| /******************************************************************************* |
| * Copyright (c) 2013, 2016 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 |
| * Patrik Suzzi <psuzzi@gmail.com> - Bug 494680 |
| ******************************************************************************/ |
| package org.eclipse.ui.internal; |
| |
| import java.util.List; |
| import org.eclipse.core.commands.AbstractHandler; |
| import org.eclipse.core.commands.ExecutionEvent; |
| import org.eclipse.core.commands.ExecutionException; |
| import org.eclipse.e4.ui.model.application.ui.MUIElement; |
| import org.eclipse.e4.ui.model.application.ui.basic.MCompositePart; |
| import org.eclipse.e4.ui.model.application.ui.basic.MPart; |
| import org.eclipse.e4.ui.model.application.ui.basic.MPartStack; |
| import org.eclipse.e4.ui.model.application.ui.basic.MStackElement; |
| import org.eclipse.e4.ui.workbench.IPresentationEngine; |
| import org.eclipse.e4.ui.workbench.modeling.EModelService; |
| import org.eclipse.ui.IEditorPart; |
| import org.eclipse.ui.IWorkbenchWindow; |
| import org.eclipse.ui.handlers.HandlerUtil; |
| |
| /** |
| * Our sample handler extends AbstractHandler, an IHandler base class. |
| * |
| * @see org.eclipse.core.commands.IHandler |
| * @see org.eclipse.core.commands.AbstractHandler |
| */ |
| public class SplitHandler extends AbstractHandler { |
| private EModelService modelService; |
| private IWorkbenchWindow window; |
| |
| @Override |
| public Object execute(ExecutionEvent event) throws ExecutionException { |
| // Only works for the active editor |
| IEditorPart activeEditor = HandlerUtil.getActiveEditor(event); |
| if (activeEditor == null) |
| return null; |
| |
| MPart editorPart = activeEditor.getSite().getService(MPart.class); |
| if (editorPart == null) |
| return null; |
| |
| window = HandlerUtil.getActiveWorkbenchWindowChecked(event); |
| |
| // Get services |
| modelService = editorPart.getContext().get(EModelService.class); |
| |
| MPartStack stack = getStackFor(editorPart); |
| if (stack == null) |
| return null; |
| |
| window.getShell().setRedraw(false); |
| try { |
| // Determine which part has the tags |
| MStackElement stackSelElement = stack.getSelectedElement(); |
| MPart taggedEditor = editorPart; |
| if (stackSelElement instanceof MCompositePart) { |
| List<MPart> innerElements = modelService.findElements(stackSelElement, null, MPart.class); |
| taggedEditor = innerElements.get(1); // '0' is the composite part |
| } |
| |
| if ("false".equals(event.getParameter("Splitter.isHorizontal"))) { //$NON-NLS-1$ //$NON-NLS-2$ |
| if (taggedEditor.getTags().contains(IPresentationEngine.SPLIT_VERTICAL)) { |
| taggedEditor.getTags().remove(IPresentationEngine.SPLIT_VERTICAL); |
| } else { |
| editorPart.getTags().remove(IPresentationEngine.SPLIT_HORIZONTAL); |
| editorPart.getTags().add(IPresentationEngine.SPLIT_VERTICAL); |
| } |
| } else if (taggedEditor.getTags().contains(IPresentationEngine.SPLIT_HORIZONTAL)) { |
| taggedEditor.getTags().remove(IPresentationEngine.SPLIT_HORIZONTAL); |
| } else { |
| editorPart.getTags().remove(IPresentationEngine.SPLIT_VERTICAL); |
| editorPart.getTags().add(IPresentationEngine.SPLIT_HORIZONTAL); |
| } |
| } finally { |
| window.getShell().setRedraw(true); |
| } |
| |
| return null; |
| } |
| |
| private MPartStack getStackFor(MPart part) { |
| MUIElement presentationElement = part.getCurSharedRef() == null ? part : part.getCurSharedRef(); |
| MUIElement parent = presentationElement.getParent(); |
| while (parent != null && !(parent instanceof MPartStack)) |
| parent = parent.getParent(); |
| |
| return (MPartStack) parent; |
| } |
| } |