/zf/library/Zend/Feed/Writer/Extension/WellFormedWeb/Renderer/Entry.php

 1<?php
 2/**
 3 * Zend Framework
 4 *
 5 * LICENSE
 6 *
 7 * This source file is subject to the new BSD license that is bundled
 8 * with this package in the file LICENSE.txt.
 9 * It is also available through the world-wide-web at this URL:
10 * http://framework.zend.com/license/new-bsd
11 * If you did not receive a copy of the license and are unable to
12 * obtain it through the world-wide-web, please send an email
13 * to license@zend.com so we can send you a copy immediately.
14 *
15 * @category   Zend
16 * @package    Zend_Feed_Writer
17 * @copyright  Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
18 * @license    http://framework.zend.com/license/new-bsd     New BSD License
19 * @version    $Id: Entry.php 23775 2011-03-01 17:25:24Z ralph $
20 */
21
22/**
23 * @see Zend_Feed_Writer_Extension_RendererAbstract
24 */
25require_once 'Zend/Feed/Writer/Extension/RendererAbstract.php';
26
27/**
28 * @category   Zend
29 * @package    Zend_Feed_Writer
30 * @copyright  Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
31 * @license    http://framework.zend.com/license/new-bsd     New BSD License
32 */
33class Zend_Feed_Writer_Extension_WellFormedWeb_Renderer_Entry
34    extends Zend_Feed_Writer_Extension_RendererAbstract
35{
36
37    /**
38     * Set to TRUE if a rendering method actually renders something. This
39     * is used to prevent premature appending of a XML namespace declaration
40     * until an element which requires it is actually appended.
41     *
42     * @var bool
43     */
44    protected $_called = false;
45
46    /**
47     * Render entry
48     *
49     * @return void
50     */
51    public function render()
52    {
53        if (strtolower($this->getType()) == 'atom') {
54            return; // RSS 2.0 only
55        }
56        $this->_setCommentFeedLinks($this->_dom, $this->_base);
57        if ($this->_called) {
58            $this->_appendNamespaces();
59        }
60    }
61
62    /**
63     * Append entry namespaces
64     *
65     * @return void
66     */
67    protected function _appendNamespaces()
68    {
69        $this->getRootElement()->setAttribute('xmlns:wfw',
70            'http://wellformedweb.org/CommentAPI/');
71    }
72
73    /**
74     * Set entry comment feed links
75     *
76     * @param  DOMDocument $dom
77     * @param  DOMElement $root
78     * @return void
79     */
80    protected function _setCommentFeedLinks(DOMDocument $dom, DOMElement $root)
81    {
82        $links = $this->getDataContainer()->getCommentFeedLinks();
83        if (!$links || empty($links)) {
84            return;
85        }
86        foreach ($links as $link) {
87            if ($link['type'] == 'rss') {
88                $flink = $this->_dom->createElement('wfw:commentRss');
89                $text = $dom->createTextNode($link['uri']);
90                $flink->appendChild($text);
91                $root->appendChild($flink);
92            }
93        }
94        $this->_called = true;
95    }
96}