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

 /*******************************************************************************
  * Copyright (c) 2000, 2016 IBM Corporation and others.
  *
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License 2.0
  * which accompanies this distribution, and is available at
  * https://www.eclipse.org/legal/epl-2.0/
  *
  * SPDX-License-Identifier: EPL-2.0
  *
  * Contributors:
  *     IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.jdt.internal.ui.refactoring;

 import java.util.ArrayList;
 import java.util.List;

 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.layout.GridData;
 import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.Button;
 import org.eclipse.swt.widgets.Combo;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Label;

 import org.eclipse.core.runtime.Assert;
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.core.runtime.Status;

 import org.eclipse.jface.dialogs.Dialog;
 import org.eclipse.jface.window.Window;
 import org.eclipse.jface.wizard.IWizardPage;

 import org.eclipse.ui.PlatformUI;

 import org.eclipse.ltk.core.refactoring.Refactoring;
 import org.eclipse.ltk.ui.refactoring.RefactoringWizard;
 import org.eclipse.ltk.ui.refactoring.UserInputWizardPage;

 import org.eclipse.jdt.core.IJavaElement;
 import org.eclipse.jdt.core.IJavaProject;
 import org.eclipse.jdt.core.IMember;
 import org.eclipse.jdt.core.IPackageFragment;
 import org.eclipse.jdt.core.IType;
 import org.eclipse.jdt.core.JavaModelException;
 import org.eclipse.jdt.core.search.IJavaSearchConstants;
 import org.eclipse.jdt.core.search.IJavaSearchScope;
 import org.eclipse.jdt.core.search.SearchEngine;

 import org.eclipse.jdt.internal.corext.refactoring.structure.MoveStaticMembersProcessor;
 import org.eclipse.jdt.internal.corext.util.JavaConventionsUtil;
 import org.eclipse.jdt.internal.corext.util.Messages;

 import org.eclipse.jdt.ui.JavaElementLabels;

 import org.eclipse.jdt.internal.ui.IJavaHelpContextIds;
 import org.eclipse.jdt.internal.ui.JavaPlugin;
 import org.eclipse.jdt.internal.ui.dialogs.FilteredTypesSelectionDialog;
 import org.eclipse.jdt.internal.ui.dialogs.TextFieldNavigationHandler;
 import org.eclipse.jdt.internal.ui.refactoring.contentassist.ControlContentAssistHelper;
 import org.eclipse.jdt.internal.ui.refactoring.contentassist.JavaTypeCompletionProcessor;
 import org.eclipse.jdt.internal.ui.util.ExceptionHandler;
 import org.eclipse.jdt.internal.ui.util.SWTUtil;
 import org.eclipse.jdt.internal.core.manipulation.util.BasicElementLabels;

 public class MoveMembersWizard extends RefactoringWizard {

 	private final MoveStaticMembersProcessor fProcessor;

 	public MoveMembersWizard(MoveStaticMembersProcessor processor, Refactoring ref) {
 		super(ref, DIALOG_BASED_USER_INTERFACE);
 		fProcessor= processor;
 		setDefaultPageTitle(RefactoringMessages.MoveMembersWizard_page_title);
 	}

 	/* non java-doc
 	 * @see RefactoringWizard#addUserInputPages
 	 */
 	@Override
 	protected void addUserInputPages(){
 		addPage(new MoveMembersInputPage(fProcessor));
 	}

 	private static class MoveMembersInputPage extends UserInputWizardPage {

 		public static final String PAGE_NAME= "MoveMembersInputPage"; //$NON-NLS-1$
 		private static final long LABEL_FLAGS= JavaElementLabels.ALL_DEFAULT;

 		private Combo fDestinationField;
 		private Button fLeaveDelegateCheckBox;
 		private Button fDeprecateDelegateCheckBox;
 		private static final int MRU_COUNT= 10;
 		private static List<String> fgMruDestinations= new ArrayList<>(MRU_COUNT);
 		private final MoveStaticMembersProcessor fProcessor;

 		public MoveMembersInputPage(MoveStaticMembersProcessor processor) {
 			super(PAGE_NAME);
 			fProcessor= processor;
 		}

 		@Override
 		public void setVisible(boolean visible){
 			if (visible){
 				IMember[] membersToMove= getMoveProcessor().getMembersToMove();
 				int membersToMoveCount= membersToMove.length;
 				String label= JavaElementLabels.getElementLabel(getMoveProcessor().getDeclaringType(), JavaElementLabels.ALL_FULLY_QUALIFIED);
 				String message= membersToMoveCount == 1 ? Messages.format(RefactoringMessages.MoveMembersInputPage_descriptionKey_singular, new String[] {
 						JavaElementLabels.getTextLabel(membersToMove[0], JavaElementLabels.ALL_FULLY_QUALIFIED), label }) : Messages.format(
 						RefactoringMessages.MoveMembersInputPage_descriptionKey_plural, new String[] { Integer.toString(membersToMoveCount), label });
 				setDescription(message);
 			}
 			super.setVisible(visible);
 		}

 		@Override
 		public void createControl(Composite parent) {
 			Composite composite= new Composite(parent, SWT.NONE);
 			GridLayout layout= new GridLayout();
 			layout.numColumns= 2;
 			composite.setLayout(layout);

 			addLabel(composite);
 			addDestinationControls(composite);
 			fLeaveDelegateCheckBox= DelegateUIHelper.generateLeaveDelegateCheckbox(composite, getRefactoring(), getMoveProcessor().getMembersToMove().length > 1);
 			GridData data= new GridData();
 			data.horizontalSpan= 2;
 			if (fLeaveDelegateCheckBox != null) {
 				fLeaveDelegateCheckBox.setLayoutData(data);
 				fDeprecateDelegateCheckBox= new Button(composite, SWT.CHECK);
 				data= new GridData();
 				data.horizontalAlignment= GridData.FILL;
 				data.horizontalIndent= (layout.marginWidth + fDeprecateDelegateCheckBox.computeSize(SWT.DEFAULT, SWT.DEFAULT).x);
 				data.horizontalSpan= 2;
 				fDeprecateDelegateCheckBox.setLayoutData(data);
 				fDeprecateDelegateCheckBox.setText(DelegateUIHelper.getDeprecateDelegateCheckBoxTitle());
 				fDeprecateDelegateCheckBox.setSelection(DelegateUIHelper.loadDeprecateDelegateSetting(getMoveProcessor()));
 				getMoveProcessor().setDeprecateDelegates(fDeprecateDelegateCheckBox.getSelection());
 				fDeprecateDelegateCheckBox.addSelectionListener(new SelectionAdapter() {
 					@Override
 					public void widgetSelected(SelectionEvent e) {
 						getMoveProcessor().setDeprecateDelegates(fDeprecateDelegateCheckBox.getSelection());
 					}
 				});
 				fDeprecateDelegateCheckBox.setEnabled(fLeaveDelegateCheckBox.getSelection());
 				fLeaveDelegateCheckBox.addSelectionListener(new SelectionAdapter() {
 					@Override
 					public void widgetSelected(SelectionEvent e) {
 						fDeprecateDelegateCheckBox.setEnabled(fLeaveDelegateCheckBox.getSelection());
 					}
 				});
 			}
 			setControl(composite);
 			Dialog.applyDialogFont(composite);
 			PlatformUI.getWorkbench().getHelpSystem().setHelp(composite, IJavaHelpContextIds.MOVE_MEMBERS_WIZARD_PAGE);
 		}

 		@Override
 		public void dispose() {
 			DelegateUIHelper.saveLeaveDelegateSetting(fLeaveDelegateCheckBox);
 			DelegateUIHelper.saveDeprecateDelegateSetting(fDeprecateDelegateCheckBox);
 			super.dispose();
 		}

 		private void addLabel(Composite parent) {
 			Label label= new Label(parent, SWT.NONE);
 			IMember[] members= getMoveProcessor().getMembersToMove();
 			if (members.length == 1) {
 				label.setText(Messages.format(
 						RefactoringMessages.MoveMembersInputPage_destination_single,
 						JavaElementLabels.getElementLabel(members[0], LABEL_FLAGS)));
 			} else {
 				label.setText(Messages.format(
 						RefactoringMessages.MoveMembersInputPage_destination_multi,
 						String.valueOf(members.length)));
 			}
 			GridData gd= new GridData();
 			gd.horizontalSpan= 2;
 			label.setLayoutData(gd);
 		}

 		private void addDestinationControls(Composite composite) {
 			fDestinationField= new Combo(composite, SWT.SINGLE | SWT.BORDER);
 			SWTUtil.setDefaultVisibleItemCount(fDestinationField);
 			fDestinationField.setFocus();
 			fDestinationField.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
 			fDestinationField.setItems(fgMruDestinations.toArray(new String[fgMruDestinations.size()]));
 			fDestinationField.addModifyListener(new ModifyListener(){
 				@Override
 				public void modifyText(ModifyEvent e) {
 					handleDestinationChanged();
 				}
 				private void handleDestinationChanged() {
 					IType declaring= getMoveProcessor().getDeclaringType();
 					IJavaProject javaProject= declaring.getJavaProject();
 					IStatus status= JavaConventionsUtil.validateJavaTypeName(fDestinationField.getText(), javaProject);
 					if (status.getSeverity() == IStatus.ERROR){
 						error(status.getMessage());
 					} else {
 						try {
 							IType resolvedType= javaProject.findType(fDestinationField.getText());
 							if (resolvedType == null)
 								resolvedType= javaProject.findType(declaring.getPackageFragment().getElementName(), fDestinationField.getText());
 							IStatus validationStatus= validateDestinationType(resolvedType, fDestinationField.getText());
 							if (validationStatus.isOK()){
 								setErrorMessage(null);
 								setPageComplete(true);
 							} else {
 								error(validationStatus.getMessage());
 							}
 						} catch(JavaModelException ex) {
 							JavaPlugin.log(ex); //no ui here
 							error(RefactoringMessages.MoveMembersInputPage_invalid_name);
 						}
 					}
 				}
 				private void error(String message){
 					setErrorMessage(message);
 					setPageComplete(false);
 				}
 			});
 			if (fgMruDestinations.size() > 0) {
 				fDestinationField.select(0);
 			} else {
 				setPageComplete(false);
 			}
 			JavaTypeCompletionProcessor processor= new JavaTypeCompletionProcessor(false, false, true);
 			IPackageFragment context= (IPackageFragment) getMoveProcessor().getDeclaringType().getAncestor(IJavaElement.PACKAGE_FRAGMENT);
 			processor.setPackageFragment(context);
 			ControlContentAssistHelper.createComboContentAssistant(fDestinationField, processor);
 			TextFieldNavigationHandler.install(fDestinationField);

 			Button button= new Button(composite, SWT.PUSH);
 			button.setText(RefactoringMessages.MoveMembersInputPage_browse);
 			button.setLayoutData(new GridData());
 			SWTUtil.setButtonDimensionHint(button);
 			button.addSelectionListener(new SelectionAdapter(){
 				@Override
 				public void widgetSelected(SelectionEvent e) {
 					openTypeSelectionDialog();
 				}
 			});
 		}

 		@Override
 		protected boolean performFinish() {
 			initializeRefactoring();
 			return super.performFinish();
 		}

 		@Override
 		public IWizardPage getNextPage() {
 			initializeRefactoring();
 			return super.getNextPage();
 		}

 		private void initializeRefactoring() {
 			try {
 				String destination= fDestinationField.getText();
 				if (!fgMruDestinations.remove(destination) && fgMruDestinations.size() >= MRU_COUNT)
 					fgMruDestinations.remove(fgMruDestinations.size() - 1);
 				fgMruDestinations.add(0, destination);

 				getMoveProcessor().setDestinationTypeFullyQualifiedName(destination);
 			} catch(JavaModelException e) {
 				ExceptionHandler.handle(e, getShell(), RefactoringMessages.MoveMembersInputPage_move_Member, RefactoringMessages.MoveMembersInputPage_exception);
 			}
 		}

 		private IJavaSearchScope createWorkspaceSourceScope(){
 			IJavaElement[] project= new IJavaElement[] { getMoveProcessor().getDeclaringType().getJavaProject() };
 			return SearchEngine.createJavaSearchScope(project, IJavaSearchScope.REFERENCED_PROJECTS | IJavaSearchScope.SOURCES);
 		}

 		private void openTypeSelectionDialog(){
 			int elementKinds= IJavaSearchConstants.TYPE;
 			final IJavaSearchScope scope= createWorkspaceSourceScope();
 			FilteredTypesSelectionDialog dialog= new FilteredTypesSelectionDialog(getShell(), false,
 				getWizard().getContainer(), scope, elementKinds);
 			dialog.setTitle(RefactoringMessages.MoveMembersInputPage_choose_Type);
 			dialog.setMessage(RefactoringMessages.MoveMembersInputPage_dialogMessage);
 			dialog.setValidator(selection -> {
 				Assert.isTrue(selection.length <= 1);
 				if (selection.length == 0)
 					return new Status(IStatus.ERROR, JavaPlugin.getPluginId(), IStatus.OK, RefactoringMessages.MoveMembersInputPage_Invalid_selection, null);
 				Object element= selection[0];
 				if (! (element instanceof IType))
 					return new Status(IStatus.ERROR, JavaPlugin.getPluginId(), IStatus.OK, RefactoringMessages.MoveMembersInputPage_Invalid_selection, null);
 				IType type= (IType)element;
 				return validateDestinationType(type, type.getElementName());
 			});
 			dialog.setInitialPattern(createInitialFilter());
 			if (dialog.open() == Window.CANCEL)
 				return;
 			IType firstResult= (IType)dialog.getFirstResult();
 			fDestinationField.setText(firstResult.getFullyQualifiedName('.'));
 		}

 		private String createInitialFilter() {
 			if (! fDestinationField.getText().trim().equals("")) //$NON-NLS-1$
 				return fDestinationField.getText();
 			else
 				return getMoveProcessor().getDeclaringType().getElementName();
 		}

 		private static IStatus validateDestinationType(IType type, String typeName){
 			if (type == null || ! type.exists())
 				return new Status(IStatus.ERROR, JavaPlugin.getPluginId(), IStatus.OK, Messages.format(RefactoringMessages.MoveMembersInputPage_not_found, BasicElementLabels.getJavaElementName(typeName)), null);
 			if (type.isBinary())
 				return new Status(IStatus.ERROR, JavaPlugin.getPluginId(), IStatus.OK, RefactoringMessages.MoveMembersInputPage_no_binary, null);
 			return Status.OK_STATUS;
 		}

 		private MoveStaticMembersProcessor getMoveProcessor() {
 			return fProcessor;
 		}
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2000, 2016 IBM Corporation and others.
	*
	* This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License 2.0
	* which accompanies this distribution, and is available at
	* https://www.eclipse.org/legal/epl-2.0/
	*
	* SPDX-License-Identifier: EPL-2.0
	*
	* Contributors:
	* IBM Corporation - initial API and implementation
	*******************************************************************************/
	package org.eclipse.jdt.internal.ui.refactoring;

	import java.util.ArrayList;
	import java.util.List;

	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.layout.GridData;
	import org.eclipse.swt.layout.GridLayout;
	import org.eclipse.swt.widgets.Button;
	import org.eclipse.swt.widgets.Combo;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.Label;

	import org.eclipse.core.runtime.Assert;
	import org.eclipse.core.runtime.IStatus;
	import org.eclipse.core.runtime.Status;

	import org.eclipse.jface.dialogs.Dialog;
	import org.eclipse.jface.window.Window;
	import org.eclipse.jface.wizard.IWizardPage;

	import org.eclipse.ui.PlatformUI;

	import org.eclipse.ltk.core.refactoring.Refactoring;
	import org.eclipse.ltk.ui.refactoring.RefactoringWizard;
	import org.eclipse.ltk.ui.refactoring.UserInputWizardPage;

	import org.eclipse.jdt.core.IJavaElement;
	import org.eclipse.jdt.core.IJavaProject;
	import org.eclipse.jdt.core.IMember;
	import org.eclipse.jdt.core.IPackageFragment;
	import org.eclipse.jdt.core.IType;
	import org.eclipse.jdt.core.JavaModelException;
	import org.eclipse.jdt.core.search.IJavaSearchConstants;
	import org.eclipse.jdt.core.search.IJavaSearchScope;
	import org.eclipse.jdt.core.search.SearchEngine;

	import org.eclipse.jdt.internal.corext.refactoring.structure.MoveStaticMembersProcessor;
	import org.eclipse.jdt.internal.corext.util.JavaConventionsUtil;
	import org.eclipse.jdt.internal.corext.util.Messages;

	import org.eclipse.jdt.ui.JavaElementLabels;

	import org.eclipse.jdt.internal.ui.IJavaHelpContextIds;
	import org.eclipse.jdt.internal.ui.JavaPlugin;
	import org.eclipse.jdt.internal.ui.dialogs.FilteredTypesSelectionDialog;
	import org.eclipse.jdt.internal.ui.dialogs.TextFieldNavigationHandler;
	import org.eclipse.jdt.internal.ui.refactoring.contentassist.ControlContentAssistHelper;
	import org.eclipse.jdt.internal.ui.refactoring.contentassist.JavaTypeCompletionProcessor;
	import org.eclipse.jdt.internal.ui.util.ExceptionHandler;
	import org.eclipse.jdt.internal.ui.util.SWTUtil;
	import org.eclipse.jdt.internal.core.manipulation.util.BasicElementLabels;

	public class MoveMembersWizard extends RefactoringWizard {

	private final MoveStaticMembersProcessor fProcessor;

	public MoveMembersWizard(MoveStaticMembersProcessor processor, Refactoring ref) {
	super(ref, DIALOG_BASED_USER_INTERFACE);
	fProcessor= processor;
	setDefaultPageTitle(RefactoringMessages.MoveMembersWizard_page_title);
	}

	/* non java-doc
	* @see RefactoringWizard#addUserInputPages
	*/
	@Override
	protected void addUserInputPages(){
	addPage(new MoveMembersInputPage(fProcessor));
	}

	private static class MoveMembersInputPage extends UserInputWizardPage {

	public static final String PAGE_NAME= "MoveMembersInputPage"; //$NON-NLS-1$
	private static final long LABEL_FLAGS= JavaElementLabels.ALL_DEFAULT;

	private Combo fDestinationField;
	private Button fLeaveDelegateCheckBox;
	private Button fDeprecateDelegateCheckBox;
	private static final int MRU_COUNT= 10;
	private static List<String> fgMruDestinations= new ArrayList<>(MRU_COUNT);
	private final MoveStaticMembersProcessor fProcessor;

	public MoveMembersInputPage(MoveStaticMembersProcessor processor) {
	super(PAGE_NAME);
	fProcessor= processor;
	}

	@Override
	public void setVisible(boolean visible){
	if (visible){
	IMember[] membersToMove= getMoveProcessor().getMembersToMove();
	int membersToMoveCount= membersToMove.length;
	String label= JavaElementLabels.getElementLabel(getMoveProcessor().getDeclaringType(), JavaElementLabels.ALL_FULLY_QUALIFIED);
	String message= membersToMoveCount == 1 ? Messages.format(RefactoringMessages.MoveMembersInputPage_descriptionKey_singular, new String[] {
	JavaElementLabels.getTextLabel(membersToMove[0], JavaElementLabels.ALL_FULLY_QUALIFIED), label }) : Messages.format(
	RefactoringMessages.MoveMembersInputPage_descriptionKey_plural, new String[] { Integer.toString(membersToMoveCount), label });
	setDescription(message);
	}
	super.setVisible(visible);
	}

	@Override
	public void createControl(Composite parent) {
	Composite composite= new Composite(parent, SWT.NONE);
	GridLayout layout= new GridLayout();
	layout.numColumns= 2;
	composite.setLayout(layout);

	addLabel(composite);
	addDestinationControls(composite);
	fLeaveDelegateCheckBox= DelegateUIHelper.generateLeaveDelegateCheckbox(composite, getRefactoring(), getMoveProcessor().getMembersToMove().length > 1);
	GridData data= new GridData();
	data.horizontalSpan= 2;
	if (fLeaveDelegateCheckBox != null) {
	fLeaveDelegateCheckBox.setLayoutData(data);
	fDeprecateDelegateCheckBox= new Button(composite, SWT.CHECK);
	data= new GridData();
	data.horizontalAlignment= GridData.FILL;
	data.horizontalIndent= (layout.marginWidth + fDeprecateDelegateCheckBox.computeSize(SWT.DEFAULT, SWT.DEFAULT).x);
	data.horizontalSpan= 2;
	fDeprecateDelegateCheckBox.setLayoutData(data);
	fDeprecateDelegateCheckBox.setText(DelegateUIHelper.getDeprecateDelegateCheckBoxTitle());
	fDeprecateDelegateCheckBox.setSelection(DelegateUIHelper.loadDeprecateDelegateSetting(getMoveProcessor()));
	getMoveProcessor().setDeprecateDelegates(fDeprecateDelegateCheckBox.getSelection());
	fDeprecateDelegateCheckBox.addSelectionListener(new SelectionAdapter() {
	@Override
	public void widgetSelected(SelectionEvent e) {
	getMoveProcessor().setDeprecateDelegates(fDeprecateDelegateCheckBox.getSelection());
	}
	});
	fDeprecateDelegateCheckBox.setEnabled(fLeaveDelegateCheckBox.getSelection());
	fLeaveDelegateCheckBox.addSelectionListener(new SelectionAdapter() {
	@Override
	public void widgetSelected(SelectionEvent e) {
	fDeprecateDelegateCheckBox.setEnabled(fLeaveDelegateCheckBox.getSelection());
	}
	});
	}
	setControl(composite);
	Dialog.applyDialogFont(composite);
	PlatformUI.getWorkbench().getHelpSystem().setHelp(composite, IJavaHelpContextIds.MOVE_MEMBERS_WIZARD_PAGE);
	}

	@Override
	public void dispose() {
	DelegateUIHelper.saveLeaveDelegateSetting(fLeaveDelegateCheckBox);
	DelegateUIHelper.saveDeprecateDelegateSetting(fDeprecateDelegateCheckBox);
	super.dispose();
	}

	private void addLabel(Composite parent) {
	Label label= new Label(parent, SWT.NONE);
	IMember[] members= getMoveProcessor().getMembersToMove();
	if (members.length == 1) {
	label.setText(Messages.format(
	RefactoringMessages.MoveMembersInputPage_destination_single,
	JavaElementLabels.getElementLabel(members[0], LABEL_FLAGS)));
	} else {
	label.setText(Messages.format(
	RefactoringMessages.MoveMembersInputPage_destination_multi,
	String.valueOf(members.length)));
	}
	GridData gd= new GridData();
	gd.horizontalSpan= 2;
	label.setLayoutData(gd);
	}

	private void addDestinationControls(Composite composite) {
	fDestinationField= new Combo(composite, SWT.SINGLE \| SWT.BORDER);
	SWTUtil.setDefaultVisibleItemCount(fDestinationField);
	fDestinationField.setFocus();
	fDestinationField.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
	fDestinationField.setItems(fgMruDestinations.toArray(new String[fgMruDestinations.size()]));
	fDestinationField.addModifyListener(new ModifyListener(){
	@Override
	public void modifyText(ModifyEvent e) {
	handleDestinationChanged();
	}
	private void handleDestinationChanged() {
	IType declaring= getMoveProcessor().getDeclaringType();
	IJavaProject javaProject= declaring.getJavaProject();
	IStatus status= JavaConventionsUtil.validateJavaTypeName(fDestinationField.getText(), javaProject);
	if (status.getSeverity() == IStatus.ERROR){
	error(status.getMessage());
	} else {
	try {
	IType resolvedType= javaProject.findType(fDestinationField.getText());
	if (resolvedType == null)
	resolvedType= javaProject.findType(declaring.getPackageFragment().getElementName(), fDestinationField.getText());
	IStatus validationStatus= validateDestinationType(resolvedType, fDestinationField.getText());
	if (validationStatus.isOK()){
	setErrorMessage(null);
	setPageComplete(true);
	} else {
	error(validationStatus.getMessage());
	}
	} catch(JavaModelException ex) {
	JavaPlugin.log(ex); //no ui here
	error(RefactoringMessages.MoveMembersInputPage_invalid_name);
	}
	}
	}
	private void error(String message){
	setErrorMessage(message);
	setPageComplete(false);
	}
	});
	if (fgMruDestinations.size() > 0) {
	fDestinationField.select(0);
	} else {
	setPageComplete(false);
	}
	JavaTypeCompletionProcessor processor= new JavaTypeCompletionProcessor(false, false, true);
	IPackageFragment context= (IPackageFragment) getMoveProcessor().getDeclaringType().getAncestor(IJavaElement.PACKAGE_FRAGMENT);
	processor.setPackageFragment(context);
	ControlContentAssistHelper.createComboContentAssistant(fDestinationField, processor);
	TextFieldNavigationHandler.install(fDestinationField);

	Button button= new Button(composite, SWT.PUSH);
	button.setText(RefactoringMessages.MoveMembersInputPage_browse);
	button.setLayoutData(new GridData());
	SWTUtil.setButtonDimensionHint(button);
	button.addSelectionListener(new SelectionAdapter(){
	@Override
	public void widgetSelected(SelectionEvent e) {
	openTypeSelectionDialog();
	}
	});
	}

	@Override
	protected boolean performFinish() {
	initializeRefactoring();
	return super.performFinish();
	}

	@Override
	public IWizardPage getNextPage() {
	initializeRefactoring();
	return super.getNextPage();
	}

	private void initializeRefactoring() {
	try {
	String destination= fDestinationField.getText();
	if (!fgMruDestinations.remove(destination) && fgMruDestinations.size() >= MRU_COUNT)
	fgMruDestinations.remove(fgMruDestinations.size() - 1);
	fgMruDestinations.add(0, destination);

	getMoveProcessor().setDestinationTypeFullyQualifiedName(destination);
	} catch(JavaModelException e) {
	ExceptionHandler.handle(e, getShell(), RefactoringMessages.MoveMembersInputPage_move_Member, RefactoringMessages.MoveMembersInputPage_exception);
	}
	}

	private IJavaSearchScope createWorkspaceSourceScope(){
	IJavaElement[] project= new IJavaElement[] { getMoveProcessor().getDeclaringType().getJavaProject() };
	return SearchEngine.createJavaSearchScope(project, IJavaSearchScope.REFERENCED_PROJECTS \| IJavaSearchScope.SOURCES);
	}

	private void openTypeSelectionDialog(){
	int elementKinds= IJavaSearchConstants.TYPE;
	final IJavaSearchScope scope= createWorkspaceSourceScope();
	FilteredTypesSelectionDialog dialog= new FilteredTypesSelectionDialog(getShell(), false,
	getWizard().getContainer(), scope, elementKinds);
	dialog.setTitle(RefactoringMessages.MoveMembersInputPage_choose_Type);
	dialog.setMessage(RefactoringMessages.MoveMembersInputPage_dialogMessage);
	dialog.setValidator(selection -> {
	Assert.isTrue(selection.length <= 1);
	if (selection.length == 0)
	return new Status(IStatus.ERROR, JavaPlugin.getPluginId(), IStatus.OK, RefactoringMessages.MoveMembersInputPage_Invalid_selection, null);
	Object element= selection[0];
	if (! (element instanceof IType))
	return new Status(IStatus.ERROR, JavaPlugin.getPluginId(), IStatus.OK, RefactoringMessages.MoveMembersInputPage_Invalid_selection, null);
	IType type= (IType)element;
	return validateDestinationType(type, type.getElementName());
	});
	dialog.setInitialPattern(createInitialFilter());
	if (dialog.open() == Window.CANCEL)
	return;
	IType firstResult= (IType)dialog.getFirstResult();
	fDestinationField.setText(firstResult.getFullyQualifiedName('.'));
	}

	private String createInitialFilter() {
	if (! fDestinationField.getText().trim().equals("")) //$NON-NLS-1$
	return fDestinationField.getText();
	else
	return getMoveProcessor().getDeclaringType().getElementName();
	}

	private static IStatus validateDestinationType(IType type, String typeName){
	if (type == null \|\| ! type.exists())
	return new Status(IStatus.ERROR, JavaPlugin.getPluginId(), IStatus.OK, Messages.format(RefactoringMessages.MoveMembersInputPage_not_found, BasicElementLabels.getJavaElementName(typeName)), null);
	if (type.isBinary())
	return new Status(IStatus.ERROR, JavaPlugin.getPluginId(), IStatus.OK, RefactoringMessages.MoveMembersInputPage_no_binary, null);
	return Status.OK_STATUS;
	}

	private MoveStaticMembersProcessor getMoveProcessor() {
	return fProcessor;
	}
	}
	}