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/*******************************************************************************
* Copyright (c) 2005, 2013 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
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.jface.resource.ImageDescriptor;
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;
if (descriptor == null) {
setImageDescriptor(ImageDescriptor.getMissingImageDescriptor());
} else {
setImageDescriptor(descriptor.getImageDescriptor());
}
String mementoString = getModel().getPersistedState().get(MEMENTO_KEY);
if (mementoString != null) {
try {
memento = XMLMemento.createReadRoot(new StringReader(mementoString));
} catch (WorkbenchException e) {
WorkbenchPlugin.log(e);
}
}
}
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);
}
}
}
public String getPartName() {
return descriptor.getLabel();
}
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);
}
public IViewPart getView(boolean restore) {
return (IViewPart) getPart(restore);
}
public boolean isFastView() {
// TODO Auto-generated method stub
return false;
}
/*
* (non-Javadoc)
*
* @see
* org.eclipse.ui.internal.e4.compatibility.WorkbenchPartReference#createPart
* ()
*/
@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()));
return createErrorPart(status);
}
@Override
public IWorkbenchPart createErrorPart(IStatus status) {
return new ErrorViewPart(status);
}
/*
* (non-Javadoc)
*
* @see
* org.eclipse.ui.internal.e4.compatibility.WorkbenchPartReference#initialize
* (org.eclipse.ui.IWorkbenchPart)
*/
@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;
}
}
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