Bug 519254 - [9] Module declaration name should be validated while

creation

Change-Id: I59ab992009918109f0606d21a72c7415c98f9ade
Signed-off-by: kalyan prasad <kalyan_prasad@in.ibm.com>

8 files changed, 465 insertions, 95 deletions

diff --git a/org.eclipse.jdt.ui/icons/full/wizban/newmodule_wiz.png b/org.eclipse.jdt.ui/icons/full/wizban/newmodule_wiz.png
new file mode 100644
index 0000000000..98e6bbc023
--- /dev/null
+++ b/org.eclipse.jdt.ui/icons/full/wizban/newmodule_wiz.png
diff --git a/org.eclipse.jdt.ui/icons/full/wizban/newmodule_wiz@2x.png b/org.eclipse.jdt.ui/icons/full/wizban/newmodule_wiz@2x.png
new file mode 100644
index 0000000000..1fcefff896
--- /dev/null
+++ b/org.eclipse.jdt.ui/icons/full/wizban/newmodule_wiz@2x.png
diff --git a/org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/JavaPluginImages.java b/org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/JavaPluginImages.java
index 41c9a0435c..e11ecd9153 100644
--- a/org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/JavaPluginImages.java
+++ b/org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/JavaPluginImages.java
@@ -426,6 +426,7 @@ public class JavaPluginImages {
 	public static final ImageDescriptor DESC_WIZBAN_NEWJPRJ= createUnManaged(T_WIZBAN, "newjprj_wiz.png"); 			//$NON-NLS-1$
 	public static final ImageDescriptor DESC_WIZBAN_NEWSRCFOLDR= createUnManaged(T_WIZBAN, "newsrcfldr_wiz.png"); 	//$NON-NLS-1$
 	public static final ImageDescriptor DESC_WIZBAN_NEWPACK= createUnManaged(T_WIZBAN, "newpack_wiz.png"); 			//$NON-NLS-1$
+	public static final ImageDescriptor DESC_WIZBAN_NEWMODULE= createUnManaged(T_WIZBAN, "newmodule_wiz.png"); 			//$NON-NLS-1$
 	public static final ImageDescriptor DESC_WIZBAN_NEWSCRAPPAGE= createUnManaged(T_WIZBAN, "newsbook_wiz.png");		//$NON-NLS-1$
 	public static final ImageDescriptor DESC_WIZBAN_JAVA_LAUNCH= createUnManaged(T_WIZBAN, "java_app_wiz.png"); 		//$NON-NLS-1$
 	public static final ImageDescriptor DESC_WIZBAN_JAVA_ATTACH= createUnManaged(T_WIZBAN, "java_attach_wiz.png"); 	//$NON-NLS-1$
diff --git a/org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/actions/CreateModuleInfoAction.java b/org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/actions/CreateModuleInfoAction.java
index cd84955083..9971a0cdb3 100644
--- a/org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/actions/CreateModuleInfoAction.java
+++ b/org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/actions/CreateModuleInfoAction.java
@@ -21,10 +21,7 @@ import java.util.List;
 import org.eclipse.swt.widgets.Display;
 
 import org.eclipse.core.runtime.CoreException;
-import org.eclipse.core.runtime.NullProgressMonitor;
 
-import org.eclipse.core.resources.IFile;
-import org.eclipse.core.resources.IFolder;
 import org.eclipse.core.resources.IProject;
 import org.eclipse.core.resources.IResource;
 
@@ -32,33 +29,28 @@ import org.eclipse.jface.action.IAction;
 import org.eclipse.jface.dialogs.MessageDialog;
 import org.eclipse.jface.viewers.ISelection;
 import org.eclipse.jface.viewers.IStructuredSelection;
+import org.eclipse.jface.wizard.WizardDialog;
 
 import org.eclipse.ui.IObjectActionDelegate;
-import org.eclipse.ui.IWorkbenchPage;
 import org.eclipse.ui.IWorkbenchPart;
-import org.eclipse.ui.PartInitException;
-import org.eclipse.ui.ide.IDE;
-import org.eclipse.ui.wizards.newresource.BasicNewResourceWizard;
+import org.eclipse.ui.IWorkbenchWizard;
 
-import org.eclipse.jdt.core.IJavaElement;
 import org.eclipse.jdt.core.IJavaProject;
-import org.eclipse.jdt.core.IModuleDescription;
-import org.eclipse.jdt.core.IPackageFragment;
 import org.eclipse.jdt.core.IPackageFragmentRoot;
 import org.eclipse.jdt.core.JavaCore;
 
-import org.eclipse.jdt.internal.corext.util.InfoFilesUtil;
 import org.eclipse.jdt.internal.corext.util.JavaModelUtil;
 import org.eclipse.jdt.internal.corext.util.Messages;
 
 import org.eclipse.jdt.internal.ui.JavaPlugin;
+import org.eclipse.jdt.internal.ui.wizards.NewModuleInfoWizard;
 
 public class CreateModuleInfoAction implements IObjectActionDelegate {
 
 	private static final String MODULE_INFO_JAVA_FILENAME= JavaModelUtil.MODULE_INFO_JAVA;
 
 	private ISelection fSelection;
-
+	
 	@Override
 	public void selectionChanged(IAction action, ISelection selection) {
 		fSelection= selection;
@@ -119,95 +111,17 @@ public class CreateModuleInfoAction implements IObjectActionDelegate {
 					}
 				}
 
-				if (targetPkgFragmentRoot == null) {
-					targetPkgFragmentRoot= packageFragmentRoots[0];
-				}
-
-				createAndOpenFile(targetPkgFragmentRoot, packageFragmentRoots);
-
+				IWorkbenchWizard moduleInfoWizard= new NewModuleInfoWizard(javaProject, packageFragmentRoots, targetPkgFragmentRoot);
+				WizardDialog dialog= new WizardDialog(getDisplay().getActiveShell(), moduleInfoWizard);
+				dialog.setHelpAvailable(false);
+				dialog.create();				
+				dialog.open();
 			} catch (CoreException e) {
 				JavaPlugin.log(e);
 			}
 		}
 	}
 
-	private void createAndOpenFile(IPackageFragmentRoot targetPkgFragmentRoot, IPackageFragmentRoot[] packageFragmentRoots) throws CoreException {
-		createModuleInfoJava(targetPkgFragmentRoot, packageFragmentRoots);
-
-		IFile file= ((IFolder) targetPkgFragmentRoot.getCorrespondingResource()).getFile(MODULE_INFO_JAVA_FILENAME);
-		if (file.exists()) {
-			BasicNewResourceWizard.selectAndReveal(file, JavaPlugin.getActiveWorkbenchWindow());
-			openFile(file);
-		}
-	}
-
-	private void createModuleInfoJava(IPackageFragmentRoot targetPkgFragmentRoot, IPackageFragmentRoot[] packageFragmentRoots) throws CoreException {
-		String fileContent= getModuleInfoFileContent(packageFragmentRoots);
-		IPackageFragment defaultPkg= targetPkgFragmentRoot.getPackageFragment(""); //$NON-NLS-1$
-		InfoFilesUtil.createInfoJavaFile(MODULE_INFO_JAVA_FILENAME, fileContent.toString(), defaultPkg, new NullProgressMonitor());
-	}
-
-	private String getModuleInfoFileContent(IPackageFragmentRoot[] packageFragmentRoots) throws CoreException {
-		List<String> exportedPackages= new ArrayList<>();
-		for (IPackageFragmentRoot packageFragmentRoot : packageFragmentRoots) {
-			for (IJavaElement child : packageFragmentRoot.getChildren()) {
-				if (child instanceof IPackageFragment) {
-					IPackageFragment pkgFragment= (IPackageFragment) child;
-					if (!pkgFragment.isDefaultPackage() && pkgFragment.getCompilationUnits().length != 0) {
-						exportedPackages.add(pkgFragment.getElementName());
-					}
-				}
-			}
-		}
-
-		IJavaProject javaProject= packageFragmentRoots[0].getJavaProject();
-
-		String[] requiredModules= JavaCore.getReferencedModules(javaProject);
-
-		IModuleDescription moduleDescription= javaProject.getModuleDescription();
-		String moduleName= moduleDescription != null ? moduleDescription.getElementName() : javaProject.getElementName();
-
-		StringBuilder fileContent= new StringBuilder();
-		fileContent.append("module "); //$NON-NLS-1$
-		fileContent.append(moduleName);
-		fileContent.append(" {"); //$NON-NLS-1$
-
-		for (String exportedPkg : exportedPackages) {
-			fileContent.append("exports "); //$NON-NLS-1$
-			fileContent.append(exportedPkg);
-			fileContent.append(";"); //$NON-NLS-1$
-		}
-
-		for (String requiredModule : requiredModules) {
-			fileContent.append("requires "); //$NON-NLS-1$
-			fileContent.append(requiredModule);
-			fileContent.append(';');
-		}
-
-		fileContent.append('}');
-
-		return fileContent.toString();
-	}
-
-	private void openFile(final IFile file) {
-		final IWorkbenchPage activePage= JavaPlugin.getActivePage();
-		if (activePage != null) {
-			final Display display= getDisplay();
-			if (display != null) {
-				display.asyncExec(new Runnable() {
-					@Override
-					public void run() {
-						try {
-							IDE.openEditor(activePage, file, true);
-						} catch (PartInitException e) {
-							JavaPlugin.log(e);
-						}
-					}
-				});
-			}
-		}
-	}
-
 	private Display getDisplay() {
 		Display display= Display.getCurrent();
 		if (display == null)
diff --git a/org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/NewModuleInfoWizard.java b/org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/NewModuleInfoWizard.java
new file mode 100644
index 0000000000..34097d3272
--- /dev/null
+++ b/org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/NewModuleInfoWizard.java
@@ -0,0 +1,189 @@
+/*******************************************************************************

+ * Copyright (c) 2017 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

+ *

+ * This is an implementation of an early-draft specification developed under the Java

+ * Community Process (JCP) and is made available for testing and evaluation purposes

+ * only. The code is not compatible with any specification of the JCP.

+ * 

+ * Contributors:

+ *     IBM Corporation - initial API and implementation

+ *******************************************************************************/

+package org.eclipse.jdt.internal.ui.wizards;

+

+import java.util.ArrayList;

+import java.util.List;

+

+import org.eclipse.swt.widgets.Display;

+

+import org.eclipse.core.runtime.CoreException;

+import org.eclipse.core.runtime.IStatus;

+import org.eclipse.core.runtime.NullProgressMonitor;

+

+import org.eclipse.core.resources.IFile;

+import org.eclipse.core.resources.IFolder;

+

+import org.eclipse.jface.viewers.IStructuredSelection;

+import org.eclipse.jface.wizard.Wizard;

+

+import org.eclipse.ui.INewWizard;

+import org.eclipse.ui.IWorkbench;

+import org.eclipse.ui.IWorkbenchPage;

+import org.eclipse.ui.PartInitException;

+import org.eclipse.ui.ide.IDE;

+import org.eclipse.ui.wizards.newresource.BasicNewResourceWizard;

+

+import org.eclipse.jdt.core.IJavaElement;

+import org.eclipse.jdt.core.IJavaProject;

+import org.eclipse.jdt.core.IPackageFragment;

+import org.eclipse.jdt.core.IPackageFragmentRoot;

+import org.eclipse.jdt.core.JavaCore;

+

+import org.eclipse.jdt.internal.corext.util.InfoFilesUtil;

+import org.eclipse.jdt.internal.corext.util.JavaModelUtil;

+

+import org.eclipse.jdt.ui.wizards.NewModuleInfoWizardPage;

+

+import org.eclipse.jdt.internal.ui.JavaPlugin;

+import org.eclipse.jdt.internal.ui.JavaPluginImages;

+

+public class NewModuleInfoWizard extends Wizard implements INewWizard {

+

+	private NewModuleInfoWizardPage fPage;

+

+	private static final String MODULE_INFO_JAVA_FILENAME= JavaModelUtil.MODULE_INFO_JAVA;

+

+	private IPackageFragmentRoot fTargetPkgFragmentRoot;

+

+	private IPackageFragmentRoot[] fPackageFragmentRoots;

+

+	private IJavaProject fProject;

+

+	public NewModuleInfoWizard(IJavaProject project, IPackageFragmentRoot[] packageFragmentRoots, IPackageFragmentRoot targetPkgFragmentRoot) {

+		setDefaultPageImageDescriptor(JavaPluginImages.DESC_WIZBAN_NEWMODULE);

+		setDialogSettings(JavaPlugin.getDefault().getDialogSettings());

+		setWindowTitle(NewWizardMessages.NewModuleInfoWizard_title);

+		fProject= project;

+		fPackageFragmentRoots= packageFragmentRoots;

+		if (targetPkgFragmentRoot != null) {

+			fTargetPkgFragmentRoot= targetPkgFragmentRoot;

+		} else if (fPackageFragmentRoots != null && fPackageFragmentRoots.length > 0) {

+			fTargetPkgFragmentRoot= fPackageFragmentRoots[0];

+		}

+	}

+

+	@Override

+	public void addPages() {

+		super.addPages();

+		if (fPage == null) {

+			fPage= new NewModuleInfoWizardPage();

+			fPage.setWizard(this);

+			fPage.init(fProject);

+		}

+		addPage(fPage);

+	}

+

+	@Override

+	public boolean performFinish() {

+		IStatus status= fPage.getModuleNameStatus();

+		int severity= status.getSeverity();

+		if (severity == IStatus.OK || severity == IStatus.WARNING || severity == IStatus.INFO) {

+			if (fProject != null && fTargetPkgFragmentRoot != null && fPackageFragmentRoots != null && fPackageFragmentRoots.length > 0) {

+				try {

+					createAndOpenFile(fTargetPkgFragmentRoot, fPackageFragmentRoots);

+				} catch (CoreException e) {

+					JavaPlugin.log(e);

+				}

+			}

+		}

+		return true;

+	}

+

+	private void createAndOpenFile(IPackageFragmentRoot targetPkgFragmentRoot, IPackageFragmentRoot[] packageFragmentRoots) throws CoreException {

+		createModuleInfoJava(targetPkgFragmentRoot, packageFragmentRoots);

+

+		IFile file= ((IFolder) targetPkgFragmentRoot.getCorrespondingResource()).getFile(MODULE_INFO_JAVA_FILENAME);

+		if (file.exists()) {

+			BasicNewResourceWizard.selectAndReveal(file, JavaPlugin.getActiveWorkbenchWindow());

+			openFile(file);

+		}

+	}

+

+	private void openFile(final IFile file) {

+		final IWorkbenchPage activePage= JavaPlugin.getActivePage();

+		if (activePage != null) {

+			final Display display= getDisplay();

+			if (display != null) {

+				display.asyncExec(new Runnable() {

+					@Override

+					public void run() {

+						try {

+							IDE.openEditor(activePage, file, true);

+						} catch (PartInitException e) {

+							JavaPlugin.log(e);

+						}

+					}

+				});

+			}

+		}

+	}

+

+	private Display getDisplay() {

+		Display display= Display.getCurrent();

+		if (display == null)

+			display= Display.getDefault();

+		return display;

+	}

+

+	private void createModuleInfoJava(IPackageFragmentRoot targetPkgFragmentRoot, IPackageFragmentRoot[] packageFragmentRoots) throws CoreException {

+		String fileContent= getModuleInfoFileContent(packageFragmentRoots);

+		IPackageFragment defaultPkg= targetPkgFragmentRoot.getPackageFragment(""); //$NON-NLS-1$

+		InfoFilesUtil.createInfoJavaFile(MODULE_INFO_JAVA_FILENAME, fileContent.toString(), defaultPkg, new NullProgressMonitor());

+	}

+

+	private String getModuleInfoFileContent(IPackageFragmentRoot[] packageFragmentRoots) throws CoreException {

+		List<String> exportedPackages= new ArrayList<>();

+		for (IPackageFragmentRoot packageFragmentRoot : packageFragmentRoots) {

+			for (IJavaElement child : packageFragmentRoot.getChildren()) {

+				if (child instanceof IPackageFragment) {

+					IPackageFragment pkgFragment= (IPackageFragment) child;

+					if (!pkgFragment.isDefaultPackage() && pkgFragment.getCompilationUnits().length != 0) {

+						exportedPackages.add(pkgFragment.getElementName());

+					}

+				}

+			}

+		}

+

+		String[] requiredModules= JavaCore.getReferencedModules(fProject);

+		String moduleName= fPage.getModuleNameText();

+		StringBuilder fileContent= new StringBuilder();

+		fileContent.append("module "); //$NON-NLS-1$

+		fileContent.append(moduleName);

+		fileContent.append(" {"); //$NON-NLS-1$

+

+		for (String exportedPkg : exportedPackages) {

+			fileContent.append("exports "); //$NON-NLS-1$

+			fileContent.append(exportedPkg);

+			fileContent.append(";"); //$NON-NLS-1$

+		}

+

+		for (String requiredModule : requiredModules) {

+			fileContent.append("requires "); //$NON-NLS-1$

+			fileContent.append(requiredModule);

+			fileContent.append(';');

+		}

+

+		fileContent.append('}');

+

+		return fileContent.toString();

+	}

+

+	@Override

+	public void init(IWorkbench workbench, IStructuredSelection selection) {

+		//do nothing

+	}

+

+}

diff --git a/org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/NewWizardMessages.java b/org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/NewWizardMessages.java
index bfe5d68cc0..7aa095cc68 100644
--- a/org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/NewWizardMessages.java
+++ b/org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/NewWizardMessages.java
@@ -769,6 +769,14 @@ public final class NewWizardMessages extends NLS {
 	public static String EditVariableEntryDialog_filename_empty;
 
 	public static String CPListLabelProvider_external_annotations_location_label;
+	
+	public static String NewModuleInfoWizard_title;
+	public static String NewModuleInfoWizardPage_title;
+	public static String NewModuleInfoWizardPage_description;
+	public static String NewModuleInfoWizardPage_module_label;
+	public static String NewModuleInfoWizardPage_error_InvalidModuleName;
+	public static String NewModuleInfoWizardPage_warning_DiscouragedModuleName;
+	public static String NewModuleInfoWizardPage_error_EnterName;
 
 	static {
 		NLS.initializeMessages(BUNDLE_NAME, NewWizardMessages.class);
diff --git a/org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/NewWizardMessages.properties b/org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/NewWizardMessages.properties
index 1f968cc422..c4b1c21639 100644
--- a/org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/NewWizardMessages.properties
+++ b/org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/NewWizardMessages.properties
@@ -745,6 +745,18 @@ HintTextGroup_NoAction=<form>\
 No actions available for this selection.<br>Reason:</br>{0}\
 </form>
 
+# ------- NewModuleFileWizardPage -------
+
+NewModuleInfoWizardPage_title=module-info.java
+NewModuleInfoWizardPage_description=Create a new module-info.java file.
+NewModuleInfoWizardPage_module_label=&Module name:
+NewModuleInfoWizardPage_error_InvalidModuleName=Invalid module name. {0}
+NewModuleInfoWizardPage_error_EnterName=Enter a module name.
+NewModuleInfoWizardPage_warning_DiscouragedModuleName=Discouraged module name. {0}
+
+NewModuleInfoWizard_title=New module-info.java
+
+
 # ------- NewSourceContainerWorkbookPage -------
 NewSourceContainerWorkbookPage_HintTextGroup_title=Details
 NewSourceContainerWorkbookPage_ToolBar_ConfigureBP_tooltip=Configure Build Path
diff --git a/org.eclipse.jdt.ui/ui/org/eclipse/jdt/ui/wizards/NewModuleInfoWizardPage.java b/org.eclipse.jdt.ui/ui/org/eclipse/jdt/ui/wizards/NewModuleInfoWizardPage.java
new file mode 100644
index 0000000000..93dcf7e07b
--- /dev/null
+++ b/org.eclipse.jdt.ui/ui/org/eclipse/jdt/ui/wizards/NewModuleInfoWizardPage.java
@@ -0,0 +1,246 @@
+/*******************************************************************************

+ * Copyright (c) 2017 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

+ *

+ * This is an implementation of an early-draft specification developed under the Java

+ * Community Process (JCP) and is made available for testing and evaluation purposes

+ * only. The code is not compatible with any specification of the JCP.

+ *

+ * Contributors:

+ *     IBM Corporation - initial API and implementation

+ *******************************************************************************/

+package org.eclipse.jdt.ui.wizards;

+

+import org.eclipse.equinox.bidi.StructuredTextTypeHandlerFactory;

+

+import org.eclipse.swt.SWT;

+import org.eclipse.swt.layout.GridLayout;

+import org.eclipse.swt.widgets.Composite;

+import org.eclipse.swt.widgets.Text;

+

+import org.eclipse.core.runtime.IStatus;

+

+import org.eclipse.jface.dialogs.Dialog;

+import org.eclipse.jface.util.BidiUtils;

+

+import org.eclipse.jdt.core.IJavaProject;

+import org.eclipse.jdt.core.IModuleDescription;

+import org.eclipse.jdt.core.JavaConventions;

+import org.eclipse.jdt.core.JavaCore;

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

+

+import org.eclipse.jdt.internal.corext.util.JavaModelUtil;

+import org.eclipse.jdt.internal.corext.util.Messages;

+

+import org.eclipse.jdt.internal.ui.dialogs.StatusInfo;

+import org.eclipse.jdt.internal.ui.dialogs.TextFieldNavigationHandler;

+import org.eclipse.jdt.internal.ui.wizards.NewWizardMessages;

+import org.eclipse.jdt.internal.ui.wizards.dialogfields.DialogField;

+import org.eclipse.jdt.internal.ui.wizards.dialogfields.IDialogFieldListener;

+import org.eclipse.jdt.internal.ui.wizards.dialogfields.LayoutUtil;

+import org.eclipse.jdt.internal.ui.wizards.dialogfields.StringDialogField;

+

+/**

+ * Wizard page to create a new module-info file.

+ *

+ * <p>

+ * Note: This class is not intended to be subclassed, but clients can instantiate.

+ * </p>

+ *

+ * @since 3.13 BETA_JAVA9

+ *

+ * @noextend This class is not intended to be subclassed by clients.

+ */

+public class NewModuleInfoWizardPage extends NewElementWizardPage {

+

+	private static final String PAGE_NAME= "NewModuleInfoWizardPage"; //$NON-NLS-1$

+

+	private IJavaProject fProject;

+

+	private static final String MODULE_INFO_JAVA_FILENAME= JavaModelUtil.MODULE_INFO_JAVA;

+

+	private StringDialogField fModuleNameDialogField;

+

+	/*

+	 * Status of last validation of the module name field

+	 */

+	private IStatus fModuleNameStatus;

+

+	public NewModuleInfoWizardPage() {

+		super(PAGE_NAME);

+		String title= Messages.format(NewWizardMessages.NewModuleInfoWizardPage_title, MODULE_INFO_JAVA_FILENAME);

+		setTitle(title);

+		String description= Messages.format(NewWizardMessages.NewModuleInfoWizardPage_description, MODULE_INFO_JAVA_FILENAME);

+		setDescription(description);

+

+		ModuleFieldAdapter adapter= new ModuleFieldAdapter();

+

+		fModuleNameDialogField= new StringDialogField();

+		fModuleNameDialogField.setDialogFieldListener(adapter);

+		fModuleNameDialogField.setLabelText(NewWizardMessages.NewModuleInfoWizardPage_module_label);

+

+		fModuleNameStatus= new StatusInfo();

+	}

+

+	// -------- Initialization ---------

+

+	/**

+	 * The wizard owning this page is responsible for calling this method with the 

+	 * current selection's project. The project is used to initialize the fields of the wizard page.

+	 *

+	 * @param project used to initialize the fields

+	 */

+	public void init(IJavaProject project) {

+

+		if (project != null) {

+			fProject= project;

+		} else {

+			return;

+		}

+

+		IModuleDescription moduleDescription= null;

+		try {

+			moduleDescription= fProject.getModuleDescription();

+		} catch (JavaModelException e) {

+			// Ignore

+		}

+		String moduleName= moduleDescription != null ? moduleDescription.getElementName() : fProject.getElementName();

+

+		IStatus status= getModuleStatus(moduleName);

+		if (status.getSeverity() == IStatus.OK || status.getSeverity() == IStatus.WARNING || status.getSeverity() == IStatus.INFO) {

+			setModuleText(moduleName, true);

+		} else {

+			setModuleText("", true); //$NON-NLS-1$

+		}

+

+	}

+

+	@Override

+	public void createControl(Composite parent) {

+		initializeDialogUnits(parent);

+

+		Composite composite= new Composite(parent, SWT.NONE);

+		composite.setFont(parent.getFont());

+		int nColumns= 2;

+

+		GridLayout layout= new GridLayout();

+		layout.numColumns= 2;

+		composite.setLayout(layout);

+

+		createModuleInfoControls(composite, nColumns);

+

+		setControl(composite);

+		Dialog.applyDialogFont(composite);

+

+	}

+

+	@Override

+	public void setVisible(boolean visible) {

+		super.setVisible(visible);

+		if (visible) {

+			setFocus();

+		}

+	}

+

+	/**

+	 * Sets the focus to the module name field.

+	 */

+	private void setFocus() {

+		fModuleNameDialogField.setFocus();

+	}

+

+	private void createModuleInfoControls(Composite composite, int nColumns) {

+		fModuleNameDialogField.doFillIntoGrid(composite, nColumns);

+		Text text= fModuleNameDialogField.getTextControl(null);

+		LayoutUtil.setWidthHint(text, getMaxFieldWidth());

+		LayoutUtil.setHorizontalGrabbing(text);

+		DialogField.createEmptySpace(composite);

+		TextFieldNavigationHandler.install(text);

+		BidiUtils.applyBidiProcessing(fModuleNameDialogField.getTextControl(null), StructuredTextTypeHandlerFactory.JAVA);

+	}

+

+	private class ModuleFieldAdapter implements IDialogFieldListener {

+

+		@Override

+		public void dialogFieldChanged(DialogField field) {

+			fModuleNameStatus= getModuleStatus(getModuleNameText());

+			// tell all others

+			handleFieldChanged();

+		}

+	}

+

+	/**

+	 * Returns the recommended maximum width for text fields (in pixels). This method requires that

+	 * createContent has been called before this method is call.

+	 *

+	 * @return the recommended maximum width for text fields.

+	 */

+	private int getMaxFieldWidth() {

+		return convertWidthInCharsToPixels(25);

+	}

+

+	private void handleFieldChanged() {

+		updateStatus(fModuleNameStatus);

+	}

+

+	private IStatus validateModuleName(String name) {

+		String sourceLevel= fProject.getOption(JavaCore.COMPILER_SOURCE, true);

+		String complianceLevel= fProject.getOption(JavaCore.COMPILER_COMPLIANCE, true);

+		return JavaConventions.validateModuleName(name, sourceLevel, complianceLevel);

+	}

+

+	/**

+	 * Validates the module name and returns the status of the validation.

+	 * 

+	 * @param moduleName the module name

+	 * 

+	 * @return the status of the validation

+	 */

+	private IStatus getModuleStatus(String moduleName) {

+		StatusInfo status= new StatusInfo();

+		if (moduleName != null && moduleName.length() > 0) {

+			IStatus val= validateModuleName(moduleName);

+			if (val.getSeverity() == IStatus.ERROR) {

+				status.setError(Messages.format(NewWizardMessages.NewModuleInfoWizardPage_error_InvalidModuleName, val.getMessage()));

+			} else if (val.getSeverity() == IStatus.WARNING) {

+				status.setWarning(Messages.format(NewWizardMessages.NewModuleInfoWizardPage_warning_DiscouragedModuleName, val.getMessage()));

+			}

+		} else {

+			status.setError(NewWizardMessages.NewModuleInfoWizardPage_error_EnterName);

+		}

+		return status;

+	}

+

+	/**

+	 * Returns the content of the module name field.

+	 *

+	 * @return the content of the module name field

+	 */

+	public String getModuleNameText() {

+		return fModuleNameDialogField.getText();

+	}

+

+	public IJavaProject getProject() {

+		return fProject;

+	}

+

+	public IStatus getModuleNameStatus() {

+		return fModuleNameStatus;

+	}

+

+	/**

+	 * Sets the content of the module name field to the given value.

+	 *

+	 * @param moduleName the new module name field text

+	 * @param canBeModified if <code>true</code> the module input field can be modified; otherwise it is

+	 *            read-only.

+	 */

+	private void setModuleText(String moduleName, boolean canBeModified) {

+		fModuleNameDialogField.setText(moduleName);

+		fModuleNameDialogField.setEnabled(canBeModified);

+	}

+

+}