1<?php 2/** 3 * DokuWiki Plugin mediathumbnails (Syntax Component) 4 * 5 * @license GPL 2 http://www.gnu.org/licenses/gpl-2.0.html 6 * @author Thomas Schäfer <thomas.schaefer@itschert.net> 7 */ 8 9// must be run within Dokuwiki 10if (!defined('DOKU_INC')) { 11 die(); 12} 13 14class syntax_plugin_mediathumbnails extends DokuWiki_Syntax_Plugin { 15 16 /** 17 * @return string Syntax mode type 18 */ 19 public function getType() 20 { 21 return 'substition'; 22 } 23 24 /** 25 * @return string Paragraph type 26 */ 27 public function getPType() 28 { 29 return 'normal'; 30 } 31 32 /** 33 * @return int Sort order - Low numbers go before high numbers 34 */ 35 public function getSort() 36 { 37 return 1; 38 } 39 40 /** 41 * Connect lookup pattern to lexer. 42 * 43 * @param string $mode Parser mode 44 */ 45 public function connectTo($mode) 46 { 47 $this->Lexer->addSpecialPattern("{{thumbnail>.+?}}", $mode, substr(get_class($this), 7)); 48 } 49 50 /** 51 * Handle matches of the mediathumbnails syntax 52 * 53 * @param string $match The match of the syntax 54 * @param int $state The state of the handler 55 * @param int $pos The position in the document 56 * @param Doku_Handler $handler The handler 57 * 58 * @return array Data for the renderer 59 */ 60 public function handle($match, $state, $pos, Doku_Handler $handler) 61 { 62 // this is where thumbnails are stored within an odt file (which essentially is a .zip file named .odt) 63 $thumbnail_path = "Thumbnails/thumbnail.png"; 64 $thumbnail_ending = strrchr($thumbnail_path,'.'); 65 66 $mediapath_file = substr($match, 12, -2); //strip markup 67 68 $filepath_local_file = mediaFN($mediapath_file); 69 70 $zip = new ZipArchive; 71 72 if ($zip->open($filepath_local_file) !== TRUE) { 73 // odt file does not exist 74 return array(); 75 } 76 77 if ($zip->locateName($thumbnail_path) !== false) { 78 // thumbnail file exists 79 $fp = $zip->getStream($thumbnail_path); 80 if(!$fp) { 81 return array(); 82 } 83 84 $thumbnaildata = ''; 85 while (!feof($fp)) { 86 $thumbnaildata .= fread($fp, 8192); 87 } 88 89 fclose($fp); 90 91 // write thumbnail file to media folder 92 $filedir = dirname($filepath_local_file); 93 $filename = basename($filepath_local_file); 94 $extended_filename = substr($filename,0,strrpos($filename,'.')).".thumbnail".$thumbnail_ending; 95 96 $filepath_thumbnail = $filedir . DIRECTORY_SEPARATOR . $extended_filename; 97 file_put_contents($filepath_thumbnail, $thumbnaildata); 98 99 // give media path to renderer 100 $mediapath_thumbnail = substr($mediapath_file,0,strrpos($mediapath_file,':')) . ":" . $extended_filename; 101 return array($mediapath_file, $mediapath_thumbnail); 102 } 103 104 return array(); 105 } 106 107 /** 108 * Render xhtml output or metadata 109 * 110 * @param string $mode Renderer mode (supported modes: xhtml) 111 * @param Doku_Renderer $renderer The renderer 112 * @param array $data The data from the handler() function 113 * 114 * @return bool If rendering was successful. 115 */ 116 public function render($mode, Doku_Renderer $renderer, $data) 117 { 118 list ($mediapath_file, $mediapath_thumbnail) = $data; 119 120 if ($mode == 'xhtml') { 121 122 $src = ml($mediapath_thumbnail,array()); 123 124 $i = array(); 125 $i['width'] = $this->getConf('thumb_width'); 126 //$i['height'] = ''; 127 $i['title'] = $mediapath_file; 128 $i['class'] = 'tn'; 129 $iatt = buildAttributes($i); 130 131 $renderer->doc .= '<a href="/lib/exe/fetch.php?media=' . $mediapath_file . '">' . 132 '<img src="'.$src.'" '.$iatt.' />' . 133 '</a>'; 134 return true; 135 136 } elseif ($mode == 'odt') { 137 138 // TODO: yet to implement 139 $renderer->cdata(""); 140 return true; 141 142 } 143 144 return false; 145 } 146} 147 148
