| /******************************************************************************* |
| * Copyright (c) 2000, 2008 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.exampleprojects; |
| |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.layout.GridData; |
| import org.eclipse.swt.layout.GridLayout; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Label; |
| import org.eclipse.swt.widgets.Text; |
| |
| import org.eclipse.core.runtime.IConfigurationElement; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Status; |
| |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.core.resources.IWorkspace; |
| import org.eclipse.core.resources.ResourcesPlugin; |
| |
| import org.eclipse.jface.dialogs.Dialog; |
| import org.eclipse.jface.dialogs.DialogPage; |
| import org.eclipse.jface.wizard.WizardPage; |
| |
| public class ExampleProjectCreationWizardPage extends WizardPage { |
| |
| private IStatus fCurrStatus; |
| |
| private boolean fPageVisible; |
| |
| private IConfigurationElement fConfigurationElement; |
| |
| private String fNameLabel; |
| private String fProjectName; |
| |
| private Text fTextControl; |
| |
| public ExampleProjectCreationWizardPage(int pageNumber, IConfigurationElement elem) { |
| super("page" + pageNumber); //$NON-NLS-1$ |
| fCurrStatus= createStatus(IStatus.OK, ""); //$NON-NLS-1$ |
| |
| fConfigurationElement= elem; |
| |
| setTitle(getAttribute(elem, "pagetitle")); //$NON-NLS-1$ |
| setDescription(getAttribute(elem, "pagedescription")); //$NON-NLS-1$ |
| |
| fNameLabel= getAttribute(elem, "label"); //$NON-NLS-1$ |
| fProjectName= getAttribute(elem, "name"); //$NON-NLS-1$ |
| |
| } |
| |
| private String getAttribute(IConfigurationElement elem, String tag) { |
| String res= elem.getAttribute(tag); |
| if (res == null) { |
| return '!' + tag + '!'; |
| } |
| return res; |
| } |
| |
| @Override |
| public void createControl(Composite parent) { |
| Composite composite= new Composite(parent, SWT.NONE); |
| GridLayout gd= new GridLayout(); |
| gd.numColumns= 2; |
| composite.setLayout(gd); |
| |
| Label label= new Label(composite, SWT.LEFT); |
| label.setText(fNameLabel); |
| label.setLayoutData(new GridData()); |
| |
| fTextControl= new Text(composite, SWT.SINGLE | SWT.BORDER); |
| fTextControl.setText(fProjectName); |
| fTextControl.setSelection(fProjectName.length()); |
| fTextControl.addModifyListener(e -> { |
| if (!fTextControl.isDisposed()) { |
| validateText(fTextControl.getText()); |
| } |
| }); |
| fTextControl.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); |
| |
| fTextControl.setFocus(); |
| |
| setControl(composite); |
| Dialog.applyDialogFont(composite); |
| |
| validateText(fProjectName); |
| } |
| |
| private void validateText(String text) { |
| IWorkspace workspace= ResourcesPlugin.getWorkspace(); |
| IStatus status= workspace.validateName(text, IResource.PROJECT); |
| if (status.isOK()) { |
| if (workspace.getRoot().getProject(text).exists()) { |
| status= createStatus(IStatus.ERROR, ExampleProjectMessages.ExampleProjectCreationWizardPage_error_alreadyexists); |
| } |
| } |
| updateStatus(status); |
| |
| fProjectName= text; |
| } |
| |
| |
| /* |
| * @see WizardPage#becomesVisible |
| */ |
| @Override |
| public void setVisible(boolean visible) { |
| super.setVisible(visible); |
| fPageVisible= visible; |
| // policy: wizards are not allowed to come up with an error message |
| if (visible && fCurrStatus.matches(IStatus.ERROR)) { |
| // keep the error state, but remove the message |
| fCurrStatus= createStatus(IStatus.ERROR, ""); //$NON-NLS-1$ |
| } |
| updateStatus(fCurrStatus); |
| } |
| |
| /* |
| * Updates the status line and the ok button depending on the status |
| */ |
| private void updateStatus(IStatus status) { |
| fCurrStatus= status; |
| setPageComplete(!status.matches(IStatus.ERROR)); |
| if (fPageVisible) { |
| applyToStatusLine(this, status); |
| } |
| } |
| |
| /* |
| * Applies the status to a dialog page |
| */ |
| private static void applyToStatusLine(DialogPage page, IStatus status) { |
| String errorMessage= null; |
| String warningMessage= null; |
| String statusMessage= status.getMessage(); |
| if (statusMessage.length() > 0) { |
| if (status.matches(IStatus.ERROR)) { |
| errorMessage= statusMessage; |
| } else if (!status.isOK()) { |
| warningMessage= statusMessage; |
| } |
| } |
| page.setErrorMessage(errorMessage); |
| page.setMessage(warningMessage); |
| } |
| |
| |
| private static IStatus createStatus(int severity, String message) { |
| return new Status(severity, ExampleProjectsPlugin.getPluginId(), severity, message, null); |
| } |
| |
| /** |
| * @return Returns the name entered by the user |
| */ |
| @Override |
| public String getName() { |
| return fProjectName; |
| } |
| |
| /** |
| * Returns the configuration element of this page. |
| * @return Returns a IConfigurationElement |
| */ |
| public IConfigurationElement getConfigurationElement() { |
| return fConfigurationElement; |
| } |
| |
| } |
| |