| /******************************************************************************* |
| * Copyright (c) 2004, 2009 Tasktop Technologies and others. |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v. 2.0 which is available at |
| * https://www.eclipse.org/legal/epl-2.0 |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * Tasktop Technologies - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.mylyn.internal.tasks.ui.actions; |
| |
| import org.eclipse.jface.action.Action; |
| import org.eclipse.jface.action.IAction; |
| import org.eclipse.jface.action.IMenuCreator; |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.mylyn.internal.tasks.core.AbstractTask; |
| import org.eclipse.mylyn.internal.tasks.core.TaskActivationHistory; |
| import org.eclipse.mylyn.internal.tasks.ui.TaskHistoryDropDown; |
| import org.eclipse.mylyn.internal.tasks.ui.TasksUiPlugin; |
| import org.eclipse.mylyn.internal.tasks.ui.util.TasksUiInternal; |
| import org.eclipse.mylyn.internal.tasks.ui.views.TaskListView; |
| import org.eclipse.mylyn.tasks.ui.TasksUiImages; |
| import org.eclipse.swt.widgets.Control; |
| import org.eclipse.swt.widgets.Menu; |
| import org.eclipse.ui.IWorkbenchWindow; |
| import org.eclipse.ui.IWorkbenchWindowPulldownDelegate; |
| |
| /** |
| * @author Wesley Coelho |
| * @author Mik Kersten |
| * @author Leo Dos Santos |
| * @author Steffen Pingel |
| */ |
| public class ActivateTaskHistoryDropDownAction extends Action implements IWorkbenchWindowPulldownDelegate, IMenuCreator { |
| |
| public static final String ID = "org.eclipse.mylyn.tasklist.actions.navigate.previous"; //$NON-NLS-1$ |
| |
| private Menu dropDownMenu; |
| |
| private final TaskActivationHistory taskHistory; |
| |
| private final TaskHistoryDropDown taskHistoryDropDown; |
| |
| public ActivateTaskHistoryDropDownAction() { |
| this.taskHistory = TasksUiPlugin.getTaskActivityManager().getTaskActivationHistory(); |
| this.taskHistoryDropDown = new TaskHistoryDropDown(null, taskHistory); |
| setText(Messages.ActivateTaskHistoryDropDownAction_Activate_Previous_Task); |
| setToolTipText(Messages.ActivateTaskHistoryDropDownAction_Activate_Previous_Task); |
| setId(ID); |
| setEnabled(true); |
| setImageDescriptor(TasksUiImages.CONTEXT_HISTORY_PREVIOUS); |
| } |
| |
| public void dispose() { |
| // ignore |
| } |
| |
| public Menu getMenu(Control parent) { |
| if (dropDownMenu != null) { |
| dropDownMenu.dispose(); |
| } |
| dropDownMenu = new Menu(parent); |
| taskHistoryDropDown.fill(dropDownMenu, -1); |
| return dropDownMenu; |
| } |
| |
| public Menu getMenu(Menu parent) { |
| if (dropDownMenu != null) { |
| dropDownMenu.dispose(); |
| } |
| dropDownMenu = new Menu(parent); |
| taskHistoryDropDown.fill(dropDownMenu, -1); |
| return dropDownMenu; |
| } |
| |
| public void init(IWorkbenchWindow window) { |
| // ignore |
| } |
| |
| @Override |
| public void run() { |
| if (taskHistory.hasPrevious()) { |
| AbstractTask previousTask = taskHistory.getPreviousTask(); |
| if (previousTask != null && !previousTask.isActive()) { |
| TasksUiInternal.activateTaskThroughCommand(previousTask); |
| if (TaskListView.getFromActivePerspective() != null) { |
| TaskListView.getFromActivePerspective().refresh(); |
| } |
| } |
| setEnabled(taskHistory.getPreviousTasks() != null && taskHistory.getPreviousTasks().size() > 0); |
| } |
| } |
| |
| public void run(IAction action) { |
| run(); |
| } |
| |
| public void selectionChanged(IAction action, ISelection selection) { |
| // ignore |
| } |
| |
| } |