1 files changed, 0 insertions, 127 deletions
diff --git a/org.eclipse.mylyn.tasks.core/src/org/eclipse/mylyn/internal/tasks/core/TaskActivationHistory.java b/org.eclipse.mylyn.tasks.core/src/org/eclipse/mylyn/internal/tasks/core/TaskActivationHistory.java
deleted file mode 100644
index 8828f7dbc..000000000
--- a/org.eclipse.mylyn.tasks.core/src/org/eclipse/mylyn/internal/tasks/core/TaskActivationHistory.java
+++ /dev/null
@@ -1,127 +0,0 @@
-/*******************************************************************************
- * 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
- *     Ken Sueda - original prototype
- *******************************************************************************/
-
-package org.eclipse.mylyn.internal.tasks.core;
-
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.HashSet;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Set;
-
-import org.eclipse.mylyn.tasks.core.ITask;
-import org.eclipse.mylyn.tasks.core.ITaskContainer;
-
-/**
- * Maintains a list of tasks that have been activated in the past. Each task only occurs once in the list. The list is
- * sorted by most recent activation, i.e. the task with the highest index is the task that was most recently activated.
- * 
- * @author Wesley Coelho (Added persistent tasks)
- * @author Mik Kersten (hardening)
- * @author Rob Elves
- * @author Steffen Pingel
- */
-public class TaskActivationHistory {
-
-	/**
-	 * The most recently activated task has the highest index in the list.
-	 */
-	private final List<AbstractTask> history = new ArrayList<AbstractTask>();
-
-	/**
-	 * Index pointing to the task that was previously active.
-	 */
-	private int previousIndex = -1;
-
-	public void addTask(AbstractTask task) {
-		boolean isPreviousTask = false;
-		// optimization: do not modify list, if task is already last
-		if (history.isEmpty() || history.get(history.size() - 1) != task) {
-			if (previousIndex >= 0 && previousIndex < history.size() && history.get(previousIndex) == task) {
-				isPreviousTask = true;
-			}
-			history.remove(task);
-			history.add(task);
-		}
-		if (isPreviousTask) {
-			// the previous task was activated, move the cursor
-			previousIndex--;
-		} else {
-			previousIndex = history.size() - 2;
-		}
-	}
-
-	public boolean containsTask(ITask task) {
-		return history.contains(task);
-	}
-
-	public boolean removeTask(ITask task) {
-		return history.remove(task);
-	}
-
-	public AbstractTask getPreviousTask() {
-		if (history.isEmpty()) {
-			return null;
-		}
-		AbstractTask currentTask = history.get(history.size() - 1);
-		if (currentTask.isActive() && previousIndex >= 0 && previousIndex < history.size()) {
-			return history.get(previousIndex);
-		} else {
-			return currentTask;
-		}
-	}
-
-	public List<AbstractTask> getPreviousTasks() {
-		return Collections.unmodifiableList(new ArrayList<AbstractTask>(history));
-	}
-
-	/**
-	 * Returns task activation history for tasks present in <code>containers</code>
-	 */
-	public List<AbstractTask> getPreviousTasks(Set<AbstractTaskContainer> containers) {
-		if (containers.isEmpty()) {
-			return getPreviousTasks();
-		}
-		Set<ITask> allWorkingSetTasks = new HashSet<ITask>();
-		for (ITaskContainer container : containers) {
-			allWorkingSetTasks.addAll(container.getChildren());
-		}
-		List<AbstractTask> allScopedTasks = new ArrayList<AbstractTask>(getPreviousTasks());
-		for (Iterator<AbstractTask> it = allScopedTasks.iterator(); it.hasNext();) {
-			AbstractTask task = it.next();
-			if (!allWorkingSetTasks.contains(task)) {
-				it.remove();
-			}
-		}
-		return Collections.unmodifiableList(allScopedTasks);
-	}
-
-	public boolean hasPrevious() {
-		return getPreviousTask() != null;
-	}
-
-	public void clear() {
-		history.clear();
-		previousIndex = -1;
-	}
-
-	public int indexOf(ITask task) {
-		return history.indexOf(task);
-
-	}
-
-	public int getSize() {
-		return history.size();
-	}
-
-}