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/*******************************************************************************
* Copyright (c) 2011, 2012 Wind River Systems, 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:
* Wind River Systems - initial API and implementation
*******************************************************************************/
package org.eclipse.tcf.te.ui.dialogs;
import java.util.Arrays;
import java.util.Set;
import org.eclipse.core.runtime.Assert;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.IMessageProvider;
import org.eclipse.osgi.util.NLS;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
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;
import org.eclipse.tcf.te.ui.help.IContextHelpIds;
import org.eclipse.tcf.te.ui.jface.dialogs.CustomTitleAreaDialog;
import org.eclipse.tcf.te.ui.nls.Messages;
import org.eclipse.tcf.te.ui.swt.SWTControlUtil;
/**
* Dialog implementation allowing to enter the data for name/value pairs.
*/
public class NameValuePairDialog extends CustomTitleAreaDialog {
private String name;
private String value;
private String dialogTitle;
private String title;
private String message;
private String[] fieldLabels;
private String[] initialValues;
private Set<String> usedNames;
private Text nameText;
private Text valueText;
/**
* Constructor.
*
* @param shell The parent shell or <code>null</code>.
* @param dialogTitle The dialog title. Must not be <code>null</code>.
* @param title The title. Must not be <code>null</code>.
* @param message The dialogs default message. Must not be <code>null</code>.
* @param fieldLabels The field labels. Must not be <code>null</code>.
* @param initialValues The field initial values. Must not be <code>null</code>.
* @param usedNames The list of used names. Must not be <code>null</code>.
*/
public NameValuePairDialog(Shell shell, String dialogTitle, String title, String message, String[] fieldLabels, String[] initialValues, Set<String> usedNames) {
super(shell, IContextHelpIds.NAME_VALUE_PAIR_DIALOG);
Assert.isNotNull(dialogTitle);
Assert.isNotNull(title);
Assert.isNotNull(message);
Assert.isNotNull(fieldLabels);
Assert.isNotNull(initialValues);
Assert.isNotNull(usedNames);
this.dialogTitle = dialogTitle;
this.title = title;
this.message = message;
this.fieldLabels = fieldLabels != null ? Arrays.copyOf(fieldLabels, fieldLabels.length) : null;
this.initialValues = initialValues != null ? Arrays.copyOf(initialValues, initialValues.length) : null;
this.usedNames = usedNames;
}
/* (non-Javadoc)
* @see org.eclipse.tcf.te.ui.jface.dialogs.CustomTitleAreaDialog#createDialogArea(org.eclipse.swt.widgets.Composite)
*/
@Override
protected Control createDialogArea(Composite parent) {
Composite top = (Composite)super.createDialogArea(parent);
setDialogTitle(dialogTitle);
setTitle(title);
setDefaultMessage(message, IMessageProvider.NONE);
Composite panel = new Composite(top, SWT.NONE);
panel.setLayout(new GridLayout(2, false));
panel.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));
Label label = new Label(panel, SWT.NONE);
label.setText(fieldLabels[0]);
nameText = new Text(panel, SWT.BORDER | SWT.SINGLE);
nameText.setText(initialValues[0]);
GridData layoutData = new GridData(SWT.FILL, SWT.CENTER, true, false);
layoutData.widthHint = 300;
nameText.setLayoutData(layoutData);
nameText.addModifyListener(new ModifyListener() {
@Override
public void modifyText(ModifyEvent e) {
updateButtons();
}
});
label = new Label(panel, SWT.NONE);
label.setText(fieldLabels[1]);
valueText = new Text(panel, SWT.BORDER | SWT.SINGLE);
valueText.setText(initialValues[1]);
layoutData = new GridData(GridData.FILL_HORIZONTAL);
layoutData.widthHint = 300;
valueText.setLayoutData(layoutData);
valueText.addModifyListener(new ModifyListener() {
@Override
public void modifyText(ModifyEvent e) {
updateButtons();
}
});
applyDialogFont(panel);
return panel;
}
/**
* Return the name/value pair entered in this dialog.
* <p>
* If the cancel button was hit, both will be <code>null</code>.
*/
public String[] getNameValuePair() {
return new String[] { name, value };
}
/* (non-Javadoc)
* @see org.eclipse.tcf.te.ui.jface.dialogs.CustomTitleAreaDialog#create()
*/
@Override
public void create() {
super.create();
updateButtons();
}
/* (non-Javadoc)
* @see org.eclipse.jface.dialogs.Dialog#buttonPressed(int)
*/
@Override
protected void buttonPressed(int buttonId) {
if (buttonId == IDialogConstants.OK_ID) {
name= SWTControlUtil.getText(nameText).trim();
value = SWTControlUtil.getText(valueText).trim();
} else {
name = null;
value = null;
}
super.buttonPressed(buttonId);
}
/**
* Enable the OK button if valid input
*/
protected void updateButtons() {
String name = SWTControlUtil.getText(nameText).trim();
String value = SWTControlUtil.getText(valueText).trim();
if (name.trim().length() == 0) {
setMessage(getErrorMissingName(), IMessageProvider.INFORMATION);
}
else if (usedNames.contains(name.trim())) {
setMessage(NLS.bind(getErrorUsedOrIllegalName(), name), IMessageProvider.ERROR);
}
else if (value.trim().length() == 0) {
setMessage(NLS.bind(getErrorMissingValue(), name), IMessageProvider.INFORMATION);
}
else {
setMessage(message, IMessageProvider.NONE);
}
getButton(IDialogConstants.OK_ID).setEnabled(getMessageType() == IMessageProvider.NONE);
}
/**
* Returns the text to show as missing name error.
*/
protected String getErrorMissingName() {
return Messages.NameValuePairDialog_missingName_error;
}
/**
* Returns the text to show as used or illegal name error.
*/
protected String getErrorUsedOrIllegalName() {
return Messages.NameValuePairDialog_usedOrIllegalName_error;
}
/**
* Returns the text to show as missing value error.
*/
protected String getErrorMissingValue() {
return Messages.NameValuePairDialog_missingValue_error;
}
}
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