Java tutorial
/******************************************************************************* * Copyright (c) 2015, 2016 Red Hat Inc. 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: * Red Hat - Initial Contribution *******************************************************************************/ package org.eclipse.linuxtools.internal.docker.ui.launch; import java.beans.PropertyChangeEvent; import java.beans.PropertyChangeListener; import java.util.ArrayList; import java.util.Iterator; import java.util.List; import org.eclipse.core.databinding.beans.BeanProperties; import org.eclipse.core.runtime.CoreException; import org.eclipse.debug.core.ILaunchConfiguration; import org.eclipse.debug.core.ILaunchConfigurationWorkingCopy; import org.eclipse.debug.ui.AbstractLaunchConfigurationTab; import org.eclipse.jface.databinding.viewers.ObservableListContentProvider; import org.eclipse.jface.databinding.viewers.ViewerSupport; import org.eclipse.jface.dialogs.IDialogConstants; import org.eclipse.jface.layout.GridDataFactory; import org.eclipse.jface.layout.GridLayoutFactory; import org.eclipse.jface.viewers.ISelectionChangedListener; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.TableViewer; import org.eclipse.jface.viewers.TableViewerColumn; import org.eclipse.linuxtools.internal.docker.ui.SWTImagesFactory; import org.eclipse.linuxtools.internal.docker.ui.wizards.ContainerLinkDialog; import org.eclipse.linuxtools.internal.docker.ui.wizards.ImageRunSelectionModel; import org.eclipse.linuxtools.internal.docker.ui.wizards.ImageRunSelectionModel.ContainerLinkModel; import org.eclipse.linuxtools.internal.docker.ui.wizards.WizardMessages; import org.eclipse.swt.SWT; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.events.SelectionListener; import org.eclipse.swt.graphics.Image; 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.swt.widgets.Table; import org.eclipse.swt.widgets.TableColumn; public class RunImageLinksTab extends AbstractLaunchConfigurationTab { private static final String TAB_NAME = "RunLinksTab.name"; //$NON-NLS-1$ private static final int COLUMNS = 3; private ImageRunSelectionModel model = null; public RunImageLinksTab(ImageRunSelectionModel model) { this.model = model; } @Override public void createControl(Composite parent) { final Composite container = new Composite(parent, SWT.NONE); GridDataFactory.fillDefaults().align(SWT.FILL, SWT.FILL).span(1, 1).grab(true, false).applyTo(container); GridLayoutFactory.fillDefaults().numColumns(COLUMNS).margins(6, 6).applyTo(container); if (model == null) { setErrorMessage(LaunchMessages.getString("NoConnectionError.msg")); } else { setErrorMessage(null); createLinkSettingsSection(container); } setControl(container); } private TableViewerColumn createTableViewerColumn(final TableViewer tableViewer, final String title, final int width) { final TableViewerColumn viewerColumn = new TableViewerColumn(tableViewer, SWT.NONE); final TableColumn column = viewerColumn.getColumn(); if (title != null) { column.setText(title); } column.setWidth(width); return viewerColumn; } private void createLinkSettingsSection(final Composite container) { GridDataFactory.fillDefaults().align(SWT.FILL, SWT.CENTER).grab(false, false).span(3, 1) .applyTo(new Label(container, SWT.NONE)); final Label linksLabel = new Label(container, SWT.NONE); linksLabel.setText(WizardMessages.getString("ImageRunSelectionPage.links")); GridDataFactory.fillDefaults().align(SWT.FILL, SWT.CENTER).grab(false, false).span(COLUMNS, 1) .applyTo(linksLabel); final TableViewer linksTableViewer = createLinksTable(container); GridDataFactory.fillDefaults().align(SWT.FILL, SWT.TOP).grab(true, true).hint(200, 100) .applyTo(linksTableViewer.getTable()); // buttons final Composite buttonsContainers = new Composite(container, SWT.NONE); GridDataFactory.fillDefaults().align(SWT.FILL, SWT.TOP).grab(false, false).applyTo(buttonsContainers); GridLayoutFactory.fillDefaults().numColumns(1).margins(0, 0).spacing(SWT.DEFAULT, 0) .applyTo(buttonsContainers); final Button addButton = new Button(buttonsContainers, SWT.NONE); GridDataFactory.fillDefaults().align(SWT.FILL, SWT.TOP).grab(true, false).applyTo(addButton); addButton.setText(WizardMessages.getString("ImageRunSelectionPage.addButton")); //$NON-NLS-1$ addButton.addSelectionListener(onAddLink()); final Button editButton = new Button(buttonsContainers, SWT.NONE); GridDataFactory.fillDefaults().align(SWT.FILL, SWT.TOP).grab(true, false).applyTo(editButton); editButton.setText(WizardMessages.getString("ImageRunSelectionPage.editButton")); //$NON-NLS-1$ editButton.setEnabled(false); editButton.addSelectionListener(onEditLink(linksTableViewer)); final Button removeButton = new Button(buttonsContainers, SWT.NONE); GridDataFactory.fillDefaults().align(SWT.FILL, SWT.TOP).grab(true, false).applyTo(removeButton); removeButton.setText(WizardMessages.getString("ImageRunSelectionPage.remove")); //$NON-NLS-1$ removeButton.addSelectionListener(onRemoveLinks(linksTableViewer)); removeButton.setEnabled(false); ViewerSupport.bind(linksTableViewer, model.getLinks(), BeanProperties.values(ContainerLinkModel.class, new String[] { ContainerLinkModel.CONTAINER_NAME, ContainerLinkModel.CONTAINER_ALIAS })); // disable the edit and removeButton if the table is empty linksTableViewer.addSelectionChangedListener(onSelectionChanged(editButton, removeButton)); } private ISelectionChangedListener onSelectionChanged(final Button... targetButtons) { return e -> { if (e.getSelection().isEmpty()) { setControlsEnabled(targetButtons, false); } else { setControlsEnabled(targetButtons, true); } updateLaunchConfigurationDialog(); }; } private TableViewer createLinksTable(final Composite container) { final Table table = new Table(container, SWT.BORDER | SWT.FULL_SELECTION | SWT.V_SCROLL | SWT.H_SCROLL); final TableViewer tableViewer = new TableViewer(table); table.setHeaderVisible(true); table.setLinesVisible(true); createTableViewerColumn(tableViewer, WizardMessages.getString("ImageRunSelectionPage.containerNameColumn"), //$NON-NLS-1$ 200); createTableViewerColumn(tableViewer, WizardMessages.getString("ImageRunSelectionPage.aliasColumn"), //$NON-NLS-1$ 150); tableViewer.setContentProvider(new ObservableListContentProvider()); return tableViewer; } private SelectionListener onAddLink() { return new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { final ContainerLinkDialog dialog = new ContainerLinkDialog(getShell(), model.getSelectedConnection()); dialog.create(); if (dialog.open() == IDialogConstants.OK_ID) { model.addLink(dialog.getContainerName(), dialog.getContainerAlias()); } updateLaunchConfigurationDialog(); } }; } private SelectionListener onEditLink(final TableViewer linksTableViewer) { return new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { final IStructuredSelection selection = linksTableViewer.getStructuredSelection(); final ContainerLinkModel selectedContainerLink = (ContainerLinkModel) selection.getFirstElement(); final ContainerLinkDialog dialog = new ContainerLinkDialog(getShell(), model.getSelectedConnection(), selectedContainerLink); dialog.create(); if (dialog.open() == IDialogConstants.OK_ID) { selectedContainerLink.setContainerName(dialog.getContainerName()); selectedContainerLink.setContainerAlias(dialog.getContainerAlias()); linksTableViewer.refresh(); updateLaunchConfigurationDialog(); } } }; } private SelectionListener onRemoveLinks(final TableViewer linksTableViewer) { return new SelectionAdapter() { @Override public void widgetSelected(final SelectionEvent e) { final IStructuredSelection selection = linksTableViewer.getStructuredSelection(); for (@SuppressWarnings("unchecked") Iterator<ContainerLinkModel> iterator = selection.iterator(); iterator.hasNext();) { model.removeLink(iterator.next()); } updateLaunchConfigurationDialog(); } }; } private static void setControlsEnabled(final Control[] controls, final boolean enabled) { for (Control control : controls) { control.setEnabled(enabled); } } @Override public Image getImage() { return SWTImagesFactory.get(SWTImagesFactory.IMG_CONTAINER_LINK); } @Override public void setDefaults(final ILaunchConfigurationWorkingCopy configuration) { } @Override public void initializeFrom(final ILaunchConfiguration configuration) { if (model == null) return; try { // model needs to be recycled model.removeLinks(); final List<String> containerLinks = configuration .getAttribute(IRunDockerImageLaunchConfigurationConstants.LINKS, new ArrayList<String>()); for (String containerLink : containerLinks) { model.addLink(ImageRunSelectionModel.ContainerLinkModel.createContainerLinkModel(containerLink)); } } catch (CoreException e) { // do nothing } // update the underlying launch config working copy on model // changes. model.addPropertyChangeListener(new LaunchConfigurationChangeListener()); } @Override public void performApply(ILaunchConfigurationWorkingCopy configuration) { if (model == null) return; ArrayList<String> linksList = new ArrayList<>(); for (Object o : model.getLinks()) { ImageRunSelectionModel.ContainerLinkModel m = (ImageRunSelectionModel.ContainerLinkModel) o; linksList.add(m.toString()); } configuration.setAttribute(IRunDockerImageLaunchConfigurationConstants.LINKS, linksList); } @Override public String getName() { return LaunchMessages.getString(TAB_NAME); } private class LaunchConfigurationChangeListener implements PropertyChangeListener { @Override public void propertyChange(final PropertyChangeEvent evt) { updateLaunchConfigurationDialog(); } } }