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/*******************************************************************************
* Copyright (c) 2015, 2016 Obeo.
* 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:
* Obeo - initial API and implementation
*******************************************************************************/
package org.eclipse.sirius.diagram.ui.internal.edit.parts.refresh;
import java.util.Collection;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.gef.EditPart;
import org.eclipse.gmf.runtime.diagram.core.listener.DiagramEventBroker;
import org.eclipse.gmf.runtime.diagram.core.listener.NotificationListener;
import org.eclipse.gmf.runtime.diagram.ui.editparts.IGraphicalEditPart;
import org.eclipse.sirius.diagram.DDiagramElement;
import org.eclipse.sirius.diagram.ui.edit.api.part.AbstractDiagramNameEditPart;
import org.eclipse.sirius.diagram.ui.edit.api.part.AbstractNotSelectableShapeNodeEditPart;
import org.eclipse.sirius.diagram.ui.edit.api.part.IAbstractDiagramNodeEditPart;
import org.eclipse.sirius.diagram.ui.edit.api.part.IDiagramElementEditPart;
import org.eclipse.sirius.diagram.ui.edit.internal.part.DiagramElementEditPartOperation;
import org.eclipse.sirius.ecore.extender.business.api.permission.IPermissionAuthority;
import org.eclipse.sirius.ecore.extender.business.api.permission.PermissionAuthorityRegistry;
import org.eclipse.sirius.ext.gmf.runtime.gef.ui.figures.SiriusWrapLabel;
import org.eclipse.sirius.viewpoint.ViewpointPackage;
/**
* Icon refresher on semantic changes to manage when
* XXXItemProvider.getImage()/getText() is customized to return different result
* on semantic change
*
* @author <a href="mailto:esteban.dugueperoux@obeo.fr">Esteban Dugueperoux</a>
*/
public class LabelAndIconRefresher implements NotificationListener {
private IGraphicalEditPart graphicalEditPart;
public LabelAndIconRefresher(IGraphicalEditPart graphicalEditPart) {
this.graphicalEditPart = graphicalEditPart;
DiagramEventBroker broker = DiagramEventBroker.getInstance(graphicalEditPart.getEditingDomain());
DDiagramElement dDiagramElement = getDDiagramElement(graphicalEditPart);
if (broker != null && dDiagramElement != null) {
for (EObject semanticElement : dDiagramElement.getSemanticElements()) {
broker.addNotificationListener(semanticElement, this);
}
broker.addNotificationListener(dDiagramElement, ViewpointPackage.Literals.DREPRESENTATION_ELEMENT__SEMANTIC_ELEMENTS, this);
}
}
private DDiagramElement getDDiagramElement(IGraphicalEditPart graphicalEditPart) {
DDiagramElement dDiagramElement = null;
if (graphicalEditPart instanceof IDiagramElementEditPart) {
dDiagramElement = ((IDiagramElementEditPart) graphicalEditPart).resolveDiagramElement();
} else if (graphicalEditPart.getParent() instanceof IDiagramElementEditPart) {
dDiagramElement = ((IDiagramElementEditPart) graphicalEditPart.getParent()).resolveDiagramElement();
}
return dDiagramElement;
}
@Override
public void notifyChanged(Notification notification) {
if (graphicalEditPart != null && graphicalEditPart.isActive()) {
DDiagramElement dDiagramElement = getDDiagramElement(graphicalEditPart);
final IPermissionAuthority auth = PermissionAuthorityRegistry.getDefault().getPermissionAuthority(graphicalEditPart.getEditingDomain().getResourceSet());
if (dDiagramElement != null && dDiagramElement.getSemanticElements().contains(notification.getNotifier()) && auth.canEditInstance(dDiagramElement)) {
refreshLabelAndIcon(dDiagramElement);
} else if (ViewpointPackage.Literals.DREPRESENTATION_ELEMENT__SEMANTIC_ELEMENTS == notification.getFeature()) {
// Manage change on DRepresentationElement.semanticElements
// reference
DiagramEventBroker broker = DiagramEventBroker.getInstance(graphicalEditPart.getEditingDomain());
if (notification.getEventType() == Notification.ADD || notification.getEventType() == Notification.ADD_MANY) {
Object newValue = notification.getNewValue();
if (newValue instanceof Collection<?>) {
for (Object newVal : (Collection<?>) newValue) {
if (newVal instanceof EObject) {
broker.addNotificationListener((EObject) newVal, this);
}
}
} else if (newValue instanceof EObject) {
broker.addNotificationListener((EObject) newValue, this);
}
} else if (notification.getEventType() == Notification.REMOVE || notification.getEventType() == Notification.REMOVE_MANY) {
Object oldValue = notification.getOldValue();
if (oldValue instanceof Collection<?>) {
for (Object oldVal : (Collection<?>) oldValue) {
if (oldVal instanceof EObject) {
broker.removeNotificationListener((EObject) oldVal, this);
}
}
} else if (oldValue instanceof EObject) {
broker.removeNotificationListener((EObject) oldValue, this);
}
}
}
}
}
private void refreshLabelAndIcon(DDiagramElement dDiagramElement) {
SiriusWrapLabel siriusWrapLabel = null;
IDiagramElementEditPart diagramElementEditPart = null;
if (graphicalEditPart instanceof AbstractDiagramNameEditPart) {
if (graphicalEditPart.getFigure() instanceof SiriusWrapLabel) {
siriusWrapLabel = (SiriusWrapLabel) graphicalEditPart.getFigure();
diagramElementEditPart = (AbstractDiagramNameEditPart) graphicalEditPart;
}
} else if (graphicalEditPart instanceof AbstractNotSelectableShapeNodeEditPart) {
EditPart parent = graphicalEditPart.getParent();
if (parent instanceof IAbstractDiagramNodeEditPart) {
diagramElementEditPart = (IAbstractDiagramNodeEditPart) parent;
siriusWrapLabel = ((IAbstractDiagramNodeEditPart) diagramElementEditPart).getNodeLabel();
}
}
if (diagramElementEditPart != null) {
DiagramElementEditPartOperation.refreshLabelAndIcon(diagramElementEditPart, dDiagramElement, siriusWrapLabel);
}
}
public void dispose() {
DiagramEventBroker broker = DiagramEventBroker.getInstance(graphicalEditPart.getEditingDomain());
if (broker != null) {
DDiagramElement dDiagramElement = getDDiagramElement(graphicalEditPart);
if (dDiagramElement != null) {
broker.removeNotificationListener(dDiagramElement, ViewpointPackage.Literals.DREPRESENTATION_ELEMENT__SEMANTIC_ELEMENTS, this);
EList<EObject> semanticElements = dDiagramElement.getSemanticElements();
if (semanticElements != null) {
for (EObject semanticElement : semanticElements) {
broker.removeNotificationListener(semanticElement, this);
}
}
}
}
graphicalEditPart = null;
}
}
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