case-study/jdt-after/ui/org/eclipse/jdt/internal/ui/dialogs/MultiMainTypeSelectionDialog.java

   1 /*******************************************************************************
   2  * Copyright (c) 2000, 2011 IBM Corporation and others.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Eclipse Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/epl-v10.html
   7  *
   8  * Contributors:
   9  *     IBM Corporation - initial API and implementation
  10  *******************************************************************************/
  11 package org.eclipse.jdt.internal.ui.dialogs;
  12
  13
  14 import java.lang.reflect.InvocationTargetException;
  15
  16 import org.eclipse.swt.widgets.Shell;
  17
  18 import org.eclipse.core.runtime.Assert;
  19
  20 import org.eclipse.jface.operation.IRunnableContext;
  21
  22 import org.eclipse.ui.PlatformUI;
  23 import org.eclipse.ui.dialogs.ElementListSelectionDialog;
  24
  25 import org.eclipse.jdt.core.IType;
  26 import org.eclipse.jdt.core.search.IJavaSearchScope;
  27
  28 import org.eclipse.jdt.ui.JavaElementLabelProvider;
  29
  30 import org.eclipse.jdt.internal.ui.IJavaHelpContextIds;
  31 import org.eclipse.jdt.internal.ui.JavaUIMessages;
  32 import org.eclipse.jdt.internal.ui.util.ExceptionHandler;
  33 import org.eclipse.jdt.internal.ui.util.MainMethodSearchEngine;
  34
  35 /**
  36  * A dialog to select a type from a list of types. The dialog allows
  37  * multiple selections.
  38  */
  39 public class MultiMainTypeSelectionDialog extends ElementListSelectionDialog {
  40
  41         private IRunnableContext fRunnableContext;
  42         private IJavaSearchScope fScope;
  43         private int fStyle;
  44
  45         /**
  46          * Constructor.
  47          */
  48         public MultiMainTypeSelectionDialog(Shell shell, IRunnableContext context,
  49                 IJavaSearchScope scope, int style)
  50         {
  51                 super(shell, new JavaElementLabelProvider(
  52                         JavaElementLabelProvider.SHOW_PARAMETERS | JavaElementLabelProvider.SHOW_POST_QUALIFIED | JavaElementLabelProvider.SHOW_ROOT));
  53
  54                 setMultipleSelection(true);
  55
  56                 Assert.isNotNull(context);
  57                 Assert.isNotNull(scope);
  58
  59                 fRunnableContext= context;
  60                 fScope= scope;
  61                 fStyle= style;
  62         }
  63
  64         /*
  65          * @see Window#open()
  66          */
  67         @Override
  68         public int open() {
  69                 MainMethodSearchEngine engine= new MainMethodSearchEngine();
  70                 IType[] types;
  71                 try {
  72                         types= engine.searchMainMethods(fRunnableContext, fScope, fStyle);
  73                 } catch (InterruptedException e) {
  74                         return CANCEL;
  75                 } catch (InvocationTargetException e) {
  76                         //XX: to do
  77                         ExceptionHandler.handle(e, JavaUIMessages.MultiMainTypeSelectionDialog_errorTitle, e.getMessage());
  78                         return CANCEL;
  79                 }
  80
  81                 setElements(types);
  82                 return super.open();
  83         }
  84
  85         /*
  86          * @see org.eclipse.jface.window.Window#configureShell(Shell)
  87          */
  88         @Override
  89         protected void configureShell(Shell newShell) {
  90                 super.configureShell(newShell);
  91                 PlatformUI.getWorkbench().getHelpSystem().setHelp(newShell, IJavaHelpContextIds.MULTI_MAIN_TYPE_SELECTION_DIALOG);
  92         }
  93
  94
  95 }