137 lines
4.7 KiB
PHP
137 lines
4.7 KiB
PHP
<?php
|
|
|
|
class Text_Wiki_Render_Xhtml_Wikilink extends Text_Wiki_Render {
|
|
|
|
var $conf = array(
|
|
'pages' => array(), // set to null or false to turn off page checks
|
|
'view_url' => 'http://example.com/index.php?page=%s',
|
|
'new_url' => 'http://example.com/new.php?page=%s',
|
|
'new_text' => '?',
|
|
'new_text_pos' => 'after', // 'before', 'after', or null/false
|
|
'css' => null,
|
|
'css_new' => null,
|
|
'exists_callback' => null // call_user_func() callback
|
|
);
|
|
|
|
|
|
/**
|
|
*
|
|
* Renders a token into XHTML.
|
|
*
|
|
* @access public
|
|
*
|
|
* @param array $options The "options" portion of the token (second
|
|
* element).
|
|
*
|
|
* @return string The text rendered from the token options.
|
|
*
|
|
*/
|
|
|
|
function token($options)
|
|
{
|
|
// make nice variable names (page, anchor, text)
|
|
extract($options);
|
|
|
|
// is there a "page existence" callback?
|
|
// we need to access it directly instead of through
|
|
// getConf() because we'll need a reference (for
|
|
// object instance method callbacks).
|
|
if (isset($this->conf['exists_callback'])) {
|
|
$callback =& $this->conf['exists_callback'];
|
|
} else {
|
|
$callback = false;
|
|
}
|
|
|
|
if ($callback) {
|
|
// use the callback function
|
|
$exists = call_user_func($callback, $page);
|
|
} else {
|
|
// no callback, go to the naive page array.
|
|
$list =& $this->getConf('pages');
|
|
if (is_array($list)) {
|
|
// yes, check against the page list
|
|
$exists = in_array($page, $list);
|
|
} else {
|
|
// no, assume it exists
|
|
$exists = true;
|
|
}
|
|
}
|
|
|
|
// convert *after* checking against page names so as not to mess
|
|
// up what the user typed and what we're checking.
|
|
$page = htmlspecialchars($page);
|
|
$anchor = htmlspecialchars($anchor);
|
|
$text = htmlspecialchars($text);
|
|
|
|
// does the page exist?
|
|
if ($exists) {
|
|
|
|
// PAGE EXISTS.
|
|
|
|
// link to the page view, but we have to build
|
|
// the HREF. we support both the old form where
|
|
// the page always comes at the end, and the new
|
|
// form that uses %s for sprintf()
|
|
$href = $this->getConf('view_url');
|
|
|
|
if (strpos($href, '%s') === false) {
|
|
// use the old form (page-at-end)
|
|
$href = $href . $page . $anchor;
|
|
} else {
|
|
// use the new form (sprintf format string)
|
|
$href = sprintf($href, $page . $anchor);
|
|
}
|
|
|
|
// get the CSS class and generate output
|
|
$css = $this->formatConf(' class="%s"', 'css');
|
|
$output = "<a$css href=\"$href\">$text</a>";
|
|
|
|
} else {
|
|
|
|
// PAGE DOES NOT EXIST.
|
|
|
|
// link to a create-page url, but only if new_url is set
|
|
$href = $this->getConf('new_url', null);
|
|
|
|
// set the proper HREF
|
|
if (! $href || trim($href) == '') {
|
|
|
|
// no useful href, return the text as it is
|
|
$output = $text;
|
|
|
|
} else {
|
|
|
|
// yes, link to the new-page href, but we have to build
|
|
// it. we support both the old form where
|
|
// the page always comes at the end, and the new
|
|
// form that uses sprintf()
|
|
if (strpos($href, '%s') === false) {
|
|
// use the old form
|
|
$href = $href . $page;
|
|
} else {
|
|
// use the new form
|
|
$href = sprintf($href, $page);
|
|
}
|
|
}
|
|
|
|
// get the appropriate CSS class and new-link text
|
|
$css = $this->formatConf(' class="%s"', 'css_new');
|
|
$new = $this->getConf('new_text');
|
|
|
|
// what kind of linking are we doing?
|
|
$pos = $this->getConf('new_text_pos');
|
|
if (! $pos || ! $new) {
|
|
// no position (or no new_text), use css only on the page name
|
|
$output = "<a$css href=\"$href\">$page</a>";
|
|
} elseif ($pos == 'before') {
|
|
// use the new_text BEFORE the page name
|
|
$output = "<a$css href=\"$href\">$new</a>$text";
|
|
} else {
|
|
// default, use the new_text link AFTER the page name
|
|
$output = "$text<a$css href=\"$href\">$new</a>";
|
|
}
|
|
}
|
|
return $output;
|
|
}
|
|
}
|
|
?>
|