This method is called when the window hosting a <code>Browser</code> is requested to be hidden. Application would typically hide the {@link org.eclipse.swt.widgets.Shell} that hosts the <code>Browser</code>. <p>
This method is called when the window hosting a <code>Browser</code> is requested to be displayed. Application would typically set the location and the size of the {@link org.eclipse.swt.widgets.Shell} that hosts the <code>Browser</code>, if a particular location and size are specified. The application would then open that <code>Shell</code>. <p>
This listener interface may be implemented in order to receive a {@link WindowEvent} notification when a window hosting a {@link Browser} needs to be displayed or hidden.
@see Browser#addVisibilityWindowListener(VisibilityWindowListener) @see Browser#removeVisibilityWindowListener(VisibilityWindowListener) @see OpenWindowListener @see CloseWindowListener
@since 3.0