case-study/jdt-after/ui/org/eclipse/jdt/internal/ui/packageview/GotoTypeAction.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.packageview;
  12
  13 import org.eclipse.swt.widgets.Shell;
  14
  15 import org.eclipse.jface.action.Action;
  16 import org.eclipse.jface.dialogs.IDialogConstants;
  17 import org.eclipse.jface.dialogs.ProgressMonitorDialog;
  18 import org.eclipse.jface.viewers.IStructuredSelection;
  19
  20 import org.eclipse.ui.PlatformUI;
  21 import org.eclipse.ui.dialogs.SelectionDialog;
  22
  23 import org.eclipse.jdt.core.ICompilationUnit;
  24 import org.eclipse.jdt.core.IJavaElement;
  25 import org.eclipse.jdt.core.IType;
  26 import org.eclipse.jdt.core.JavaModelException;
  27 import org.eclipse.jdt.core.search.SearchEngine;
  28
  29 import org.eclipse.jdt.ui.IJavaElementSearchConstants;
  30 import org.eclipse.jdt.ui.JavaUI;
  31
  32 import org.eclipse.jdt.internal.ui.IJavaHelpContextIds;
  33 import org.eclipse.jdt.internal.ui.JavaPlugin;
  34 import org.eclipse.jdt.internal.ui.util.ExceptionHandler;
  35
  36 class GotoTypeAction extends Action {
  37
  38         PackageExplorerPart fPackageExplorer;
  39
  40         GotoTypeAction(PackageExplorerPart part) {
  41                 super();
  42                 setText(PackagesMessages.GotoType_action_label);
  43                 setDescription(PackagesMessages.GotoType_action_description);
  44                 fPackageExplorer= part;
  45                 PlatformUI.getWorkbench().getHelpSystem().setHelp(this, IJavaHelpContextIds.GOTO_TYPE_ACTION);
  46         }
  47
  48         @Override
  49         public void run() {
  50                 Shell shell= JavaPlugin.getActiveWorkbenchShell();
  51                 SelectionDialog dialog= null;
  52                 try {
  53                         dialog= JavaUI.createTypeDialog(shell, new ProgressMonitorDialog(shell),
  54                                 SearchEngine.createWorkspaceScope(), IJavaElementSearchConstants.CONSIDER_ALL_TYPES, false);
  55                 } catch (JavaModelException e) {
  56                         String title= getDialogTitle();
  57                         String message= PackagesMessages.GotoType_error_message;
  58                         ExceptionHandler.handle(e, title, message);
  59                         return;
  60                 }
  61
  62                 dialog.setTitle(getDialogTitle());
  63                 dialog.setMessage(PackagesMessages.GotoType_dialog_message);
  64                 if (dialog.open() == IDialogConstants.CANCEL_ID) {
  65                         return;
  66                 }
  67
  68                 Object[] types= dialog.getResult();
  69                 if (types != null && types.length > 0) {
  70                         gotoType((IType) types[0]);
  71                 }
  72         }
  73
  74         private void gotoType(IType type) {
  75                 ICompilationUnit cu= (ICompilationUnit) type.getAncestor(IJavaElement.COMPILATION_UNIT);
  76                 IJavaElement element= null;
  77                 if (cu != null) {
  78                         element= cu.getPrimary();
  79                 }
  80                 else {
  81                         element= type.getAncestor(IJavaElement.CLASS_FILE);
  82                 }
  83                 if (element != null) {
  84                         PackageExplorerPart view= PackageExplorerPart.openInActivePerspective();
  85                         if (view != null) {
  86                                 view.generated_4824484528801798530(element, this);
  87                         }
  88                 }
  89         }
  90
  91         Object getSelectedElement(PackageExplorerPart view) {
  92                 return ((IStructuredSelection)view.getSite().getSelectionProvider().getSelection()).getFirstElement();
  93         }
  94
  95         String getDialogTitle() {
  96                 return PackagesMessages.GotoType_dialog_title;
  97         }
  98 }