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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.tasks.ui.actions;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.mylar.core.MylarPlugin;
import org.eclipse.mylar.tasks.ITask;
import org.eclipse.mylar.tasks.ITaskListElement;
import org.eclipse.mylar.tasks.TaskListImages;
import org.eclipse.mylar.tasks.MylarTasksPlugin;
import org.eclipse.mylar.tasks.internal.TaskCategory;
import org.eclipse.mylar.tasks.ui.views.TaskListView;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.internal.Workbench;
/**
* @author Mik Kersten and Ken Sueda
*/
public class DeleteAction extends Action {
public static final String ID = "org.eclipse.mylar.tasks.actions.delete";
private final TaskListView view;
public DeleteAction(TaskListView view) {
this.view = view;
setText("Delete");
setId(ID);
setImageDescriptor(TaskListImages.REMOVE);
}
@Override
public void run() {
// MylarPlugin.getDefault().actionObserved(this);
Object selectedObject = ((IStructuredSelection) this.view.getViewer()
.getSelection()).getFirstElement();
if(selectedObject instanceof ITaskListElement &&
MylarTasksPlugin.getDefault().getTaskHandlerForElement((ITaskListElement)selectedObject) != null){
MylarTasksPlugin.getDefault().getTaskHandlerForElement((ITaskListElement) selectedObject).itemDeleted((ITaskListElement)selectedObject);
}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 = task.getDeleteConfirmationMessage();
boolean deleteConfirmed = MessageDialog.openQuestion(
Workbench.getInstance().getActiveWorkbenchWindow().getShell(),
"Confirm delete", message);
if (!deleteConfirmed)
return;
MylarTasksPlugin.getTaskListManager().deleteTask(task);
MylarPlugin.getContextManager().taskDeleted(task.getHandle(), task.getPath());
IWorkbenchPage page = MylarTasksPlugin.getDefault().getWorkbench().getActiveWorkbenchWindow().getActivePage();
// if we couldn't get the page, get out of here
if (page == null)
return;
try {
this.view.closeTaskEditors((ITask) selectedObject, page);
} catch (Exception e) {
MylarPlugin.log(e, " deletion failed");
}
} 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().taskDeleted(task.getHandle(), task.getPath());
IWorkbenchPage page = MylarTasksPlugin.getDefault().getWorkbench().getActiveWorkbenchWindow().getActivePage();
if (page != null) {
try {
this.view.closeTaskEditors(task, page);
} catch (Exception e) {
MylarPlugin.log(e, " deletion failed");
}
}
}
MylarTasksPlugin.getTaskListManager().deleteCategory(cat);
} else {
MessageDialog.openError(Workbench.getInstance()
.getActiveWorkbenchWindow().getShell(), "Delete failed",
"Nothing selected.");
return;
}
this.view.getViewer().refresh();
}
}
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