/**
* JBoss, Home of Professional Open Source
* Copyright 2014, Red Hat, Inc. and/or its affiliates, and individual
* contributors by the @authors tag. See the copyright.txt in the
* distribution for a full listing of individual contributors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jboss.errai.security.client.local.style;
import java.lang.annotation.Annotation;
import java.util.Arrays;
import java.util.Set;
import javax.annotation.PostConstruct;
import javax.inject.Inject;
import javax.inject.Singleton;
import org.jboss.errai.security.client.local.spi.ActiveUserCache;
import org.jboss.errai.security.shared.api.Role;
import org.jboss.errai.security.shared.api.annotation.RestrictedAccess;
import org.jboss.errai.security.shared.api.identity.User;
import org.jboss.errai.security.shared.spi.RequiredRolesExtractor;
import org.jboss.errai.ui.shared.api.style.AnnotationStyleBindingExecutor;
import org.jboss.errai.ui.shared.api.style.StyleBindingsRegistry;
import com.google.gwt.user.client.Element;
/**
* RoleStyleBindingProvider makes sure that client elements annotated by {@link RestrictedAccess} are made invisible for
* users that do not have the role or roles specified.
*
* @see RestrictedAccess
* @author edewit@redhat.com
* @author Max Barkley <mbarkley@redhat.com>
*/
@Singleton
public class RoleStyleBindingProvider {
private final ActiveUserCache userCache;
private final RequiredRolesExtractor roleExtractor;
@Inject
public RoleStyleBindingProvider(final ActiveUserCache userProvider, final RequiredRolesExtractor roleExtractor) {
this.userCache = userProvider;
this.roleExtractor = roleExtractor;
}
@PostConstruct
public void init() {
StyleBindingsRegistry.get().addStyleBinding(this, RestrictedAccess.class, new AnnotationStyleBindingExecutor() {
@Override
public void invokeBinding(final Element element, final Annotation annotation) {
final User user = userCache.getUser();
final Set<Role> extractedRoles = roleExtractor.extractAllRoles((RestrictedAccess) annotation);
if (User.ANONYMOUS.equals(userCache.getUser()) || !user.getRoles().containsAll(extractedRoles)) {
element.addClassName(RestrictedAccess.CSS_CLASS_NAME);
}
else {
element.removeClassName(RestrictedAccess.CSS_CLASS_NAME);
}
}
});
}
}