### Eclipse Workspace Patch 1.0
#P org.eclipse.mylyn.tasks.ui
Index: src/org/eclipse/mylyn/internal/tasks/ui/actions/ActivateTaskDialogAction.java
===================================================================
RCS file: /cvsroot/tools/org.eclipse.mylyn/org.eclipse.mylyn.tasks.ui/src/org/eclipse/mylyn/internal/tasks/ui/actions/ActivateTaskDialogAction.java,v
retrieving revision 1.18
diff -u -r1.18 ActivateTaskDialogAction.java
--- src/org/eclipse/mylyn/internal/tasks/ui/actions/ActivateTaskDialogAction.java	7 Dec 2008 02:43:31 -0000	1.18
+++ src/org/eclipse/mylyn/internal/tasks/ui/actions/ActivateTaskDialogAction.java	26 May 2009 15:22:39 -0000
@@ -36,7 +36,7 @@
 
 	@Override
 	public void run(IAction action) {
-		TaskSelectionDialog dlg = new TaskSelectionDialog(window.getShell());
+		TaskSelectionDialogWithRandomOption dlg = new TaskSelectionDialogWithRandomOption(window.getShell());
 		dlg.setTitle(Messages.ActivateTaskDialogAction_Activate_Task);
 		dlg.setMessage(Messages.ActivateTaskDialogAction_Select_a_task_to_activate__);
 
Index: src/org/eclipse/mylyn/internal/tasks/ui/actions/Messages.java
===================================================================
RCS file: /cvsroot/tools/org.eclipse.mylyn/org.eclipse.mylyn.tasks.ui/src/org/eclipse/mylyn/internal/tasks/ui/actions/Messages.java,v
retrieving revision 1.11
diff -u -r1.11 Messages.java
--- src/org/eclipse/mylyn/internal/tasks/ui/actions/Messages.java	11 May 2009 18:12:52 -0000	1.11
+++ src/org/eclipse/mylyn/internal/tasks/ui/actions/Messages.java	26 May 2009 15:22:39 -0000
@@ -231,6 +231,8 @@
 
 	public static String TaskSelectionDialog_Open_with_Browser;
 
+	public static String TaskSelectionDialog_Random_Task;
+
 	public static String TaskSelectionDialog_Scanning_tasks;
 
 	public static String TaskSelectionDialog_Search_for_tasks;
Index: src/org/eclipse/mylyn/internal/tasks/ui/actions/TaskSelectionDialog.java
===================================================================
RCS file: /cvsroot/tools/org.eclipse.mylyn/org.eclipse.mylyn.tasks.ui/src/org/eclipse/mylyn/internal/tasks/ui/actions/TaskSelectionDialog.java,v
retrieving revision 1.50
diff -u -r1.50 TaskSelectionDialog.java
--- src/org/eclipse/mylyn/internal/tasks/ui/actions/TaskSelectionDialog.java	7 Dec 2008 02:43:32 -0000	1.50
+++ src/org/eclipse/mylyn/internal/tasks/ui/actions/TaskSelectionDialog.java	26 May 2009 15:22:40 -0000
@@ -505,14 +505,26 @@
 			});
 		}
 
+		createAdditionalButtons(composite);
+
 		Label filler = new Label(composite, SWT.NONE);
 		filler.setLayoutData(new GridData(GridData.FILL_HORIZONTAL | GridData.GRAB_HORIZONTAL));
 		layout.numColumns++;
-		super.createButtonsForButtonBar(composite); // cancel button
+		super.createButtonsForButtonBar(composite); // cancel button		
 
 		return composite;
 	}
 
+	/**
+	 * Allows to add new buttons at the bottom of this dialog next to New Task button
+	 * 
+	 * @param parent
+	 *            the parent composite to contain the button bar
+	 */
+	protected void createAdditionalButtons(Composite parent) {
+		// we don't want to add any new button
+	}
+
 	@Override
 	protected Control createExtendedContentArea(Composite parent) {
 		if (!showExtendedOpeningOptions) {
@@ -722,7 +734,8 @@
 		if (item instanceof ITask) {
 			return Status.OK_STATUS;
 		}
-		return new Status(IStatus.ERROR, TasksUiPlugin.ID_PLUGIN, Messages.TaskSelectionDialog_Selected_item_is_not_a_task);
+		return new Status(IStatus.ERROR, TasksUiPlugin.ID_PLUGIN,
+				Messages.TaskSelectionDialog_Selected_item_is_not_a_task);
 	}
 
 }
Index: src/org/eclipse/mylyn/internal/tasks/ui/actions/messages.properties
===================================================================
RCS file: /cvsroot/tools/org.eclipse.mylyn/org.eclipse.mylyn.tasks.ui/src/org/eclipse/mylyn/internal/tasks/ui/actions/messages.properties,v
retrieving revision 1.12
diff -u -r1.12 messages.properties
--- src/org/eclipse/mylyn/internal/tasks/ui/actions/messages.properties	11 May 2009 18:12:52 -0000	1.12
+++ src/org/eclipse/mylyn/internal/tasks/ui/actions/messages.properties	26 May 2009 15:22:40 -0000
@@ -139,6 +139,7 @@
 TaskSelectionDialog_Edit_Active_Working_Set_=&Edit Active Working Set...
 TaskSelectionDialog_New_Task_=&New Task...
 TaskSelectionDialog_Open_with_Browser=Open with &Browser
+TaskSelectionDialog_Random_Task=&Random Task
 TaskSelectionDialog_Scanning_tasks=Scanning tasks
 TaskSelectionDialog_Search_for_tasks=Search for tasks
 TaskSelectionDialog_Select_Working_Set_=Select &Working Set...
Index: src/org/eclipse/mylyn/internal/tasks/ui/actions/TaskSelectionDialogWithRandomOption.java
===================================================================
RCS file: src/org/eclipse/mylyn/internal/tasks/ui/actions/TaskSelectionDialogWithRandomOption.java
diff -N src/org/eclipse/mylyn/internal/tasks/ui/actions/TaskSelectionDialogWithRandomOption.java
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ src/org/eclipse/mylyn/internal/tasks/ui/actions/TaskSelectionDialogWithRandomOption.java	1 Jan 1970 00:00:00 -0000
@@ -0,0 +1,90 @@
+/*******************************************************************************
+ * 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.actions;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+import java.util.Random;
+
+import org.eclipse.jface.dialogs.IDialogConstants;
+import org.eclipse.mylyn.internal.tasks.core.AbstractTask;
+import org.eclipse.mylyn.internal.tasks.core.DateRange;
+import org.eclipse.mylyn.internal.tasks.core.TaskList;
+import org.eclipse.mylyn.internal.tasks.ui.TasksUiPlugin;
+import org.eclipse.mylyn.tasks.core.ITask;
+import org.eclipse.mylyn.tasks.core.ITask.PriorityLevel;
+import org.eclipse.mylyn.tasks.ui.TasksUi;
+import org.eclipse.swt.events.SelectionEvent;
+import org.eclipse.swt.events.SelectionListener;
+import org.eclipse.swt.widgets.Button;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Shell;
+
+public class TaskSelectionDialogWithRandomOption extends TaskSelectionDialog {
+
+	private Button randomTaskButton;
+
+	private static final int RANDOM_ID = IDialogConstants.CLIENT_ID + 1;
+
+	public TaskSelectionDialogWithRandomOption(Shell parent) {
+		super(parent);
+		// ignore
+	}
+
+	@Override
+	protected void createAdditionalButtons(Composite parent) {
+
+		randomTaskButton = createButton(parent, RANDOM_ID, Messages.TaskSelectionDialog_Random_Task, false);
+		randomTaskButton.addSelectionListener(new SelectionListener() {
+
+			TaskList taskList = TasksUiPlugin.getTaskList();
+
+			private final Collection<AbstractTask> allTasks = new ArrayList<AbstractTask>();
+
+			public void widgetDefaultSelected(SelectionEvent e) {
+				// ignore
+			}
+
+			public void widgetSelected(SelectionEvent e) {
+
+				allTasks.addAll(taskList.getAllTasks());
+
+				List<AbstractTask> potentialTasks = new ArrayList<AbstractTask>();
+				for (AbstractTask task : allTasks) {
+					DateRange scheduledForDate = task.getScheduledForDate();
+					if (!task.getSynchronizationState().isIncoming()) { //don't consider tasks with incomings
+						if (scheduledForDate == null
+								|| !TasksUiPlugin.getTaskActivityManager().isScheduledForThisWeek(scheduledForDate)) { //don't consider tasks scheduled for current week
+							potentialTasks.add(task);
+							if (task.getPriority().equals(PriorityLevel.P4)
+									|| task.getPriority().equals(PriorityLevel.P5)) { //tasks with low priority have more chances to be chosen
+								potentialTasks.add(task);
+							}
+						}
+					}
+				}
+
+				if (potentialTasks.size() == 0) {
+					potentialTasks.addAll(allTasks);
+				}
+
+				int randomTaskIndex = new Random().nextInt(potentialTasks.size());
+				ITask randomTask = potentialTasks.get(randomTaskIndex);
+
+				TasksUi.getTaskActivityManager().activateTask(randomTask); //activate the chosen task
+				close(); //close the dialog
+			}
+		});
+	}
+
+}