org.eclipse.jdt.ui/ui refactoring/org/eclipse/jdt/internal/ui/refactoring/ExtractSupertypeMemberPage.java - jdt/eclipse.jdt.ui - Git at Google

 /*******************************************************************************
  * Copyright (c) 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 Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.jdt.internal.ui.refactoring;

 import com.ibm.icu.text.Collator;

 import java.lang.reflect.InvocationTargetException;
 import java.util.Arrays;
 import java.util.HashSet;
 import java.util.Iterator;
 import java.util.LinkedList;
 import java.util.Set;

 import org.eclipse.core.runtime.Assert;
 import org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.core.runtime.OperationCanceledException;

 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.ModifyEvent;
 import org.eclipse.swt.events.ModifyListener;
 import org.eclipse.swt.events.SelectionAdapter;
 import org.eclipse.swt.events.SelectionEvent;
 import org.eclipse.swt.graphics.Image;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.Button;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Control;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Shell;
 import org.eclipse.swt.widgets.Text;

 import org.eclipse.jface.dialogs.Dialog;
 import org.eclipse.jface.operation.IRunnableWithProgress;
 import org.eclipse.jface.viewers.ArrayContentProvider;
 import org.eclipse.jface.viewers.DoubleClickEvent;
 import org.eclipse.jface.viewers.IDoubleClickListener;
 import org.eclipse.jface.viewers.ILabelProvider;
 import org.eclipse.jface.viewers.ISelectionChangedListener;
 import org.eclipse.jface.viewers.IStructuredSelection;
 import org.eclipse.jface.viewers.ITableLabelProvider;
 import org.eclipse.jface.viewers.SelectionChangedEvent;
 import org.eclipse.jface.viewers.TableViewer;
 import org.eclipse.jface.viewers.Viewer;
 import org.eclipse.jface.viewers.ViewerSorter;
 import org.eclipse.jface.window.Window;

 import org.eclipse.ui.PlatformUI;
 import org.eclipse.ui.dialogs.SelectionDialog;

 import org.eclipse.ltk.core.refactoring.RefactoringStatus;

 import org.eclipse.jdt.core.IType;
 import org.eclipse.jdt.core.JavaModelException;

 import org.eclipse.jdt.internal.corext.refactoring.structure.ExtractSupertypeProcessor;
 import org.eclipse.jdt.internal.corext.refactoring.structure.ExtractSupertypeRefactoring;

 import org.eclipse.jdt.ui.JavaElementLabels;
 import org.eclipse.jdt.ui.JavaElementSorter;

 import org.eclipse.jdt.internal.ui.IJavaHelpContextIds;
 import org.eclipse.jdt.internal.ui.dialogs.TextFieldNavigationHandler;
 import org.eclipse.jdt.internal.ui.util.ExceptionHandler;
 import org.eclipse.jdt.internal.ui.util.SWTUtil;
 import org.eclipse.jdt.internal.ui.viewsupport.AppearanceAwareLabelProvider;
 import org.eclipse.jdt.internal.ui.viewsupport.JavaElementImageProvider;

 /**
  * Wizard page for the extract supertype refactoring, which, apart from pull up
  * facilities, also allows to specify the types where to extract the supertype.
  *
  * @since 3.2
  */
 public final class ExtractSupertypeMemberPage extends PullUpMemberPage {

 	/** Dialog to select supertypes */
 	private static class SupertypeSelectionDialog extends SelectionDialog {

 		/** The table viewer */
 		private TableViewer fViewer;

 		/**
 		 * Creates a new supertype selection dialog.
 		 *
 		 * @param shell
 		 *            the parent shell
 		 */
 		public SupertypeSelectionDialog(final Shell shell) {
 			super(shell);
 		}

 		/**
 		 * {@inheritDoc}
 		 */
 		public void create() {
 			setShellStyle(SWT.DIALOG_TRIM | SWT.RESIZE);
 			super.create();
 			getShell().setText(RefactoringMessages.ExtractSupertypeMemberPage_choose_type_caption);
 		}

 		/**
 		 * {@inheritDoc}
 		 */
 		protected Control createDialogArea(final Composite composite) {
 			Assert.isNotNull(composite);
 			setMessage(RefactoringMessages.ExtractSupertypeMemberPage_choose_type_message);
 			final Composite control= (Composite) super.createDialogArea(composite);
 			createMessageArea(control);
 			fViewer= new TableViewer(control, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL | SWT.BORDER);
 			fViewer.setLabelProvider(createLabelProvider());
 			fViewer.setContentProvider(new ArrayContentProvider());
 			fViewer.setSorter(new SupertypeSelectionViewerSorter());
 			fViewer.addSelectionChangedListener(new ISelectionChangedListener() {

 				public void selectionChanged(final SelectionChangedEvent event) {
 					setSelectionResult(((IStructuredSelection) fViewer.getSelection()).toArray());
 				}
 			});
 			fViewer.addDoubleClickListener(new IDoubleClickListener() {

 				public void doubleClick(final DoubleClickEvent event) {
 					setSelectionResult(((IStructuredSelection) fViewer.getSelection()).toArray());
 					close();
 				}
 			});
 			final GridData data= new GridData(GridData.FILL_BOTH);
 			data.heightHint= convertHeightInCharsToPixels(15);
 			data.widthHint= convertWidthInCharsToPixels(55);
 			fViewer.getTable().setLayoutData(data);
 			applyDialogFont(control);
 			return control;
 		}

 		/**
 		 * Sets the input of this dialog.
 		 *
 		 * @param object
 		 *            the input
 		 */
 		public void setInput(final Object object) {
 			fViewer.setInput(object);
 		}
 	}

 	/** The label provider */
 	private static class SupertypeSelectionLabelProvider extends AppearanceAwareLabelProvider implements ITableLabelProvider {

 		/**
 		 * Creates a new supertype selection label provider.
 		 *
 		 * @param textFlags
 		 *            the text flags
 		 * @param imageFlags
 		 *            the image flags
 		 */
 		public SupertypeSelectionLabelProvider(final long textFlags, final int imageFlags) {
 			super(textFlags, imageFlags);
 		}

 		/**
 		 * {@inheritDoc}
 		 */
 		public Image getColumnImage(final Object element, final int index) {
 			return getImage(element);
 		}

 		/**
 		 * {@inheritDoc}
 		 */
 		public String getColumnText(final Object element, final int index) {
 			return getText(element);
 		}
 	}

 	/** The viewer sorter */
 	private static class SupertypeSelectionViewerSorter extends ViewerSorter {

 		/**
 		 * {@inheritDoc}
 		 */
 		public int compare(final Viewer viewer, final Object first, final Object second) {
 			final IType predecessor= (IType) first;
 			final IType successor= (IType) second;
 			return Collator.getInstance().compare(predecessor.getElementName(), successor.getElementName());
 		}
 	}

 	/**
 	 * Creates a label provider for a type list.
 	 *
 	 * @return a label provider
 	 */
 	private static ILabelProvider createLabelProvider() {
 		return new SupertypeSelectionLabelProvider(JavaElementLabels.T_TYPE_PARAMETERS | JavaElementLabels.T_POST_QUALIFIED, JavaElementImageProvider.OVERLAY_ICONS);
 	}

 	/** The supertype name field */
 	private Text fNameField;

 	/** The table viewer */
 	private TableViewer fTableViewer;

 	/** The types to extract */
 	private final Set fTypesToExtract= new HashSet(2);

 	/**
 	 * Creates a new extract supertype member page.
 	 *
 	 * @param name
 	 *            the page name
 	 * @param page
 	 *            the method page
 	 */
 	public ExtractSupertypeMemberPage(final String name, final ExtractSupertypeMethodPage page) {
 		super(name, page);
 		setDescription(RefactoringMessages.ExtractSupertypeMemberPage_page_title);
 		METHOD_LABELS[PULL_UP_ACTION]= RefactoringMessages.ExtractSupertypeMemberPage_extract;
 		METHOD_LABELS[DECLARE_ABSTRACT_ACTION]= RefactoringMessages.ExtractSupertypeMemberPage_declare_abstract;
 		TYPE_LABELS[PULL_UP_ACTION]= RefactoringMessages.ExtractSupertypeMemberPage_extract;
 	}

 	/**
 	 * {@inheritDoc}
 	 */
 	protected void checkPageCompletionStatus(final boolean display) {
 		final RefactoringStatus status= getProcessor().checkExtractedCompilationUnit();
 		setMessage(null);
 		if (display)
 			setPageComplete(status);
 		else
 			setPageComplete(!status.hasFatalError());
 		fSuccessorPage.fireSettingsChanged();
 	}

 	/**
 	 * Computes the candidate types.
 	 *
 	 * @throws InterruptedException
 	 *             if the computation has been interrupted
 	 */
 	protected void computeCandidateTypes() throws InterruptedException {
 		if (fCandidateTypes != null && fCandidateTypes.length > 0)
 			return;
 		try {
 			getWizard().getContainer().run(true, true, new IRunnableWithProgress() {

 				public void run(final IProgressMonitor monitor) throws InvocationTargetException {
 					try {
 						fCandidateTypes= getProcessor().getCandidateTypes(new RefactoringStatus(), monitor);
 					} finally {
 						monitor.done();
 					}
 				}
 			});
 		} catch (InvocationTargetException exception) {
 			ExceptionHandler.handle(exception, getShell(), RefactoringMessages.ExtractSupertypeMemberPage_extract_supertype, RefactoringMessages.PullUpInputPage_exception);
 		} catch (InterruptedException exception) {
 			fCandidateTypes= new IType[0];
 			throw new InterruptedException();
 		} catch (OperationCanceledException exception) {
 			fCandidateTypes= new IType[0];
 		}
 	}

 	/**
 	 * Creates the button composite.
 	 *
 	 * @param parent
 	 *            the parent control
 	 */
 	protected void createButtonComposite(final Composite parent) {
 		final Composite buttons= new Composite(parent, SWT.NONE);
 		final GridLayout layout= new GridLayout();
 		layout.marginHeight= 0;
 		layout.marginWidth= 0;
 		buttons.setLayout(layout);
 		buttons.setLayoutData(new GridData(GridData.FILL_VERTICAL));

 		final Button addButton= new Button(buttons, SWT.PUSH);
 		addButton.setText(RefactoringMessages.ExtractSupertypeMemberPage_add_button_label);
 		addButton.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
 		SWTUtil.setButtonDimensionHint(addButton);
 		addButton.addSelectionListener(new SelectionAdapter() {

 			public void widgetSelected(final SelectionEvent event) {
 				try {
 					computeCandidateTypes();
 				} catch (InterruptedException exception) {
 					return;
 				}
 				final LinkedList list= new LinkedList(Arrays.asList(fCandidateTypes));
 				for (final Iterator outer= list.iterator(); outer.hasNext();) {
 					final IType first= (IType) outer.next();
 					for (final Iterator inner= fTypesToExtract.iterator(); inner.hasNext();) {
 						final IType second= (IType) inner.next();
 						if (second.getFullyQualifiedName().equals(first.getFullyQualifiedName()))
 							outer.remove();
 					}
 				}
 				final SupertypeSelectionDialog dialog= new SupertypeSelectionDialog(getShell());
 				dialog.create();
 				dialog.setInput(list.toArray());
 				final int result= dialog.open();
 				if (result == Window.OK) {
 					final Object[] objects= dialog.getResult();
 					if (objects != null && objects.length > 0) {
 						for (int index= 0; index < objects.length; index++) {
 							fTypesToExtract.add(objects[index]);
 						}
 						fTableViewer.setInput(fTypesToExtract.toArray());
 						handleTypesChanged();
 					}
 				}
 			}
 		});

 		final Button removeButton= new Button(buttons, SWT.PUSH);
 		removeButton.setText(RefactoringMessages.ExtractSupertypeMemberPage_remove_button_label);
 		removeButton.setEnabled(fCandidateTypes.length > 0 && !fTableViewer.getSelection().isEmpty());
 		removeButton.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
 		SWTUtil.setButtonDimensionHint(removeButton);
 		removeButton.addSelectionListener(new SelectionAdapter() {

 			public void widgetSelected(final SelectionEvent event) {
 				final IStructuredSelection selection= (IStructuredSelection) fTableViewer.getSelection();
 				if (!selection.isEmpty()) {
 					final IType declaring= getDeclaringType();
 					for (final Iterator iterator= selection.iterator(); iterator.hasNext();) {
 						final Object element= iterator.next();
 						if (!declaring.equals(element))
 							fTypesToExtract.remove(element);
 					}
 					fTableViewer.setInput(fTypesToExtract.toArray());
 					handleTypesChanged();
 				}
 			}
 		});
 		fTableViewer.addSelectionChangedListener(new ISelectionChangedListener() {

 			public void selectionChanged(final SelectionChangedEvent event) {
 				final IStructuredSelection selection= (IStructuredSelection) fTableViewer.getSelection();
 				if (selection.isEmpty()) {
 					removeButton.setEnabled(false);
 					return;
 				} else {
 					final Object[] elements= selection.toArray();
 					if (elements.length == 1 && elements[0].equals(getDeclaringType())) {
 						removeButton.setEnabled(false);
 						return;
 					}
 				}
 				removeButton.setEnabled(true);
 			}
 		});
 	}

 	/**
 	 * {@inheritDoc}
 	 */
 	public void createControl(final Composite parent) {
 		final Composite composite= new Composite(parent, SWT.NONE);
 		final GridLayout layout= new GridLayout();
 		layout.numColumns= 2;
 		composite.setLayout(layout);
 		createSuperTypeField(composite);
 		createSpacer(composite);
 		createSuperTypeCheckbox(composite);
 		createInstanceOfCheckbox(composite, layout.marginWidth);
 		createStubCheckbox(composite);
 		createSuperTypeControl(composite);
 		createSpacer(composite);
 		createMemberTableLabel(composite);
 		createMemberTableComposite(composite);
 		createStatusLine(composite);

 		setControl(composite);
 		Dialog.applyDialogFont(composite);
 		initializeEnablement();
 		initializeCheckboxes();
 		PlatformUI.getWorkbench().getHelpSystem().setHelp(getControl(), IJavaHelpContextIds.EXTRACT_SUPERTYPE_WIZARD_PAGE);
 	}

 	/**
 	 * {@inheritDoc}
 	 */
 	protected void createSuperTypeControl(final Composite parent) {
 		try {
 			createSuperTypeList(parent);
 		} catch (JavaModelException exception) {
 			ExceptionHandler.handle(exception, getShell(), RefactoringMessages.ExtractSupertypeMemberPage_extract_supertype, RefactoringMessages.PullUpInputPage_exception);
 		}
 	}

 	/**
 	 * Creates the super type field.
 	 *
 	 * @param parent
 	 *            the parent control
 	 */
 	protected void createSuperTypeField(final Composite parent) {
 		final Label label= new Label(parent, SWT.NONE);
 		label.setText(RefactoringMessages.ExtractSupertypeMemberPage_name_label);
 		label.setLayoutData(new GridData());

 		fNameField= new Text(parent, SWT.BORDER);
 		fNameField.addModifyListener(new ModifyListener() {

 			public void modifyText(ModifyEvent e) {
 				handleNameChanged(fNameField.getText());
 			}
 		});
 		fNameField.setLayoutData(new GridData(GridData.FILL, GridData.CENTER, true, false));
 		TextFieldNavigationHandler.install(fNameField);
 	}

 	/**
 	 * Creates the super type list.
 	 *
 	 * @param parent
 	 *            the parent control
 	 */
 	protected void createSuperTypeList(final Composite parent) throws JavaModelException {
 		createSpacer(parent);

 		final Label label= new Label(parent, SWT.NONE);
 		label.setText(RefactoringMessages.ExtractSupertypeMemberPage_types_list_caption);
 		GridData data= new GridData();
 		data.horizontalSpan= 2;
 		label.setLayoutData(data);

 		final Composite composite= new Composite(parent, SWT.NONE);
 		final GridLayout layout= new GridLayout();
 		layout.numColumns= 2;
 		layout.marginWidth= 0;
 		layout.marginHeight= 0;
 		composite.setLayout(layout);
 		data= new GridData(GridData.FILL_BOTH);
 		data.horizontalSpan= 2;
 		composite.setLayoutData(data);

 		fTableViewer= new TableViewer(composite, SWT.MULTI | SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL);
 		data= new GridData(GridData.FILL_BOTH);
 		data.heightHint= SWTUtil.getTableHeightHint(fTableViewer.getTable(), 3);
 		fTableViewer.getTable().setLayoutData(data);
 		fTableViewer.setLabelProvider(createLabelProvider());
 		fTableViewer.setContentProvider(new ArrayContentProvider());
 		fTableViewer.setSorter(new JavaElementSorter());
 		fTypesToExtract.add(getDeclaringType());
 		fTableViewer.setInput(fTypesToExtract.toArray());

 		createButtonComposite(composite);
 	}

 	/**
 	 * {@inheritDoc}
 	 */
 	protected String getCreateStubsButtonLabel() {
 		return RefactoringMessages.ExtractSupertypeMemberPage_create_stubs_label;
 	}

 	/**
 	 * {@inheritDoc}
 	 */
 	protected String getDeclareAbstractActionLabel() {
 		return RefactoringMessages.ExtractSupertypeMemberPage_declare_abstract;
 	}

 	/**
 	 * Returns the declaring type.
 	 *
 	 * @return the declaring type
 	 */
 	public IType getDeclaringType() {
 		return getProcessor().getDeclaringType();
 	}

 	/**
 	 * {@inheritDoc}
 	 */
 	public IType getDestinationType() {
 		return getProcessor().computeExtractedType(fNameField.getText());
 	}

 	/**
 	 * Returns the extract supertype refactoring.
 	 */
 	public ExtractSupertypeRefactoring getExtractSuperTypeRefactoring() {
 		return (ExtractSupertypeRefactoring) getRefactoring();
 	}

 	/**
 	 * {@inheritDoc}
 	 */
 	protected String getInstanceofButtonLabel() {
 		return RefactoringMessages.ExtractSupertypeMemberPage_use_supertype_label;
 	}

 	/**
 	 * {@inheritDoc}
 	 */
 	protected String getNoMembersMessage() {
 		return RefactoringMessages.ExtractSupertypeMemberPage_no_members_selected;
 	}

 	/**
 	 * Returns the refactoring processor.
 	 *
 	 * @return the refactoring processor
 	 */
 	protected ExtractSupertypeProcessor getProcessor() {
 		return getExtractSuperTypeRefactoring().getExtractSupertypeProcessor();
 	}

 	/**
 	 * {@inheritDoc}
 	 */
 	protected String getPullUpActionLabel() {
 		return RefactoringMessages.ExtractSupertypeMemberPage_extract;
 	}

 	/**
 	 * {@inheritDoc}
 	 */
 	protected String getReplaceButtonLabel() {
 		return RefactoringMessages.ExtractSupertypeMemberPage_use_instanceof_label;
 	}

 	/**
 	 * {@inheritDoc}
 	 */
 	protected int getTableRowCount() {
 		return 6;
 	}

 	/**
 	 * Handles the name changed event.
 	 *
 	 * @param name
 	 *            the name
 	 */
 	protected void handleNameChanged(final String name) {
 		if (name != null)
 			getProcessor().setTypeName(name);
 		checkPageCompletionStatus(true);
 	}

 	/**
 	 * Handles the types changed event.
 	 */
 	protected void handleTypesChanged() {
 		getProcessor().setTypesToExtract((IType[]) fTypesToExtract.toArray(new IType[fTypesToExtract.size()]));
 	}

 	/**
 	 * {@inheritDoc}
 	 */
 	public void setVisible(final boolean visible) {
 		super.setVisible(visible);
 		if (visible) {
 			fNameField.setFocus();
 			getProcessor().resetChanges();
 		}
 	}
 }
	/*******************************************************************************
	* Copyright (c) 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 Corporation - initial API and implementation
	*******************************************************************************/
	package org.eclipse.jdt.internal.ui.refactoring;

	import com.ibm.icu.text.Collator;

	import java.lang.reflect.InvocationTargetException;
	import java.util.Arrays;
	import java.util.HashSet;
	import java.util.Iterator;
	import java.util.LinkedList;
	import java.util.Set;

	import org.eclipse.core.runtime.Assert;
	import org.eclipse.core.runtime.IProgressMonitor;
	import org.eclipse.core.runtime.OperationCanceledException;

	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.ModifyEvent;
	import org.eclipse.swt.events.ModifyListener;
	import org.eclipse.swt.events.SelectionAdapter;
	import org.eclipse.swt.events.SelectionEvent;
	import org.eclipse.swt.graphics.Image;
	import org.eclipse.swt.layout.GridData;
	import org.eclipse.swt.layout.GridLayout;
	import org.eclipse.swt.widgets.Button;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.Control;
	import org.eclipse.swt.widgets.Label;
	import org.eclipse.swt.widgets.Shell;
	import org.eclipse.swt.widgets.Text;

	import org.eclipse.jface.dialogs.Dialog;
	import org.eclipse.jface.operation.IRunnableWithProgress;
	import org.eclipse.jface.viewers.ArrayContentProvider;
	import org.eclipse.jface.viewers.DoubleClickEvent;
	import org.eclipse.jface.viewers.IDoubleClickListener;
	import org.eclipse.jface.viewers.ILabelProvider;
	import org.eclipse.jface.viewers.ISelectionChangedListener;
	import org.eclipse.jface.viewers.IStructuredSelection;
	import org.eclipse.jface.viewers.ITableLabelProvider;
	import org.eclipse.jface.viewers.SelectionChangedEvent;
	import org.eclipse.jface.viewers.TableViewer;
	import org.eclipse.jface.viewers.Viewer;
	import org.eclipse.jface.viewers.ViewerSorter;
	import org.eclipse.jface.window.Window;

	import org.eclipse.ui.PlatformUI;
	import org.eclipse.ui.dialogs.SelectionDialog;

	import org.eclipse.ltk.core.refactoring.RefactoringStatus;

	import org.eclipse.jdt.core.IType;
	import org.eclipse.jdt.core.JavaModelException;

	import org.eclipse.jdt.internal.corext.refactoring.structure.ExtractSupertypeProcessor;
	import org.eclipse.jdt.internal.corext.refactoring.structure.ExtractSupertypeRefactoring;

	import org.eclipse.jdt.ui.JavaElementLabels;
	import org.eclipse.jdt.ui.JavaElementSorter;

	import org.eclipse.jdt.internal.ui.IJavaHelpContextIds;
	import org.eclipse.jdt.internal.ui.dialogs.TextFieldNavigationHandler;
	import org.eclipse.jdt.internal.ui.util.ExceptionHandler;
	import org.eclipse.jdt.internal.ui.util.SWTUtil;
	import org.eclipse.jdt.internal.ui.viewsupport.AppearanceAwareLabelProvider;
	import org.eclipse.jdt.internal.ui.viewsupport.JavaElementImageProvider;

	/**
	* Wizard page for the extract supertype refactoring, which, apart from pull up
	* facilities, also allows to specify the types where to extract the supertype.
	*
	* @since 3.2
	*/
	public final class ExtractSupertypeMemberPage extends PullUpMemberPage {

	/** Dialog to select supertypes */
	private static class SupertypeSelectionDialog extends SelectionDialog {

	/** The table viewer */
	private TableViewer fViewer;

	/**
	* Creates a new supertype selection dialog.
	*
	* @param shell
	* the parent shell
	*/
	public SupertypeSelectionDialog(final Shell shell) {
	super(shell);
	}

	/**
	* {@inheritDoc}
	*/
	public void create() {
	setShellStyle(SWT.DIALOG_TRIM \| SWT.RESIZE);
	super.create();
	getShell().setText(RefactoringMessages.ExtractSupertypeMemberPage_choose_type_caption);
	}

	/**
	* {@inheritDoc}
	*/
	protected Control createDialogArea(final Composite composite) {
	Assert.isNotNull(composite);
	setMessage(RefactoringMessages.ExtractSupertypeMemberPage_choose_type_message);
	final Composite control= (Composite) super.createDialogArea(composite);
	createMessageArea(control);
	fViewer= new TableViewer(control, SWT.MULTI \| SWT.H_SCROLL \| SWT.V_SCROLL \| SWT.BORDER);
	fViewer.setLabelProvider(createLabelProvider());
	fViewer.setContentProvider(new ArrayContentProvider());
	fViewer.setSorter(new SupertypeSelectionViewerSorter());
	fViewer.addSelectionChangedListener(new ISelectionChangedListener() {

	public void selectionChanged(final SelectionChangedEvent event) {
	setSelectionResult(((IStructuredSelection) fViewer.getSelection()).toArray());
	}
	});
	fViewer.addDoubleClickListener(new IDoubleClickListener() {

	public void doubleClick(final DoubleClickEvent event) {
	setSelectionResult(((IStructuredSelection) fViewer.getSelection()).toArray());
	close();
	}
	});
	final GridData data= new GridData(GridData.FILL_BOTH);
	data.heightHint= convertHeightInCharsToPixels(15);
	data.widthHint= convertWidthInCharsToPixels(55);
	fViewer.getTable().setLayoutData(data);
	applyDialogFont(control);
	return control;
	}

	/**
	* Sets the input of this dialog.
	*
	* @param object
	* the input
	*/
	public void setInput(final Object object) {
	fViewer.setInput(object);
	}
	}

	/** The label provider */
	private static class SupertypeSelectionLabelProvider extends AppearanceAwareLabelProvider implements ITableLabelProvider {

	/**
	* Creates a new supertype selection label provider.
	*
	* @param textFlags
	* the text flags
	* @param imageFlags
	* the image flags
	*/
	public SupertypeSelectionLabelProvider(final long textFlags, final int imageFlags) {
	super(textFlags, imageFlags);
	}

	/**
	* {@inheritDoc}
	*/
	public Image getColumnImage(final Object element, final int index) {
	return getImage(element);
	}

	/**
	* {@inheritDoc}
	*/
	public String getColumnText(final Object element, final int index) {
	return getText(element);
	}
	}

	/** The viewer sorter */
	private static class SupertypeSelectionViewerSorter extends ViewerSorter {

	/**
	* {@inheritDoc}
	*/
	public int compare(final Viewer viewer, final Object first, final Object second) {
	final IType predecessor= (IType) first;
	final IType successor= (IType) second;
	return Collator.getInstance().compare(predecessor.getElementName(), successor.getElementName());
	}
	}

	/**
	* Creates a label provider for a type list.
	*
	* @return a label provider
	*/
	private static ILabelProvider createLabelProvider() {
	return new SupertypeSelectionLabelProvider(JavaElementLabels.T_TYPE_PARAMETERS \| JavaElementLabels.T_POST_QUALIFIED, JavaElementImageProvider.OVERLAY_ICONS);
	}

	/** The supertype name field */
	private Text fNameField;

	/** The table viewer */
	private TableViewer fTableViewer;

	/** The types to extract */
	private final Set fTypesToExtract= new HashSet(2);

	/**
	* Creates a new extract supertype member page.
	*
	* @param name
	* the page name
	* @param page
	* the method page
	*/
	public ExtractSupertypeMemberPage(final String name, final ExtractSupertypeMethodPage page) {
	super(name, page);
	setDescription(RefactoringMessages.ExtractSupertypeMemberPage_page_title);
	METHOD_LABELS[PULL_UP_ACTION]= RefactoringMessages.ExtractSupertypeMemberPage_extract;
	METHOD_LABELS[DECLARE_ABSTRACT_ACTION]= RefactoringMessages.ExtractSupertypeMemberPage_declare_abstract;
	TYPE_LABELS[PULL_UP_ACTION]= RefactoringMessages.ExtractSupertypeMemberPage_extract;
	}

	/**
	* {@inheritDoc}
	*/
	protected void checkPageCompletionStatus(final boolean display) {
	final RefactoringStatus status= getProcessor().checkExtractedCompilationUnit();
	setMessage(null);
	if (display)
	setPageComplete(status);
	else
	setPageComplete(!status.hasFatalError());
	fSuccessorPage.fireSettingsChanged();
	}

	/**
	* Computes the candidate types.
	*
	* @throws InterruptedException
	* if the computation has been interrupted
	*/
	protected void computeCandidateTypes() throws InterruptedException {
	if (fCandidateTypes != null && fCandidateTypes.length > 0)
	return;
	try {
	getWizard().getContainer().run(true, true, new IRunnableWithProgress() {

	public void run(final IProgressMonitor monitor) throws InvocationTargetException {
	try {
	fCandidateTypes= getProcessor().getCandidateTypes(new RefactoringStatus(), monitor);
	} finally {
	monitor.done();
	}
	}
	});
	} catch (InvocationTargetException exception) {
	ExceptionHandler.handle(exception, getShell(), RefactoringMessages.ExtractSupertypeMemberPage_extract_supertype, RefactoringMessages.PullUpInputPage_exception);
	} catch (InterruptedException exception) {
	fCandidateTypes= new IType[0];
	throw new InterruptedException();
	} catch (OperationCanceledException exception) {
	fCandidateTypes= new IType[0];
	}
	}

	/**
	* Creates the button composite.
	*
	* @param parent
	* the parent control
	*/
	protected void createButtonComposite(final Composite parent) {
	final Composite buttons= new Composite(parent, SWT.NONE);
	final GridLayout layout= new GridLayout();
	layout.marginHeight= 0;
	layout.marginWidth= 0;
	buttons.setLayout(layout);
	buttons.setLayoutData(new GridData(GridData.FILL_VERTICAL));

	final Button addButton= new Button(buttons, SWT.PUSH);
	addButton.setText(RefactoringMessages.ExtractSupertypeMemberPage_add_button_label);
	addButton.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
	SWTUtil.setButtonDimensionHint(addButton);
	addButton.addSelectionListener(new SelectionAdapter() {

	public void widgetSelected(final SelectionEvent event) {
	try {
	computeCandidateTypes();
	} catch (InterruptedException exception) {
	return;
	}
	final LinkedList list= new LinkedList(Arrays.asList(fCandidateTypes));
	for (final Iterator outer= list.iterator(); outer.hasNext();) {
	final IType first= (IType) outer.next();
	for (final Iterator inner= fTypesToExtract.iterator(); inner.hasNext();) {
	final IType second= (IType) inner.next();
	if (second.getFullyQualifiedName().equals(first.getFullyQualifiedName()))
	outer.remove();
	}
	}
	final SupertypeSelectionDialog dialog= new SupertypeSelectionDialog(getShell());
	dialog.create();
	dialog.setInput(list.toArray());
	final int result= dialog.open();
	if (result == Window.OK) {
	final Object[] objects= dialog.getResult();
	if (objects != null && objects.length > 0) {
	for (int index= 0; index < objects.length; index++) {
	fTypesToExtract.add(objects[index]);
	}
	fTableViewer.setInput(fTypesToExtract.toArray());
	handleTypesChanged();
	}
	}
	}
	});

	final Button removeButton= new Button(buttons, SWT.PUSH);
	removeButton.setText(RefactoringMessages.ExtractSupertypeMemberPage_remove_button_label);
	removeButton.setEnabled(fCandidateTypes.length > 0 && !fTableViewer.getSelection().isEmpty());
	removeButton.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
	SWTUtil.setButtonDimensionHint(removeButton);
	removeButton.addSelectionListener(new SelectionAdapter() {

	public void widgetSelected(final SelectionEvent event) {
	final IStructuredSelection selection= (IStructuredSelection) fTableViewer.getSelection();
	if (!selection.isEmpty()) {
	final IType declaring= getDeclaringType();
	for (final Iterator iterator= selection.iterator(); iterator.hasNext();) {
	final Object element= iterator.next();
	if (!declaring.equals(element))
	fTypesToExtract.remove(element);
	}
	fTableViewer.setInput(fTypesToExtract.toArray());
	handleTypesChanged();
	}
	}
	});
	fTableViewer.addSelectionChangedListener(new ISelectionChangedListener() {

	public void selectionChanged(final SelectionChangedEvent event) {
	final IStructuredSelection selection= (IStructuredSelection) fTableViewer.getSelection();
	if (selection.isEmpty()) {
	removeButton.setEnabled(false);
	return;
	} else {
	final Object[] elements= selection.toArray();
	if (elements.length == 1 && elements[0].equals(getDeclaringType())) {
	removeButton.setEnabled(false);
	return;
	}
	}
	removeButton.setEnabled(true);
	}
	});
	}

	/**
	* {@inheritDoc}
	*/
	public void createControl(final Composite parent) {
	final Composite composite= new Composite(parent, SWT.NONE);
	final GridLayout layout= new GridLayout();
	layout.numColumns= 2;
	composite.setLayout(layout);
	createSuperTypeField(composite);
	createSpacer(composite);
	createSuperTypeCheckbox(composite);
	createInstanceOfCheckbox(composite, layout.marginWidth);
	createStubCheckbox(composite);
	createSuperTypeControl(composite);
	createSpacer(composite);
	createMemberTableLabel(composite);
	createMemberTableComposite(composite);
	createStatusLine(composite);

	setControl(composite);
	Dialog.applyDialogFont(composite);
	initializeEnablement();
	initializeCheckboxes();
	PlatformUI.getWorkbench().getHelpSystem().setHelp(getControl(), IJavaHelpContextIds.EXTRACT_SUPERTYPE_WIZARD_PAGE);
	}

	/**
	* {@inheritDoc}
	*/
	protected void createSuperTypeControl(final Composite parent) {
	try {
	createSuperTypeList(parent);
	} catch (JavaModelException exception) {
	ExceptionHandler.handle(exception, getShell(), RefactoringMessages.ExtractSupertypeMemberPage_extract_supertype, RefactoringMessages.PullUpInputPage_exception);
	}
	}

	/**
	* Creates the super type field.
	*
	* @param parent
	* the parent control
	*/
	protected void createSuperTypeField(final Composite parent) {
	final Label label= new Label(parent, SWT.NONE);
	label.setText(RefactoringMessages.ExtractSupertypeMemberPage_name_label);
	label.setLayoutData(new GridData());

	fNameField= new Text(parent, SWT.BORDER);
	fNameField.addModifyListener(new ModifyListener() {

	public void modifyText(ModifyEvent e) {
	handleNameChanged(fNameField.getText());
	}
	});
	fNameField.setLayoutData(new GridData(GridData.FILL, GridData.CENTER, true, false));
	TextFieldNavigationHandler.install(fNameField);
	}

	/**
	* Creates the super type list.
	*
	* @param parent
	* the parent control
	*/
	protected void createSuperTypeList(final Composite parent) throws JavaModelException {
	createSpacer(parent);

	final Label label= new Label(parent, SWT.NONE);
	label.setText(RefactoringMessages.ExtractSupertypeMemberPage_types_list_caption);
	GridData data= new GridData();
	data.horizontalSpan= 2;
	label.setLayoutData(data);

	final Composite composite= new Composite(parent, SWT.NONE);
	final GridLayout layout= new GridLayout();
	layout.numColumns= 2;
	layout.marginWidth= 0;
	layout.marginHeight= 0;
	composite.setLayout(layout);
	data= new GridData(GridData.FILL_BOTH);
	data.horizontalSpan= 2;
	composite.setLayoutData(data);

	fTableViewer= new TableViewer(composite, SWT.MULTI \| SWT.BORDER \| SWT.V_SCROLL \| SWT.H_SCROLL);
	data= new GridData(GridData.FILL_BOTH);
	data.heightHint= SWTUtil.getTableHeightHint(fTableViewer.getTable(), 3);
	fTableViewer.getTable().setLayoutData(data);
	fTableViewer.setLabelProvider(createLabelProvider());
	fTableViewer.setContentProvider(new ArrayContentProvider());
	fTableViewer.setSorter(new JavaElementSorter());
	fTypesToExtract.add(getDeclaringType());
	fTableViewer.setInput(fTypesToExtract.toArray());

	createButtonComposite(composite);
	}

	/**
	* {@inheritDoc}
	*/
	protected String getCreateStubsButtonLabel() {
	return RefactoringMessages.ExtractSupertypeMemberPage_create_stubs_label;
	}

	/**
	* {@inheritDoc}
	*/
	protected String getDeclareAbstractActionLabel() {
	return RefactoringMessages.ExtractSupertypeMemberPage_declare_abstract;
	}

	/**
	* Returns the declaring type.
	*
	* @return the declaring type
	*/
	public IType getDeclaringType() {
	return getProcessor().getDeclaringType();
	}

	/**
	* {@inheritDoc}
	*/
	public IType getDestinationType() {
	return getProcessor().computeExtractedType(fNameField.getText());
	}

	/**
	* Returns the extract supertype refactoring.
	*/
	public ExtractSupertypeRefactoring getExtractSuperTypeRefactoring() {
	return (ExtractSupertypeRefactoring) getRefactoring();
	}

	/**
	* {@inheritDoc}
	*/
	protected String getInstanceofButtonLabel() {
	return RefactoringMessages.ExtractSupertypeMemberPage_use_supertype_label;
	}

	/**
	* {@inheritDoc}
	*/
	protected String getNoMembersMessage() {
	return RefactoringMessages.ExtractSupertypeMemberPage_no_members_selected;
	}

	/**
	* Returns the refactoring processor.
	*
	* @return the refactoring processor
	*/
	protected ExtractSupertypeProcessor getProcessor() {
	return getExtractSuperTypeRefactoring().getExtractSupertypeProcessor();
	}

	/**
	* {@inheritDoc}
	*/
	protected String getPullUpActionLabel() {
	return RefactoringMessages.ExtractSupertypeMemberPage_extract;
	}

	/**
	* {@inheritDoc}
	*/
	protected String getReplaceButtonLabel() {
	return RefactoringMessages.ExtractSupertypeMemberPage_use_instanceof_label;
	}

	/**
	* {@inheritDoc}
	*/
	protected int getTableRowCount() {
	return 6;
	}

	/**
	* Handles the name changed event.
	*
	* @param name
	* the name
	*/
	protected void handleNameChanged(final String name) {
	if (name != null)
	getProcessor().setTypeName(name);
	checkPageCompletionStatus(true);
	}

	/**
	* Handles the types changed event.
	*/
	protected void handleTypesChanged() {
	getProcessor().setTypesToExtract((IType[]) fTypesToExtract.toArray(new IType[fTypesToExtract.size()]));
	}

	/**
	* {@inheritDoc}
	*/
	public void setVisible(final boolean visible) {
	super.setVisible(visible);
	if (visible) {
	fNameField.setFocus();
	getProcessor().resetChanges();
	}
	}
	}