package org.eclipse.gmf.tooling.examples.shortcut.diagram.navigator;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.LinkedList;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.emf.edit.domain.AdapterFactoryEditingDomain;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.emf.workspace.util.WorkspaceSynchronizer;
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.Node;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.gmf.tooling.examples.shortcut.diagram.edit.parts.DiagramEditPart;
import org.eclipse.gmf.tooling.examples.shortcut.diagram.edit.parts.DiagramLinkEditPart;
import org.eclipse.gmf.tooling.examples.shortcut.diagram.edit.parts.DiagramNodeEditPart;
import org.eclipse.gmf.tooling.examples.shortcut.diagram.part.Messages;
import org.eclipse.gmf.tooling.examples.shortcut.diagram.part.ShortcutVisualIDRegistry;
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 ShortcutNavigatorContentProvider implements ICommonContentProvider {
/**
* @generated
*/
private static final Object[] EMPTY_ARRAY = new Object[0];
/**
* @generated
*/
private Viewer myViewer;
/**
* @generated
*/
private AdapterFactoryEditingDomain myEditingDomain;
/**
* @generated
*/
private WorkspaceSynchronizer myWorkspaceSynchronizer;
/**
* @generated
*/
private Runnable myViewerRefreshRunnable;
/**
* @generated
*/
@SuppressWarnings({ "unchecked", "serial", "rawtypes" })
public ShortcutNavigatorContentProvider() {
TransactionalEditingDomain editingDomain = GMFEditingDomainFactory.INSTANCE.createEditingDomain();
myEditingDomain = (AdapterFactoryEditingDomain) editingDomain;
myEditingDomain.setResourceToReadOnlyMap(new HashMap() {
public Object get(Object key) {
if (!containsKey(key)) {
put(key, Boolean.TRUE);
}
return super.get(key);
}
});
myViewerRefreshRunnable = new Runnable() {
public void run() {
if (myViewer != null) {
myViewer.refresh();
}
}
};
myWorkspaceSynchronizer = new WorkspaceSynchronizer(editingDomain, new WorkspaceSynchronizer.Delegate() {
public void dispose() {
}
public boolean handleResourceChanged(final Resource resource) {
unloadAllResources();
asyncRefresh();
return true;
}
public boolean handleResourceDeleted(Resource resource) {
unloadAllResources();
asyncRefresh();
return true;
}
public boolean handleResourceMoved(Resource resource, final URI newURI) {
unloadAllResources();
asyncRefresh();
return true;
}
});
}
/**
* @generated
*/
public void dispose() {
myWorkspaceSynchronizer.dispose();
myWorkspaceSynchronizer = null;
myViewerRefreshRunnable = null;
myViewer = null;
unloadAllResources();
((TransactionalEditingDomain) myEditingDomain).dispose();
myEditingDomain = null;
}
/**
* @generated
*/
public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
myViewer = viewer;
}
/**
* @generated
*/
void unloadAllResources() {
for (Resource nextResource : myEditingDomain.getResourceSet().getResources()) {
nextResource.unload();
}
}
/**
* @generated
*/
void asyncRefresh() {
if (myViewer != null && !myViewer.getControl().isDisposed()) {
myViewer.getControl().getDisplay().asyncExec(myViewerRefreshRunnable);
}
}
/**
* @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;
URI fileURI = URI.createPlatformResourceURI(file.getFullPath().toString(), true);
Resource resource = myEditingDomain.getResourceSet().getResource(fileURI, true);
ArrayList<ShortcutNavigatorItem> result = new ArrayList<ShortcutNavigatorItem>();
ArrayList<View> topViews = new ArrayList<View>(resource.getContents().size());
for (EObject o : resource.getContents()) {
if (o instanceof View) {
topViews.add((View) o);
}
}
result.addAll(createNavigatorItems(selectViewsByType(topViews, DiagramEditPart.MODEL_ID), file, false));
return result.toArray();
}
if (parentElement instanceof ShortcutNavigatorGroup) {
ShortcutNavigatorGroup group = (ShortcutNavigatorGroup) parentElement;
return group.getChildren();
}
if (parentElement instanceof ShortcutNavigatorItem) {
ShortcutNavigatorItem navigatorItem = (ShortcutNavigatorItem) parentElement;
if (navigatorItem.isLeaf() || !isOwnView(navigatorItem.getView())) {
return EMPTY_ARRAY;
}
return getViewChildren(navigatorItem.getView(), parentElement);
}
/*
* Due to plugin.xml restrictions this code will be called only for views representing
* shortcuts to this diagram elements created on other diagrams.
*/
if (parentElement instanceof IAdaptable) {
View view = (View) ((IAdaptable) parentElement).getAdapter(View.class);
if (view != null) {
return getViewChildren(view, parentElement);
}
}
return EMPTY_ARRAY;
}
/**
* @generated
*/
private Object[] getViewChildren(View view, Object parentElement) {
switch (ShortcutVisualIDRegistry.getVisualID(view)) {
case DiagramEditPart.VISUAL_ID: {
LinkedList<ShortcutAbstractNavigatorItem> result = new LinkedList<ShortcutAbstractNavigatorItem>();
result.addAll(getForeignShortcuts((Diagram) view, parentElement));
Diagram sv = (Diagram) view;
ShortcutNavigatorGroup links = new ShortcutNavigatorGroup(Messages.NavigatorGroupName_Diagram_1000_links, "icons/linksNavigatorGroup.gif", parentElement); //$NON-NLS-1$
Collection<View> connectedViews;
connectedViews = getChildrenByType(Collections.singleton(sv), ShortcutVisualIDRegistry.getType(DiagramNodeEditPart.VISUAL_ID));
result.addAll(createNavigatorItems(connectedViews, parentElement, false));
connectedViews = getDiagramLinksByType(Collections.singleton(sv), ShortcutVisualIDRegistry.getType(DiagramLinkEditPart.VISUAL_ID));
links.addChildren(createNavigatorItems(connectedViews, links, false));
if (!links.isEmpty()) {
result.add(links);
}
return result.toArray();
}
case DiagramNodeEditPart.VISUAL_ID: {
LinkedList<ShortcutAbstractNavigatorItem> result = new LinkedList<ShortcutAbstractNavigatorItem>();
Node sv = (Node) view;
ShortcutNavigatorGroup incominglinks = new ShortcutNavigatorGroup(Messages.NavigatorGroupName_DiagramNode_2001_incominglinks, "icons/incomingLinksNavigatorGroup.gif", parentElement); //$NON-NLS-1$
ShortcutNavigatorGroup outgoinglinks = new ShortcutNavigatorGroup(Messages.NavigatorGroupName_DiagramNode_2001_outgoinglinks, "icons/outgoingLinksNavigatorGroup.gif", parentElement); //$NON-NLS-1$
Collection<View> connectedViews;
connectedViews = getIncomingLinksByType(Collections.singleton(sv), ShortcutVisualIDRegistry.getType(DiagramLinkEditPart.VISUAL_ID));
incominglinks.addChildren(createNavigatorItems(connectedViews, incominglinks, true));
connectedViews = getOutgoingLinksByType(Collections.singleton(sv), ShortcutVisualIDRegistry.getType(DiagramLinkEditPart.VISUAL_ID));
outgoinglinks.addChildren(createNavigatorItems(connectedViews, outgoinglinks, true));
if (!incominglinks.isEmpty()) {
result.add(incominglinks);
}
if (!outgoinglinks.isEmpty()) {
result.add(outgoinglinks);
}
return result.toArray();
}
case DiagramLinkEditPart.VISUAL_ID: {
LinkedList<ShortcutAbstractNavigatorItem> result = new LinkedList<ShortcutAbstractNavigatorItem>();
Edge sv = (Edge) view;
ShortcutNavigatorGroup target = new ShortcutNavigatorGroup(Messages.NavigatorGroupName_DiagramLink_4001_target, "icons/linkTargetNavigatorGroup.gif", parentElement); //$NON-NLS-1$
ShortcutNavigatorGroup source = new ShortcutNavigatorGroup(Messages.NavigatorGroupName_DiagramLink_4001_source, "icons/linkSourceNavigatorGroup.gif", parentElement); //$NON-NLS-1$
Collection<View> connectedViews;
connectedViews = getLinksTargetByType(Collections.singleton(sv), ShortcutVisualIDRegistry.getType(DiagramNodeEditPart.VISUAL_ID));
target.addChildren(createNavigatorItems(connectedViews, target, true));
connectedViews = getLinksSourceByType(Collections.singleton(sv), ShortcutVisualIDRegistry.getType(DiagramNodeEditPart.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<View> getLinksSourceByType(Collection<Edge> edges, String type) {
LinkedList<View> result = new LinkedList<View>();
for (Edge nextEdge : edges) {
View nextEdgeSource = nextEdge.getSource();
if (type.equals(nextEdgeSource.getType()) && isOwnView(nextEdgeSource)) {
result.add(nextEdgeSource);
}
}
return result;
}
/**
* @generated
*/
private Collection<View> getLinksTargetByType(Collection<Edge> edges, String type) {
LinkedList<View> result = new LinkedList<View>();
for (Edge nextEdge : edges) {
View nextEdgeTarget = nextEdge.getTarget();
if (type.equals(nextEdgeTarget.getType()) && isOwnView(nextEdgeTarget)) {
result.add(nextEdgeTarget);
}
}
return result;
}
/**
* @generated
*/
private Collection<View> getOutgoingLinksByType(Collection<? extends View> nodes, String type) {
LinkedList<View> result = new LinkedList<View>();
for (View nextNode : nodes) {
result.addAll(selectViewsByType(nextNode.getSourceEdges(), type));
}
return result;
}
/**
* @generated
*/
private Collection<View> getIncomingLinksByType(Collection<? extends View> nodes, String type) {
LinkedList<View> result = new LinkedList<View>();
for (View nextNode : nodes) {
result.addAll(selectViewsByType(nextNode.getTargetEdges(), type));
}
return result;
}
/**
* @generated
*/
private Collection<View> getChildrenByType(Collection<? extends View> nodes, String type) {
LinkedList<View> result = new LinkedList<View>();
for (View nextNode : nodes) {
result.addAll(selectViewsByType(nextNode.getChildren(), type));
}
return result;
}
/**
* @generated
*/
private Collection<View> getDiagramLinksByType(Collection<Diagram> diagrams, String type) {
ArrayList<View> result = new ArrayList<View>();
for (Diagram nextDiagram : diagrams) {
result.addAll(selectViewsByType(nextDiagram.getEdges(), type));
}
return result;
}
// TODO refactor as static method
/**
* @generated
*/
private Collection<View> selectViewsByType(Collection<View> views, String type) {
ArrayList<View> result = new ArrayList<View>();
for (View nextView : views) {
if (type.equals(nextView.getType()) && isOwnView(nextView)) {
result.add(nextView);
}
}
return result;
}
/**
* @generated
*/
private boolean isOwnView(View view) {
return DiagramEditPart.MODEL_ID.equals(ShortcutVisualIDRegistry.getModelID(view));
}
/**
* @generated
*/
private Collection<ShortcutNavigatorItem> createNavigatorItems(Collection<View> views, Object parent, boolean isLeafs) {
ArrayList<ShortcutNavigatorItem> result = new ArrayList<ShortcutNavigatorItem>(views.size());
for (View nextView : views) {
result.add(new ShortcutNavigatorItem(nextView, parent, isLeafs));
}
return result;
}
/**
* @generated
*/
private Collection<ShortcutNavigatorItem> getForeignShortcuts(Diagram diagram, Object parent) {
LinkedList<View> result = new LinkedList<View>();
for (Iterator<View> it = diagram.getChildren().iterator(); it.hasNext();) {
View nextView = it.next();
if (!isOwnView(nextView) && nextView.getEAnnotation("Shortcut") != null) { //$NON-NLS-1$
result.add(nextView);
}
}
return createNavigatorItems(result, parent, false);
}
/**
* @generated
*/
public Object getParent(Object element) {
if (element instanceof ShortcutAbstractNavigatorItem) {
ShortcutAbstractNavigatorItem abstractNavigatorItem = (ShortcutAbstractNavigatorItem) element;
return abstractNavigatorItem.getParent();
}
return null;
}
/**
* @generated
*/
public boolean hasChildren(Object element) {
return element instanceof IFile || getChildren(element).length > 0;
}
}
