package org.eclipse.gmf.examples.eclipsecon.library.diagram.navigator;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import org.eclipse.core.resources.IFile;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.emf.ecore.resource.ResourceSet;
import org.eclipse.emf.edit.domain.AdapterFactoryEditingDomain;
import org.eclipse.gmf.examples.eclipsecon.library.diagram.edit.parts.AuthorEditPart;
import org.eclipse.gmf.examples.eclipsecon.library.diagram.edit.parts.BookEditPart;
import org.eclipse.gmf.examples.eclipsecon.library.diagram.edit.parts.EmployeeEditPart;
import org.eclipse.gmf.examples.eclipsecon.library.diagram.edit.parts.EmployeeShelvesEditPart;
import org.eclipse.gmf.examples.eclipsecon.library.diagram.edit.parts.LibraryEditPart;
import org.eclipse.gmf.examples.eclipsecon.library.diagram.edit.parts.ShelfBooksCompartmentEditPart;
import org.eclipse.gmf.examples.eclipsecon.library.diagram.edit.parts.ShelfEditPart;
import org.eclipse.gmf.examples.eclipsecon.library.diagram.part.Library07VisualIDRegistry;
import org.eclipse.gmf.examples.eclipsecon.library.diagram.part.Messages;
import org.eclipse.gmf.runtime.emf.core.GMFEditingDomainFactory;
import org.eclipse.gmf.runtime.notation.Diagram;
import org.eclipse.gmf.runtime.notation.Edge;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.ui.IMemento;
import org.eclipse.ui.navigator.ICommonContentExtensionSite;
import org.eclipse.ui.navigator.ICommonContentProvider;
/**
* @generated
*/
public class Library07NavigatorContentProvider implements
ICommonContentProvider {
/**
* @generated
*/
private static final Object[] EMPTY_ARRAY = new Object[0];
/**
* @generated
*/
public void dispose() {
}
/**
* @generated
*/
public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
}
/**
* @generated
*/
public Object[] getElements(Object inputElement) {
return getChildren(inputElement);
}
/**
* @generated
*/
public void restoreState(IMemento aMemento) {
}
/**
* @generated
*/
public void saveState(IMemento aMemento) {
}
/**
* @generated
*/
public void init(ICommonContentExtensionSite aConfig) {
}
/**
* @generated
*/
public Object[] getChildren(Object parentElement) {
if (parentElement instanceof IFile) {
IFile file = (IFile) parentElement;
AdapterFactoryEditingDomain editingDomain = (AdapterFactoryEditingDomain) GMFEditingDomainFactory.INSTANCE
.createEditingDomain();
editingDomain.setResourceToReadOnlyMap(new HashMap() {
public Object get(Object key) {
if (!containsKey(key)) {
put(key, Boolean.TRUE);
}
return super.get(key);
}
});
ResourceSet resourceSet = editingDomain.getResourceSet();
org.eclipse.emf.common.util.URI fileURI = org.eclipse.emf.common.util.URI
.createPlatformResourceURI(file.getFullPath().toString(),
true);
Resource resource = resourceSet.getResource(fileURI, true);
Collection result = new ArrayList();
result.addAll(createNavigatorItems(selectViewsByType(resource
.getContents(), LibraryEditPart.MODEL_ID), file, false));
return result.toArray();
}
if (parentElement instanceof Library07NavigatorGroup) {
Library07NavigatorGroup group = (Library07NavigatorGroup) parentElement;
return group.getChildren();
}
if (parentElement instanceof Library07NavigatorItem) {
Library07NavigatorItem navigatorItem = (Library07NavigatorItem) parentElement;
if (navigatorItem.isLeaf() || !isOwnView(navigatorItem.getView())) {
return EMPTY_ARRAY;
}
return getViewChildren(navigatorItem.getView(), parentElement);
}
return EMPTY_ARRAY;
}
/**
* @generated
*/
private Object[] getViewChildren(View view, Object parentElement) {
switch (Library07VisualIDRegistry.getVisualID(view)) {
case LibraryEditPart.VISUAL_ID: {
Collection result = new ArrayList();
Library07NavigatorGroup links = new Library07NavigatorGroup(
Messages.NavigatorGroupName_Library_79_links,
"icons/linksNavigatorGroup.gif", parentElement); //$NON-NLS-1$
Collection connectedViews = getChildrenByType(Collections
.singleton(view), AuthorEditPart.VISUAL_ID);
result.addAll(createNavigatorItems(connectedViews, parentElement,
false));
connectedViews = getChildrenByType(Collections.singleton(view),
ShelfEditPart.VISUAL_ID);
result.addAll(createNavigatorItems(connectedViews, parentElement,
false));
connectedViews = getChildrenByType(Collections.singleton(view),
EmployeeEditPart.VISUAL_ID);
result.addAll(createNavigatorItems(connectedViews, parentElement,
false));
connectedViews = getDiagramLinksByType(Collections.singleton(view),
EmployeeShelvesEditPart.VISUAL_ID);
links
.addChildren(createNavigatorItems(connectedViews, links,
false));
if (!links.isEmpty()) {
result.add(links);
}
return result.toArray();
}
case ShelfEditPart.VISUAL_ID: {
Collection result = new ArrayList();
Library07NavigatorGroup incominglinks = new Library07NavigatorGroup(
Messages.NavigatorGroupName_Shelf_1002_incominglinks,
"icons/incomingLinksNavigatorGroup.gif", parentElement); //$NON-NLS-1$
Collection connectedViews = getChildrenByType(Collections
.singleton(view), ShelfBooksCompartmentEditPart.VISUAL_ID);
connectedViews = getChildrenByType(connectedViews,
BookEditPart.VISUAL_ID);
result.addAll(createNavigatorItems(connectedViews, parentElement,
false));
connectedViews = getIncomingLinksByType(
Collections.singleton(view),
EmployeeShelvesEditPart.VISUAL_ID);
incominglinks.addChildren(createNavigatorItems(connectedViews,
incominglinks, true));
if (!incominglinks.isEmpty()) {
result.add(incominglinks);
}
return result.toArray();
}
case EmployeeEditPart.VISUAL_ID: {
Collection result = new ArrayList();
Library07NavigatorGroup outgoinglinks = new Library07NavigatorGroup(
Messages.NavigatorGroupName_Employee_1003_outgoinglinks,
"icons/outgoingLinksNavigatorGroup.gif", parentElement); //$NON-NLS-1$
Collection connectedViews = getOutgoingLinksByType(Collections
.singleton(view), EmployeeShelvesEditPart.VISUAL_ID);
outgoinglinks.addChildren(createNavigatorItems(connectedViews,
outgoinglinks, true));
if (!outgoinglinks.isEmpty()) {
result.add(outgoinglinks);
}
return result.toArray();
}
case EmployeeShelvesEditPart.VISUAL_ID: {
Collection result = new ArrayList();
Library07NavigatorGroup target = new Library07NavigatorGroup(
Messages.NavigatorGroupName_EmployeeShelves_3001_target,
"icons/linkTargetNavigatorGroup.gif", parentElement); //$NON-NLS-1$
Library07NavigatorGroup source = new Library07NavigatorGroup(
Messages.NavigatorGroupName_EmployeeShelves_3001_source,
"icons/linkSourceNavigatorGroup.gif", parentElement); //$NON-NLS-1$
Collection connectedViews = getLinksTargetByType(Collections
.singleton(view), ShelfEditPart.VISUAL_ID);
target.addChildren(createNavigatorItems(connectedViews, target,
true));
connectedViews = getLinksSourceByType(Collections.singleton(view),
EmployeeEditPart.VISUAL_ID);
source.addChildren(createNavigatorItems(connectedViews, source,
true));
if (!target.isEmpty()) {
result.add(target);
}
if (!source.isEmpty()) {
result.add(source);
}
return result.toArray();
}
}
return EMPTY_ARRAY;
}
/**
* @generated
*/
private Collection getLinksSourceByType(Collection edges, int visualID) {
Collection result = new ArrayList();
String type = Library07VisualIDRegistry.getType(visualID);
for (Iterator it = edges.iterator(); it.hasNext();) {
Edge nextEdge = (Edge) it.next();
View nextEdgeSource = nextEdge.getSource();
if (type.equals(nextEdgeSource.getType())
&& isOwnView(nextEdgeSource)) {
result.add(nextEdgeSource);
}
}
return result;
}
/**
* @generated
*/
private Collection getLinksTargetByType(Collection edges, int visualID) {
Collection result = new ArrayList();
String type = Library07VisualIDRegistry.getType(visualID);
for (Iterator it = edges.iterator(); it.hasNext();) {
Edge nextEdge = (Edge) it.next();
View nextEdgeTarget = nextEdge.getTarget();
if (type.equals(nextEdgeTarget.getType())
&& isOwnView(nextEdgeTarget)) {
result.add(nextEdgeTarget);
}
}
return result;
}
/**
* @generated
*/
private Collection getOutgoingLinksByType(Collection nodes, int visualID) {
Collection result = new ArrayList();
String type = Library07VisualIDRegistry.getType(visualID);
for (Iterator it = nodes.iterator(); it.hasNext();) {
View nextNode = (View) it.next();
result.addAll(selectViewsByType(nextNode.getSourceEdges(), type));
}
return result;
}
/**
* @generated
*/
private Collection getIncomingLinksByType(Collection nodes, int visualID) {
Collection result = new ArrayList();
String type = Library07VisualIDRegistry.getType(visualID);
for (Iterator it = nodes.iterator(); it.hasNext();) {
View nextNode = (View) it.next();
result.addAll(selectViewsByType(nextNode.getTargetEdges(), type));
}
return result;
}
/**
* @generated
*/
private Collection getChildrenByType(Collection nodes, int visualID) {
Collection result = new ArrayList();
String type = Library07VisualIDRegistry.getType(visualID);
for (Iterator it = nodes.iterator(); it.hasNext();) {
View nextNode = (View) it.next();
result.addAll(selectViewsByType(nextNode.getChildren(), type));
}
return result;
}
/**
* @generated
*/
private Collection getDiagramLinksByType(Collection diagrams, int visualID) {
Collection result = new ArrayList();
String type = Library07VisualIDRegistry.getType(visualID);
for (Iterator it = diagrams.iterator(); it.hasNext();) {
Diagram nextDiagram = (Diagram) it.next();
result.addAll(selectViewsByType(nextDiagram.getEdges(), type));
}
return result;
}
/**
* @generated
*/
private Collection selectViewsByType(Collection views, String type) {
Collection result = new ArrayList();
for (Iterator it = views.iterator(); it.hasNext();) {
View nextView = (View) it.next();
if (type.equals(nextView.getType()) && isOwnView(nextView)) {
result.add(nextView);
}
}
return result;
}
/**
* @generated
*/
private boolean isOwnView(View view) {
return LibraryEditPart.MODEL_ID.equals(Library07VisualIDRegistry
.getModelID(view));
}
/**
* @generated
*/
private Collection createNavigatorItems(Collection views, Object parent,
boolean isLeafs) {
Collection result = new ArrayList();
for (Iterator it = views.iterator(); it.hasNext();) {
result.add(new Library07NavigatorItem((View) it.next(), parent,
isLeafs));
}
return result;
}
/**
* @generated
*/
public Object getParent(Object element) {
if (element instanceof Library07AbstractNavigatorItem) {
Library07AbstractNavigatorItem abstractNavigatorItem = (Library07AbstractNavigatorItem) element;
return abstractNavigatorItem.getParent();
}
return null;
}
/**
* @generated
*/
public boolean hasChildren(Object element) {
return element instanceof IFile || getChildren(element).length > 0;
}
}
