/* * Copyright (c) 2002-2018 Gargoyle Software 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.gargoylesoftware.htmlunit.javascript.host.html; import com.gargoylesoftware.htmlunit.html.DomElement; import com.gargoylesoftware.htmlunit.html.DomNode; import com.gargoylesoftware.htmlunit.html.HtmlLabel; import com.gargoylesoftware.htmlunit.javascript.host.dom.NodeList; import java.util.ArrayList; import java.util.List; /** * A helper class to implement {@code .labels} property. * * @author Ahmed Ashour * */ class LabelsHelper extends NodeList { /** * Creates an instance. * * @param domeNode the {@link DomNode} * @param description a text useful for debugging */ LabelsHelper(final DomElement domeNode) { super(domeNode, false); } /** * This is overridden instead of {@link #computeElements()} in order to prevent caching at all. * * {@inheritDoc} */ @Override public List<DomNode> getElements() { final List<DomNode> response = new ArrayList<>(); final DomElement domElement = (DomElement) getDomNodeOrDie(); for (DomNode parent = domElement.getParentNode(); parent != null; parent = parent.getParentNode()) { if (parent instanceof HtmlLabel) { response.add(parent); } } final String id = domElement.getId(); if (id != DomElement.ATTRIBUTE_NOT_DEFINED) { for (final DomElement label : domElement.getHtmlPageOrNull().getElementsByTagName("label")) { if (id.equals(label.getAttributeDirect("for"))) { response.add(label); } } } return response; } }