Commit | Line | Data |
---|---|---|
6855525e JL |
1 | <?php |
2 | ||
3 | class Text_Wiki_Render_Xhtml_Wikilink extends Text_Wiki_Render { | |
4 | ||
5 | var $conf = array( | |
6 | 'pages' => array(), // set to null or false to turn off page checks | |
7 | 'view_url' => 'http://example.com/index.php?page=%s', | |
8 | 'new_url' => 'http://example.com/new.php?page=%s', | |
9 | 'new_text' => '?', | |
10 | 'new_text_pos' => 'after', // 'before', 'after', or null/false | |
11 | 'css' => null, | |
12 | 'css_new' => null, | |
13 | 'exists_callback' => null // call_user_func() callback | |
14 | ); | |
15 | ||
16 | ||
17 | /** | |
18 | * | |
19 | * Renders a token into XHTML. | |
20 | * | |
21 | * @access public | |
22 | * | |
23 | * @param array $options The "options" portion of the token (second | |
24 | * element). | |
25 | * | |
26 | * @return string The text rendered from the token options. | |
27 | * | |
28 | */ | |
29 | ||
30 | function token($options) | |
31 | { | |
32 | // make nice variable names (page, anchor, text) | |
33 | extract($options); | |
34 | ||
35 | // is there a "page existence" callback? | |
36 | // we need to access it directly instead of through | |
37 | // getConf() because we'll need a reference (for | |
38 | // object instance method callbacks). | |
39 | if (isset($this->conf['exists_callback'])) { | |
40 | $callback =& $this->conf['exists_callback']; | |
41 | } else { | |
42 | $callback = false; | |
43 | } | |
44 | ||
45 | if ($callback) { | |
46 | // use the callback function | |
47 | $exists = call_user_func($callback, $page); | |
48 | } else { | |
49 | // no callback, go to the naive page array. | |
50 | $list =& $this->getConf('pages'); | |
51 | if (is_array($list)) { | |
52 | // yes, check against the page list | |
53 | $exists = in_array($page, $list); | |
54 | } else { | |
55 | // no, assume it exists | |
56 | $exists = true; | |
57 | } | |
58 | } | |
59 | ||
60 | // convert *after* checking against page names so as not to mess | |
61 | // up what the user typed and what we're checking. | |
62 | $page = htmlspecialchars($page); | |
63 | $anchor = htmlspecialchars($anchor); | |
64 | $text = htmlspecialchars($text); | |
65 | ||
66 | // does the page exist? | |
67 | if ($exists) { | |
68 | ||
69 | // PAGE EXISTS. | |
70 | ||
71 | // link to the page view, but we have to build | |
72 | // the HREF. we support both the old form where | |
73 | // the page always comes at the end, and the new | |
74 | // form that uses %s for sprintf() | |
75 | $href = $this->getConf('view_url'); | |
76 | ||
77 | if (strpos($href, '%s') === false) { | |
78 | // use the old form (page-at-end) | |
79 | $href = $href . $page . $anchor; | |
80 | } else { | |
81 | // use the new form (sprintf format string) | |
82 | $href = sprintf($href, $page . $anchor); | |
83 | } | |
84 | ||
85 | // get the CSS class and generate output | |
86 | $css = $this->formatConf(' class="%s"', 'css'); | |
87 | $output = "<a$css href=\"$href\">$text</a>"; | |
88 | ||
89 | } else { | |
90 | ||
91 | // PAGE DOES NOT EXIST. | |
92 | ||
93 | // link to a create-page url, but only if new_url is set | |
94 | $href = $this->getConf('new_url', null); | |
95 | ||
96 | // set the proper HREF | |
97 | if (! $href || trim($href) == '') { | |
98 | ||
99 | // no useful href, return the text as it is | |
100 | $output = $text; | |
101 | ||
102 | } else { | |
103 | ||
104 | // yes, link to the new-page href, but we have to build | |
105 | // it. we support both the old form where | |
106 | // the page always comes at the end, and the new | |
107 | // form that uses sprintf() | |
108 | if (strpos($href, '%s') === false) { | |
109 | // use the old form | |
110 | $href = $href . $page; | |
111 | } else { | |
112 | // use the new form | |
113 | $href = sprintf($href, $page); | |
114 | } | |
115 | } | |
116 | ||
117 | // get the appropriate CSS class and new-link text | |
118 | $css = $this->formatConf(' class="%s"', 'css_new'); | |
119 | $new = $this->getConf('new_text'); | |
120 | ||
121 | // what kind of linking are we doing? | |
122 | $pos = $this->getConf('new_text_pos'); | |
123 | if (! $pos || ! $new) { | |
124 | // no position (or no new_text), use css only on the page name | |
125 | $output = "<a$css href=\"$href\">$page</a>"; | |
126 | } elseif ($pos == 'before') { | |
127 | // use the new_text BEFORE the page name | |
128 | $output = "<a$css href=\"$href\">$new</a>$text"; | |
129 | } else { | |
130 | // default, use the new_text link AFTER the page name | |
131 | $output = "$text<a$css href=\"$href\">$new</a>"; | |
132 | } | |
133 | } | |
134 | return $output; | |
135 | } | |
136 | } | |
137 | ?> |