| /******************************************************************************* |
| * Copyright (c) 2000, 2006 IBM Corporation 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: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.ui.views.tasklist; |
| |
| import java.util.List; |
| |
| import org.eclipse.core.commands.operations.IUndoableOperation; |
| import org.eclipse.core.resources.IMarker; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| import org.eclipse.jface.viewers.TableViewer; |
| import org.eclipse.swt.widgets.Table; |
| import org.eclipse.ui.PlatformUI; |
| import org.eclipse.ui.ide.undo.DeleteMarkersOperation; |
| import org.eclipse.ui.ide.undo.WorkspaceUndoUtil; |
| import org.eclipse.ui.internal.views.tasklist.TaskListMessages; |
| |
| /** |
| * This action removes the selected task(s) from the task list. |
| * Only tasks can be removed. Problems can only disappear from |
| * the task list when they are fixed in the associated code. |
| */ |
| class RemoveTaskAction extends TaskAction { |
| |
| /** |
| * Creates the action. |
| * |
| * @param tasklist the task list |
| * @param id the id |
| */ |
| public RemoveTaskAction(TaskList tasklist, String id) { |
| super(tasklist, id); |
| PlatformUI.getWorkbench().getHelpSystem().setHelp(this, |
| ITaskListHelpContextIds.REMOVE_TASK_ACTION); |
| } |
| |
| /** |
| * Removes all the tasks in the current selection from the task list. |
| */ |
| public void run() { |
| TaskList taskList = getTaskList(); |
| TableViewer viewer = taskList.getTableViewer(); |
| IStructuredSelection selection = (IStructuredSelection) viewer |
| .getSelection(); |
| if (selection.isEmpty()) { |
| return; |
| } |
| taskList.cancelEditing(); |
| // get the index of the selected item which has focus |
| Table table = viewer.getTable(); |
| int focusIndex = table.getSelectionIndex(); |
| List list = selection.toList(); |
| IMarker[] markers = new IMarker[list.size()]; |
| list.toArray(markers); |
| IUndoableOperation op = new DeleteMarkersOperation(markers, TaskListMessages.RemoveTask_undoText); |
| execute(op, TaskListMessages.RemoveTask_errorMessage, null, |
| WorkspaceUndoUtil.getUIInfoAdapter(getShell())); |
| // set the selection to be the one which took the place of the one with focus |
| int count = table.getItemCount(); |
| if (focusIndex < count) { |
| table.setSelection(focusIndex); |
| } else if (count != 0) { |
| table.setSelection(count - 1); |
| } |
| // update the viewer's selection, since setting the table selection does not notify the viewer |
| viewer.setSelection(viewer.getSelection(), true); |
| } |
| } |