case-study/jdt-before/ui/org/eclipse/jdt/internal/ui/compare/JavaCompareWithEditionActionImpl.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.compare;
  12
  13 import org.eclipse.team.ui.TeamUI;
  14 import org.eclipse.team.ui.history.HistoryPageCompareEditorInput;
  15
  16 import org.eclipse.core.resources.IFile;
  17
  18 import org.eclipse.jface.dialogs.MessageDialog;
  19 import org.eclipse.jface.viewers.ISelection;
  20
  21 import org.eclipse.ui.PlatformUI;
  22
  23 import org.eclipse.compare.CompareConfiguration;
  24 import org.eclipse.compare.CompareUI;
  25
  26 import org.eclipse.jdt.core.IMember;
  27
  28 import org.eclipse.jdt.internal.ui.IJavaHelpContextIds;
  29
  30
  31 /**
  32  * Provides "Replace from local history" for Java elements.
  33  */
  34 class JavaCompareWithEditionActionImpl extends JavaHistoryActionImpl {
  35
  36         private static boolean USE_MODAL_COMPARE = false;
  37
  38         JavaCompareWithEditionActionImpl() {
  39                 super(false);
  40         }
  41
  42         @Override
  43         public void run(ISelection selection) {
  44
  45                 IMember input= getEditionElement(selection);
  46                 if (input == null) {
  47                         MessageDialog.openInformation(getShell(), CompareMessages.CompareWithHistory_title, CompareMessages.CompareWithHistory_invalidSelectionMessage);
  48                         return;
  49                 }
  50
  51                 JavaElementHistoryPageSource pageSource = JavaElementHistoryPageSource.getInstance();
  52                 final IFile file= pageSource.getFile(input);
  53                 if (file == null) {
  54                         MessageDialog.openError(getShell(), CompareMessages.CompareWithHistory_title, CompareMessages.CompareWithHistory_internalErrorMessage);
  55                         return;
  56                 }
  57
  58                 if (USE_MODAL_COMPARE) {
  59                         CompareConfiguration cc = new CompareConfiguration();
  60                         cc.setLeftEditable(false);
  61                         cc.setRightEditable(false);
  62                         HistoryPageCompareEditorInput ci = new HistoryPageCompareEditorInput(cc, pageSource, input);
  63                         ci.setTitle(CompareMessages.JavaCompareWithEditionActionImpl_0);
  64                         ci.setHelpContextId(IJavaHelpContextIds.COMPARE_ELEMENT_WITH_HISTORY_DIALOG);
  65                         CompareUI.openCompareDialog(ci);
  66                 } else {
  67                         TeamUI.showHistoryFor(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage(), input, pageSource);
  68                 }
  69         }
  70 }
  71