bundles/org.eclipse.ui.workbench/Eclipse UI/org/eclipse/ui/internal/dialogs/WizardNewProjectNameAndLocationPage.java - platform/eclipse.platform.ui - Git at Google

 package org.eclipse.ui.internal.dialogs;

 /**********************************************************************
 Copyright (c) 2002 IBM Corp. and others.
 All rights reserved.   This program and the accompanying materials
 are made available under the terms of the Common Public License v0.5
 which accompanies this distribution, and is available at
 http://www.eclipse.org/legal/cpl-v05.html

 Contributors:
 Sebastian Davids <sdavids@gmx.de> - Fix for bug 19346 - Dialog font should be
 activated and used by other components.
 *********************************************************************/
 import java.io.File;
 import org.eclipse.core.resources.IProject;
 import org.eclipse.core.resources.IProjectDescription;
 import org.eclipse.core.resources.IResource;
 import org.eclipse.core.resources.IWorkspace;
 import org.eclipse.core.resources.ResourcesPlugin;
 import org.eclipse.core.runtime.IPath;
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.core.runtime.Path;
 import org.eclipse.core.runtime.Platform;
 import org.eclipse.jface.wizard.WizardPage;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.SelectionAdapter;
 import org.eclipse.swt.events.SelectionEvent;
 import org.eclipse.swt.events.SelectionListener;
 import org.eclipse.swt.graphics.Font;
 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.DirectoryDialog;
 import org.eclipse.swt.widgets.Event;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Listener;
 import org.eclipse.swt.widgets.Text;
 import org.eclipse.ui.help.WorkbenchHelp;
 import org.eclipse.ui.internal.IHelpContextIds;
 import org.eclipse.ui.internal.WorkbenchMessages;
 import org.eclipse.ui.internal.WorkbenchPlugin;

 /**
  * First page for the new project creation wizard. This page
  * collects the name and location of the new project.
  * <p>
  * Example useage:
  * <pre>
  * mainPage = new WizardNewProjectNameAndLocationPage("wizardNewProjectNameAndLocationPage");
  * mainPage.setTitle("Project");
  * mainPage.setDescription("Create a new project.");
  * </pre>
  * </p>
  */
 public class WizardNewProjectNameAndLocationPage extends WizardPage {
 	// Whether to use default or custom project location
 	private boolean useDefaults = true;

 	// initial value stores
 	private String initialProjectFieldValue;
 	private IPath initialLocationFieldValue;

 	// the value the user has entered
 	private String customLocationFieldValue;

 	// widgets
 	private Text projectNameField;
 	private Text locationPathField;
 	private Label locationLabel;
 	private Button browseButton;

 	private Listener nameModifyListener = new Listener() {
 		public void handleEvent(Event e) {
 			setLocationForSelection();
 			setPageComplete(validatePage());
 		}
 	};

 	private Listener locationModifyListener = new Listener() {
 		public void handleEvent(Event e) {
 			setPageComplete(validatePage());
 		}
 	};

 	// constants
 	private static final int SIZING_TEXT_FIELD_WIDTH = 250;
 	private static final int SIZING_INDENTATION_WIDTH = 10;

 	/**
 	 * Creates a new project creation wizard page.
 	 *
 	 * @param pageName the name of this page
 	 */
 	public WizardNewProjectNameAndLocationPage(String pageName) {
 		super(pageName);
 		setPageComplete(false);
 		initialLocationFieldValue = Platform.getLocation();
 		customLocationFieldValue = ""; //$NON-NLS-1$
 	}

 	/* (non-Javadoc)
 	 * Method declared on IWizardPage
 	 */
 	public boolean canFlipToNextPage() {
 		// Already know there is a next page...
 		return isPageComplete();
 	}

 	/* (non-Javadoc)
 	 * Method declared on IDialogPage.
 	 */
 	public void createControl(Composite parent) {
 		Composite composite = new Composite(parent, SWT.NULL);
 		composite.setLayout(new GridLayout());
 		composite.setLayoutData(new GridData(GridData.FILL_BOTH));
 		composite.setFont(parent.getFont());

 		WorkbenchHelp.setHelp(composite, IHelpContextIds.NEW_PROJECT_WIZARD_PAGE);

 		createProjectNameGroup(composite);
 		createProjectLocationGroup(composite);

 		validatePage();

 		// Show description on opening
 		setErrorMessage(null);
 		setMessage(null);
 		setControl(composite);
 	}

 	/**
 	 * Creates the project location specification controls.
 	 *
 	 * @param parent the parent composite
 	 */
 	private final void createProjectLocationGroup(Composite parent) {
 		Font font = parent.getFont();
 		// project specification group
 		Composite projectGroup = new Composite(parent, SWT.NONE);
 		GridLayout layout = new GridLayout();
 		layout.numColumns = 3;
 		projectGroup.setLayout(layout);
 		projectGroup.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
 		projectGroup.setFont(font);

 		// new project label
 		Label projectContentsLabel = new Label(projectGroup, SWT.NONE);
 		projectContentsLabel.setFont(font);
 		projectContentsLabel.setText(WorkbenchMessages.getString("WizardNewProjectCreationPage.projectContentsLabel")); //$NON-NLS-1$

 		GridData labelData = new GridData();
 		labelData.horizontalSpan = 3;
 		projectContentsLabel.setLayoutData(labelData);

 		final Button useDefaultsButton = new Button(projectGroup, SWT.CHECK | SWT.RIGHT);
 		useDefaultsButton.setText(WorkbenchMessages.getString("WizardNewProjectCreationPage.useDefaultLabel")); //$NON-NLS-1$
 		useDefaultsButton.setSelection(useDefaults);
 		useDefaultsButton.setFont(font);

 		GridData buttonData = new GridData();
 		buttonData.horizontalSpan = 3;
 		useDefaultsButton.setLayoutData(buttonData);

 		createUserSpecifiedProjectLocationGroup(projectGroup, !useDefaults);

 		SelectionListener listener = new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent e) {
 				useDefaults = useDefaultsButton.getSelection();
 				browseButton.setEnabled(!useDefaults);
 				locationPathField.setEnabled(!useDefaults);
 				locationLabel.setEnabled(!useDefaults);
 				if (useDefaults) {
 					customLocationFieldValue = locationPathField.getText();
 					setLocationForSelection();
 				} else {
 					locationPathField.setText(customLocationFieldValue);
 				}
 			}
 		};
 		useDefaultsButton.addSelectionListener(listener);
 	}

 	/**
 	 * Creates the project name specification controls.
 	 *
 	 * @param parent the parent composite
 	 */
 	private final void createProjectNameGroup(Composite parent) {
 		Font font = parent.getFont();
 		// project specification group
 		Composite projectGroup = new Composite(parent, SWT.NONE);
 		GridLayout layout = new GridLayout();
 		layout.numColumns = 2;
 		projectGroup.setLayout(layout);
 		projectGroup.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

 		// new project label
 		Label projectLabel = new Label(projectGroup, SWT.NONE);
 		projectLabel.setFont(font);
 		projectLabel.setText(WorkbenchMessages.getString("WizardNewProjectCreationPage.nameLabel")); //$NON-NLS-1$

 		// new project name entry field
 		projectNameField = new Text(projectGroup, SWT.BORDER);
 		GridData data = new GridData(GridData.FILL_HORIZONTAL);
 		data.widthHint = SIZING_TEXT_FIELD_WIDTH;
 		projectNameField.setLayoutData(data);
 		projectNameField.setFont(font);

 		// Set the initial value first before listener
 		// to avoid handling an event during the creation.
 		if (initialProjectFieldValue != null)
 			projectNameField.setText(initialProjectFieldValue);
 		projectNameField.addListener(SWT.Modify, nameModifyListener);
 	}

 	/**
 	 * Creates the project location specification controls.
 	 *
 	 * @param projectGroup the parent composite
 	 * @param boolean - the initial enabled state of the widgets created
 	 */
 	private void createUserSpecifiedProjectLocationGroup(Composite projectGroup, boolean enabled) {
 		Font font = projectGroup.getFont();
 		// location label
 		locationLabel = new Label(projectGroup, SWT.NONE);
 		locationLabel.setFont(font);
 		locationLabel.setText(WorkbenchMessages.getString("WizardNewProjectCreationPage.locationLabel")); //$NON-NLS-1$
 		locationLabel.setEnabled(enabled);

 		// project location entry field
 		locationPathField = new Text(projectGroup, SWT.BORDER);
 		GridData data = new GridData(GridData.FILL_HORIZONTAL);
 		data.widthHint = SIZING_TEXT_FIELD_WIDTH;
 		locationPathField.setLayoutData(data);
 		locationPathField.setFont(font);
 		locationPathField.setEnabled(enabled);

 		// browse button
 		browseButton = new Button(projectGroup, SWT.PUSH);
 		browseButton.setFont(font);
 		browseButton.setText(WorkbenchMessages.getString("WizardNewProjectCreationPage.browseLabel")); //$NON-NLS-1$
 		browseButton.addSelectionListener(new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent event) {
 				handleLocationBrowseButtonPressed();
 			}
 		});

 		browseButton.setEnabled(enabled);

 		// Set the initial value first before listener
 		// to avoid handling an event during the creation.
 		if (initialLocationFieldValue != null)
 			locationPathField.setText(initialLocationFieldValue.toOSString());
 		locationPathField.addListener(SWT.Modify, locationModifyListener);
 	}

 	/**
 	 * Returns the current project location path as entered by
 	 * the user, or its anticipated initial value.
 	 *
 	 * @return the project location path, its anticipated initial value, or <code>null</code>
 	 *   if no project location path is known
 	 */
 	/* package */ IPath getLocationPath() {
 		if (useDefaults)
 			return initialLocationFieldValue;

 		return new Path(getProjectLocationFieldValue());
 	}

 	/**
 	 * Creates a project resource handle for the current project name field value.
 	 * <p>
 	 * This method does not create the project resource; this is the responsibility
 	 * of <code>IProject::create</code> invoked by the new project resource wizard.
 	 * </p>
 	 *
 	 * @return the new project resource handle
 	 */
 	/* package */ IProject getProjectHandle() {
 		return ResourcesPlugin.getWorkspace().getRoot().getProject(getProjectName());
 	}

 	/**
 	 * Returns the current project name as entered by the user, or its anticipated
 	 * initial value.
 	 *
 	 * @return the project name, its anticipated initial value, or <code>null</code>
 	 *   if no project name is known
 	 */
 	/* package */ String getProjectName() {
 		if (projectNameField == null)
 			return initialProjectFieldValue;

 		return getProjectNameFieldValue();
 	}

 	/**
 	 * Returns the value of the project name field
 	 * with leading and trailing spaces removed.
 	 *
 	 * @return the project name in the field
 	 */
 	private String getProjectNameFieldValue() {
 		if (projectNameField == null)
 			return ""; //$NON-NLS-1$
 		else
 			return projectNameField.getText().trim();
 	}

 	/**
 	 * Returns the value of the project location field
 	 * with leading and trailing spaces removed.
 	 *
 	 * @return the project location directory in the field
 	 */
 	private String getProjectLocationFieldValue() {
 		if (locationPathField == null)
 			return ""; //$NON-NLS-1$
 		else
 			return locationPathField.getText().trim();
 	}

 	/**
 	 *	Open an appropriate directory browser
 	 */
 	private void handleLocationBrowseButtonPressed() {
 		DirectoryDialog dialog = new DirectoryDialog(locationPathField.getShell());
 		dialog.setMessage(WorkbenchMessages.getString("WizardNewProjectCreationPage.directoryLabel")); //$NON-NLS-1$

 		String dirName = getProjectLocationFieldValue();
 		if (!dirName.equals("")) { //$NON-NLS-1$
 			File path = new File(dirName);
 			if (path.exists())
 				dialog.setFilterPath(new Path(dirName).toOSString());
 		}

 		String selectedDirectory = dialog.open();
 		if (selectedDirectory != null) {
 			customLocationFieldValue = selectedDirectory;
 			locationPathField.setText(customLocationFieldValue);
 		}
 	}

 	/**
 	 * Returns whether the currently specified project
 	 * content directory points to an exising project
 	 */
 	private boolean isExistingProjectLocation() {
 		IPath path = getLocationPath();
 		path = path.append(IProjectDescription.DESCRIPTION_FILE_NAME);
 		return path.toFile().exists();
 	}

 	/**
 	 * Sets the initial project name that this page will use when
 	 * created. The name is ignored if the createControl(Composite)
 	 * method has already been called. Leading and trailing spaces
 	 * in the name are ignored.
 	 *
 	 * @param name initial project name for this page
 	 */
 	/* package */ void setInitialProjectName(String name) {
 		if (name == null)
 			initialProjectFieldValue = null;
 		else
 			initialProjectFieldValue = name.trim();
 	}

 	/**
 	 * Set the location to the default location if we are set to useDefaults.
 	 */
 	private void setLocationForSelection() {
 		if (useDefaults) {
 			IPath defaultPath = Platform.getLocation().append(getProjectNameFieldValue());
 			locationPathField.setText(defaultPath.toOSString());
 		}
 	}

 	/**
 	 * Returns whether this page's controls currently all contain valid
 	 * values.
 	 *
 	 * @return <code>true</code> if all controls are valid, and
 	 *   <code>false</code> if at least one is invalid
 	 */
 	private boolean validatePage() {
 		IWorkspace workspace = WorkbenchPlugin.getPluginWorkspace();

 		String projectFieldContents = getProjectNameFieldValue();
 		if (projectFieldContents.equals("")) { //$NON-NLS-1$
 			setErrorMessage(null);
 			setMessage(WorkbenchMessages.getString("WizardNewProjectCreationPage.projectNameEmpty")); //$NON-NLS-1$
 			return false;
 		}

 		IStatus nameStatus = workspace.validateName(projectFieldContents, IResource.PROJECT);
 		if (!nameStatus.isOK()) {
 			setErrorMessage(nameStatus.getMessage());
 			return false;
 		}

 		String locationFieldContents = getProjectLocationFieldValue();

 		if (locationFieldContents.equals("")) { //$NON-NLS-1$
 			setErrorMessage(null);
 			setMessage(WorkbenchMessages.getString("WizardNewProjectCreationPage.projectLocationEmpty")); //$NON-NLS-1$
 			return false;
 		}

 		IPath path = new Path(""); //$NON-NLS-1$
 		if (!path.isValidPath(locationFieldContents)) {
 			setErrorMessage(WorkbenchMessages.getString("WizardNewProjectCreationPage.locationError")); //$NON-NLS-1$
 			return false;
 		}
 		if (!useDefaults && Platform.getLocation().isPrefixOf(new Path(locationFieldContents))) {
 			setErrorMessage(WorkbenchMessages.getString("WizardNewProjectCreationPage.defaultLocationError")); //$NON-NLS-1$
 			return false;
 		}

 		if (getProjectHandle().exists()) {
 			setErrorMessage(WorkbenchMessages.getString("WizardNewProjectCreationPage.projectExistsMessage")); //$NON-NLS-1$
 			return false;
 		}

 		if (isExistingProjectLocation()) {
 			setErrorMessage(WorkbenchMessages.getString("WizardNewProjectCreationPage.projectLocationExistsMessage")); //$NON-NLS-1$
 			return false;
 		}

 		setErrorMessage(null);
 		setMessage(null);
 		return true;
 	}

 /*
  * see @DialogPage.setVisible(boolean)
  */
 public void setVisible(boolean visible) {
 	super.setVisible(visible);
 	if(visible)
 		projectNameField.setFocus();
 }

 }
	package org.eclipse.ui.internal.dialogs;

	/**********************************************************************
	Copyright (c) 2002 IBM Corp. and others.
	All rights reserved. This program and the accompanying materials
	are made available under the terms of the Common Public License v0.5
	which accompanies this distribution, and is available at
	http://www.eclipse.org/legal/cpl-v05.html

	Contributors:
	Sebastian Davids <sdavids@gmx.de> - Fix for bug 19346 - Dialog font should be
	activated and used by other components.
	*********************************************************************/
	import java.io.File;
	import org.eclipse.core.resources.IProject;
	import org.eclipse.core.resources.IProjectDescription;
	import org.eclipse.core.resources.IResource;
	import org.eclipse.core.resources.IWorkspace;
	import org.eclipse.core.resources.ResourcesPlugin;
	import org.eclipse.core.runtime.IPath;
	import org.eclipse.core.runtime.IStatus;
	import org.eclipse.core.runtime.Path;
	import org.eclipse.core.runtime.Platform;
	import org.eclipse.jface.wizard.WizardPage;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.SelectionAdapter;
	import org.eclipse.swt.events.SelectionEvent;
	import org.eclipse.swt.events.SelectionListener;
	import org.eclipse.swt.graphics.Font;
	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.DirectoryDialog;
	import org.eclipse.swt.widgets.Event;
	import org.eclipse.swt.widgets.Label;
	import org.eclipse.swt.widgets.Listener;
	import org.eclipse.swt.widgets.Text;
	import org.eclipse.ui.help.WorkbenchHelp;
	import org.eclipse.ui.internal.IHelpContextIds;
	import org.eclipse.ui.internal.WorkbenchMessages;
	import org.eclipse.ui.internal.WorkbenchPlugin;

	/**
	* First page for the new project creation wizard. This page
	* collects the name and location of the new project.
	* <p>
	* Example useage:
	* <pre>
	* mainPage = new WizardNewProjectNameAndLocationPage("wizardNewProjectNameAndLocationPage");
	* mainPage.setTitle("Project");
	* mainPage.setDescription("Create a new project.");
	* </pre>
	* </p>
	*/
	public class WizardNewProjectNameAndLocationPage extends WizardPage {
	// Whether to use default or custom project location
	private boolean useDefaults = true;

	// initial value stores
	private String initialProjectFieldValue;
	private IPath initialLocationFieldValue;

	// the value the user has entered
	private String customLocationFieldValue;

	// widgets
	private Text projectNameField;
	private Text locationPathField;
	private Label locationLabel;
	private Button browseButton;

	private Listener nameModifyListener = new Listener() {
	public void handleEvent(Event e) {
	setLocationForSelection();
	setPageComplete(validatePage());
	}
	};

	private Listener locationModifyListener = new Listener() {
	public void handleEvent(Event e) {
	setPageComplete(validatePage());
	}
	};

	// constants
	private static final int SIZING_TEXT_FIELD_WIDTH = 250;
	private static final int SIZING_INDENTATION_WIDTH = 10;

	/**
	* Creates a new project creation wizard page.
	*
	* @param pageName the name of this page
	*/
	public WizardNewProjectNameAndLocationPage(String pageName) {
	super(pageName);
	setPageComplete(false);
	initialLocationFieldValue = Platform.getLocation();
	customLocationFieldValue = ""; //$NON-NLS-1$
	}

	/* (non-Javadoc)
	* Method declared on IWizardPage
	*/
	public boolean canFlipToNextPage() {
	// Already know there is a next page...
	return isPageComplete();
	}

	/* (non-Javadoc)
	* Method declared on IDialogPage.
	*/
	public void createControl(Composite parent) {
	Composite composite = new Composite(parent, SWT.NULL);
	composite.setLayout(new GridLayout());
	composite.setLayoutData(new GridData(GridData.FILL_BOTH));
	composite.setFont(parent.getFont());

	WorkbenchHelp.setHelp(composite, IHelpContextIds.NEW_PROJECT_WIZARD_PAGE);

	createProjectNameGroup(composite);
	createProjectLocationGroup(composite);

	validatePage();

	// Show description on opening
	setErrorMessage(null);
	setMessage(null);
	setControl(composite);
	}

	/**
	* Creates the project location specification controls.
	*
	* @param parent the parent composite
	*/
	private final void createProjectLocationGroup(Composite parent) {
	Font font = parent.getFont();
	// project specification group
	Composite projectGroup = new Composite(parent, SWT.NONE);
	GridLayout layout = new GridLayout();
	layout.numColumns = 3;
	projectGroup.setLayout(layout);
	projectGroup.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
	projectGroup.setFont(font);

	// new project label
	Label projectContentsLabel = new Label(projectGroup, SWT.NONE);
	projectContentsLabel.setFont(font);
	projectContentsLabel.setText(WorkbenchMessages.getString("WizardNewProjectCreationPage.projectContentsLabel")); //$NON-NLS-1$

	GridData labelData = new GridData();
	labelData.horizontalSpan = 3;
	projectContentsLabel.setLayoutData(labelData);

	final Button useDefaultsButton = new Button(projectGroup, SWT.CHECK \| SWT.RIGHT);
	useDefaultsButton.setText(WorkbenchMessages.getString("WizardNewProjectCreationPage.useDefaultLabel")); //$NON-NLS-1$
	useDefaultsButton.setSelection(useDefaults);
	useDefaultsButton.setFont(font);

	GridData buttonData = new GridData();
	buttonData.horizontalSpan = 3;
	useDefaultsButton.setLayoutData(buttonData);

	createUserSpecifiedProjectLocationGroup(projectGroup, !useDefaults);

	SelectionListener listener = new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	useDefaults = useDefaultsButton.getSelection();
	browseButton.setEnabled(!useDefaults);
	locationPathField.setEnabled(!useDefaults);
	locationLabel.setEnabled(!useDefaults);
	if (useDefaults) {
	customLocationFieldValue = locationPathField.getText();
	setLocationForSelection();
	} else {
	locationPathField.setText(customLocationFieldValue);
	}
	}
	};
	useDefaultsButton.addSelectionListener(listener);
	}

	/**
	* Creates the project name specification controls.
	*
	* @param parent the parent composite
	*/
	private final void createProjectNameGroup(Composite parent) {
	Font font = parent.getFont();
	// project specification group
	Composite projectGroup = new Composite(parent, SWT.NONE);
	GridLayout layout = new GridLayout();
	layout.numColumns = 2;
	projectGroup.setLayout(layout);
	projectGroup.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

	// new project label
	Label projectLabel = new Label(projectGroup, SWT.NONE);
	projectLabel.setFont(font);
	projectLabel.setText(WorkbenchMessages.getString("WizardNewProjectCreationPage.nameLabel")); //$NON-NLS-1$

	// new project name entry field
	projectNameField = new Text(projectGroup, SWT.BORDER);
	GridData data = new GridData(GridData.FILL_HORIZONTAL);
	data.widthHint = SIZING_TEXT_FIELD_WIDTH;
	projectNameField.setLayoutData(data);
	projectNameField.setFont(font);

	// Set the initial value first before listener
	// to avoid handling an event during the creation.
	if (initialProjectFieldValue != null)
	projectNameField.setText(initialProjectFieldValue);
	projectNameField.addListener(SWT.Modify, nameModifyListener);
	}

	/**
	* Creates the project location specification controls.
	*
	* @param projectGroup the parent composite
	* @param boolean - the initial enabled state of the widgets created
	*/
	private void createUserSpecifiedProjectLocationGroup(Composite projectGroup, boolean enabled) {
	Font font = projectGroup.getFont();
	// location label
	locationLabel = new Label(projectGroup, SWT.NONE);
	locationLabel.setFont(font);
	locationLabel.setText(WorkbenchMessages.getString("WizardNewProjectCreationPage.locationLabel")); //$NON-NLS-1$
	locationLabel.setEnabled(enabled);

	// project location entry field
	locationPathField = new Text(projectGroup, SWT.BORDER);
	GridData data = new GridData(GridData.FILL_HORIZONTAL);
	data.widthHint = SIZING_TEXT_FIELD_WIDTH;
	locationPathField.setLayoutData(data);
	locationPathField.setFont(font);
	locationPathField.setEnabled(enabled);

	// browse button
	browseButton = new Button(projectGroup, SWT.PUSH);
	browseButton.setFont(font);
	browseButton.setText(WorkbenchMessages.getString("WizardNewProjectCreationPage.browseLabel")); //$NON-NLS-1$
	browseButton.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent event) {
	handleLocationBrowseButtonPressed();
	}
	});

	browseButton.setEnabled(enabled);

	// Set the initial value first before listener
	// to avoid handling an event during the creation.
	if (initialLocationFieldValue != null)
	locationPathField.setText(initialLocationFieldValue.toOSString());
	locationPathField.addListener(SWT.Modify, locationModifyListener);
	}

	/**
	* Returns the current project location path as entered by
	* the user, or its anticipated initial value.
	*
	* @return the project location path, its anticipated initial value, or <code>null</code>
	* if no project location path is known
	*/
	/* package */ IPath getLocationPath() {
	if (useDefaults)
	return initialLocationFieldValue;

	return new Path(getProjectLocationFieldValue());
	}

	/**
	* Creates a project resource handle for the current project name field value.
	* <p>
	* This method does not create the project resource; this is the responsibility
	* of <code>IProject::create</code> invoked by the new project resource wizard.
	* </p>
	*
	* @return the new project resource handle
	*/
	/* package */ IProject getProjectHandle() {
	return ResourcesPlugin.getWorkspace().getRoot().getProject(getProjectName());
	}

	/**
	* Returns the current project name as entered by the user, or its anticipated
	* initial value.
	*
	* @return the project name, its anticipated initial value, or <code>null</code>
	* if no project name is known
	*/
	/* package */ String getProjectName() {
	if (projectNameField == null)
	return initialProjectFieldValue;

	return getProjectNameFieldValue();
	}

	/**
	* Returns the value of the project name field
	* with leading and trailing spaces removed.
	*
	* @return the project name in the field
	*/
	private String getProjectNameFieldValue() {
	if (projectNameField == null)
	return ""; //$NON-NLS-1$
	else
	return projectNameField.getText().trim();
	}

	/**
	* Returns the value of the project location field
	* with leading and trailing spaces removed.
	*
	* @return the project location directory in the field
	*/
	private String getProjectLocationFieldValue() {
	if (locationPathField == null)
	return ""; //$NON-NLS-1$
	else
	return locationPathField.getText().trim();
	}

	/**
	* Open an appropriate directory browser
	*/
	private void handleLocationBrowseButtonPressed() {
	DirectoryDialog dialog = new DirectoryDialog(locationPathField.getShell());
	dialog.setMessage(WorkbenchMessages.getString("WizardNewProjectCreationPage.directoryLabel")); //$NON-NLS-1$

	String dirName = getProjectLocationFieldValue();
	if (!dirName.equals("")) { //$NON-NLS-1$
	File path = new File(dirName);
	if (path.exists())
	dialog.setFilterPath(new Path(dirName).toOSString());
	}

	String selectedDirectory = dialog.open();
	if (selectedDirectory != null) {
	customLocationFieldValue = selectedDirectory;
	locationPathField.setText(customLocationFieldValue);
	}
	}

	/**
	* Returns whether the currently specified project
	* content directory points to an exising project
	*/
	private boolean isExistingProjectLocation() {
	IPath path = getLocationPath();
	path = path.append(IProjectDescription.DESCRIPTION_FILE_NAME);
	return path.toFile().exists();
	}

	/**
	* Sets the initial project name that this page will use when
	* created. The name is ignored if the createControl(Composite)
	* method has already been called. Leading and trailing spaces
	* in the name are ignored.
	*
	* @param name initial project name for this page
	*/
	/* package */ void setInitialProjectName(String name) {
	if (name == null)
	initialProjectFieldValue = null;
	else
	initialProjectFieldValue = name.trim();
	}

	/**
	* Set the location to the default location if we are set to useDefaults.
	*/
	private void setLocationForSelection() {
	if (useDefaults) {
	IPath defaultPath = Platform.getLocation().append(getProjectNameFieldValue());
	locationPathField.setText(defaultPath.toOSString());
	}
	}

	/**
	* Returns whether this page's controls currently all contain valid
	* values.
	*
	* @return <code>true</code> if all controls are valid, and
	* <code>false</code> if at least one is invalid
	*/
	private boolean validatePage() {
	IWorkspace workspace = WorkbenchPlugin.getPluginWorkspace();

	String projectFieldContents = getProjectNameFieldValue();
	if (projectFieldContents.equals("")) { //$NON-NLS-1$
	setErrorMessage(null);
	setMessage(WorkbenchMessages.getString("WizardNewProjectCreationPage.projectNameEmpty")); //$NON-NLS-1$
	return false;
	}

	IStatus nameStatus = workspace.validateName(projectFieldContents, IResource.PROJECT);
	if (!nameStatus.isOK()) {
	setErrorMessage(nameStatus.getMessage());
	return false;
	}

	String locationFieldContents = getProjectLocationFieldValue();

	if (locationFieldContents.equals("")) { //$NON-NLS-1$
	setErrorMessage(null);
	setMessage(WorkbenchMessages.getString("WizardNewProjectCreationPage.projectLocationEmpty")); //$NON-NLS-1$
	return false;
	}

	IPath path = new Path(""); //$NON-NLS-1$
	if (!path.isValidPath(locationFieldContents)) {
	setErrorMessage(WorkbenchMessages.getString("WizardNewProjectCreationPage.locationError")); //$NON-NLS-1$
	return false;
	}
	if (!useDefaults && Platform.getLocation().isPrefixOf(new Path(locationFieldContents))) {
	setErrorMessage(WorkbenchMessages.getString("WizardNewProjectCreationPage.defaultLocationError")); //$NON-NLS-1$
	return false;
	}

	if (getProjectHandle().exists()) {
	setErrorMessage(WorkbenchMessages.getString("WizardNewProjectCreationPage.projectExistsMessage")); //$NON-NLS-1$
	return false;
	}

	if (isExistingProjectLocation()) {
	setErrorMessage(WorkbenchMessages.getString("WizardNewProjectCreationPage.projectLocationExistsMessage")); //$NON-NLS-1$
	return false;
	}

	setErrorMessage(null);
	setMessage(null);
	return true;
	}

	/*
	* see @DialogPage.setVisible(boolean)
	*/
	public void setVisible(boolean visible) {
	super.setVisible(visible);
	if(visible)
	projectNameField.setFocus();
	}

	}