/**
* Substitutes all hangman variables into the gadget spec.
*
* @return A new GadgetSpec, with all fields substituted as needed.
*/
public GadgetSpec substitute(GadgetContext context, GadgetSpec spec)
{
MessageBundle bundle =
messageBundleFactory.getBundle(spec, context.getLocale(), context.getIgnoreCache());
String dir = bundle.getLanguageDirection();
Substitutions substituter = new Substitutions();
substituter.addSubstitutions(Substitutions.Type.MESSAGE, bundle.getMessages());
BidiSubstituter.addSubstitutions(substituter, dir);
substituter.addSubstitution(Substitutions.Type.MODULE, "ID",
context.getModuleId());
UserPrefSubstituter.addSubstitutions(substituter, spec, context.getUserPrefs());
return(spec.substitute(substituter));
}