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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.tasks.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.context.core.ContextCorePlugin;
import org.eclipse.mylar.internal.tasks.ui.views.TaskListView;
import org.eclipse.mylar.tasks.core.AbstractQueryHit;
import org.eclipse.mylar.tasks.core.AbstractRepositoryQuery;
import org.eclipse.mylar.tasks.core.ITask;
import org.eclipse.mylar.tasks.core.TaskCategory;
import org.eclipse.mylar.tasks.ui.TasksUiPlugin;
import org.eclipse.mylar.tasks.ui.TasksUiUtil;
import org.eclipse.ui.ISharedImages;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.internal.WorkbenchImages;
/**
* @author Mik Kersten
*/
public class DeleteAction extends Action {
public static final String ID = "org.eclipse.mylar.tasklist.actions.delete";
public DeleteAction() {
setText("Delete");
setId(ID);
setImageDescriptor(WorkbenchImages.getImageDescriptor(ISharedImages.IMG_TOOL_DELETE));
}
@Override
public void run() {
ISelection selection = TaskListView.getFromActivePerspective().getViewer().getSelection();
for (Object selectedObject : ((IStructuredSelection) selection).toList()) {
if (selectedObject instanceof ITask || selectedObject instanceof AbstractQueryHit) {
ITask task = null;
if (selectedObject instanceof AbstractQueryHit) {
task = ((AbstractQueryHit) selectedObject).getCorrespondingTask();
} else {
task = (ITask) selectedObject;
}
if (task == null) {
MessageDialog.openError(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell(),
"Mylar Tasks", "No task data to delete.");
return;
}
String message = genDeleteConfirmationMessage(task);
boolean deleteConfirmed = MessageDialog.openQuestion(PlatformUI.getWorkbench().getActiveWorkbenchWindow()
.getShell(), "Confirm Delete", message);
if (!deleteConfirmed) {
return;
}
TasksUiPlugin.getTaskListManager().deactivateTask(task);
TasksUiPlugin.getTaskListManager().getTaskList().deleteTask(task);
ContextCorePlugin.getContextManager().deleteContext(task.getHandleIdentifier());
TasksUiUtil.closeEditorInActivePage(task);
} else if (selectedObject instanceof AbstractRepositoryQuery) {
boolean deleteConfirmed = MessageDialog.openQuestion(PlatformUI.getWorkbench().getActiveWorkbenchWindow()
.getShell(), "Confirm delete", "Delete the selected query? Task data will not be deleted.");
if (deleteConfirmed) {
TasksUiPlugin.getTaskListManager().getTaskList().deleteQuery((AbstractRepositoryQuery) selectedObject);
}
} else if (selectedObject instanceof TaskCategory) {
boolean deleteConfirmed = MessageDialog.openQuestion(PlatformUI.getWorkbench().getActiveWorkbenchWindow()
.getShell(), "Confirm Delete", "Delete the selected category? Contained tasks will be moved to the root.");
if (!deleteConfirmed)
return;
TaskCategory cat = (TaskCategory) selectedObject;
for (ITask task : cat.getChildren()) {
ContextCorePlugin.getContextManager().deleteContext(task.getHandleIdentifier());
TasksUiUtil.closeEditorInActivePage(task);
}
TasksUiPlugin.getTaskListManager().getTaskList().deleteCategory(cat);
} else {
MessageDialog.openError(PlatformUI.getWorkbench().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.getSummary();
}
}
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