| /******************************************************************************* |
| * Copyright (c) 2012, 2013 Frank Becker 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: |
| * Frank Becker - initial API and implementation |
| * Tasktop Technologies - improvements |
| *******************************************************************************/ |
| |
| package org.eclipse.mylyn.internal.tasks.ui.commands; |
| |
| import java.util.Iterator; |
| import java.util.Map; |
| |
| import org.eclipse.core.commands.AbstractHandler; |
| import org.eclipse.core.commands.Command; |
| import org.eclipse.core.commands.ExecutionEvent; |
| import org.eclipse.core.commands.ExecutionException; |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.jface.viewers.ISelectionProvider; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| import org.eclipse.mylyn.internal.tasks.ui.TasksUiPlugin; |
| import org.eclipse.mylyn.tasks.core.TaskRepository; |
| import org.eclipse.ui.IWorkbenchPage; |
| import org.eclipse.ui.IWorkbenchPart; |
| import org.eclipse.ui.IWorkbenchWindow; |
| import org.eclipse.ui.commands.IElementUpdater; |
| import org.eclipse.ui.handlers.HandlerUtil; |
| import org.eclipse.ui.internal.WorkbenchWindow; |
| import org.eclipse.ui.menus.UIElement; |
| |
| /** |
| * @author Frank Becker |
| * @author Steffen Pingel |
| */ |
| public class DisconnectHandler extends AbstractHandler implements IElementUpdater { |
| |
| public Object execute(ExecutionEvent event) throws ExecutionException { |
| Command command0 = event.getCommand(); |
| |
| boolean oldValue = HandlerUtil.toggleCommandState(command0); |
| ISelection selection = HandlerUtil.getCurrentSelection(event); |
| if (selection instanceof IStructuredSelection) { |
| for (Iterator<?> iter = ((IStructuredSelection) selection).iterator(); iter.hasNext();) { |
| Object item = iter.next(); |
| if (item instanceof TaskRepository) { |
| ((TaskRepository) item).setOffline(!oldValue); |
| TasksUiPlugin.getRepositoryManager().notifyRepositorySettingsChanged((TaskRepository) item); |
| } |
| } |
| } |
| return null; |
| } |
| |
| public void updateElement(UIElement element, @SuppressWarnings("rawtypes") Map parameters) { |
| IWorkbenchWindow window = (IWorkbenchWindow) element.getServiceLocator().getService(IWorkbenchWindow.class); |
| if (window != null) { |
| IWorkbenchPage activePage = ((WorkbenchWindow) window).getActivePage(); |
| if (activePage != null) { |
| IWorkbenchPart activePart = activePage.getActivePart(); |
| if (activePart != null) { |
| ISelectionProvider selectionProvider = activePart.getSite().getSelectionProvider(); |
| if (selectionProvider != null) { |
| ISelection selection = selectionProvider.getSelection(); |
| if (selection instanceof IStructuredSelection) { |
| // only for enabled Handlers the updateElement is called |
| // so we only need the first repository for set the state |
| Object firstRepository = ((IStructuredSelection) selection).getFirstElement(); |
| if (firstRepository instanceof TaskRepository) { |
| boolean checked = ((TaskRepository) firstRepository).isOffline(); |
| element.setChecked(checked); |
| } |
| } |
| } |
| } |
| } |
| } |
| } |
| } |