public static CompareHandlerService createFor(ICompareContainer container, Shell shell) {
IServiceLocator serviceLocator = container.getServiceLocator();
if (serviceLocator != null) {
IHandlerService service = (IHandlerService) serviceLocator.getService(IHandlerService.class);
if (service != null) return new CompareHandlerService(container, null);
}
if (container.getWorkbenchPart() == null && shell != null) {
// We're in a dialog so we can use an active shell expression
IHandlerService service =
(IHandlerService) PlatformUI.getWorkbench().getService(IHandlerService.class);
if (service != null) {
Expression e = new ActiveShellExpression(shell);
return new CompareHandlerService(container, e);
}
}
return new CompareHandlerService(null, null);
}
private void initialize() {
if (fHandlerService == null) {
IServiceLocator serviceLocator = fContainer.getServiceLocator();
if (serviceLocator != null) {
IHandlerService service =
(IHandlerService) serviceLocator.getService(IHandlerService.class);
if (service != null) fHandlerService = service;
}
if (fHandlerService == null && fContainer.getWorkbenchPart() == null && fExpression != null) {
// We're in a dialog so we can use an active shell expression
IHandlerService service =
(IHandlerService) PlatformUI.getWorkbench().getService(IHandlerService.class);
if (service != null) {
fHandlerService = service;
}
}
}
}