/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.forms.binding;
import java.util.Iterator;
import java.util.Map;
import org.apache.avalon.framework.CascadingRuntimeException;
import org.apache.avalon.framework.context.Context;
import org.apache.cocoon.components.ContextHelper;
import org.apache.cocoon.components.flow.javascript.ScriptableMap;
import org.apache.cocoon.forms.formmodel.Widget;
import org.apache.cocoon.forms.util.JavaScriptHelper;
import org.apache.commons.jxpath.JXPathContext;
import org.apache.commons.jxpath.Pointer;
import org.mozilla.javascript.Function;
import org.mozilla.javascript.Scriptable;
/**
*
* @version $Id: JavaScriptJXPathBinding.java 517733 2007-03-13 15:37:22Z vgritsenko $
*/
public class JavaScriptJXPathBinding extends JXPathBindingBase {
final static String[] LOAD_PARAMS = { "widget", "jxpathPointer", "jxpathContext", "childBindings" };
final static String[] SAVE_PARAMS = { "widget", "jxpathPointer", "jxpathContext", "childBindings" };
private final Context avalonContext;
private final String id;
private final String path;
private final Function loadScript;
private final Function saveScript;
private final Scriptable childBindings;
private final Map childBindingsMap;
public JavaScriptJXPathBinding(Context context,
JXPathBindingBuilderBase.CommonAttributes commonAtts,
String id,
String path,
Function loadScript,
Function saveScript,
Map childBindings) {
super(commonAtts);
this.id = id;
this.path = path;
this.loadScript = loadScript;
this.saveScript = saveScript;
this.avalonContext = context;
// Set parent on child bindings
for (Iterator i = childBindings.values().iterator(); i.hasNext();) {
((Binding) i.next()).setParent(this);
}
this.childBindingsMap = childBindings;
this.childBindings = new ScriptableMap(childBindings);
}
public String getPath() { return path; }
public String getId() { return id; }
public Context getContext() { return avalonContext; }
public Function getLoadScript() { return loadScript; }
public Function getSaveScript() { return saveScript; }
public Map getChildBindingsMap() { return childBindingsMap; }
public void doLoad(Widget frmModel, JXPathContext jctx) {
if (this.loadScript != null) {
Widget widget = selectWidget(frmModel, this.id);
// Move to widget context
Pointer pointer = jctx.getPointer(this.path);
Map objectModel = ContextHelper.getObjectModel(this.avalonContext);
try {
JXPathContext newCtx = pointer.getNode() == null ? null :
jctx.getRelativeContext(pointer);
JavaScriptHelper.callFunction(this.loadScript, widget,
new Object[]{widget, pointer, newCtx, this.childBindings}, objectModel);
} catch (RuntimeException re) {
// rethrow
throw re;
} catch (Exception e) {
throw new CascadingRuntimeException("Error invoking JavaScript event handler", e);
}
} else {
if (getLogger().isInfoEnabled()) {
getLogger().info("[Javascript Binding] - loadForm: No javascript code available. Widget id=" + this.getId());
}
}
}
public void doSave(Widget frmModel, JXPathContext jctx) throws BindingException {
if (this.saveScript != null) {
Widget widget = selectWidget(frmModel, this.id);
// Move to widget context and create the path if needed
Pointer pointer = jctx.createPath(this.path);
JXPathContext widgetCtx = jctx.getRelativeContext(pointer);
try {
Map objectModel = ContextHelper.getObjectModel(this.avalonContext);
JavaScriptHelper.callFunction(this.saveScript, widget,
new Object[]{widget, pointer, widgetCtx, this.childBindings}, objectModel);
} catch (RuntimeException re) {
// rethrow
throw re;
} catch (Exception e) {
throw new CascadingRuntimeException("Error invoking JavaScript event handler", e);
}
} else {
if (getLogger().isInfoEnabled()) {
getLogger().info("[Javascript Binding] - saveForm: No code available on the javascript binding with id '" + getId() + "'");
}
}
}
}