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/*****************************************************************************
* Copyright (c) 2014 CEA LIST and others.
*
*
* 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:
* Benoit Maggi (CEA LIST) benoit.maggi@cea.fr - Initial API and implementation
* Christian W. Damus (CEA) - bug 430701
*
*****************************************************************************/
package org.eclipse.papyrus.infra.gmfdiag.menu.handlers;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.core.expressions.IEvaluationContext;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.gef.commands.Command;
import org.eclipse.gmf.runtime.diagram.ui.editparts.DiagramEditPart;
import org.eclipse.gmf.runtime.diagram.ui.editparts.IGraphicalEditPart;
import org.eclipse.gmf.runtime.diagram.ui.parts.IDiagramWorkbenchPart;
import org.eclipse.gmf.runtime.diagram.ui.render.clipboard.AWTClipboardHelper;
import org.eclipse.gmf.runtime.notation.Diagram;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.papyrus.commands.INonDirtying;
import org.eclipse.papyrus.commands.util.NonDirtyingUtils;
import org.eclipse.papyrus.commands.wrappers.EMFtoGEFCommandWrapper;
import org.eclipse.papyrus.commands.wrappers.GMFtoGEFCommandWrapper;
import org.eclipse.papyrus.infra.core.clipboard.PapyrusClipboard;
import org.eclipse.papyrus.infra.gmfdiag.common.commands.DefaultDiagramCopyCommand;
import org.eclipse.papyrus.infra.gmfdiag.common.strategy.IStrategy;
import org.eclipse.papyrus.infra.gmfdiag.common.strategy.paste.IPasteStrategy;
import org.eclipse.papyrus.infra.gmfdiag.common.strategy.paste.PasteStrategyManager;
import org.eclipse.papyrus.infra.gmfdiag.common.utils.DiagramEditPartsUtil;
import org.eclipse.swt.custom.StyledText;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
/**
* Handler for the Copy Action in Diagram
*/
public class CopyInDiagramHandler extends AbstractGraphicalCommandHandler {
/**
*
* @see org.eclipse.papyrus.views.modelexplorer.handler.AbstractCommandHandler#getCommand()
*
* @return
*/
@Override
protected Command getCommand() {
PapyrusClipboard<Object> papyrusClipboard = PapyrusClipboard.getNewInstance();
List<IGraphicalEditPart> selectedElements = getSelectedElements();
TransactionalEditingDomain editingDomain = getEditingDomain();
// TODO : select copyStrategy
Command result;
DefaultDiagramCopyCommand defaultDiagramCopyCommand = new DefaultDiagramCopyCommand(editingDomain, papyrusClipboard, selectedElements);
result = EMFtoGEFCommandWrapper.wrap(defaultDiagramCopyCommand);
IDiagramWorkbenchPart activeDiagramWorkbenchPart = DiagramEditPartsUtil.getActiveDiagramWorkbenchPart();
Diagram diagram = activeDiagramWorkbenchPart.getDiagram();
DiagramEditPart diagramEditPart = activeDiagramWorkbenchPart.getDiagramEditPart();
List<Object> selectedElementModels = new ArrayList<Object>();
for(IGraphicalEditPart iGraphicalEditPart : selectedElements) {
selectedElementModels.add(iGraphicalEditPart.getModel());
}
MyCopyImageCommand copyImageCommand = new MyCopyImageCommand("Create image to allow paste on system", diagram, selectedElementModels, diagramEditPart); //$NON-NLS-1$
if(copyImageCommand.canExecute()) {
Command gmFtoGEFCommandWrapper = GMFtoGEFCommandWrapper.wrap(copyImageCommand);
result = NonDirtyingUtils.chain(result, gmFtoGEFCommandWrapper);
} else {
copyImageCommand.dispose();
}
List<IStrategy> allStrategies = PasteStrategyManager.getInstance().getAllStrategies();
for(IStrategy iStrategy : allStrategies) {
IPasteStrategy iIPasteStrategy = (IPasteStrategy)iStrategy;
iIPasteStrategy.prepare(papyrusClipboard);
}
return result;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.papyrus.infra.gmfdiag.menu.handlers.AbstractGraphicalCommandHandler#setEnabled(java.lang.Object)
*/
@Override
public void setEnabled(Object evaluationContext) {
if(evaluationContext instanceof IEvaluationContext) {
IEvaluationContext iEvaluationContext = (IEvaluationContext)evaluationContext;
Object activeFocusControl = iEvaluationContext.getVariable("activeFocusControl"); //$NON-NLS-1$
Object activeShell = iEvaluationContext.getVariable("activeShell"); //$NON-NLS-1$
Control focusControl = null;
if(activeShell instanceof Shell) {
Shell shell = (Shell)activeShell;
Display display = shell.getDisplay();
if(display != null) {
focusControl = display.getFocusControl();
}
}
if(activeFocusControl instanceof StyledText || focusControl instanceof Text) { // true if the focus is on an internal xtext editor or a text edit
setBaseEnabled(false);
} else {
super.setEnabled(evaluationContext);
}
}
}
//
// Nested classes
//
@SuppressWarnings("restriction")
private static class MyCopyImageCommand extends org.eclipse.gmf.runtime.diagram.ui.render.internal.commands.CopyImageCommand implements INonDirtying {
MyCopyImageCommand(String label, View viewContext, @SuppressWarnings("rawtypes") List source, DiagramEditPart diagramEP) {
super(label, viewContext, source, diagramEP);
}
@Override
public boolean canExecute() {
return AWTClipboardHelper.getInstance().isImageCopySupported();
}
}
}
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