xref: /dokuwiki/inc/parser/xhtml.php (revision 07b758d519aea391a47e43078884056964e232ee) 
1<?php
2/**
3 * Renderer for XHTML output
4 *
5 * @author Harry Fuecks <hfuecks@gmail.com>
6 * @author Andreas Gohr <andi@splitbrain.org>
7 */
8if(!defined('DOKU_INC')) die('meh.');
9
10if ( !defined('DOKU_LF') ) {
11    // Some whitespace to help View > Source
12    define ('DOKU_LF',"\n");
13}
14
15if ( !defined('DOKU_TAB') ) {
16    // Some whitespace to help View > Source
17    define ('DOKU_TAB',"\t");
18}
19
20require_once DOKU_INC . 'inc/parser/renderer.php';
21require_once DOKU_INC . 'inc/html.php';
22
23/**
24 * The Renderer
25 */
26class Doku_Renderer_xhtml extends Doku_Renderer {
27
28    // @access public
29    var $doc = '';        // will contain the whole document
30    var $toc = array();   // will contain the Table of Contents
31
32
33    var $headers = array();
34    var $footnotes = array();
35    var $lastlevel = 0;
36    var $node = array(0,0,0,0,0);
37    var $store = '';
38
39    var $_counter   = array(); // used as global counter, introduced for table classes
40    var $_codeblock = 0; // counts the code and file blocks, used to provide download links
41
42    function getFormat(){
43        return 'xhtml';
44    }
45
46
47    function document_start() {
48        //reset some internals
49        $this->toc     = array();
50        $this->headers = array();
51    }
52
53    function document_end() {
54        if ( count ($this->footnotes) > 0 ) {
55            $this->doc .= '<div class="footnotes">'.DOKU_LF;
56
57            $id = 0;
58            foreach ( $this->footnotes as $footnote ) {
59                $id++;   // the number of the current footnote
60
61                // check its not a placeholder that indicates actual footnote text is elsewhere
62                if (substr($footnote, 0, 5) != "@@FNT") {
63
64                    // open the footnote and set the anchor and backlink
65                    $this->doc .= '<div class="fn">';
66                    $this->doc .= '<sup><a href="#fnt__'.$id.'" id="fn__'.$id.'" name="fn__'.$id.'" class="fn_bot">';
67                    $this->doc .= $id.')</a></sup> '.DOKU_LF;
68
69                    // get any other footnotes that use the same markup
70                    $alt = array_keys($this->footnotes, "@@FNT$id");
71
72                    if (count($alt)) {
73                      foreach ($alt as $ref) {
74                        // set anchor and backlink for the other footnotes
75                        $this->doc .= ', <sup><a href="#fnt__'.($ref+1).'" id="fn__'.($ref+1).'" name="fn__'.($ref+1).'" class="fn_bot">';
76                        $this->doc .= ($ref+1).')</a></sup> '.DOKU_LF;
77                      }
78                    }
79
80                    // add footnote markup and close this footnote
81                    $this->doc .= $footnote;
82                    $this->doc .= '</div>' . DOKU_LF;
83                }
84            }
85            $this->doc .= '</div>'.DOKU_LF;
86        }
87
88        // Prepare the TOC
89        global $conf;
90        if($this->info['toc'] && is_array($this->toc) && $conf['tocminheads'] && count($this->toc) >= $conf['tocminheads']){
91            global $TOC;
92            $TOC = $this->toc;
93        }
94
95        // make sure there are no empty paragraphs
96        $this->doc = preg_replace('#<p>\s*</p>#','',$this->doc);
97    }
98
99    function toc_additem($id, $text, $level) {
100        global $conf;
101
102        //handle TOC
103        if($level >= $conf['toptoclevel'] && $level <= $conf['maxtoclevel']){
104            $this->toc[] = html_mktocitem($id, $text, $level-$conf['toptoclevel']+1);
105        }
106    }
107
108    function header($text, $level, $pos) {
109        if(!$text) return; //skip empty headlines
110
111        $hid = $this->_headerToLink($text,true);
112
113        //only add items within configured levels
114        $this->toc_additem($hid, $text, $level);
115
116        // adjust $node to reflect hierarchy of levels
117        $this->node[$level-1]++;
118        if ($level < $this->lastlevel) {
119            for ($i = 0; $i < $this->lastlevel-$level; $i++) {
120                $this->node[$this->lastlevel-$i-1] = 0;
121            }
122        }
123        $this->lastlevel = $level;
124
125        // write the header
126        $this->doc .= DOKU_LF.'<h'.$level.'><a name="'.$hid.'" id="'.$hid.'">';
127        $this->doc .= $this->_xmlEntities($text);
128        $this->doc .= "</a></h$level>".DOKU_LF;
129    }
130
131     /**
132     * Section edit marker is replaced by an edit button when
133     * the page is editable. Replacement done in 'inc/html.php#html_secedit'
134     *
135     * @author Andreas Gohr <andi@splitbrain.org>
136     * @author Ben Coburn   <btcoburn@silicodon.net>
137     */
138    function section_edit($start, $end, $level, $name) {
139        global $conf;
140
141        if ($start!=-1 && $level<=$conf['maxseclevel']) {
142            $name = str_replace('"', '', $name);
143            $this->doc .= '<!-- SECTION "'.$name.'" ['.$start.'-'.(($end===0)?'':$end).'] -->';
144        }
145    }
146
147    function section_open($level) {
148        $this->doc .= "<div class=\"level$level\">".DOKU_LF;
149    }
150
151    function section_close() {
152        $this->doc .= DOKU_LF.'</div>'.DOKU_LF;
153    }
154
155    function cdata($text) {
156        $this->doc .= $this->_xmlEntities($text);
157    }
158
159    function p_open() {
160        $this->doc .= DOKU_LF.'<p>'.DOKU_LF;
161    }
162
163    function p_close() {
164        $this->doc .= DOKU_LF.'</p>'.DOKU_LF;
165    }
166
167    function linebreak() {
168        $this->doc .= '<br/>'.DOKU_LF;
169    }
170
171    function hr() {
172        $this->doc .= '<hr />'.DOKU_LF;
173    }
174
175    function strong_open() {
176        $this->doc .= '<strong>';
177    }
178
179    function strong_close() {
180        $this->doc .= '</strong>';
181    }
182
183    function emphasis_open() {
184        $this->doc .= '<em>';
185    }
186
187    function emphasis_close() {
188        $this->doc .= '</em>';
189    }
190
191    function underline_open() {
192        $this->doc .= '<em class="u">';
193    }
194
195    function underline_close() {
196        $this->doc .= '</em>';
197    }
198
199    function monospace_open() {
200        $this->doc .= '<code>';
201    }
202
203    function monospace_close() {
204        $this->doc .= '</code>';
205    }
206
207    function subscript_open() {
208        $this->doc .= '<sub>';
209    }
210
211    function subscript_close() {
212        $this->doc .= '</sub>';
213    }
214
215    function superscript_open() {
216        $this->doc .= '<sup>';
217    }
218
219    function superscript_close() {
220        $this->doc .= '</sup>';
221    }
222
223    function deleted_open() {
224        $this->doc .= '<del>';
225    }
226
227    function deleted_close() {
228        $this->doc .= '</del>';
229    }
230
231    /**
232     * Callback for footnote start syntax
233     *
234     * All following content will go to the footnote instead of
235     * the document. To achieve this the previous rendered content
236     * is moved to $store and $doc is cleared
237     *
238     * @author Andreas Gohr <andi@splitbrain.org>
239     */
240    function footnote_open() {
241
242        // move current content to store and record footnote
243        $this->store = $this->doc;
244        $this->doc   = '';
245    }
246
247    /**
248     * Callback for footnote end syntax
249     *
250     * All rendered content is moved to the $footnotes array and the old
251     * content is restored from $store again
252     *
253     * @author Andreas Gohr
254     */
255    function footnote_close() {
256
257        // recover footnote into the stack and restore old content
258        $footnote = $this->doc;
259        $this->doc = $this->store;
260        $this->store = '';
261
262        // check to see if this footnote has been seen before
263        $i = array_search($footnote, $this->footnotes);
264
265        if ($i === false) {
266            // its a new footnote, add it to the $footnotes array
267            $id = count($this->footnotes)+1;
268            $this->footnotes[count($this->footnotes)] = $footnote;
269        } else {
270            // seen this one before, translate the index to an id and save a placeholder
271            $i++;
272            $id = count($this->footnotes)+1;
273            $this->footnotes[count($this->footnotes)] = "@@FNT".($i);
274        }
275
276        // output the footnote reference and link
277        $this->doc .= '<sup><a href="#fn__'.$id.'" name="fnt__'.$id.'" id="fnt__'.$id.'" class="fn_top">'.$id.')</a></sup>';
278    }
279
280    function listu_open() {
281        $this->doc .= '<ul>'.DOKU_LF;
282    }
283
284    function listu_close() {
285        $this->doc .= '</ul>'.DOKU_LF;
286    }
287
288    function listo_open() {
289        $this->doc .= '<ol>'.DOKU_LF;
290    }
291
292    function listo_close() {
293        $this->doc .= '</ol>'.DOKU_LF;
294    }
295
296    function listitem_open($level) {
297        $this->doc .= '<li class="level'.$level.'">';
298    }
299
300    function listitem_close() {
301        $this->doc .= '</li>'.DOKU_LF;
302    }
303
304    function listcontent_open() {
305        $this->doc .= '<div class="li">';
306    }
307
308    function listcontent_close() {
309        $this->doc .= '</div>'.DOKU_LF;
310    }
311
312    function unformatted($text) {
313        $this->doc .= $this->_xmlEntities($text);
314    }
315
316    /**
317     * Execute PHP code if allowed
318     *
319     * @param  string   $wrapper   html element to wrap result if $conf['phpok'] is okff
320     *
321     * @author Andreas Gohr <andi@splitbrain.org>
322     */
323    function php($text, $wrapper='code') {
324        global $conf;
325
326        if($conf['phpok']){
327          ob_start();
328          eval($text);
329          $this->doc .= ob_get_contents();
330          ob_end_clean();
331        } else {
332          $this->doc .= p_xhtml_cached_geshi($text, 'php', $wrapper);
333        }
334    }
335
336    function phpblock($text) {
337        $this->php($text, 'pre');
338    }
339
340    /**
341     * Insert HTML if allowed
342     *
343     * @param  string   $wrapper   html element to wrap result if $conf['htmlok'] is okff
344     *
345     * @author Andreas Gohr <andi@splitbrain.org>
346     */
347    function html($text, $wrapper='code') {
348        global $conf;
349
350        if($conf['htmlok']){
351          $this->doc .= $text;
352        } else {
353          $this->doc .= p_xhtml_cached_geshi($text, 'html4strict', $wrapper);
354        }
355    }
356
357    function htmlblock($text) {
358        $this->html($text, 'pre');
359    }
360
361    function quote_open() {
362        $this->doc .= '<blockquote><div class="no">'.DOKU_LF;
363    }
364
365    function quote_close() {
366        $this->doc .= '</div></blockquote>'.DOKU_LF;
367    }
368
369    function preformatted($text) {
370        $this->doc .= '<pre class="code">' . trim($this->_xmlEntities($text),"\n\r") . '</pre>'. DOKU_LF;
371    }
372
373    function file($text, $language=null, $filename=null) {
374        $this->_highlight('file',$text,$language,$filename);
375    }
376
377    function code($text, $language=null, $filename=null) {
378        $this->_highlight('code',$text,$language,$filename);
379    }
380
381    /**
382     * Use GeSHi to highlight language syntax in code and file blocks
383     *
384     * @author Andreas Gohr <andi@splitbrain.org>
385     */
386    function _highlight($type, $text, $language=null, $filename=null) {
387        global $conf;
388        global $ID;
389        global $lang;
390
391        if($filename){
392            // add icon
393            list($ext) = mimetype($filename,false);
394            $class = preg_replace('/[^_\-a-z0-9]+/i','_',$ext);
395            $class = 'mediafile mf_'.$class;
396
397            $this->doc .= '<dl class="'.$type.'">'.DOKU_LF;
398            $this->doc .= '<dt><a href="'.exportlink($ID,'code',array('codeblock'=>$this->_codeblock)).'" title="'.$lang['download'].'" class="'.$class.'">';
399            $this->doc .= hsc($filename);
400            $this->doc .= '</a></dt>'.DOKU_LF.'<dd>';
401        }
402
403        if ( is_null($language) ) {
404            $this->doc .= '<pre class="'.$type.'">'.$this->_xmlEntities($text).'</pre>'.DOKU_LF;
405        } else {
406            $class = 'code'; //we always need the code class to make the syntax highlighting apply
407            if($type != 'code') $class .= ' '.$type;
408
409            $this->doc .= "<pre class=\"$class $language\">".p_xhtml_cached_geshi($text, $language, '').'</pre>'.DOKU_LF;
410        }
411
412        if($filename){
413            $this->doc .= '</dd></dl>'.DOKU_LF;
414        }
415
416        $this->_codeblock++;
417    }
418
419    function acronym($acronym) {
420
421        if ( array_key_exists($acronym, $this->acronyms) ) {
422
423            $title = $this->_xmlEntities($this->acronyms[$acronym]);
424
425            $this->doc .= '<acronym title="'.$title
426                .'">'.$this->_xmlEntities($acronym).'</acronym>';
427
428        } else {
429            $this->doc .= $this->_xmlEntities($acronym);
430        }
431    }
432
433    function smiley($smiley) {
434        if ( array_key_exists($smiley, $this->smileys) ) {
435            $title = $this->_xmlEntities($this->smileys[$smiley]);
436            $this->doc .= '<img src="'.DOKU_BASE.'lib/images/smileys/'.$this->smileys[$smiley].
437                '" class="middle" alt="'.
438                    $this->_xmlEntities($smiley).'" />';
439        } else {
440            $this->doc .= $this->_xmlEntities($smiley);
441        }
442    }
443
444    /*
445    * not used
446    function wordblock($word) {
447        if ( array_key_exists($word, $this->badwords) ) {
448            $this->doc .= '** BLEEP **';
449        } else {
450            $this->doc .= $this->_xmlEntities($word);
451        }
452    }
453    */
454
455    function entity($entity) {
456        if ( array_key_exists($entity, $this->entities) ) {
457            $this->doc .= $this->entities[$entity];
458        } else {
459            $this->doc .= $this->_xmlEntities($entity);
460        }
461    }
462
463    function multiplyentity($x, $y) {
464        $this->doc .= "$x&times;$y";
465    }
466
467    function singlequoteopening() {
468        global $lang;
469        $this->doc .= $lang['singlequoteopening'];
470    }
471
472    function singlequoteclosing() {
473        global $lang;
474        $this->doc .= $lang['singlequoteclosing'];
475    }
476
477    function apostrophe() {
478        global $lang;
479        $this->doc .= $lang['apostrophe'];
480    }
481
482    function doublequoteopening() {
483        global $lang;
484        $this->doc .= $lang['doublequoteopening'];
485    }
486
487    function doublequoteclosing() {
488        global $lang;
489        $this->doc .= $lang['doublequoteclosing'];
490    }
491
492    /**
493    */
494    function camelcaselink($link) {
495      $this->internallink($link,$link);
496    }
497
498
499    function locallink($hash, $name = NULL){
500        global $ID;
501        $name  = $this->_getLinkTitle($name, $hash, $isImage);
502        $hash  = $this->_headerToLink($hash);
503        $title = $ID.' &crarr;';
504        $this->doc .= '<a href="#'.$hash.'" title="'.$title.'" class="wikilink1">';
505        $this->doc .= $name;
506        $this->doc .= '</a>';
507    }
508
509    /**
510     * Render an internal Wiki Link
511     *
512     * $search,$returnonly & $linktype are not for the renderer but are used
513     * elsewhere - no need to implement them in other renderers
514     *
515     * @author Andreas Gohr <andi@splitbrain.org>
516     */
517    function internallink($id, $name = NULL, $search=NULL,$returnonly=false,$linktype='content') {
518        global $conf;
519        global $ID;
520        // default name is based on $id as given
521        $default = $this->_simpleTitle($id);
522
523        // now first resolve and clean up the $id
524        resolve_pageid(getNS($ID),$id,$exists);
525        $name = $this->_getLinkTitle($name, $default, $isImage, $id, $linktype);
526        if ( !$isImage ) {
527            if ( $exists ) {
528                $class='wikilink1';
529            } else {
530                $class='wikilink2';
531                $link['rel']='nofollow';
532            }
533        } else {
534            $class='media';
535        }
536
537        //keep hash anchor
538        list($id,$hash) = explode('#',$id,2);
539        if(!empty($hash)) $hash = $this->_headerToLink($hash);
540
541        //prepare for formating
542        $link['target'] = $conf['target']['wiki'];
543        $link['style']  = '';
544        $link['pre']    = '';
545        $link['suf']    = '';
546        // highlight link to current page
547        if ($id == $ID) {
548            $link['pre']    = '<span class="curid">';
549            $link['suf']    = '</span>';
550        }
551        $link['more']   = '';
552        $link['class']  = $class;
553        $link['url']    = wl($id);
554        $link['name']   = $name;
555        $link['title']  = $id;
556        //add search string
557        if($search){
558            ($conf['userewrite']) ? $link['url'].='?' : $link['url'].='&amp;';
559            if(is_array($search)){
560                $search = array_map('rawurlencode',$search);
561                $link['url'] .= 's[]='.join('&amp;s[]=',$search);
562            }else{
563                $link['url'] .= 's='.rawurlencode($search);
564            }
565        }
566
567        //keep hash
568        if($hash) $link['url'].='#'.$hash;
569
570        //output formatted
571        if($returnonly){
572            return $this->_formatLink($link);
573        }else{
574            $this->doc .= $this->_formatLink($link);
575        }
576    }
577
578    function externallink($url, $name = NULL) {
579        global $conf;
580
581        $name = $this->_getLinkTitle($name, $url, $isImage);
582
583        if ( !$isImage ) {
584            $class='urlextern';
585        } else {
586            $class='media';
587        }
588
589        //prepare for formating
590        $link['target'] = $conf['target']['extern'];
591        $link['style']  = '';
592        $link['pre']    = '';
593        $link['suf']    = '';
594        $link['more']   = '';
595        $link['class']  = $class;
596        $link['url']    = $url;
597
598        $link['name']   = $name;
599        $link['title']  = $this->_xmlEntities($url);
600        if($conf['relnofollow']) $link['more'] .= ' rel="nofollow"';
601
602        //output formatted
603        $this->doc .= $this->_formatLink($link);
604    }
605
606    /**
607    */
608    function interwikilink($match, $name = NULL, $wikiName, $wikiUri) {
609        global $conf;
610
611        $link = array();
612        $link['target'] = $conf['target']['interwiki'];
613        $link['pre']    = '';
614        $link['suf']    = '';
615        $link['more']   = '';
616        $link['name']   = $this->_getLinkTitle($name, $wikiUri, $isImage);
617
618        //get interwiki URL
619        $url = $this->_resolveInterWiki($wikiName,$wikiUri);
620
621        if ( !$isImage ) {
622            $class = preg_replace('/[^_\-a-z0-9]+/i','_',$wikiName);
623            $link['class'] = "interwiki iw_$class";
624        } else {
625            $link['class'] = 'media';
626        }
627
628        //do we stay at the same server? Use local target
629        if( strpos($url,DOKU_URL) === 0 ){
630            $link['target'] = $conf['target']['wiki'];
631        }
632
633        $link['url'] = $url;
634        $link['title'] = htmlspecialchars($link['url']);
635
636        //output formatted
637        $this->doc .= $this->_formatLink($link);
638    }
639
640    /**
641     */
642    function windowssharelink($url, $name = NULL) {
643        global $conf;
644        global $lang;
645        //simple setup
646        $link['target'] = $conf['target']['windows'];
647        $link['pre']    = '';
648        $link['suf']   = '';
649        $link['style']  = '';
650
651        $link['name'] = $this->_getLinkTitle($name, $url, $isImage);
652        if ( !$isImage ) {
653            $link['class'] = 'windows';
654        } else {
655            $link['class'] = 'media';
656        }
657
658
659        $link['title'] = $this->_xmlEntities($url);
660        $url = str_replace('\\','/',$url);
661        $url = 'file:///'.$url;
662        $link['url'] = $url;
663
664        //output formatted
665        $this->doc .= $this->_formatLink($link);
666    }
667
668    function emaillink($address, $name = NULL) {
669        global $conf;
670        //simple setup
671        $link = array();
672        $link['target'] = '';
673        $link['pre']    = '';
674        $link['suf']   = '';
675        $link['style']  = '';
676        $link['more']   = '';
677
678        $name = $this->_getLinkTitle($name, '', $isImage);
679        if ( !$isImage ) {
680            $link['class']='mail JSnocheck';
681        } else {
682            $link['class']='media JSnocheck';
683        }
684
685        $address = $this->_xmlEntities($address);
686        $address = obfuscate($address);
687        $title   = $address;
688
689        if(empty($name)){
690            $name = $address;
691        }
692
693        if($conf['mailguard'] == 'visible') $address = rawurlencode($address);
694
695        $link['url']   = 'mailto:'.$address;
696        $link['name']  = $name;
697        $link['title'] = $title;
698
699        //output formatted
700        $this->doc .= $this->_formatLink($link);
701    }
702
703    function internalmedia ($src, $title=NULL, $align=NULL, $width=NULL,
704                            $height=NULL, $cache=NULL, $linking=NULL) {
705        global $ID;
706        list($src,$hash) = explode('#',$src,2);
707        resolve_mediaid(getNS($ID),$src, $exists);
708
709        $noLink = false;
710        $render = ($linking == 'linkonly') ? false : true;
711        $link = $this->_getMediaLinkConf($src, $title, $align, $width, $height, $cache, $render);
712
713        list($ext,$mime,$dl) = mimetype($src,false);
714        if(substr($mime,0,5) == 'image' && $render){
715            $link['url'] = ml($src,array('id'=>$ID,'cache'=>$cache),($linking=='direct'));
716        }elseif($mime == 'application/x-shockwave-flash' && $render){
717            // don't link flash movies
718            $noLink = true;
719        }else{
720            // add file icons
721            $class = preg_replace('/[^_\-a-z0-9]+/i','_',$ext);
722            $link['class'] .= ' mediafile mf_'.$class;
723            $link['url'] = ml($src,array('id'=>$ID,'cache'=>$cache),true);
724        }
725
726        if($hash) $link['url'] .= '#'.$hash;
727
728        //markup non existing files
729        if (!$exists)
730          $link['class'] .= ' wikilink2';
731
732        //output formatted
733        if ($linking == 'nolink' || $noLink) $this->doc .= $link['name'];
734        else $this->doc .= $this->_formatLink($link);
735    }
736
737    function externalmedia ($src, $title=NULL, $align=NULL, $width=NULL,
738                            $height=NULL, $cache=NULL, $linking=NULL) {
739        list($src,$hash) = explode('#',$src,2);
740        $noLink = false;
741        $render = ($linking == 'linkonly') ? false : true;
742        $link = $this->_getMediaLinkConf($src, $title, $align, $width, $height, $cache, $render);
743
744        $link['url']    = ml($src,array('cache'=>$cache));
745
746        list($ext,$mime,$dl) = mimetype($src,false);
747        if(substr($mime,0,5) == 'image' && $render){
748            // link only jpeg images
749            // if ($ext != 'jpg' && $ext != 'jpeg') $noLink = true;
750        }elseif($mime == 'application/x-shockwave-flash' && $render){
751            // don't link flash movies
752            $noLink = true;
753        }else{
754            // add file icons
755            $class = preg_replace('/[^_\-a-z0-9]+/i','_',$ext);
756            $link['class'] .= ' mediafile mf_'.$class;
757        }
758
759        if($hash) $link['url'] .= '#'.$hash;
760
761        //output formatted
762        if ($linking == 'nolink' || $noLink) $this->doc .= $link['name'];
763        else $this->doc .= $this->_formatLink($link);
764    }
765
766    /**
767     * Renders an RSS feed
768     *
769     * @author Andreas Gohr <andi@splitbrain.org>
770     */
771    function rss ($url,$params){
772        global $lang;
773        global $conf;
774
775        require_once(DOKU_INC.'inc/FeedParser.php');
776        $feed = new FeedParser();
777        $feed->set_feed_url($url);
778
779        //disable warning while fetching
780        if (!defined('DOKU_E_LEVEL')) { $elvl = error_reporting(E_ERROR); }
781        $rc = $feed->init();
782        if (!defined('DOKU_E_LEVEL')) { error_reporting($elvl); }
783
784        //decide on start and end
785        if($params['reverse']){
786            $mod = -1;
787            $start = $feed->get_item_quantity()-1;
788            $end   = $start - ($params['max']);
789            $end   = ($end < -1) ? -1 : $end;
790        }else{
791            $mod   = 1;
792            $start = 0;
793            $end   = $feed->get_item_quantity();
794            $end   = ($end > $params['max']) ? $params['max'] : $end;;
795        }
796
797        $this->doc .= '<ul class="rss">';
798        if($rc){
799            for ($x = $start; $x != $end; $x += $mod) {
800                $item = $feed->get_item($x);
801                $this->doc .= '<li><div class="li">';
802                // support feeds without links
803                $lnkurl = $item->get_permalink();
804                if($lnkurl){
805                    // title is escaped by SimplePie, we unescape here because it
806                    // is escaped again in externallink() FS#1705
807                    $this->externallink($item->get_permalink(),
808                                        htmlspecialchars_decode($item->get_title()));
809                }else{
810                    $this->doc .= ' '.$item->get_title();
811                }
812                if($params['author']){
813                    $author = $item->get_author(0);
814                    if($author){
815                        $name = $author->get_name();
816                        if(!$name) $name = $author->get_email();
817                        if($name) $this->doc .= ' '.$lang['by'].' '.$name;
818                    }
819                }
820                if($params['date']){
821                    $this->doc .= ' ('.$item->get_local_date($conf['dformat']).')';
822                }
823                if($params['details']){
824                    $this->doc .= '<div class="detail">';
825                    if($conf['htmlok']){
826                        $this->doc .= $item->get_description();
827                    }else{
828                        $this->doc .= strip_tags($item->get_description());
829                    }
830                    $this->doc .= '</div>';
831                }
832
833                $this->doc .= '</div></li>';
834            }
835        }else{
836            $this->doc .= '<li><div class="li">';
837            $this->doc .= '<em>'.$lang['rssfailed'].'</em>';
838            $this->externallink($url);
839            if($conf['allowdebug']){
840                $this->doc .= '<!--'.hsc($feed->error).'-->';
841            }
842            $this->doc .= '</div></li>';
843        }
844        $this->doc .= '</ul>';
845    }
846
847    // $numrows not yet implemented
848    function table_open($maxcols = NULL, $numrows = NULL){
849        // initialize the row counter used for classes
850        $this->_counter['row_counter'] = 0;
851        $this->doc .= '<table class="inline">'.DOKU_LF;
852    }
853
854    function table_close(){
855        $this->doc .= '</table>'.DOKU_LF;
856    }
857
858    function tablerow_open(){
859        // initialize the cell counter used for classes
860        $this->_counter['cell_counter'] = 0;
861        $class = 'row' . $this->_counter['row_counter']++;
862        $this->doc .= DOKU_TAB . '<tr class="'.$class.'">' . DOKU_LF . DOKU_TAB . DOKU_TAB;
863    }
864
865    function tablerow_close(){
866        $this->doc .= DOKU_LF . DOKU_TAB . '</tr>' . DOKU_LF;
867    }
868
869    function tableheader_open($colspan = 1, $align = NULL){
870        $class = 'class="col' . $this->_counter['cell_counter']++;
871        if ( !is_null($align) ) {
872            $class .= ' '.$align.'align';
873        }
874        $class .= '"';
875        $this->doc .= '<th ' . $class;
876        if ( $colspan > 1 ) {
877            $this->_counter['cell_counter'] += $colspan-1;
878            $this->doc .= ' colspan="'.$colspan.'"';
879        }
880        $this->doc .= '>';
881    }
882
883    function tableheader_close(){
884        $this->doc .= '</th>';
885    }
886
887    function tablecell_open($colspan = 1, $align = NULL){
888        $class = 'class="col' . $this->_counter['cell_counter']++;
889        if ( !is_null($align) ) {
890            $class .= ' '.$align.'align';
891        }
892        $class .= '"';
893        $this->doc .= '<td '.$class;
894        if ( $colspan > 1 ) {
895            $this->_counter['cell_counter'] += $colspan-1;
896            $this->doc .= ' colspan="'.$colspan.'"';
897        }
898        $this->doc .= '>';
899    }
900
901    function tablecell_close(){
902        $this->doc .= '</td>';
903    }
904
905    //----------------------------------------------------------
906    // Utils
907
908    /**
909     * Build a link
910     *
911     * Assembles all parts defined in $link returns HTML for the link
912     *
913     * @author Andreas Gohr <andi@splitbrain.org>
914     */
915    function _formatLink($link){
916        //make sure the url is XHTML compliant (skip mailto)
917        if(substr($link['url'],0,7) != 'mailto:'){
918            $link['url'] = str_replace('&','&amp;',$link['url']);
919            $link['url'] = str_replace('&amp;amp;','&amp;',$link['url']);
920        }
921        //remove double encodings in titles
922        $link['title'] = str_replace('&amp;amp;','&amp;',$link['title']);
923
924        // be sure there are no bad chars in url or title
925        // (we can't do this for name because it can contain an img tag)
926        $link['url']   = strtr($link['url'],array('>'=>'%3E','<'=>'%3C','"'=>'%22'));
927        $link['title'] = strtr($link['title'],array('>'=>'&gt;','<'=>'&lt;','"'=>'&quot;'));
928
929        $ret  = '';
930        $ret .= $link['pre'];
931        $ret .= '<a href="'.$link['url'].'"';
932        if(!empty($link['class']))  $ret .= ' class="'.$link['class'].'"';
933        if(!empty($link['target'])) $ret .= ' target="'.$link['target'].'"';
934        if(!empty($link['title']))  $ret .= ' title="'.$link['title'].'"';
935        if(!empty($link['style']))  $ret .= ' style="'.$link['style'].'"';
936        if(!empty($link['rel']))    $ret .= ' rel="'.$link['rel'].'"';
937        if(!empty($link['more']))   $ret .= ' '.$link['more'];
938        $ret .= '>';
939        $ret .= $link['name'];
940        $ret .= '</a>';
941        $ret .= $link['suf'];
942        return $ret;
943    }
944
945    /**
946     * Renders internal and external media
947     *
948     * @author Andreas Gohr <andi@splitbrain.org>
949     */
950    function _media ($src, $title=NULL, $align=NULL, $width=NULL,
951                      $height=NULL, $cache=NULL, $render = true) {
952
953        $ret = '';
954
955        list($ext,$mime,$dl) = mimetype($src);
956        if(substr($mime,0,5) == 'image'){
957            // first get the $title
958            if (!is_null($title)) {
959                $title  = $this->_xmlEntities($title);
960            }elseif($ext == 'jpg' || $ext == 'jpeg'){
961                //try to use the caption from IPTC/EXIF
962                require_once(DOKU_INC.'inc/JpegMeta.php');
963                $jpeg =& new JpegMeta(mediaFN($src));
964                if($jpeg !== false) $cap = $jpeg->getTitle();
965                if($cap){
966                    $title = $this->_xmlEntities($cap);
967                }
968            }
969            if (!$render) {
970                // if the picture is not supposed to be rendered
971                // return the title of the picture
972                if (!$title) {
973                    // just show the sourcename
974                    $title = $this->_xmlEntities(basename(noNS($src)));
975                }
976                return $title;
977            }
978            //add image tag
979            $ret .= '<img src="'.ml($src,array('w'=>$width,'h'=>$height,'cache'=>$cache)).'"';
980            $ret .= ' class="media'.$align.'"';
981
982            // make left/right alignment for no-CSS view work (feeds)
983            if($align == 'right') $ret .= ' align="right"';
984            if($align == 'left')  $ret .= ' align="left"';
985
986            if ($title) {
987                $ret .= ' title="' . $title . '"';
988                $ret .= ' alt="'   . $title .'"';
989            }else{
990                $ret .= ' alt=""';
991            }
992
993            if ( !is_null($width) )
994                $ret .= ' width="'.$this->_xmlEntities($width).'"';
995
996            if ( !is_null($height) )
997                $ret .= ' height="'.$this->_xmlEntities($height).'"';
998
999            $ret .= ' />';
1000
1001        }elseif($mime == 'application/x-shockwave-flash'){
1002            if (!$render) {
1003                // if the flash is not supposed to be rendered
1004                // return the title of the flash
1005                if (!$title) {
1006                    // just show the sourcename
1007                    $title = basename(noNS($src));
1008                }
1009                return $this->_xmlEntities($title);
1010            }
1011
1012            $att = array();
1013            $att['class'] = "media$align";
1014            if($align == 'right') $att['align'] = 'right';
1015            if($align == 'left')  $att['align'] = 'left';
1016            $ret .= html_flashobject(ml($src,array('cache'=>$cache)),$width,$height,
1017                                     array('quality' => 'high'),
1018                                     null,
1019                                     $att,
1020                                     $this->_xmlEntities($title));
1021        }elseif($title){
1022            // well at least we have a title to display
1023            $ret .= $this->_xmlEntities($title);
1024        }else{
1025            // just show the sourcename
1026            $ret .= $this->_xmlEntities(basename(noNS($src)));
1027        }
1028
1029        return $ret;
1030    }
1031
1032    function _xmlEntities($string) {
1033        return htmlspecialchars($string,ENT_QUOTES,'UTF-8');
1034    }
1035
1036    /**
1037     * Creates a linkid from a headline
1038     *
1039     * @param string  $title   The headline title
1040     * @param boolean $create  Create a new unique ID?
1041     * @author Andreas Gohr <andi@splitbrain.org>
1042     */
1043    function _headerToLink($title,$create=false) {
1044        if($create){
1045            return sectionID($title,$this->headers);
1046        }else{
1047            $check = false;
1048            return sectionID($title,$check);
1049        }
1050    }
1051
1052    /**
1053     * Construct a title and handle images in titles
1054     *
1055     * @author Harry Fuecks <hfuecks@gmail.com>
1056     */
1057    function _getLinkTitle($title, $default, & $isImage, $id=NULL, $linktype='content') {
1058        global $conf;
1059
1060        $isImage = false;
1061        if ( is_null($title) || trim($title)=='') {
1062            if (useHeading($linktype) && $id) {
1063                $heading = p_get_first_heading($id,true);
1064                if ($heading) {
1065                    return $this->_xmlEntities($heading);
1066                }
1067            }
1068            return $this->_xmlEntities($default);
1069        } else if ( is_array($title) ) {
1070            $isImage = true;
1071            return $this->_imageTitle($title);
1072        } else {
1073            return $this->_xmlEntities($title);
1074        }
1075    }
1076
1077    /**
1078     * Returns an HTML code for images used in link titles
1079     *
1080     * @todo Resolve namespace on internal images
1081     * @author Andreas Gohr <andi@splitbrain.org>
1082     */
1083    function _imageTitle($img) {
1084        return $this->_media($img['src'],
1085                              $img['title'],
1086                              $img['align'],
1087                              $img['width'],
1088                              $img['height'],
1089                              $img['cache']);
1090    }
1091
1092    /**
1093     * _getMediaLinkConf is a helperfunction to internalmedia() and externalmedia()
1094     * which returns a basic link to a media.
1095     *
1096     * @author Pierre Spring <pierre.spring@liip.ch>
1097     * @param string $src
1098     * @param string $title
1099     * @param string $align
1100     * @param string $width
1101     * @param string $height
1102     * @param string $cache
1103     * @param string $render
1104     * @access protected
1105     * @return array
1106     */
1107    function _getMediaLinkConf($src, $title, $align, $width, $height, $cache, $render)
1108    {
1109        global $conf;
1110
1111        $link = array();
1112        $link['class']  = 'media';
1113        $link['style']  = '';
1114        $link['pre']    = '';
1115        $link['suf']    = '';
1116        $link['more']   = '';
1117        $link['target'] = $conf['target']['media'];
1118        $link['title']  = $this->_xmlEntities($src);
1119        $link['name']   = $this->_media($src, $title, $align, $width, $height, $cache, $render);
1120
1121        return $link;
1122    }
1123
1124
1125}
1126
1127//Setup VIM: ex: et ts=4 enc=utf-8 :
1128