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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 org.eclipse.jface.action.Action;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.mylar.core.MylarPlugin;
import org.eclipse.mylar.core.util.ErrorLogger;
import org.eclipse.mylar.tasklist.ITask;
import org.eclipse.mylar.tasklist.MylarTaskListPlugin;
import org.eclipse.mylar.tasklist.internal.TaskCategory;
import org.eclipse.mylar.tasklist.ui.ITaskListElement;
import org.eclipse.mylar.tasklist.ui.views.TaskListView;
import org.eclipse.ui.ISharedImages;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.internal.Workbench;
import org.eclipse.ui.internal.WorkbenchImages;
/**
* @author Mik Kersten and Ken Sueda
*/
public class DeleteAction extends Action {
public static final String ID = "org.eclipse.mylar.tasklist.actions.delete";
private final TaskListView view;
public DeleteAction(TaskListView view) {
this.view = view;
setText("Delete");
setId(ID);
setImageDescriptor(WorkbenchImages.getImageDescriptor(ISharedImages.IMG_TOOL_DELETE));
}
@Override
public void run() {
ISelection selection = TaskListView.getDefault().getViewer().getSelection();
for (Object selectedObject : ((IStructuredSelection) selection).toList()) {
if (selectedObject instanceof ITaskListElement
&& MylarTaskListPlugin.getDefault().getHandlerForElement((ITaskListElement) selectedObject) != null) {
boolean deleted = MylarTaskListPlugin.getDefault().getHandlerForElement(
(ITaskListElement) selectedObject).deleteElement((ITaskListElement) selectedObject);
if (deleted) {
// TODO: refactor category removal?
new RemoveFromCategoryAction(view).run();
}
} else if (selectedObject instanceof ITask) {
ITask task = (ITask) selectedObject;
if (task.isActive()) {
MessageDialog.openError(Workbench.getInstance().getActiveWorkbenchWindow().getShell(),
"Delete failed", "Task must be deactivated in order to delete.");
return;
}
String message = genDeleteConfirmationMessage(task);
boolean deleteConfirmed = MessageDialog.openQuestion(Workbench.getInstance().getActiveWorkbenchWindow()
.getShell(), "Confirm delete", message);
if (!deleteConfirmed) {
return;
}
MylarTaskListPlugin.getTaskListManager().deleteTask(task);
MylarPlugin.getContextManager().contextDeleted(task.getHandleIdentifier());
IWorkbenchPage page = MylarTaskListPlugin.getDefault().getWorkbench().getActiveWorkbenchWindow()
.getActivePage();
if (page == null) {
return;
}
try {
view.closeTaskEditors((ITask) selectedObject, page);
} catch (Exception e) {
ErrorLogger.log(e, "closing editors failed");
}
view.getViewer().refresh();
} else if (selectedObject instanceof TaskCategory) {
boolean deleteConfirmed = MessageDialog.openQuestion(Workbench.getInstance().getActiveWorkbenchWindow()
.getShell(), "Confirm delete", "Delete the selected category and all contained tasks?");
if (!deleteConfirmed)
return;
TaskCategory cat = (TaskCategory) selectedObject;
for (ITask task : cat.getChildren()) {
MylarPlugin.getContextManager().contextDeleted(task.getHandleIdentifier());
IWorkbenchPage page = MylarTaskListPlugin.getDefault().getWorkbench().getActiveWorkbenchWindow()
.getActivePage();
if (page != null) {
try {
this.view.closeTaskEditors(task, page);
} catch (Exception e) {
ErrorLogger.log(e, " deletion failed");
}
}
}
MylarTaskListPlugin.getTaskListManager().deleteCategory(cat);
view.getViewer().refresh();
} else {
MessageDialog.openError(Workbench.getInstance().getActiveWorkbenchWindow().getShell(), "Delete failed",
"Nothing selected.");
return;
}
}
}
public static String genDeleteConfirmationMessage(ITask task) {
return "Delete the selected task and discard task context?\n\n"
+ task.getDescription(true);
}
}
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