| /* |
| * 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; |
| import com.google.gwt.user.client.ui.MenuBar; |
| import com.google.gwt.user.client.ui.MenuItem; |
| import com.google.gwt.user.client.ui.MenuItemSeparator; |
| |
| /** |
| * Parses {@link com.google.gwt.user.client.ui.MenuBar} widgets. |
| */ |
| public class MenuBarParser implements ElementParser { |
| |
| static final String BAD_CHILD = "Only MenuItem or MenuItemSeparator subclasses are valid children"; |
| |
| public void parse(XMLElement elem, String fieldName, JClassType type, |
| UiBinderWriter writer) throws UnableToCompleteException { |
| // Generate instantiation (Vertical MenuBars require a ctor param). |
| if (MenuBar.class.getName().equals(type.getQualifiedSourceName())) { |
| if (elem.hasAttribute("vertical")) { |
| String vertical = elem.consumeBooleanAttribute("vertical"); |
| writer.setFieldInitializerAsConstructor(fieldName, vertical); |
| } |
| } |
| |
| // Prepare base types. |
| JClassType itemType = writer.getOracle().findType(MenuItem.class.getName()); |
| JClassType separatorType = writer.getOracle().findType( |
| MenuItemSeparator.class.getName()); |
| |
| // Parse children. |
| for (XMLElement child : elem.consumeChildElements()) { |
| JClassType childType = writer.findFieldType(child); |
| |
| // MenuItem+ |
| if (itemType.isAssignableFrom(childType)) { |
| FieldWriter childField = writer.parseElementToField(child); |
| writer.addStatement("%1$s.addItem(%2$s);", fieldName, childField.getNextReference()); |
| continue; |
| } |
| |
| // MenuItemSeparator+ |
| if (separatorType.isAssignableFrom(childType)) { |
| FieldWriter childField = writer.parseElementToField(child); |
| writer.addStatement("%1$s.addSeparator(%2$s);", fieldName, childField.getNextReference()); |
| continue; |
| } |
| |
| // Fail |
| writer.die(child, BAD_CHILD); |
| } |
| } |
| } |