content: /**
   * Copyright (C) 2010-2016 eBusiness Information, Excilys Group
   *
   * 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.androidannotations.internal.core.handler;
  
  import static com.helger.jcodemodel.JExpr._null;
  import static com.helger.jcodemodel.JExpr.invoke;
  
  import javax.lang.model.element.Element;
  import javax.lang.model.element.ExecutableElement;
  
  import org.androidannotations.AndroidAnnotationsEnvironment;
  import org.androidannotations.ElementValidation;
  import org.androidannotations.annotations.IgnoreWhen;
  import org.androidannotations.handler.BaseAnnotationHandler;
  import org.androidannotations.holder.EFragmentHolder;
  
  import com.helger.jcodemodel.JBlock;
  import com.helger.jcodemodel.JConditional;
  import com.helger.jcodemodel.JMethod;
  
  public class IgnoreWhenHandler extends BaseAnnotationHandler<EFragmentHolder> {
  
  	public IgnoreWhenHandler(AndroidAnnotationsEnvironment environment) {
  		super(IgnoreWhen.class, environment);
  	}
  
  	@Override
  	public void validate(Element element, ElementValidation valid) {
  		validatorHelper.isNotPrivate(element, valid);
  
  		validatorHelper.isNotFinal(element, valid);
  
  		validatorHelper.returnTypeIsVoid((ExecutableElement) element, valid);
  
  		validatorHelper.enclosingElementHasEFragment(element, valid);
  	}
  
  	@Override
  	public void process(Element element, EFragmentHolder holder) throws Exception {
  		ExecutableElement executableElement = (ExecutableElement) element;
  		JMethod delegatingMethod = codeModelHelper.overrideAnnotatedMethod(executableElement, holder);
  		JBlock previousMethodBody = codeModelHelper.removeBody(delegatingMethod);
  
  		IgnoreWhen ignoreWhen = element.getAnnotation(IgnoreWhen.class);
  		JBlock methodBody = delegatingMethod.body();
  		JConditional conditional = null;
  		switch (ignoreWhen.value()) {
  		case VIEW_DESTROYED:
  			conditional = methodBody._if(holder.getViewDestroyedField().not());
  			break;
  		case DETACHED:
  			conditional = methodBody._if(invoke(holder.getGeneratedClass().staticRef("this"), "getActivity").ne(_null()));
  			break;
  		}
  		conditional._then().add(previousMethodBody);
  	}
  }
  