/*******************************************************************************
* 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.wizards;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.eclipse.core.databinding.Binding;
import org.eclipse.core.databinding.DataBindingContext;
import org.eclipse.core.databinding.beans.BeanProperties;
import org.eclipse.core.databinding.observable.IChangeListener;
import org.eclipse.core.databinding.validation.ValidationStatus;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.jface.databinding.swt.ISWTObservableValue;
import org.eclipse.jface.databinding.swt.WidgetProperties;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.fieldassist.ComboContentAdapter;
import org.eclipse.jface.fieldassist.ContentProposal;
import org.eclipse.jface.fieldassist.ContentProposalAdapter;
import org.eclipse.jface.fieldassist.IContentProposal;
import org.eclipse.jface.fieldassist.IContentProposalProvider;
import org.eclipse.jface.layout.GridDataFactory;
import org.eclipse.jface.layout.GridLayoutFactory;
import org.eclipse.jface.viewers.ArrayContentProvider;
import org.eclipse.jface.viewers.ComboViewer;
import org.eclipse.linuxtools.docker.core.DockerConnectionManager;
import org.eclipse.linuxtools.docker.core.IDockerConnection;
import org.eclipse.linuxtools.docker.core.IDockerContainer;
import org.eclipse.linuxtools.internal.docker.ui.SWTImagesFactory;
import org.eclipse.linuxtools.internal.docker.ui.databinding.BaseDatabindingModel;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
/**
* {@link Dialog} to specify Docker Compose options at launch time.
*/
public class DockerComposeUpDialog extends Dialog {
private final DockerComposeUpModel model = new DockerComposeUpModel();
private final DataBindingContext dbc = new DataBindingContext();
/**
* Constructor.
*
* @param parentShell
* the parent {@link Shell}
*/
public DockerComposeUpDialog(final Shell parentShell) {
super(parentShell);
}
@Override
protected void configureShell(final Shell shell) {
super.configureShell(shell);
setShellStyle(getShellStyle() | SWT.RESIZE);
shell.setText(WizardMessages.getString("DockerComposeUpDialog.title")); //$NON-NLS-1$
}
@Override
protected Point getInitialSize() {
return new Point(400, super.getInitialSize().y);
}
@SuppressWarnings("unchecked")
@Override
protected Control createDialogArea(final Composite parent) {
final int COLUMNS = 2;
final Composite container = new Composite(parent, SWT.NONE);
GridDataFactory.fillDefaults().align(SWT.FILL, SWT.FILL)
.span(COLUMNS, 1).grab(true, false).applyTo(container);
GridLayoutFactory.fillDefaults().numColumns(COLUMNS).margins(10, 10)
.applyTo(container);
final Label explanationLabel = new Label(container, SWT.NONE);
explanationLabel.setText(
WizardMessages
.getString("DockerComposeUpDialog.explanationLabel")); //$NON-NLS-1$
GridDataFactory.fillDefaults().align(SWT.FILL, SWT.CENTER)
.span(COLUMNS, 1).grab(false, false).applyTo(explanationLabel);
final Label containerLabel = new Label(container, SWT.NONE);
containerLabel.setText(
WizardMessages
.getString("DockerComposeUpDialog.connectionLabel")); //$NON-NLS-1$
GridDataFactory.fillDefaults().align(SWT.FILL, SWT.CENTER)
.grab(false, false).applyTo(containerLabel);
final Combo containerSelectionCombo = new Combo(container, SWT.NONE);
GridDataFactory.fillDefaults().align(SWT.FILL, SWT.CENTER)
.grab(true, false).applyTo(containerSelectionCombo);
final ComboViewer connectionSelectionComboViewer = new ComboViewer(
containerSelectionCombo);
connectionSelectionComboViewer
.setContentProvider(new ArrayContentProvider());
final List<String> connectionNames = model.getConnectionNames();
connectionSelectionComboViewer.setInput(connectionNames);
new ContentProposalAdapter(containerSelectionCombo,
new ComboContentAdapter() {
@Override
public void insertControlContents(Control control,
String text, int cursorPosition) {
final Combo combo = (Combo) control;
final Point selection = combo.getSelection();
combo.setText(text);
selection.x = text.length();
selection.y = selection.x;
combo.setSelection(selection);
}
}, getConnectionNameContentProposalProvider(
containerSelectionCombo),
null, null);
final ISWTObservableValue connnectionNameObservable = WidgetProperties
.selection().observe(connectionSelectionComboViewer.getCombo());
// pre-select with first connection
if (!connectionNames.isEmpty()) {
model.setConnectionName(connectionNames.get(0));
}
// error message
final Composite errorContainer = new Composite(container, SWT.NONE);
GridDataFactory.fillDefaults().align(SWT.FILL, SWT.FILL)
.span(COLUMNS, 1).grab(true, true).applyTo(errorContainer);
GridLayoutFactory.fillDefaults().margins(6, 6).numColumns(2)
.applyTo(errorContainer);
final Label errorMessageIcon = new Label(errorContainer, SWT.NONE);
GridDataFactory.fillDefaults().align(SWT.FILL, SWT.CENTER)
.hint(20, SWT.DEFAULT).applyTo(errorMessageIcon);
final Label errorMessageLabel = new Label(errorContainer, SWT.NONE);
GridDataFactory.fillDefaults().align(SWT.FILL, SWT.CENTER)
.grab(true, false).applyTo(errorMessageLabel);
dbc.bindValue(connnectionNameObservable,
BeanProperties
.value(DockerComposeUpModel.class,
DockerComposeUpModel.CONNECTION_NAME)
.observe(model));
// must be called after bindings were set
setupValidationSupport(errorMessageIcon, errorMessageLabel);
return container;
}
private void setupValidationSupport(final Label errorMessageIcon,
final Label errorMessageLabel) {
for (@SuppressWarnings("unchecked")
Iterator<Binding> iterator = dbc.getBindings().iterator(); iterator
.hasNext();) {
final Binding binding = iterator.next();
binding.getModel().addChangeListener(onSettingsChanged(
errorMessageIcon, errorMessageLabel));
}
}
private IChangeListener onSettingsChanged(final Label errorMessageIcon,
final Label errorMessageLabel) {
return event -> {
final IStatus status = validateInput();
if (Display.getCurrent() == null) {
return;
}
Display.getCurrent().syncExec(() -> {
if (status.isOK()) {
errorMessageIcon.setVisible(false);
errorMessageLabel.setVisible(false);
setOkButtonEnabled(true);
} else if (status.matches(IStatus.WARNING)) {
errorMessageIcon.setVisible(true);
errorMessageIcon.setImage(
SWTImagesFactory.DESC_WARNING.createImage());
errorMessageLabel.setVisible(true);
errorMessageLabel.setText(status.getMessage());
setOkButtonEnabled(true);
} else if (status.matches(IStatus.ERROR)) {
if (status.getMessage() != null
&& !status.getMessage().isEmpty()) {
errorMessageIcon.setVisible(true);
errorMessageIcon.setImage(
SWTImagesFactory.DESC_ERROR.createImage());
errorMessageLabel.setVisible(true);
errorMessageLabel.setText(status.getMessage());
}
setOkButtonEnabled(false);
}
});
};
}
/**
* Validates that the selected {@link IDockerConnection} exists.
*
* @return a validation status
*/
private IStatus validateInput() {
final String selectedConnectionName = model.getConnectionName();
if (selectedConnectionName == null
|| selectedConnectionName.isEmpty()) {
return Status.CANCEL_STATUS;
} else if (!model.getConnectionNames()
.contains(selectedConnectionName)) {
return ValidationStatus.error(WizardMessages.getFormattedString(
"DockerComposeUpDialog.error.unknownConnection", //$NON-NLS-1$
selectedConnectionName));
}
return Status.OK_STATUS;
}
/**
* @return the selected {@link IDockerConnection}
*/
public IDockerConnection getSelectedConnection() {
return DockerConnectionManager.getInstance()
.findConnection(model.connectionName);
}
/**
* Creates an {@link IContentProposalProvider} to propose
* {@link IDockerContainer} names based on the current text.
*
* @param items
* @return
*/
private IContentProposalProvider getConnectionNameContentProposalProvider(
final Combo connectionNamesSelectionCombo) {
return (contents, position) -> {
final List<IContentProposal> proposals = new ArrayList<>();
for (String connectionName : connectionNamesSelectionCombo
.getItems()) {
if (connectionName.contains(contents)) {
proposals.add(new ContentProposal(connectionName,
connectionName, connectionName, position));
}
}
return proposals.toArray(new IContentProposal[0]);
};
}
private void setOkButtonEnabled(final boolean enabled) {
getButton(IDialogConstants.OK_ID).setEnabled(enabled);
}
class DockerComposeUpModel extends BaseDatabindingModel {
public static final String CONNECTION_NAME = "connectionName"; //$NON-NLS-1$
private String connectionName;
private final List<String> connectionNames = DockerConnectionManager
.getInstance().getConnectionNames();
public List<String> getConnectionNames() {
return connectionNames;
}
public String getConnectionName() {
return connectionName;
}
public void setConnectionName(final String connectionName) {
firePropertyChange(CONNECTION_NAME, this.connectionName,
this.connectionName = connectionName);
}
}
}