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Copy pathOptionsItemProcessor.java
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125 lines (99 loc) · 4.25 KB
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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.FALSE;
import static com.sun.codemodel.JExpr.TRUE;
import static com.sun.codemodel.JExpr._super;
import static com.sun.codemodel.JExpr.invoke;
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 javax.lang.model.type.TypeKind;
import javax.lang.model.type.TypeMirror;
import com.googlecode.androidannotations.annotations.OptionsItem;
import com.googlecode.androidannotations.helper.IdAnnotationHelper;
import com.googlecode.androidannotations.helper.SherlockHelper;
import com.googlecode.androidannotations.rclass.IRClass;
import com.sun.codemodel.JBlock;
import com.sun.codemodel.JCase;
import com.sun.codemodel.JCodeModel;
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 Pierre-Yves Ricau
*/
public class OptionsItemProcessor implements ElementProcessor {
private final IdAnnotationHelper helper;
private final SherlockHelper sherlockHelper;
public OptionsItemProcessor(ProcessingEnvironment processingEnv, IRClass rClass) {
helper = new IdAnnotationHelper(processingEnv, getTarget(), rClass);
sherlockHelper = new SherlockHelper(helper);
}
@Override
public Class<? extends Annotation> getTarget() {
return OptionsItem.class;
}
@Override
public void process(Element element, JCodeModel codeModel, EBeansHolder activitiesHolder) {
EBeanHolder holder = activitiesHolder.getEnclosingEBeanHolder(element);
String methodName = element.getSimpleName().toString();
String menuItemClassName;
if (sherlockHelper.usesSherlock(holder)) {
menuItemClassName = "com.actionbarsherlock.view.MenuItem";
} else {
menuItemClassName = "android.view.MenuItem";
}
ExecutableElement executableElement = (ExecutableElement) element;
List<? extends VariableElement> parameters = executableElement.getParameters();
TypeMirror returnType = executableElement.getReturnType();
boolean returnMethodResult = returnType.getKind() != TypeKind.VOID;
boolean hasItemParameter = parameters.size() == 1;
OptionsItem annotation = element.getAnnotation(OptionsItem.class);
List<JFieldRef> idsRefs = helper.extractFieldRefsFromAnnotationValues(element, annotation.value(), "Selected", holder);
if (holder.onOptionsItemSelectedSwitch == null) {
JMethod method = holder.eBean.method(JMod.PUBLIC, codeModel.BOOLEAN, "onOptionsItemSelected");
method.annotate(Override.class);
holder.onOptionsItemSelectedItem = method.param(holder.refClass(menuItemClassName), "item");
JBlock body = method.body();
JVar handled = body.decl(codeModel.BOOLEAN, "handled", invoke(_super(), method).arg(holder.onOptionsItemSelectedItem));
body._if(handled)._then()._return(TRUE);
holder.onOptionsItemSelectedSwitch = body._switch(holder.onOptionsItemSelectedItem.invoke("getItemId"));
JBlock defaultBody = holder.onOptionsItemSelectedSwitch._default().body();
defaultBody._return(FALSE);
}
JCase itemCase = null;
for (JFieldRef idRef : idsRefs) {
itemCase = holder.onOptionsItemSelectedSwitch._case(idRef);
}
JBlock itemCaseBody = itemCase.body();
JInvocation methodCall = invoke(methodName);
if (returnMethodResult) {
itemCaseBody._return(methodCall);
} else {
itemCaseBody.add(methodCall);
itemCaseBody._return(TRUE);
}
if (hasItemParameter) {
methodCall.arg(holder.onOptionsItemSelectedItem);
}
}
}