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

 /*
  * Copyright (c) 2002 IBM Corp.  All rights reserved.
  * This file is made available under the terms of the Common Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/cpl-v10.html
  *
  * Contributors:  Sebastian Davids <sdavids@gmx.de> - Fix for bug 19346 - Dialog
  * font should be activated and used by other components.
  */
 package org.eclipse.ui.dialogs;

 import java.lang.reflect.InvocationTargetException;
 import java.text.MessageFormat;

 import org.eclipse.core.resources.*;
 import org.eclipse.core.runtime.*;
 import org.eclipse.jface.dialogs.*;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.graphics.Font;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.*;
 import org.eclipse.ui.actions.WorkspaceModifyOperation;
 import org.eclipse.ui.help.WorkbenchHelp;
 import org.eclipse.ui.internal.*;
 import org.eclipse.ui.internal.dialogs.CreateLinkedResourceGroup;

 /**
  * The NewFolderDialog is used to create a new folder.
  * The folder can optionally be linked to a file system folder.
  * <p>
  * NOTE:
  * A linked folder can only be created at the project
  * level. The widgets used to specify a link target are disabled
  * if the supplied container is not a project.
  * </p>
  * <p>
  * This class may be instantiated; it is not intended to be subclassed.
  * </p>
  */
 public class NewFolderDialog extends SelectionStatusDialog {
 	// widgets
 	private Text folderNameField;
 	private CreateLinkedResourceGroup linkedResourceGroup;

 	private IContainer container;
 	private boolean firstLinkCheck = true;

 /**
  * Creates a NewFolderDialog
  *
  * @param parentShell parent of the new dialog
  * @param container parent of the new folder
  */
 public NewFolderDialog(Shell parentShell, IContainer container) {
 	super(parentShell);
 	this.container = container;
 	linkedResourceGroup = new CreateLinkedResourceGroup(
 		IResource.FOLDER,
 		new Listener() {
 			public void handleEvent(Event e) {
 				validateLinkedResource();
 				firstLinkCheck = false;
 			}
 		});
 	setTitle(WorkbenchMessages.getString("NewFolderDialog.title")); //$NON-NLS-1$
 	setShellStyle(getShellStyle() | SWT.RESIZE);
 	setStatusLineAboveButtons(true);
 }
 /* (non-Javadoc)
  * Method declared in Window.
  */
 protected void configureShell(Shell shell) {
 	super.configureShell(shell);
 	WorkbenchHelp.setHelp(shell, IHelpContextIds.NEW_FOLDER_DIALOG);
 }
 /**
  * @see org.eclipse.jface.window.Window#create()
  */
 public void create() {
 	super.create();
 	// initially disable the ok button since we don't preset the
 	// folder name field
 	getButton(IDialogConstants.OK_ID).setEnabled(false);
 }
 /* (non-Javadoc)
  * Method declared on Dialog.
  */
 protected Control createDialogArea(Composite parent) {
 	Font font = parent.getFont();
 	Composite composite = (Composite) super.createDialogArea(parent);
 	composite.setLayout(new GridLayout());
 	composite.setLayoutData(new GridData(GridData.FILL_BOTH));

 	createFolderNameGroup(composite);
 	linkedResourceGroup.createContents(composite);
 	return composite;
 }
 /**
  * Creates the folder name specification controls.
  *
  * @param parent the parent composite
  */
 private void createFolderNameGroup(Composite parent) {
 	Font font = parent.getFont();
 	// project specification group
 	Composite folderGroup = new Composite(parent,SWT.NONE);
 	GridLayout layout = new GridLayout();
 	layout.numColumns = 2;
 	folderGroup.setLayout(layout);
 	folderGroup.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

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

 	// new project name entry field
 	folderNameField = new Text(folderGroup, SWT.BORDER);
 	GridData data = new GridData(GridData.FILL_HORIZONTAL);
 	data.widthHint = IDialogConstants.ENTRY_FIELD_WIDTH;
 	folderNameField.setLayoutData(data);
 	folderNameField.setFont(font);
 	folderNameField.addListener(SWT.Modify, new Listener() {
 		public void handleEvent(Event event) {
 			validateLinkedResource();
 		}
 	});
 }
 /**
  * Creates a folder resource handle for the folder with the given name.
  * The folder handle is created relative to the container specified during
  * object creation.
  *
  * @param folderName the name of the folder resource to create a handle for
  * @return the new folder resource handle
  */
 private IFolder createFolderHandle(String folderName) {
 	IWorkspaceRoot workspaceRoot = container.getWorkspace().getRoot();
 	IPath folderPath = container.getFullPath().append(folderName);
 	IFolder folderHandle = workspaceRoot.getFolder(folderPath);

 	return folderHandle;
 }
 /**
  * Creates a new folder with the given name and optionally linking to
  * the specified link target.
  *
  * @param folderName name of the new folder
  * @param linkTargetName name of the link target folder. may be null.
  * @return IFolder the new folder
  */
 private IFolder createNewFolder(String folderName, final String linkTargetName) {
 	final IFolder folderHandle = createFolderHandle(folderName);

 	WorkspaceModifyOperation operation = new WorkspaceModifyOperation() {
 		public void execute(IProgressMonitor monitor) throws CoreException {
 			try {
 				monitor.beginTask(WorkbenchMessages.getString("NewFolderDialog.progress"), 2000); //$NON-NLS-1$
 				if (monitor.isCanceled())
 					throw new OperationCanceledException();
 				if (linkTargetName == null)
 					folderHandle.create(false, true, monitor);
 				else
 					folderHandle.createLink(new Path(linkTargetName), IResource.ALLOW_MISSING_LOCAL, monitor);
 				if (monitor.isCanceled())
 					throw new OperationCanceledException();
 			} finally {
 				monitor.done();
 			}
 		}
 	};

 	try {
 		new ProgressMonitorDialog(getShell()).run(true, true, operation);
 	} catch (InterruptedException exception) {
 		return null;
 	} catch (InvocationTargetException exception) {
 		if (exception.getTargetException() instanceof CoreException) {
 			ErrorDialog.openError(
 				getShell(),
 				WorkbenchMessages.getString("NewFolderDialog.errorTitle"),  //$NON-NLS-1$
 				null,	// no special message
 				((CoreException) exception.getTargetException()).getStatus());
 		}
 		else {
 			// CoreExceptions are handled above, but unexpected runtime exceptions and errors may still occur.
 			WorkbenchPlugin.log(MessageFormat.format(
 				"Exception in {0}.createNewFolder(): {1}", 					//$NON-NLS-1$
 				new Object[] {getClass().getName(), exception.getTargetException()}));
 			MessageDialog.openError(
 				getShell(),
 				WorkbenchMessages.getString("NewFolderDialog.errorTitle"), 	//$NON-NLS-1$
 				WorkbenchMessages.format("NewFolderDialog.internalError", 	//$NON-NLS-1$
 				new Object[] {exception.getTargetException().getMessage()}));
 		}
 		return null;
 	}
 	return folderHandle;
 }
 /**
  * Creates the folder using the name and link target entered
  * by the user.
  * Sets the dialog result to the created folder.
  */
 protected void computeResult() {
 	String linkTarget = linkedResourceGroup.getLinkTarget();
 	IFolder folder = createNewFolder(folderNameField.getText(), linkTarget);
 	if(folder == null)
 		return;

 	setSelectionResult(new IFolder[] {folder});
 }
 /**
  * Update the dialog's status line to reflect the given status. It is safe to call
  * this method before the dialog has been opened.
  */
 protected void updateStatus(IStatus status) {
 	if (firstLinkCheck && status != null) {
 		// don't show the first validation result as an error.
 		// fixes bug 29659
 		Status newStatus = new Status(
 			IStatus.OK,
 			status.getPlugin(),
 			status.getCode(),
 			status.getMessage(),
 			status.getException());
 		super.updateStatus(newStatus);
 	}
 	else {
 		super.updateStatus(status);
 	}
 }
 /**
  * Update the dialog's status line to reflect the given status. It is safe to call
  * this method before the dialog has been opened.
  */
 private void updateStatus(int severity, String message) {
 	updateStatus(
 		new Status(
 			severity,
 			WorkbenchPlugin.getDefault().getDescriptor().getUniqueIdentifier(),
 			severity,
 			message,
 			null));
 }
 /**
  * Checks whether the folder name and link location are valid.
  *
  * @return null if the folder name and link location are valid.
  * 	a message that indicates the problem otherwise.
  */
 private void validateLinkedResource() {
 	boolean valid = validateFolderName();

 	if (valid) {
 		IFolder linkHandle = createFolderHandle(folderNameField.getText());
 		IStatus status = linkedResourceGroup.validateLinkLocation(linkHandle);

 		if (status.getSeverity() != IStatus.ERROR)
 			getOkButton().setEnabled(true);
 		else
 			getOkButton().setEnabled(false);

 		if (status.isOK() == false)
 			updateStatus(status);
 	}
 }
 /**
  * Checks if the folder name is valid.
  *
  * @return null if the new folder name is valid.
  * 	a message that indicates the problem otherwise.
  */
 private boolean validateFolderName() {
 	String name = folderNameField.getText();
 	IWorkspace workspace = container.getWorkspace();
 	IStatus nameStatus = workspace.validateName(name, IResource.FOLDER);

 	if ("".equals(name)) {
 		updateStatus(IStatus.ERROR, WorkbenchMessages.getString("NewFolderDialog.folderNameEmpty"));	//$NON-NLS-1$
 		return false;
 	}
 	if (nameStatus.isOK() == false) {
 		updateStatus(nameStatus);
 		return false;
 	}
 	IFolder newFolder = container.getFolder(new Path(name));
 	if (newFolder.exists()) {
 		updateStatus(IStatus.ERROR, WorkbenchMessages.format("NewFolderDialog.alreadyExists", new Object[] { name }));	//$NON-NLS-1$
 		return false;
 	}
 	updateStatus(IStatus.OK, "");	//$NON-NLS-1$
 	return true;
 }
 }
	/*
	* Copyright (c) 2002 IBM Corp. All rights reserved.
	* This file is made available under the terms of the Common Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/cpl-v10.html
	*
	* Contributors: Sebastian Davids <sdavids@gmx.de> - Fix for bug 19346 - Dialog
	* font should be activated and used by other components.
	*/
	package org.eclipse.ui.dialogs;

	import java.lang.reflect.InvocationTargetException;
	import java.text.MessageFormat;

	import org.eclipse.core.resources.*;
	import org.eclipse.core.runtime.*;
	import org.eclipse.jface.dialogs.*;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.graphics.Font;
	import org.eclipse.swt.layout.GridData;
	import org.eclipse.swt.layout.GridLayout;
	import org.eclipse.swt.widgets.*;
	import org.eclipse.ui.actions.WorkspaceModifyOperation;
	import org.eclipse.ui.help.WorkbenchHelp;
	import org.eclipse.ui.internal.*;
	import org.eclipse.ui.internal.dialogs.CreateLinkedResourceGroup;

	/**
	* The NewFolderDialog is used to create a new folder.
	* The folder can optionally be linked to a file system folder.
	* <p>
	* NOTE:
	* A linked folder can only be created at the project
	* level. The widgets used to specify a link target are disabled
	* if the supplied container is not a project.
	* </p>
	* <p>
	* This class may be instantiated; it is not intended to be subclassed.
	* </p>
	*/
	public class NewFolderDialog extends SelectionStatusDialog {
	// widgets
	private Text folderNameField;
	private CreateLinkedResourceGroup linkedResourceGroup;

	private IContainer container;
	private boolean firstLinkCheck = true;

	/**
	* Creates a NewFolderDialog
	*
	* @param parentShell parent of the new dialog
	* @param container parent of the new folder
	*/
	public NewFolderDialog(Shell parentShell, IContainer container) {
	super(parentShell);
	this.container = container;
	linkedResourceGroup = new CreateLinkedResourceGroup(
	IResource.FOLDER,
	new Listener() {
	public void handleEvent(Event e) {
	validateLinkedResource();
	firstLinkCheck = false;
	}
	});
	setTitle(WorkbenchMessages.getString("NewFolderDialog.title")); //$NON-NLS-1$
	setShellStyle(getShellStyle() \| SWT.RESIZE);
	setStatusLineAboveButtons(true);
	}
	/* (non-Javadoc)
	* Method declared in Window.
	*/
	protected void configureShell(Shell shell) {
	super.configureShell(shell);
	WorkbenchHelp.setHelp(shell, IHelpContextIds.NEW_FOLDER_DIALOG);
	}
	/**
	* @see org.eclipse.jface.window.Window#create()
	*/
	public void create() {
	super.create();
	// initially disable the ok button since we don't preset the
	// folder name field
	getButton(IDialogConstants.OK_ID).setEnabled(false);
	}
	/* (non-Javadoc)
	* Method declared on Dialog.
	*/
	protected Control createDialogArea(Composite parent) {
	Font font = parent.getFont();
	Composite composite = (Composite) super.createDialogArea(parent);
	composite.setLayout(new GridLayout());
	composite.setLayoutData(new GridData(GridData.FILL_BOTH));

	createFolderNameGroup(composite);
	linkedResourceGroup.createContents(composite);
	return composite;
	}
	/**
	* Creates the folder name specification controls.
	*
	* @param parent the parent composite
	*/
	private void createFolderNameGroup(Composite parent) {
	Font font = parent.getFont();
	// project specification group
	Composite folderGroup = new Composite(parent,SWT.NONE);
	GridLayout layout = new GridLayout();
	layout.numColumns = 2;
	folderGroup.setLayout(layout);
	folderGroup.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

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

	// new project name entry field
	folderNameField = new Text(folderGroup, SWT.BORDER);
	GridData data = new GridData(GridData.FILL_HORIZONTAL);
	data.widthHint = IDialogConstants.ENTRY_FIELD_WIDTH;
	folderNameField.setLayoutData(data);
	folderNameField.setFont(font);
	folderNameField.addListener(SWT.Modify, new Listener() {
	public void handleEvent(Event event) {
	validateLinkedResource();
	}
	});
	}
	/**
	* Creates a folder resource handle for the folder with the given name.
	* The folder handle is created relative to the container specified during
	* object creation.
	*
	* @param folderName the name of the folder resource to create a handle for
	* @return the new folder resource handle
	*/
	private IFolder createFolderHandle(String folderName) {
	IWorkspaceRoot workspaceRoot = container.getWorkspace().getRoot();
	IPath folderPath = container.getFullPath().append(folderName);
	IFolder folderHandle = workspaceRoot.getFolder(folderPath);

	return folderHandle;
	}
	/**
	* Creates a new folder with the given name and optionally linking to
	* the specified link target.
	*
	* @param folderName name of the new folder
	* @param linkTargetName name of the link target folder. may be null.
	* @return IFolder the new folder
	*/
	private IFolder createNewFolder(String folderName, final String linkTargetName) {
	final IFolder folderHandle = createFolderHandle(folderName);

	WorkspaceModifyOperation operation = new WorkspaceModifyOperation() {
	public void execute(IProgressMonitor monitor) throws CoreException {
	try {
	monitor.beginTask(WorkbenchMessages.getString("NewFolderDialog.progress"), 2000); //$NON-NLS-1$
	if (monitor.isCanceled())
	throw new OperationCanceledException();
	if (linkTargetName == null)
	folderHandle.create(false, true, monitor);
	else
	folderHandle.createLink(new Path(linkTargetName), IResource.ALLOW_MISSING_LOCAL, monitor);
	if (monitor.isCanceled())
	throw new OperationCanceledException();
	} finally {
	monitor.done();
	}
	}
	};

	try {
	new ProgressMonitorDialog(getShell()).run(true, true, operation);
	} catch (InterruptedException exception) {
	return null;
	} catch (InvocationTargetException exception) {
	if (exception.getTargetException() instanceof CoreException) {
	ErrorDialog.openError(
	getShell(),
	WorkbenchMessages.getString("NewFolderDialog.errorTitle"), //$NON-NLS-1$
	null, // no special message
	((CoreException) exception.getTargetException()).getStatus());
	}
	else {
	// CoreExceptions are handled above, but unexpected runtime exceptions and errors may still occur.
	WorkbenchPlugin.log(MessageFormat.format(
	"Exception in {0}.createNewFolder(): {1}", //$NON-NLS-1$
	new Object[] {getClass().getName(), exception.getTargetException()}));
	MessageDialog.openError(
	getShell(),
	WorkbenchMessages.getString("NewFolderDialog.errorTitle"), //$NON-NLS-1$
	WorkbenchMessages.format("NewFolderDialog.internalError", //$NON-NLS-1$
	new Object[] {exception.getTargetException().getMessage()}));
	}
	return null;
	}
	return folderHandle;
	}
	/**
	* Creates the folder using the name and link target entered
	* by the user.
	* Sets the dialog result to the created folder.
	*/
	protected void computeResult() {
	String linkTarget = linkedResourceGroup.getLinkTarget();
	IFolder folder = createNewFolder(folderNameField.getText(), linkTarget);
	if(folder == null)
	return;

	setSelectionResult(new IFolder[] {folder});
	}
	/**
	* Update the dialog's status line to reflect the given status. It is safe to call
	* this method before the dialog has been opened.
	*/
	protected void updateStatus(IStatus status) {
	if (firstLinkCheck && status != null) {
	// don't show the first validation result as an error.
	// fixes bug 29659
	Status newStatus = new Status(
	IStatus.OK,
	status.getPlugin(),
	status.getCode(),
	status.getMessage(),
	status.getException());
	super.updateStatus(newStatus);
	}
	else {
	super.updateStatus(status);
	}
	}
	/**
	* Update the dialog's status line to reflect the given status. It is safe to call
	* this method before the dialog has been opened.
	*/
	private void updateStatus(int severity, String message) {
	updateStatus(
	new Status(
	severity,
	WorkbenchPlugin.getDefault().getDescriptor().getUniqueIdentifier(),
	severity,
	message,
	null));
	}
	/**
	* Checks whether the folder name and link location are valid.
	*
	* @return null if the folder name and link location are valid.
	* a message that indicates the problem otherwise.
	*/
	private void validateLinkedResource() {
	boolean valid = validateFolderName();

	if (valid) {
	IFolder linkHandle = createFolderHandle(folderNameField.getText());
	IStatus status = linkedResourceGroup.validateLinkLocation(linkHandle);

	if (status.getSeverity() != IStatus.ERROR)
	getOkButton().setEnabled(true);
	else
	getOkButton().setEnabled(false);

	if (status.isOK() == false)
	updateStatus(status);
	}
	}
	/**
	* Checks if the folder name is valid.
	*
	* @return null if the new folder name is valid.
	* a message that indicates the problem otherwise.
	*/
	private boolean validateFolderName() {
	String name = folderNameField.getText();
	IWorkspace workspace = container.getWorkspace();
	IStatus nameStatus = workspace.validateName(name, IResource.FOLDER);

	if ("".equals(name)) {
	updateStatus(IStatus.ERROR, WorkbenchMessages.getString("NewFolderDialog.folderNameEmpty")); //$NON-NLS-1$
	return false;
	}
	if (nameStatus.isOK() == false) {
	updateStatus(nameStatus);
	return false;
	}
	IFolder newFolder = container.getFolder(new Path(name));
	if (newFolder.exists()) {
	updateStatus(IStatus.ERROR, WorkbenchMessages.format("NewFolderDialog.alreadyExists", new Object[] { name })); //$NON-NLS-1$
	return false;
	}
	updateStatus(IStatus.OK, ""); //$NON-NLS-1$
	return true;
	}
	}