Java tutorial
/******************************************************************************* * Copyright (c) 2012 Sonatype, Inc. * 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: * Sonatype, Inc. - initial API and implementation *******************************************************************************/ package org.eclipse.m2e.editor.xml.internal.dialogs; import java.util.Collection; import org.eclipse.core.runtime.IStatus; import org.eclipse.core.runtime.Status; import org.eclipse.jface.viewers.ILabelProvider; import org.eclipse.jface.viewers.ILabelProviderListener; import org.eclipse.jface.viewers.ISelection; import org.eclipse.jface.viewers.ISelectionChangedListener; import org.eclipse.jface.viewers.IStructuredContentProvider; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.SelectionChangedEvent; import org.eclipse.jface.viewers.StructuredSelection; import org.eclipse.jface.viewers.TableViewer; import org.eclipse.jface.viewers.Viewer; import org.eclipse.jface.viewers.ViewerFilter; import org.eclipse.swt.SWT; import org.eclipse.swt.events.ModifyEvent; import org.eclipse.swt.events.ModifyListener; import org.eclipse.swt.events.MouseAdapter; import org.eclipse.swt.events.MouseEvent; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.graphics.Image; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.Table; import org.eclipse.swt.widgets.Text; import org.apache.maven.project.MavenProject; import org.eclipse.m2e.core.MavenPlugin; import org.eclipse.m2e.core.project.IMavenProjectFacade; import org.eclipse.m2e.core.ui.internal.components.PomHierarchyComposite; import org.eclipse.m2e.core.ui.internal.dialogs.AbstractMavenDialog; import org.eclipse.m2e.editor.xml.MvnIndexPlugin; import org.eclipse.m2e.editor.xml.internal.Messages; @SuppressWarnings("restriction") public class SelectSPDXLicenseDialog extends AbstractMavenDialog { /*package*/IMavenProjectFacade targetProject; /*package*/SPDXLicense license; /*package*/final IMavenProjectFacade project; /*package*/static final IStatus STATUS_NO_LICENSE_SELECTION = new Status(IStatus.ERROR, MvnIndexPlugin.PLUGIN_ID, Messages.SelectSPDXLicenseDialog_noLicenseSelected_status); /*package*/static final IStatus STATUS_NO_WORKSPACE_POM_SELECTION = new Status(IStatus.ERROR, MvnIndexPlugin.PLUGIN_ID, Messages.SelectSPDXLicenseDialog_noWorkspacePomSelected_status); public SelectSPDXLicenseDialog(Shell parentShell, IMavenProjectFacade project) { super(parentShell, SelectSPDXLicenseDialog.class.getName()); setStatusLineAboveButtons(true); setTitle(Messages.SelectSPDXLicenseDialog_Title); this.project = project; this.targetProject = project; updateStatus(STATUS_NO_LICENSE_SELECTION); } @Override protected Control createDialogArea(Composite parent) { Composite container = (Composite) super.createDialogArea(parent); Label lblLicenseNameFilter = new Label(container, SWT.NONE); lblLicenseNameFilter.setText(Messages.SelectSPDXLicenseDialog_lblLicenseNameFilter_text); final Text licenseFilter = new Text(container, SWT.BORDER | SWT.SEARCH); licenseFilter.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1)); Label lblLicenses = new Label(container, SWT.NONE); lblLicenses.setText(Messages.SelectSPDXLicenseDialog_lblLicenses_text); final TableViewer licensesViewer = new TableViewer(container, SWT.BORDER | SWT.FULL_SELECTION); Table licensesTable = licensesViewer.getTable(); licensesTable.addMouseListener(new MouseAdapter() { @Override public void mouseDoubleClick(MouseEvent e) { handleDoubleClick(); } }); licensesTable.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { ISelection selection = licensesViewer.getSelection(); if (selection instanceof IStructuredSelection && !selection.isEmpty()) { license = (SPDXLicense) ((IStructuredSelection) selection).getFirstElement(); } else { license = null; } updateStatus(); } }); GridData gd_licensesTable = new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1); gd_licensesTable.heightHint = 400; licensesTable.setLayoutData(gd_licensesTable); licensesViewer.setContentProvider(new IStructuredContentProvider() { public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { } public void dispose() { } public Object[] getElements(Object inputElement) { if (inputElement instanceof Collection<?>) { return ((Collection<?>) inputElement).toArray(); } return null; } }); licensesViewer.setLabelProvider(new ILabelProvider() { public void removeListener(ILabelProviderListener listener) { } public boolean isLabelProperty(Object element, String property) { return false; } public void dispose() { } public void addListener(ILabelProviderListener listener) { } public String getText(Object element) { if (element instanceof SPDXLicense) { return ((SPDXLicense) element).getName(); } return null; } public Image getImage(Object element) { return null; } }); licensesViewer.setInput(SPDXLicense.getStandardLicenses()); licenseFilter.addModifyListener(new ModifyListener() { public void modifyText(ModifyEvent e) { String text = licenseFilter.getText(); ViewerFilter[] filters; if (text != null && text.trim().length() > 0) { filters = new ViewerFilter[] { new LicenseFilter(text.trim()) }; } else { filters = new ViewerFilter[] {}; } licensesViewer.setFilters(filters); } }); Label lblPomxml = new Label(container, SWT.NONE); lblPomxml.setText(Messages.SelectSPDXLicenseDialog_lblPomxml_text); final PomHierarchyComposite parentComposite = new PomHierarchyComposite(container, SWT.NONE); parentComposite.addMouseListener(new MouseAdapter() { @Override public void mouseDoubleClick(MouseEvent e) { handleDoubleClick(); } }); parentComposite.addSelectionChangedListener(new ISelectionChangedListener() { public void selectionChanged(SelectionChangedEvent event) { ISelection selection = parentComposite.getSelection(); if (selection instanceof IStructuredSelection && !selection.isEmpty()) { MavenProject mavenProject = (MavenProject) ((IStructuredSelection) selection).getFirstElement(); targetProject = MavenPlugin.getMavenProjectRegistry().getMavenProject(mavenProject.getGroupId(), mavenProject.getArtifactId(), mavenProject.getVersion()); updateStatus(); } } }); parentComposite.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1)); parentComposite.computeHeirarchy(project, null); // FIXME proper progress monitor parentComposite.setSelection(new StructuredSelection(parentComposite.getHierarchy().get(0))); return container; } public SPDXLicense getLicense() { return license; } public IMavenProjectFacade getTargetProject() { return targetProject; } protected void computeResult() { // TODO Auto-generated method computeResult } private static class LicenseFilter extends ViewerFilter { private final String text; public LicenseFilter(String text) { this.text = text.toLowerCase(); } public boolean select(Viewer viewer, Object parentElement, Object element) { if (element instanceof SPDXLicense) { return ((SPDXLicense) element).getName().toLowerCase().contains(text); } return false; } } /*package*/void updateStatus() { updateStatus(getStatus()); } private IStatus getStatus() { IStatus status; if (license == null) { status = STATUS_NO_LICENSE_SELECTION; } else if (targetProject == null) { status = STATUS_NO_WORKSPACE_POM_SELECTION; } else { status = Status.OK_STATUS; } return status; } /*package*/void handleDoubleClick() { if (getStatus().isOK()) { okPressed(); } } }