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Copy pathTextChangeProcessor.java
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139 lines (114 loc) · 4.99 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 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.TextChange;
import com.googlecode.androidannotations.helper.APTCodeModelHelper;
import com.googlecode.androidannotations.helper.TextWatcherHelper;
import com.googlecode.androidannotations.rclass.IRClass;
import com.sun.codemodel.JBlock;
import com.sun.codemodel.JCodeModel;
import com.sun.codemodel.JFieldRef;
import com.sun.codemodel.JInvocation;
import com.sun.codemodel.JMethod;
import com.sun.codemodel.JVar;
/**
* @author Mathieu Boniface
*/
public class TextChangeProcessor implements ElementProcessor {
private final TextWatcherHelper helper;
private final APTCodeModelHelper codeModelHelper;
public TextChangeProcessor(ProcessingEnvironment processingEnv, IRClass rClass) {
codeModelHelper = new APTCodeModelHelper();
helper = new TextWatcherHelper(processingEnv, getTarget(), rClass, codeModelHelper);
}
@Override
public Class<? extends Annotation> getTarget() {
return TextChange.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();
int startParameterPosition = -1;
int countParameterPosition = -1;
int beforeParameterPosition = -1;
int charSequenceParameterPosition = -1;
int viewParameterPosition = -1;
TypeMirror viewParameterType = null;
for (int i = 0 ; i < parameters.size() ; i++) {
VariableElement parameter = parameters.get(i);
String parameterName = parameter.toString();
TypeMirror parameterType = parameter.asType();
if ("java.lang.CharSequence".equals(parameterType.toString())) {
charSequenceParameterPosition = i;
} else if (parameterType.getKind() == TypeKind.INT
|| "java.lang.integer".equals(parameterType.toString())) {
if ("start".equals(parameterName)) {
startParameterPosition = i;
} else if ("count".equals(parameterName)) {
countParameterPosition = i;
} else if ("before".equals(parameterName)) {
beforeParameterPosition = i;
}
} else {
TypeMirror textViewType = helper.typeElementFromQualifiedName("android.widget.TextView").asType();
if (helper.isSubtype(parameterType, textViewType)) {
viewParameterPosition = i;
viewParameterType = parameterType;
}
}
}
TextChange annotation = element.getAnnotation(TextChange.class);
List<JFieldRef> idsRefs = helper.extractFieldRefsFromAnnotationValues(element, annotation.value(), "TextChanged", holder);
for (JFieldRef idRef : idsRefs) {
TextWatcherHolder textWatcherHolder = helper.getOrCreateListener(codeModel, holder, idRef, viewParameterType);
JInvocation textChangeCall;
JMethod methodToCall = textWatcherHolder.onTextChangedMethod;
JBlock previousBody = codeModelHelper.removeBody(methodToCall);
JBlock methodBody = methodToCall.body();
methodBody.add(previousBody);
textChangeCall = methodBody.invoke(methodName);
for (int i = 0 ; i < parameters.size() ; i++) {
if (i == startParameterPosition) {
JVar startParameter = codeModelHelper.findParameterByName(methodToCall, "start");
textChangeCall.arg(startParameter);
} else if (i == countParameterPosition) {
JVar countParameter = codeModelHelper.findParameterByName(methodToCall, "count");
textChangeCall.arg(countParameter);
} else if (i == beforeParameterPosition) {
JVar beforeParameter = codeModelHelper.findParameterByName(methodToCall, "before");
textChangeCall.arg(beforeParameter);
} else if (i == charSequenceParameterPosition) {
JVar charSequenceParam = codeModelHelper.findParameterByName(methodToCall, "s");
textChangeCall.arg(charSequenceParam);
} else if (i == viewParameterPosition) {
JVar viewParameter = textWatcherHolder.viewVariable;
textChangeCall.arg(viewParameter);
}
}
}
}
}