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/*******************************************************************************
* Copyright (c) 2004 - 2006 University Of British Columbia 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:
* University Of British Columbia - initial API and implementation
*******************************************************************************/
package org.eclipse.mylar.internal.tasklist;
import java.util.Calendar;
import org.eclipse.mylar.core.IInteractionEventListener;
import org.eclipse.mylar.core.InteractionEvent;
import org.eclipse.mylar.core.MylarPlugin;
import org.eclipse.mylar.core.util.ITimerThreadListener;
import org.eclipse.mylar.core.util.TimerThread;
import org.eclipse.mylar.tasklist.ITask;
import org.eclipse.swt.events.ShellEvent;
import org.eclipse.swt.events.ShellListener;
import org.eclipse.ui.PlatformUI;
/**
* @author Mik Kersten
*/
public class TaskActivityTimer implements ITimerThreadListener, IInteractionEventListener, ShellListener {
private TimerThread timer;
private ITask task;
private long lastActivity;
private boolean started;
public TaskActivityTimer(ITask task, int timeout, int sleepInterval) {
this.task = task;
timer = new TimerThread(timeout, sleepInterval);
PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell().addShellListener(this);
MylarPlugin.getDefault().addInteractionListener(this);
timer.addListener(this);
}
public void startTimer() {
lastActivity = Calendar.getInstance().getTimeInMillis();
timer.start();
started = true;
}
public void stopTimer() {
if (!timer.isSuspended()) {
addElapsedToActivityTime();
}
timer.kill();
timer.removeListener(this);
MylarPlugin.getDefault().removeInteractionListener(this);
PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell().removeShellListener(this);
started = false;
}
public void fireTimedOut() {
suspendTiming();
}
public void shellDeactivated(ShellEvent e) {
suspendTiming();
}
public void interactionObserved(InteractionEvent event) {
// lastActivity = Calendar.getInstance().getTimeInMillis();
timer.resetTimer();
}
public void shellActivated(ShellEvent e) {
timer.resetTimer();
lastActivity = Calendar.getInstance().getTimeInMillis();
}
private void suspendTiming() {
addElapsedToActivityTime();
timer.setSuspended(true);
}
private void addElapsedToActivityTime() {
long elapsed = Calendar.getInstance().getTimeInMillis() - lastActivity;
task.setElapsedTime(task.getElapsedTime() + elapsed);
lastActivity = Calendar.getInstance().getTimeInMillis();
}
public void shellClosed(ShellEvent e) {
timer.kill();
}
public void shellDeiconified(ShellEvent e) {
// ignore
}
public void shellIconified(ShellEvent e) {
// ignore
}
public void startObserving() {
}
public void stopObserving() {
}
/**
* Public for testing
*/
public boolean isStarted() {
return started;
}
public String toString() {
return "timer for task: " + task.toString();
}
public boolean isSuspended() {
return timer.isSuspended();
}
public void intervalElapsed() {
addElapsedToActivityTime();
}
}
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