com.google.gwt.uibinder.rebind.FieldWriterOfLazyDomElement Maven / Gradle / Ivy
/*
* Copyright 2011 Google 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 com.google.gwt.uibinder.rebind;
import com.google.gwt.core.ext.UnableToCompleteException;
import com.google.gwt.core.ext.typeinfo.JClassType;
import com.google.gwt.core.ext.typeinfo.JParameterizedType;
import com.google.gwt.uibinder.rebind.model.OwnerField;
/**
* Implementation of FieldWriter for a {@link com.google.gwt.uibinder.client.LazyDomElement}.
*/
public class FieldWriterOfLazyDomElement extends AbstractFieldWriter {
/**
* The field type for @UiField LazyDomElement<T>.
*/
private final JParameterizedType ownerFieldType;
/**
* The T parameter in LazyDomElement<T>.
*/
private final JClassType parameterType;
public FieldWriterOfLazyDomElement(FieldManager manager, JClassType templateFieldType,
OwnerField ownerField, MortalLogger logger) throws UnableToCompleteException {
super(manager, FieldWriterType.DEFAULT, ownerField.getName(), logger);
// ownerFieldType null means LazyDomElement is not parameterized.
this.ownerFieldType = ownerField.getRawType().isParameterized();
if (ownerFieldType == null) {
logger.die("LazyDomElement must be of type LazyDomElement.");
}
// Parameterized LazyDomElement must match its respective html element.
// Example:
// DivElement -> div
// SpanElement -> span
parameterType = ownerFieldType.getTypeArgs()[0];
if (!templateFieldType.isAssignableTo(parameterType)) {
logger.die("Field %s is %s<%s>, must be %s<%s>.", ownerField.getName(),
ownerFieldType.getQualifiedSourceName(), parameterType,
ownerFieldType.getQualifiedSourceName(), templateFieldType);
}
}
public JClassType getAssignableType() {
return ownerFieldType;
}
public JClassType getInstantiableType() {
return ownerFieldType;
}
public String getQualifiedSourceName() {
return ownerFieldType.getQualifiedSourceName()
+ "<" + parameterType.getQualifiedSourceName() + ">";
}
}