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 static com.helger.jcodemodel.JExpr.lit;
  
  import java.util.List;
  
  import javax.lang.model.element.Element;
  import javax.lang.model.element.ExecutableElement;
  import javax.lang.model.element.VariableElement;
  import javax.lang.model.type.TypeKind;
  import javax.lang.model.type.TypeMirror;
  
  import org.androidannotations.AndroidAnnotationsEnvironment;
  import org.androidannotations.ElementValidation;
  import org.androidannotations.annotations.ItemSelect;
  import org.androidannotations.holder.EComponentWithViewSupportHolder;
  
  import com.helger.jcodemodel.AbstractJClass;
  import com.helger.jcodemodel.IJExpression;
  import com.helger.jcodemodel.JBlock;
  import com.helger.jcodemodel.JDefinedClass;
  import com.helger.jcodemodel.JExpr;
  import com.helger.jcodemodel.JInvocation;
  import com.helger.jcodemodel.JMethod;
  import com.helger.jcodemodel.JMod;
  import com.helger.jcodemodel.JVar;
  
  public class ItemSelectHandler extends AbstractViewListenerHandler {
  
  	private JMethod onNothingSelectedMethod;
  
  	public ItemSelectHandler(AndroidAnnotationsEnvironment environment) {
  		super(ItemSelect.class, environment);
  	}
  
  	@Override
  	public void validate(Element element, ElementValidation validation) {
  		super.validate(element, validation);
  
  		ExecutableElement executableElement = (ExecutableElement) element;
  
  		validatorHelper.returnTypeIsVoid(executableElement, validation);
  
  		validatorHelper.param.inOrder() //
  				.primitiveOrWrapper(TypeKind.BOOLEAN) //
  				.anyType().optional() //
  				.validate(executableElement, validation);
  	}
  
  	@Override
  	protected void makeCall(JBlock listenerMethodBody, JInvocation call, TypeMirror returnType) {
  		listenerMethodBody.add(call);
  	}
  
  	@Override
  	protected void processParameters(EComponentWithViewSupportHolder holder, JMethod listenerMethod, JInvocation itemSelectedCall, List<? extends VariableElement> parameters) {
  		AbstractJClass narrowAdapterViewClass = getClasses().ADAPTER_VIEW.narrow(getCodeModel().wildcard());
  		JVar onItemClickParentParam = listenerMethod.param(narrowAdapterViewClass, "parent");
  		listenerMethod.param(getClasses().VIEW, "view");
  		JVar onItemClickPositionParam = listenerMethod.param(getCodeModel().INT, "position");
  		listenerMethod.param(getCodeModel().LONG, "id");
  
  		itemSelectedCall.arg(JExpr.TRUE);
  		boolean hasItemParameter = parameters.size() == 2;
  		boolean secondParameterIsInt = false;
  		String secondParameterQualifiedName = null;
  		if (hasItemParameter) {
  			VariableElement secondParameter = parameters.get(1);
  			TypeMirror secondParameterType = secondParameter.asType();
  			secondParameterQualifiedName = secondParameterType.toString();
  			secondParameterIsInt = secondParameterType.getKind() == TypeKind.INT;
  		}
  
  		if (hasItemParameter) {
  
  			if (secondParameterIsInt) {
  				itemSelectedCall.arg(onItemClickPositionParam);
  			} else {
  				itemSelectedCall.arg(JExpr.cast(getJClass(secondParameterQualifiedName), invoke(onItemClickParentParam, "getAdapter").invoke("getItem").arg(onItemClickPositionParam)));
  			}
  		}
  
  		onNothingSelectedMethod.param(narrowAdapterViewClass, "parent");
  		IJExpression activityRef = holder.getGeneratedClass().staticRef("this");
  
  		JInvocation nothingSelectedCall = invoke(activityRef, getMethodName());
  		onNothingSelectedMethod.body().add(nothingSelectedCall);
  		nothingSelectedCall.arg(JExpr.FALSE);
  		if (hasItemParameter) {
  			if (secondParameterIsInt) {
  				nothingSelectedCall.arg(lit(-1));
  			} else {
  				nothingSelectedCall.arg(_null());
  			}
  		}
  	}
  
  	@Override
  	protected JMethod createListenerMethod(JDefinedClass listenerAnonymousClass) {
  		onNothingSelectedMethod = listenerAnonymousClass.method(JMod.PUBLIC, getCodeModel().VOID, "onNothingSelected");
  		onNothingSelectedMethod.annotate(Override.class);
  		return listenerAnonymousClass.method(JMod.PUBLIC, getCodeModel().VOID, "onItemSelected");
  	}
  
  	@Override
  	protected String getSetterName() {
  		return "setOnItemSelectedListener";
  	}
  
  	@Override
  	protected AbstractJClass getListenerClass(EComponentWithViewSupportHolder holder) {
  		return getClasses().ON_ITEM_SELECTED_LISTENER;
  	}
  
  	@Override
  	protected AbstractJClass getListenerTargetClass(EComponentWithViewSupportHolder holder) {
  		return getClasses().ADAPTER_VIEW.narrow(getCodeModel().wildcard());
  	}
  
  }
  