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/*****************************************************************************
* Copyright (c) 2011 CEA LIST.
*
*
* 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
*
* Contributors:
* Vincent Lorenzo (CEA LIST) Vincent.Lorenzo@cea.fr - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.infra.emf.compare.ui.content.transactional.viewer;
import org.eclipse.compare.CompareConfiguration;
import org.eclipse.core.runtime.Assert;
import org.eclipse.emf.compare.diff.metamodel.DiffElement;
import org.eclipse.emf.compare.diff.metamodel.DiffModel;
import org.eclipse.emf.compare.ui.internal.ModelComparator;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.workspace.ui.actions.RedoActionWrapper;
import org.eclipse.emf.workspace.ui.actions.UndoActionWrapper;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.action.ActionContributionItem;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.action.IContributionItem;
import org.eclipse.jface.action.Separator;
import org.eclipse.jface.action.ToolBarManager;
import org.eclipse.papyrus.infra.emf.compare.diff.merge.ITransactionalMerger;
import org.eclipse.papyrus.infra.emf.compare.diff.service.TransactionalMergeFactory;
import org.eclipse.papyrus.infra.emf.compare.ui.content.viewer.PapyrusCustomizableModelContentMergeViewer;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.ISharedImages;
import org.eclipse.ui.PlatformUI;
/**
*
* This viewer adds the Undo/Redo after a merge action
*
*
*/
public class PapyrusTransactionalModelContentMergeViewer extends PapyrusCustomizableModelContentMergeViewer {
private IAction _copyDiffLeftToRight;
private IAction _copyDiffRightToLeft;
private IAction _copyAllLeftToRight;
private IAction _copyAllRightToLeft;
private static final String COPY_ALL_RIGHT_TO_LEFT = "org.eclipse.compare.copyAllRightToLeft";
private static final String COPY_ALL_LEFT_TO_RIGHT = "org.eclipse.compare.copyAllLeftToRight";
private static final String COPY_CURRENT_SELECTION_LEFT_TO_RIGHT = "Copy Current Change to Right";
private static final String COPY_CURRENT_SELECTION_RIGHT_TO_LEFT = "Copy Current Change to Left";
/**
*
* Constructor.
*
* @param parent
* @param config
*/
public PapyrusTransactionalModelContentMergeViewer(final Composite parent, final CompareConfiguration config, final IEditorPart editor) {
super(parent, config, editor);
}
/**
*
* {@inheritDoc} Add a toogle button to the toolbar to do the synchronization with the diagram
*
* @param tbm
* the toolbar manager
*/
@Override
protected void createToolItems(final ToolBarManager tbm) {
super.createToolItems(tbm);
final Action undoAction = getUndoAction();
final Action redoAction = getRedoAction();
tbm.insert(0, new ActionContributionItem(undoAction));
tbm.insert(1, new ActionContributionItem(redoAction));
tbm.insert(2, new Separator("undo_redo_group")); //$NON-NLS-1$
initializeIActionField(tbm);
}
protected Action getUndoAction() {
final UndoActionWrapper undoAction = new UndoActionWrapper();
//we need that the editor will be created to get it and initialize the actions
Display.getCurrent().asyncExec(new Runnable() {
public void run() {
IEditorPart editorPart = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().getActiveEditor();
undoAction.setActiveWorkbenchPart(editorPart);
}
});
ISharedImages sharedImages = PlatformUI.getWorkbench().getSharedImages();
undoAction.setImageDescriptor(sharedImages.getImageDescriptor(ISharedImages.IMG_TOOL_UNDO));
return undoAction;
}
protected Action getRedoAction() {
final RedoActionWrapper redoAction = new RedoActionWrapper();
//we need that the editor will be created to get it and initialize the actions
Display.getCurrent().asyncExec(new Runnable() {
public void run() {
IEditorPart editorPart = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().getActiveEditor();
redoAction.setActiveWorkbenchPart(editorPart);
}
});
ISharedImages sharedImages = PlatformUI.getWorkbench().getSharedImages();
redoAction.setImageDescriptor(sharedImages.getImageDescriptor(ISharedImages.IMG_TOOL_REDO));
return redoAction;
}
private void initializeIActionField(final ToolBarManager tbm) {
for(IContributionItem item : tbm.getItems()) {
if(item instanceof ActionContributionItem) {
IAction action = ((ActionContributionItem)item).getAction();
final String id = action.getActionDefinitionId();
final String txt = action.getText();
if(COPY_ALL_LEFT_TO_RIGHT.equals(id)) {
_copyAllLeftToRight = action;
continue;
} else if(COPY_ALL_RIGHT_TO_LEFT.equals(id)) {
_copyAllRightToLeft = action;
continue;
}
//TODO post a bug to EMF-Compare in order to have an id for these actions
if(COPY_CURRENT_SELECTION_LEFT_TO_RIGHT.equals(txt)) {
_copyDiffLeftToRight = action;
continue;
} else if(COPY_CURRENT_SELECTION_RIGHT_TO_LEFT.equals(txt)) {
_copyDiffRightToLeft = action;
continue;
}
}
if(_copyAllLeftToRight != null && _copyAllRightToLeft != null && _copyDiffLeftToRight != null && _copyDiffRightToLeft != null) {
break;
}
}
}
@Override
protected void switchCopyState(boolean enabled) {
final ModelComparator comparator = ModelComparator.getComparator(configuration);
boolean leftEditable = configuration.isLeftEditable();
if(comparator != null)
leftEditable = leftEditable && !comparator.isLeftRemote();
boolean rightEditable = configuration.isRightEditable();
if(comparator != null)
rightEditable = rightEditable && !comparator.isRightRemote();
boolean canCopyLeftToRight = false;
boolean canCopyRightToLeft = false;
boolean canAllCopyLeftToRight = true;
boolean canAllCopyRightToLeft = true;
if(currentSelection.size() == 1) {
final ITransactionalMerger merger = TransactionalMergeFactory.createMerger(currentSelection.get(0));
canCopyLeftToRight = merger.canUndoInTarget();
canCopyRightToLeft = merger.canApplyInOrigin();
}
if(currentSelection.size() > 0) {
EObject diffModel = currentSelection.get(0);
while(!(diffModel instanceof DiffModel)) {
diffModel = diffModel.eContainer();
}
Assert.isNotNull(diffModel);
for(DiffElement current : ((DiffModel)diffModel).getDifferences()) {
final ITransactionalMerger merger = TransactionalMergeFactory.createMerger(current);
canAllCopyLeftToRight = canAllCopyLeftToRight && merger.canUndoInTarget();
canAllCopyRightToLeft = canAllCopyRightToLeft && merger.canApplyInOrigin();
}
}
if(_copyAllLeftToRight != null) {
_copyAllLeftToRight.setEnabled(rightEditable && enabled && canAllCopyLeftToRight);
}
if(_copyAllRightToLeft != null) {
_copyAllRightToLeft.setEnabled(leftEditable && enabled && canAllCopyRightToLeft);
}
if(_copyDiffLeftToRight != null) {
_copyDiffLeftToRight.setEnabled(rightEditable && enabled && canCopyLeftToRight);
}
if(_copyDiffRightToLeft != null) {
_copyDiffRightToLeft.setEnabled(leftEditable && enabled && canCopyRightToLeft);
}
}
}
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