTrace();
}
} else {
super.remove();
}
}
}
public boolean isCollection() {
Object obj = getBaseValue();
if (obj instanceof NativeArray) {
return true;
}
return super.isCollection();
}
public String asPath(){
Object obj = getBaseValue();
if (!(obj instanceof Scriptable)) {
return super.asPath();
}
StringBuffer buffer = new StringBuffer();
buffer.append(getParent().asPath());
if (buffer.length() == 0){
buffer.append("/.");
}
else if (buffer.charAt(buffer.length() - 1) == '/'){
buffer.append('.');
}
buffer.append("[@name = '");
buffer.append(escape(getPropertyName()));
buffer.append("']");
if (index != WHOLE_COLLECTION && (obj instanceof NativeArray)) {
buffer.append('[').append(index+1).append(']');
}
return buffer.toString();
}
private String escape(String string){
int index = string.indexOf('\'');
while (index != -1){
string = string.substring(0, index) + "'" + string.substring(index + 1);
index = string.indexOf('\'');
}
index = string.indexOf('\"');
while (index != -1){
string = string.substring(0, index) + """ + string.substring(index + 1);
index = string.indexOf('\"');
}
return string;
}
}