| /* |
| * Copyright 2009 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.uibinder.rebind.XMLElement.Interpreter; |
| import com.google.gwt.user.client.ui.MenuBar; |
| import com.google.gwt.user.client.ui.MenuItem; |
| |
| /** |
| * A parser for menu items. |
| */ |
| public class MenuItemParser implements ElementParser { |
| |
| public void parse(final XMLElement elem, String fieldName, JClassType type, |
| final UiBinderWriter writer) throws UnableToCompleteException { |
| |
| // Use special initializer for standard MenuItem, |
| // custom subclass should have default constructor. |
| if (MenuItem.class.getName().equals(type.getQualifiedSourceName())) { |
| writer.setFieldInitializerAsConstructor(fieldName, "\"\"", |
| "(com.google.gwt.user.client.Command) null"); |
| } |
| |
| final JClassType menuBarType = writer.getOracle().findType( |
| MenuBar.class.getCanonicalName()); |
| |
| class MenuBarInterpreter implements Interpreter<Boolean> { |
| FieldWriter menuBarField = null; |
| |
| public Boolean interpretElement(XMLElement child) |
| throws UnableToCompleteException { |
| |
| if (isMenuBar(child)) { |
| if (menuBarField != null) { |
| writer.die(child, "Only one MenuBar may be contained in a MenuItem"); |
| } |
| menuBarField = writer.parseElementToField(child); |
| return true; |
| } |
| |
| return false; |
| } |
| |
| boolean isMenuBar(XMLElement child) throws UnableToCompleteException { |
| return menuBarType.isAssignableFrom(writer.findFieldType(child)); |
| } |
| } |
| |
| MenuBarInterpreter interpreter = new MenuBarInterpreter(); |
| elem.consumeChildElements(interpreter); |
| |
| if (interpreter.menuBarField != null) { |
| writer.genPropertySet(fieldName, "subMenu", |
| interpreter.menuBarField.getNextReference()); |
| } |
| } |
| } |