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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.range;
import org.eclipse.jst.pagedesigner.commands.CommandResources;
import org.eclipse.jst.pagedesigner.commands.nav.ICaretPositionMover;
import org.eclipse.jst.pagedesigner.dom.DOMRange;
import org.eclipse.jst.pagedesigner.viewer.IHTMLGraphicalViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
/**
* @author mengbo
*/
public class DeleteCommand extends RangeModeCommand implements
ICaretPositionMover {
private boolean _forward;
/**
* @param forward
* @param viewer
*/
public DeleteCommand(boolean forward, IHTMLGraphicalViewer viewer) {
super(CommandResources.getString("DeleteCommand.Label.Delete"), viewer); //$NON-NLS-1$
_forward = forward;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jst.pagedesigner.commands.DesignerCommand#doExecute()
*/
protected DOMRange doRangeExecute(DOMRange selection) {
if (selection == null) {
return null;
}
DesignEdit edit = new DeleteEdit(selection, getViewer(), _forward);
Listener listener = new Listener() {
public void handleEvent(Event event) {
event.type = SWT.NONE;
}
};
getViewer().getControl().getDisplay()
.addFilter(SWT.Selection, listener);
boolean status = edit.perform();
getViewer().getControl().getDisplay().removeFilter(SWT.Selection,
listener);
if (status) {
return new DOMRange(edit.getOperationPosition(), edit
.getOperationPosition());
}
return selection;
}
}
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