org.eclipse.mylyn.sandbox.ui/src/org/eclipse/mylyn/internal/sandbox/views/TaskActivityViewContentProvider.java

/*******************************************************************************
 * Copyright (c) 2004, 2007 Mylyn project committers 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
 *******************************************************************************/

package org.eclipse.mylyn.internal.sandbox.views;

import org.eclipse.jface.viewers.IStructuredContentProvider;
import org.eclipse.jface.viewers.ITreeContentProvider;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.mylyn.internal.tasks.core.ScheduledTaskContainer;
import org.eclipse.mylyn.tasks.ui.TaskListManager;

/**
 * @author Rob Elves
 * @author Mik Kersten
 */
public class TaskActivityViewContentProvider implements IStructuredContentProvider, ITreeContentProvider {

	private TaskListManager taskListManager;

	public TaskActivityViewContentProvider(TaskListManager taskActivityManager) {
		this.taskListManager = taskActivityManager;
	}

	public Object[] getElements(Object parent) {
		return taskListManager.getDateRanges().toArray();
	}

	public Object getParent(Object child) {
//		if (child instanceof DateRangeActivityDelegate) {
//			DateRangeActivityDelegate dateRangeTaskWrapper = (DateRangeActivityDelegate) child;
//			return dateRangeTaskWrapper.getParent();
//		} else {
		return null;
//		}
	}

	public Object[] getChildren(Object parent) {
		if (parent instanceof ScheduledTaskContainer) {
			ScheduledTaskContainer taskContainer = (ScheduledTaskContainer) parent;
			return taskContainer.getDateRangeDelegates().toArray();
		} else {
			return new Object[0];
		}
	}

	public boolean hasChildren(Object parent) {
		if (parent instanceof ScheduledTaskContainer) {
			ScheduledTaskContainer dateRangeTaskCategory = (ScheduledTaskContainer) parent;
			return dateRangeTaskCategory.getDateRangeDelegates() != null
					&& dateRangeTaskCategory.getDateRangeDelegates().size() > 0;
		} else {
			return false;
		}
	}

	public void dispose() {
	}

	public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
	}
}