content: /**
   * <copyright>
   * </copyright>
   *
   * $Id$
   */
  package oscfg.presentation;
  
  
  import java.util.ArrayList;
  import java.util.Arrays;
  import java.util.Collection;
  import java.util.Collections;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  import java.util.MissingResourceException;
  import java.util.StringTokenizer;
  
  import org.eclipse.emf.common.CommonPlugin;
  
  import org.eclipse.emf.common.util.URI;
  
  import org.eclipse.emf.ecore.EClass;
  import org.eclipse.emf.ecore.EClassifier;
  
  import org.eclipse.emf.ecore.resource.Resource;
  import org.eclipse.emf.ecore.resource.ResourceSet;
  
  import org.eclipse.emf.ecore.resource.impl.ResourceSetImpl;
  
  import org.eclipse.emf.ecore.EObject;
  
  import org.eclipse.emf.ecore.xmi.XMLResource;
  
  import org.eclipse.emf.edit.ui.provider.ExtendedImageRegistry;
  
  import org.eclipse.core.resources.IContainer;
  import org.eclipse.core.resources.IFile;
  import org.eclipse.core.resources.IFolder;
  import org.eclipse.core.resources.IProject;
  import org.eclipse.core.resources.IResource;
  import org.eclipse.core.resources.ResourcesPlugin;
  
  import org.eclipse.core.runtime.IProgressMonitor;
  
  import org.eclipse.jface.dialogs.MessageDialog;
  
  import org.eclipse.jface.viewers.IStructuredSelection;
  
  import org.eclipse.jface.wizard.Wizard;
  import org.eclipse.jface.wizard.WizardPage;
  
  import org.eclipse.swt.SWT;
  
  import org.eclipse.swt.events.ModifyListener;
  import org.eclipse.swt.events.ModifyEvent;
  
  import org.eclipse.swt.layout.GridData;
  import org.eclipse.swt.layout.GridLayout;
  
  import org.eclipse.swt.widgets.Combo;
  import org.eclipse.swt.widgets.Composite;
  import org.eclipse.swt.widgets.Label;
  
  import org.eclipse.ui.INewWizard;
  import org.eclipse.ui.IWorkbench;
  
  import org.eclipse.ui.actions.WorkspaceModifyOperation;
  
  import org.eclipse.ui.dialogs.WizardNewFileCreationPage;
  
  import org.eclipse.ui.part.FileEditorInput;
  import org.eclipse.ui.part.ISetSelectionTarget;
  
  import oscfg.OscfgFactory;
  import oscfg.OscfgPackage;
  import oscfg.provider.OscfgEditPlugin;
  
  
  import org.eclipse.core.runtime.Path;
  
  import org.eclipse.jface.viewers.ISelection;
  import org.eclipse.jface.viewers.StructuredSelection;
  
  import org.eclipse.ui.IWorkbenchPage;
  import org.eclipse.ui.IWorkbenchPart;
  import org.eclipse.ui.IWorkbenchWindow;
  import org.eclipse.ui.PartInitException;
  
  
  /**
   * This is a simple wizard for creating a new model file.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public class OscfgModelWizard extends Wizard implements INewWizard {
  	/**
  	 * The supported extensions for created files.
  	 * <!-- begin-user-doc -->
  	 * <!-- end-user-doc -->
  	 * @generated
  	 */
  	public static final List<String> FILE_EXTENSIONS =
  		Collections.unmodifiableList(Arrays.asList(OscfgEditorPlugin.INSTANCE.getString("_UI_OscfgEditorFilenameExtensions").split("\\s*,\\s*")));
  
  	/**
  	 * A formatted list of supported file extensions, suitable for display.
  	 * <!-- begin-user-doc -->
  	 * <!-- end-user-doc -->
  	 * @generated
  	 */
  	public static final String FORMATTED_FILE_EXTENSIONS =
  		OscfgEditorPlugin.INSTANCE.getString("_UI_OscfgEditorFilenameExtensions").replaceAll("\\s*,\\s*", ", ");
  
  	/**
  	 * This caches an instance of the model package.
  	 * <!-- begin-user-doc -->
  	 * <!-- end-user-doc -->
  	 * @generated
  	 */
  	protected OscfgPackage oscfgPackage = OscfgPackage.eINSTANCE;
  
  	/**
  	 * This caches an instance of the model factory.
  	 * <!-- begin-user-doc -->
  	 * <!-- end-user-doc -->
  	 * @generated
  	 */
  	protected OscfgFactory oscfgFactory = oscfgPackage.getOscfgFactory();
  
  	/**
  	 * This is the file creation page.
  	 * <!-- begin-user-doc -->
  	 * <!-- end-user-doc -->
  	 * @generated
  	 */
  	protected OscfgModelWizardNewFileCreationPage newFileCreationPage;
  
  	/**
  	 * This is the initial object creation page.
  	 * <!-- begin-user-doc -->
  	 * <!-- end-user-doc -->
  	 * @generated
  	 */
  	protected OscfgModelWizardInitialObjectCreationPage initialObjectCreationPage;
  
  	/**
  	 * Remember the selection during initialization for populating the default container.
  	 * <!-- begin-user-doc -->
  	 * <!-- end-user-doc -->
  	 * @generated
  	 */
  	protected IStructuredSelection selection;
  
  	/**
  	 * Remember the workbench during initialization.
  	 * <!-- begin-user-doc -->
  	 * <!-- end-user-doc -->
  	 * @generated
  	 */
  	protected IWorkbench workbench;
  
  	/**
  	 * Caches the names of the types that can be created as the root object.
  	 * <!-- begin-user-doc -->
  	 * <!-- end-user-doc -->
  	 * @generated
  	 */
  	protected List<String> initialObjectNames;
  
  	/**
  	 * This just records the information.
  	 * <!-- begin-user-doc -->
  	 * <!-- end-user-doc -->
  	 * @generated
  	 */
  	public void init(IWorkbench workbench, IStructuredSelection selection) {
  		this.workbench = workbench;
  		this.selection = selection;
  		setWindowTitle(OscfgEditorPlugin.INSTANCE.getString("_UI_Wizard_label"));
  		setDefaultPageImageDescriptor(ExtendedImageRegistry.INSTANCE.getImageDescriptor(OscfgEditorPlugin.INSTANCE.getImage("full/wizban/NewOscfg")));
  	}
  
  	/**
  	 * Returns the names of the types that can be created as the root object.
  	 * <!-- begin-user-doc -->
  	 * <!-- end-user-doc -->
  	 * @generated
  	 */
  	protected Collection<String> getInitialObjectNames() {
  		if (initialObjectNames == null) {
  			initialObjectNames = new ArrayList<String>();
  			for (EClassifier eClassifier : oscfgPackage.getEClassifiers()) {
  				if (eClassifier instanceof EClass) {
  					EClass eClass = (EClass)eClassifier;
  					if (!eClass.isAbstract()) {
  						initialObjectNames.add(eClass.getName());
  					}
  				}
  			}
  			Collections.sort(initialObjectNames, CommonPlugin.INSTANCE.getComparator());
  		}
  		return initialObjectNames;
  	}
  
  	/**
  	 * Create a new model.
  	 * <!-- begin-user-doc -->
  	 * <!-- end-user-doc -->
  	 * @generated
  	 */
  	protected EObject createInitialModel() {
  		EClass eClass = (EClass)oscfgPackage.getEClassifier(initialObjectCreationPage.getInitialObjectName());
  		EObject rootObject = oscfgFactory.create(eClass);
  		return rootObject;
  	}
  
  	/**
  	 * Do the work after everything is specified.
  	 * <!-- begin-user-doc -->
  	 * <!-- end-user-doc -->
  	 * @generated
  	 */
  	@Override
  	public boolean performFinish() {
  		try {
  			// Remember the file.
  			//
  			final IFile modelFile = getModelFile();
  
  			// Do the work within an operation.
  			//
  			WorkspaceModifyOperation operation =
  				new WorkspaceModifyOperation() {
  					@Override
  					protected void execute(IProgressMonitor progressMonitor) {
  						try {
  							// Create a resource set
  							//
  							ResourceSet resourceSet = new ResourceSetImpl();
  
  							// Get the URI of the model file.
  							//
  							URI fileURI = URI.createPlatformResourceURI(modelFile.getFullPath().toString(), true);
  
  							// Create a resource for this file.
  							//
  							Resource resource = resourceSet.createResource(fileURI);
  
  							// Add the initial model object to the contents.
  							//
  							EObject rootObject = createInitialModel();
  							if (rootObject != null) {
  								resource.getContents().add(rootObject);
  							}
  
  							// Save the contents of the resource to the file system.
  							//
  							Map<Object, Object> options = new HashMap<Object, Object>();
  							options.put(XMLResource.OPTION_ENCODING, initialObjectCreationPage.getEncoding());
  							resource.save(options);
  						}
  						catch (Exception exception) {
  							OscfgEditorPlugin.INSTANCE.log(exception);
  						}
  						finally {
  							progressMonitor.done();
  						}
  					}
  				};
  
  			getContainer().run(false, false, operation);
  
  			// Select the new file resource in the current view.
  			//
  			IWorkbenchWindow workbenchWindow = workbench.getActiveWorkbenchWindow();
  			IWorkbenchPage page = workbenchWindow.getActivePage();
  			final IWorkbenchPart activePart = page.getActivePart();
  			if (activePart instanceof ISetSelectionTarget) {
  				final ISelection targetSelection = new StructuredSelection(modelFile);
  				getShell().getDisplay().asyncExec
  					(new Runnable() {
  						 public void run() {
  							 ((ISetSelectionTarget)activePart).selectReveal(targetSelection);
  						 }
  					 });
  			}
  
  			// Open an editor on the new file.
  			//
  			try {
  				page.openEditor
  					(new FileEditorInput(modelFile),
  					 workbench.getEditorRegistry().getDefaultEditor(modelFile.getFullPath().toString()).getId());					 	 
  			}
  			catch (PartInitException exception) {
  				MessageDialog.openError(workbenchWindow.getShell(), OscfgEditorPlugin.INSTANCE.getString("_UI_OpenEditorError_label"), exception.getMessage());
  				return false;
  			}
  
  			return true;
  		}
  		catch (Exception exception) {
  			OscfgEditorPlugin.INSTANCE.log(exception);
  			return false;
  		}
  	}
  
  	/**
  	 * This is the one page of the wizard.
  	 * <!-- begin-user-doc -->
  	 * <!-- end-user-doc -->
  	 * @generated
  	 */
  	public class OscfgModelWizardNewFileCreationPage extends WizardNewFileCreationPage {
  		/**
  		 * Pass in the selection.
  		 * <!-- begin-user-doc -->
  		 * <!-- end-user-doc -->
  		 * @generated
  		 */
  		public OscfgModelWizardNewFileCreationPage(String pageId, IStructuredSelection selection) {
  			super(pageId, selection);
  		}
  
  		/**
  		 * The framework calls this to see if the file is correct.
  		 * <!-- begin-user-doc -->
  		 * <!-- end-user-doc -->
  		 * @generated
  		 */
  	@Override
  		protected boolean validatePage() {
  			if (super.validatePage()) {
  				String extension = new Path(getFileName()).getFileExtension();
  				if (extension == null || !FILE_EXTENSIONS.contains(extension)) {
  					String key = FILE_EXTENSIONS.size() > 1 ? "_WARN_FilenameExtensions" : "_WARN_FilenameExtension";
  					setErrorMessage(OscfgEditorPlugin.INSTANCE.getString(key, new Object [] { FORMATTED_FILE_EXTENSIONS }));
  					return false;
  				}
  				return true;
  			}
  			return false;
  		}
  
  		/**
  		 * <!-- begin-user-doc -->
  		 * <!-- end-user-doc -->
  		 * @generated
  		 */
  		public IFile getModelFile() {
  			return ResourcesPlugin.getWorkspace().getRoot().getFile(getContainerFullPath().append(getFileName()));
  		}
  	}
  
  	/**
  	 * This is the page where the type of object to create is selected.
  	 * <!-- begin-user-doc -->
  	 * <!-- end-user-doc -->
  	 * @generated
  	 */
  	public class OscfgModelWizardInitialObjectCreationPage extends WizardPage {
  		/**
  		 * <!-- begin-user-doc -->
  		 * <!-- end-user-doc -->
  		 * @generated
  		 */
  		protected Combo initialObjectField;
  
  		/**
  		 * @generated
  		 * <!-- begin-user-doc -->
  		 * <!-- end-user-doc -->
  		 */
  		protected List<String> encodings;
  
  		/**
  		 * <!-- begin-user-doc -->
  		 * <!-- end-user-doc -->
  		 * @generated
  		 */
  		protected Combo encodingField;
  
  		/**
  		 * Pass in the selection.
  		 * <!-- begin-user-doc -->
  		 * <!-- end-user-doc -->
  		 * @generated
  		 */
  		public OscfgModelWizardInitialObjectCreationPage(String pageId) {
  			super(pageId);
  		}
  
  		/**
  		 * <!-- begin-user-doc -->
  		 * <!-- end-user-doc -->
  		 * @generated
  		 */
  		public void createControl(Composite parent) {
  			Composite composite = new Composite(parent, SWT.NONE); {
  				GridLayout layout = new GridLayout();
  				layout.numColumns = 1;
  				layout.verticalSpacing = 12;
  				composite.setLayout(layout);
  
  				GridData data = new GridData();
  				data.verticalAlignment = GridData.FILL;
  				data.grabExcessVerticalSpace = true;
  				data.horizontalAlignment = GridData.FILL;
  				composite.setLayoutData(data);
  			}
  
  			Label containerLabel = new Label(composite, SWT.LEFT);
  			{
  				containerLabel.setText(OscfgEditorPlugin.INSTANCE.getString("_UI_ModelObject"));
  
  				GridData data = new GridData();
  				data.horizontalAlignment = GridData.FILL;
  				containerLabel.setLayoutData(data);
  			}
  
  			initialObjectField = new Combo(composite, SWT.BORDER);
  			{
  				GridData data = new GridData();
  				data.horizontalAlignment = GridData.FILL;
  				data.grabExcessHorizontalSpace = true;
  				initialObjectField.setLayoutData(data);
  			}
  
  			for (String objectName : getInitialObjectNames()) {
  				initialObjectField.add(getLabel(objectName));
  			}
  
  			if (initialObjectField.getItemCount() == 1) {
  				initialObjectField.select(0);
  			}
  			initialObjectField.addModifyListener(validator);
  
  			Label encodingLabel = new Label(composite, SWT.LEFT);
  			{
  				encodingLabel.setText(OscfgEditorPlugin.INSTANCE.getString("_UI_XMLEncoding"));
  
  				GridData data = new GridData();
  				data.horizontalAlignment = GridData.FILL;
  				encodingLabel.setLayoutData(data);
  			}
  			encodingField = new Combo(composite, SWT.BORDER);
  			{
  				GridData data = new GridData();
  				data.horizontalAlignment = GridData.FILL;
  				data.grabExcessHorizontalSpace = true;
  				encodingField.setLayoutData(data);
  			}
  
  			for (String encoding : getEncodings()) {
  				encodingField.add(encoding);
  			}
  
  			encodingField.select(0);
  			encodingField.addModifyListener(validator);
  
  			setPageComplete(validatePage());
  			setControl(composite);
  		}
  
  		/**
  		 * <!-- begin-user-doc -->
  		 * <!-- end-user-doc -->
  		 * @generated
  		 */
  		protected ModifyListener validator =
  			new ModifyListener() {
  				public void modifyText(ModifyEvent e) {
  					setPageComplete(validatePage());
  				}
  			};
  
  		/**
  		 * <!-- begin-user-doc -->
  		 * <!-- end-user-doc -->
  		 * @generated
  		 */
  		protected boolean validatePage() {
  			return getInitialObjectName() != null && getEncodings().contains(encodingField.getText());
  		}
  
  		/**
  		 * <!-- begin-user-doc -->
  		 * <!-- end-user-doc -->
  		 * @generated
  		 */
  		@Override
  		public void setVisible(boolean visible) {
  			super.setVisible(visible);
  			if (visible) {
  				if (initialObjectField.getItemCount() == 1) {
  					initialObjectField.clearSelection();
  					encodingField.setFocus();
  				}
  				else {
  					encodingField.clearSelection();
  					initialObjectField.setFocus();
  				}
  			}
  		}
  
  		/**
  		 * <!-- begin-user-doc -->
  		 * <!-- end-user-doc -->
  		 * @generated
  		 */
  		public String getInitialObjectName() {
  			String label = initialObjectField.getText();
  
  			for (String name : getInitialObjectNames()) {
  				if (getLabel(name).equals(label)) {
  					return name;
  				}
  			}
  			return null;
  		}
  
  		/**
  		 * <!-- begin-user-doc -->
  		 * <!-- end-user-doc -->
  		 * @generated
  		 */
  		public String getEncoding() {
  			return encodingField.getText();
  		}
  
  		/**
  		 * Returns the label for the specified type name.
  		 * <!-- begin-user-doc -->
  		 * <!-- end-user-doc -->
  		 * @generated
  		 */
  		protected String getLabel(String typeName) {
  			try {
  				return OscfgEditPlugin.INSTANCE.getString("_UI_" + typeName + "_type");
  			}
  			catch(MissingResourceException mre) {
  				OscfgEditorPlugin.INSTANCE.log(mre);
  			}
  			return typeName;
  		}
  
  		/**
  		 * <!-- begin-user-doc -->
  		 * <!-- end-user-doc -->
  		 * @generated
  		 */
  		protected Collection<String> getEncodings() {
  			if (encodings == null) {
  				encodings = new ArrayList<String>();
  				for (StringTokenizer stringTokenizer = new StringTokenizer(OscfgEditorPlugin.INSTANCE.getString("_UI_XMLEncodingChoices")); stringTokenizer.hasMoreTokens(); ) {
  					encodings.add(stringTokenizer.nextToken());
  				}
  			}
  			return encodings;
  		}
  	}
  
  	/**
  	 * The framework calls this to create the contents of the wizard.
  	 * <!-- begin-user-doc -->
  	 * <!-- end-user-doc -->
  	 * @generated
  	 */
  		@Override
  	public void addPages() {
  		// Create a page, set the title, and the initial model file name.
  		//
  		newFileCreationPage = new OscfgModelWizardNewFileCreationPage("Whatever", selection);
  		newFileCreationPage.setTitle(OscfgEditorPlugin.INSTANCE.getString("_UI_OscfgModelWizard_label"));
  		newFileCreationPage.setDescription(OscfgEditorPlugin.INSTANCE.getString("_UI_OscfgModelWizard_description"));
  		newFileCreationPage.setFileName(OscfgEditorPlugin.INSTANCE.getString("_UI_OscfgEditorFilenameDefaultBase") + "." + FILE_EXTENSIONS.get(0));
  		addPage(newFileCreationPage);
  
  		// Try and get the resource selection to determine a current directory for the file dialog.
  		//
  		if (selection != null && !selection.isEmpty()) {
  			// Get the resource...
  			//
  			Object selectedElement = selection.iterator().next();
  			if (selectedElement instanceof IResource) {
  				// Get the resource parent, if its a file.
  				//
  				IResource selectedResource = (IResource)selectedElement;
  				if (selectedResource.getType() == IResource.FILE) {
  					selectedResource = selectedResource.getParent();
  				}
  
  				// This gives us a directory...
  				//
  				if (selectedResource instanceof IFolder || selectedResource instanceof IProject) {
  					// Set this for the container.
  					//
  					newFileCreationPage.setContainerFullPath(selectedResource.getFullPath());
  
  					// Make up a unique new name here.
  					//
  					String defaultModelBaseFilename = OscfgEditorPlugin.INSTANCE.getString("_UI_OscfgEditorFilenameDefaultBase");
  					String defaultModelFilenameExtension = FILE_EXTENSIONS.get(0);
  					String modelFilename = defaultModelBaseFilename + "." + defaultModelFilenameExtension;
  					for (int i = 1; ((IContainer)selectedResource).findMember(modelFilename) != null; ++i) {
  						modelFilename = defaultModelBaseFilename + i + "." + defaultModelFilenameExtension;
  					}
  					newFileCreationPage.setFileName(modelFilename);
  				}
  			}
  		}
  		initialObjectCreationPage = new OscfgModelWizardInitialObjectCreationPage("Whatever2");
  		initialObjectCreationPage.setTitle(OscfgEditorPlugin.INSTANCE.getString("_UI_OscfgModelWizard_label"));
  		initialObjectCreationPage.setDescription(OscfgEditorPlugin.INSTANCE.getString("_UI_Wizard_initial_object_description"));
  		addPage(initialObjectCreationPage);
  	}
  
  	/**
  	 * Get the file from the page.
  	 * <!-- begin-user-doc -->
  	 * <!-- end-user-doc -->
  	 * @generated
  	 */
  	public IFile getModelFile() {
  		return newFileCreationPage.getModelFile();
  	}
  
  }
  