/*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you 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.apache.myfaces.tobago.security;
  
  import org.apache.myfaces.tobago.component.UILink;
  
  import javax.el.MethodExpression;
  import javax.faces.context.FacesContext;
  
  public class UISecuredLink extends UILink {
  
    public static final String COMPONENT_TYPE = "org.apache.myfaces.tobago.SecuredLink";
  
    /**
     * No-arg constructor used during restoreState
     */
    public UISecuredLink() {
    }
  
    @Override
    public boolean isDisabled() {
      if (getActionExpression() instanceof CheckAuthorisationMethodExpression) {
        return !((CheckAuthorisationMethodExpression)
            getActionExpression()).isAuthorized(FacesContext.getCurrentInstance())
            || super.isDisabled();
      }
      return super.isDisabled();
    }
  
    @Override
    public void setActionExpression(MethodExpression actionExpression) {
      if (actionExpression != null) {
        super.setActionExpression(new CheckAuthorisationMethodExpression(actionExpression));
      } else {
        super.setActionExpression(actionExpression);
      }
    }
  }