friendica/mod/help.php
Andrej Stieben db949bb802 Updated modules to allow for partial overrides without errors
Only define functions if they have not been defined before, e.g. in themes. This makes it possible to override parts of a module and still use the other functions.
2016-02-05 21:52:39 +01:00

103 lines
2.4 KiB
PHP

<?php
require_once('library/markdown.php');
if (!function_exists('load_doc_file')) {
function load_doc_file($s) {
global $lang;
if (!isset($lang))
$lang = 'en';
$b = basename($s);
$d = dirname($s);
if (file_exists("$d/$lang/$b"))
return file_get_contents("$d/$lang/$b");
if (file_exists($s))
return file_get_contents($s);
return '';
}
}
if(! function_exists('help_content')) {
function help_content(&$a) {
nav_set_selected('help');
global $lang;
$text = '';
if ($a->argc > 1) {
$path = '';
// looping through the argv keys bigger than 0 to build
// a path relative to /help
for($x = 1; $x < argc(); $x ++) {
if(strlen($path))
$path .= '/';
$path .= argv($x);
}
$title = basename($path);
$filename = $path;
$text = load_doc_file('doc/' . $path . '.md');
$a->page['title'] = t('Help:') . ' ' . str_replace('-', ' ', notags($title));
}
$home = load_doc_file('doc/Home.md');
if (!$text) {
$text = $home;
$filename = "Home";
$a->page['title'] = t('Help');
} else {
$a->page['aside'] = Markdown($home);
}
if (!strlen($text)) {
header($_SERVER["SERVER_PROTOCOL"] . ' 404 ' . t('Not Found'));
$tpl = get_markup_template("404.tpl");
return replace_macros($tpl, array(
'$message' => t('Page not found.')
));
}
$html = Markdown($text);
if ($filename !== "Home") {
// create TOC but not for home
$lines = explode("\n", $html);
$toc="<style>aside ul {padding-left: 1em;}</style><h2>TOC</h2><ul id='toc'>";
$lastlevel=1;
$idnum = array(0,0,0,0,0,0,0);
foreach($lines as &$line){
if (substr($line,0,2)=="<h") {
$level = substr($line,2,1);
if ($level!="r") {
$level = intval($level);
if ($level<$lastlevel) {
for($k=$level;$k<$lastlevel; $k++) $toc.="</ul>";
for($k=$level+1;$k<count($idnum);$k++) $idnum[$k]=0;
}
if ($level>$lastlevel) $toc.="<ul>";
$idnum[$level]++;
$id = implode("_", array_slice($idnum,1,$level));
$href = $a->get_baseurl()."/help/{$filename}#{$id}";
$toc .= "<li><a href='{$href}'>".strip_tags($line)."</a></li>";
$line = "<a name='{$id}'></a>".$line;
$lastlevel = $level;
}
}
}
for($k=1;$k<$lastlevel; $k++) $toc.="</ul>";
$html = implode("\n",$lines);
$a->page['aside'] = $toc.$a->page['aside'];
}
$html = "
<style>
.md_warning {
padding: 1em; border: #ff0000 solid 2px;
background-color: #f9a3a3; color: #ffffff;
}
</style>".$html;
return $html;
}
}