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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 java.lang.annotation.Annotation;
import java.util.List;
import javax.annotation.processing.ProcessingEnvironment;
import javax.lang.model.element.Element;
import javax.lang.model.element.ExecutableElement;
import javax.lang.model.element.VariableElement;
import com.googlecode.androidannotations.annotations.Click;
import com.googlecode.androidannotations.helper.IdAnnotationHelper;
import com.googlecode.androidannotations.rclass.IRClass;
import com.sun.codemodel.JBlock;
import com.sun.codemodel.JClass;
import com.sun.codemodel.JCodeModel;
import com.sun.codemodel.JDefinedClass;
import com.sun.codemodel.JExpr;
import com.sun.codemodel.JFieldRef;
import com.sun.codemodel.JInvocation;
import com.sun.codemodel.JMethod;
import com.sun.codemodel.JMod;
import com.sun.codemodel.JVar;
/**
* @author Mathieu Boniface
* @author Pierre-Yves
*/
public class ClickProcessor implements ElementProcessor {
private final IdAnnotationHelper helper;
public ClickProcessor(ProcessingEnvironment processingEnv, IRClass rClass) {
helper = new IdAnnotationHelper(processingEnv, getTarget(), rClass);
}
@Override
public Class<? extends Annotation> getTarget() {
return Click.class;
}
@Override
public void process(Element element, JCodeModel codeModel, EBeansHolder activitiesHolder) {
EBeanHolder holder = activitiesHolder.getEnclosingEBeanHolder(element);
String methodName = element.getSimpleName().toString();
ExecutableElement executableElement = (ExecutableElement) element;
List<? extends VariableElement> parameters = executableElement.getParameters();
boolean hasViewParameter = parameters.size() == 1;
Click annotation = element.getAnnotation(Click.class);
List<JFieldRef> idsRefs = helper.extractFieldRefsFromAnnotationValues(element, annotation.value(), "Clicked", holder);
JDefinedClass onClickListenerClass = codeModel.anonymousClass(holder.refClass("android.view.View.OnClickListener"));
JMethod onClickMethod = onClickListenerClass.method(JMod.PUBLIC, codeModel.VOID, "onClick");
JClass viewClass = holder.refClass("android.view.View");
JVar onClickViewParam = onClickMethod.param(viewClass, "view");
JInvocation clickCall = onClickMethod.body().invoke(methodName);
if (hasViewParameter) {
clickCall.arg(onClickViewParam);
}
for (JFieldRef idRef : idsRefs) {
JBlock block = holder.afterSetContentView.body().block();
JInvocation findViewById = JExpr.invoke("findViewById");
JVar view = block.decl(viewClass, "view", findViewById.arg(idRef));
block._if(view.ne(JExpr._null()))._then().invoke(view, "setOnClickListener").arg(JExpr._new(onClickListenerClass));
}
}
}