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/*******************************************************************************
* Copyright (c) 2006 Sybase, Inc. 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:
* Sybase, Inc. - initial API and implementation
*******************************************************************************/
package org.eclipse.jst.pagedesigner.commands;
import org.eclipse.gef.ui.parts.GraphicalEditor;
import org.eclipse.jst.pagedesigner.commands.range.DeleteCommand;
import org.eclipse.jst.pagedesigner.dom.EditModelQuery;
import org.eclipse.jst.pagedesigner.parts.DocumentEditPart;
import org.eclipse.jst.pagedesigner.viewer.IHTMLGraphicalViewer;
/**
* @author mengbo
*/
public class DeleteAction extends DesignAction {
/**
* @param editor
*/
public DeleteAction(GraphicalEditor editor) {
super(editor, CommandResources
.getString("DeleteAction.CommandLabel.Delete")); //$NON-NLS-1$
}
public void perform() {
DesignerCommand command = null;
IHTMLGraphicalViewer viewer = getViewer();
if (viewer.isInRangeMode()) {
command = new DeleteCommand(true, viewer);
command.execute();
} else {
command = new DeleteNodeCommand(viewer);
command.execute();
}
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.action.IAction#isEnabled()
*/
public boolean isEnabled() {
IHTMLGraphicalViewer viewer = getViewer();
if (viewer != null) {
if (viewer.isInRangeMode()
&& !EditModelQuery.isSame(viewer.getRangeSelection())) {
return true;
} else if (!viewer.isInRangeMode()) {
int size = viewer.getSelectedEditParts().size();
if (size > 1) {
return true;
} else if (size == 1
&& !(viewer.getSelectedEditParts().get(0) instanceof DocumentEditPart)) {
return true;
}
}
}
return false;
}
}
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