xref: /dokuwiki/inc/template.php (revision 6d861d1222d72bacbb7723f9df05548c76cca967) 
1<?php
2/**
3 * DokuWiki template functions
4 *
5 * @license    GPL 2 (http://www.gnu.org/licenses/gpl.html)
6 * @author     Andreas Gohr <andi@splitbrain.org>
7 */
8
9  if(!defined('DOKU_INC')) define('DOKU_INC',realpath(dirname(__FILE__).'/../').'/');
10  require_once(DOKU_INC.'conf/dokuwiki.php');
11
12/**
13 * Wrapper around htmlspecialchars()
14 *
15 * @author Andreas Gohr <andi@splitbrain.org>
16 * @see    htmlspecialchars()
17 */
18function hsc($string){
19  return htmlspecialchars($string);
20}
21
22/**
23 * print a newline terminated string
24 *
25 * You can give an indention as optional parameter
26 *
27 * @author Andreas Gohr <andi@splitbrain.org>
28 */
29function ptln($string,$intend=0){
30  for($i=0; $i<$intend; $i++) print ' ';
31  print"$string\n";
32}
33
34/**
35 * Print the content
36 *
37 * This function is used for printing all the usual content
38 * (defined by the global $ACT var) by calling the appropriate
39 * outputfunction(s) from html.php
40 *
41 * Everything that doesn't use the default template isn't
42 * handled by this function. ACL stuff is not done either.
43 *
44 * @author Andreas Gohr <andi@splitbrain.org>
45 */
46function tpl_content(){
47  global $ACT;
48  global $TEXT;
49  global $PRE;
50  global $SUF;
51  global $SUM;
52  global $IDX;
53
54  switch($ACT){
55    case 'show':
56      html_show();
57      break;
58    case 'preview':
59      html_edit($TEXT);
60      html_show($TEXT);
61      break;
62    case 'edit':
63      html_edit();
64      break;
65    case 'wordblock':
66      html_edit($TEXT,'wordblock');
67      break;
68    case 'search':
69      html_search();
70      break;
71    case 'revisions':
72      html_revisions();
73      break;
74    case 'diff':
75      html_diff();
76      break;
77    case 'recent':
78      $first = is_numeric($_REQUEST['first']) ? intval($_REQUEST['first']) : 0;
79      html_recent($first);
80      break;
81    case 'index':
82      html_index($IDX); #FIXME can this be pulled from globals? is it sanitized correctly?
83      break;
84    case 'backlink':
85      html_backlinks();
86      break;
87    case 'conflict':
88      html_conflict(con($PRE,$TEXT,$SUF),$SUM);
89      html_diff(con($PRE,$TEXT,$SUF),false);
90      break;
91    case 'locked':
92      html_locked();
93      break;
94    case 'login':
95      html_login();
96      break;
97    case 'register':
98      html_register();
99      break;
100    case 'denied':
101      print p_locale_xhtml('denied');
102			break;
103    case 'admin':
104      tpl_admin();
105      break;
106    default:
107			msg("Failed to handle command: ".hsc($ACT),-1);
108  }
109}
110
111/**
112 * Handle the admin page contents
113 *
114 * @author Andreas Gohr <andi@splitbrain.org>
115 */
116function tpl_admin(){
117  switch($_REQUEST['page']){
118		case 'acl':
119			admin_acl_html();
120			break;
121    default:
122			html_admin();
123	}
124}
125
126/**
127 * Print the correct HTML meta headers
128 *
129 * This has to go into the head section of your template.
130 *
131 * @author Andreas Gohr <andi@splitbrain.org>
132 */
133function tpl_metaheaders(){
134  global $ID;
135  global $INFO;
136  global $ACT;
137  global $lang;
138  global $conf;
139  $it=2;
140
141  // the usual stuff
142  ptln('<meta name="generator" content="DokuWiki '.getVersion().'" />',$it);
143  ptln('<link rel="start" href="'.DOKU_BASE.'" />',$it);
144  ptln('<link rel="contents" href="'.wl($ID,'do=index').'" title="'.$lang['index'].'" />',$it);
145  ptln('<link rel="alternate" type="application/rss+xml" title="Recent Changes" href="'.DOKU_BASE.'feed.php" />',$it);
146  ptln('<link rel="alternate" type="application/rss+xml" title="Current Namespace" href="'.DOKU_BASE.'feed.php?mode=list&amp;ns='.$INFO['namespace'].'" />',$it);
147  ptln('<link rel="alternate" type="text/html" title="Plain HTML" href="'.wl($ID,'do=export_html').'" />',$it);
148  ptln('<link rel="alternate" type="text/plain" title="Wiki Markup" href="'.wl($ID, 'do=export_raw').'" />',$it);
149  ptln('<link rel="stylesheet" media="screen" type="text/css" href="'.DOKU_BASE.'lib/styles/style.css" />',$it);
150
151  // setup robot tags apropriate for different modes
152  if( ($ACT=='show' || $ACT=='export_html') && !$REV){
153    if($INFO['exists']){
154      ptln('<meta name="date" content="'.date('Y-m-d\TH:i:sO',$INFO['lastmod']).'" />',$it);
155      //delay indexing:
156      if((time() - $INFO['lastmod']) >= $conf['indexdelay']){
157        ptln('<meta name="robots" content="index,follow" />',$it);
158      }else{
159        ptln('<meta name="robots" content="noindex,nofollow" />',$it);
160      }
161    }else{
162      ptln('<meta name="robots" content="noindex,follow" />',$it);
163    }
164  }else{
165    ptln('<meta name="robots" content="noindex,nofollow" />',$it);
166  }
167
168  // include some JavaScript language strings
169  ptln('<script language="javascript" type="text/javascript" charset="utf-8">',$it);
170  ptln("  var alertText   = '".$lang['qb_alert']."'",$it);
171  ptln("  var notSavedYet = '".$lang['notsavedyet']."'",$it);
172  ptln("  var DOKU_BASE   = '".DOKU_BASE."'",$it);
173  ptln('</script>',$it);
174
175  // load the default JavaScript files
176  ptln('<script language="javascript" type="text/javascript" charset="utf-8" src="'.
177       DOKU_BASE.'lib/scripts/script.js"></script>',$it);
178  ptln('<script language="javascript" type="text/javascript" charset="utf-8" src="'.
179       DOKU_BASE.'lib/scripts/tw-sack.js"></script>',$it);
180  ptln('<script language="javascript" type="text/javascript" charset="utf-8" src="'.
181       DOKU_BASE.'lib/scripts/ajax.js"></script>',$it);
182
183  // load spellchecker script if wanted
184  if($conf['spellchecker'] && ($ACT=='edit' || $ACT=='preview')){
185    ptln('<script language="javascript" type="text/javascript" charset="utf-8" src="'.
186       DOKU_BASE.'lib/scripts/spellcheck.js"></script>',$it);
187  }
188
189  //FIXME include some default CSS ? IE FIX?
190}
191
192/**
193 * Print a link
194 *
195 * Just builds a link but adds additional JavaScript needed for
196 * the unsaved data check needed in the edit form.
197 *
198 * @author Andreas Gohr <andi@splitbrain.org>
199 */
200function tpl_link($url,$name,$more=''){
201  print '<a href="'.$url.'" onclick="return svchk()" onkeypress="return svchk()"';
202  if ($more) print ' '.$more;
203  print ">$name</a>";
204}
205
206/**
207 * Prints a link to a WikiPage
208 *
209 * Wrapper around html_wikilink
210 *
211 * @author Andreas Gohr <andi@splitbrain.org>
212 */
213function tpl_pagelink($id,$name=NULL){
214  print html_wikilink($id,$name);
215}
216
217/**
218 * get the parent page
219 *
220 * Tries to find out which page is parent.
221 * returns false if none is available
222 *
223 * @author Matthias Grimm <matthiasgrimm@users.sourceforge.net>
224 */
225function tpl_getparent($ID){
226  global $conf;
227
228  if ($ID != $conf['start']) {
229    $idparts = explode(':', $ID);
230    $pn = array_pop($idparts);    // get the page name
231
232    for ($n=0; $n < 2; $n++) {
233      if (count($idparts) == 0) {
234        $ID = $conf['start'];     // go to topmost page
235        break;
236      }else{
237        $ns = array_pop($idparts);     // get the last part of namespace
238        if ($pn != $ns) {                 // are we already home?
239          array_push($idparts, $ns, $ns); // no, then add a page with same name
240          $ID = implode (':', $idparts); // as the namespace and recombine $ID
241          break;
242        }
243      }
244    }
245
246    if (@file_exists(wikiFN($ID))) {
247      return $ID;
248    }
249  }
250  return false;
251}
252
253/**
254 * Print one of the buttons
255 *
256 * Available Buttons are
257 *
258 *  edit    - edit/create/show button
259 *  history - old revisions
260 *  recent  - recent changes
261 *  login    - login/logout button - if ACL enabled
262 *  index     - The index
263 *  admin      - admin page - if enough rights
264 *  top         - a back to top button
265 *  back        - a back to parent button - if available
266 *  backtomedia - returns to the mediafile upload dialog
267 *                after references have been displayed
268 *
269 * @author Andreas Gohr <andi@splitbrain.org>
270 * @author Matthias Grimm <matthiasgrimm@users.sourceforge.net>
271 */
272function tpl_button($type){
273  global $ID;
274  global $NS;
275  global $INFO;
276  global $conf;
277
278  switch($type){
279    case 'edit':
280      print html_editbutton();
281      break;
282    case 'history':
283      print html_btn('revs',$ID,'o',array('do' => 'revisions'));
284      break;
285    case 'recent':
286      print html_btn('recent','','r',array('do' => 'recent'));
287      break;
288    case 'index':
289      print html_btn('index',$ID,'x',array('do' => 'index'));
290      break;
291    case 'back':
292      if ($ID = tpl_getparent($ID)) {
293        print html_btn('back',$ID,'b',array('do' => 'show'));
294      }
295      break;
296    case 'top':
297      print html_topbtn();
298      break;
299    case 'login':
300      if($conf['useacl']){
301        if($_SERVER['REMOTE_USER']){
302          print html_btn('logout',$ID,'',array('do' => 'logout',));
303        }else{
304          print html_btn('login',$ID,'',array('do' => 'login'));
305        }
306      }
307      break;
308    case 'admin':
309      if($INFO['perm'] == AUTH_ADMIN)
310        print html_btn('admin',$ID,'',array('do' => 'admin'));
311      break;
312    case 'backtomedia':
313      print html_backtomedia_button(array('ns' => $NS),'b');
314      break;
315		default:
316			print '[unknown button type]';
317  }
318}
319
320/**
321 * Like the action buttons but links
322 *
323 * Available links are
324 *
325 *  edit    - edit/create/show button
326 *  history - old revisions
327 *  recent  - recent changes
328 *  login   - login/logout button - if ACL enabled
329 *  index   - The index
330 *  admin   - admin page - if enough rights
331 *  top     - a back to top button
332 *  back    - a back to parent button - if available
333 *
334 * @author Andreas Gohr <andi@splitbrain.org>
335 * @author Matthias Grimm <matthiasgrimm@users.sourceforge.net>
336 * @see    tpl_button
337 */
338function tpl_actionlink($type,$pre='',$suf=''){
339  global $ID;
340  global $INFO;
341  global $REV;
342  global $ACT;
343  global $conf;
344  global $lang;
345
346  switch($type){
347    case 'edit':
348      #most complicated type - we need to decide on current action
349      if($ACT == 'show' || $ACT == 'search'){
350        if($INFO['writable']){
351          if($INFO['exists']){
352            tpl_link(wl($ID,'do=edit&amp;rev='.$REV),
353                     $pre.$lang['btn_edit'].$suf,
354                     'class="action" accesskey="e" rel="nofollow"');
355          }else{
356            tpl_link(wl($ID,'do=edit&amp;rev='.$REV),
357                     $pre.$lang['btn_create'].$suf,
358                     'class="action" accesskey="e" rel="nofollow"');
359          }
360        }else{
361          tpl_link(wl($ID,'do=edit&amp;rev='.$REV),
362                   $pre.$lang['btn_source'].$suf,
363                   'class="action" accesskey="v" rel="nofollow"');
364        }
365      }else{
366          tpl_link(wl($ID,'do=show'),
367                   $pre.$lang['btn_show'].$suf,
368                   'class="action" accesskey="v" rel="nofollow"');
369      }
370      break;
371    case 'history':
372      tpl_link(wl($ID,'do=revisions'),$pre.$lang['btn_revs'].$suf,'class="action" accesskey="o"');
373      break;
374    case 'recent':
375      tpl_link(wl($ID,'do=recent'),$pre.$lang['btn_recent'].$suf,'class="action" accesskey="r"');
376      break;
377    case 'index':
378      tpl_link(wl($ID,'do=index'),$pre.$lang['btn_index'].$suf,'class="action" accesskey="x"');
379      break;
380    case 'top':
381      print '<a href="#top" class="action" accesskey="x">'.$pre.$lang['btn_top'].$suf.'</a>';
382      break;
383    case 'back':
384      if ($ID = tpl_getparent($ID)) {
385        tpl_link(wl($ID,'do=show'),$pre.$lang['btn_back'].$suf,'class="action" accesskey="b"');
386      }
387      break;
388    case 'login':
389      if($conf['useacl']){
390        if($_SERVER['REMOTE_USER']){
391          tpl_link(wl($ID,'do=logout'),$pre.$lang['btn_logout'].$suf,'class="action"');
392        }else{
393          tpl_link(wl($ID,'do=login'),$pre.$lang['btn_login'].$suf,'class="action"');
394        }
395      }
396      break;
397    case 'admin':
398      if($INFO['perm'] == AUTH_ADMIN)
399        tpl_link(wl($ID,'do=admin'),$pre.$lang['btn_admin'].$suf,'class="action"');
400      break;
401    default:
402      print '[unknown link type]';
403  }
404}
405
406/**
407 * Print the search form
408 *
409 * @author Andreas Gohr <andi@splitbrain.org>
410 */
411function tpl_searchform(){
412  global $lang;
413  global $ACT;
414
415  print '<form action="'.wl().'" accept-charset="utf-8" class="search" name="search" onsubmit="return svchk()">';
416  print '<input type="hidden" name="do" value="search" />';
417  print '<input type="text" ';
418
419  if ($ACT == 'search')
420    print 'value="'.$_REQUEST['id'].'" '; /* keep search input as long as user stays on search page */
421
422  print 'id="qsearch_in" accesskey="f" name="id" class="edit" onkeyup="ajax_qsearch.call(\'qsearch_in\',\'qsearch_out\')" />';
423  print '<input type="submit" value="'.$lang['btn_search'].'" class="button" />';
424  print '<div id="qsearch_out" class="ajax_qsearch" onclick="this.style.display=\'none\'"></div>';
425  print '</form>';
426}
427
428/**
429 * Print the breadcrumbs trace
430 *
431 * @author Andreas Gohr <andi@splitbrain.org>
432 */
433function tpl_breadcrumbs(){
434  global $lang;
435  global $conf;
436
437  //check if enabled
438  if(!$conf['breadcrumbs']) return;
439
440  $crumbs = breadcrumbs(); //setup crumb trace
441
442  //reverse crumborder in right-to-left mode
443  if($lang['direction'] == 'rtl') $crumbs = array_reverse($crumbs,true);
444
445  //render crumbs, highlight the last one
446  print $lang['breadcrumb'].':';
447  $last = count($crumbs);
448  $i = 0;
449  foreach ($crumbs as $id => $name){
450    $i++;
451    print ' <span class="bcsep">&raquo;</span> ';
452    if ($i == $last) print '<span class="curid">';
453    tpl_link(wl($id),$name,'class="breadcrumbs" title="'.$id.'"');
454    if ($i == $last) print '</span>';
455  }
456}
457
458/**
459 * Hierarchical breadcrumbs
460 *
461 * This code was suggested as replacement for the usual breadcrumbs
462 * trail in the Wiki and was modified by me.
463 * It only makes sense with a deep site structure.
464 *
465 * @author Andreas Gohr <andi@splitbrain.org>
466 * @link   http://wiki.splitbrain.org/wiki:tipsandtricks:hierarchicalbreadcrumbs
467 * @todo   May behave starngely in RTL languages
468 */
469function tpl_youarehere(){
470  global $conf;
471  global $ID;
472  global $lang;
473
474
475  $parts     = explode(':', $ID);
476
477  print $lang['breadcrumb'].': ';
478
479  //always print the startpage
480  if( $a_part[0] != $conf['start'] )
481    tpl_link(wl($conf['start']),$conf['start'],'title="'.$conf['start'].'"');
482
483  $page = '';
484  foreach ($parts as $part){
485	  print ' &raquo; ';
486    $page .= $part;
487
488    if(file_exists(wikiFN($page))){
489      tpl_link(wl($page),$part,'title="'.$page.'"');
490    }else{
491      print $page;
492    }
493
494    $page .= ':';
495  }
496}
497
498/**
499 * Print info if the user is logged in
500 * and show full name in that case
501 *
502 * Could be enhanced with a profile link in future?
503 *
504 * @author Andreas Gohr <andi@splitbrain.org>
505 */
506function tpl_userinfo(){
507  global $lang;
508  global $INFO;
509  if($_SERVER['REMOTE_USER'])
510    print $lang['loggedinas'].': '.$INFO['userinfo']['name'];
511}
512
513/**
514 * Print some info about the current page
515 *
516 * @author Andreas Gohr <andi@splitbrain.org>
517 */
518function tpl_pageinfo(){
519  global $conf;
520  global $lang;
521  global $INFO;
522  global $REV;
523
524  // prepare date and path
525  $fn = $INFO['filepath'];
526  if(!$conf['fullpath']){
527    if($REV){
528      $fn = str_replace(realpath($conf['olddir']).DIRECTORY_SEPARATOR,'',$fn);
529    }else{
530      $fn = str_replace(realpath($conf['datadir']).DIRECTORY_SEPARATOR,'',$fn);
531    }
532  }
533  $fn = utf8_decodeFN($fn);
534  $date = date($conf['dformat'],$INFO['lastmod']);
535
536  // print it
537  if($INFO['exists']){
538    print $fn;
539    print ' &middot; ';
540    print $lang['lastmod'];
541    print ': ';
542    print $date;
543    if($INFO['editor']){
544      print ' '.$lang['by'].' ';
545      print $INFO['editor'];
546    }
547    if($INFO['locked']){
548      print ' &middot; ';
549      print $lang['lockedby'];
550      print ': ';
551      print $INFO['locked'];
552    }
553  }
554}
555
556/**
557 * Print a list of namespaces containing media files
558 *
559 * @author Andreas Gohr <andi@splitbrain.org>
560 */
561function tpl_medianamespaces(){
562	global $conf;
563
564  $data = array();
565  search($data,$conf['mediadir'],'search_namespaces',array());
566  print html_buildlist($data,'idx',media_html_list_namespaces);
567}
568
569/**
570 * Print a list of mediafiles in the current namespace
571 *
572 * @author Andreas Gohr <andi@splitbrain.org>
573 */
574function tpl_mediafilelist(){
575  global $conf;
576  global $lang;
577  global $NS;
578  global $AUTH;
579  $dir = utf8_encodeFN(str_replace(':','/',$NS));
580
581  $data = array();
582  search($data,$conf['mediadir'],'search_media',array(),$dir);
583
584  if(!count($data)){
585    ptln('<div class="nothing">'.$lang['nothingfound'].'<div>');
586    return;
587  }
588
589  ptln('<ul>',2);
590  foreach($data as $item){
591    ptln('<li>',4);
592    ptln('<a href="javascript:mediaSelect(\''.$item['id'].'\')">'.
593         utf8_decodeFN($item['file']).
594         '</a>',6);
595
596    //prepare deletion button
597    if($AUTH >= AUTH_DELETE){
598      $ask  = $lang['del_confirm'].'\\n';
599      $ask .= $item['id'];
600
601      $del = '<a href="'.DOKU_BASE.'lib/exe/media.php?delete='.urlencode($item['id']).'" '.
602             'onclick="return confirm(\''.$ask.'\')" onkeypress="return confirm(\''.$ask.'\')">'.
603             '<img src="'.DOKU_BASE.'lib/images/del.png" alt="'.$lang['btn_delete'].'" '.
604             'align="bottom" title="'.$lang['btn_delete'].'" /></a>';
605    }else{
606      $del = '';
607    }
608
609    if($item['isimg']){
610      $w = $item['info'][0];
611      $h = $item['info'][1];
612
613      ptln('('.$w.'&#215;'.$h.' '.filesize_h($item['size']).')',6);
614      ptln($del.'<br />',6);
615      ptln('<div class="meta">',6);
616      ptln('<a href="javascript:mediaSelect(\''.$item['id'].'\')">');
617
618      if($w>120){
619        print '<img src="'.DOKU_BASE.'lib/exe/fetch.php?w=120&amp;media='.urlencode($item['id']).'" width="120" class="thumb" />';
620      }else{
621        print '<img src="'.DOKU_BASE.'lib/exe/fetch.php?media='.urlencode($item['id']).'" width="'.$w.'" height="'.$h.'" class="thumb" />';
622      }
623      print '</a>';
624
625      //read EXIF/IPTC data
626      $meta = new JpegMeta(mediaFN($item['id']));
627      $t = $meta->getField('IPTC.Headline');
628      if($t) print '<b>'.$t.'</b><br />';
629
630      $t = $meta->getField(array('IPTC.Caption','EXIF.UserComment','EXIF.TIFFImageDescription','EXIF.TIFFUserComment'));
631      if($t) print $t.'<br />';
632
633      $t = $meta->getField(array('IPTC.Keywords','IPTC.Category'));
634      if($t) print '<i>'.$t.'</i><br />';
635
636      ptln('</div>',6);
637    }else{
638      ptln ('('.filesize_h($item['size']).')',6);
639      ptln($del,6);
640    }
641    ptln('</li>',4);
642  }
643  ptln('</ul>',2);
644}
645
646/**
647 * show references to a media file
648 * References uses the same visual as search results and share
649 * their CSS tags except pagenames won't be links.
650 *
651 * @author Matthias Grimm <matthiasgrimm@users.sourceforge.net>
652 */
653function tpl_showreferences(&$data){
654  global $lang;
655
656  $hidden=0; //count of hits without read permission
657
658  if(count($data)){
659    usort($data,'sort_search_fulltext');
660    foreach($data as $row){
661      if(auth_quickaclcheck($row['id']) >= AUTH_READ){
662        print '<div class="search_result">';
663        print '<span class="mediaref_ref">'.$row['id'].'</span>';
664        print ': <span class="search_cnt">'.$row['count'].' '.$lang['hits'].'</span><br />';
665        print '<div class="search_snippet">'.$row['snippet'].'</div>';
666        print '</div>';
667      }else
668        $hidden++;
669    }
670    if ($hidden){
671      print '<div class="mediaref_hidden">'.$lang['ref_hidden'].'</div>';
672    }
673  }
674}
675
676/**
677 * Print the media upload form if permissions are correct
678 *
679 * @author Andreas Gohr <andi@splitbrain.org>
680 */
681function tpl_mediauploadform(){
682  global $NS;
683  global $UPLOADOK;
684  global $AUTH;
685  global $lang;
686
687  if(!$UPLOADOK) return;
688
689  ptln('<form action="'.DOKU_BASE.'lib/exe/media.php" name="upload"'.
690       ' method="post" enctype="multipart/form-data">',2);
691  ptln($lang['txt_upload'].':<br />',4);
692  ptln('<input type="file" name="upload" class="edit" onchange="suggestWikiname();" />',4);
693  ptln('<input type="hidden" name="ns" value="'.hsc($NS).'" /><br />',4);
694  ptln($lang['txt_filename'].'<br />',4);
695  ptln('<input type="text" name="id" class="edit" />',4);
696  ptln('<input type="submit" class="button" value="'.$lang['btn_upload'].'" accesskey="s" />',4);
697  if($AUTH >= AUTH_DELETE){
698    ptln('<label for="ow" class="simple"><input type="checkbox" name="ow" value="1" id="ow">'.$lang['txt_overwrt'].'</label>',4);
699  }
700  ptln('</form>',2);
701}
702
703/**
704 * Prints the name of the given page (current one if none given).
705 *
706 * If useheading is enabled this will use the first headline else
707 * the given ID is printed.
708 *
709 * @author Andreas Gohr <andi@splitbrain.org>
710 */
711function tpl_pagetitle($id=null){
712  global $conf;
713  if(is_null($id)){
714    global $ID;
715    $id = $ID;
716  }
717
718  $name = $id;
719  if ($conf['useheading']) {
720    $title = p_get_first_heading($id);
721    if ($title) $name = $title;
722  }
723  print hsc($name);
724}
725
726/**
727 * Returns the requested EXIF/IPTC tag from the current image
728 *
729 * If $tags is an array all given tags are tried until a
730 * value is found. If no value is found $alt is returned.
731 *
732 * Which texts are known is defined in the functions _exifTagNames
733 * and _iptcTagNames() in inc/jpeg.php (You need to prepend IPTC
734 * to the names of the latter one)
735 *
736 * Only allowed in: detail.php
737 *
738 * @author Andreas Gohr <andi@splitbrain.org>
739 */
740function tpl_img_getTag($tags,$alt=''){
741  // Init Exif Reader
742  global $SRC;
743  static $meta = null;
744  if(is_null($meta)) $meta = new JpegMeta($SRC);
745  if($meta === false) return $alt;
746  $info = $meta->getField($tags);
747  if($info == false) return $alt;
748  return $info;
749}
750
751/**
752 * Prints the image with a link to the full sized version
753 *
754 * Only allowed in: detail.php
755 */
756function tpl_img($maxwidth=900,$maxheight=700){
757  global $IMG;
758  $w = tpl_img_getTag('File.Width');
759  $h = tpl_img_getTag('File.Height');
760
761  //resize to given max values
762  $ratio = 0;
763  if($w > $h){
764    if($w > $maxwidth){
765      $ratio = $maxwidth/$w;
766    }elseif($h > $maxheight){
767      $ratio = $maxheight/$h;
768    }
769  }else{
770    if($h > $maxheight){
771      $ratio = $maxheight/$h;
772    }elseif($w > $maxwidth){
773      $ratio = $maxwidth/$w;
774    }
775  }
776  if($ratio){
777    $w = floor($ratio*$w);
778    $h = floor($ratio*$h);
779  }
780
781  //prepare URL
782  $p = array();
783  $p['cache'] = $_REQUEST['cache'];
784  $p['media'] = $IMG;
785  $p = buildURLparams($p);
786  $url=DOKU_BASE.'lib/exe/fetch.php?'.$p;
787
788  //prepare attributes
789  $alt=tpl_img_getTag('Simple.Title');
790  $p = array();
791  if($w) $p['width']  = $w;
792  if($h) $p['height'] = $h;
793         $p['class']  = 'img_detail';
794  if($alt){
795    $p['alt']   = $alt;
796    $p['title'] = $alt;
797  }else{
798    $p['alt'] = '';
799  }
800  $p = buildAttributes($p);
801
802  print '<a href="'.$url.'">';
803  print '<img src="'.$url.'&amp;w='.$w.'&amp;h='.$w.'" '.$p.'/>';
804  print '</a>';
805}
806
807//Setup VIM: ex: et ts=2 enc=utf-8 :
808