priorityTextBox.setWidth( "30px" );
priorityTextBox.setText( constraint.getPriority() + "" );
priorityTextBox.addFocusHandler( new FocusHandler() {
public void onFocus(FocusEvent event) {
priorityTextBox.selectAll();
}
} );
priorityTextBox.addBlurHandler( new BlurHandler() {
public void onBlur(BlurEvent event) {
final Constraint constraint = constraints.get( connectionRef );