| /******************************************************************************* |
| * Copyright (c) 2007, 2017 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| * Lars Vogel <Lars.Vogel@gmail.com> - Bug 440810 |
| * Simon Scholz <simon.scholz@vogella.com> - Bug 454143, 461063, 495917 |
| * Friederike Schertel <friederike@schertel.org> - Bug 478336 |
| * Patrik Suzzi <psuzzi@gmail.com> - Bug 504089, 509224, 509232 |
| ******************************************************************************/ |
| |
| package org.eclipse.ui.internal; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.concurrent.atomic.AtomicBoolean; |
| import java.util.stream.Collectors; |
| import org.eclipse.core.commands.Command; |
| import org.eclipse.core.commands.ParameterizedCommand; |
| import org.eclipse.e4.ui.internal.workbench.PartServiceImpl; |
| import org.eclipse.e4.ui.model.application.ui.advanced.MPerspective; |
| import org.eclipse.e4.ui.model.application.ui.basic.MPart; |
| import org.eclipse.e4.ui.workbench.addons.splitteraddon.SplitHost; |
| import org.eclipse.e4.ui.workbench.modeling.EModelService; |
| import org.eclipse.e4.ui.workbench.modeling.EPartService; |
| import org.eclipse.ui.IWorkbenchCommandConstants; |
| import org.eclipse.ui.IWorkbenchPart; |
| import org.eclipse.ui.IWorkbenchPartReference; |
| import org.eclipse.ui.commands.ICommandService; |
| |
| /** |
| * This handler is used to switch between parts using the keyboard. |
| * <p> |
| * Replacement for CyclePartAction |
| * </p> |
| * |
| * @since 3.3 |
| * |
| */ |
| public class CycleViewHandler extends FilteredTableBaseHandler { |
| |
| @Override |
| protected Object getInput(WorkbenchPage page) { |
| List<IWorkbenchPartReference> refs = new ArrayList<>(); |
| |
| EPartService partService = page.getWorkbenchWindow().getService(EPartService.class); |
| EModelService modelService = page.getWorkbenchWindow().getService(EModelService.class); |
| MPerspective currentPerspective = page.getCurrentPerspective(); |
| |
| List<MPart> parts = modelService |
| .findElements(currentPerspective, null, MPart.class, null, EModelService.PRESENTATION).stream() |
| .filter(p -> !(p.getObject() instanceof SplitHost)).collect(Collectors.toList()); |
| |
| AtomicBoolean includeEditor = new AtomicBoolean(true); |
| |
| parts.stream().sorted((firstPart, secondPart) -> { |
| Long firstPartActivationTime = (Long) firstPart.getTransientData() |
| .getOrDefault(PartServiceImpl.PART_ACTIVATION_TIME, Long.MIN_VALUE); |
| Long secondPartActivationTime = (Long) secondPart.getTransientData() |
| .getOrDefault(PartServiceImpl.PART_ACTIVATION_TIME, Long.MIN_VALUE); |
| // use decreasing order by inverting the result using "-" at the beginning |
| return -(firstPartActivationTime.compareTo(secondPartActivationTime)); |
| }).forEach(part -> { |
| if (!partService.isPartOrPlaceholderInPerspective(part.getElementId(), currentPerspective)) { |
| return; |
| } |
| if (part.getTags().contains("Editor")) { //$NON-NLS-1$ |
| if (includeEditor.getAndSet(false)) { |
| addExistingReference(refs, part); |
| } |
| } else { |
| addExistingReference(refs, part); |
| } |
| }); |
| return refs; |
| |
| } |
| |
| /* |
| * Specialized to get the static label that was shown in the past (509232) |
| */ |
| @Override |
| protected String getWorkbenchPartReferenceText(WorkbenchPartReference ref) { |
| if (ref instanceof EditorReference) { |
| return WorkbenchMessages.CyclePartAction_editor; |
| } else if (ref instanceof ViewReference) { |
| return ref.getPartName(); |
| } |
| return super.getWorkbenchPartReferenceText(ref); |
| } |
| |
| /** |
| * Adds the {@link IWorkbenchPartReference} contained in part's transient data, |
| * if exists. |
| */ |
| protected void addExistingReference(List<IWorkbenchPartReference> refs, MPart part) { |
| Object tData = part.getTransientData().get(IWorkbenchPartReference.class.getName()); |
| if (tData instanceof IWorkbenchPartReference) { |
| // instanceof checks also for non null values |
| refs.add((IWorkbenchPartReference) tData); |
| } |
| } |
| |
| @Override |
| protected ParameterizedCommand getBackwardCommand() { |
| return getParametrizedCommand(IWorkbenchCommandConstants.WINDOW_PREVIOUS_VIEW); |
| } |
| |
| @Override |
| protected ParameterizedCommand getForwardCommand() { |
| return getParametrizedCommand(IWorkbenchCommandConstants.WINDOW_NEXT_VIEW); |
| } |
| |
| private ParameterizedCommand getParametrizedCommand(String workbenchCommand) { |
| final ICommandService commandService = window.getWorkbench().getService(ICommandService.class); |
| final Command command = commandService.getCommand(workbenchCommand); |
| return new ParameterizedCommand(command, null); |
| } |
| |
| @Override |
| protected String getTableHeader(IWorkbenchPart activePart) { |
| return WorkbenchMessages.CyclePartAction_header; |
| } |
| |
| } |