/*
* Copyright 2011 JBoss, by Red Hat, Inc
*
* 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 org.jboss.errai.uibinder.rebind;
import com.google.gwt.core.client.GWT;
import com.google.gwt.safehtml.client.SafeHtmlTemplates;
import com.google.gwt.safehtml.shared.SafeUri;
import com.google.gwt.uibinder.client.UiBinder;
import com.google.gwt.uibinder.client.UiTemplate;
import org.jboss.errai.codegen.BlockStatement;
import org.jboss.errai.codegen.InnerClass;
import org.jboss.errai.codegen.Parameter;
import org.jboss.errai.codegen.Statement;
import org.jboss.errai.codegen.builder.impl.ClassBuilder;
import org.jboss.errai.codegen.builder.impl.ObjectBuilder;
import org.jboss.errai.codegen.literal.LiteralFactory;
import org.jboss.errai.codegen.meta.MetaClass;
import org.jboss.errai.codegen.meta.MetaClassFactory;
import org.jboss.errai.codegen.meta.impl.build.BuildMetaClass;
import org.jboss.errai.codegen.util.Refs;
import org.jboss.errai.codegen.util.Stmt;
import org.jboss.errai.ioc.client.api.IOCExtension;
import org.jboss.errai.ioc.client.api.PackageTarget;
import org.jboss.errai.ioc.rebind.ioc.bootstrapper.IOCProcessingContext;
import org.jboss.errai.ioc.rebind.ioc.bootstrapper.IOCProcessorFactory;
import org.jboss.errai.ioc.rebind.ioc.extension.IOCExtensionConfigurator;
import org.jboss.errai.ioc.rebind.ioc.injector.AbstractInjector;
import org.jboss.errai.ioc.rebind.ioc.injector.api.InjectableInstance;
import org.jboss.errai.ioc.rebind.ioc.injector.api.InjectionContext;
import org.jboss.errai.ioc.rebind.ioc.injector.api.InjectionPoint;
import org.jboss.errai.ioc.rebind.ioc.injector.api.TypeDiscoveryListener;
import org.jboss.errai.uibinder.client.UiBinderProvider;
import java.lang.annotation.Annotation;
/**
* @author Mike Brock
*/
@IOCExtension
public class GWTUiBinderIOCExtension implements IOCExtensionConfigurator {
@Override
public void configure(final IOCProcessingContext context, final InjectionContext injectionContext, final IOCProcessorFactory procFactory) {
context.registerTypeDiscoveryListener(new TypeDiscoveryListener() {
@Override
public void onDiscovery(final IOCProcessingContext context, final InjectionPoint injectionPoint) {
if (injectionPoint.getType().isAssignableFrom(UiBinder.class)) {
MetaClass uiBinderParameterized = MetaClassFactory.parameterizedAs(UiBinder.class,
MetaClassFactory
.typeParametersOf(injectionPoint.getType().getParameterizedType().getTypeParameters()[0],
injectionPoint.getEnclosingType()));
BuildMetaClass uiBinderBoilerPlaterIface = ClassBuilder.define(injectionPoint.getEnclosingType().getName()
+ "UiBinder", uiBinderParameterized)
.publicScope().staticClass().interfaceDefinition()
.body().getClassDefinition();
UiTemplate handler = new UiTemplate() {
@Override
public String value() {
return injectionPoint.getEnclosingType().getFullyQualifiedName() + ".ui.xml";
}
@Override
public Class<? extends Annotation> annotationType() {
return UiTemplate.class;
}
};
PackageTarget packageTarget = new PackageTarget() {
@Override
public String value() {
return injectionPoint.getEnclosingType().getPackageName();
}
@Override
public Class<? extends Annotation> annotationType() {
return PackageTarget.class;
}
};
uiBinderBoilerPlaterIface.addAnnotation(handler);
uiBinderBoilerPlaterIface.addAnnotation(packageTarget);
context.getBootstrapClass().addInnerClass(new InnerClass(uiBinderBoilerPlaterIface));
final BlockStatement staticInit = context.getBootstrapClass().getStaticInitializer();
String varName = "uiBinderInst_" + injectionPoint.getEnclosingType().getFullyQualifiedName()
.replaceAll("\\.", "_");
if (Boolean.getBoolean("errai.simulatedClient")) {
staticInit.addStatement(Stmt.declareVariable(UiBinder.class).named(varName).initializeWith(
ObjectBuilder.newInstanceOf(uiBinderBoilerPlaterIface)
.extend()
.publicOverridesMethod("createAndBindUi", Parameter.of(injectionPoint.getEnclosingType(), "w"))
.append(Stmt.loadLiteral(null).returnValue())
.finish().finish()
)
);
}
else {
staticInit.addStatement(Stmt.declareVariable(UiBinder.class).named(varName).initializeWith(
Stmt.invokeStatic(GWT.class, "create", LiteralFactory.getLiteral(uiBinderBoilerPlaterIface))
));
}
staticInit.addStatement(Stmt.invokeStatic(UiBinderProvider.class, "registerBinder",
injectionPoint.getEnclosingType(), Refs.get(varName)));
}
else if (injectionPoint.getType().isAssignableTo(SafeHtmlTemplates.class)) {
final String varName = "safeTemplateInst_" + injectionPoint.getEnclosingType().getFullyQualifiedName()
.replaceAll("\\.", "_");
if (Boolean.getBoolean("errai.simulatedClient")) {
context.append(Stmt.declareVariable(SafeHtmlTemplates.class).named(varName).initializeWith(
ObjectBuilder.newInstanceOf(injectionPoint.getType())
.extend()
.publicOverridesMethod("link", Parameter.of(SafeUri.class, "safe"),
Parameter.of(String.class, "str"))
.append(Stmt.loadLiteral(null).returnValue())
.finish().finish()
)
);
}
else {
context.append(Stmt.declareVariable(injectionPoint.getType()).named(varName).initializeWith(
Stmt.invokeStatic(GWT.class, "create", LiteralFactory.getLiteral(injectionPoint.getType()))
));
}
injectionContext.registerInjector(new AbstractInjector() {
@Override
public Statement getBeanInstance(InjectableInstance injectableInstance) {
return Refs.get(varName);
}
@Override
public boolean isRendered() {
return false;
}
@Override
public boolean isSingleton() {
return false;
}
@Override
public boolean isPseudo() {
return false;
}
@Override
public String getInstanceVarName() {
return varName;
}
@Override
public MetaClass getInjectedType() {
return injectionPoint.getType();
}
});
}
}
});
}
@Override
public void afterInitialization(IOCProcessingContext context, InjectionContext injectionContext, IOCProcessorFactory procFactory) {
}
}