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/*******************************************************************************
* Copyright (c) 2004 - 2005 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.tasklist.ui.actions;
import java.util.List;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.action.ActionContributionItem;
import org.eclipse.mylar.tasklist.ITask;
import org.eclipse.mylar.tasklist.TaskListImages;
import org.eclipse.mylar.tasklist.ui.views.TaskActivationHistory;
import org.eclipse.mylar.tasklist.ui.views.TaskListView;
/**
* @author Wesley Coelho
*/
public class PreviousTaskDropDownAction extends DropDownTaskNavigateAction {
public static final String ID = "org.eclipse.mylar.tasklist.actions.navigate.previous";
public PreviousTaskDropDownAction(TaskListView view, TaskActivationHistory history){
super(view, history);
setText("Previous Task");
setToolTipText("Previous Task");
setId(ID);
setEnabled(true);
setImageDescriptor(TaskListImages.NAVIGATE_PREVIOUS);
}
protected void addActionsToMenu(){
List<ITask> tasks = taskHistory.getPreviousTasks();
if(tasks.size() > MAX_ITEMS){
tasks = tasks.subList(tasks.size() - MAX_ITEMS, tasks.size());
}
for(int i = tasks.size() - 1; i >= 0; i--){
ITask currTask = tasks.get(i);
Action taskNavAction = new TaskNavigateAction(currTask);
ActionContributionItem item= new ActionContributionItem(taskNavAction);
item.fill(dropDownMenu, -1);
}
}
public void run() {
if (taskHistory.hasPrevious()) {
new TaskActivateAction(taskHistory.getPreviousTask()).run();
setButtonStatus();
view.getViewer().refresh();
}
}
}
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