| <?php |
| /** |
| * File containing the abstrac ezcDocumentDocbookToHtmlBaseHandler base class. |
| * |
| * 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. |
| * |
| * @package Document |
| * @version //autogen// |
| * @license http://www.apache.org/licenses/LICENSE-2.0 Apache License, Version 2.0 |
| */ |
| |
| /** |
| * Basic converter which stores a list of handlers for each node in the docbook |
| * element tree. Those handlers will be executed for the elements, when found. |
| * The handler can then handle the repective subtree. |
| * |
| * Additional handlers may be added by the user to the converter class. |
| * |
| * @package Document |
| * @version //autogen// |
| */ |
| abstract class ezcDocumentDocbookToHtmlBaseHandler extends ezcDocumentElementVisitorHandler |
| { |
| /** |
| * Reference to HTML head element |
| * |
| * @var DOMElement |
| */ |
| private $head = null; |
| |
| /** |
| * Get head of HTML document |
| * |
| * Get the root node of the HTML document head |
| * |
| * @param DOMElement $element |
| * @return DOMElement |
| */ |
| protected function getHead( DOMElement $element ) |
| { |
| if ( $this->head === null ) |
| { |
| // Get reference to head node in destination document |
| $xpath = new DOMXPath( $element->ownerDocument ); |
| $this->head = $xpath->query( '/*[local-name() = "html"]/*[local-name() = "head"]' )->item( 0 ); |
| } |
| |
| return $this->head; |
| } |
| } |
| |
| ?> |