001/**
002 * Copyright 2013 John Ericksen
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *    http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016package org.androidtransfuse.gen.componentBuilder;
017
018import com.google.common.collect.ImmutableList;
019import com.sun.codemodel.JBlock;
020import com.sun.codemodel.JExpression;
021import com.sun.codemodel.JInvocation;
022import org.androidtransfuse.adapter.ASTMethod;
023import org.androidtransfuse.adapter.ASTParameter;
024import org.androidtransfuse.adapter.ASTVoidType;
025import org.androidtransfuse.experiment.ComponentBuilder;
026import org.androidtransfuse.experiment.ComponentMethodGenerator;
027import org.androidtransfuse.experiment.GenerationPhase;
028import org.androidtransfuse.model.MethodDescriptor;
029import org.androidtransfuse.model.TypedExpression;
030
031import javax.inject.Inject;
032
033/**
034 * @author John Ericksen
035 */
036public class ActivityDelegateRegistrationGenerator implements RegistrationGenerator {
037
038    private final ImmutableList<ASTMethod> methods;
039    private final ActivityDelegateASTReference activityDelegateASTReference;
040
041    @Inject
042    public ActivityDelegateRegistrationGenerator(/*@Assisted*/ ActivityDelegateASTReference activityDelegateASTReference,
043                                                 /*@Assisted*/ ImmutableList<ASTMethod> methods) {
044        this.methods = methods;
045        this.activityDelegateASTReference = activityDelegateASTReference;
046    }
047
048    @Override
049    public void build(final ComponentBuilder componentBuilder, ASTMethod creationMethod, final TypedExpression value) {
050        for (ASTMethod method : methods) {
051
052            componentBuilder.add(method, GenerationPhase.REGISTRATION, new ComponentMethodGenerator() {
053                @Override
054                public void generate(MethodDescriptor methodDescriptor, JBlock block) {
055                    JExpression targetExpression = activityDelegateASTReference.buildReference(componentBuilder.getDefinedClass(), value);
056
057                    JInvocation delegateInvocation = targetExpression.invoke(methodDescriptor.getASTMethod().getName());
058
059                    for (ASTParameter astParameter : methodDescriptor.getASTMethod().getParameters()) {
060                        delegateInvocation.arg(methodDescriptor.getParameter(astParameter).getExpression());
061                    }
062
063                    if(ASTVoidType.VOID.equals(methodDescriptor.getASTMethod().getReturnType())){
064                        block.add(delegateInvocation);
065                    }
066                    else{
067                        block._return(delegateInvocation);
068                    }
069                }
070            });
071        }
072    }
073}