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/*****************************************************************************
* Copyright (c) 2016 CEA LIST 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:
* Nicolas FAUVERGUE (ALL4TEC) nicolas.fauvergue@all4tec.net - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.infra.editor.welcome.internationalization.modelelements;
import static org.eclipse.core.databinding.observable.Diffs.createValueDiff;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.util.Objects;
import org.eclipse.core.databinding.observable.Diffs;
import org.eclipse.core.databinding.observable.Realm;
import org.eclipse.core.databinding.observable.value.AbstractObservableValue;
import org.eclipse.emf.common.command.Command;
import org.eclipse.emf.edit.domain.EditingDomain;
import org.eclipse.papyrus.infra.core.resource.ModelSet;
import org.eclipse.papyrus.infra.core.services.ServiceException;
import org.eclipse.papyrus.infra.editor.welcome.internationalization.Activator;
import org.eclipse.papyrus.infra.emf.utils.ServiceUtilsForResourceSet;
import org.eclipse.papyrus.infra.internationalization.commands.InternationalizationPreferenceCommandFactory;
import org.eclipse.papyrus.infra.internationalization.modelresource.InternationalizationPreferenceModel;
import org.eclipse.papyrus.infra.internationalization.utils.InternationalizationPreferenceModelUtils;
import org.eclipse.papyrus.infra.ui.editor.IMultiDiagramEditor;
/**
* Encapsulation of the "shared layout" property of the Papyrus Editor.
*/
public class PrivateInternationalizationPreferenceObservableValue extends AbstractObservableValue<Boolean> implements PropertyChangeListener {
/**
* The internationalization preference model.
*/
private InternationalizationPreferenceModel internationalizationPrefModel;
/**
* The current editing domain.
*/
protected final EditingDomain domain;
/**
* Constructor.
*
* @param domain
* The current editing domain.
*/
public PrivateInternationalizationPreferenceObservableValue(final EditingDomain domain) {
this(Realm.getDefault(), domain);
}
/**
* Constructor.
*
* @param realm
* The {@link Realm}.
* @param domain
* The current editing domain.
*/
public PrivateInternationalizationPreferenceObservableValue(final Realm realm, final EditingDomain domain) {
super(realm);
this.domain = domain;
internationalizationPrefModel = InternationalizationPreferenceModelUtils.getInternationalizationPreferenceModel((ModelSet) domain.getResourceSet());
if (null != internationalizationPrefModel) {
internationalizationPrefModel.addPropertyChangeListener(InternationalizationPreferenceModel.PROPERTY_LEGACY_MODE, this);
}
}
/**
* {@inheritDoc}
*
* @see org.eclipse.core.databinding.observable.AbstractObservable#dispose()
*/
@Override
public synchronized void dispose() {
if (null != internationalizationPrefModel) {
internationalizationPrefModel.removePropertyChangeListener(InternationalizationPreferenceModel.PROPERTY_LEGACY_MODE, this);
internationalizationPrefModel = null;
}
super.dispose();
}
/**
* {@inheritDoc}
*
* @see org.eclipse.core.databinding.observable.value.AbstractObservableValue#doGetValue()
*/
@Override
protected Boolean doGetValue() {
return internationalizationPrefModel.isLegacyMode();
}
/**
* Get the command for the private storage.
*
* @param factory
* The factory to create the command.
* @return The command to manage the private storage.
*/
protected Command getToggleCommand(final InternationalizationPreferenceCommandFactory factory) {
return factory.createTogglePrivateStorageCommand();
}
/**
* {@inheritDoc}
*
* @see org.eclipse.core.databinding.observable.value.IObservableValue#getValueType()
*/
@Override
public Object getValueType() {
return Boolean.class;
}
/**
* {@inheritDoc}
*
* @see org.eclipse.core.databinding.observable.value.AbstractObservableValue#doSetValue(java.lang.Object)
*/
@Override
protected void doSetValue(final Boolean value) {
Boolean oldValue = getValue();
if (!Objects.equals(oldValue, value)) {
IMultiDiagramEditor editor;
try {
editor = ServiceUtilsForResourceSet.getInstance().getService(IMultiDiagramEditor.class, domain.getResourceSet());
final ModelSet modelSet = (ModelSet) editor.getAdapter(EditingDomain.class).getResourceSet();
final Command command = getToggleCommand(new InternationalizationPreferenceCommandFactory(modelSet));
if (command.canExecute()) {
// Don't do this in an undoable command on the history
try {
domain.getCommandStack().execute(command);
fireValueChange(Diffs.createValueDiff(oldValue, value));
} catch (Exception e) {
Activator.log.error("Failed to toggle editor page layout option", e); //$NON-NLS-1$
}
}
} catch (final ServiceException e) {
throw new IllegalStateException("No editor available in the service registry", e); //$NON-NLS-1$
}
}
}
/**
* {@inheritDoc}
*
* @see java.beans.PropertyChangeListener#propertyChange(java.beans.PropertyChangeEvent)
*/
@Override
public void propertyChange(PropertyChangeEvent evt) {
if (evt.getSource() == internationalizationPrefModel) {
switch (evt.getPropertyName()) {
case InternationalizationPreferenceModel.PROPERTY_LEGACY_MODE:
fireValueChange(createValueDiff(!(Boolean) evt.getOldValue(), !(Boolean) evt.getNewValue()));
break;
}
}
}
}
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