| /* |
| * 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; |
| |
| /** |
| * Generates fields to hold named dom elements (e.g. <div |
| * ui:field="importantDiv">) |
| */ |
| class FieldInterpreter implements XMLElement.Interpreter<String> { |
| |
| private final String element; |
| private final UiBinderWriter writer; |
| |
| public FieldInterpreter(UiBinderWriter writer, String ancestorExpression) { |
| this.writer = writer; |
| this.element = ancestorExpression; |
| } |
| |
| public String interpretElement(XMLElement elem) |
| throws UnableToCompleteException { |
| String fieldName = writer.declareFieldIfNeeded(elem); |
| if (fieldName != null) { |
| String token = writer.declareDomField(elem, fieldName, element); |
| |
| if (elem.hasAttribute("id")) { |
| writer.die(elem, String.format( |
| "Cannot declare id=\"%s\" and %s=\"%s\" on the same element", |
| elem.consumeRawAttribute("id"), writer.getUiFieldAttributeName(), |
| fieldName)); |
| } |
| |
| elem.setAttribute("id", token); |
| } |
| |
| /* |
| * Return null because we don't want to replace the dom element with any |
| * particular string (though we may have consumed its id or gwt:field) |
| */ |
| return null; |
| } |
| } |