Java tutorial
/******************************************************************************* * Copyright (c) 2003, 2007 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 * * Contributors: * IBM Corporation - initial API and implementation *******************************************************************************/ package org.eclipse.jst.servlet.ui.internal.wizard; import java.util.ArrayList; import java.util.Arrays; import java.util.List; import org.eclipse.jface.viewers.CheckStateChangedEvent; import org.eclipse.jface.viewers.CheckboxTableViewer; import org.eclipse.jface.viewers.ICheckStateListener; import org.eclipse.jface.viewers.ISelectionChangedListener; import org.eclipse.jface.viewers.SelectionChangedEvent; import org.eclipse.jface.viewers.TableLayout; import org.eclipse.jst.j2ee.datamodel.properties.IJ2EEComponentImportDataModelProperties; import org.eclipse.jst.j2ee.internal.archive.ArchiveWrapper; import org.eclipse.jst.j2ee.internal.plugin.J2EEUIPlugin; import org.eclipse.jst.j2ee.internal.plugin.J2EEUIPluginIcons; import org.eclipse.jst.j2ee.internal.wizard.J2EEImportPage; import org.eclipse.jst.j2ee.web.datamodel.properties.IWebComponentImportDataModelProperties; import org.eclipse.jst.servlet.ui.IWebUIContextIds; import org.eclipse.jst.servlet.ui.internal.plugin.WEBUIMessages; import org.eclipse.swt.SWT; 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.wst.common.frameworks.datamodel.DataModelEvent; import org.eclipse.wst.common.frameworks.datamodel.IDataModel; import org.eclipse.wst.common.frameworks.datamodel.IDataModelListener; /** * @author cbridgha * * To change the template for this generated type comment go to Window>Preferences>Java>Code * Generation>Code and Comments */ public class WebComponentImportWebLibsPage extends J2EEImportPage { private Button deselectAllButton; private Button selectAllButton; protected ArchiveWrapper archiveWrapper; public CheckboxTableViewer availableJARsViewer; public boolean utilJarSelectionChanged = false; /** * @param model * @param pageName */ public WebComponentImportWebLibsPage(IDataModel model, String pageName) { super(model, pageName); setTitle(WEBUIMessages.WEB_IMPORT_WEB_LIB_PG_TITLE); setDescription(WEBUIMessages.WEB_IMPORT_WEB_LIB_PG_DESC); setImageDescriptor( J2EEUIPlugin.getDefault().getImageDescriptor(J2EEUIPluginIcons.WEB_IMPORT_WIZARD_BANNER)); } /* * (non-Javadoc) * * @see org.eclipse.wst.common.frameworks.internal.ui.wizard.WTPWizardPage#createTopLevelComposite(org.eclipse.swt.widgets.Composite) */ @Override protected Composite createTopLevelComposite(Composite parent) { setInfopopID(IWebUIContextIds.WAR_IMPORT_PAGE2); Composite composite = new Composite(parent, SWT.NONE); GridLayout layout = new GridLayout(); layout.numColumns = 1; composite.setLayout(layout); composite.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); createAvailableJarsList(composite); createButtonsGroup(composite); return composite; } /* * Updates the enable state of the all buttons */ protected void updateButtonEnablements() { utilJarSelectionChanged = true; } protected void createAvailableJarsList(Composite listGroup) { availableJARsViewer = CheckboxTableViewer.newCheckList(listGroup, SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL); GridData gData = new GridData(GridData.FILL_BOTH | GridData.GRAB_HORIZONTAL | GridData.GRAB_VERTICAL); gData.widthHint = 200; gData.heightHint = 80; availableJARsViewer.getControl().setLayoutData(gData); AvailableWebLibProvider libsProvider = new AvailableWebLibProvider(); availableJARsViewer.setContentProvider(libsProvider); availableJARsViewer.setLabelProvider(libsProvider); availableJARsViewer.addCheckStateListener(new ICheckStateListener() { public void checkStateChanged(CheckStateChangedEvent event) { availableJARCheckStateChanged(event); } }); availableJARsViewer.addSelectionChangedListener(new ISelectionChangedListener() { public void selectionChanged(SelectionChangedEvent event) { updateButtonEnablements(); } }); TableLayout tableLayout = new TableLayout(); availableJARsViewer.getTable().setLayout(tableLayout); availableJARsViewer.getTable().setHeaderVisible(false); availableJARsViewer.getTable().setLinesVisible(false); model.addListener(new IDataModelListener() { public void propertyChanged(DataModelEvent event) { if (event.getPropertyName() .equals(IWebComponentImportDataModelProperties.WEB_LIB_ARCHIVES_SELECTED)) { availableJARsViewer.setCheckedElements(((List) model .getProperty(IWebComponentImportDataModelProperties.WEB_LIB_ARCHIVES_SELECTED)) .toArray()); } } }); } private void handleDeselectAllButtonPressed() { ArrayList emptySelection = new ArrayList(2); model.setProperty(IWebComponentImportDataModelProperties.WEB_LIB_ARCHIVES_SELECTED, emptySelection); } private void handleSelectAllButtonPressed() { ArrayList allSelection = new ArrayList(2); Object selection = null; for (int i = 0; (null != (selection = availableJARsViewer.getElementAt(i))); i++) { allSelection.add(selection); } model.setProperty(IWebComponentImportDataModelProperties.WEB_LIB_ARCHIVES_SELECTED, allSelection); } protected void createButtonsGroup(org.eclipse.swt.widgets.Composite parent) { Composite buttonGroup = new Composite(parent, SWT.NONE); GridLayout layout = new GridLayout(); layout.numColumns = 4; buttonGroup.setLayout(layout); buttonGroup.setLayoutData(new GridData(GridData.FILL_BOTH)); selectAllButton = new Button(buttonGroup, SWT.PUSH); selectAllButton.setText(WEBUIMessages.WAR_IMPORT_SELECT_ALL_LIBS_BUTTON); GridData gd = new GridData(GridData.HORIZONTAL_ALIGN_FILL); gd.horizontalSpan = 1; gd.heightHint = SWT.DEFAULT; gd.widthHint = SWT.DEFAULT; selectAllButton.setLayoutData(gd); selectAllButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { handleSelectAllButtonPressed(); } }); deselectAllButton = new Button(buttonGroup, SWT.PUSH); deselectAllButton.setText(WEBUIMessages.WAR_IMPORT_DESELECT_ALL_LIBS_BUTTON); gd = new GridData(GridData.HORIZONTAL_ALIGN_FILL); gd.horizontalSpan = 2; gd.heightHint = SWT.DEFAULT; gd.widthHint = SWT.DEFAULT; deselectAllButton.setLayoutData(gd); deselectAllButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { handleDeselectAllButtonPressed(); } }); } private void refreshEARFileIfNecessary() { if (isEARFileChanged()) { archiveWrapper = (ArchiveWrapper) model .getProperty(IJ2EEComponentImportDataModelProperties.ARCHIVE_WRAPPER); refresh(); } } protected void setJARsCompositeEnabled(boolean enabled) { availableJARsViewer.getTable().setEnabled(enabled); availableJARsViewer.setAllChecked(false); availableJARsViewer.setAllGrayed(!enabled); selectAllButton.setEnabled(enabled); deselectAllButton.setEnabled(enabled); } private void refresh() { availableJARsViewer.setInput(archiveWrapper); } public boolean isEARFileChanged() { return archiveWrapper != model.getProperty(IJ2EEComponentImportDataModelProperties.ARCHIVE_WRAPPER); } @Override protected void enter() { super.enter(); refreshEARFileIfNecessary(); } public void availableJARCheckStateChanged(CheckStateChangedEvent event) { model.setProperty(IWebComponentImportDataModelProperties.WEB_LIB_ARCHIVES_SELECTED, getJARsForProjects()); validatePage(); } public List getJARsForProjects() { refreshEARFileIfNecessary(); List result = new ArrayList(); result.addAll(Arrays.asList(availableJARsViewer.getCheckedElements())); return result; } protected boolean isNullOrEmpty(String aString) { return aString == null || aString.length() == 0; } @Override protected String[] getValidationPropertyNames() { return new String[] {}; } @Override protected void restoreWidgetValues() { // This page doesn't implement... } @Override public void storeDefaultSettings() { // This page doesn't implement... } }