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/*****************************************************************************
* Copyright (c) 2014, 2021 CEA LIST.
*
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Benoit Maggi (CEA LIST) benoit.maggi@cea.fr - Initial API and implementation
* Ansgar Radermacher (CEA LIST) ansgar.radermacher@cea.fr - bug 573807
*****************************************************************************/
package org.eclipse.papyrus.infra.gmfdiag.menu.handlers;
import java.util.List;
import org.eclipse.core.expressions.IEvaluationContext;
import org.eclipse.gef.commands.Command;
import org.eclipse.gef.commands.UnexecutableCommand;
import org.eclipse.gmf.runtime.diagram.ui.editparts.GraphicalEditPart;
import org.eclipse.gmf.runtime.diagram.ui.editparts.IGraphicalEditPart;
import org.eclipse.papyrus.infra.core.clipboard.PapyrusClipboard;
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.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;
/**
* The handler for the paste with model in Diagram
*
*/
public class PasteInDiagramHandler extends AbstractGraphicalCommandHandler {
/**
*
* @see org.eclipse.papyrus.views.modelexplorer.handler.AbstractCommandHandler#getCommand()
*
* @return
*/
@Override
protected Command getCommand() {
PapyrusClipboard.getInstance().resetTarget();
List<IGraphicalEditPart> selectedElements = getSelectedElements();
if (selectedElements.size() == 1 && (selectedElements.get(0) instanceof GraphicalEditPart)) { // Paste is only enabled on a simple selection
GraphicalEditPart targetOwnerEditPart = (GraphicalEditPart) selectedElements.get(0);
org.eclipse.gef.commands.CompoundCommand compoundCommand = new org.eclipse.gef.commands.CompoundCommand("Paste all elements"); //$NON-NLS-1$
List<IStrategy> allStrategies = PasteStrategyManager.getInstance().getAllActiveStrategies();
for (IStrategy iStrategy : allStrategies) {
IPasteStrategy iPasteStrategy = (IPasteStrategy) iStrategy;
Command graphicalCommand = iPasteStrategy.getGraphicalCommand(getEditingDomain(), targetOwnerEditPart, PapyrusClipboard.getInstance());
if (graphicalCommand != null) {
compoundCommand.add(graphicalCommand);
}
}
return compoundCommand;
}
return UnexecutableCommand.INSTANCE;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.papyrus.infra.gmfdiag.menu.handlers.AbstractGraphicalCommandHandler#setEnabled(java.lang.Object)
*/
@Override
public void setEnabled(Object evaluationContext) {
if (!PapyrusClipboard.getInstance().isEmpty()) {
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.isDisposed() ? shell.getDisplay() : null;
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);
}
}
} else {
setBaseEnabled(false);
}
}
}
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