| /* |
| * 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.FieldWriter; |
| 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(); |
| FieldWriter widgetField = writer.parseElementToField(widgetElem); |
| writer.addStatement("%1$s.add(%2$s, %3$s, %4$s);", fieldName, |
| widgetField.getNextReference(), left, top); |
| continue; |
| } |
| |
| // Parse Widget. |
| if (writer.isWidgetElement(child)) { |
| FieldWriter widgetFieldName = writer.parseElementToField(child); |
| writer.addStatement("%1$s.add(%2$s);", fieldName, widgetFieldName.getNextReference()); |
| 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; |
| } |
| } |