/************************************************************************************
* Copyright (c) 2008 William Chen. *
* *
* 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 *
* *
* Use is subject to the terms of Eclipse Public License v1.0. *
* *
* Contributors: *
* William Chen - initial API and implementation. *
************************************************************************************/
package org.dyno.visual.swing.parser.listener;
import java.beans.MethodDescriptor;
import java.lang.reflect.Method;
import org.eclipse.jdt.core.ICompilationUnit;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jdt.core.IMember;
import org.eclipse.jdt.core.IMethod;
import org.eclipse.jdt.core.IType;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.core.Signature;
import org.eclipse.jdt.core.dom.rewrite.ImportRewrite;
import org.eclipse.jdt.ui.JavaUI;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.IFileEditorInput;
@SuppressWarnings("unchecked")
public class EventDelegation implements IEventMethod {
private MethodDescriptor methodDesc;
private String methodName;
public EventDelegation(MethodDescriptor methodDesc, String methodName) {
this.methodDesc = methodDesc;
this.methodName = methodName;
}
public String getDisplayName() {
return methodName;
}
public void editCode(IEditorPart editor) {
Class<?>[] pd = methodDesc.getMethod().getParameterTypes();
if (pd.length > 0) {
String pname = pd[0].getName();
int dot = pname.lastIndexOf('.');
if (dot != -1)
pname = pname.substring(dot + 1);
String eventTypeSig = Signature.createTypeSignature(pname, false);
IFileEditorInput file = (IFileEditorInput) editor.getEditorInput();
ICompilationUnit unit = JavaCore.createCompilationUnitFrom(file.getFile());
String name = file.getName();
dot = name.lastIndexOf('.');
if (dot != -1)
name = name.substring(0, dot);
IType type = unit.getType(name);
IMember member = type.getMethod(methodName,
new String[] { eventTypeSig });
JavaUI.revealInEditor(editor, (IJavaElement) member);
}
}
public String createEventMethod(IType type, ImportRewrite imports) {
Method mEvent = methodDesc.getMethod();
Class[] pTypes = mEvent.getParameterTypes();
String pcName = pTypes[0].getName();
pcName = imports.addImport(pcName);
String[] paras = new String[] { Signature.createTypeSignature(pcName,
false) };
IMethod eventMethod = type.getMethod(methodName, paras);
if (!eventMethod.exists()) {
StringBuilder builder = new StringBuilder(0);
builder.append("private void ");
builder.append(methodName + "(");
builder.append(pcName);
builder.append(" event");
builder.append("){\n");
builder.append("}\n");
return builder.toString();
}
return null;
}
public String createAddListenerCode() {
return methodName + "(event);\n";
}
}