Package org.dyno.visual.swing.parser.listener

Source Code of org.dyno.visual.swing.parser.listener.StandaloneClassModel

/************************************************************************************
* 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 org.dyno.visual.swing.parser.ParserPlugin;
import org.dyno.visual.swing.plugin.spi.WidgetAdapter;
import org.eclipse.jdt.core.ICompilationUnit;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.IMember;
import org.eclipse.jdt.core.IMethod;
import org.eclipse.jdt.core.IPackageFragment;
import org.eclipse.jdt.core.IPackageFragmentRoot;
import org.eclipse.jdt.core.IType;
import org.eclipse.jdt.core.Signature;
import org.eclipse.jdt.core.dom.TypeDeclaration;
import org.eclipse.jdt.ui.JavaUI;
import org.eclipse.ui.IEditorPart;

public class StandaloneClassModel extends BaseClassModel {
 
  public void editMethod(IEditorPart editor, MethodDescriptor methodDesc) {
    Class<?>[] pd = methodDesc.getMethod().getParameterTypes();
    if (pd.length > 0&&listenerUnit!=null) {
      String pname = pd[0].getName();
      int dot = pname.lastIndexOf('.');
      if (dot != -1)
        pname = pname.substring(dot + 1);
     
      String eventTypeSig = Signature.createTypeSignature(pname, false);
      IType meType = listenerUnit.getType(className);
      IMember member = meType.getMethod(methodDesc.getName(),new String[] {eventTypeSig });
      try {
        JavaUI.openInEditor((IJavaElement) member);
      } catch (Exception e) {
         ParserPlugin.getLogger().error(e);
      }
    }   
  }
 
  protected boolean processAddMethod(TypeDeclaration type, MethodDescriptor mListener) {
    IType declaringType=findDeclaringType(adapter);
    if(declaringType==null)
      return false;
    listenerUnit = declaringType.getCompilationUnit();
    try {
      String mListenerName = mListener.getName();
      IMethod[] mds = declaringType.getMethods();
      for (IMethod md : mds) {
        if (md.getElementName().equals(mListenerName)) {
          addMethod(mListener);
          return true;
        }
      }
    } catch (Exception e) {
      ParserPlugin.getLogger().error(e);
    }
    return false;
  }
 
  private IType findDeclaringType(WidgetAdapter adapter){
    ICompilationUnit unit = adapter.getCompilationUnit();
    if(unit==null)
      return null;
    IJavaProject javaPrj= unit.getJavaProject();
    try{
      IJavaElement[] children = javaPrj.getChildren();
      for(IJavaElement child:children){
        if(child instanceof IPackageFragmentRoot){
          IPackageFragmentRoot root=(IPackageFragmentRoot) child;
          if(!root.isArchive()){
            IJavaElement[] children2 = root.getChildren();
            for(IJavaElement child2:children2){
              if(child2 instanceof IPackageFragment){
                IPackageFragment pkg=(IPackageFragment) child2;
                IJavaElement[] children3 = pkg.getChildren();
                for(IJavaElement child3:children3){
                  if(child3 instanceof ICompilationUnit){
                    ICompilationUnit icu=(ICompilationUnit)child3;
                    IType type2 = icu.getType(className);
                    if(icu.getElementName().equals((className+".java"))&&type2.exists()){
                      return type2;
                    }
                  }
                }
              }
            }
          }
        }
      }
    }catch(Exception e){
      ParserPlugin.getLogger().error(e);
    }
    return null;
  }
  private ICompilationUnit listenerUnit;
 
  protected IType getMeType(IType type) {
    return listenerUnit.getType(className);
  }
}

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