includes/Linker.php

   1 <?php
   2 /**
   3  * Split off some of the internal bits from Skin.php. These functions are used
   4  * for primarily page content: links, embedded images, table of contents. Links
   5  * are also used in the skin. For the moment, Skin is a descendent class of
   6  * Linker.  In the future, it should probably be further split so that every
   7  * other bit of the wiki doesn't have to go loading up Skin to get at it.
   8  *
   9  * @ingroup Skins
  10  */
  11 class Linker {
  12
  13         /**
  14          * Flags for userToolLinks()
  15          */
  16         const TOOL_LINKS_NOBLOCK = 1;
  17
  18         function __construct() {}
  19
  20         /**
  21          * @deprecated
  22          */
  23         function postParseLinkColour( $s = null ) {
  24                 wfDeprecated( __METHOD__ );
  25                 return null;
  26         }
  27
  28         /**
  29          * Get the appropriate HTML attributes to add to the "a" element of an ex-
  30          * ternal link, as created by [wikisyntax].
  31          *
  32          * @param string $title  The (unescaped) title text for the link
  33          * @param string $unused Unused
  34          * @param string $class  The contents of the class attribute; if an empty
  35          *   string is passed, which is the default value, defaults to 'external'.
  36          */
  37         function getExternalLinkAttributes( $title, $unused = null, $class='' ) {
  38                 return $this->getLinkAttributesInternal( $title, $class, 'external' );
  39         }
  40
  41         /**
  42          * Get the appropriate HTML attributes to add to the "a" element of an in-
  43          * terwiki link.
  44          *
  45          * @param string $title  The title text for the link, URL-encoded (???) but
  46          *   not HTML-escaped
  47          * @param string $unused Unused
  48          * @param string $class  The contents of the class attribute; if an empty
  49          *   string is passed, which is the default value, defaults to 'external'.
  50          */
  51         function getInterwikiLinkAttributes( $title, $unused = null, $class='' ) {
  52                 global $wgContLang;
  53
  54                 # FIXME: We have a whole bunch of handling here that doesn't happen in
  55                 # getExternalLinkAttributes, why?
  56                 $title = urldecode( $title );
  57                 $title = $wgContLang->checkTitleEncoding( $title );
  58                 $title = preg_replace( '/[\\x00-\\x1f]/', ' ', $title );
  59
  60                 return $this->getLinkAttributesInternal( $title, $class, 'external' );
  61         }
  62
  63         /**
  64          * Get the appropriate HTML attributes to add to the "a" element of an in-
  65          * ternal link.
  66          *
  67          * @param string $title  The title text for the link, URL-encoded (???) but
  68          *   not HTML-escaped
  69          * @param string $unused Unused
  70          * @param string $class  The contents of the class attribute, default none
  71          */
  72         function getInternalLinkAttributes( $title, $unused = null, $class='' ) {
  73                 $title = urldecode( $title );
  74                 $title = str_replace( '_', ' ', $title );
  75                 return $this->getLinkAttributesInternal( $title, $class );
  76         }
  77
  78         /**
  79          * Get the appropriate HTML attributes to add to the "a" element of an in-
  80          * ternal link, given the Title object for the page we want to link to.
  81          *
  82          * @param Title  $nt     The Title object
  83          * @param string $unused Unused
  84          * @param string $class  The contents of the class attribute, default none
  85          * @param mixed  $title  Optional (unescaped) string to use in the title
  86          *   attribute; if false, default to the name of the page we're linking to
  87          */
  88         function getInternalLinkAttributesObj( $nt, $unused = null, $class = '', $title = false ) {
  89                 if( $title === false ) {
  90                         $title = $nt->getPrefixedText();
  91                 }
  92                 return $this->getLinkAttributesInternal( $title, $class );
  93         }
  94
  95         /**
  96          * Common code for getLinkAttributesX functions
  97          */
  98         private function getLinkAttributesInternal( $title, $class, $classDefault = false ) {
  99                 $title = htmlspecialchars( $title );
 100                 if( $class === '' and $classDefault !== false ) {
 101                         # FIXME: Parameter defaults the hard way!  We should just have
 102                         # $class = 'external' or whatever as the default in the externally-
 103                         # exposed functions, not $class = ''.
 104                         $class = $classDefault;
 105                 }
 106                 $class = htmlspecialchars( $class );
 107                 $r = '';
 108                 if( $class !== '' ) {
 109                         $r .= " class=\"$class\"";
 110                 }
 111                 $r .= " title=\"$title\"";
 112                 return $r;
 113         }
 114
 115         /**
 116          * Return the CSS colour of a known link
 117          *
 118          * @param Title $t
 119          * @param integer $threshold user defined threshold
 120          * @return string CSS class
 121          */
 122         function getLinkColour( $t, $threshold ) {
 123                 $colour = '';
 124                 if ( $t->isRedirect() ) {
 125                         # Page is a redirect
 126                         $colour = 'mw-redirect';
 127                 } elseif ( $threshold > 0 && $t->getLength() < $threshold && MWNamespace::isContent( $t->getNamespace() ) ) {
 128                         # Page is a stub
 129                         $colour = 'stub';
 130                 }
 131                 return $colour;
 132         }
 133
 134         /**
 135          * This function returns an HTML link to the given target.  It serves a few
 136          * purposes:
 137          *   1) If $target is a Title, the correct URL to link to will be figured
 138          *      out automatically.
 139          *   2) It automatically adds the usual classes for various types of link
 140          *      targets: "new" for red links, "stub" for short articles, etc.
 141          *   3) It escapes all attribute values safely so there's no risk of XSS.
 142          *   4) It provides a default tooltip if the target is a Title (the page
 143          *      name of the target).
 144          * link() replaces the old functions in the makeLink() family.
 145          *
 146          * @param $target        Title  Can currently only be a Title, but this may
 147          *   change to support Images, literal URLs, etc.
 148          * @param $text          string The HTML contents of the <a> element, i.e.,
 149          *   the link text.  This is raw HTML and will not be escaped.  If null,
 150          *   defaults to the prefixed text of the Title; or if the Title is just a
 151          *   fragment, the contents of the fragment.
 152          * @param $query         array  The query string to append to the URL
 153          *   you're linking to, in key => value array form.  Query keys and values
 154          *   will be URL-encoded.
 155          * @param $customAttribs array  A key => value array of extra HTML attri-
 156          *   butes, such as title and class.  (href is ignored.)  Classes will be
 157          *   merged with the default classes, while other attributes will replace
 158          *   default attributes.  All passed attribute values will be HTML-escaped.
 159          *   A false attribute value means to suppress that attribute.
 160          * @param $options       mixed  String or array of strings:
 161          *     'known': Page is known to exist, so don't check if it does.
 162          *     'broken': Page is known not to exist, so don't check if it does.
 163          *     'noclasses': Don't add any classes automatically (includes "new",
 164          *       "stub", "mw-redirect").  Only use the class attribute provided, if
 165          *       any.
 166          * @return string HTML <a> attribute
 167          */
 168         public function link( $target, $text = null, $customAttribs = array(), $query = array(), $options = array() ) {
 169                 wfProfileIn( __METHOD__ );
 170                 if( !($target instanceof Title) ) {
 171                         throw new MWException( 'Linker::link passed invalid target' );
 172                 }
 173                 $options = (array)$options;
 174
 175                 # Normalize the Title if it's a special page
 176                 if( $target->getNamespace() == NS_SPECIAL ) {
 177                         list( $name, $subpage ) = SpecialPage::resolveAliasWithSubpage( $target->getDBkey() );
 178                         if( $name ) {
 179                                 $target = SpecialPage::getTitleFor( $name, $subpage );
 180                         }
 181                 }
 182
 183                 # If we don't know whether the page exists, let's find out.
 184                 if( !in_array( 'known', $options ) and !in_array( 'broken', $options ) ) {
 185                         if( $target->getNamespace() == NS_SPECIAL ) {
 186                                 if( SpecialPage::exists( $target->getDbKey() ) ) {
 187                                         $options []= 'known';
 188                                 } else {
 189                                         $options []= 'broken';
 190                                 }
 191                         } elseif( $target->isAlwaysKnown() or
 192                         ($target->getPrefixedText() == '' and $target->getFragment() != '')
 193                         or $target->exists() ) {
 194                                 $options []= 'known';
 195                         } else {
 196                                 # Either it exists
 197                                 $options []= 'broken';
 198                         }
 199                 }
 200
 201                 # Note: we want the href attribute first, for prettiness.
 202                 $attribs = array( 'href' => $this->linkUrl( $target, $query, $options ) );
 203                 $attribs = array_merge(
 204                         $attribs,
 205                         $this->linkAttribs( $target, $customAttribs, $options )
 206                 );
 207                 if( is_null( $text ) ) {
 208                         $text = $this->linkText( $target, $options );
 209                 }
 210
 211                 $ret = Xml::element( 'a', $attribs, $text, false );
 212
 213                 wfProfileOut( __METHOD__ );
 214                 return $ret;
 215         }
 216
 217         private function linkUrl( $target, $query, $options ) {
 218                 # If it's a broken link, add the appropriate query pieces.  This over-
 219                 # writes the default action!
 220                 if( in_array( 'broken', $options ) ) {
 221                         $query['action'] = 'edit';
 222                         $query['redlink'] = '1';
 223                 }
 224                 # A couple of things to be concerned about here.  First of all,
 225                 # getLocalURL() ignores fragments.  Second of all, if the Title is
 226                 # *only* a fragment, it returns something like "/".
 227                 if( $target->getFragment() === '' and $target->getPrefixedText() !== '' ) {
 228                         return $target->getLocalURL( $query );
 229                 }
 230                 if( $target->getPrefixedText() === '' ) {
 231                         # Just a fragment.  There had better be one, anyway, or this is a
 232                         # pretty silly Title.
 233                         return '#'.$target->getFragment();
 234                 }
 235                 # Then we must have a fragment *and* some Title text.
 236                 return $target->getLocalURL( $query ).'#'.$target->getFragment();
 237         }
 238
 239         private function linkAttribs( $target, $attribs, $options ) {
 240                 global $wgUser;
 241                 $defaults = array();
 242
 243                 # First get a default title attribute.
 244                 if( in_array( 'known', $options ) ) {
 245                         $defaults['title'] = $target->getPrefixedText();
 246                 } else {
 247                         $defaults['title'] = wfMsg( 'red-link-title', $target->getPrefixedText() );
 248                 }
 249
 250                 if( !in_array( 'noclasses', $options ) ) {
 251                         # Now build the classes.  This is the bulk of what we're doing.
 252                         $classes = array();
 253
 254                         if( in_array( 'broken', $options ) ) {
 255                                 $classes []= 'new';
 256                         }
 257
 258                         # Note that redirects never count as stubs here.
 259                         if ( $target->isRedirect() ) {
 260                                 $classes []= 'mw-redirect';
 261                         } elseif( $target->isContentPage() ) {
 262                                 $threshold = $wgUser->getOption( 'stubthreshold' );
 263                                 if( $threshold > 0 and $target->getLength() < $threshold ) {
 264                                         $classes []= 'stub';
 265                                 }
 266                         }
 267                         if( $classes != array() ) {
 268                                 $defaults['class'] = implode( ' ', $classes );
 269                         }
 270                 }
 271
 272                 # Finally, merge the custom attribs with the default ones, and iterate
 273                 # over that, deleting all "false" attributes.
 274                 $ret = array();
 275                 $merged = Sanitizer::mergeAttributes( $defaults, $attribs );
 276                 foreach( $merged as $key => $val ) {
 277                         # A false value suppresses the attribute, and we don't want the
 278                         # href attribute to be overridden.
 279                         if( $key != 'href' and $val !== false ) {
 280                                 $ret[$key] = $val;
 281                         }
 282                 }
 283                 return $ret;
 284         }
 285
 286         private function linkText( $target, $options ) {
 287                 # If the target is just a fragment, with no title, we return the frag-
 288                 # ment text.  Otherwise, we return the title text itself.
 289                 if( $target->getPrefixedText() === '' and $target->getFragment() !== '' ) {
 290                         return htmlspecialchars( $target->getFragment() );
 291                 }
 292                 return htmlspecialchars( $target->getPrefixedText() );
 293         }
 294
 295         /**
 296          * This function is a shortcut to makeLinkObj(Title::newFromText($title),...). Do not call
 297          * it if you already have a title object handy. See makeLinkObj for further documentation.
 298          *
 299          * @param $title String: the text of the title
 300          * @param $text  String: link text
 301          * @param $query String: optional query part
 302          * @param $trail String: optional trail. Alphabetic characters at the start of this string will
 303          *                      be included in the link text. Other characters will be appended after
 304          *                      the end of the link.
 305          */
 306         function makeLink( $title, $text = '', $query = '', $trail = '' ) {
 307                 wfProfileIn( __METHOD__ );
 308                 $nt = Title::newFromText( $title );
 309                 if ( $nt instanceof Title ) {
 310                         $result = $this->makeLinkObj( $nt, $text, $query, $trail );
 311                 } else {
 312                         wfDebug( 'Invalid title passed to Linker::makeLink(): "'.$title."\"\n" );
 313                         $result = $text == "" ? $title : $text;
 314                 }
 315
 316                 wfProfileOut( __METHOD__ );
 317                 return $result;
 318         }
 319
 320         /**
 321          * This function is a shortcut to makeKnownLinkObj(Title::newFromText($title),...). Do not call
 322          * it if you already have a title object handy. See makeKnownLinkObj for further documentation.
 323          *
 324          * @param $title String: the text of the title
 325          * @param $text  String: link text
 326          * @param $query String: optional query part
 327          * @param $trail String: optional trail. Alphabetic characters at the start of this string will
 328          *                      be included in the link text. Other characters will be appended after
 329          *                      the end of the link.
 330          */
 331         function makeKnownLink( $title, $text = '', $query = '', $trail = '', $prefix = '',$aprops = '') {
 332                 $nt = Title::newFromText( $title );
 333                 if ( $nt instanceof Title ) {
 334                         return $this->makeKnownLinkObj( $nt, $text, $query, $trail, $prefix , $aprops );
 335                 } else {
 336                         wfDebug( 'Invalid title passed to Linker::makeKnownLink(): "'.$title."\"\n" );
 337                         return $text == '' ? $title : $text;
 338                 }
 339         }
 340
 341         /**
 342          * This function is a shortcut to makeBrokenLinkObj(Title::newFromText($title),...). Do not call
 343          * it if you already have a title object handy. See makeBrokenLinkObj for further documentation.
 344          *
 345          * @param string $title The text of the title
 346          * @param string $text Link text
 347          * @param string $query Optional query part
 348          * @param string $trail Optional trail. Alphabetic characters at the start of this string will
 349          *                      be included in the link text. Other characters will be appended after
 350          *                      the end of the link.
 351          */
 352         function makeBrokenLink( $title, $text = '', $query = '', $trail = '' ) {
 353                 $nt = Title::newFromText( $title );
 354                 if ( $nt instanceof Title ) {
 355                         return $this->makeBrokenLinkObj( $nt, $text, $query, $trail );
 356                 } else {
 357                         wfDebug( 'Invalid title passed to Linker::makeBrokenLink(): "'.$title."\"\n" );
 358                         return $text == '' ? $title : $text;
 359                 }
 360         }
 361
 362         /**
 363          * @deprecated use makeColouredLinkObj
 364          *
 365          * This function is a shortcut to makeStubLinkObj(Title::newFromText($title),...). Do not call
 366          * it if you already have a title object handy. See makeStubLinkObj for further documentation.
 367          *
 368          * @param $title String: the text of the title
 369          * @param $text  String: link text
 370          * @param $query String: optional query part
 371          * @param $trail String: optional trail. Alphabetic characters at the start of this string will
 372          *                      be included in the link text. Other characters will be appended after
 373          *                      the end of the link.
 374          */
 375         function makeStubLink( $title, $text = '', $query = '', $trail = '' ) {
 376                 $nt = Title::newFromText( $title );
 377                 if ( $nt instanceof Title ) {
 378                         return $this->makeStubLinkObj( $nt, $text, $query, $trail );
 379                 } else {
 380                         wfDebug( 'Invalid title passed to Linker::makeStubLink(): "'.$title."\"\n" );
 381                         return $text == '' ? $title : $text;
 382                 }
 383         }
 384
 385         /**
 386          * Make a link for a title which may or may not be in the database. If you need to
 387          * call this lots of times, pre-fill the link cache with a LinkBatch, otherwise each
 388          * call to this will result in a DB query.
 389          *
 390          * @param $nt     Title: the title object to make the link from, e.g. from
 391          *                      Title::newFromText.
 392          * @param $text  String: link text
 393          * @param $query String: optional query part
 394          * @param $trail String: optional trail. Alphabetic characters at the start of this string will
 395          *                      be included in the link text. Other characters will be appended after
 396          *                      the end of the link.
 397          * @param $prefix String: optional prefix. As trail, only before instead of after.
 398          */
 399         function makeLinkObj( Title $nt, $text= '', $query = '', $trail = '', $prefix = '' ) {
 400                 global $wgUser;
 401                 wfProfileIn( __METHOD__ );
 402
 403                 if ( $nt->isExternal() ) {
 404                         $u = $nt->getFullURL();
 405                         $link = $nt->getPrefixedURL();
 406                         if ( '' == $text ) { $text = $nt->getPrefixedText(); }
 407                         $style = $this->getInterwikiLinkAttributes( $link, $text, 'extiw' );
 408
 409                         $inside = '';
 410                         if ( '' != $trail ) {
 411                                 $m = array();
 412                                 if ( preg_match( '/^([a-z]+)(.*)$$/sD', $trail, $m ) ) {
 413                                         $inside = $m[1];
 414                                         $trail = $m[2];
 415                                 }
 416                         }
 417                         $t = "<a href=\"{$u}\"{$style}>{$text}{$inside}</a>";
 418
 419                         wfProfileOut( __METHOD__ );
 420                         return $t;
 421                 } elseif ( $nt->isAlwaysKnown() ) {
 422                         # Image links, special page links and self-links with fragments are always known.
 423                         $retVal = $this->makeKnownLinkObj( $nt, $text, $query, $trail, $prefix );
 424                 } else {
 425                         wfProfileIn( __METHOD__.'-immediate' );
 426
 427                         # Handles links to special pages which do not exist in the database:
 428                         if( $nt->getNamespace() == NS_SPECIAL ) {
 429                                 if( SpecialPage::exists( $nt->getDBkey() ) ) {
 430                                         $retVal = $this->makeKnownLinkObj( $nt, $text, $query, $trail, $prefix );
 431                                 } else {
 432                                         $retVal = $this->makeBrokenLinkObj( $nt, $text, $query, $trail, $prefix );
 433                                 }
 434                                 wfProfileOut( __METHOD__.'-immediate' );
 435                                 wfProfileOut( __METHOD__ );
 436                                 return $retVal;
 437                         }
 438
 439                         # Work out link colour immediately
 440                         $aid = $nt->getArticleID() ;
 441                         if ( 0 == $aid ) {
 442                                 $retVal = $this->makeBrokenLinkObj( $nt, $text, $query, $trail, $prefix );
 443                         } else {
 444                                 $colour = '';
 445                                 if ( $nt->isContentPage() ) {
 446                                         $threshold = $wgUser->getOption('stubthreshold');
 447                                         $colour = $this->getLinkColour( $nt, $threshold );
 448                                 }
 449                                 $retVal = $this->makeColouredLinkObj( $nt, $colour, $text, $query, $trail, $prefix );
 450                         }
 451                         wfProfileOut( __METHOD__.'-immediate' );
 452                 }
 453                 wfProfileOut( __METHOD__ );
 454                 return $retVal;
 455         }
 456
 457         /**
 458          * Make a link for a title which definitely exists. This is faster than makeLinkObj because
 459          * it doesn't have to do a database query. It's also valid for interwiki titles and special
 460          * pages.
 461          *
 462          * @param $nt Title object of target page
 463          * @param $text   String: text to replace the title
 464          * @param $query  String: link target
 465          * @param $trail  String: text after link
 466          * @param $prefix String: text before link text
 467          * @param $aprops String: extra attributes to the a-element
 468          * @param $style  String: style to apply - if empty, use getInternalLinkAttributesObj instead
 469          * @return the a-element
 470          */
 471         function makeKnownLinkObj( Title $title, $text = '', $query = '', $trail = '', $prefix = '' , $aprops = '', $style = '' ) {
 472                 wfProfileIn( __METHOD__ );
 473
 474                 $nt = $this->normaliseSpecialPage( $title );
 475
 476                 $u = $nt->escapeLocalURL( $query );
 477                 if ( $nt->getFragment() != '' ) {
 478                         if( $nt->getPrefixedDbkey() == '' ) {
 479                                 $u = '';
 480                                 if ( '' == $text ) {
 481                                         $text = htmlspecialchars( $nt->getFragment() );
 482                                 }
 483                         }
 484                         $u .= $nt->getFragmentForURL();
 485                 }
 486                 if ( $text == '' ) {
 487                         $text = htmlspecialchars( $nt->getPrefixedText() );
 488                 }
 489                 if ( $style == '' ) {
 490                         $style = $this->getInternalLinkAttributesObj( $nt, $text );
 491                 }
 492
 493                 if ( $aprops !== '' ) $aprops = " $aprops";
 494
 495                 list( $inside, $trail ) = Linker::splitTrail( $trail );
 496                 $r = "<a href=\"{$u}\"{$style}{$aprops}>{$prefix}{$text}{$inside}</a>{$trail}";
 497                 wfProfileOut( __METHOD__ );
 498                 return $r;
 499         }
 500
 501         /**
 502          * Make a red link to the edit page of a given title.
 503          *
 504          * @param $nt Title object of the target page
 505          * @param $text  String: Link text
 506          * @param $query String: Optional query part
 507          * @param $trail String: Optional trail. Alphabetic characters at the start of this string will
 508          *                      be included in the link text. Other characters will be appended after
 509          *                      the end of the link.
 510          */
 511         function makeBrokenLinkObj( Title $title, $text = '', $query = '', $trail = '', $prefix = '' ) {
 512                 wfProfileIn( __METHOD__ );
 513
 514                 $nt = $this->normaliseSpecialPage( $title );
 515
 516                 if( $nt->getNamespace() == NS_SPECIAL ) {
 517                         $q = $query;
 518                 } else if ( '' == $query ) {
 519                         $q = 'action=edit&redlink=1';
 520                 } else {
 521                         $q = 'action=edit&redlink=1&'.$query;
 522                 }
 523                 $u = $nt->escapeLocalURL( $q );
 524
 525                 $titleText = $nt->getPrefixedText();
 526                 if ( '' == $text ) {
 527                         $text = htmlspecialchars( $titleText );
 528                 }
 529                 $titleAttr = wfMsg( 'red-link-title', $titleText );
 530                 $style = $this->getInternalLinkAttributesObj( $nt, $text, 'new', $titleAttr );
 531                 list( $inside, $trail ) = Linker::splitTrail( $trail );
 532
 533                 wfRunHooks( 'BrokenLink', array( &$this, $nt, $query, &$u, &$style, &$prefix, &$text, &$inside, &$trail ) );
 534                 $s = "<a href=\"{$u}\"{$style}>{$prefix}{$text}{$inside}</a>{$trail}";
 535
 536                 wfProfileOut( __METHOD__ );
 537                 return $s;
 538         }
 539
 540         /**
 541          * @deprecated use makeColouredLinkObj
 542          *
 543          * Make a brown link to a short article.
 544          *
 545          * @param $nt Title object of the target page
 546          * @param $text  String: link text
 547          * @param $query String: optional query part
 548          * @param $trail String: optional trail. Alphabetic characters at the start of this string will
 549          *                      be included in the link text. Other characters will be appended after
 550          *                      the end of the link.
 551          */
 552         function makeStubLinkObj( $nt, $text = '', $query = '', $trail = '', $prefix = '' ) {
 553                 wfDeprecated( __METHOD__ );
 554                 return $this->makeColouredLinkObj( $nt, 'stub', $text, $query, $trail, $prefix );
 555         }
 556
 557         /**
 558          * Make a coloured link.
 559          *
 560          * @param $nt Title object of the target page
 561          * @param $colour Integer: colour of the link
 562          * @param $text   String:  link text
 563          * @param $query  String:  optional query part
 564          * @param $trail  String:  optional trail. Alphabetic characters at the start of this string will
 565          *                      be included in the link text. Other characters will be appended after
 566          *                      the end of the link.
 567          */
 568         function makeColouredLinkObj( $nt, $colour, $text = '', $query = '', $trail = '', $prefix = '' ) {
 569                 if($colour != ''){
 570                         $style = $this->getInternalLinkAttributesObj( $nt, $text, $colour );
 571                 } else $style = '';
 572                 return $this->makeKnownLinkObj( $nt, $text, $query, $trail, $prefix, '', $style );
 573         }
 574
 575         /**
 576          * Generate either a normal exists-style link or a stub link, depending
 577          * on the given page size.
 578          *
 579          * @param $size Integer
 580          * @param $nt Title object.
 581          * @param $text String
 582          * @param $query String
 583          * @param $trail String
 584          * @param $prefix String
 585          * @return string HTML of link
 586          */
 587         function makeSizeLinkObj( $size, $nt, $text = '', $query = '', $trail = '', $prefix = '' ) {
 588                 global $wgUser;
 589                 $threshold = intval( $wgUser->getOption( 'stubthreshold' ) );
 590                 $colour = ( $size < $threshold ) ? 'stub' : '';
 591                 return $this->makeColouredLinkObj( $nt, $colour, $text, $query, $trail, $prefix );
 592         }
 593
 594         /**
 595          * Make appropriate markup for a link to the current article. This is currently rendered
 596          * as the bold link text. The calling sequence is the same as the other make*LinkObj functions,
 597          * despite $query not being used.
 598          */
 599         function makeSelfLinkObj( $nt, $text = '', $query = '', $trail = '', $prefix = '' ) {
 600                 if ( '' == $text ) {
 601                         $text = htmlspecialchars( $nt->getPrefixedText() );
 602                 }
 603                 list( $inside, $trail ) = Linker::splitTrail( $trail );
 604                 return "<strong class=\"selflink\">{$prefix}{$text}{$inside}</strong>{$trail}";
 605         }
 606
 607         function normaliseSpecialPage( Title $title ) {
 608                 if ( $title->getNamespace() == NS_SPECIAL ) {
 609                         list( $name, $subpage ) = SpecialPage::resolveAliasWithSubpage( $title->getDBkey() );
 610                         if ( !$name ) return $title;
 611                         return SpecialPage::getTitleFor( $name, $subpage );
 612                 } else {
 613                         return $title;
 614                 }
 615         }
 616
 617         /** @todo document */
 618         function fnamePart( $url ) {
 619                 $basename = strrchr( $url, '/' );
 620                 if ( false === $basename ) {
 621                         $basename = $url;
 622                 } else {
 623                         $basename = substr( $basename, 1 );
 624                 }
 625                 return $basename;
 626         }
 627
 628         /** Obsolete alias */
 629         function makeImage( $url, $alt = '' ) {
 630                 wfDeprecated( __METHOD__ );
 631                 return $this->makeExternalImage( $url, $alt );
 632         }
 633
 634         /** @todo document */
 635         function makeExternalImage( $url, $alt = '' ) {
 636                 if ( '' == $alt ) {
 637                         $alt = $this->fnamePart( $url );
 638                 }
 639                 $img = '';
 640                 $success = wfRunHooks('LinkerMakeExternalImage', array( &$url, &$alt, &$img ) );
 641                 if(!$success) {
 642                         wfDebug("Hook LinkerMakeExternalImage changed the output of external image with url {$url} and alt text {$alt} to {$img}", true);
 643                         return $img;
 644                 }
 645                 return Xml::element( 'img',
 646                         array(
 647                                 'src' => $url,
 648                                 'alt' => $alt ) );
 649         }
 650
 651         /**
 652          * Creates the HTML source for images
 653          * @deprecated use makeImageLink2
 654          *
 655          * @param object $title
 656          * @param string $label label text
 657          * @param string $alt alt text
 658          * @param string $align horizontal alignment: none, left, center, right)
 659          * @param array $handlerParams Parameters to be passed to the media handler
 660          * @param boolean $framed shows image in original size in a frame
 661          * @param boolean $thumb shows image as thumbnail in a frame
 662          * @param string $manualthumb image name for the manual thumbnail
 663          * @param string $valign vertical alignment: baseline, sub, super, top, text-top, middle, bottom, text-bottom
 664          * @param string $time, timestamp of the file, set as false for current
 665          * @return string
 666          */
 667         function makeImageLinkObj( $title, $label, $alt, $align = '', $handlerParams = array(), $framed = false,
 668           $thumb = false, $manualthumb = '', $valign = '', $time = false )
 669         {
 670                 $frameParams = array( 'alt' => $alt, 'caption' => $label );
 671                 if ( $align ) {
 672                         $frameParams['align'] = $align;
 673                 }
 674                 if ( $framed ) {
 675                         $frameParams['framed'] = true;
 676                 }
 677                 if ( $thumb ) {
 678                         $frameParams['thumbnail'] = true;
 679                 }
 680                 if ( $manualthumb ) {
 681                         $frameParams['manualthumb'] = $manualthumb;
 682                 }
 683                 if ( $valign ) {
 684                         $frameParams['valign'] = $valign;
 685                 }
 686                 $file = wfFindFile( $title, $time );
 687                 return $this->makeImageLink2( $title, $file, $frameParams, $handlerParams, $time );
 688         }
 689
 690         /**
 691          * Given parameters derived from [[Image:Foo|options...]], generate the
 692          * HTML that that syntax inserts in the page.
 693          *
 694          * @param Title $title Title object
 695          * @param File $file File object, or false if it doesn't exist
 696          *
 697          * @param array $frameParams Associative array of parameters external to the media handler.
 698          *     Boolean parameters are indicated by presence or absence, the value is arbitrary and
 699          *     will often be false.
 700          *          thumbnail       If present, downscale and frame
 701          *          manualthumb     Image name to use as a thumbnail, instead of automatic scaling
 702          *          framed          Shows image in original size in a frame
 703          *          frameless       Downscale but don't frame
 704          *          upright         If present, tweak default sizes for portrait orientation
 705          *          upright_factor  Fudge factor for "upright" tweak (default 0.75)
 706          *          border          If present, show a border around the image
 707          *          align           Horizontal alignment (left, right, center, none)
 708          *          valign          Vertical alignment (baseline, sub, super, top, text-top, middle,
 709          *                          bottom, text-bottom)
 710          *          alt             Alternate text for image (i.e. alt attribute). Plain text.
 711          *          caption         HTML for image caption.
 712          *
 713          * @param array $handlerParams Associative array of media handler parameters, to be passed
 714          *       to transform(). Typical keys are "width" and "page".
 715          * @param string $time, timestamp of the file, set as false for current
 716          * @param string $query, query params for desc url
 717          * @return string HTML for an image, with links, wrappers, etc.
 718          */
 719         function makeImageLink2( Title $title, $file, $frameParams = array(), $handlerParams = array(), $time = false, $query = "" ) {
 720                 $res = null;
 721                 if( !wfRunHooks( 'ImageBeforeProduceHTML', array( &$this, &$title,
 722                 &$file, &$frameParams, &$handlerParams, &$time, &$res ) ) ) {
 723                         return $res;
 724                 }
 725
 726                 global $wgContLang, $wgUser, $wgThumbLimits, $wgThumbUpright;
 727                 if ( $file && !$file->allowInlineDisplay() ) {
 728                         wfDebug( __METHOD__.': '.$title->getPrefixedDBkey()." does not allow inline display\n" );
 729                         return $this->link( $title );
 730                 }
 731
 732                 // Shortcuts
 733                 $fp =& $frameParams;
 734                 $hp =& $handlerParams;
 735
 736                 // Clean up parameters
 737                 $page = isset( $hp['page'] ) ? $hp['page'] : false;
 738                 if ( !isset( $fp['align'] ) ) $fp['align'] = '';
 739                 if ( !isset( $fp['alt'] ) ) $fp['alt'] = '';
 740
 741                 $prefix = $postfix = '';
 742
 743                 if ( 'center' == $fp['align'] )
 744                 {
 745                         $prefix  = '<div class="center">';
 746                         $postfix = '</div>';
 747                         $fp['align']   = 'none';
 748                 }
 749                 if ( $file && !isset( $hp['width'] ) ) {
 750                         $hp['width'] = $file->getWidth( $page );
 751
 752                         if( isset( $fp['thumbnail'] ) || isset( $fp['framed'] ) || isset( $fp['frameless'] ) || !$hp['width'] ) {
 753                                 $wopt = $wgUser->getOption( 'thumbsize' );
 754
 755                                 if( !isset( $wgThumbLimits[$wopt] ) ) {
 756                                          $wopt = User::getDefaultOption( 'thumbsize' );
 757                                 }
 758
 759                                 // Reduce width for upright images when parameter 'upright' is used
 760                                 if ( isset( $fp['upright'] ) && $fp['upright'] == 0 ) {
 761                                         $fp['upright'] = $wgThumbUpright;
 762                                 }
 763                                 // Use width which is smaller: real image width or user preference width
 764                                 // For caching health: If width scaled down due to upright parameter, round to full __0 pixel to avoid the creation of a lot of odd thumbs
 765                                 $prefWidth = isset( $fp['upright'] ) ?
 766                                         round( $wgThumbLimits[$wopt] * $fp['upright'], -1 ) :
 767                                         $wgThumbLimits[$wopt];
 768                                 if ( $hp['width'] <= 0 || $prefWidth < $hp['width'] ) {
 769                                         $hp['width'] = $prefWidth;
 770                                 }
 771                         }
 772                 }
 773
 774                 if ( isset( $fp['thumbnail'] ) || isset( $fp['manualthumb'] ) || isset( $fp['framed'] ) ) {
 775
 776                         # Create a thumbnail. Alignment depends on language
 777                         # writing direction, # right aligned for left-to-right-
 778                         # languages ("Western languages"), left-aligned
 779                         # for right-to-left-languages ("Semitic languages")
 780                         #
 781                         # If  thumbnail width has not been provided, it is set
 782                         # to the default user option as specified in Language*.php
 783                         if ( $fp['align'] == '' ) {
 784                                 $fp['align'] = $wgContLang->isRTL() ? 'left' : 'right';
 785                         }
 786                         return $prefix.$this->makeThumbLink2( $title, $file, $fp, $hp, $time, $query ).$postfix;
 787                 }
 788
 789                 if ( $file && isset( $fp['frameless'] ) ) {
 790                         $srcWidth = $file->getWidth( $page );
 791                         # For "frameless" option: do not present an image bigger than the source (for bitmap-style images)
 792                         # This is the same behaviour as the "thumb" option does it already.
 793                         if ( $srcWidth && !$file->mustRender() && $hp['width'] > $srcWidth ) {
 794                                 $hp['width'] = $srcWidth;
 795                         }
 796                 }
 797
 798                 if ( $file && $hp['width'] ) {
 799                         # Create a resized image, without the additional thumbnail features
 800                         $thumb = $file->transform( $hp );
 801                 } else {
 802                         $thumb = false;
 803                 }
 804
 805                 if ( !$thumb ) {
 806                         $s = $this->makeBrokenImageLinkObj( $title, '', '', '', '', $time==true );
 807                 } else {
 808                         $s = $thumb->toHtml( array(
 809                                 'desc-link' => true,
 810                                 'desc-query' => $query,
 811                                 'alt' => $fp['alt'],
 812                                 'valign' => isset( $fp['valign'] ) ? $fp['valign'] : false ,
 813                                 'img-class' => isset( $fp['border'] ) ? 'thumbborder' : false ) );
 814                 }
 815                 if ( '' != $fp['align'] ) {
 816                         $s = "<div class=\"float{$fp['align']}\"><span>{$s}</span></div>";
 817                 }
 818                 return str_replace("\n", ' ',$prefix.$s.$postfix);
 819         }
 820
 821         /**
 822          * Make HTML for a thumbnail including image, border and caption
 823          * @param Title $title
 824          * @param File $file File object or false if it doesn't exist
 825          */
 826         function makeThumbLinkObj( Title $title, $file, $label = '', $alt, $align = 'right', $params = array(), $framed=false , $manualthumb = "" ) {
 827                 $frameParams = array(
 828                         'alt' => $alt,
 829                         'caption' => $label,
 830                         'align' => $align
 831                 );
 832                 if ( $framed ) $frameParams['framed'] = true;
 833                 if ( $manualthumb ) $frameParams['manualthumb'] = $manualthumb;
 834                 return $this->makeThumbLink2( $title, $file, $frameParams, $params );
 835         }
 836
 837         function makeThumbLink2( Title $title, $file, $frameParams = array(), $handlerParams = array(), $time = false, $query = "" ) {
 838                 global $wgStylePath, $wgContLang;
 839                 $exists = $file && $file->exists();
 840
 841                 # Shortcuts
 842                 $fp =& $frameParams;
 843                 $hp =& $handlerParams;
 844
 845                 $page = isset( $hp['page'] ) ? $hp['page'] : false;
 846                 if ( !isset( $fp['align'] ) ) $fp['align'] = 'right';
 847                 if ( !isset( $fp['alt'] ) ) $fp['alt'] = '';
 848                 if ( !isset( $fp['caption'] ) ) $fp['caption'] = '';
 849
 850                 if ( empty( $hp['width'] ) ) {
 851                         // Reduce width for upright images when parameter 'upright' is used
 852                         $hp['width'] = isset( $fp['upright'] ) ? 130 : 180;
 853                 }
 854                 $thumb = false;
 855
 856                 if ( !$exists ) {
 857                         $outerWidth = $hp['width'] + 2;
 858                 } else {
 859                         if ( isset( $fp['manualthumb'] ) ) {
 860                                 # Use manually specified thumbnail
 861                                 $manual_title = Title::makeTitleSafe( NS_IMAGE, $fp['manualthumb'] );
 862                                 if( $manual_title ) {
 863                                         $manual_img = wfFindFile( $manual_title );
 864                                         if ( $manual_img ) {
 865                                                 $thumb = $manual_img->getUnscaledThumb();
 866                                         } else {
 867                                                 $exists = false;
 868                                         }
 869                                 }
 870                         } elseif ( isset( $fp['framed'] ) ) {
 871                                 // Use image dimensions, don't scale
 872                                 $thumb = $file->getUnscaledThumb( $page );
 873                         } else {
 874                                 # Do not present an image bigger than the source, for bitmap-style images
 875                                 # This is a hack to maintain compatibility with arbitrary pre-1.10 behaviour
 876                                 $srcWidth = $file->getWidth( $page );
 877                                 if ( $srcWidth && !$file->mustRender() && $hp['width'] > $srcWidth ) {
 878                                         $hp['width'] = $srcWidth;
 879                                 }
 880                                 $thumb = $file->transform( $hp );
 881                         }
 882
 883                         if ( $thumb ) {
 884                                 $outerWidth = $thumb->getWidth() + 2;
 885                         } else {
 886                                 $outerWidth = $hp['width'] + 2;
 887                         }
 888                 }
 889
 890                 if( $page ) {
 891                         $query = $query ? '&page=' . urlencode( $page ) : 'page=' . urlencode( $page );
 892                 }
 893                 $url = $title->getLocalURL( $query );
 894
 895                 $more = htmlspecialchars( wfMsg( 'thumbnail-more' ) );
 896
 897                 $s = "<div class=\"thumb t{$fp['align']}\"><div class=\"thumbinner\" style=\"width:{$outerWidth}px;\">";
 898                 if( !$exists ) {
 899                         $s .= $this->makeBrokenImageLinkObj( $title, '', '', '', '', $time==true );
 900                         $zoomicon = '';
 901                 } elseif ( !$thumb ) {
 902                         $s .= htmlspecialchars( wfMsg( 'thumbnail_error', '' ) );
 903                         $zoomicon = '';
 904                 } else {
 905                         $s .= $thumb->toHtml( array(
 906                                 'alt' => $fp['alt'],
 907                                 'img-class' => 'thumbimage',
 908                                 'desc-link' => true,
 909                                 'desc-query' => $query ) );
 910                         if ( isset( $fp['framed'] ) ) {
 911                                 $zoomicon="";
 912                         } else {
 913                                 $zoomicon =  '<div class="magnify">'.
 914                                         '<a href="'.$url.'" class="internal" title="'.$more.'">'.
 915                                         '<img src="'.$wgStylePath.'/common/images/magnify-clip.png" ' .
 916                                         'width="15" height="11" alt="" /></a></div>';
 917                         }
 918                 }
 919                 $s .= '  <div class="thumbcaption">'.$zoomicon.$fp['caption']."</div></div></div>";
 920                 return str_replace("\n", ' ', $s);
 921         }
 922
 923         /**
 924          * Make a "broken" link to an image
 925          *
 926          * @param Title $title Image title
 927          * @param string $text Link label
 928          * @param string $query Query string
 929          * @param string $trail Link trail
 930          * @param string $prefix Link prefix
 931          * @param bool $time, a file of a certain timestamp was requested
 932          * @return string
 933          */
 934         public function makeBrokenImageLinkObj( $title, $text = '', $query = '', $trail = '', $prefix = '', $time = false ) {
 935                 global $wgEnableUploads;
 936                 if( $title instanceof Title ) {
 937                         wfProfileIn( __METHOD__ );
 938                         $currentExists = $time ? ( wfFindFile( $title ) != false ) : false;
 939                         if( $wgEnableUploads && !$currentExists ) {
 940                                 $upload = SpecialPage::getTitleFor( 'Upload' );
 941                                 if( $text == '' )
 942                                         $text = htmlspecialchars( $title->getPrefixedText() );
 943                                 $redir = RepoGroup::singleton()->getLocalRepo()->checkRedirect( $title );
 944                                 if( $redir ) {
 945                                         return $this->makeKnownLinkObj( $title, $text, $query, $trail, $prefix );
 946                                 }
 947                                 $q = 'wpDestFile=' . $title->getPartialUrl();
 948                                 if( $query != '' )
 949                                         $q .= '&' . $query;
 950                                 list( $inside, $trail ) = self::splitTrail( $trail );
 951                                 $style = $this->getInternalLinkAttributesObj( $title, $text, 'new' );
 952                                 wfProfileOut( __METHOD__ );
 953                                 return '<a href="' . $upload->escapeLocalUrl( $q ) . '"'
 954                                         . $style . '>' . $prefix . $text . $inside . '</a>' . $trail;
 955                         } else {
 956                                 wfProfileOut( __METHOD__ );
 957                                 return $this->makeKnownLinkObj( $title, $text, $query, $trail, $prefix );
 958                         }
 959                 } else {
 960                         return "<!-- ERROR -->{$prefix}{$text}{$trail}";
 961                 }
 962         }
 963
 964         /** @deprecated use Linker::makeMediaLinkObj() */
 965         function makeMediaLink( $name, $unused = '', $text = '', $time = false ) {
 966                 $nt = Title::makeTitleSafe( NS_IMAGE, $name );
 967                 return $this->makeMediaLinkObj( $nt, $text, $time );
 968         }
 969
 970         /**
 971          * Create a direct link to a given uploaded file.
 972          *
 973          * @param $title Title object.
 974          * @param $text String: pre-sanitized HTML
 975          * @param $time string: time image was created
 976          * @return string HTML
 977          *
 978          * @public
 979          * @todo Handle invalid or missing images better.
 980          */
 981         function makeMediaLinkObj( $title, $text = '', $time = false ) {
 982                 if( is_null( $title ) ) {
 983                         ### HOTFIX. Instead of breaking, return empty string.
 984                         return $text;
 985                 } else {
 986                         $img  = wfFindFile( $title, $time );
 987                         if( $img ) {
 988                                 $url  = $img->getURL();
 989                                 $class = 'internal';
 990                         } else {
 991                                 $upload = SpecialPage::getTitleFor( 'Upload' );
 992                                 $url = $upload->getLocalUrl( 'wpDestFile=' . urlencode( $title->getDBkey() ) );
 993                                 $class = 'new';
 994                         }
 995                         $alt = htmlspecialchars( $title->getText() );
 996                         if( $text == '' ) {
 997                                 $text = $alt;
 998                         }
 999                         $u = htmlspecialchars( $url );
1000                         return "<a href=\"{$u}\" class=\"$class\" title=\"{$alt}\">{$text}</a>";
1001                 }
1002         }
1003
1004         /** @todo document */
1005         function specialLink( $name, $key = '' ) {
1006                 global $wgContLang;
1007
1008                 if ( '' == $key ) { $key = strtolower( $name ); }
1009                 $pn = $wgContLang->ucfirst( $name );
1010                 return $this->makeKnownLink( $wgContLang->specialPage( $pn ),
1011                   wfMsg( $key ) );
1012         }
1013
1014         /** @todo document */
1015         function makeExternalLink( $url, $text, $escape = true, $linktype = '', $ns = null ) {
1016                 $style = $this->getExternalLinkAttributes( $url, $text, 'external ' . $linktype );
1017                 global $wgNoFollowLinks, $wgNoFollowNsExceptions;
1018                 if( $wgNoFollowLinks && !(isset($ns) && in_array($ns, $wgNoFollowNsExceptions)) ) {
1019                         $style .= ' rel="nofollow"';
1020                 }
1021                 $url = htmlspecialchars( $url );
1022                 if( $escape ) {
1023                         $text = htmlspecialchars( $text );
1024                 }
1025                 $link = '';
1026                 $success = wfRunHooks('LinkerMakeExternalLink', array( &$url, &$text, &$link ) );
1027                 if(!$success) {
1028                         wfDebug("Hook LinkerMakeExternalLink changed the output of link with url {$url} and text {$text} to {$link}", true);
1029                         return $link;
1030                 }
1031                 return '<a href="'.$url.'"'.$style.'>'.$text.'</a>';
1032         }
1033
1034         /**
1035          * Make user link (or user contributions for unregistered users)
1036          * @param $userId   Integer: user id in database.
1037          * @param $userText String: user name in database
1038          * @return string HTML fragment
1039          * @private
1040          */
1041         function userLink( $userId, $userText ) {
1042                 $encName = htmlspecialchars( $userText );
1043                 if( $userId == 0 ) {
1044                         $page = SpecialPage::getTitleFor( 'Contributions', $userText );
1045                 } else {
1046                         $page = Title::makeTitle( NS_USER, $userText );
1047                 }
1048                 return $this->link( $page, $encName );
1049         }
1050
1051         /**
1052          * Generate standard user tool links (talk, contributions, block link, etc.)
1053          *
1054          * @param int $userId User identifier
1055          * @param string $userText User name or IP address
1056          * @param bool $redContribsWhenNoEdits Should the contributions link be red if the user has no edits?
1057          * @param int $flags Customisation flags (e.g. self::TOOL_LINKS_NOBLOCK)
1058          * @param int $edits, user edit count (optional, for performance)
1059          * @return string
1060          */
1061         public function userToolLinks( $userId, $userText, $redContribsWhenNoEdits = false, $flags = 0, $edits=null ) {
1062                 global $wgUser, $wgDisableAnonTalk, $wgSysopUserBans;
1063                 $talkable = !( $wgDisableAnonTalk && 0 == $userId );
1064                 $blockable = ( $wgSysopUserBans || 0 == $userId ) && !$flags & self::TOOL_LINKS_NOBLOCK;
1065
1066                 $items = array();
1067                 if( $talkable ) {
1068                         $items[] = $this->userTalkLink( $userId, $userText );
1069                 }
1070                 if( $userId ) {
1071                         // check if the user has an edit
1072                         $attribs = array();
1073                         if( $redContribsWhenNoEdits ) {
1074                                 $count = !is_null($edits) ? $edits : User::edits( $userId );
1075                                 if( $count == 0 ) {
1076                                         $attribs['class'] = 'new';
1077                                 }
1078                         }
1079                         $contribsPage = SpecialPage::getTitleFor( 'Contributions', $userText );
1080
1081                         $items[] = $this->link( $contribsPage, wfMsgHtml( 'contribslink' ), $attribs );
1082                 }
1083                 if( $blockable && $wgUser->isAllowed( 'block' ) ) {
1084                         $items[] = $this->blockLink( $userId, $userText );
1085                 }
1086
1087                 if( $items ) {
1088                         return ' (' . implode( ' | ', $items ) . ')';
1089                 } else {
1090                         return '';
1091                 }
1092         }
1093
1094         /**
1095          * Alias for userToolLinks( $userId, $userText, true );
1096          * @param int $userId User identifier
1097          * @param string $userText User name or IP address
1098          * @param int $edits, user edit count (optional, for performance)
1099          */
1100         public function userToolLinksRedContribs( $userId, $userText, $edits=null ) {
1101                 return $this->userToolLinks( $userId, $userText, true, 0, $edits );
1102         }
1103
1104
1105         /**
1106          * @param $userId Integer: user id in database.
1107          * @param $userText String: user name in database.
1108          * @return string HTML fragment with user talk link
1109          * @private
1110          */
1111         function userTalkLink( $userId, $userText ) {
1112                 $userTalkPage = Title::makeTitle( NS_USER_TALK, $userText );
1113                 $userTalkLink = $this->link( $userTalkPage, wfMsgHtml( 'talkpagelinktext' ) );
1114                 return $userTalkLink;
1115         }
1116
1117         /**
1118          * @param $userId Integer: userid
1119          * @param $userText String: user name in database.
1120          * @return string HTML fragment with block link
1121          * @private
1122          */
1123         function blockLink( $userId, $userText ) {
1124                 $blockPage = SpecialPage::getTitleFor( 'Blockip', $userText );
1125                 $blockLink = $this->link( $blockPage, wfMsgHtml( 'blocklink' ) );
1126                 return $blockLink;
1127         }
1128
1129         /**
1130          * Generate a user link if the current user is allowed to view it
1131          * @param $rev Revision object.
1132          * @param $isPublic, bool, show only if all users can see it
1133          * @return string HTML
1134          */
1135         function revUserLink( $rev, $isPublic = false ) {
1136                 if( $rev->isDeleted( Revision::DELETED_USER ) && $isPublic ) {
1137                         $link = wfMsgHtml( 'rev-deleted-user' );
1138                 } else if( $rev->userCan( Revision::DELETED_USER ) ) {
1139                         $link = $this->userLink( $rev->getRawUser(), $rev->getRawUserText() );
1140                 } else {
1141                         $link = wfMsgHtml( 'rev-deleted-user' );
1142                 }
1143                 if( $rev->isDeleted( Revision::DELETED_USER ) ) {
1144                         return '<span class="history-deleted">' . $link . '</span>';
1145                 }
1146                 return $link;
1147         }
1148
1149         /**
1150          * Generate a user tool link cluster if the current user is allowed to view it
1151          * @param $rev Revision object.
1152          * @param $isPublic, bool, show only if all users can see it
1153          * @return string HTML
1154          */
1155         function revUserTools( $rev, $isPublic = false ) {
1156                 if( $rev->isDeleted( Revision::DELETED_USER ) && $isPublic ) {
1157                         $link = wfMsgHtml( 'rev-deleted-user' );
1158                 } else if( $rev->userCan( Revision::DELETED_USER ) ) {
1159                         $link = $this->userLink( $rev->getRawUser(), $rev->getRawUserText() ) .
1160                         ' ' . $this->userToolLinks( $rev->getRawUser(), $rev->getRawUserText() );
1161                 } else {
1162                         $link = wfMsgHtml( 'rev-deleted-user' );
1163                 }
1164                 if( $rev->isDeleted( Revision::DELETED_USER ) ) {
1165                         return ' <span class="history-deleted">' . $link . '</span>';
1166                 }
1167                 return $link;
1168         }
1169
1170         /**
1171          * This function is called by all recent changes variants, by the page history,
1172          * and by the user contributions list. It is responsible for formatting edit
1173          * comments. It escapes any HTML in the comment, but adds some CSS to format
1174          * auto-generated comments (from section editing) and formats [[wikilinks]].
1175          *
1176          * @author Erik Moeller <moeller@scireview.de>
1177          *
1178          * Note: there's not always a title to pass to this function.
1179          * Since you can't set a default parameter for a reference, I've turned it
1180          * temporarily to a value pass. Should be adjusted further. --brion
1181          *
1182          * @param string $comment
1183          * @param mixed $title Title object (to generate link to the section in autocomment) or null
1184          * @param bool $local Whether section links should refer to local page
1185          */
1186         function formatComment($comment, $title = NULL, $local = false) {
1187                 wfProfileIn( __METHOD__ );
1188
1189                 # Sanitize text a bit:
1190                 $comment = str_replace( "\n", " ", $comment );
1191                 $comment = htmlspecialchars( $comment );
1192
1193                 # Render autocomments and make links:
1194                 $comment = $this->formatAutoComments( $comment, $title, $local );
1195                 $comment = $this->formatLinksInComment( $comment );
1196
1197                 wfProfileOut( __METHOD__ );
1198                 return $comment;
1199         }
1200
1201         /**
1202          * The pattern for autogen comments is / * foo * /, which makes for
1203          * some nasty regex.
1204          * We look for all comments, match any text before and after the comment,
1205          * add a separator where needed and format the comment itself with CSS
1206          * Called by Linker::formatComment.
1207          *
1208          * @param string $comment Comment text
1209          * @param object $title An optional title object used to links to sections
1210          * @return string $comment formatted comment
1211          *
1212          * @todo Document the $local parameter.
1213          */
1214         private function formatAutocomments( $comment, $title = null, $local = false ) {
1215                 $match = array();
1216                 while (preg_match('!(.*)/\*\s*(.*?)\s*\*/(.*)!', $comment,$match)) {
1217                         $pre=$match[1];
1218                         $auto=$match[2];
1219                         $post=$match[3];
1220                         $link='';
1221                         if( $title ) {
1222                                 $section = $auto;
1223
1224                                 # Generate a valid anchor name from the section title.
1225                                 # Hackish, but should generally work - we strip wiki
1226                                 # syntax, including the magic [[: that is used to
1227                                 # "link rather than show" in case of images and
1228                                 # interlanguage links.
1229                                 $section = str_replace( '[[:', '', $section );
1230                                 $section = str_replace( '[[', '', $section );
1231                                 $section = str_replace( ']]', '', $section );
1232                                 if ( $local ) {
1233                                         $sectionTitle = Title::newFromText( '#' . $section );
1234                                 } else {
1235                                         $sectionTitle = wfClone( $title );
1236                                         $sectionTitle->mFragment = $section;
1237                                 }
1238                                 $link = $this->link( $sectionTitle, wfMsgForContent( 'sectionlink' ) );
1239                         }
1240                         $auto = $link . $auto;
1241                         if( $pre ) {
1242                                 # written summary $presep autocomment (summary /* section */)
1243                                 $auto = wfMsgExt( 'autocomment-prefix', array( 'escapenoentities', 'content' ) ) . $auto;
1244                         }
1245                         if( $post ) {
1246                                 # autocomment $postsep written summary (/* section */ summary)
1247                                 $auto .= wfMsgExt( 'colon-separator', array( 'escapenoentities', 'content' ) );
1248                         }
1249                         $auto = '<span class="autocomment">' . $auto . '</span>';
1250                         $comment = $pre . $auto . $post;
1251                 }
1252
1253                 return $comment;
1254         }
1255
1256         /**
1257          * Formats wiki links and media links in text; all other wiki formatting
1258          * is ignored
1259          *
1260          * @fixme doesn't handle sub-links as in image thumb texts like the main parser
1261          * @param string $comment Text to format links in
1262          * @return string
1263          */
1264         public function formatLinksInComment( $comment ) {
1265                 return preg_replace_callback(
1266                         '/\[\[:?(.*?)(\|(.*?))*\]\]([^[]*)/',
1267                         array( $this, 'formatLinksInCommentCallback' ),
1268                         $comment );
1269         }
1270
1271         protected function formatLinksInCommentCallback( $match ) {
1272                 global $wgContLang;
1273
1274                 $medians = '(?:' . preg_quote( MWNamespace::getCanonicalName( NS_MEDIA ), '/' ) . '|';
1275                 $medians .= preg_quote( $wgContLang->getNsText( NS_MEDIA ), '/' ) . '):';
1276
1277                 $comment = $match[0];
1278
1279                 # fix up urlencoded title texts (copied from Parser::replaceInternalLinks)
1280                 if( strpos( $match[1], '%' ) !== false ) {
1281                         $match[1] = str_replace( array('<', '>'), array('&lt;', '&gt;'), urldecode($match[1]) );
1282                 }
1283
1284                 # Handle link renaming [[foo|text]] will show link as "text"
1285                 if( "" != $match[3] ) {
1286                         $text = $match[3];
1287                 } else {
1288                         $text = $match[1];
1289                 }
1290                 $submatch = array();
1291                 if( preg_match( '/^' . $medians . '(.*)$/i', $match[1], $submatch ) ) {
1292                         # Media link; trail not supported.
1293                         $linkRegexp = '/\[\[(.*?)\]\]/';
1294                         $thelink = $this->makeMediaLink( $submatch[1], "", $text );
1295                 } else {
1296                         # Other kind of link
1297                         if( preg_match( $wgContLang->linkTrail(), $match[4], $submatch ) ) {
1298                                 $trail = $submatch[1];
1299                         } else {
1300                                 $trail = "";
1301                         }
1302                         $linkRegexp = '/\[\[(.*?)\]\]' . preg_quote( $trail, '/' ) . '/';
1303                         if (isset($match[1][0]) && $match[1][0] == ':')
1304                                 $match[1] = substr($match[1], 1);
1305                         $thelink = $this->makeLink( $match[1], $text, "", $trail );
1306                 }
1307                 $comment = preg_replace( $linkRegexp, StringUtils::escapeRegexReplacement( $thelink ), $comment, 1 );
1308
1309                 return $comment;
1310         }
1311
1312         /**
1313          * Wrap a comment in standard punctuation and formatting if
1314          * it's non-empty, otherwise return empty string.
1315          *
1316          * @param string $comment
1317          * @param mixed $title Title object (to generate link to section in autocomment) or null
1318          * @param bool $local Whether section links should refer to local page
1319          *
1320          * @return string
1321          */
1322         function commentBlock( $comment, $title = NULL, $local = false ) {
1323                 // '*' used to be the comment inserted by the software way back
1324                 // in antiquity in case none was provided, here for backwards
1325                 // compatability, acc. to brion -ævar
1326                 if( $comment == '' || $comment == '*' ) {
1327                         return '';
1328                 } else {
1329                         $formatted = $this->formatComment( $comment, $title, $local );
1330                         return " <span class=\"comment\">($formatted)</span>";
1331                 }
1332         }
1333
1334         /**
1335          * Wrap and format the given revision's comment block, if the current
1336          * user is allowed to view it.
1337          *
1338          * @param Revision $rev
1339          * @param bool $local Whether section links should refer to local page
1340          * @param $isPublic, show only if all users can see it
1341          * @return string HTML
1342          */
1343         function revComment( Revision $rev, $local = false, $isPublic = false ) {
1344                 if( $rev->isDeleted( Revision::DELETED_COMMENT ) && $isPublic ) {
1345                         $block = " <span class=\"comment\">" . wfMsgHtml( 'rev-deleted-comment' ) . "</span>";
1346                 } else if( $rev->userCan( Revision::DELETED_COMMENT ) ) {
1347                         $block = $this->commentBlock( $rev->getRawComment(), $rev->getTitle(), $local );
1348                 } else {
1349                         $block = " <span class=\"comment\">" . wfMsgHtml( 'rev-deleted-comment' ) . "</span>";
1350                 }
1351                 if( $rev->isDeleted( Revision::DELETED_COMMENT ) ) {
1352                         return " <span class=\"history-deleted\">$block</span>";
1353                 }
1354                 return $block;
1355         }
1356
1357         public function formatRevisionSize( $size ) {
1358                 if ( $size == 0 ) {
1359                         $stxt = wfMsgExt( 'historyempty', 'parsemag' );
1360                 } else {
1361                         global $wgLang;
1362                         $stxt = wfMsgExt( 'nbytes', 'parsemag', $wgLang->formatNum( $size ) );
1363                         $stxt = "($stxt)";
1364                 }
1365                 $stxt = htmlspecialchars( $stxt );
1366                 return "<span class=\"history-size\">$stxt</span>";
1367         }
1368
1369         /** @todo document */
1370         function tocIndent() {
1371                 return "\n<ul>";
1372         }
1373
1374         /** @todo document */
1375         function tocUnindent($level) {
1376                 return "</li>\n" . str_repeat( "</ul>\n</li>\n", $level>0 ? $level : 0 );
1377         }
1378
1379         /**
1380          * parameter level defines if we are on an indentation level
1381          */
1382         function tocLine( $anchor, $tocline, $tocnumber, $level ) {
1383                 return "\n<li class=\"toclevel-$level\"><a href=\"#" .
1384                         $anchor . '"><span class="tocnumber">' .
1385                         $tocnumber . '</span> <span class="toctext">' .
1386                         $tocline . '</span></a>';
1387         }
1388
1389         /** @todo document */
1390         function tocLineEnd() {
1391                 return "</li>\n";
1392         }
1393
1394         /** @todo document */
1395         function tocList($toc) {
1396                 global $wgJsMimeType;
1397                 $title = wfMsgHtml('toc') ;
1398                 return
1399                    '<table id="toc" class="toc" summary="' . $title .'"><tr><td>'
1400                  . '<div id="toctitle"><h2>' . $title . "</h2></div>\n"
1401                  . $toc
1402                  # no trailing newline, script should not be wrapped in a
1403                  # paragraph
1404                  . "</ul>\n</td></tr></table>"
1405                  . '<script type="' . $wgJsMimeType . '">'
1406                  . ' if (window.showTocToggle) {'
1407                  . ' var tocShowText = "' . wfEscapeJsString( wfMsg('showtoc') ) . '";'
1408                  . ' var tocHideText = "' . wfEscapeJsString( wfMsg('hidetoc') ) . '";'
1409                  . ' showTocToggle();'
1410                  . ' } '
1411                  . "</script>\n";
1412         }
1413
1414         /**
1415          * Used to generate section edit links that point to "other" pages
1416          * (sections that are really part of included pages).
1417          *
1418          * @param $title Title string.
1419          * @param $section Integer: section number.
1420          */
1421         public function editSectionLinkForOther( $title, $section ) {
1422                 wfDeprecated( __METHOD__ );
1423                 $title = Title::newFromText( $title );
1424                 return $this->doEditSectionLink( $title, $section );
1425         }
1426
1427         /**
1428          * @param $nt Title object.
1429          * @param $section Integer: section number.
1430          * @param $hint Link String: title, or default if omitted or empty
1431          */
1432         public function editSectionLink( Title $nt, $section, $hint = '' ) {
1433                 wfDeprecated( __METHOD__ );
1434                 if( $hint === '' ) {
1435                         # No way to pass an actual empty $hint here!  The new interface al-
1436                         # lows this, so we have to do this for compatibility.
1437                         $hint = null;
1438                 }
1439                 return $this->doEditSectionLink( $nt, $section, $hint );
1440         }
1441
1442         /**
1443          * Create a section edit link.  This supersedes editSectionLink() and
1444          * editSectionLinkForOther().
1445          *
1446          * @param $nt      Title  The title being linked to (may not be the same as
1447          *   $wgTitle, if the section is included from a template)
1448          * @param $section string The designation of the section being pointed to,
1449          *   to be included in the link, like "&section=$section"
1450          * @param $tooltip string The tooltip to use for the link: will be escaped
1451          *   and wrapped in the 'editsectionhint' message
1452          * @return         string HTML to use for edit link
1453          */
1454         public function doEditSectionLink( Title $nt, $section, $tooltip = null ) {
1455                 $attribs = array();
1456                 if( !is_null( $tooltip ) ) {
1457                         $attribs['title'] = wfMsg( 'editsectionhint', $tooltip );
1458                 }
1459                 $url = $this->link( $nt, wfMsg('editsection'),
1460                         $attribs,
1461                         array( 'action' => 'edit', 'section' => $section ),
1462                         array( 'noclasses', 'known' )
1463                 );
1464
1465                 # Run the old hook.  This takes up half of the function . . . hopefully
1466                 # we can rid of it someday.
1467                 $attribs = '';
1468                 if( $tooltip ) {
1469                         $attribs = wfMsgHtml( 'editsectionhint', htmlspecialchars( $tooltip ) );
1470                         $attribs = " title=\"$attribs\"";
1471                 }
1472                 $result = null;
1473                 wfRunHooks( 'EditSectionLink', array( &$this, $nt, $section, $attribs, $url, &$result ) );
1474                 if( !is_null( $result ) ) {
1475                         # For reverse compatibility, add the brackets *after* the hook is
1476                         # run, and even add them to hook-provided text.  (This is the main
1477                         # reason that the EditSectionLink hook is deprecated in favor of
1478                         # DoEditSectionLink: it can't change the brackets or the span.)
1479                         $result = wfMsgHtml( 'editsection-brackets', $url );
1480                         return "<span class=\"editsection\">$result</span>";
1481                 }
1482
1483                 # Add the brackets and the span, and *then* run the nice new hook, with
1484                 # clean and non-redundant arguments.
1485                 $result = wfMsgHtml( 'editsection-brackets', $url );
1486                 $result = "<span class=\"editsection\">$result</span>";
1487
1488                 wfRunHooks( 'DoEditSectionLink', array( $this, $nt, $section, $tooltip, &$result ) );
1489                 return $result;
1490         }
1491
1492         /**
1493          * Create a headline for content
1494          *
1495          * @param int    $level   The level of the headline (1-6)
1496          * @param string $attribs Any attributes for the headline, starting with a space and ending with '>'
1497          *                        This *must* be at least '>' for no attribs
1498          * @param string $anchor  The anchor to give the headline (the bit after the #)
1499          * @param string $text    The text of the header
1500          * @param string $link    HTML to add for the section edit link
1501          *
1502          * @return string HTML headline
1503          */
1504         public function makeHeadline( $level, $attribs, $anchor, $text, $link ) {
1505                 return "<a name=\"$anchor\"></a><h$level$attribs$link <span class=\"mw-headline\">$text</span></h$level>";
1506         }
1507
1508         /**
1509          * Split a link trail, return the "inside" portion and the remainder of the trail
1510          * as a two-element array
1511          *
1512          * @static
1513          */
1514         static function splitTrail( $trail ) {
1515                 static $regex = false;
1516                 if ( $regex === false ) {
1517                         global $wgContLang;
1518                         $regex = $wgContLang->linkTrail();
1519                 }
1520                 $inside = '';
1521                 if ( '' != $trail ) {
1522                         $m = array();
1523                         if ( preg_match( $regex, $trail, $m ) ) {
1524                                 $inside = $m[1];
1525                                 $trail = $m[2];
1526                         }
1527                 }
1528                 return array( $inside, $trail );
1529         }
1530
1531         /**
1532          * Generate a rollback link for a given revision.  Currently it's the
1533          * caller's responsibility to ensure that the revision is the top one. If
1534          * it's not, of course, the user will get an error message.
1535          *
1536          * If the calling page is called with the parameter &bot=1, all rollback
1537          * links also get that parameter. It causes the edit itself and the rollback
1538          * to be marked as "bot" edits. Bot edits are hidden by default from recent
1539          * changes, so this allows sysops to combat a busy vandal without bothering
1540          * other users.
1541          *
1542          * @param Revision $rev
1543          */
1544         function generateRollback( $rev ) {
1545                 return '<span class="mw-rollback-link">['
1546                         . $this->buildRollbackLink( $rev )
1547                         . ']</span>';
1548         }
1549
1550         /**
1551          * Build a raw rollback link, useful for collections of "tool" links
1552          *
1553          * @param Revision $rev
1554          * @return string
1555          */
1556         public function buildRollbackLink( $rev ) {
1557                 global $wgRequest, $wgUser;
1558                 $title = $rev->getTitle();
1559                 $query = array(
1560                         'action' => 'rollback',
1561                         'from' => $rev->getUserText()
1562                 );
1563                 if( $wgRequest->getBool( 'bot' ) ) {
1564                         $query['bot'] = '1';
1565                 }
1566                 $query['token'] = $wgUser->editToken( array( $title->getPrefixedText(),
1567                         $rev->getUserText() ) );
1568                 return $this->link( $title, wfMsgHtml( 'rollbacklink' ), array(),
1569                         $query, array( 'known', 'noclasses' ) );
1570         }
1571
1572         /**
1573          * Returns HTML for the "templates used on this page" list.
1574          *
1575          * @param array $templates Array of templates from Article::getUsedTemplate
1576          * or similar
1577          * @param bool $preview Whether this is for a preview
1578          * @param bool $section Whether this is for a section edit
1579          * @return string HTML output
1580          */
1581         public function formatTemplates( $templates, $preview = false, $section = false) {
1582                 global $wgUser;
1583                 wfProfileIn( __METHOD__ );
1584
1585                 $sk = $wgUser->getSkin();
1586
1587                 $outText = '';
1588                 if ( count( $templates ) > 0 ) {
1589                         # Do a batch existence check
1590                         $batch = new LinkBatch;
1591                         foreach( $templates as $title ) {
1592                                 $batch->addObj( $title );
1593                         }
1594                         $batch->execute();
1595
1596                         # Construct the HTML
1597                         $outText = '<div class="mw-templatesUsedExplanation">';
1598                         if ( $preview ) {
1599                                 $outText .= wfMsgExt( 'templatesusedpreview', array( 'parse' ) );
1600                         } elseif ( $section ) {
1601                                 $outText .= wfMsgExt( 'templatesusedsection', array( 'parse' ) );
1602                         } else {
1603                                 $outText .= wfMsgExt( 'templatesused', array( 'parse' ) );
1604                         }
1605                         $outText .= '</div><ul>';
1606
1607                         usort( $templates, array( 'Title', 'compare' ) );
1608                         foreach ( $templates as $titleObj ) {
1609                                 $r = $titleObj->getRestrictions( 'edit' );
1610                                 if ( in_array( 'sysop', $r ) ) {
1611                                         $protected = wfMsgExt( 'template-protected', array( 'parseinline' ) );
1612                                 } elseif ( in_array( 'autoconfirmed', $r ) ) {
1613                                         $protected = wfMsgExt( 'template-semiprotected', array( 'parseinline' ) );
1614                                 } else {
1615                                         $protected = '';
1616                                 }
1617                                 $outText .= '<li>' . $sk->link( $titleObj ) . ' ' . $protected . '</li>';
1618                         }
1619                         $outText .= '</ul>';
1620                 }
1621                 wfProfileOut( __METHOD__  );
1622                 return $outText;
1623         }
1624
1625         /**
1626          * Returns HTML for the "hidden categories on this page" list.
1627          *
1628          * @param array $hiddencats Array of hidden categories from Article::getHiddenCategories
1629          * or similar
1630          * @return string HTML output
1631          */
1632         public function formatHiddenCategories( $hiddencats) {
1633                 global $wgUser, $wgLang;
1634                 wfProfileIn( __METHOD__ );
1635
1636                 $sk = $wgUser->getSkin();
1637
1638                 $outText = '';
1639                 if ( count( $hiddencats ) > 0 ) {
1640                         # Construct the HTML
1641                         $outText = '<div class="mw-hiddenCategoriesExplanation">';
1642                         $outText .= wfMsgExt( 'hiddencategories', array( 'parse' ), $wgLang->formatnum( count( $hiddencats ) ) );
1643                         $outText .= '</div><ul>';
1644
1645                         foreach ( $hiddencats as $titleObj ) {
1646                                 $outText .= '<li>' . $sk->link( $titleObj, null, array(), array(), 'known' ) . '</li>'; # If it's hidden, it must exist - no need to check with a LinkBatch
1647                         }
1648                         $outText .= '</ul>';
1649                 }
1650                 wfProfileOut( __METHOD__  );
1651                 return $outText;
1652         }
1653
1654         /**
1655          * Format a size in bytes for output, using an appropriate
1656          * unit (B, KB, MB or GB) according to the magnitude in question
1657          *
1658          * @param $size Size to format
1659          * @return string
1660          */
1661         public function formatSize( $size ) {
1662                 global $wgLang;
1663                 return htmlspecialchars( $wgLang->formatSize( $size ) );
1664         }
1665
1666         /**
1667          * Given the id of an interface element, constructs the appropriate title
1668          * and accesskey attributes from the system messages.  (Note, this is usu-
1669          * ally the id but isn't always, because sometimes the accesskey needs to
1670          * go on a different element than the id, for reverse-compatibility, etc.)
1671          *
1672          * @param string $name Id of the element, minus prefixes.
1673          * @return string title and accesskey attributes, ready to drop in an
1674          *   element (e.g., ' title="This does something [x]" accesskey="x"').
1675          */
1676         public function tooltipAndAccesskey($name) {
1677                 $fname="Linker::tooltipAndAccesskey";
1678                 wfProfileIn($fname);
1679                 $out = '';
1680
1681                 $tooltip = wfMsg('tooltip-'.$name);
1682                 if (!wfEmptyMsg('tooltip-'.$name, $tooltip) && $tooltip != '-') {
1683                         // Compatibility: formerly some tooltips had [alt-.] hardcoded
1684                         $tooltip = preg_replace( "/ ?\[alt-.\]$/", '', $tooltip );
1685                         $out .= ' title="'.htmlspecialchars($tooltip);
1686                 }
1687                 $accesskey = wfMsg('accesskey-'.$name);
1688                 if ($accesskey && $accesskey != '-' && !wfEmptyMsg('accesskey-'.$name, $accesskey)) {
1689                         if ($out) $out .= " [$accesskey]\" accesskey=\"$accesskey\"";
1690                         else $out .= " title=\"[$accesskey]\" accesskey=\"$accesskey\"";
1691                 } elseif ($out) {
1692                         $out .= '"';
1693                 }
1694                 wfProfileOut($fname);
1695                 return $out;
1696         }
1697
1698         /**
1699          * Given the id of an interface element, constructs the appropriate title
1700          * attribute from the system messages.  (Note, this is usually the id but
1701          * isn't always, because sometimes the accesskey needs to go on a different
1702          * element than the id, for reverse-compatibility, etc.)
1703          *
1704          * @param string $name Id of the element, minus prefixes.
1705          * @return string title attribute, ready to drop in an element
1706          * (e.g., ' title="This does something"').
1707          */
1708         public function tooltip($name) {
1709                 $out = '';
1710
1711                 $tooltip = wfMsg('tooltip-'.$name);
1712                 if (!wfEmptyMsg('tooltip-'.$name, $tooltip) && $tooltip != '-') {
1713                         $out = ' title="'.htmlspecialchars($tooltip).'"';
1714                 }
1715
1716                 return $out;
1717         }
1718 }