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EXTLibraryEditor.java
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EXTLibraryEditor.java
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/**
* <copyright>
*
* Copyright (c) 2005-2006 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 - Initial API and implementation
*
* </copyright>
*
* $Id: EXTLibraryEditor.java,v 1.19 2010/02/04 20:56:29 emerks Exp $
*/
package org.eclipse.emf.parsley.examples.library.presentation;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.EventObject;
import java.util.HashMap;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IMarker;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.IResourceChangeEvent;
import org.eclipse.core.resources.IResourceChangeListener;
import org.eclipse.core.resources.IResourceDelta;
import org.eclipse.core.resources.IResourceDeltaVisitor;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.emf.common.command.BasicCommandStack;
import org.eclipse.emf.common.command.Command;
import org.eclipse.emf.common.command.CommandStack;
import org.eclipse.emf.common.command.CommandStackListener;
import org.eclipse.emf.common.notify.AdapterFactory;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.common.ui.MarkerHelper;
import org.eclipse.emf.common.ui.ViewerPane;
import org.eclipse.emf.common.ui.editor.ProblemEditorPart;
import org.eclipse.emf.common.ui.viewer.IViewerProvider;
import org.eclipse.emf.common.util.BasicDiagnostic;
import org.eclipse.emf.common.util.Diagnostic;
import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.emf.ecore.resource.ResourceSet;
import org.eclipse.emf.ecore.util.EContentAdapter;
import org.eclipse.emf.ecore.util.EcoreUtil;
import org.eclipse.emf.edit.domain.AdapterFactoryEditingDomain;
import org.eclipse.emf.edit.domain.EditingDomain;
import org.eclipse.emf.edit.domain.IEditingDomainProvider;
import org.eclipse.emf.edit.provider.AdapterFactoryItemDelegator;
import org.eclipse.emf.edit.provider.ComposedAdapterFactory;
import org.eclipse.emf.edit.provider.ReflectiveItemProviderAdapterFactory;
import org.eclipse.emf.edit.provider.resource.ResourceItemProviderAdapterFactory;
import org.eclipse.emf.edit.ui.action.EditingDomainActionBarContributor;
import org.eclipse.emf.edit.ui.celleditor.AdapterFactoryTreeEditor;
import org.eclipse.emf.edit.ui.dnd.EditingDomainViewerDropAdapter;
import org.eclipse.emf.edit.ui.dnd.LocalTransfer;
import org.eclipse.emf.edit.ui.dnd.ViewerDragAdapter;
import org.eclipse.emf.edit.ui.provider.AdapterFactoryContentProvider;
import org.eclipse.emf.edit.ui.provider.AdapterFactoryLabelProvider;
import org.eclipse.emf.edit.ui.provider.UnwrappingSelectionProvider;
import org.eclipse.emf.edit.ui.util.EditUIMarkerHelper;
import org.eclipse.emf.edit.ui.util.EditUIUtil;
import org.eclipse.emf.edit.ui.view.ExtendedPropertySheetPage;
import org.eclipse.emf.parsley.examples.library.provider.EXTLibraryItemProviderAdapterFactory;
import org.eclipse.jface.action.IMenuListener;
import org.eclipse.jface.action.IMenuManager;
import org.eclipse.jface.action.IStatusLineManager;
import org.eclipse.jface.action.IToolBarManager;
import org.eclipse.jface.action.MenuManager;
import org.eclipse.jface.action.Separator;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.dialogs.ProgressMonitorDialog;
import org.eclipse.jface.util.LocalSelectionTransfer;
import org.eclipse.jface.viewers.ColumnWeightData;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.ISelectionProvider;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.ListViewer;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jface.viewers.StructuredViewer;
import org.eclipse.jface.viewers.TableLayout;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.CTabFolder;
import org.eclipse.swt.dnd.DND;
import org.eclipse.swt.dnd.FileTransfer;
import org.eclipse.swt.dnd.Transfer;
import org.eclipse.swt.events.ControlAdapter;
import org.eclipse.swt.events.ControlEvent;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableColumn;
import org.eclipse.swt.widgets.Tree;
import org.eclipse.swt.widgets.TreeColumn;
import org.eclipse.ui.IActionBars;
import org.eclipse.ui.IEditorInput;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.IEditorSite;
import org.eclipse.ui.IPartListener;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.actions.WorkspaceModifyOperation;
import org.eclipse.ui.dialogs.SaveAsDialog;
import org.eclipse.ui.ide.IGotoMarker;
import org.eclipse.ui.part.FileEditorInput;
import org.eclipse.ui.part.MultiPageEditorPart;
import org.eclipse.ui.views.contentoutline.ContentOutline;
import org.eclipse.ui.views.contentoutline.ContentOutlinePage;
import org.eclipse.ui.views.contentoutline.IContentOutlinePage;
import org.eclipse.ui.views.properties.IPropertySheetPage;
import org.eclipse.ui.views.properties.PropertySheet;
import org.eclipse.ui.views.properties.PropertySheetPage;
/**
* This is an example of a EXTLibrary model editor.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public class EXTLibraryEditor extends MultiPageEditorPart
implements
IEditingDomainProvider,
ISelectionProvider,
IMenuListener,
IViewerProvider,
IGotoMarker
{
/**
* This keeps track of the editing domain that is used to track all changes to the model.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected AdapterFactoryEditingDomain editingDomain;
/**
* This is the one adapter factory used for providing views of the model.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected ComposedAdapterFactory adapterFactory;
/**
* This is the content outline page.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected IContentOutlinePage contentOutlinePage;
/**
* This is a kludge...
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected IStatusLineManager contentOutlineStatusLineManager;
/**
* This is the content outline page's viewer.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected TreeViewer contentOutlineViewer;
/**
* This is the property sheet page.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected List<PropertySheetPage> propertySheetPages = new ArrayList<PropertySheetPage>();
/**
* This is the viewer that shadows the selection in the content outline.
* The parent relation must be correctly defined for this to work.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected TreeViewer selectionViewer;
/**
* This inverts the roll of parent and child in the content provider and show parents as a tree.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected TreeViewer parentViewer;
/**
* This shows how a tree view works.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected TreeViewer treeViewer;
/**
* This shows how a list view works.
* A list viewer doesn't support icons.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected ListViewer listViewer;
/**
* This shows how a table view works.
* A table can be used as a list with icons.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected TableViewer tableViewer;
/**
* This shows how a tree view with columns works.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected TreeViewer treeViewerWithColumns;
/**
* This keeps track of the active viewer pane, in the book.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected ViewerPane currentViewerPane;
/**
* This keeps track of the active content viewer, which may be either one of the viewers in the pages or the content outline viewer.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected Viewer currentViewer;
/**
* This listens to which ever viewer is active.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected ISelectionChangedListener selectionChangedListener;
/**
* This keeps track of all the {@link org.eclipse.jface.viewers.ISelectionChangedListener}s that are listening to this editor.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected Collection<ISelectionChangedListener> selectionChangedListeners = new ArrayList<ISelectionChangedListener>();
/**
* This keeps track of the selection of the editor as a whole.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected ISelection editorSelection = StructuredSelection.EMPTY;
/**
* The MarkerHelper is responsible for creating workspace resource markers presented
* in Eclipse's Problems View.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected MarkerHelper markerHelper = new EditUIMarkerHelper();
/**
* This listens for when the outline becomes active
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected IPartListener partListener =
new IPartListener() {
public void partActivated(IWorkbenchPart p) {
if (p instanceof ContentOutline) {
if (((ContentOutline)p).getCurrentPage() == contentOutlinePage) {
getActionBarContributor().setActiveEditor(EXTLibraryEditor.this);
setCurrentViewer(contentOutlineViewer);
}
}
else if (p instanceof PropertySheet) {
if (propertySheetPages.contains(((PropertySheet)p).getCurrentPage())) {
getActionBarContributor().setActiveEditor(EXTLibraryEditor.this);
handleActivate();
}
}
else if (p == EXTLibraryEditor.this) {
handleActivate();
}
}
public void partBroughtToTop(IWorkbenchPart p) {
// Ignore.
}
public void partClosed(IWorkbenchPart p) {
// Ignore.
}
public void partDeactivated(IWorkbenchPart p) {
// Ignore.
}
public void partOpened(IWorkbenchPart p) {
// Ignore.
}
};
/**
* Resources that have been removed since last activation.
* @generated
*/
protected Collection<Resource> removedResources = new ArrayList<Resource>();
/**
* Resources that have been changed since last activation.
* @generated
*/
protected Collection<Resource> changedResources = new ArrayList<Resource>();
/**
* Resources that have been saved.
* @generated
*/
protected Collection<Resource> savedResources = new ArrayList<Resource>();
/**
* Map to store the diagnostic associated with a resource.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected Map<Resource, Diagnostic> resourceToDiagnosticMap = new LinkedHashMap<Resource, Diagnostic>();
/**
* Controls whether the problem indication should be updated.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected boolean updateProblemIndication = true;
/**
* Adapter used to update the problem indication when resources are demanded loaded.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected EContentAdapter problemIndicationAdapter =
new EContentAdapter() {
@Override
public void notifyChanged(Notification notification) {
if (notification.getNotifier() instanceof Resource) {
switch (notification.getFeatureID(Resource.class)) {
case Resource.RESOURCE__IS_LOADED:
case Resource.RESOURCE__ERRORS:
case Resource.RESOURCE__WARNINGS: {
Resource resource = (Resource)notification.getNotifier();
Diagnostic diagnostic = analyzeResourceProblems(resource, null);
if (diagnostic.getSeverity() != Diagnostic.OK) {
resourceToDiagnosticMap.put(resource, diagnostic);
}
else {
resourceToDiagnosticMap.remove(resource);
}
if (updateProblemIndication) {
getSite().getShell().getDisplay().asyncExec
(new Runnable() {
public void run() {
updateProblemIndication();
}
});
}
break;
}
}
}
else {
super.notifyChanged(notification);
}
}
@Override
protected void setTarget(Resource target) {
basicSetTarget(target);
}
@Override
protected void unsetTarget(Resource target) {
basicUnsetTarget(target);
resourceToDiagnosticMap.remove(target);
if (updateProblemIndication) {
getSite().getShell().getDisplay().asyncExec
(new Runnable() {
public void run() {
updateProblemIndication();
}
});
}
}
};
/**
* This listens for workspace changes.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected IResourceChangeListener resourceChangeListener =
new IResourceChangeListener() {
public void resourceChanged(IResourceChangeEvent event) {
IResourceDelta delta = event.getDelta();
try {
class ResourceDeltaVisitor implements IResourceDeltaVisitor {
protected ResourceSet resourceSet = editingDomain.getResourceSet();
protected Collection<Resource> changedResources = new ArrayList<Resource>();
protected Collection<Resource> removedResources = new ArrayList<Resource>();
public boolean visit(IResourceDelta delta) {
if (delta.getResource().getType() == IResource.FILE) {
if (delta.getKind() == IResourceDelta.REMOVED ||
delta.getKind() == IResourceDelta.CHANGED && delta.getFlags() != IResourceDelta.MARKERS) {
Resource resource = resourceSet.getResource(URI.createPlatformResourceURI(delta.getFullPath().toString(), true), false);
if (resource != null) {
if (delta.getKind() == IResourceDelta.REMOVED) {
removedResources.add(resource);
}
else if (!savedResources.remove(resource)) {
changedResources.add(resource);
}
}
}
return false;
}
return true;
}
public Collection<Resource> getChangedResources() {
return changedResources;
}
public Collection<Resource> getRemovedResources() {
return removedResources;
}
}
final ResourceDeltaVisitor visitor = new ResourceDeltaVisitor();
delta.accept(visitor);
if (!visitor.getRemovedResources().isEmpty()) {
getSite().getShell().getDisplay().asyncExec
(new Runnable() {
public void run() {
removedResources.addAll(visitor.getRemovedResources());
if (!isDirty()) {
getSite().getPage().closeEditor(EXTLibraryEditor.this, false);
}
}
});
}
if (!visitor.getChangedResources().isEmpty()) {
getSite().getShell().getDisplay().asyncExec
(new Runnable() {
public void run() {
changedResources.addAll(visitor.getChangedResources());
if (getSite().getPage().getActiveEditor() == EXTLibraryEditor.this) {
handleActivate();
}
}
});
}
}
catch (CoreException exception) {
EXTLibraryEditorPlugin.INSTANCE.log(exception);
}
}
};
/**
* Handles activation of the editor or it's associated views.
* @generated
*/
protected void handleActivate()
{
// Recompute the read only state.
//
if (editingDomain.getResourceToReadOnlyMap() != null) {
editingDomain.getResourceToReadOnlyMap().clear();
// Refresh any actions that may become enabled or disabled.
//
setSelection(getSelection());
}
if (!removedResources.isEmpty()) {
if (handleDirtyConflict()) {
getSite().getPage().closeEditor(EXTLibraryEditor.this, false);
}
else {
removedResources.clear();
changedResources.clear();
savedResources.clear();
}
}
else if (!changedResources.isEmpty()) {
changedResources.removeAll(savedResources);
handleChangedResources();
changedResources.clear();
savedResources.clear();
}
}
/**
* Handles what to do with changed resources on activation.
* @generated
*/
protected void handleChangedResources()
{
if (!changedResources.isEmpty() && (!isDirty() || handleDirtyConflict())) {
if (isDirty()) {
changedResources.addAll(editingDomain.getResourceSet().getResources());
}
editingDomain.getCommandStack().flush();
updateProblemIndication = false;
for (Resource resource : changedResources) {
if (resource.isLoaded()) {
resource.unload();
try {
resource.load(Collections.EMPTY_MAP);
}
catch (IOException exception) {
if (!resourceToDiagnosticMap.containsKey(resource)) {
resourceToDiagnosticMap.put(resource, analyzeResourceProblems(resource, exception));
}
}
}
}
if (AdapterFactoryEditingDomain.isStale(editorSelection)) {
setSelection(StructuredSelection.EMPTY);
}
updateProblemIndication = true;
updateProblemIndication();
}
}
/**
* Updates the problems indication with the information described in the specified diagnostic.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected void updateProblemIndication()
{
if (updateProblemIndication) {
BasicDiagnostic diagnostic =
new BasicDiagnostic
(Diagnostic.OK,
"org.eclipse.emf.parsley.examples.library.editor", //$NON-NLS-1$
0,
null,
new Object [] { editingDomain.getResourceSet() });
for (Diagnostic childDiagnostic : resourceToDiagnosticMap.values()) {
if (childDiagnostic.getSeverity() != Diagnostic.OK) {
diagnostic.add(childDiagnostic);
}
}
int lastEditorPage = getPageCount() - 1;
if (lastEditorPage >= 0 && getEditor(lastEditorPage) instanceof ProblemEditorPart) {
((ProblemEditorPart)getEditor(lastEditorPage)).setDiagnostic(diagnostic);
if (diagnostic.getSeverity() != Diagnostic.OK) {
setActivePage(lastEditorPage);
}
}
else if (diagnostic.getSeverity() != Diagnostic.OK) {
ProblemEditorPart problemEditorPart = new ProblemEditorPart();
problemEditorPart.setDiagnostic(diagnostic);
problemEditorPart.setMarkerHelper(markerHelper);
try {
addPage(++lastEditorPage, problemEditorPart, getEditorInput());
setPageText(lastEditorPage, problemEditorPart.getPartName());
setActivePage(lastEditorPage);
showTabs();
}
catch (PartInitException exception) {
EXTLibraryEditorPlugin.INSTANCE.log(exception);
}
}
if (markerHelper.hasMarkers(editingDomain.getResourceSet())) {
markerHelper.deleteMarkers(editingDomain.getResourceSet());
if (diagnostic.getSeverity() != Diagnostic.OK) {
try {
markerHelper.createMarkers(diagnostic);
}
catch (CoreException exception) {
EXTLibraryEditorPlugin.INSTANCE.log(exception);
}
}
}
}
}
/**
* Shows a dialog that asks if conflicting changes should be discarded.
* @generated
*/
protected boolean handleDirtyConflict()
{
return
MessageDialog.openQuestion
(getSite().getShell(),
getString("_UI_FileConflict_label"), //$NON-NLS-1$
getString("_WARN_FileConflict")); //$NON-NLS-1$
}
/**
* This creates a model editor.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public EXTLibraryEditor()
{
super();
initializeEditingDomain();
}
/**
* This sets up the editing domain for the model editor.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected void initializeEditingDomain()
{
// Create an adapter factory that yields item providers.
//
adapterFactory = new ComposedAdapterFactory(ComposedAdapterFactory.Descriptor.Registry.INSTANCE);
adapterFactory.addAdapterFactory(new ResourceItemProviderAdapterFactory());
adapterFactory.addAdapterFactory(new EXTLibraryItemProviderAdapterFactory());
adapterFactory.addAdapterFactory(new ReflectiveItemProviderAdapterFactory());
// Create the command stack that will notify this editor as commands are executed.
//
BasicCommandStack commandStack = new BasicCommandStack();
// Add a listener to set the most recent command's affected objects to be the selection of the viewer with focus.
//
commandStack.addCommandStackListener
(new CommandStackListener() {
public void commandStackChanged(final EventObject event) {
getContainer().getDisplay().asyncExec
(new Runnable() {
public void run() {
firePropertyChange(IEditorPart.PROP_DIRTY);
// Try to select the affected objects.
//
Command mostRecentCommand = ((CommandStack)event.getSource()).getMostRecentCommand();
if (mostRecentCommand != null) {
setSelectionToViewer(mostRecentCommand.getAffectedObjects());
}
for (Iterator<PropertySheetPage> i = propertySheetPages.iterator(); i.hasNext(); ) {
PropertySheetPage propertySheetPage = i.next();
if (propertySheetPage.getControl().isDisposed()) {
i.remove();
}
else {
propertySheetPage.refresh();
}
}
}
});
}
});
// Create the editing domain with a special command stack.
//
editingDomain = new AdapterFactoryEditingDomain(adapterFactory, commandStack, new HashMap<Resource, Boolean>());
}
/**
* This is here for the listener to be able to call it.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
@Override
protected void firePropertyChange(int action)
{
super.firePropertyChange(action);
}
/**
* This sets the selection into whichever viewer is active.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public void setSelectionToViewer(Collection<?> collection)
{
final Collection<?> theSelection = collection;
// Make sure it's okay.
//
if (theSelection != null && !theSelection.isEmpty()) {
Runnable runnable =
new Runnable() {
public void run() {
// Try to select the items in the current content viewer of the editor.
//
if (currentViewer != null) {
currentViewer.setSelection(new StructuredSelection(theSelection.toArray()), true);
}
}
};
getSite().getShell().getDisplay().asyncExec(runnable);
}
}
/**
* This returns the editing domain as required by the {@link IEditingDomainProvider} interface.
* This is important for implementing the static methods of {@link AdapterFactoryEditingDomain}
* and for supporting {@link org.eclipse.emf.edit.ui.action.CommandAction}.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public EditingDomain getEditingDomain()
{
return editingDomain;
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public class ReverseAdapterFactoryContentProvider extends AdapterFactoryContentProvider
{
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public ReverseAdapterFactoryContentProvider(AdapterFactory adapterFactory)
{
super(adapterFactory);
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
@Override
public Object [] getElements(Object object)
{
Object parent = super.getParent(object);
return (parent == null ? Collections.EMPTY_SET : Collections.singleton(parent)).toArray();
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
@Override
public Object [] getChildren(Object object)
{
Object parent = super.getParent(object);
return (parent == null ? Collections.EMPTY_SET : Collections.singleton(parent)).toArray();
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
@Override
public boolean hasChildren(Object object)
{
Object parent = super.getParent(object);
return parent != null;
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
@Override
public Object getParent(Object object)
{
return null;
}
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public void setCurrentViewerPane(ViewerPane viewerPane)
{
if (currentViewerPane != viewerPane) {
if (currentViewerPane != null) {
currentViewerPane.showFocus(false);
}
currentViewerPane = viewerPane;
}
setCurrentViewer(currentViewerPane.getViewer());
}
/**
* This makes sure that one content viewer, either for the current page or the outline view, if it has focus,
* is the current one.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public void setCurrentViewer(Viewer viewer)
{
// If it is changing...
//
if (currentViewer != viewer) {
if (selectionChangedListener == null) {
// Create the listener on demand.
//
selectionChangedListener =
new ISelectionChangedListener() {
// This just notifies those things that are affected by the section.
//
public void selectionChanged(SelectionChangedEvent selectionChangedEvent) {
setSelection(selectionChangedEvent.getSelection());
}
};
}
// Stop listening to the old one.
//
if (currentViewer != null) {
currentViewer.removeSelectionChangedListener(selectionChangedListener);
}
// Start listening to the new one.
//
if (viewer != null) {
viewer.addSelectionChangedListener(selectionChangedListener);
}
// Remember it.
//
currentViewer = viewer;
// Set the editors selection based on the current viewer's selection.
//
setSelection(currentViewer == null ? StructuredSelection.EMPTY : currentViewer.getSelection());
}
}
/**
* This returns the viewer as required by the {@link IViewerProvider} interface.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public Viewer getViewer()
{
return currentViewer;
}
/**
* This creates a context menu for the viewer and adds a listener as well registering the menu for extension.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected void createContextMenuFor(StructuredViewer viewer)
{
MenuManager contextMenu = new MenuManager("#PopUp"); //$NON-NLS-1$
contextMenu.add(new Separator("additions")); //$NON-NLS-1$
contextMenu.setRemoveAllWhenShown(true);
contextMenu.addMenuListener(this);
Menu menu= contextMenu.createContextMenu(viewer.getControl());
viewer.getControl().setMenu(menu);
getSite().registerContextMenu(contextMenu, new UnwrappingSelectionProvider(viewer));
int dndOperations = DND.DROP_COPY | DND.DROP_MOVE | DND.DROP_LINK;
Transfer[] transfers = new Transfer[] { LocalTransfer.getInstance(), LocalSelectionTransfer.getTransfer(), FileTransfer.getInstance() };
viewer.addDragSupport(dndOperations, transfers, new ViewerDragAdapter(viewer));
viewer.addDropSupport(dndOperations, transfers, new EditingDomainViewerDropAdapter(editingDomain, viewer));
}
/**
* This is the method called to load a resource into the editing domain's resource set based on the editor's input.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public void createModel()
{
URI resourceURI = EditUIUtil.getURI(getEditorInput());
Exception exception = null;
Resource resource = null;
try {
// Load the resource through the editing domain.
//
resource = editingDomain.getResourceSet().getResource(resourceURI, true);
}
catch (Exception e) {
exception = e;
resource = editingDomain.getResourceSet().getResource(resourceURI, false);
}
Diagnostic diagnostic = analyzeResourceProblems(resource, exception);
if (diagnostic.getSeverity() != Diagnostic.OK) {
resourceToDiagnosticMap.put(resource, analyzeResourceProblems(resource, exception));
}
editingDomain.getResourceSet().eAdapters().add(problemIndicationAdapter);
}
/**
* Returns a diagnostic describing the errors and warnings listed in the resource
* and the specified exception (if any).
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public Diagnostic analyzeResourceProblems(Resource resource, Exception exception)
{
boolean hasErrors = !resource.getErrors().isEmpty();
if (hasErrors || !resource.getWarnings().isEmpty()) {
BasicDiagnostic basicDiagnostic =
new BasicDiagnostic
(hasErrors ? Diagnostic.ERROR : Diagnostic.WARNING,
"org.eclipse.emf.parsley.examples.library.editor", //$NON-NLS-1$
0,
getString("_UI_CreateModelError_message", resource.getURI()), //$NON-NLS-1$
new Object [] { exception == null ? (Object)resource : exception });
basicDiagnostic.merge(EcoreUtil.computeDiagnostic(resource, true));
return basicDiagnostic;
}
else if (exception != null) {
return
new BasicDiagnostic
(Diagnostic.ERROR,
"org.eclipse.emf.parsley.examples.library.editor", //$NON-NLS-1$
0,
getString("_UI_CreateModelError_message", resource.getURI()), //$NON-NLS-1$
new Object[] { exception });
}
else {
return Diagnostic.OK_INSTANCE;
}
}
/**
* This is the method used by the framework to install your own controls.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/