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template.php
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template.php
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<?php
/**
* DokuWiki template functions
*
* @license GPL 2 (http://www.gnu.org/licenses/gpl.html)
* @author Andreas Gohr <andi@splitbrain.org>
*/
if(!defined('DOKU_INC')) die('meh.');
/**
* Returns the path to the given template, uses
* default one if the custom version doesn't exist.
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function template($tpl){
global $conf;
if(@is_readable(DOKU_INC.'lib/tpl/'.$conf['template'].'/'.$tpl))
return DOKU_INC.'lib/tpl/'.$conf['template'].'/'.$tpl;
return DOKU_INC.'lib/tpl/default/'.$tpl;
}
/**
* Convenience function to access template dir from local FS
*
* This replaces the deprecated DOKU_TPLINC constant
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function tpl_incdir(){
global $conf;
return DOKU_INC.'lib/tpl/'.$conf['template'].'/';
}
/**
* Convenience function to access template dir from web
*
* This replaces the deprecated DOKU_TPL constant
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function tpl_basedir(){
global $conf;
return DOKU_BASE.'lib/tpl/'.$conf['template'].'/';
}
/**
* Print the content
*
* This function is used for printing all the usual content
* (defined by the global $ACT var) by calling the appropriate
* outputfunction(s) from html.php
*
* Everything that doesn't use the main template file isn't
* handled by this function. ACL stuff is not done here either.
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function tpl_content($prependTOC=true) {
global $ACT;
global $INFO;
$INFO['prependTOC'] = $prependTOC;
ob_start();
trigger_event('TPL_ACT_RENDER',$ACT,'tpl_content_core');
$html_output = ob_get_clean();
trigger_event('TPL_CONTENT_DISPLAY',$html_output,'ptln');
return !empty($html_output);
}
function tpl_content_core(){
global $ACT;
global $TEXT;
global $PRE;
global $SUF;
global $SUM;
global $IDX;
switch($ACT){
case 'show':
html_show();
break;
case 'locked':
html_locked();
case 'edit':
case 'recover':
html_edit();
break;
case 'preview':
html_edit();
html_show($TEXT);
break;
case 'draft':
html_draft();
break;
case 'search':
html_search();
break;
case 'revisions':
$first = isset($_REQUEST['first']) ? intval($_REQUEST['first']) : 0;
html_revisions($first);
break;
case 'diff':
html_diff();
break;
case 'recent':
if (is_array($_REQUEST['first'])) {
$_REQUEST['first'] = array_keys($_REQUEST['first']);
$_REQUEST['first'] = $_REQUEST['first'][0];
}
$first = is_numeric($_REQUEST['first']) ? intval($_REQUEST['first']) : 0;
$show_changes = $_REQUEST['show_changes'];
html_recent($first, $show_changes);
break;
case 'index':
html_index($IDX); #FIXME can this be pulled from globals? is it sanitized correctly?
break;
case 'backlink':
html_backlinks();
break;
case 'conflict':
html_conflict(con($PRE,$TEXT,$SUF),$SUM);
html_diff(con($PRE,$TEXT,$SUF),false);
break;
case 'login':
html_login();
break;
case 'register':
html_register();
break;
case 'resendpwd':
html_resendpwd();
break;
case 'denied':
print p_locale_xhtml('denied');
break;
case 'profile' :
html_updateprofile();
break;
case 'admin':
tpl_admin();
break;
case 'subscribe':
tpl_subscribe();
break;
case 'media':
tpl_media();
break;
default:
$evt = new Doku_Event('TPL_ACT_UNKNOWN',$ACT);
if ($evt->advise_before())
msg("Failed to handle command: ".hsc($ACT),-1);
$evt->advise_after();
unset($evt);
return false;
}
return true;
}
/**
* Places the TOC where the function is called
*
* If you use this you most probably want to call tpl_content with
* a false argument
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function tpl_toc($return=false){
global $TOC;
global $ACT;
global $ID;
global $REV;
global $INFO;
global $conf;
$toc = array();
if(is_array($TOC)){
// if a TOC was prepared in global scope, always use it
$toc = $TOC;
}elseif(($ACT == 'show' || substr($ACT,0,6) == 'export') && !$REV && $INFO['exists']){
// get TOC from metadata, render if neccessary
$meta = p_get_metadata($ID, false, METADATA_RENDER_USING_CACHE);
if(isset($meta['internal']['toc'])){
$tocok = $meta['internal']['toc'];
}else{
$tocok = true;
}
$toc = $meta['description']['tableofcontents'];
if(!$tocok || !is_array($toc) || !$conf['tocminheads'] || count($toc) < $conf['tocminheads']){
$toc = array();
}
}elseif($ACT == 'admin'){
// try to load admin plugin TOC FIXME: duplicates code from tpl_admin
$plugin = null;
if (!empty($_REQUEST['page'])) {
$pluginlist = plugin_list('admin');
if (in_array($_REQUEST['page'], $pluginlist)) {
// attempt to load the plugin
$plugin =& plugin_load('admin',$_REQUEST['page']);
}
}
if ( ($plugin !== null) &&
(!$plugin->forAdminOnly() || $INFO['isadmin']) ){
$toc = $plugin->getTOC();
$TOC = $toc; // avoid later rebuild
}
}
trigger_event('TPL_TOC_RENDER', $toc, null, false);
$html = html_TOC($toc);
if($return) return $html;
echo $html;
}
/**
* Handle the admin page contents
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function tpl_admin(){
global $INFO;
global $TOC;
$plugin = null;
if (!empty($_REQUEST['page'])) {
$pluginlist = plugin_list('admin');
if (in_array($_REQUEST['page'], $pluginlist)) {
// attempt to load the plugin
$plugin =& plugin_load('admin',$_REQUEST['page']);
}
}
if ($plugin !== null){
if(!is_array($TOC)) $TOC = $plugin->getTOC(); //if TOC wasn't requested yet
if($INFO['prependTOC']) tpl_toc();
$plugin->html();
}else{
html_admin();
}
return true;
}
/**
* Print the correct HTML meta headers
*
* This has to go into the head section of your template.
*
* @triggers TPL_METAHEADER_OUTPUT
* @param boolean $alt Should feeds and alternative format links be added?
* @author Andreas Gohr <andi@splitbrain.org>
*/
function tpl_metaheaders($alt=true){
global $ID;
global $REV;
global $INFO;
global $JSINFO;
global $ACT;
global $QUERY;
global $lang;
global $conf;
$it=2;
// prepare the head array
$head = array();
// prepare seed for js and css
$tseed = 0;
$depends = getConfigFiles('main');
foreach($depends as $f) {
$time = @filemtime($f);
if($time > $tseed) $tseed = $time;
}
// the usual stuff
$head['meta'][] = array( 'name'=>'generator', 'content'=>'DokuWiki');
$head['link'][] = array( 'rel'=>'search', 'type'=>'application/opensearchdescription+xml',
'href'=>DOKU_BASE.'lib/exe/opensearch.php', 'title'=>$conf['title'] );
$head['link'][] = array( 'rel'=>'start', 'href'=>DOKU_BASE );
if(actionOK('index')){
$head['link'][] = array( 'rel'=>'contents', 'href'=> wl($ID,'do=index',false,'&'),
'title'=>$lang['btn_index'] );
}
if($alt){
$head['link'][] = array( 'rel'=>'alternate', 'type'=>'application/rss+xml',
'title'=>'Recent Changes', 'href'=>DOKU_BASE.'feed.php');
$head['link'][] = array( 'rel'=>'alternate', 'type'=>'application/rss+xml',
'title'=>'Current Namespace',
'href'=>DOKU_BASE.'feed.php?mode=list&ns='.$INFO['namespace']);
if(($ACT == 'show' || $ACT == 'search') && $INFO['writable']){
$head['link'][] = array( 'rel'=>'edit',
'title'=>$lang['btn_edit'],
'href'=> wl($ID,'do=edit',false,'&'));
}
if($ACT == 'search'){
$head['link'][] = array( 'rel'=>'alternate', 'type'=>'application/rss+xml',
'title'=>'Search Result',
'href'=>DOKU_BASE.'feed.php?mode=search&q='.$QUERY);
}
if(actionOK('export_xhtml')){
$head['link'][] = array( 'rel'=>'alternate', 'type'=>'text/html', 'title'=>'Plain HTML',
'href'=>exportlink($ID, 'xhtml', '', false, '&'));
}
if(actionOK('export_raw')){
$head['link'][] = array( 'rel'=>'alternate', 'type'=>'text/plain', 'title'=>'Wiki Markup',
'href'=>exportlink($ID, 'raw', '', false, '&'));
}
}
// setup robot tags apropriate for different modes
if( ($ACT=='show' || $ACT=='export_xhtml') && !$REV){
if($INFO['exists']){
//delay indexing:
if((time() - $INFO['lastmod']) >= $conf['indexdelay']){
$head['meta'][] = array( 'name'=>'robots', 'content'=>'index,follow');
}else{
$head['meta'][] = array( 'name'=>'robots', 'content'=>'noindex,nofollow');
}
$head['link'][] = array( 'rel'=>'canonical', 'href'=>wl($ID,'',true,'&') );
}else{
$head['meta'][] = array( 'name'=>'robots', 'content'=>'noindex,follow');
}
}elseif(defined('DOKU_MEDIADETAIL')){
$head['meta'][] = array( 'name'=>'robots', 'content'=>'index,follow');
}else{
$head['meta'][] = array( 'name'=>'robots', 'content'=>'noindex,nofollow');
}
// set metadata
if($ACT == 'show' || $ACT=='export_xhtml'){
// date of modification
if($REV){
$head['meta'][] = array( 'name'=>'date', 'content'=>date('Y-m-d\TH:i:sO',$REV));
}else{
$head['meta'][] = array( 'name'=>'date', 'content'=>date('Y-m-d\TH:i:sO',$INFO['lastmod']));
}
// keywords (explicit or implicit)
if(!empty($INFO['meta']['subject'])){
$head['meta'][] = array( 'name'=>'keywords', 'content'=>join(',',$INFO['meta']['subject']));
}else{
$head['meta'][] = array( 'name'=>'keywords', 'content'=>str_replace(':',',',$ID));
}
}
// load stylesheets
$head['link'][] = array('rel'=>'stylesheet', 'type'=>'text/css',
'href'=>DOKU_BASE.'lib/exe/css.php?t='.$conf['template'].'&tseed='.$tseed);
// make $INFO and other vars available to JavaScripts
$json = new JSON();
$script = "var NS='".$INFO['namespace']."';";
if($conf['useacl'] && $_SERVER['REMOTE_USER']){
$script .= "var SIG='".toolbar_signature()."';";
}
$script .= 'var JSINFO = '.$json->encode($JSINFO).';';
$head['script'][] = array( 'type'=>'text/javascript', '_data'=> $script);
// load external javascript
$head['script'][] = array( 'type'=>'text/javascript', 'charset'=>'utf-8', '_data'=>'',
'src'=>DOKU_BASE.'lib/exe/js.php'.'?tseed='.$tseed);
// trigger event here
trigger_event('TPL_METAHEADER_OUTPUT',$head,'_tpl_metaheaders_action',true);
return true;
}
/**
* prints the array build by tpl_metaheaders
*
* $data is an array of different header tags. Each tag can have multiple
* instances. Attributes are given as key value pairs. Values will be HTML
* encoded automatically so they should be provided as is in the $data array.
*
* For tags having a body attribute specify the the body data in the special
* attribute '_data'. This field will NOT BE ESCAPED automatically.
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function _tpl_metaheaders_action($data){
foreach($data as $tag => $inst){
foreach($inst as $attr){
echo '<',$tag,' ',buildAttributes($attr);
if(isset($attr['_data']) || $tag == 'script'){
if($tag == 'script' && $attr['_data'])
$attr['_data'] = "<!--//--><![CDATA[//><!--\n".
$attr['_data'].
"\n//--><!]]>";
echo '>',$attr['_data'],'</',$tag,'>';
}else{
echo '/>';
}
echo "\n";
}
}
}
/**
* Print a link
*
* Just builds a link.
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function tpl_link($url,$name,$more='',$return=false){
$out = '<a href="'.$url.'" ';
if ($more) $out .= ' '.$more;
$out .= ">$name</a>";
if ($return) return $out;
print $out;
return true;
}
/**
* Prints a link to a WikiPage
*
* Wrapper around html_wikilink
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function tpl_pagelink($id,$name=null){
print html_wikilink($id,$name);
return true;
}
/**
* get the parent page
*
* Tries to find out which page is parent.
* returns false if none is available
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function tpl_getparent($id){
global $conf;
$parent = getNS($id).':';
resolve_pageid('',$parent,$exists);
if($parent == $id) {
$pos = strrpos (getNS($id),':');
$parent = substr($parent,0,$pos).':';
resolve_pageid('',$parent,$exists);
if($parent == $id) return false;
}
return $parent;
}
/**
* Print one of the buttons
*
* @author Adrian Lang <mail@adrianlang.de>
* @see tpl_get_action
*/
function tpl_button($type,$return=false){
$data = tpl_get_action($type);
if ($data === false) {
return false;
} elseif (!is_array($data)) {
$out = sprintf($data, 'button');
} else {
extract($data);
if ($id === '#dokuwiki__top') {
$out = html_topbtn();
} else {
$out = html_btn($type, $id, $accesskey, $params, $method);
}
}
if ($return) return $out;
echo $out;
return true;
}
/**
* Like the action buttons but links
*
* @author Adrian Lang <mail@adrianlang.de>
* @see tpl_get_action
*/
function tpl_actionlink($type,$pre='',$suf='',$inner='',$return=false){
global $lang;
$data = tpl_get_action($type);
if ($data === false) {
return false;
} elseif (!is_array($data)) {
$out = sprintf($data, 'link');
} else {
extract($data);
if (strpos($id, '#') === 0) {
$linktarget = $id;
} else {
$linktarget = wl($id, $params);
}
$caption = $lang['btn_' . $type];
$akey = $addTitle = '';
if($accesskey){
$akey = 'accesskey="'.$accesskey.'" ';
$addTitle = ' ['.strtoupper($accesskey).']';
}
$out = tpl_link($linktarget, $pre.(($inner)?$inner:$caption).$suf,
'class="action ' . $type . '" ' .
$akey . 'rel="nofollow" ' .
'title="' . hsc($caption).$addTitle . '"', 1);
}
if ($return) return $out;
echo $out;
return true;
}
/**
* Check the actions and get data for buttons and links
*
* Available actions are
*
* edit - edit/create/show/draft
* history - old revisions
* recent - recent changes
* login - login/logout - if ACL enabled
* profile - user profile (if logged in)
* index - The index
* admin - admin page - if enough rights
* top - back to top
* back - back to parent - if available
* backlink - links to the list of backlinks
* subscribe/subscription- subscribe/unsubscribe
*
* @author Andreas Gohr <andi@splitbrain.org>
* @author Matthias Grimm <matthiasgrimm@users.sourceforge.net>
* @author Adrian Lang <mail@adrianlang.de>
*/
function tpl_get_action($type) {
global $ID;
global $INFO;
global $REV;
global $ACT;
global $conf;
global $auth;
// check disabled actions and fix the badly named ones
if($type == 'history') $type='revisions';
if(!actionOK($type)) return false;
$accesskey = null;
$id = $ID;
$method = 'get';
$params = array('do' => $type);
switch($type){
case 'edit':
// most complicated type - we need to decide on current action
if($ACT == 'show' || $ACT == 'search'){
$method = 'post';
if($INFO['writable']){
$accesskey = 'e';
if(!empty($INFO['draft'])) {
$type = 'draft';
$params['do'] = 'draft';
} else {
$params['rev'] = $REV;
if(!$INFO['exists']){
$type = 'create';
}
}
}else{
if(!actionOK('source')) return false; //pseudo action
$params['rev'] = $REV;
$type = 'source';
$accesskey = 'v';
}
}else{
$params = array();
$type = 'show';
$accesskey = 'v';
}
break;
case 'revisions':
$type = 'revs';
$accesskey = 'o';
break;
case 'recent':
$accesskey = 'r';
break;
case 'index':
$accesskey = 'x';
break;
case 'top':
$accesskey = 'x';
$params = array();
$id = '#dokuwiki__top';
break;
case 'back':
$parent = tpl_getparent($ID);
if (!$parent) {
return false;
}
$id = $parent;
$params = array();
$accesskey = 'b';
break;
case 'login':
$params['sectok'] = getSecurityToken();
if(isset($_SERVER['REMOTE_USER'])){
if (!actionOK('logout')) {
return false;
}
$params['do'] = 'logout';
$type = 'logout';
}
break;
case 'register':
if($_SERVER['REMOTE_USER']){
return false;
}
break;
case 'resendpwd':
if($_SERVER['REMOTE_USER']){
return false;
}
break;
case 'admin':
if(!$INFO['ismanager']){
return false;
}
break;
case 'revert':
if(!$INFO['ismanager'] || !$REV || !$INFO['writable']) {
return false;
}
$params['rev'] = $REV;
$params['sectok'] = getSecurityToken();
break;
case 'subscription':
$type = 'subscribe';
$params['do'] = 'subscribe';
case 'subscribe':
if(!$_SERVER['REMOTE_USER']){
return false;
}
break;
case 'backlink':
break;
case 'profile':
if(!isset($_SERVER['REMOTE_USER'])){
return false;
}
break;
case 'media':
break;
default:
return '[unknown %s type]';
break;
}
return compact('accesskey', 'type', 'id', 'method', 'params');
}
/**
* Wrapper around tpl_button() and tpl_actionlink()
*
* @author Anika Henke <anika@selfthinker.org>
*/
function tpl_action($type,$link=0,$wrapper=false,$return=false,$pre='',$suf='',$inner='') {
$out = '';
if ($link) $out .= tpl_actionlink($type,$pre,$suf,$inner,1);
else $out .= tpl_button($type,1);
if ($out && $wrapper) $out = "<$wrapper>$out</$wrapper>";
if ($return) return $out;
print $out;
return $out ? true : false;
}
/**
* Print the search form
*
* If the first parameter is given a div with the ID 'qsearch_out' will
* be added which instructs the ajax pagequicksearch to kick in and place
* its output into this div. The second parameter controls the propritary
* attribute autocomplete. If set to false this attribute will be set with an
* value of "off" to instruct the browser to disable it's own built in
* autocompletion feature (MSIE and Firefox)
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function tpl_searchform($ajax=true,$autocomplete=true){
global $lang;
global $ACT;
global $QUERY;
// don't print the search form if search action has been disabled
if (!actionOk('search')) return false;
print '<form action="'.wl().'" accept-charset="utf-8" class="search" id="dw__search" method="get"><div class="no">';
print '<input type="hidden" name="do" value="search" />';
print '<input type="text" ';
if($ACT == 'search') print 'value="'.htmlspecialchars($QUERY).'" ';
if(!$autocomplete) print 'autocomplete="off" ';
print 'id="qsearch__in" accesskey="f" name="id" class="edit" title="[F]" />';
print '<input type="submit" value="'.$lang['btn_search'].'" class="button" title="'.$lang['btn_search'].'" />';
if($ajax) print '<div id="qsearch__out" class="ajax_qsearch JSpopup"></div>';
print '</div></form>';
return true;
}
/**
* Print the breadcrumbs trace
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function tpl_breadcrumbs($sep='•'){
global $lang;
global $conf;
//check if enabled
if(!$conf['breadcrumbs']) return false;
$crumbs = breadcrumbs(); //setup crumb trace
//reverse crumborder in right-to-left mode, add RLM character to fix heb/eng display mixups
if($lang['direction'] == 'rtl') {
$crumbs = array_reverse($crumbs,true);
$crumbs_sep = ' ‏<span class="bcsep">'.$sep.'</span>‏ ';
} else {
$crumbs_sep = ' <span class="bcsep">'.$sep.'</span> ';
}
//render crumbs, highlight the last one
print '<span class="bchead">'.$lang['breadcrumb'].':</span>';
$last = count($crumbs);
$i = 0;
foreach ($crumbs as $id => $name){
$i++;
echo $crumbs_sep;
if ($i == $last) print '<span class="curid">';
tpl_link(wl($id),hsc($name),'class="breadcrumbs" title="'.$id.'"');
if ($i == $last) print '</span>';
}
return true;
}
/**
* Hierarchical breadcrumbs
*
* This code was suggested as replacement for the usual breadcrumbs.
* It only makes sense with a deep site structure.
*
* @author Andreas Gohr <andi@splitbrain.org>
* @author Nigel McNie <oracle.shinoda@gmail.com>
* @author Sean Coates <sean@caedmon.net>
* @author <fredrik@averpil.com>
* @todo May behave strangely in RTL languages
*/
function tpl_youarehere($sep=' » '){
global $conf;
global $ID;
global $lang;
// check if enabled
if(!$conf['youarehere']) return false;
$parts = explode(':', $ID);
$count = count($parts);
echo '<span class="bchead">'.$lang['youarehere'].': </span>';
// always print the startpage
tpl_pagelink(':'.$conf['start']);
// print intermediate namespace links
$part = '';
for($i=0; $i<$count - 1; $i++){
$part .= $parts[$i].':';
$page = $part;
if ($page == $conf['start']) continue; // Skip startpage
// output
echo $sep;
tpl_pagelink($page);
}
// print current page, skipping start page, skipping for namespace index
resolve_pageid('',$page,$exists);
if(isset($page) && $page==$part.$parts[$i]) return;
$page = $part.$parts[$i];
if($page == $conf['start']) return;
echo $sep;
tpl_pagelink($page);
return true;
}
/**
* Print info if the user is logged in
* and show full name in that case
*
* Could be enhanced with a profile link in future?
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function tpl_userinfo(){
global $lang;
global $INFO;
if(isset($_SERVER['REMOTE_USER'])){
print $lang['loggedinas'].': '.hsc($INFO['userinfo']['name']).' ('.hsc($_SERVER['REMOTE_USER']).')';
return true;
}
return false;
}
/**
* Print some info about the current page
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function tpl_pageinfo($ret=false){
global $conf;
global $lang;
global $INFO;
global $ID;
// return if we are not allowed to view the page
if (!auth_quickaclcheck($ID)) { return false; }
// prepare date and path
$fn = $INFO['filepath'];
if(!$conf['fullpath']){
if($INFO['rev']){
$fn = str_replace(fullpath($conf['olddir']).'/','',$fn);
}else{
$fn = str_replace(fullpath($conf['datadir']).'/','',$fn);
}
}
$fn = utf8_decodeFN($fn);
$date = dformat($INFO['lastmod']);
// print it
if($INFO['exists']){
$out = '';
$out .= $fn;
$out .= ' · ';
$out .= $lang['lastmod'];
$out .= ': ';
$out .= $date;
if($INFO['editor']){
$out .= ' '.$lang['by'].' ';
$out .= editorinfo($INFO['editor']);
}else{
$out .= ' ('.$lang['external_edit'].')';
}
if($INFO['locked']){
$out .= ' · ';
$out .= $lang['lockedby'];
$out .= ': ';
$out .= editorinfo($INFO['locked']);
}
if($ret){
return $out;
}else{
echo $out;
return true;
}
}
return false;
}
/**
* Prints or returns the name of the given page (current one if none given).
*
* If useheading is enabled this will use the first headline else
* the given ID is used.
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function tpl_pagetitle($id=null, $ret=false){
global $conf;
if(is_null($id)){
global $ID;
$id = $ID;
}
$name = $id;
if (useHeading('navigation')) {
$title = p_get_first_heading($id);
if ($title) $name = $title;
}
if ($ret) {
return hsc($name);
} else {
print hsc($name);
return true;
}
}
/**
* Returns the requested EXIF/IPTC tag from the current image
*
* If $tags is an array all given tags are tried until a
* value is found. If no value is found $alt is returned.
*
* Which texts are known is defined in the functions _exifTagNames
* and _iptcTagNames() in inc/jpeg.php (You need to prepend IPTC
* to the names of the latter one)
*
* Only allowed in: detail.php
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function tpl_img_getTag($tags,$alt='',$src=null){
// Init Exif Reader
global $SRC;
if(is_null($src)) $src = $SRC;
static $meta = null;
if(is_null($meta)) $meta = new JpegMeta($src);
if($meta === false) return $alt;
$info = $meta->getField($tags);
if($info == false) return $alt;
return $info;
}
/**
* Prints the image with a link to the full sized version
*
* Only allowed in: detail.php
*
* @param $maxwidth int - maximal width of the image
* @param $maxheight int - maximal height of the image
* @param $link bool - link to the orginal size?
* @param $params array - additional image attributes
*/
function tpl_img($maxwidth=0,$maxheight=0,$link=true,$params=null){
global $IMG;
$w = tpl_img_getTag('File.Width');
$h = tpl_img_getTag('File.Height');
//resize to given max values
$ratio = 1;
if($w >= $h){
if($maxwidth && $w >= $maxwidth){
$ratio = $maxwidth/$w;
}elseif($maxheight && $h > $maxheight){
$ratio = $maxheight/$h;
}
}else{
if($maxheight && $h >= $maxheight){
$ratio = $maxheight/$h;
}elseif($maxwidth && $w > $maxwidth){
$ratio = $maxwidth/$w;
}
}
if($ratio){
$w = floor($ratio*$w);
$h = floor($ratio*$h);
}
//prepare URLs
$url=ml($IMG,array('cache'=>$_REQUEST['cache']),true,'&');
$src=ml($IMG,array('cache'=>$_REQUEST['cache'],'w'=>$w,'h'=>$h),true,'&');
//prepare attributes
$alt=tpl_img_getTag('Simple.Title');
if(is_null($params)){
$p = array();
}else{
$p = $params;
}
if($w) $p['width'] = $w;
if($h) $p['height'] = $h;
$p['class'] = 'img_detail';
if($alt){
$p['alt'] = $alt;
$p['title'] = $alt;
}else{
$p['alt'] = '';
}
$p['src'] = $src;
$data = array('url'=>($link?$url:null), 'params'=>$p);
return trigger_event('TPL_IMG_DISPLAY',$data,'_tpl_img_action',true);
}
/**
* Default action for TPL_IMG_DISPLAY
*/
function _tpl_img_action($data, $param=null) {
global $lang;
$p = buildAttributes($data['params']);
if($data['url']) print '<a href="'.hsc($data['url']).'" title="'.$lang['mediaview'].'">';
print '<img '.$p.'/>';
if($data['url']) print '</a>';
return true;