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<?php
/**
* Tag Plugin, topic component: displays links to all wiki pages with a certain tag
*
* @license GPL 2 (http://www.gnu.org/licenses/gpl.html)
* @author Esther Brunner <wikidesign@gmail.com>
*/
/**
* Topic syntax, displays links to all wiki pages with a certain tag
*/
class syntax_plugin_tag_topic extends DokuWiki_Syntax_Plugin {
/**
* @return string Syntax type
*/
function getType() { return 'substition'; }
/**
* @return string Paragraph type
*/
function getPType() { return 'block'; }
/**
* @return int Sort order
*/
function getSort() { return 295; }
/**
* @param string $mode Parser mode
*/
function connectTo($mode) {
$this->Lexer->addSpecialPattern('\{\{topic>.+?\}\}',$mode,'plugin_tag_topic');
}
/**
* Handle matches of the topic syntax
*
* @param string $match The match of the syntax
* @param int $state The state of the handler
* @param int $pos The position in the document
* @param Doku_Handler $handler The handler
* @return array Data for the renderer
*/
function handle($match, $state, $pos, Doku_Handler $handler) {
global $ID;
$match = substr($match, 8, -2); // strip {{topic> from start and }} from end
list($match, $flags) = explode('&', $match, 2);
$flags = explode('&', $flags);
list($ns, $tag) = explode('?', $match);
if (!$tag) {
$tag = $ns;
$ns = '';
}
if (($ns == '*') || ($ns == ':')) $ns = '';
elseif ($ns == '.') $ns = getNS($ID);
else $ns = cleanID($ns);
return array($ns, trim($tag), $flags);
}
/**
* Render xhtml output or metadata
*
* @param string $mode Renderer mode (supported modes: xhtml and metadata)
* @param Doku_Renderer $renderer The renderer
* @param array $data The data from the handler function
* @return bool If rendering was successful.
*/
function render($mode, Doku_Renderer $renderer, $data) {
list($ns, $tag, $flags) = $data;
/* @var helper_plugin_tag $my */
if ($my = $this->loadHelper('tag')) $pages = $my->getTopic($ns, '', $tag);
if (!isset($pages) || !$pages) return true; // nothing to display
if ($mode == 'xhtml') {
/* @var Doku_Renderer_xhtml $renderer */
// prevent caching to ensure content is always fresh
$renderer->nocache();
/* @var helper_plugin_pagelist $pagelist */
// let Pagelist Plugin do the work for us
if ((!$pagelist = $this->loadHelper('pagelist'))) {
return false;
}
$pagelist->sort = false;
$pagelist->rsort = false;
$configflags = explode(',', str_replace(" ", "", $this->getConf('pagelist_flags')));
$flags = array_merge($configflags, $flags);
foreach($flags as $key => $flag) {
if($flag == "") unset($flags[$key]);
}
$pagelist->setFlags($flags);
$pagelist->startList();
// Sort pages by pagename if required by flags
if($pagelist->sort || $pagelist->rsort) {
$keys = array();
$fnc = create_function('$a, $b', 'return strcmp(noNS($a["id"]), noNS($b["id"])); ');
usort($pages, $fnc);
// rsort is true - revserse sort the pages
if($pagelist->rsort) krsort($pages);
}
foreach ($pages as $page) {
$pagelist->addPage($page);
}
$renderer->doc .= $pagelist->finishList();
return true;
// for metadata renderer
/* } elseif ($mode == 'metadata') {
foreach ($pages as $page) {
$renderer->meta['relation']['references'][$page['id']] = true;
}
return true;*/ // causes issues with backlinks
}
return false;
}
}
// vim:ts=4:sw=4:et:
|
