/**
* Implements the method to handle requests as defined by the <code>ClickHandler</code> interface.
* The request is only handled here if the ALT key was pressed.
*
* @see ClickHandler
*/
public void handleClick(Click click) {
System.out.println("Frame is asked to handle the request...");
if (click.hasAltMask()) {
System.out.println("Frame handles the request.");
} else {
if (successor == null) {
throw new RuntimeException("request unhandled (end of chain reached)");
} else {
successor.handleClick(click);
}
}
}
