com.google.gwt.uibinder.elementparsers.HasWidgetsParser Maven / Gradle / Ivy
/*
* Copyright 2007 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.elementparsers;
import com.google.gwt.core.ext.UnableToCompleteException;
import com.google.gwt.core.ext.typeinfo.JClassType;
import com.google.gwt.uibinder.rebind.FieldWriter;
import com.google.gwt.uibinder.rebind.UiBinderWriter;
import com.google.gwt.uibinder.rebind.XMLElement;
/**
* Parses any widgets that implement
* {@link com.google.gwt.user.client.ui.HasWidgets}.
*
* This handles all panels that support a single-argument add() method.
*/
public class HasWidgetsParser implements ElementParser {
public void parse(XMLElement elem, String fieldName, JClassType type,
UiBinderWriter writer) throws UnableToCompleteException {
// Parse children.
for (XMLElement child : elem.consumeChildElements()) {
if (!writer.isWidgetElement(child)) {
writer.die(child, "Expecting only widgets in %s", elem);
}
FieldWriter childField = writer.parseElementToField(child);
writer.addStatement("%1$s.add(%2$s);", fieldName,
childField.getNextReference());
}
}
}