com.symbian.driver.presentation.DriverEditor.java Source code

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/*
* Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).
* All rights reserved.
* This component and the accompanying materials are made available
* under the terms of "Eclipse Public License v1.0"
* which accompanies this distribution, and is available
* at the URL "http://www.eclipse.org/legal/epl-v10.html".
*
* Initial Contributors:
* Nokia Corporation - initial contribution.
*
* Contributors:
*
* Description: 
*
*/

package com.symbian.driver.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.HashSet;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;

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.viewer.IViewerProvider;
import org.eclipse.emf.common.util.BasicDiagnostic;
import org.eclipse.emf.common.util.Diagnostic;
import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EValidator;
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.ecore.util.FeatureMap;
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.IWrapperItemProvider;
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.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.resource.ImageDescriptor;
import org.eclipse.jface.viewers.DecoratingLabelProvider;
import org.eclipse.jface.viewers.ILabelDecorator;
import org.eclipse.jface.viewers.ILabelProviderListener;
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.TableViewer;
import org.eclipse.jface.viewers.TreePath;
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.Transfer;
import org.eclipse.swt.events.ControlAdapter;
import org.eclipse.swt.events.ControlEvent;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.ImageData;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Tree;
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.PlatformUI;
import org.eclipse.ui.actions.WorkspaceModifyOperation;
import org.eclipse.ui.dialogs.SaveAsDialog;
import org.eclipse.ui.ide.IGotoMarker;
import org.eclipse.ui.internal.UIPlugin;
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;

import com.symbian.driver.provider.DriverItemProviderAdapterFactory;
import com.symbian.driver.report.actions.ValidationActionWithoutProgress;
import com.symbian.driver.util.DriverResourceConvertor;
import com.symbian.driver.utils.EmfComparer;

/**
 * This is an example of a Driver model editor.
 * <!-- begin-user-doc -->
 * <!-- end-user-doc -->
 * @generated
 */
public class DriverEditor 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;

    /**
     * 
     * <!-- 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 PropertySheetPage 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();

    /**
     * Auto validate when resource has changed. 
     */
    protected ValidationActionWithoutProgress validationAction = new ValidationActionWithoutProgress();

    /**
     * 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(DriverEditor.this);

                    setCurrentViewer(contentOutlineViewer);
                }
            } else if (p instanceof PropertySheet) {
                if (((PropertySheet) p).getCurrentPage() == propertySheetPage) {
                    getActionBarContributor().setActiveEditor(DriverEditor.this);
                    handleActivate();
                }
            } else if (p == DriverEditor.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.
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    protected Collection<Resource> removedResources = new ArrayList<Resource>();

    /**
     * Resources that have been changed since last activation.
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    protected Collection<Resource> changedResources = new ArrayList<Resource>();

    /**
     * Resources that have been saved.
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @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 (true) {
                        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);
        }
    };

    /**
     * This listens for workspace changes.
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    protected IResourceChangeListener resourceChangeListener = new IResourceChangeListener() {
        public void resourceChanged(IResourceChangeEvent event) {
            // Only listening to these.
            // if (event.getType() == IResourceDelta.POST_CHANGE)
            {
                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.getFlags() != IResourceDelta.MARKERS
                                    && delta.getResource().getType() == IResource.FILE) {
                                if ((delta.getKind() & (IResourceDelta.CHANGED | IResourceDelta.REMOVED)) != 0) {
                                    Resource resource = resourceSet
                                            .getResource(URI.createURI(delta.getFullPath().toString()), false);
                                    if (resource != null) {
                                        if ((delta.getKind() & IResourceDelta.REMOVED) != 0) {
                                            removedResources.add(resource);
                                        } else if (!savedResources.remove(resource)) {
                                            changedResources.add(resource);
                                        }
                                    }
                                }
                            }

                            return true;
                        }

                        public Collection<Resource> getChangedResources() {
                            return changedResources;
                        }

                        public Collection<Resource> getRemovedResources() {
                            return removedResources;
                        }
                    }

                    ResourceDeltaVisitor visitor = new ResourceDeltaVisitor();
                    delta.accept(visitor);

                    if (!visitor.getRemovedResources().isEmpty()) {
                        removedResources.addAll(visitor.getRemovedResources());
                        if (!isDirty()) {
                            getSite().getShell().getDisplay().asyncExec(new Runnable() {
                                public void run() {
                                    getSite().getPage().closeEditor(DriverEditor.this, false);
                                    DriverEditor.this.dispose();
                                }
                            });
                        }
                    }

                    if (!visitor.getChangedResources().isEmpty()) {
                        changedResources.addAll(visitor.getChangedResources());
                        if (getSite().getPage().getActiveEditor() == DriverEditor.this) {
                            getSite().getShell().getDisplay().asyncExec(new Runnable() {
                                public void run() {
                                    handleActivate();
                                }
                            });
                        }
                    }
                } catch (CoreException exception) {
                    DriverEditorPlugin.INSTANCE.log(exception);
                }
            }
        }
    };

    /**
     * Handles activation of the editor or it's associated views.
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @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(DriverEditor.this, false);
                DriverEditor.this.dispose();
            } 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.
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated NOT
     */
    protected void handleChangedResources() {
        if (!changedResources.isEmpty() && (!isDirty() || handleDirtyConflict())) {
            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));
                        }
                    }
                }
            }
            updateProblemIndication = true;
            updateProblemIndication();

            //set to use structure based comparer for restore expanded path
            selectionViewer.setComparer(new EmfComparer());

            TreePath[] tree = selectionViewer.getExpandedTreePaths();
            Resource res = editingDomain.getResourceSet().getResources().get(0);
            if (res != null) {
                EList<EObject> list = res.getContents();
                if (list.size() > 0) {
                    selectionViewer.setInput(list.get(0));
                }
            }
            //restore the expanded path if possible
            for (Object elem : tree) {
                selectionViewer.setExpandedState(elem, true);
            }
            selectionViewer.setComparer(null);
        }
    }

    /**
     * Updates the problems indication with the information described in the specified diagnostic.
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated NOT
     */
    protected void updateProblemIndication() {
        //      if (updateProblemIndication) {
        //         BasicDiagnostic diagnostic =
        //            new BasicDiagnostic
        //               (Diagnostic.OK,
        //                "com.symbian.driver.editor",
        //                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) {
        //               DriverEditorPlugin.INSTANCE.log(exception);
        //            }
        //         }
        //         
        //         if (markerHelper.hasMarkers(editingDomain.getResourceSet())) {
        //            markerHelper.deleteMarkers(editingDomain.getResourceSet());
        //            if (diagnostic.getSeverity() != Diagnostic.OK) {
        //               try {
        //                  markerHelper.createMarkers(diagnostic);
        //               }
        //               catch (CoreException exception) {
        //                  DriverEditorPlugin.INSTANCE.log(exception);
        //               }
        //            }
        //         }
        //      }

        if (updateProblemIndication) {
            validate();
            updateProblemIndication = false;
        }
    }

    /**
     * Shows a dialog that asks if conflicting changes should be discarded.
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    protected boolean handleDirtyConflict() {
        return MessageDialog.openQuestion(getSite().getShell(), getString("_UI_FileConflict_label"),
                getString("_WARN_FileConflict"));
    }

    /**
     * This creates a model editor.
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    public DriverEditor() {
        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 DriverItemProviderAdapterFactory());
        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());
                        }
                        if (propertySheetPage != null && !propertySheetPage.getControl().isDisposed()) {
                            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()) {
            // I don't know if this should be run this deferred
            // because we might have to give the editor a chance to process the viewer update events
            // and hence to update the views first.
            //
            //
            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);
                    }
                }
            };
            runnable.run();
        }
    }

    /**
     * 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");
        contextMenu.add(new Separator("additions"));
        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() };
        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 NOT
     */
    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) {
            try {
                DriverResourceConvertor.convertResourceForEditor(resourceURI);

                if (resource != null)
                    editingDomain.getResourceSet().getResources().remove(resource);

                resource = editingDomain.getResourceSet().getResource(resourceURI, true);
            } catch (Exception e1) {
                exception = e1;
                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) {
        if (!resource.getErrors().isEmpty() || !resource.getWarnings().isEmpty()) {
            BasicDiagnostic basicDiagnostic = new BasicDiagnostic(Diagnostic.ERROR, "com.symbian.driver.editor", 0,
                    getString("_UI_CreateModelError_message", resource.getURI()),
                    new Object[] { exception == null ? (Object) resource : exception });
            basicDiagnostic.merge(EcoreUtil.computeDiagnostic(resource, true));
            return basicDiagnostic;
        } else if (exception != null) {
            return new BasicDiagnostic(Diagnostic.ERROR, "com.symbian.driver.editor", 0,
                    getString("_UI_CreateModelError_message", resource.getURI()), 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 NOT
     */
    //   @Override
    public void createPages() {
        // Creates the model from the editor input
        //
        createModel();

        // Only creates the other pages if there is something that can be edited
        //
        if (!getEditingDomain().getResourceSet().getResources().isEmpty()
                && !(getEditingDomain().getResourceSet().getResources().get(0)).getContents().isEmpty()) {
            // Create a page for the selection tree view.
            //
            {
                ViewerPane viewerPane = new ViewerPane(getSite().getPage(), DriverEditor.this) {
                    //                  @Override
                    public Viewer createViewer(Composite composite) {
                        Tree tree = new Tree(composite, SWT.MULTI);
                        TreeViewer newTreeViewer = new TreeViewer(tree);
                        return newTreeViewer;
                    }

                    @Override
                    public void requestActivation() {
                        super.requestActivation();
                        setCurrentViewerPane(this);
                    }

                    @Override
                    protected void createTitleBar() {
                    }
                };
                viewerPane.createControl(getContainer());

                selectionViewer = (TreeViewer) viewerPane.getViewer();
                selectionViewer.setContentProvider(new AdapterFactoryContentProvider(adapterFactory));

                DecoratingLabelProvider decoratingLabelProvider = new DecoratingLabelProvider(
                        new AdapterFactoryLabelProvider(adapterFactory), new ILabelDecorator() {

                            private ImageDescriptor err = UIPlugin.imageDescriptorFromPlugin(DriverEditorPlugin.ID,
                                    "icons/full/obj16/error_co.gif");

                            private Map<Class<?>, Image> imageMap = new HashMap<Class<?>, Image>();

                            public Image decorateImage(Image image, Object obj) {

                                boolean has = hasErrors(obj);
                                if (!has)
                                    return image;

                                if (imageMap.containsKey(obj.getClass())) {
                                    return imageMap.get(obj.getClass());
                                }

                                ImageData imageData = image == null ? null : image.getImageData();
                                int width = imageData == null ? 16 : imageData.width;
                                int height = imageData == null ? 16 : imageData.height;

                                ImageData errData = err.getImageData();
                                int errHeight = errData.height;

                                Image copyImage = new Image(image.getDevice(), width, height);

                                GC gc = new GC(copyImage);
                                if (image != null)
                                    gc.drawImage(image, 0, 0);
                                if (err != null)
                                    gc.drawImage(err.createImage(image.getDevice()), 0, height - errHeight);
                                gc.dispose();

                                imageMap.put(obj.getClass(), copyImage);

                                return copyImage;
                            }

                            public String decorateText(String s, Object obj) {
                                return null;
                            }

                            public void addListener(ILabelProviderListener ilabelproviderlistener) {
                            }

                            public void dispose() {
                                for (Iterator<Map.Entry<Class<?>, Image>> it = imageMap.entrySet().iterator(); it
                                        .hasNext();) {
                                    Map.Entry<Class<?>, Image> entry = it.next();
                                    Image img = entry.getValue();
                                    if (img != null && !img.isDisposed()) {
                                        img.dispose();
                                        it.remove();
                                    }
                                }
                            }

                            public boolean isLabelProperty(Object obj, String s) {
                                return false;
                            }

                            public void removeListener(ILabelProviderListener ilabelproviderlistener) {
                            }
                        });
                selectionViewer.setLabelProvider(decoratingLabelProvider);

                //            selectionViewer.setLabelProvider(new AdapterFactoryLabelProvider(adapterFactory));
                selectionViewer.setInput(editingDomain.getResourceSet().getResources().get(0).getContents().get(0));
                selectionViewer.setSelection(
                        new StructuredSelection(editingDomain.getResourceSet().getResources().get(0)), true);

                new AdapterFactoryTreeEditor(selectionViewer.getTree(), adapterFactory);

                createContextMenuFor(selectionViewer);
                int pageIndex = addPage(viewerPane.getControl());
                setPageText(pageIndex, getString("_UI_SelectionPage_label"));
            }

            getSite().getShell().getDisplay().asyncExec(new Runnable() {
                public void run() {
                    setActivePage(0);
                }
            });
        }

        // Ensures that this editor will only display the page's tab
        // area if there are more than one page
        //
        getContainer().addControlListener(new ControlAdapter() {
            boolean guard = false;

            @Override
            public void controlResized(ControlEvent event) {
                if (!guard) {
                    guard = true;
                    hideTabs();
                    guard = false;
                }
            }
        });

        getSite().getShell().getDisplay().asyncExec(new Runnable() {
            public void run() {
                updateProblemIndication();
            }
        });
    }

    /**
     * If there is just one page in the multi-page editor part,
     * this hides the single tab at the bottom.
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    protected void hideTabs() {
        if (getPageCount() <= 1) {
            setPageText(0, "");
            if (getContainer() instanceof CTabFolder) {
                ((CTabFolder) getContainer()).setTabHeight(1);
                Point point = getContainer().getSize();
                getContainer().setSize(point.x, point.y + 6);
            }
        }
    }

    /**
     * If there is more than one page in the multi-page editor part,
     * this shows the tabs at the bottom.
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    protected void showTabs() {
        if (getPageCount() > 1) {
            setPageText(0, getString("_UI_SelectionPage_label"));
            if (getContainer() instanceof CTabFolder) {
                ((CTabFolder) getContainer()).setTabHeight(SWT.DEFAULT);
                Point point = getContainer().getSize();
                getContainer().setSize(point.x, point.y - 6);
            }
        }
    }

    /**
     * This is used to track the active viewer.
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    @Override
    protected void pageChange(int pageIndex) {
        super.pageChange(pageIndex);

        if (contentOutlinePage != null) {
            handleContentOutlineSelection(contentOutlinePage.getSelection());
        }
    }

    /**
     * This is how the framework determines which interfaces we implement.
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    @SuppressWarnings("unchecked")
    @Override
    public Object getAdapter(Class key) {
        if (key.equals(IContentOutlinePage.class)) {
            return showOutlineView() ? getContentOutlinePage() : null;
        } else if (key.equals(IPropertySheetPage.class)) {
            return getPropertySheetPage();
        } else if (key.equals(IGotoMarker.class)) {
            return this;
        } else {
            return super.getAdapter(key);
        }
    }

    /**
     * This accesses a cached version of the content outliner.
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    public IContentOutlinePage getContentOutlinePage() {
        if (contentOutlinePage == null) {
            // The content outline is just a tree.
            //
            class MyContentOutlinePage extends ContentOutlinePage {
                @Override
                public void createControl(Composite parent) {
                    super.createControl(parent);
                    contentOutlineViewer = getTreeViewer();
                    contentOutlineViewer.addSelectionChangedListener(this);

                    // Set up the tree viewer.
                    //
                    contentOutlineViewer.setContentProvider(new AdapterFactoryContentProvider(adapterFactory));
                    contentOutlineViewer.setLabelProvider(new AdapterFactoryLabelProvider(adapterFactory));
                    contentOutlineViewer.setInput(editingDomain.getResourceSet());

                    // Make sure our popups work.
                    //
                    createContextMenuFor(contentOutlineViewer);

                    if (!editingDomain.getResourceSet().getResources().isEmpty()) {
                        // Select the root object in the view.
                        //
                        contentOutlineViewer.setSelection(
                                new StructuredSelection(editingDomain.getResourceSet().getResources().get(0)),
                                true);
                    }
                }

                @Override
                public void makeContributions(IMenuManager menuManager, IToolBarManager toolBarManager,
                        IStatusLineManager statusLineManager) {
                    super.makeContributions(menuManager, toolBarManager, statusLineManager);
                    contentOutlineStatusLineManager = statusLineManager;
                }

                @Override
                public void setActionBars(IActionBars actionBars) {
                    super.setActionBars(actionBars);
                    getActionBarContributor().shareGlobalActions(this, actionBars);
                }
            }

            contentOutlinePage = new MyContentOutlinePage();

            // Listen to selection so that we can handle it is a special way.
            //
            contentOutlinePage.addSelectionChangedListener(new ISelectionChangedListener() {
                // This ensures that we handle selections correctly.
                //
                public void selectionChanged(SelectionChangedEvent event) {
                    handleContentOutlineSelection(event.getSelection());
                }
            });
        }

        return contentOutlinePage;
    }

    /**
     * This accesses a cached version of the property sheet.
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    public IPropertySheetPage getPropertySheetPage() {
        if (propertySheetPage == null) {
            propertySheetPage = new ExtendedPropertySheetPage(editingDomain) {
                @Override
                public void setSelectionToViewer(List<?> selection) {
                    DriverEditor.this.setSelectionToViewer(selection);
                    DriverEditor.this.setFocus();
                }

                @Override
                public void setActionBars(IActionBars actionBars) {
                    super.setActionBars(actionBars);
                    getActionBarContributor().shareGlobalActions(this, actionBars);
                }
            };
            propertySheetPage.setPropertySourceProvider(new AdapterFactoryContentProvider(adapterFactory));
        }

        return propertySheetPage;
    }

    /**
     * This deals with how we want selection in the outliner to affect the other views.
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    public void handleContentOutlineSelection(ISelection selection) {
        if (currentViewerPane != null && !selection.isEmpty() && selection instanceof IStructuredSelection) {
            Iterator<?> selectedElements = ((IStructuredSelection) selection).iterator();
            if (selectedElements.hasNext()) {
                // Get the first selected element.
                //
                Object selectedElement = selectedElements.next();

                // If it's the selection viewer, then we want it to select the same selection as this selection.
                //
                if (currentViewerPane.getViewer() == selectionViewer) {
                    ArrayList<Object> selectionList = new ArrayList<Object>();
                    selectionList.add(selectedElement);
                    while (selectedElements.hasNext()) {
                        selectionList.add(selectedElements.next());
                    }

                    // Set the selection to the widget.
                    //
                    selectionViewer.setSelection(new StructuredSelection(selectionList));
                } else {
                    // Set the input to the widget.
                    //
                    if (currentViewerPane.getViewer().getInput() != selectedElement) {
                        currentViewerPane.getViewer().setInput(selectedElement);
                        currentViewerPane.setTitle(selectedElement);
                    }
                }
            }
        }
    }

    /**
     * This is for implementing {@link IEditorPart} and simply tests the command stack.
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    @Override
    public boolean isDirty() {
        return ((BasicCommandStack) editingDomain.getCommandStack()).isSaveNeeded();
    }

    /**
     * This is for implementing {@link IEditorPart} and simply saves the model file.
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    //   @Override
    public void doSave(IProgressMonitor progressMonitor) {
        // Save only resources that have actually changed.
        //
        final Map<Object, Object> saveOptions = new HashMap<Object, Object>();
        saveOptions.put(Resource.OPTION_SAVE_ONLY_IF_CHANGED, Resource.OPTION_SAVE_ONLY_IF_CHANGED_MEMORY_BUFFER);

        // Do the work within an operation because this is a long running activity that modifies the workbench.
        //
        WorkspaceModifyOperation operation = new WorkspaceModifyOperation() {
            // This is the method that gets invoked when the operation runs.
            //
            //            @Override
            public void execute(IProgressMonitor monitor) {
                // Save the resources to the file system.
                //
                boolean first = true;
                for (Resource resource : editingDomain.getResourceSet().getResources()) {
                    if ((first || !resource.getContents().isEmpty() || isPersisted(resource))
                            && !editingDomain.isReadOnly(resource)) {
                        try {
                            savedResources.add(resource);
                            resource.save(saveOptions);
                        } catch (Exception exception) {
                            resourceToDiagnosticMap.put(resource, analyzeResourceProblems(resource, exception));
                        }
                        first = false;
                    }
                }
            }
        };

        updateProblemIndication = false;
        try {
            // This runs the options, and shows progress.
            //
            new ProgressMonitorDialog(getSite().getShell()).run(true, false, operation);

            // Refresh the necessary state.
            //
            ((BasicCommandStack) editingDomain.getCommandStack()).saveIsDone();
            firePropertyChange(IEditorPart.PROP_DIRTY);
        } catch (Exception exception) {
            // Something went wrong that shouldn't.
            //
            DriverEditorPlugin.INSTANCE.log(exception);
        }
        updateProblemIndication = true;
        updateProblemIndication();
    }

    /**
     * This returns whether something has been persisted to the URI of the specified resource.
     * The implementation uses the URI converter from the editor's resource set to try to open an input stream. 
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    protected boolean isPersisted(Resource resource) {
        boolean result = false;
        try {
            InputStream stream = editingDomain.getResourceSet().getURIConverter()
                    .createInputStream(resource.getURI());
            if (stream != null) {
                result = true;
                stream.close();
            }
        } catch (IOException e) {
            // Ignore
        }
        return result;
    }

    /**
     * This always returns true because it is not currently supported.
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    //   @Override
    public boolean isSaveAsAllowed() {
        return true;
    }

    /**
     * This also changes the editor's input.
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    //   @Override
    public void doSaveAs() {
        SaveAsDialog saveAsDialog = new SaveAsDialog(getSite().getShell());
        saveAsDialog.open();
        IPath path = saveAsDialog.getResult();
        if (path != null) {
            IFile file = ResourcesPlugin.getWorkspace().getRoot().getFile(path);
            if (file != null) {
                doSaveAs(URI.createPlatformResourceURI(file.getFullPath().toString(), true),
                        new FileEditorInput(file));
            }
        }
    }

    /**
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    protected void doSaveAs(URI uri, IEditorInput editorInput) {
        (editingDomain.getResourceSet().getResources().get(0)).setURI(uri);
        setInputWithNotify(editorInput);
        setPartName(editorInput.getName());
        IProgressMonitor progressMonitor = getActionBars().getStatusLineManager() != null
                ? getActionBars().getStatusLineManager().getProgressMonitor()
                : new NullProgressMonitor();
        doSave(progressMonitor);
    }

    /**
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    public void gotoMarker(IMarker marker) {
        try {
            if (marker.getType().equals(EValidator.MARKER)) {
                String uriAttribute = marker.getAttribute(EValidator.URI_ATTRIBUTE, null);
                if (uriAttribute != null) {
                    URI uri = URI.createURI(uriAttribute);
                    EObject eObject = editingDomain.getResourceSet().getEObject(uri, true);
                    if (eObject != null) {
                        setSelectionToViewer(Collections.singleton(editingDomain.getWrapper(eObject)));
                    }
                }
            }
        } catch (CoreException exception) {
            DriverEditorPlugin.INSTANCE.log(exception);
        }
    }

    /**
     * This is called during startup.
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    @Override
    public void init(IEditorSite site, IEditorInput editorInput) {
        setSite(site);
        setInputWithNotify(editorInput);
        setPartName(editorInput.getName());
        site.setSelectionProvider(this);
        site.getPage().addPartListener(partListener);
        ResourcesPlugin.getWorkspace().addResourceChangeListener(resourceChangeListener,
                IResourceChangeEvent.POST_CHANGE);
    }

    /**
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    @Override
    public void setFocus() {
        if (currentViewerPane != null) {
            currentViewerPane.setFocus();
        } else {
            getControl(getActivePage()).setFocus();
        }
    }

    /**
     * This implements {@link org.eclipse.jface.viewers.ISelectionProvider}.
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    public void addSelectionChangedListener(ISelectionChangedListener listener) {
        selectionChangedListeners.add(listener);
    }

    /**
     * This implements {@link org.eclipse.jface.viewers.ISelectionProvider}.
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    public void removeSelectionChangedListener(ISelectionChangedListener listener) {
        selectionChangedListeners.remove(listener);
    }

    /**
     * This implements {@link org.eclipse.jface.viewers.ISelectionProvider} to return this editor's overall selection.
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    public ISelection getSelection() {
        return editorSelection;
    }

    /**
     * This implements {@link org.eclipse.jface.viewers.ISelectionProvider} to set this editor's overall selection.
     * Calling this result will notify the listeners.
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    public void setSelection(ISelection selection) {
        editorSelection = selection;

        for (ISelectionChangedListener listener : selectionChangedListeners) {
            listener.selectionChanged(new SelectionChangedEvent(this, selection));
        }
        setStatusLineManager(selection);
    }

    /**
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    public void setStatusLineManager(ISelection selection) {
        IStatusLineManager statusLineManager = currentViewer != null && currentViewer == contentOutlineViewer
                ? contentOutlineStatusLineManager
                : getActionBars().getStatusLineManager();

        if (statusLineManager != null) {
            if (selection instanceof IStructuredSelection) {
                Collection<?> collection = ((IStructuredSelection) selection).toList();
                switch (collection.size()) {
                case 0: {
                    statusLineManager.setMessage(getString("_UI_NoObjectSelected"));
                    break;
                }
                case 1: {
                    String text = new AdapterFactoryItemDelegator(adapterFactory)
                            .getText(collection.iterator().next());
                    statusLineManager.setMessage(getString("_UI_SingleObjectSelected", text));
                    break;
                }
                default: {
                    statusLineManager
                            .setMessage(getString("_UI_MultiObjectSelected", Integer.toString(collection.size())));
                    break;
                }
                }
            } else {
                statusLineManager.setMessage("");
            }
        }
    }

    /**
     * This looks up a string in the plugin's plugin.properties file.
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    private static String getString(String key) {
        return DriverEditorPlugin.INSTANCE.getString(key);
    }

    /**
     * This looks up a string in plugin.properties, making a substitution.
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    private static String getString(String key, Object s1) {
        return DriverEditorPlugin.INSTANCE.getString(key, new Object[] { s1 });
    }

    /**
     * This implements {@link org.eclipse.jface.action.IMenuListener} to help fill the context menus with contributions from the Edit menu.
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    public void menuAboutToShow(IMenuManager menuManager) {
        ((IMenuListener) getEditorSite().getActionBarContributor()).menuAboutToShow(menuManager);
    }

    /**
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    public EditingDomainActionBarContributor getActionBarContributor() {
        return (EditingDomainActionBarContributor) getEditorSite().getActionBarContributor();
    }

    /**
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    public IActionBars getActionBars() {
        return getActionBarContributor().getActionBars();
    }

    /**
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    public AdapterFactory getAdapterFactory() {
        return adapterFactory;
    }

    /**
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    @Override
    public void dispose() {
        updateProblemIndication = false;

        ResourcesPlugin.getWorkspace().removeResourceChangeListener(resourceChangeListener);

        getSite().getPage().removePartListener(partListener);

        adapterFactory.dispose();

        if (getActionBarContributor().getActiveEditor() == this) {
            getActionBarContributor().setActiveEditor(null);
        }

        if (propertySheetPage != null) {
            propertySheetPage.dispose();
        }

        if (contentOutlinePage != null) {
            contentOutlinePage.dispose();
        }

        super.dispose();
    }

    /**
     * Returns whether the outline view should be presented to the user.
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated NOT
     */
    protected boolean showOutlineView() {
        return false;
    }

    // All EObject iterated. Key: EObject, Value: Error
    Map<EObject, Boolean> iteratedObjects = new HashMap<EObject, Boolean>();

    // All error EObject generated by validating
    Set<EObject> errorEObjects = new HashSet<EObject>();

    /**
     * Validate the model. 
     */
    public void validate() {

        URI resourceURI = EditUIUtil.getURI(getEditorInput());
        Resource resource = editingDomain.getResourceSet().getResource(resourceURI, true);

        StructuredSelection selection = new StructuredSelection(resource.getContents().get(0));

        validationAction.setActiveWorkbenchPart(this);
        validationAction.updateSelection(selection);

        final Shell shell = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell();

        shell.getDisplay().asyncExec(new Runnable() {
            public void run() {

                // Clear all before validating
                iteratedObjects.clear();
                errorEObjects.clear();

                validationAction.run();

                // Cache all error EObject after validating
                for (Iterator<String> it = validationAction.getErrorURIs().iterator(); it.hasNext();) {
                    String uriAttribute = it.next();
                    if (uriAttribute != null) {
                        URI uri = URI.createURI(uriAttribute);
                        EObject eObj = editingDomain.getResourceSet().getEObject(uri, true);
                        errorEObjects.add(eObj);
                    }
                }

                // Refresh TreeViewer
                selectionViewer.refresh();
            }
        });
    }

    public boolean hasErrors(Object obj) {

        if (obj == null)
            return false;

        if (obj instanceof IWrapperItemProvider) {
            IWrapperItemProvider provider = (IWrapperItemProvider) obj;
            return hasErrors(provider.getValue());
        }

        if (obj instanceof FeatureMap.Entry) {
            FeatureMap.Entry entry = (FeatureMap.Entry) obj;
            return hasErrors(entry.getValue());
        }

        if (!(obj instanceof EObject)) {
            return false;
        }

        EObject eObject = (EObject) obj;

        // If iterated, return isError directly. 
        Boolean error = iteratedObjects.get(obj);
        if (error != null)
            return error;

        // If the EObject is error
        if (errorEObjects.contains(eObject)) {
            error = true;
        }

        // Iterate all children. If children have errors, parent shows error icon too. 
        Iterator<EObject> iterator = eObject.eContents().iterator();
        while (iterator.hasNext()) {
            EObject child = iterator.next();
            if (obj == child)
                continue;
            if (hasErrors(child)) {
                error = true;
            }
        }

        // Cache iterated EObject
        iteratedObjects.put(eObject, error);

        if (error == null)
            error = false;

        return error;
    }
}