Java tutorial
/* * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). * All rights reserved. * This component and the accompanying materials are made available * under the terms of "Eclipse Public License v1.0" * which accompanies this distribution, and is available * at the URL "http://www.eclipse.org/legal/epl-v10.html". * * Initial Contributors: * Nokia Corporation - initial contribution. * * Contributors: * * Description: * */ package com.nokia.s60tools.creator.wizards; import org.eclipse.core.resources.IContainer; import org.eclipse.core.resources.IProject; import org.eclipse.core.resources.IResource; import org.eclipse.core.resources.ResourcesPlugin; import org.eclipse.core.runtime.Path; import org.eclipse.jface.dialogs.IDialogPage; import org.eclipse.jface.viewers.ISelection; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.wizard.WizardPage; 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.Composite; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Text; import org.eclipse.ui.PlatformUI; import org.eclipse.ui.dialogs.ContainerSelectionDialog; import com.nokia.s60tools.creator.CreatorHelpContextIDs; /** * The "New" wizard page allows setting the container for the new file as well * as the file name. The page will only accept file name without the extension * OR with the extension that matches the expected one (creatorxml). */ public class CreatorScriptNewWizardPage extends WizardPage { // // private members // private Text containerText; private Text fileText; private ISelection selection; /** * Constructor for SampleNewWizardPage. * * @param pageName */ public CreatorScriptNewWizardPage(ISelection selection) { super("wizardPage"); setTitle("Creator Script File"); setDescription( "This wizard creates a new file with *.creatorxml extension that can be opened by a Creator Script Editor."); this.selection = selection; } /** * Adding context sensitive help id:s to components * */ private void setHelps() { PlatformUI.getWorkbench().getHelpSystem().setHelp(containerText, CreatorHelpContextIDs.CREATOR_HELP_CREATE_SCRIPT); PlatformUI.getWorkbench().getHelpSystem().setHelp(fileText, CreatorHelpContextIDs.CREATOR_HELP_CREATE_SCRIPT); } /** * @see IDialogPage#createControl(Composite) */ public void createControl(Composite parent) { Composite container = new Composite(parent, SWT.NULL); GridLayout layout = new GridLayout(); container.setLayout(layout); layout.numColumns = 3; layout.verticalSpacing = 9; Label label = new Label(container, SWT.NULL); label.setText("&Project:"); containerText = new Text(container, SWT.BORDER | SWT.SINGLE); GridData gd = new GridData(GridData.FILL_HORIZONTAL); containerText.setLayoutData(gd); containerText.addModifyListener(new ModifyListener() { public void modifyText(ModifyEvent e) { dialogChanged(); } }); Button button = new Button(container, SWT.PUSH); button.setText("Browse..."); button.addSelectionListener(new SelectionAdapter() { public void widgetSelected(SelectionEvent e) { handleBrowse(); } }); label = new Label(container, SWT.NULL); label.setText("&File name:"); fileText = new Text(container, SWT.BORDER | SWT.SINGLE); gd = new GridData(GridData.FILL_HORIZONTAL); fileText.setLayoutData(gd); fileText.addModifyListener(new ModifyListener() { public void modifyText(ModifyEvent e) { dialogChanged(); } }); initialize(); dialogChanged(); setControl(container); setHelps(); } /** * Tests if the current workbench selection is a suitable container to use. */ private void initialize() { if (selection != null && selection.isEmpty() == false && selection instanceof IStructuredSelection) { IStructuredSelection ssel = (IStructuredSelection) selection; if (ssel.size() > 1) return; Object obj = ssel.getFirstElement(); if (obj instanceof IResource) { IContainer container; if (obj instanceof IContainer) container = (IContainer) obj; else container = ((IResource) obj).getParent(); containerText.setText(container.getFullPath().toString()); } } else { //If there is only one project in workspace, we can set that to container, because user has no option IProject projects[] = ResourcesPlugin.getWorkspace().getRoot().getProjects(); if (projects.length == 1) { containerText.setText(projects[0].getFullPath().makeAbsolute().toString()); } } fileText.setText("new_file.creatorxml"); } /** * Uses the standard container selection dialog to choose the new value for * the container field. */ private void handleBrowse() { ContainerSelectionDialog dialog = new ContainerSelectionDialog(getShell(), ResourcesPlugin.getWorkspace().getRoot(), false, "Select new file container"); if (dialog.open() == ContainerSelectionDialog.OK) { Object[] result = dialog.getResult(); if (result.length == 1) { containerText.setText(((Path) result[0]).toString()); } } } /** * Ensures that both text fields are set. */ private void dialogChanged() { IResource container = ResourcesPlugin.getWorkspace().getRoot().findMember(new Path(getContainerName())); String fileName = getFileName(); if (getContainerName().length() == 0) { updateStatus("File container must be specified"); return; } if (container == null || (container.getType() & (IResource.PROJECT | IResource.FOLDER)) == 0) { updateStatus("File container must exist"); return; } if (!container.isAccessible()) { updateStatus("Project must be writable"); return; } if (fileName.length() == 0) { updateStatus("File name must be specified"); return; } if (fileName.replace('\\', '/').indexOf('/', 1) > 0) { updateStatus("File name must be valid"); return; } int dotLoc = fileName.lastIndexOf('.'); if (dotLoc != -1) { String ext = fileName.substring(dotLoc + 1); if (ext.equalsIgnoreCase("creatorxml") == false) { updateStatus("File extension must be \"creatorxml\""); return; } } updateStatus(null); } /** * Update status to UI * @param message */ private void updateStatus(String message) { setErrorMessage(message); setPageComplete(message == null); } /** * Get project name * @return project name where file was created */ public String getContainerName() { return containerText.getText(); } /** * Get file name * @return file name greated */ public String getFileName() { return fileText.getText(); } }