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/*******************************************************************************
* Copyright (c) 2004, 2008 Tasktop Technologies 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:
* Tasktop Technologies - initial API and implementation
*******************************************************************************/
package org.eclipse.mylyn.internal.tasks.ui.commands;
import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.mylyn.internal.tasks.core.AbstractTask;
import org.eclipse.mylyn.tasks.core.ITask;
import org.eclipse.mylyn.tasks.core.ITaskContainer;
import org.eclipse.ui.handlers.HandlerUtil;
/**
* @author Steffen Pingel
*/
public abstract class AbstractTaskHandler extends AbstractHandler {
protected boolean recurse;
public AbstractTaskHandler() {
}
public Object execute(ExecutionEvent event) throws ExecutionException {
ISelection selection = HandlerUtil.getCurrentSelection(event);
if (selection instanceof IStructuredSelection) {
Object[] items = ((IStructuredSelection) selection).toArray();
for (Object item : items) {
process(event, item, recurse);
}
}
return null;
}
private void process(ExecutionEvent event, Object item, boolean recurse) throws ExecutionException {
if (item instanceof ITask) {
execute(event, (ITask) item);
}
if (item instanceof ITaskContainer && (recurse || !(item instanceof AbstractTask))) {
execute(event, (ITaskContainer) item);
}
}
protected void execute(ExecutionEvent event, ITaskContainer item) throws ExecutionException {
for (ITask task : item.getChildren()) {
process(event, task, true);
}
}
protected void execute(ExecutionEvent event, ITask task) throws ExecutionException {
}
}
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