| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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. |
| */ |
| |
| /* $Id$ */ |
| |
| package org.apache.fop.fo.properties; |
| |
| import org.apache.fop.fo.Constants; |
| import org.apache.fop.fo.PropertyList; |
| import org.apache.fop.fo.expr.PropertyException; |
| |
| /** |
| * The "role" and "source-document" properties, see Section 7.5 of the XSL-FO 1.1 |
| * Recommendation. |
| */ |
| public final class CommonAccessibility { |
| |
| private static final CommonAccessibility DEFAULT_INSTANCE = new CommonAccessibility(null, null); |
| |
| private final String sourceDocument; |
| |
| private final String role; |
| |
| private CommonAccessibility(String sourceDocument, String role) { |
| this.sourceDocument = sourceDocument; |
| this.role = role; |
| } |
| |
| /** |
| * Returns an instance that matches the values (if any) in the given property list. |
| * |
| * @param propertyList a list from which to retrieve the accessibility properties |
| * @return the corresponding instance |
| * @throws PropertyException if a problem occurs while retrieving the properties |
| */ |
| public static CommonAccessibility getInstance(PropertyList propertyList) |
| throws PropertyException { |
| String sourceDocument = propertyList.get(Constants.PR_SOURCE_DOCUMENT).getString(); |
| if ("none".equals(sourceDocument)) { |
| sourceDocument = null; |
| } |
| String role = propertyList.get(Constants.PR_ROLE).getString(); |
| if ("none".equals(role)) { |
| role = null; |
| } |
| if (sourceDocument == null && role == null) { |
| return DEFAULT_INSTANCE; |
| } else { |
| return new CommonAccessibility(sourceDocument, role); |
| } |
| } |
| |
| /** |
| * Returns the value of the source-document property. |
| * |
| * @return the source document, or null if the property was set to "none" |
| */ |
| public String getSourceDocument() { |
| return sourceDocument; |
| } |
| |
| /** |
| * Returns the value of the role property. |
| * |
| * @return the role, or null if the property was set to "none" |
| */ |
| public String getRole() { |
| return role; |
| } |
| |
| } |