* * @see also: https://www.dokuwiki.org/devel:javascript * * Allow inline JavaScript in DW page. * Make specified files to be loaded in head section of HTML by action component. * * SYNTAX: * * /path/to/javascript.js * /path/to/style.css * * * * * */ // must be run within Dokuwiki if (!defined('DOKU_INC')) die(); class syntax_plugin_inlinejs_preloader extends DokuWiki_Syntax_Plugin { public function getType() { // Syntax Type return 'protected'; } public function getPType() { // Paragraph Type return 'block'; } /** * Connect pattern to lexer */ protected $mode, $pattern; public function preConnect() { // drop 'syntax_' from class name $this->mode = substr(get_class($this), 7); // syntax pattern $this->pattern[1] = '(?=.*?)'; $this->pattern[21] = ''; $this->pattern[22] = ''; $this->pattern[23] = '.*?'; $this->pattern[4] = ''; } public function connectTo($mode) { $this->Lexer->addEntryPattern($this->pattern[1], $mode, $this->mode); } public function postConnect() { $this->Lexer->addExitPattern($this->pattern[4], $this->mode); $this->Lexer->addPattern($this->pattern[21], $this->mode); $this->Lexer->addPattern($this->pattern[22], $this->mode); $this->Lexer->addPattern($this->pattern[23], $this->mode); } public function getSort() { // sort number used to determine priority of this mode return 110; } /** * Plugin features */ protected $entries = null; protected $opts = null; /** * add an entry to dedicated class property */ private function _add_entry($tag, $data='') { switch ($tag) { case 'link': $this->entries[] = array( '_tag' => 'link', 'rel' => 'stylesheet', // 'type' => 'text/css', 'href' => $data, ); break; case 'style': $this->entries[] = array( '_tag' => 'style', // 'type' => 'text/css', '_data' => $data, ); break; case 'script': $this->entries[] = array( '_tag' => 'script', // 'type' => 'text/javascript', '_data'=> $data, ); break; case 'js': $this->entries[] = array( '_tag' => 'script', // 'type' => 'text/javascript', 'src' => $data, // '_data'=> '', ); break; } return count($this->entries); } /** * Handle the match */ public function handle($match, $state, $pos, Doku_Handler $handler) { global $conf; switch ($state) { case DOKU_LEXER_ENTER: // initialize class property $this->opts = array(); $this->entries = array(); // check whether optional parameter exists $this->opts['debug'] = (preg_match('/debug/',$match)) ? true : false; if ($match != '') { $this->opts['debug'] = true; } return false; case DOKU_LEXER_MATCHED: // identify syntax if (preg_match('/\w+/', substr($match, 1, 6), $matches)) { $tag = $matches[0]; } switch ($tag) { case 'link': // assume rel="stylesheet", lazy handling of external css if (preg_match('/\bhref=\"([^\"]*)\" ?/', $match, $attrs)) { $this->_add_entry('link', $attrs[1]); } break; case 'style': $css = substr($match, 7, -8); if (!empty($css)) { $this->_add_entry('style', $css); } break; case 'script': if (preg_match('/\bsrc=\"([^\"]*)\" ?/', $match, $attrs)) { $this->_add_entry('js', $attrs[1]); } else { $source = substr($match, 8, -9); if (!empty($source)) { $this->_add_entry('script', $source); } } break; } return false; case DOKU_LEXER_UNMATCHED: $matches = explode("\n", $match); foreach ($matches as $entry) { // remove comment line after "#" list($pathname, $comment) = explode('#', $entry, 2); $pathname = trim($pathname); // check entry type for local file path $entrytype = strtolower(pathinfo($pathname, PATHINFO_EXTENSION)); if (in_array($entrytype, array('css','js'))) { $tag = ($entrytype == 'css') ? 'link' : 'js'; $this->_add_entry($tag, $pathname); } } return false; case DOKU_LEXER_EXIT: $data = array($this->opts, $this->entries); $this->opts = null; $this->entries = null; if ($this->getConf('follow_htmlok') && !$conf['htmlok']) { $msg = $this->getPluginComponent().' is disabled.'; msg($this->getPluginName().': '.$msg, -1); return false; } return $data; } } /** * Create output */ public function render($format, Doku_Renderer $renderer, $data) { list($opts, $entries) = $data; switch ($format) { case 'metadata' : // metadata will be treated by action plugin $renderer->meta['plugin_inlinejs'] = $entries; return true; case 'xhtml' : if ($opts['debug']) { // debug: show html code to be added in head section $html = '
'; $html.= hsc($this->getLang('preloader-intro')).DOKU_LF; $html.= '
    '; foreach ($entries as $entry) { $attr = buildAttributes($entry); $out = '<'.$entry['_tag'].($attr ? ' '.$attr : ''); if (isset($entry['_data'])) { $out.= '>'.$entry['_data'].''; } else { $out.= '>'; } $html.= '
  1. '.hsc($out).'
    2. '; } $html.= '
'.DOKU_LF; $renderer->doc .= $html; } return true; } return false; } }