/*******************************************************************************
* 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 org.eclipse.core.databinding.DataBindingContext;
import org.eclipse.core.databinding.beans.BeanProperties;
import org.eclipse.core.databinding.observable.value.IValueChangeListener;
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.layout.GridDataFactory;
import org.eclipse.jface.layout.GridLayoutFactory;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Point;
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.Shell;
import org.eclipse.swt.widgets.Text;
/**
* @author jjohnstn
*
*/
public class ContainerLabelVariableDialog extends Dialog {
private final LabelVariableModel model;
private final DataBindingContext dbc = new DataBindingContext();
public ContainerLabelVariableDialog(final Shell parentShell) {
super(parentShell);
this.model = new LabelVariableModel();
}
public ContainerLabelVariableDialog(final Shell parentShell,
final LabelVariableModel selectedVariable) {
super(parentShell);
this.model = new LabelVariableModel(selectedVariable);
}
@Override
protected void configureShell(final Shell shell) {
super.configureShell(shell);
setShellStyle(getShellStyle() | SWT.RESIZE);
shell.setText(WizardMessages
.getString("ContainerLabelVariableDialog.title")); //$NON-NLS-1$
}
@Override
protected Point getInitialSize() {
return new Point(400, super.getInitialSize().y);
}
/**
* Disable the 'OK' button by default
*/
@Override
protected Button createButton(Composite parent, int id, String label,
boolean defaultButton) {
final Button button = super.createButton(parent, id, label,
defaultButton);
if (id == IDialogConstants.OK_ID) {
button.setEnabled(false);
}
return button;
}
@Override
protected Control createDialogArea(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, true).applyTo(container);
GridLayoutFactory.fillDefaults().numColumns(COLUMNS).margins(10, 10)
.applyTo(container);
final Label explanationLabel = new Label(container, SWT.NONE);
explanationLabel.setText(WizardMessages.getString(
"ContainerLabelVariableDialog.explanationLabel")); //$NON-NLS-1$
GridDataFactory.fillDefaults().align(SWT.FILL, SWT.CENTER)
.span(COLUMNS, 1).grab(false, false).applyTo(explanationLabel);
final Label variableNameLabel = new Label(container, SWT.NONE);
variableNameLabel.setText(WizardMessages
.getString("ContainerLabelVariableDialog.nameLabel")); //$NON-NLS-1$
GridDataFactory.fillDefaults().align(SWT.FILL, SWT.CENTER)
.grab(false, false).applyTo(variableNameLabel);
final Text variableNameText = new Text(container, SWT.BORDER);
GridDataFactory.fillDefaults().align(SWT.FILL, SWT.CENTER)
.grab(true, false).applyTo(variableNameText);
final Label variableValueLabel = new Label(container, SWT.NONE);
variableValueLabel.setText(WizardMessages
.getString("ContainerLabelVariableDialog.valueLabel")); //$NON-NLS-1$
GridDataFactory.fillDefaults().align(SWT.FILL, SWT.CENTER)
.grab(false, false).applyTo(variableValueLabel);
final Text variableValueText = new Text(container, SWT.BORDER);
GridDataFactory.fillDefaults().align(SWT.FILL, SWT.CENTER)
.grab(true, false).applyTo(variableValueText);
// error message
final Label errorMessageLabel = new Label(container, SWT.NONE);
GridDataFactory.fillDefaults().align(SWT.FILL, SWT.CENTER)
.span(COLUMNS, 1).grab(true, false).applyTo(errorMessageLabel);
// listening to changes
final ISWTObservableValue variableNameObservable = WidgetProperties
.text(SWT.Modify).observe(variableNameText);
dbc.bindValue(variableNameObservable,
BeanProperties.value(LabelVariableModel.class,
LabelVariableModel.NAME).observe(model));
final ISWTObservableValue variableValueObservable = WidgetProperties
.text(SWT.Modify).observe(variableValueText);
dbc.bindValue(variableValueObservable,
BeanProperties.value(LabelVariableModel.class,
LabelVariableModel.VALUE).observe(model));
variableNameObservable
.addValueChangeListener(onLabelVariableSettingsChanged());
variableValueObservable
.addValueChangeListener(onLabelVariableSettingsChanged());
return container;
}
private IValueChangeListener onLabelVariableSettingsChanged() {
return event -> validateInput();
}
private void validateInput() {
final String variableName = model.getName();
if (variableName == null || variableName.isEmpty()) {
} else {
setOkButtonEnabled(true);
}
}
private void setOkButtonEnabled(final boolean enabled) {
getButton(IDialogConstants.OK_ID).setEnabled(enabled);
}
public LabelVariableModel getLabelVariable() {
return new LabelVariableModel(model.getName(), model.getValue());
}
}