includes/SpecialSearch.php

   1 <?php
   2 # Copyright (C) 2004 Brion Vibber <brion@pobox.com>
   3 # http://www.mediawiki.org/
   4 #
   5 # This program is free software; you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation; either version 2 of the License, or
   8 # (at your option) any later version.
   9 #
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License along
  16 # with this program; if not, write to the Free Software Foundation, Inc.,
  17 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18 # http://www.gnu.org/copyleft/gpl.html
  19
  20 /**
  21  * Run text & title search and display the output
  22  * @addtogroup SpecialPage
  23  */
  24
  25 /**
  26  * Entry point
  27  *
  28  * @param $par String: (default '')
  29  */
  30 function wfSpecialSearch( $par = '' ) {
  31         global $wgRequest, $wgUser;
  32
  33         $search = str_replace( "\n", " ", $wgRequest->getText( 'search', $par ) );
  34         $searchPage = new SpecialSearch( $wgRequest, $wgUser );
  35         if( $wgRequest->getVal( 'fulltext' )
  36                 || !is_null( $wgRequest->getVal( 'offset' ))
  37                 || !is_null( $wgRequest->getVal( 'searchx' ))) {
  38                 $searchPage->showResults( $search, 'search' );
  39         } else {
  40                 $searchPage->goResult( $search );
  41         }
  42 }
  43
  44 /**
  45  * implements Special:Search - Run text & title search and display the output
  46  * @addtogroup SpecialPage
  47  */
  48 class SpecialSearch {
  49
  50         /**
  51          * Set up basic search parameters from the request and user settings.
  52          * Typically you'll pass $wgRequest and $wgUser.
  53          *
  54          * @param WebRequest $request
  55          * @param User $user
  56          * @public
  57          */
  58         function SpecialSearch( &$request, &$user ) {
  59                 list( $this->limit, $this->offset ) = $request->getLimitOffset( 20, 'searchlimit' );
  60
  61                 $this->namespaces = $this->powerSearch( $request );
  62                 if( empty( $this->namespaces ) ) {
  63                         $this->namespaces = SearchEngine::userNamespaces( $user );
  64                 }
  65
  66                 $this->searchRedirects = $request->getcheck( 'redirs' ) ? true : false;
  67         }
  68
  69         /**
  70          * If an exact title match can be found, jump straight ahead to it.
  71          * @param string $term
  72          * @public
  73          */
  74         function goResult( $term ) {
  75                 global $wgOut;
  76                 global $wgGoToEdit;
  77
  78                 $this->setupPage( $term );
  79
  80                 # Try to go to page as entered.
  81                 $t = Title::newFromText( $term );
  82
  83                 # If the string cannot be used to create a title
  84                 if( is_null( $t ) ){
  85                         return $this->showResults( $term );
  86                 }
  87
  88                 # If there's an exact or very near match, jump right there.
  89                 $t = SearchEngine::getNearMatch( $term );
  90                 if( !is_null( $t ) ) {
  91                         $wgOut->redirect( $t->getFullURL() );
  92                         return;
  93                 }
  94
  95                 # No match, generate an edit URL
  96                 $t = Title::newFromText( $term );
  97                 if( ! is_null( $t ) ) {
  98                         wfRunHooks( 'SpecialSearchNogomatch', array( &$t ) );
  99                         # If the feature is enabled, go straight to the edit page
 100                         if ( $wgGoToEdit ) {
 101                                 $wgOut->redirect( $t->getFullURL( 'action=edit' ) );
 102                                 return;
 103                         }
 104                 }
 105                 if( $t->quickUserCan( 'create' ) && $t->quickUserCan( 'edit' ) ) {
 106                         $wgOut->addWikiMsg( 'noexactmatch', wfEscapeWikiText( $term ) );
 107                 } else {
 108                         $wgOut->addWikiMsg( 'noexactmatch-nocreate', wfEscapeWikiText( $term ) );
 109                 }
 110
 111                 return $this->showResults( $term );
 112         }
 113
 114         /**
 115          * @param string $term
 116          * @public
 117          */
 118         function showResults( $term ) {
 119                 $fname = 'SpecialSearch::showResults';
 120                 wfProfileIn( $fname );
 121                 global $wgOut, $wgUser;
 122                 $sk = $wgUser->getSkin();
 123
 124                 $this->setupPage( $term );
 125
 126                 $wgOut->addWikiMsg( 'searchresulttext' );
 127
 128                 if( '' === trim( $term ) ) {
 129                         // Empty query -- straight view of search form
 130                         $wgOut->setSubtitle( '' );
 131                         $wgOut->addHTML( $this->powerSearchBox( $term ) );
 132                         $wgOut->addHTML( $this->powerSearchFocus() );
 133                         wfProfileOut( $fname );
 134                         return;
 135                 }
 136
 137                 global $wgDisableTextSearch;
 138                 if ( $wgDisableTextSearch ) {
 139                         global $wgForwardSearchUrl;
 140                         if( $wgForwardSearchUrl ) {
 141                                 $url = str_replace( '$1', urlencode( $term ), $wgForwardSearchUrl );
 142                                 $wgOut->redirect( $url );
 143                                 return;
 144                         }
 145                         global $wgInputEncoding;
 146                         $wgOut->addHTML(
 147                                 Xml::openElement( 'fieldset' ) .
 148                                 Xml::element( 'legend', null, wfMsg( 'search-external' ) ) .
 149                                 Xml::element( 'p', array( 'class' => 'mw-searchdisabled' ), wfMsg( 'searchdisabled' ) ) .
 150                                 wfMsg( 'googlesearch',
 151                                         htmlspecialchars( $term ),
 152                                         htmlspecialchars( $wgInputEncoding ),
 153                                         htmlspecialchars( wfMsg( 'searchbutton' ) )
 154                                 ) .
 155                                 Xml::closeElement( 'fieldset' )
 156                         );
 157                         wfProfileOut( $fname );
 158                         return;
 159                 }
 160
 161                 $wgOut->addHTML( $this->shortDialog( $term ) );
 162
 163                 $search = SearchEngine::create();
 164                 $search->setLimitOffset( $this->limit, $this->offset );
 165                 $search->setNamespaces( $this->namespaces );
 166                 $search->showRedirects = $this->searchRedirects;
 167                 $rewritten = $search->replacePrefixes($term);
 168
 169                 $titleMatches = $search->searchTitle( $rewritten );
 170
 171                 // Sometimes the search engine knows there are too many hits
 172                 if ($titleMatches instanceof SearchResultTooMany) {
 173                         $wgOut->addWikiText( '==' . wfMsg( 'toomanymatches' ) . "==\n" );
 174                         $wgOut->addHTML( $this->powerSearchBox( $term ) );
 175                         $wgOut->addHTML( $this->powerSearchFocus() );
 176                         wfProfileOut( $fname );
 177                         return;
 178                 }
 179
 180                 $textMatches = $search->searchText( $rewritten );
 181
 182                 // did you mean... suggestions
 183                 if($textMatches && $textMatches->hasSuggestion()){
 184                         $st = SpecialPage::getTitleFor( 'Search' );
 185                         $stParams = wfArrayToCGI( array(
 186                                         'search'        => $textMatches->getSuggestionQuery(),
 187                                         'fulltext'      => wfMsg('search')),
 188                                         $this->powerSearchOptions());
 189
 190                         $suggestLink = '<a href="'.$st->escapeLocalURL($stParams).'">'.
 191                                         $textMatches->getSuggestionSnippet().'</a>';
 192
 193                         $wgOut->addHTML('<div class="searchdidyoumean">'.wfMsg('search-suggest',$suggestLink).'</div>');
 194                 }
 195
 196                 // show number of results
 197                 $num = ( $titleMatches ? $titleMatches->numRows() : 0 )
 198                         + ( $textMatches ? $textMatches->numRows() : 0);
 199                 $totalNum = 0;
 200                 if($titleMatches && !is_null($titleMatches->getTotalHits()))
 201                         $totalNum += $titleMatches->getTotalHits();
 202                 if($textMatches && !is_null($textMatches->getTotalHits()))
 203                         $totalNum += $textMatches->getTotalHits();
 204                 if ( $num > 0 ) {
 205                         if ( $totalNum > 0 ){
 206                                 $top = wfMsgExt('showingresultstotal', array( 'parseinline' ),
 207                                         $this->offset+1, $this->offset+$num, $totalNum );
 208                         } elseif ( $num >= $this->limit ) {
 209                                 $top = wfShowingResults( $this->offset, $this->limit );
 210                         } else {
 211                                 $top = wfShowingResultsNum( $this->offset, $this->limit, $num );
 212                         }
 213                         $wgOut->addHTML( "<p>{$top}</p>\n" );
 214                 }
 215
 216                 // prev/next links
 217                 if( $num || $this->offset ) {
 218                         $prevnext = wfViewPrevNext( $this->offset, $this->limit,
 219                                 SpecialPage::getTitleFor( 'Search' ),
 220                                 wfArrayToCGI(
 221                                         $this->powerSearchOptions(),
 222                                         array( 'search' => $term ) ),
 223                                         ($num < $this->limit) );
 224                         $wgOut->addHTML( "<p>{$prevnext}</p>\n" );
 225                         wfRunHooks( 'SpecialSearchResults', array( $term, $titleMatches, $textMatches ) );
 226                 } else {
 227                         wfRunHooks( 'SpecialSearchNoResults', array( $term ) );
 228                 }
 229
 230                 if( $titleMatches ) {
 231                         if( $titleMatches->numRows() ) {
 232                                 $wgOut->wrapWikiMsg( "==$1==\n", 'titlematches' );
 233                                 $wgOut->addHTML( $this->showMatches( $titleMatches ) );
 234                         } else {
 235                                 $wgOut->wrapWikiMsg( "==$1==\n", 'notitlematches' );
 236                         }
 237                         $titleMatches->free();
 238                 }
 239
 240                 if( $textMatches ) {
 241                         // output appropriate heading
 242                         if( $textMatches->numRows() ) {
 243                                 if($titleMatches)
 244                                         $wgOut->wrapWikiMsg( "==$1==\n", 'textmatches' );
 245                                 else // if no title matches the heading is redundant
 246                                         $wgOut->addHTML("<hr/>");
 247                         } elseif( $num == 0 ) {
 248                                 # Don't show the 'no text matches' if we received title matches
 249                                 $wgOut->wrapWikiMsg( "==$1==\n", 'notextmatches' );
 250                         }
 251                         // show interwiki results if any
 252                         if( $textMatches->hasInterwikiResults() )
 253                                 $wgOut->addHtml( $this->showInterwiki( $textMatches->getInterwikiResults(), $term ));
 254                         // show results
 255                         if( $textMatches->numRows() )
 256                                 $wgOut->addHTML( $this->showMatches( $textMatches ) );
 257
 258                         $textMatches->free();
 259                 }
 260
 261                 if ( $num == 0 ) {
 262                         $wgOut->addWikiMsg( 'nonefound' );
 263                 }
 264                 if( $num || $this->offset ) {
 265                         $wgOut->addHTML( "<p>{$prevnext}</p>\n" );
 266                 }
 267                 $wgOut->addHTML( $this->powerSearchBox( $term ) );
 268                 wfProfileOut( $fname );
 269         }
 270
 271         #------------------------------------------------------------------
 272         # Private methods below this line
 273
 274         /**
 275          *
 276          */
 277         function setupPage( $term ) {
 278                 global $wgOut;
 279                 if( !empty( $term ) )
 280                         $wgOut->setPageTitle( wfMsg( 'searchresults' ) );
 281                 $subtitlemsg = ( Title::newFromText( $term ) ? 'searchsubtitle' : 'searchsubtitleinvalid' );
 282                 $wgOut->setSubtitle( $wgOut->parse( wfMsg( $subtitlemsg, wfEscapeWikiText($term) ) ) );
 283                 $wgOut->setArticleRelated( false );
 284                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 285         }
 286
 287         /**
 288          * Extract "power search" namespace settings from the request object,
 289          * returning a list of index numbers to search.
 290          *
 291          * @param WebRequest $request
 292          * @return array
 293          * @private
 294          */
 295         function powerSearch( &$request ) {
 296                 $arr = array();
 297                 foreach( SearchEngine::searchableNamespaces() as $ns => $name ) {
 298                         if( $request->getCheck( 'ns' . $ns ) ) {
 299                                 $arr[] = $ns;
 300                         }
 301                 }
 302                 return $arr;
 303         }
 304
 305         /**
 306          * Reconstruct the 'power search' options for links
 307          * @return array
 308          * @private
 309          */
 310         function powerSearchOptions() {
 311                 $opt = array();
 312                 foreach( $this->namespaces as $n ) {
 313                         $opt['ns' . $n] = 1;
 314                 }
 315                 $opt['redirs'] = $this->searchRedirects ? 1 : 0;
 316                 return $opt;
 317         }
 318
 319         /**
 320          * Show whole set of results
 321          *
 322          * @param SearchResultSet $matches
 323          */
 324         function showMatches( &$matches ) {
 325                 $fname = 'SpecialSearch::showMatches';
 326                 wfProfileIn( $fname );
 327
 328                 global $wgContLang;
 329                 $terms = $wgContLang->convertForSearchResult( $matches->termMatches() );
 330
 331                 $out = "";
 332
 333                 $infoLine = $matches->getInfo();
 334                 if( !is_null($infoLine) )
 335                         $out .= "\n<!-- {$infoLine} -->\n";
 336
 337
 338                 $off = $this->offset + 1;
 339                 $out .= "<ul start='{$off}' class='mw-search-results'>\n";
 340
 341                 while( $result = $matches->next() ) {
 342                         $out .= $this->showHit( $result, $terms );
 343                 }
 344                 $out .= "</ul>\n";
 345
 346                 // convert the whole thing to desired language variant
 347                 global $wgContLang;
 348                 $out = $wgContLang->convert( $out );
 349                 wfProfileOut( $fname );
 350                 return $out;
 351         }
 352
 353         /**
 354          * Format a single hit result
 355          * @param SearchResult $result
 356          * @param array $terms terms to highlight
 357          */
 358         function showHit( $result, $terms ) {
 359                 $fname = 'SpecialSearch::showHit';
 360                 wfProfileIn( $fname );
 361                 global $wgUser, $wgContLang, $wgLang;
 362
 363                 if( $result->isBrokenTitle() ) {
 364                         wfProfileOut( $fname );
 365                         return "<!-- Broken link in search result -->\n";
 366                 }
 367
 368                 $t = $result->getTitle();
 369                 $sk = $wgUser->getSkin();
 370
 371                 $link = $sk->makeKnownLinkObj( $t, $result->getTitleSnippet($terms));
 372
 373                 //If page content is not readable, just return the title.
 374                 //This is not quite safe, but better than showing excerpts from non-readable pages
 375                 //Note that hiding the entry entirely would screw up paging.
 376                 if (!$t->userCanRead()) {
 377                         return "<li>{$link}</li>\n";
 378                 }
 379
 380                 // If the page doesn't *exist*... our search index is out of date.
 381                 // The least confusing at this point is to drop the result.
 382                 // You may get less results, but... oh well. :P
 383                 if( $result->isMissingRevision() ) {
 384                         return "<!-- missing page " .
 385                                 htmlspecialchars( $t->getPrefixedText() ) . "-->\n";
 386                 }
 387
 388                 // format redirects / relevant sections
 389                 $redirectTitle = $result->getRedirectTitle();
 390                 $redirectText = $result->getRedirectSnippet($terms);
 391                 $sectionTitle = $result->getSectionTitle();
 392                 $sectionText = $result->getSectionSnippet($terms);
 393                 $redirect = '';
 394                 if( !is_null($redirectTitle) )
 395                         $redirect = "<span class='searchalttitle'>"
 396                                 .wfMsg('search-redirect',$sk->makeKnownLinkObj( $redirectTitle, $redirectText))
 397                                 ."</span>";
 398                 $section = '';
 399                 if( !is_null($sectionTitle) )
 400                         $section = "<span class='searchalttitle'>"
 401                                 .wfMsg('search-section', $sk->makeKnownLinkObj( $sectionTitle, $sectionText))
 402                                 ."</span>";
 403
 404                 // format text extract
 405                 $extract = "<div class='searchresult'>".$result->getTextSnippet($terms)."</div>";
 406
 407                 // format score
 408                 if( is_null( $result->getScore() ) ) {
 409                         // Search engine doesn't report scoring info
 410                         $score = '';
 411                 } else {
 412                         $percent = sprintf( '%2.1f', $result->getScore() * 100 );
 413                         $score = wfMsg( 'search-result-score', $wgLang->formatNum( $percent ) )
 414                                 . ' - ';
 415                 }
 416
 417                 // format description
 418                 $byteSize = $result->getByteSize();
 419                 $wordCount = $result->getWordCount();
 420                 $timestamp = $result->getTimestamp();
 421                 $size = wfMsgExt( 'search-result-size', array( 'parsemag', 'escape' ),
 422                         $sk->formatSize( $byteSize ),
 423                         $wordCount );
 424                 $date = $wgLang->timeanddate( $timestamp );
 425
 426                 // link to related articles if supported
 427                 $related = '';
 428                 if( $result->hasRelated() ){
 429                         $st = SpecialPage::getTitleFor( 'Search' );
 430                         $stParams = wfArrayToCGI( $this->powerSearchOptions(),
 431                                 array('search'    => wfMsg('searchrelated').':'.$t->getPrefixedText(),
 432                                       'fulltext'  => wfMsg('search') ));
 433
 434                         $related = ' -- <a href="'.$st->escapeLocalURL($stParams).'">'.
 435                                 wfMsg('search-relatedarticle').'</a>';
 436                 }
 437
 438                 // Include a thumbnail for media files...
 439                 if( $t->getNamespace() == NS_IMAGE ) {
 440                         $img = wfFindFile( $t );
 441                         if( $img ) {
 442                                 $thumb = $img->getThumbnail( 120, 120 );
 443                                 if( $thumb ) {
 444                                         $desc = $img->getShortDesc();
 445                                         wfProfileOut( $fname );
 446                                         // Ugly table. :D
 447                                         // Float doesn't seem to interact well with the bullets.
 448                                         // Table messes up vertical alignment of the bullet, but I'm
 449                                         // not sure what more I can do about that. :(
 450                                         return "<li>" .
 451                                                 '<table class="searchResultImage">' .
 452                                                 '<tr>' .
 453                                                 '<td width="120" align="center">' .
 454                                                 $thumb->toHtml( array( 'desc-link' => true ) ) .
 455                                                 '</td>' .
 456                                                 '<td valign="top">' .
 457                                                 $link .
 458                                                 $extract .
 459                                                 "<div class='mw-search-result-data'>{$score}{$desc} - {$date}{$related}</div>" .
 460                                                 '</td>' .
 461                                                 '</tr>' .
 462                                                 '</table>' .
 463                                                 "</li>\n";
 464                                 }
 465                         }
 466                 }
 467
 468                 wfProfileOut( $fname );
 469                 return "<li>{$link} {$redirect} {$section} {$extract}\n" .
 470                         "<div class='mw-search-result-data'>{$score}{$size} - {$date}{$related}</div>" .
 471                         "</li>\n";
 472
 473         }
 474
 475         /**
 476          * Show results from other wikis
 477          *
 478          * @param SearchResultSet $matches
 479          */
 480         function showInterwiki( &$matches, $query ) {
 481                 $fname = 'SpecialSearch::showInterwiki';
 482                 wfProfileIn( $fname );
 483
 484                 global $wgContLang;
 485                 $terms = $wgContLang->convertForSearchResult( $matches->termMatches() );
 486
 487                 $out = "<div id='mw-search-interwiki'><div id='mw-search-interwiki-caption'>".wfMsg('search-interwiki-caption')."</div>\n";
 488                 $off = $this->offset + 1;
 489                 $out .= "<ul start='{$off}' class='mw-search-iwresults'>\n";
 490
 491                 // work out custom project captions
 492                 $customCaptions = array();
 493                 $customLines = explode("\n",wfMsg('search-interwiki-custom')); // format per line <iwprefix>:<caption>
 494                 foreach($customLines as $line){
 495                         $parts = explode(":",$line,2);
 496                         if(count($parts) == 2) // validate line
 497                                 $customCaptions[$parts[0]] = $parts[1];
 498                 }
 499
 500
 501                 $prev = null;
 502                 while( $result = $matches->next() ) {
 503                         $out .= $this->showInterwikiHit( $result, $prev, $terms, $query, $customCaptions );
 504                         $prev = $result->getInterwikiPrefix();
 505                 }
 506                 // FIXME: should support paging in a non-confusing way (not sure how though, maybe via ajax)..
 507                 $out .= "</ul></div>\n";
 508
 509                 // convert the whole thing to desired language variant
 510                 global $wgContLang;
 511                 $out = $wgContLang->convert( $out );
 512                 wfProfileOut( $fname );
 513                 return $out;
 514         }
 515
 516         /**
 517          * Show single interwiki link
 518          *
 519          * @param SearchResult $result
 520          * @param string $lastInterwiki
 521          * @param array $terms
 522          * @param string $query
 523          * @param array $customCaptions iw prefix -> caption
 524          */
 525         function showInterwikiHit( $result, $lastInterwiki, $terms, $query, $customCaptions){
 526                 $fname = 'SpecialSearch::showInterwikiHit';
 527                 wfProfileIn( $fname );
 528                 global $wgUser, $wgContLang, $wgLang;
 529
 530                 if( $result->isBrokenTitle() ) {
 531                         wfProfileOut( $fname );
 532                         return "<!-- Broken link in search result -->\n";
 533                 }
 534
 535                 $t = $result->getTitle();
 536                 $sk = $wgUser->getSkin();
 537
 538                 $link = $sk->makeKnownLinkObj( $t, $result->getTitleSnippet($terms));
 539
 540                 // format redirect if any
 541                 $redirectTitle = $result->getRedirectTitle();
 542                 $redirectText = $result->getRedirectSnippet($terms);
 543                 $redirect = '';
 544                 if( !is_null($redirectTitle) )
 545                         $redirect = "<span class='searchalttitle'>"
 546                                 .wfMsg('search-redirect',$sk->makeKnownLinkObj( $redirectTitle, $redirectText))
 547                                 ."</span>";
 548
 549                 $out = "";
 550                 // display project name
 551                 if(is_null($lastInterwiki) || $lastInterwiki != $t->getInterwiki()){
 552                         if( key_exists($t->getInterwiki(),$customCaptions) )
 553                                 // captions from 'search-interwiki-custom'
 554                                 $caption = $customCaptions[$t->getInterwiki()];
 555                         else{
 556                                 // default is to show the hostname of the other wiki which might suck
 557                                 // if there are many wikis on one hostname
 558                                 $parsed = parse_url($t->getFullURL());
 559                                 $caption = wfMsg('search-interwiki-default', $parsed['host']);
 560                         }
 561                         // "more results" link (special page stuff could be localized, but we might not know target lang)
 562                         $searchTitle = Title::newFromText($t->getInterwiki().":Special:Search");
 563                         $searchLink = $sk->makeKnownLinkObj( $searchTitle, wfMsg('search-interwiki-more'),
 564                                 wfArrayToCGI(array('search' => $query, 'fulltext' => 'Search')));
 565                         $out .= "</ul><div class='mw-search-interwiki-project'><span class='mw-search-interwiki-more'>{$searchLink}</span>{$caption}</div>\n<ul>";
 566                 }
 567
 568                 $out .= "<li>{$link} {$redirect}</li>\n";
 569                 wfProfileOut( $fname );
 570                 return $out;
 571         }
 572
 573
 574         /**
 575          * Generates the power search box at bottom of [[Special:Search]]
 576          * @param $term string: search term
 577          * @return $out string: HTML form
 578          */
 579         function powerSearchBox( $term ) {
 580                 global $wgScript;
 581
 582                 $namespaces = '';
 583                 foreach( SearchEngine::searchableNamespaces() as $ns => $name ) {
 584                         $name = str_replace( '_', ' ', $name );
 585                         if( '' == $name ) {
 586                                 $name = wfMsg( 'blanknamespace' );
 587                         }
 588                         $namespaces .= Xml::openElement( 'span', array( 'style' => 'white-space: nowrap' ) ) .
 589                                         Xml::checkLabel( $name, "ns{$ns}", $name, in_array( $ns, $this->namespaces ) ) .
 590                                         Xml::closeElement( 'span' ) . "\n";
 591                 }
 592
 593                 $redirect = Xml::check( 'redirs', $this->searchRedirects, array( 'value' => '1' ) );
 594                 $searchField = Xml::input( 'search', 50, $term, array( 'type' => 'text', 'id' => 'powerSearchText' ) );
 595                 $searchButton = Xml::submitButton( wfMsg( 'powersearch' ), array( 'name' => 'fulltext' ) ) . "\n";
 596
 597                 $out = Xml::openElement( 'form', array( 'id' => 'powersearch', 'method' => 'get', 'action' => $wgScript ) ) .
 598                         Xml::openElement( 'fieldset' ) .
 599                         Xml::element( 'legend', array( ), wfMsg( 'powersearch-legend' ) ) .
 600                         Xml::hidden( 'title', 'Special:Search' ) .
 601                         wfMsgExt( 'powersearchtext', array( 'parse', 'replaceafter' ),
 602                                 $namespaces, $redirect, $searchField,
 603                                 '', '', '', '', '', # Dummy placeholders
 604                                 $searchButton ) .
 605                         Xml::closeElement( 'fieldset' ) .
 606                         Xml::closeElement( 'form' );
 607
 608                 return $out;
 609         }
 610
 611         function powerSearchFocus() {
 612                 return "<script type='text/javascript'>" .
 613                         "document.getElementById('powerSearchText').focus();" .
 614                         "</script>";
 615         }
 616
 617         function shortDialog($term) {
 618                 global $wgScript;
 619
 620                 $out  = Xml::openElement( 'form', array(
 621                         'id' => 'search',
 622                         'method' => 'get',
 623                         'action' => $wgScript
 624                 ));
 625                 $out .= Xml::hidden( 'title', 'Special:Search' );
 626                 $out .= Xml::input( 'search', 50, $term, array( 'type' => 'text', 'id' => 'searchText' ) ) . ' ';
 627                 foreach( SearchEngine::searchableNamespaces() as $ns => $name ) {
 628                         if( in_array( $ns, $this->namespaces ) ) {
 629                                 $out .= Xml::hidden( "ns{$ns}", '1' );
 630                         }
 631                 }
 632                 $out .= Xml::submitButton( wfMsg( 'searchbutton' ), array( 'name' => 'fulltext' ) );
 633                 $out .= Xml::closeElement( 'form' );
 634
 635                 return $out;
 636         }
 637 }