'') ? MakePageName($pagename, $pn) : $pagename;
return (boolean)WatchPageVars($pn, "status");
}
function WatchPageVars($pagename, $var) {
global $Author, $AuthorPage, $WatchlistTrailFmt, $AuthorWatchlist;
if(!$Author) {
switch ($var) {
case 'action' : return 'watch';
case 'status' : return '0';
case 'text' : return XL('Watch');
}
return ''; # case 'trail' or some error
}
if(! isset($AuthorWatchlist)) {
$AuthorListPage = FmtPageName($WatchlistTrailFmt, $AuthorPage);
$AuthorWatchlist = array('~'=>$AuthorListPage);
$trail = ReadTrail($AuthorListPage, $AuthorListPage);
foreach($trail as $ar) $AuthorWatchlist[ $ar['pagename'] ] = 1;
}
switch ($var) {
case 'trail' : return $AuthorWatchlist['~'];
case 'action' : return (@$AuthorWatchlist[$pagename])? 'unwatch' : 'watch';
case 'status' : return (@$AuthorWatchlist[$pagename])? '1' : '0';
case 'text' : return (@$AuthorWatchlist[$pagename])? XL('Unwatch') : XL('Watch');
}
return ''; # shouldn't happen
}
function HandleWatchUnwatch($pagename, $auth="edit") {
global $Author, $AuthorPage, $AuthorRequiredFmt, $AuthorPromptFmt, $action, $ChangeSummary, $Now,
$WatchlistTrailFmt, $WatchlistRedirectFmt, $WatchRedirectFunction, $EnablePost, $MessagesFmt,
$WatchMultiplePages;
$goto = (@$_REQUEST['goto']>'') ? MakePageName($pagename, @$_REQUEST['goto']) : '';
$action = strtolower($action);
# we need an author name
if(!$Author) {
SDV($AuthorPromptFmt,array(&$PageStartFmt, $AuthorRequiredFmt,
@"
", &$PageEndFmt));
PrintFmt($pagename,$AuthorPromptFmt);
exit;
}
$AuthorListPage = FmtPageName($WatchlistTrailFmt, $AuthorPage);
if(!$goto) $goto = FmtPageName($WatchlistRedirectFmt, $AuthorPage);
# we only watch pages if we can edit our watchlist trail
$list = $new = RetrieveAuthPage($AuthorListPage, $auth, true);
$trail = ReadTrail($AuthorListPage, $AuthorListPage);
foreach(array_reverse($WatchMultiplePages) as $pn) {
$new['text'] = WatchUnwatchSinglePage(FmtPageName($pn, $pagename), $action, $new['text'], $trail);
}
if($new['text']!=$list['text']) {
$ChangeSummary = $_POST['csum'] = $new['csum'] = $new["csum:$Now"] = "$action $pagename";
UpdatePage($AuthorListPage, $list, $new);
if(!$EnablePost) Abort(implode('', $MessagesFmt) . " $[Watchlist not saved]");
}
$WatchRedirectFunction($goto);
}
function WatchUnwatchSinglePage($pagename, $action, $text, $trail) {
$found = '';
foreach($trail as $ar) {
if($ar['pagename']!=$pagename) continue;
$found = preg_quote($ar['markup'].$ar['detail'], '/');
break;
}
if($action=='watch') {
if(! $found) {
$line = "\n* [[{$pagename}]] ([[{$pagename}?action=unwatch | $[Unwatch] ]])";
$anchor = "[[#AddToWatchlist]]";
$tparts = explode($anchor, $text, 2);
array_splice($tparts, 1, 0, "$anchor$line");
$text = implode('', $tparts);
}
# else it already is in the list
}
elseif($action=='unwatch') {
if($found) {
$text = preg_replace("/(^|\n)\\s*([#*:]+)\\s*$found(\n|$)/", "\n", $text);
}
# else it already is NOT in the list
}
return $text;
}