| /******************************************************************************* |
| * Copyright (c) 2013 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 |
| *******************************************************************************/ |
| package org.eclipse.e4.ui.internal.workbench; |
| |
| import java.util.List; |
| import org.eclipse.e4.core.contexts.ContextFunction; |
| import org.eclipse.e4.core.contexts.IEclipseContext; |
| import org.eclipse.e4.ui.model.application.MApplication; |
| import org.eclipse.e4.ui.model.application.ui.MContext; |
| import org.eclipse.e4.ui.model.application.ui.MUIElement; |
| import org.eclipse.e4.ui.model.application.ui.basic.MPart; |
| import org.eclipse.e4.ui.model.application.ui.basic.MWindow; |
| import org.eclipse.e4.ui.workbench.IPresentationEngine; |
| |
| /** |
| * |
| */ |
| public class ActivePartLookupFunction extends ContextFunction { |
| |
| @Override |
| public Object compute(IEclipseContext context, String contextKey) { |
| /** |
| * This is the specific implementation. TODO: generalize it |
| */ |
| MContext window = context.get(MWindow.class); |
| if (window == null) { |
| window = context.get(MApplication.class); |
| if (window == null) { |
| return null; |
| } |
| } |
| IEclipseContext current = window.getContext(); |
| if (current == null) { |
| return null; |
| } |
| MPart part = current.getActiveLeaf().get(MPart.class); |
| if (part == null) |
| return null; |
| MUIElement parent = part.getCurSharedRef() != null ? part.getCurSharedRef().getParent() : part.getParent(); |
| if (parent == null) |
| return part; |
| List<String> parentTags = parent.getTags(); |
| if (parentTags.contains(IPresentationEngine.MINIMIZED) && !parentTags.contains(IPresentationEngine.ACTIVE) |
| && !part.getTags().contains(IPresentationEngine.ACTIVE)) { |
| return null; |
| } |
| return part; |
| |
| } |
| } |