com.google.gwt.uibinder.elementparsers.AbsolutePanelParser Maven / Gradle / Ivy
/*
* Copyright 2010 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.UiBinderWriter;
import com.google.gwt.uibinder.rebind.XMLElement;
/**
* Parses {@link com.google.gwt.user.client.ui.AbsolutePanel AbsolutePanel}
* widgets.
*/
public class AbsolutePanelParser implements ElementParser {
private static final String AT = "at";
public void parse(XMLElement elem, String fieldName, JClassType type,
UiBinderWriter writer) throws UnableToCompleteException {
// Parse children.
for (XMLElement child : elem.consumeChildElements()) {
// Parse position element.
if (isPositionElement(elem, child)) {
// Parse position.
String left = child.consumeRequiredIntAttribute("left");
String top = child.consumeRequiredIntAttribute("top");
// Add child widget.
XMLElement widgetElem = child.consumeSingleChildElement();
String widgetFieldName = writer.parseElementToField(widgetElem);
writer.addStatement("%1$s.add(%2$s, %3$s, %4$s);", fieldName,
widgetFieldName, left, top);
continue;
}
// Parse Widget.
if (writer.isWidgetElement(child)) {
String widgetFieldName = writer.parseElementToField(child);
writer.addStatement("%1$s.add(%2$s);", fieldName, widgetFieldName);
continue;
}
// die
writer.die(child, "Expecting only <%s:%s> or widget children in %s",
elem.getPrefix(), AT, elem);
}
}
private boolean isPositionElement(XMLElement parent, XMLElement child) {
if (!parent.getNamespaceUri().equals(child.getNamespaceUri())) {
return false;
}
if (!AT.equals(child.getLocalName())) {
return false;
}
return true;
}
}