| /* |
| * 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.rebind; |
| |
| import com.google.gwt.core.ext.UnableToCompleteException; |
| |
| import org.w3c.dom.CDATASection; |
| import org.w3c.dom.Element; |
| import org.w3c.dom.Node; |
| import org.w3c.dom.NodeList; |
| import org.w3c.dom.Text; |
| |
| /** |
| * Traverses the children of a {@link Node}. |
| */ |
| class ChildWalker { |
| |
| /** |
| * Take a {@link NodeVisitor} and show it each child of the given {@link Node} |
| * that is of a type relevant to our templates. |
| * <p> |
| * Note that this is not a recursive call, though the visitor itself may |
| * choose to recurse |
| * |
| * @throws UnableToCompleteException |
| */ |
| void accept(Node n, NodeVisitor v) throws UnableToCompleteException { |
| |
| NodeList childNodes = n.getChildNodes(); |
| for (int i = 0; i < childNodes.getLength(); ++i) { |
| Node child = childNodes.item(i); |
| |
| switch (child.getNodeType()) { |
| case Node.ELEMENT_NODE: |
| v.visitElement((Element) child); |
| break; |
| |
| case Node.TEXT_NODE: |
| v.visitText((Text) child); |
| break; |
| |
| case Node.COMMENT_NODE: |
| // Ditch comment nodes. |
| break; |
| |
| case Node.CDATA_SECTION_NODE: |
| v.visitCData((CDATASection) child); |
| break; |
| |
| case Node.ENTITY_NODE: |
| case Node.ENTITY_REFERENCE_NODE: |
| case Node.ATTRIBUTE_NODE: |
| case Node.DOCUMENT_NODE: |
| case Node.DOCUMENT_FRAGMENT_NODE: |
| case Node.NOTATION_NODE: |
| case Node.PROCESSING_INSTRUCTION_NODE: |
| default: { |
| // None of these are expected node types. |
| throw new RuntimeException("Unexpected XML node"); |
| } |
| } |
| } |
| } |
| } |