| /* |
| * Copyright 2008 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.uibinder.rebind.UiBinderWriter; |
| import com.google.gwt.uibinder.rebind.XMLElement; |
| import com.google.gwt.uibinder.rebind.messages.MessageWriter; |
| import com.google.gwt.uibinder.rebind.messages.MessagesWriter; |
| import com.google.gwt.uibinder.rebind.messages.PlaceholderInterpreter; |
| |
| /** |
| * The interpreter of choice for calls to {@link XMLElement#consumeInnerText}. |
| * It handles <m:msg/> elements, replacing them with references to Messages |
| * interface calls. |
| * <P> |
| * Calls to {@link XMLElement#consumeInnerHtml} should instead use |
| * {@link HtmlInterpreter} |
| */ |
| public class TextInterpreter implements XMLElement.Interpreter<String> { |
| |
| private final UiBinderWriter writer; |
| |
| public TextInterpreter(UiBinderWriter writer) { |
| this.writer = writer; |
| } |
| |
| public String interpretElement(XMLElement elem) |
| throws UnableToCompleteException { |
| MessagesWriter messages = writer.getMessages(); |
| if (messages.isMessage(elem)) { |
| String messageInvocation = consumeAsTextMessage(elem, messages); |
| return writer.tokenForStringExpression(elem, messageInvocation); |
| } |
| |
| return new UiTextInterpreter(writer).interpretElement(elem); |
| } |
| |
| private String consumeAsTextMessage(XMLElement elem, MessagesWriter messages) |
| throws UnableToCompleteException { |
| if (!elem.hasChildNodes()) { |
| writer.die(elem, "Empty message"); |
| } |
| |
| MessageWriter message = messages.newMessage(elem); |
| PlaceholderInterpreter interpreter = |
| new TextPlaceholderInterpreter(writer, message); |
| message.setDefaultMessage(elem.consumeInnerText(interpreter)); |
| return messages.declareMessage(message); |
| } |
| } |