/*******************************************************************************
* Copyright (c) 2006 Sybase, Inc. and others.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Sybase, Inc. - initial API and implementation
*******************************************************************************/
package org.eclipse.jst.pagedesigner.meta;
import org.eclipse.core.resources.IProject;
import org.eclipse.jst.pagedesigner.PDPlugin;
import org.eclipse.jst.pagedesigner.utils.StructuredModelUtil;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.wst.xml.core.internal.provisional.document.IDOMElement;
import org.eclipse.wst.xml.core.internal.provisional.document.IDOMModel;
import org.eclipse.wst.xml.core.internal.provisional.document.IDOMNode;
/**
* @author mengbo
* @version 1.5
* @deprecated
*/
public class BindingHandlerDelegate implements IBindingHandler {
private static final String BINDING_DISABLED_IMAGE_FILE = "PD_Binding_disabled.gif"; //$NON-NLS-1$
private static final String BINDING_IMAGE_FILE = "PD_Binding.gif"; //$NON-NLS-1$
/*
* (non-Javadoc)
*
* @see org.eclipse.jst.pagedesigner.meta.IBindingHandler#handleBinding(org.eclipse.swt.widgets.Shell,
* org.eclipse.wst.xml.core.internal.provisional.document.IDOMNode,
* org.eclipse.wst.xml.core.internal.provisional.document.IDOMElement,
* java.lang.String)
*/
public String handleBinding(Shell shell, IDOMNode ancester,
IDOMElement element, String currentValue) {
IBindingHandler handler = getDelegatedHandler(ancester, element);
if (handler != null) {
return handler
.handleBinding(shell, ancester, element, currentValue);
}
return null;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jst.pagedesigner.meta.IBindingHandler#isEnabled(org.eclipse.wst.xml.core.internal.provisional.document.IDOMNode,
* org.eclipse.wst.xml.core.internal.provisional.document.IDOMElement)
*/
// public boolean isEnabled(IDOMNode ancester, IDOMElement element)
// {
// IBindingHandler handler = getDelegatedHandler(ancester, element);
// return (handler == null) ? false : handler.isEnabled(ancester, element);
// }
/*
* (non-Javadoc)
*
* @see org.eclipse.jst.pagedesigner.meta.IBindingHandler#isEnabled(org.eclipse.wst.xml.core.internal.provisional.document.IDOMNode,
* org.eclipse.wst.xml.core.internal.provisional.document.IDOMElement,
* java.lang.String, java.lang.String,
* org.eclipse.jst.pagedesigner.meta.IAttributeDescriptor)
*/
public boolean isEnabled(IDOMNode ancester, IDOMElement element,
String uri, String tagName, IAttributeDescriptor attr) {
IBindingHandler handler = getDelegatedHandler(ancester, element);
return (handler == null) ? false : handler.isEnabled(ancester, element,
uri, tagName, attr);
}
// public boolean isEnabled(IDOMNode ancester, IDOMElement element,
// IPropertyPageDescriptor attr) {
// IBindingHandler handler = getDelegatedHandler(ancester, element);
// return (handler == null) ? false : handler.isEnabled(ancester, element,
// attr);
// }
/*
* (non-Javadoc)
*
* @see org.eclipse.jst.pagedesigner.meta.IBindingHandler#getImage()
*/
public Image getImage() {
return PDPlugin.getDefault().getImage(BINDING_IMAGE_FILE);
}
public Image getDisabledImage() {
return PDPlugin.getDefault().getImage(BINDING_DISABLED_IMAGE_FILE);
}
private IBindingHandler getDelegatedHandler(IDOMNode ancester,
IDOMElement element) {
IProject project = getProject(ancester, element);
if (project != null) {
Object obj = project.getAdapter(IBindingHandler.class);
if (obj instanceof IBindingHandler) {
return (IBindingHandler) obj;
}
}
return null;
}
private IProject getProject(IDOMNode ancester, IDOMElement element) {
IDOMModel model = getModel(ancester, element);
if (model != null) {
return StructuredModelUtil.getProjectFor(model);
}
return null;
}
private IDOMModel getModel(IDOMNode ancester, IDOMElement element) {
if (ancester != null) {
return ancester.getModel();
} else if (element != null) {
return element.getModel();
} else {
return null;
}
}
}