/*
* Copyright 2016 Red Hat, Inc. and/or its affiliates.
*
* 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.uberfire.ext.security.management.client.widgets.management.editor.user;
import java.util.LinkedHashSet;
import java.util.Set;
import javax.annotation.PostConstruct;
import javax.inject.Inject;
import javax.validation.ConstraintViolation;
import com.google.gwt.user.client.ui.IsWidget;
import com.google.gwt.user.client.ui.Widget;
import org.jboss.errai.security.shared.api.identity.User;
import org.uberfire.ext.security.management.client.ClientUserSystemManager;
import org.uberfire.ext.security.management.client.resources.i18n.UsersManagementWidgetsConstants;
import org.uberfire.ext.security.management.client.widgets.management.editor.AssignedEntitiesExplorer;
import org.uberfire.ext.security.management.client.widgets.management.list.EntitiesList;
import org.uberfire.ext.security.management.client.widgets.management.list.EntitiesPagedList;
import org.uberfire.ext.security.management.client.widgets.popup.ConfirmBox;
/**
* <p>Base presenter class for user's assigned entities explorer widget.</p>
* <p>It's considered an Editor due to it allows removing assigned user's entities.</p>
* @since 0.8.0
*/
public abstract class UserAssignedEntitiesExplorer<T> implements IsWidget {
protected final static int PAGE_SIZE = 5;
public AssignedEntitiesExplorer view;
protected Set<T> entities = new LinkedHashSet<T>();
protected boolean isEditMode;
ClientUserSystemManager userSystemManager;
ConfirmBox confirmBox;
EntitiesPagedList<T> entitiesList;
@Inject
public UserAssignedEntitiesExplorer(final ClientUserSystemManager userSystemManager,
final ConfirmBox confirmBox,
final EntitiesPagedList<T> entitiesList,
final AssignedEntitiesExplorer view) {
this.userSystemManager = userSystemManager;
this.confirmBox = confirmBox;
this.entitiesList = entitiesList;
this.view = view;
}
@Override
public Widget asWidget() {
return view.asWidget();
}
protected abstract String getEmptyText();
protected abstract String getEntityType();
protected abstract String getTitle();
protected abstract String getEntityId(final T entity);
protected abstract String getEntityName(final T entity);
protected abstract String getEnsureRemoveText();
protected abstract boolean canAssignEntities();
protected abstract void doShow();
protected abstract void removeEntity(String name);
/* ******************************************************************************************************
PUBLIC PRESENTER API
****************************************************************************************************** */
@PostConstruct
public void init() {
entitiesList.setPageSize(PAGE_SIZE);
entitiesList.setEmptyEntitiesText(getEmptyText());
view.configure(getTitle(),
entitiesList.view);
}
public void show(final User user) {
clear();
this.isEditMode = false;
open(user);
}
public void edit(final User user) {
clear();
this.isEditMode = true;
open(user);
}
public void flush() {
assert isEditMode;
// No additional flush logic to perform here.
}
public Set<T> getValue() {
return entities;
}
public void setViolations(Set<ConstraintViolation<User>> constraintViolations) {
// Currently no violations expected.
}
public void clear() {
view.clear();
entitiesList.clear();
isEditMode = false;
entities.clear();
}
/* ******************************************************************************************************
OTHER METHODS AND VALIDATORS
****************************************************************************************************** */
protected EntitiesList.Callback<T> getCallback() {
return new EntitiesList.Callback<T>() {
@Override
public String getEntityType() {
return UserAssignedEntitiesExplorer.this.getEntityType();
}
@Override
public boolean canRead() {
return true;
}
@Override
public boolean canRemove() {
return canAssignEntities();
}
@Override
public boolean canSelect() {
return false;
}
@Override
public boolean isSelected(final String identifier) {
return false;
}
@Override
public String getIdentifier(final T entity) {
return UserAssignedEntitiesExplorer.this.getEntityId(entity);
}
@Override
public String getTitle(final T entity) {
return UserAssignedEntitiesExplorer.this.getEntityName(entity);
}
@Override
public void onReadEntity(final String identifier) {
// Not allowed.
}
@Override
public void onRemoveEntity(final String identifier) {
if (identifier != null) {
confirmBox.show(UsersManagementWidgetsConstants.INSTANCE.confirmAction(),
UserAssignedEntitiesExplorer.this.getEnsureRemoveText(),
() -> removeEntity(identifier),
() -> {
});
}
}
@Override
public void onSelectEntity(final String identifier,
final boolean isSelected) {
// Entity selection not available for the explorer widget.
}
@Override
public void onChangePage(final int currentPage,
final int goToPage) {
// Do nothing by default, let the entitiesList paginate.
}
};
}
protected void open(final User user) {
assert user != null;
doShow();
}
}