/*******************************************************************************
* Copyright (c) 2007, 2011 Tasktop Technologies 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:
* David Green - initial API and implementation
*******************************************************************************/
package org.eclipse.mylyn.commons.workbench.texteditor;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.commands.IHandler;
import org.eclipse.jface.text.BadLocationException;
import org.eclipse.jface.text.ITextSelection;
import org.eclipse.jface.text.ITextViewer;
import org.eclipse.ui.texteditor.TextViewerDeleteLineTarget;
/**
* Abstract command handler that uses {@link TextViewerDeleteLineTarget}. Subclasses can specify the type of delete line
* and copyToClipboard.
*
* @author David Green
* @since 3.7
*/
public class AbstractDeleteLineHandler extends AbstractTextViewerHandler implements IHandler {
protected final int type;
protected final boolean copyToClipboard;
protected AbstractDeleteLineHandler(int type, boolean copyToClipboard) {
this.type = type;
this.copyToClipboard = copyToClipboard;
}
public Object execute(ExecutionEvent event) throws ExecutionException {
ITextViewer viewer = getTextViewer(event);
if (viewer != null) {
TextViewerDeleteLineTarget target = new TextViewerDeleteLineTarget(viewer);
try {
ITextSelection textSelection = (ITextSelection) viewer.getSelectionProvider().getSelection();
target.deleteLine(viewer.getDocument(), textSelection, type, copyToClipboard);
} catch (BadLocationException e) {
throw new ExecutionException(e.getMessage(), e);
}
}
return null;
}
}