| /******************************************************************************* |
| * Copyright (c) 2005, 2020 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 |
| * Friederike Schertel <friederike@schertel.org> - Bug 478336 |
| * Christoph Läubrich - fix Bug 541228 |
| *******************************************************************************/ |
| package org.eclipse.ui.internal; |
| |
| import java.io.IOException; |
| import java.io.StringReader; |
| import java.io.StringWriter; |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.e4.core.contexts.IEclipseContext; |
| import org.eclipse.e4.ui.model.application.ui.basic.MPart; |
| import org.eclipse.osgi.util.NLS; |
| import org.eclipse.ui.IMemento; |
| import org.eclipse.ui.IViewPart; |
| import org.eclipse.ui.IViewReference; |
| import org.eclipse.ui.IWorkbenchPage; |
| import org.eclipse.ui.IWorkbenchPart; |
| import org.eclipse.ui.PartInitException; |
| import org.eclipse.ui.WorkbenchException; |
| import org.eclipse.ui.XMLMemento; |
| import org.eclipse.ui.internal.registry.ViewDescriptor; |
| |
| public class ViewReference extends WorkbenchPartReference implements IViewReference { |
| |
| private ViewDescriptor descriptor; |
| private IMemento memento; |
| |
| public ViewReference(IEclipseContext windowContext, IWorkbenchPage page, MPart part, ViewDescriptor descriptor) { |
| super(windowContext, page, part); |
| this.descriptor = descriptor; |
| |
| String mementoString = getModel().getPersistedState().get(MEMENTO_KEY); |
| if (mementoString != null) { |
| try { |
| memento = XMLMemento.createReadRoot(new StringReader(mementoString)); |
| } catch (WorkbenchException e) { |
| WorkbenchPlugin.log(e); |
| } |
| } |
| } |
| |
| public void persist() { |
| IViewPart view = getView(false); |
| if (view != null) { |
| XMLMemento root = XMLMemento.createWriteRoot("view"); //$NON-NLS-1$ |
| view.saveState(root); |
| StringWriter writer = new StringWriter(); |
| try { |
| root.save(writer); |
| getModel().getPersistedState().put(MEMENTO_KEY, writer.toString()); |
| } catch (IOException e) { |
| WorkbenchPlugin.log(e); |
| } |
| } |
| } |
| |
| @Override |
| public String getPartName() { |
| return descriptor == null ? "" : descriptor.getLabel(); //$NON-NLS-1$ |
| } |
| |
| @Override |
| public String getSecondaryId() { |
| MPart part = getModel(); |
| |
| int colonIndex = part.getElementId().indexOf(':'); |
| if (colonIndex == -1 || colonIndex == (part.getElementId().length() - 1)) |
| return null; |
| |
| return part.getElementId().substring(colonIndex + 1); |
| } |
| |
| @Override |
| public IViewPart getView(boolean restore) { |
| return (IViewPart) getPart(restore); |
| } |
| |
| @Override |
| public boolean isFastView() { |
| return false; |
| } |
| |
| @Override |
| public IWorkbenchPart createPart() throws PartInitException { |
| try { |
| if (descriptor == null) { |
| return createErrorPart(); |
| } |
| |
| return descriptor.createView(); |
| } catch (CoreException e) { |
| IStatus status = e.getStatus(); |
| throw new PartInitException( |
| new Status(IStatus.ERROR, WorkbenchPlugin.PI_WORKBENCH, status.getCode(), status.getMessage(), e)); |
| } |
| } |
| |
| @Override |
| IWorkbenchPart createErrorPart() { |
| IStatus status = new Status(IStatus.ERROR, WorkbenchPlugin.PI_WORKBENCH, |
| NLS.bind(WorkbenchMessages.ViewFactory_initException, getModel().getElementId()), new Exception()); |
| return createErrorPart(status); |
| } |
| |
| @Override |
| public IWorkbenchPart createErrorPart(IStatus status) { |
| return new ErrorViewPart(status); |
| } |
| |
| @Override |
| public void initialize(IWorkbenchPart part) throws PartInitException { |
| ViewSite viewSite = new ViewSite(getModel(), part, this, |
| descriptor == null ? null : descriptor.getConfigurationElement()); |
| IViewPart view = (IViewPart) part; |
| view.init(viewSite, memento); |
| |
| if (view.getSite() != viewSite || view.getViewSite() != viewSite) { |
| String id = descriptor == null ? getModel().getElementId() : descriptor.getId(); |
| throw new PartInitException(NLS.bind(WorkbenchMessages.ViewFactory_siteException, id)); |
| } |
| |
| legacyPart = part; |
| addPropertyListeners(); |
| } |
| |
| @Override |
| public PartSite getSite() { |
| if (legacyPart != null) { |
| return (PartSite) legacyPart.getSite(); |
| } |
| return null; |
| } |
| |
| public ViewDescriptor getDescriptor() { |
| return descriptor; |
| } |
| } |