Java tutorial
/******************************************************************************* * Copyright (c) 2011 Red Hat, Inc. * Distributed under license by Red Hat, Inc. All rights reserved. * This program is 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: * Red Hat, Inc. - initial API and implementation ******************************************************************************/ package org.jboss.tools.openshift.express.internal.ui.wizard.application; import org.eclipse.core.databinding.Binding; import org.eclipse.core.databinding.DataBindingContext; import org.eclipse.core.databinding.beans.BeanProperties; import org.eclipse.core.databinding.validation.IValidator; import org.eclipse.core.databinding.validation.ValidationStatus; import org.eclipse.core.runtime.IProgressMonitor; import org.eclipse.core.runtime.IStatus; import org.eclipse.core.runtime.Status; import org.eclipse.core.runtime.jobs.Job; import org.eclipse.jface.databinding.fieldassist.ControlDecorationSupport; import org.eclipse.jface.databinding.viewers.ViewerProperties; import org.eclipse.jface.layout.GridDataFactory; import org.eclipse.jface.layout.GridLayoutFactory; import org.eclipse.jface.viewers.TreeViewer; import org.eclipse.jface.wizard.IWizard; import org.eclipse.swt.SWT; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Label; import org.eclipse.ui.navigator.CommonViewer; import org.eclipse.ui.navigator.INavigatorContentService; import org.eclipse.ui.navigator.NavigatorContentServiceFactory; import org.jboss.tools.common.ui.WizardUtils; import org.jboss.tools.common.ui.databinding.DataBindingUtils; import org.jboss.tools.common.ui.databinding.ValueBindingBuilder; import org.jboss.tools.openshift.express.internal.ui.utils.Logger; import org.jboss.tools.openshift.express.internal.ui.wizard.application.details.ApplicationDetailsDialog; import org.jboss.tools.openshift.internal.common.ui.databinding.RequiredControlDecorationUpdater; import org.jboss.tools.openshift.internal.common.ui.wizard.AbstractOpenShiftWizardPage; import com.openshift.client.IApplication; /** * @author Andre Dietisheim * @author Xavier Coulon */ public class SelectApplicationWizardPage extends AbstractOpenShiftWizardPage { private static final String COMMON_VIEWER_ID = "org.jboss.tools.openshift.express.internal.ui.wizard.application.SelectApplicationWizardPage"; private final SelectApplicationWizardPageModel pageModel; private TreeViewer applicationsTreeViewer; public SelectApplicationWizardPage(OpenShiftApplicationWizardModel wizardModel, IWizard wizard) { super("Select Existing Application", "Please choose the existing application that you want to import.", "Select Existing Application", wizard); this.pageModel = new SelectApplicationWizardPageModel(wizardModel); } @Override protected void doCreateControls(Composite parent, DataBindingContext dbc) { GridDataFactory.fillDefaults().grab(true, true).align(SWT.FILL, SWT.FILL).applyTo(parent); GridLayoutFactory.fillDefaults().numColumns(2).applyTo(parent); Label existingApplicationsLabel = new Label(parent, SWT.NONE); existingApplicationsLabel.setText("Existing Applications:"); GridDataFactory.fillDefaults().align(SWT.LEFT, SWT.CENTER).span(2, 1).applyTo(existingApplicationsLabel); // applications tree this.applicationsTreeViewer = createApplicationsTree(parent, dbc); GridDataFactory.fillDefaults().align(SWT.FILL, SWT.FILL).grab(true, true).hint(SWT.DEFAULT, 200).span(1, 4) .applyTo(applicationsTreeViewer.getControl()); Binding selectedApplicationBinding = ValueBindingBuilder .bind(ViewerProperties.singlePostSelection().observe(applicationsTreeViewer)) .validatingAfterGet(new IValidator() { @Override public IStatus validate(Object value) { if (!(value instanceof IApplication)) { return ValidationStatus .cancel("Please choose the existing application that you want to import."); } return ValidationStatus.ok(); } }).to(BeanProperties.value(SelectApplicationWizardPageModel.PROPERTY_SELECTED_APPLICATION) .observe(pageModel)) .in(dbc); ControlDecorationSupport.create(selectedApplicationBinding, SWT.LEFT | SWT.TOP, null, new RequiredControlDecorationUpdater(true)); // buttons Button detailsButton = new Button(parent, SWT.PUSH); detailsButton.setText("De&tails..."); GridDataFactory.fillDefaults().align(SWT.FILL, SWT.TOP).hint(80, SWT.DEFAULT).applyTo(detailsButton); DataBindingUtils.bindEnablementToValidationStatus(detailsButton, IStatus.OK, dbc, selectedApplicationBinding); detailsButton.addSelectionListener(onDetails(dbc)); Control filler = new Label(parent, SWT.NONE); GridDataFactory.fillDefaults().applyTo(filler); Button refreshButton = new Button(parent, SWT.PUSH); refreshButton.setText("R&efresh"); GridDataFactory.fillDefaults().align(SWT.FILL, SWT.CENTER).applyTo(refreshButton); refreshButton.addSelectionListener(onRefresh(dbc)); filler = new Label(parent, SWT.NONE); GridDataFactory.fillDefaults().grab(false, true).applyTo(filler); } protected TreeViewer createApplicationsTree(Composite parent, DataBindingContext dbc) { CommonViewer commonViewer = new CommonViewer(COMMON_VIEWER_ID, parent, SWT.BORDER | SWT.SINGLE | SWT.V_SCROLL | SWT.H_SCROLL); INavigatorContentService contentService = NavigatorContentServiceFactory.INSTANCE .createContentService(COMMON_VIEWER_ID, commonViewer); contentService.createCommonContentProvider(); contentService.createCommonLabelProvider(); return commonViewer; } @Override protected void onPageActivated(DataBindingContext dbc) { pageModel.loadOpenShiftResources(); setViewerInput(pageModel); } private SelectionAdapter onRefresh(final DataBindingContext dbc) { return new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent event) { try { WizardUtils.runInWizard(new Job("Loading applications...") { @Override protected IStatus run(IProgressMonitor monitor) { pageModel.refresh(); setViewerInput(pageModel); return Status.OK_STATUS; } }, getContainer(), dbc); } catch (Exception e) { Logger.error("Failed to refresh applications list", e); // ignore } } }; } private SelectionAdapter onDetails(DataBindingContext dbc) { return new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { new ApplicationDetailsDialog(pageModel.getSelectedApplication(), getShell()).open(); } }; } private void setViewerInput(final SelectApplicationWizardPageModel pageModel) { getShell().getDisplay().syncExec(new Runnable() { @Override public void run() { applicationsTreeViewer.setInput(pageModel.getConnection()); } }); } public IApplication getSelectedApplication() { return pageModel.getSelectedApplication(); } }