Showing notification or popup dialog in Eclispe

Will use PopupDialog Class from eclipse Jface framework.

I am taking about something like this.

Example:

import org.eclipse.jface.dialogs.PopupDialog;

import org.eclipse.swt.SWT;

import org.eclipse.swt.events.SelectionEvent;

import org.eclipse.swt.events.SelectionListener;

import org.eclipse.swt.layout.GridLayout;

import org.eclipse.swt.widgets.Button;

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;

public class PopupDialogExample {

public static void main(String[] args) {

open();

}

static void open(){

final Display display = new Display();

final Shell shell = new Shell(display);

shell.setText("PopupDialog");

shell.setLayout(new GridLayout());

shell.setSize(400, 300);

Button button = new Button(shell,SWT.PUSH);

button.setText("Click here!");

button.addSelectionListener(new SelectionListener() {

public void widgetSelected(SelectionEvent e) {

int shellStyle = PopupDialog.INFOPOPUPRESIZE_SHELLSTYLE;

boolean takeFocusOnOpen = true;

boolean persistSize = true;

boolean persistLocation = true;

boolean showDialogMenu = true;

boolean showPersistActions = true;

String titleText = "Updates Available"; 

String infoText = "Eclipse updates are available!";

PopupDialog  dialog = new PopupDialog(shell, shellStyle, takeFocusOnOpen, persistSize, persistLocation, showDialogMenu, showPersistActions, titleText, infoText){

@Override

protected Control createDialogArea(Composite parent) {

Composite composite = (Composite) super.createDialogArea(parent);

Label text = new Label(composite,SWT.SINGLE);

text.setText("There is a update for your plugin, please install them before proceed!");

return composite;

}

};

dialog.open();

}

public void widgetDefaultSelected(SelectionEvent e) {

}

});

shell.layout();

shell.open();

while (!shell.isDisposed()) {

if (!display.readAndDispatch()) display.sleep();

}

}

}