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Copyright (C) 2010-2011 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 com.googlecode.androidannotations.processing;
 
 import static com.sun.codemodel.JExpr._null;
 import static com.sun.codemodel.JExpr.lit;
 
 import java.util.List;
 
 

Author(s):
Pierre-Yves Ricau
Mathieu Boniface
 
 public class ItemSelectedProcessor extends MultipleResIdsBasedProcessor implements ElementProcessor {
 
 	public ItemSelectedProcessor(IRClass rClass) {
 		super(rClass);
 	}
 
 	public Class<? extends AnnotationgetTarget() {
 		return ItemSelect.class;
 	}
 
 	public void process(Element elementJCodeModel codeModelEBeansHolder activitiesHolder) {
 		EBeanHolder holder = activitiesHolder.getEnclosingEBeanHolder(element);
 
 		String methodName = element.getSimpleName().toString();
 
 		ExecutableElement executableElement = (ExecutableElementelement;
 		List<? extends VariableElementparameters = executableElement.getParameters();
 
 		boolean hasItemParameter = parameters.size() == 2;
 
 		ItemSelect annotation = element.getAnnotation(ItemSelect.class);
 		List<JFieldRefidsRefs = extractQualifiedIds(elementannotation.value(), "ItemSelected"holder);
 
 		JDefinedClass onItemSelectedListenerClass = codeModel.anonymousClass(holder.refClass("android.widget.AdapterView.OnItemSelectedListener"));
 		JMethod onItemSelectedMethod = onItemSelectedListenerClass.method(.codeModel.VOID"onItemSelected");
 		JClass adapterViewClass = holder.refClass("android.widget.AdapterView");
 		JClass viewClass = holder.refClass("android.view.View");
 
 		JClass narrowAdapterViewClass = adapterViewClass.narrow(codeModel.wildcard());
 		JVar onItemClickParentParam = onItemSelectedMethod.param(narrowAdapterViewClass"parent");
 		onItemSelectedMethod.param(viewClass"view");
 		JVar onItemClickPositionParam = onItemSelectedMethod.param(codeModel.INT"position");
 		onItemSelectedMethod.param(codeModel.LONG"id");
 
 		JInvocation itemSelectedCall = onItemSelectedMethod.body().invoke(methodName);
 
 		itemSelectedCall.arg(.);
 
 		VariableElement secondParameter = parameters.get(1);
 		TypeMirror parameterType = secondParameter.asType();
 
 		if (hasItemParameter) {
 
 			if (parameterType.getKind() == .) {
 				itemSelectedCall.arg(onItemClickPositionParam);
 			} else {
 				String parameterTypeQualifiedName = parameterType.toString();
 				itemSelectedCall.arg(JExpr.cast(holder.refClass(parameterTypeQualifiedName), JExpr.invoke(onItemClickParentParam"getAdapter").invoke("getItem").arg(onItemClickPositionParam)));
 			}
 		}
 
		JMethod onNothingSelectedMethod = onItemSelectedListenerClass.method(.codeModel.VOID"onNothingSelected");
		onNothingSelectedMethod.param(narrowAdapterViewClass"parent");
		JInvocation nothingSelectedCall = onNothingSelectedMethod.body().invoke(methodName);
		nothingSelectedCall.arg(.);
		if (hasItemParameter) {
			if (parameterType.getKind() == .) {
				nothingSelectedCall.arg(lit(-1));
else {
				nothingSelectedCall.arg(_null());
			}
		}
		for (JFieldRef idRef : idsRefs) {
			JBlock body = holder.afterSetContentView.body();
			JInvocation findViewById = JExpr.invoke("findViewById");
			body.add(JExpr.invoke(JExpr.cast(narrowAdapterViewClassfindViewById.arg(idRef)), "setOnItemSelectedListener").arg(JExpr._new(onItemSelectedListenerClass)));
		}
	}
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