includes/specials/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  * @file
  23  * @ingroup SpecialPage
  24  */
  25
  26 /**
  27  * Entry point
  28  *
  29  * @param $par String: (default '')
  30  */
  31 function wfSpecialSearch( $par = '' ) {
  32         global $wgRequest, $wgUser;
  33
  34         $search = str_replace( "\n", " ", $wgRequest->getText( 'search', $par ) );
  35         $searchPage = new SpecialSearch( $wgRequest, $wgUser );
  36         if( $wgRequest->getVal( 'fulltext' )
  37                 || !is_null( $wgRequest->getVal( 'offset' ))
  38                 || !is_null( $wgRequest->getVal( 'searchx' ))) {
  39                 $searchPage->showResults( $search, 'search' );
  40         } else {
  41                 $searchPage->goResult( $search );
  42         }
  43 }
  44
  45 /**
  46  * implements Special:Search - Run text & title search and display the output
  47  * @ingroup SpecialPage
  48  */
  49 class SpecialSearch {
  50
  51         /**
  52          * Set up basic search parameters from the request and user settings.
  53          * Typically you'll pass $wgRequest and $wgUser.
  54          *
  55          * @param WebRequest $request
  56          * @param User $user
  57          * @public
  58          */
  59         function SpecialSearch( &$request, &$user ) {
  60                 list( $this->limit, $this->offset ) = $request->getLimitOffset( 20, 'searchlimit' );
  61
  62                 $this->namespaces = $this->powerSearch( $request );
  63                 if( empty( $this->namespaces ) ) {
  64                         $this->namespaces = SearchEngine::userNamespaces( $user );
  65                 }
  66
  67                 $this->searchRedirects = $request->getcheck( 'redirs' ) ? true : false;
  68         }
  69
  70         /**
  71          * If an exact title match can be found, jump straight ahead to it.
  72          * @param string $term
  73          * @public
  74          */
  75         function goResult( $term ) {
  76                 global $wgOut;
  77                 global $wgGoToEdit;
  78
  79                 $this->setupPage( $term );
  80
  81                 # Try to go to page as entered.
  82                 $t = Title::newFromText( $term );
  83
  84                 # If the string cannot be used to create a title
  85                 if( is_null( $t ) ){
  86                         return $this->showResults( $term );
  87                 }
  88
  89                 # If there's an exact or very near match, jump right there.
  90                 $t = SearchEngine::getNearMatch( $term );
  91                 if( !is_null( $t ) ) {
  92                         $wgOut->redirect( $t->getFullURL() );
  93                         return;
  94                 }
  95
  96                 # No match, generate an edit URL
  97                 $t = Title::newFromText( $term );
  98                 if( ! is_null( $t ) ) {
  99                         wfRunHooks( 'SpecialSearchNogomatch', array( &$t ) );
 100                         # If the feature is enabled, go straight to the edit page
 101                         if ( $wgGoToEdit ) {
 102                                 $wgOut->redirect( $t->getFullURL( 'action=edit' ) );
 103                                 return;
 104                         }
 105                 }
 106
 107                 $wgOut->wrapWikiMsg( "==$1==\n", 'notitlematches' );
 108                 if( $t->quickUserCan( 'create' ) && $t->quickUserCan( 'edit' ) ) {
 109                         $wgOut->addWikiMsg( 'noexactmatch', wfEscapeWikiText( $term ) );
 110                 } else {
 111                         $wgOut->addWikiMsg( 'noexactmatch-nocreate', wfEscapeWikiText( $term ) );
 112                 }
 113
 114                 return $this->showResults( $term );
 115         }
 116
 117         /**
 118          * @param string $term
 119          * @public
 120          */
 121         function showResults( $term ) {
 122                 $fname = 'SpecialSearch::showResults';
 123                 wfProfileIn( $fname );
 124                 global $wgOut, $wgUser;
 125                 $sk = $wgUser->getSkin();
 126
 127                 $this->setupPage( $term );
 128
 129                 $wgOut->addWikiMsg( 'searchresulttext' );
 130
 131                 if( '' === trim( $term ) ) {
 132                         // Empty query -- straight view of search form
 133                         $wgOut->setSubtitle( '' );
 134                         $wgOut->addHTML( $this->powerSearchBox( $term ) );
 135                         $wgOut->addHTML( $this->powerSearchFocus() );
 136                         wfProfileOut( $fname );
 137                         return;
 138                 }
 139
 140                 global $wgDisableTextSearch;
 141                 if ( $wgDisableTextSearch ) {
 142                         global $wgSearchForwardUrl;
 143                         if( $wgSearchForwardUrl ) {
 144                                 $url = str_replace( '$1', urlencode( $term ), $wgSearchForwardUrl );
 145                                 $wgOut->redirect( $url );
 146                                 return;
 147                         }
 148                         global $wgInputEncoding;
 149                         $wgOut->addHTML(
 150                                 Xml::openElement( 'fieldset' ) .
 151                                 Xml::element( 'legend', null, wfMsg( 'search-external' ) ) .
 152                                 Xml::element( 'p', array( 'class' => 'mw-searchdisabled' ), wfMsg( 'searchdisabled' ) ) .
 153                                 wfMsg( 'googlesearch',
 154                                         htmlspecialchars( $term ),
 155                                         htmlspecialchars( $wgInputEncoding ),
 156                                         htmlspecialchars( wfMsg( 'searchbutton' ) )
 157                                 ) .
 158                                 Xml::closeElement( 'fieldset' )
 159                         );
 160                         wfProfileOut( $fname );
 161                         return;
 162                 }
 163
 164                 $wgOut->addHTML( $this->shortDialog( $term ) );
 165
 166                 $search = SearchEngine::create();
 167                 $search->setLimitOffset( $this->limit, $this->offset );
 168                 $search->setNamespaces( $this->namespaces );
 169                 $search->showRedirects = $this->searchRedirects;
 170                 $rewritten = $search->replacePrefixes($term);
 171
 172                 $titleMatches = $search->searchTitle( $rewritten );
 173
 174                 // Sometimes the search engine knows there are too many hits
 175                 if ($titleMatches instanceof SearchResultTooMany) {
 176                         $wgOut->addWikiText( '==' . wfMsg( 'toomanymatches' ) . "==\n" );
 177                         $wgOut->addHTML( $this->powerSearchBox( $term ) );
 178                         $wgOut->addHTML( $this->powerSearchFocus() );
 179                         wfProfileOut( $fname );
 180                         return;
 181                 }
 182
 183                 $textMatches = $search->searchText( $rewritten );
 184
 185                 // did you mean... suggestions
 186                 if($textMatches && $textMatches->hasSuggestion()){
 187                         $st = SpecialPage::getTitleFor( 'Search' );
 188                         $stParams = wfArrayToCGI( array(
 189                                         'search'        => $textMatches->getSuggestionQuery(),
 190                                         'fulltext'      => wfMsg('search')),
 191                                         $this->powerSearchOptions());
 192
 193                         $suggestLink = '<a href="'.$st->escapeLocalURL($stParams).'">'.
 194                                         $textMatches->getSuggestionSnippet().'</a>';
 195
 196                         $wgOut->addHTML('<div class="searchdidyoumean">'.wfMsg('search-suggest',$suggestLink).'</div>');
 197                 }
 198
 199                 // show number of results
 200                 $num = ( $titleMatches ? $titleMatches->numRows() : 0 )
 201                         + ( $textMatches ? $textMatches->numRows() : 0);
 202                 $totalNum = 0;
 203                 if($titleMatches && !is_null($titleMatches->getTotalHits()))
 204                         $totalNum += $titleMatches->getTotalHits();
 205                 if($textMatches && !is_null($textMatches->getTotalHits()))
 206                         $totalNum += $textMatches->getTotalHits();
 207                 if ( $num > 0 ) {
 208                         if ( $totalNum > 0 ){
 209                                 $top = wfMsgExt('showingresultstotal', array( 'parseinline' ),
 210                                         $this->offset+1, $this->offset+$num, $totalNum );
 211                         } elseif ( $num >= $this->limit ) {
 212                                 $top = wfShowingResults( $this->offset, $this->limit );
 213                         } else {
 214                                 $top = wfShowingResultsNum( $this->offset, $this->limit, $num );
 215                         }
 216                         $wgOut->addHTML( "<p class='mw-search-numberresults'>{$top}</p>\n" );
 217                 }
 218
 219                 // prev/next links
 220                 if( $num || $this->offset ) {
 221                         $prevnext = wfViewPrevNext( $this->offset, $this->limit,
 222                                 SpecialPage::getTitleFor( 'Search' ),
 223                                 wfArrayToCGI(
 224                                         $this->powerSearchOptions(),
 225                                         array( 'search' => $term ) ),
 226                                         ($num < $this->limit) );
 227                         $wgOut->addHTML( "<p class='mw-search-pager-top'>{$prevnext}</p>\n" );
 228                         wfRunHooks( 'SpecialSearchResults', array( $term, &$titleMatches, &$textMatches ) );
 229                 } else {
 230                         wfRunHooks( 'SpecialSearchNoResults', array( $term ) );
 231                 }
 232
 233                 if( $titleMatches ) {
 234                         if( $titleMatches->numRows() ) {
 235                                 $wgOut->wrapWikiMsg( "==$1==\n", 'titlematches' );
 236                                 $wgOut->addHTML( $this->showMatches( $titleMatches ) );
 237                         }
 238                         $titleMatches->free();
 239                 }
 240
 241                 if( $textMatches ) {
 242                         // output appropriate heading
 243                         if( $textMatches->numRows() ) {
 244                                 if($titleMatches)
 245                                         $wgOut->wrapWikiMsg( "==$1==\n", 'textmatches' );
 246                                 else // if no title matches the heading is redundant
 247                                         $wgOut->addHTML("<hr/>");
 248                         } elseif( $num == 0 ) {
 249                                 # Don't show the 'no text matches' if we received title matches
 250                                 $wgOut->wrapWikiMsg( "==$1==\n", 'notextmatches' );
 251                         }
 252                         // show interwiki results if any
 253                         if( $textMatches->hasInterwikiResults() )
 254                                 $wgOut->addHtml( $this->showInterwiki( $textMatches->getInterwikiResults(), $term ));
 255                         // show results
 256                         if( $textMatches->numRows() )
 257                                 $wgOut->addHTML( $this->showMatches( $textMatches ) );
 258
 259                         $textMatches->free();
 260                 }
 261
 262                 if ( $num == 0 ) {
 263                         $wgOut->addWikiMsg( 'nonefound' );
 264                 }
 265                 if( $num || $this->offset ) {
 266                         $wgOut->addHTML( "<p class='mw-search-pager-bottom'>{$prevnext}</p>\n" );
 267                 }
 268                 $wgOut->addHTML( $this->powerSearchBox( $term ) );
 269                 wfProfileOut( $fname );
 270         }
 271
 272         #------------------------------------------------------------------
 273         # Private methods below this line
 274
 275         /**
 276          *
 277          */
 278         function setupPage( $term ) {
 279                 global $wgOut;
 280                 if( !empty( $term ) ){
 281                         $wgOut->setPageTitle( wfMsg( 'searchresults') );
 282                         $wgOut->setHTMLTitle( wfMsg( 'pagetitle', wfMsg( 'searchresults-title', $term) ) );
 283                 }
 284                 $subtitlemsg = ( Title::newFromText( $term ) ? 'searchsubtitle' : 'searchsubtitleinvalid' );
 285                 $wgOut->setSubtitle( $wgOut->parse( wfMsg( $subtitlemsg, wfEscapeWikiText($term) ) ) );
 286                 $wgOut->setArticleRelated( false );
 287                 $wgOut->setRobotPolicy( 'noindex,nofollow' );
 288         }
 289
 290         /**
 291          * Extract "power search" namespace settings from the request object,
 292          * returning a list of index numbers to search.
 293          *
 294          * @param WebRequest $request
 295          * @return array
 296          * @private
 297          */
 298         function powerSearch( &$request ) {
 299                 $arr = array();
 300                 foreach( SearchEngine::searchableNamespaces() as $ns => $name ) {
 301                         if( $request->getCheck( 'ns' . $ns ) ) {
 302                                 $arr[] = $ns;
 303                         }
 304                 }
 305                 return $arr;
 306         }
 307
 308         /**
 309          * Reconstruct the 'power search' options for links
 310          * @return array
 311          * @private
 312          */
 313         function powerSearchOptions() {
 314                 $opt = array();
 315                 foreach( $this->namespaces as $n ) {
 316                         $opt['ns' . $n] = 1;
 317                 }
 318                 $opt['redirs'] = $this->searchRedirects ? 1 : 0;
 319                 return $opt;
 320         }
 321
 322         /**
 323          * Show whole set of results
 324          *
 325          * @param SearchResultSet $matches
 326          */
 327         function showMatches( &$matches ) {
 328                 $fname = 'SpecialSearch::showMatches';
 329                 wfProfileIn( $fname );
 330
 331                 global $wgContLang;
 332                 $terms = $wgContLang->convertForSearchResult( $matches->termMatches() );
 333
 334                 $out = "";
 335
 336                 $infoLine = $matches->getInfo();
 337                 if( !is_null($infoLine) )
 338                         $out .= "\n<!-- {$infoLine} -->\n";
 339
 340
 341                 $off = $this->offset + 1;
 342                 $out .= "<ul class='mw-search-results'>\n";
 343
 344                 while( $result = $matches->next() ) {
 345                         $out .= $this->showHit( $result, $terms );
 346                 }
 347                 $out .= "</ul>\n";
 348
 349                 // convert the whole thing to desired language variant
 350                 global $wgContLang;
 351                 $out = $wgContLang->convert( $out );
 352                 wfProfileOut( $fname );
 353                 return $out;
 354         }
 355
 356         /**
 357          * Format a single hit result
 358          * @param SearchResult $result
 359          * @param array $terms terms to highlight
 360          */
 361         function showHit( $result, $terms ) {
 362                 $fname = 'SpecialSearch::showHit';
 363                 wfProfileIn( $fname );
 364                 global $wgUser, $wgContLang, $wgLang;
 365
 366                 if( $result->isBrokenTitle() ) {
 367                         wfProfileOut( $fname );
 368                         return "<!-- Broken link in search result -->\n";
 369                 }
 370
 371                 $t = $result->getTitle();
 372                 $sk = $wgUser->getSkin();
 373
 374                 $link = $sk->makeKnownLinkObj( $t, $result->getTitleSnippet($terms));
 375
 376                 //If page content is not readable, just return the title.
 377                 //This is not quite safe, but better than showing excerpts from non-readable pages
 378                 //Note that hiding the entry entirely would screw up paging.
 379                 if (!$t->userCanRead()) {
 380                         wfProfileOut( $fname );
 381                         return "<li>{$link}</li>\n";
 382                 }
 383
 384                 // If the page doesn't *exist*... our search index is out of date.
 385                 // The least confusing at this point is to drop the result.
 386                 // You may get less results, but... oh well. :P
 387                 if( $result->isMissingRevision() ) {
 388                         wfProfileOut( $fname );
 389                         return "<!-- missing page " .
 390                                 htmlspecialchars( $t->getPrefixedText() ) . "-->\n";
 391                 }
 392
 393                 // format redirects / relevant sections
 394                 $redirectTitle = $result->getRedirectTitle();
 395                 $redirectText = $result->getRedirectSnippet($terms);
 396                 $sectionTitle = $result->getSectionTitle();
 397                 $sectionText = $result->getSectionSnippet($terms);
 398                 $redirect = '';
 399                 if( !is_null($redirectTitle) )
 400                         $redirect = "<span class='searchalttitle'>"
 401                                 .wfMsg('search-redirect',$sk->makeKnownLinkObj( $redirectTitle, $redirectText))
 402                                 ."</span>";
 403                 $section = '';
 404                 if( !is_null($sectionTitle) )
 405                         $section = "<span class='searchalttitle'>"
 406                                 .wfMsg('search-section', $sk->makeKnownLinkObj( $sectionTitle, $sectionText))
 407                                 ."</span>";
 408
 409                 // format text extract
 410                 $extract = "<div class='searchresult'>".$result->getTextSnippet($terms)."</div>";
 411
 412                 // format score
 413                 if( is_null( $result->getScore() ) ) {
 414                         // Search engine doesn't report scoring info
 415                         $score = '';
 416                 } else {
 417                         $percent = sprintf( '%2.1f', $result->getScore() * 100 );
 418                         $score = wfMsg( 'search-result-score', $wgLang->formatNum( $percent ) )
 419                                 . ' - ';
 420                 }
 421
 422                 // format description
 423                 $byteSize = $result->getByteSize();
 424                 $wordCount = $result->getWordCount();
 425                 $timestamp = $result->getTimestamp();
 426                 $size = wfMsgExt( 'search-result-size', array( 'parsemag', 'escape' ),
 427                         $sk->formatSize( $byteSize ),
 428                         $wordCount );
 429                 $date = $wgLang->timeanddate( $timestamp );
 430
 431                 // link to related articles if supported
 432                 $related = '';
 433                 if( $result->hasRelated() ){
 434                         $st = SpecialPage::getTitleFor( 'Search' );
 435                         $stParams = wfArrayToCGI( $this->powerSearchOptions(),
 436                                 array('search'    => wfMsgForContent('searchrelated').':'.$t->getPrefixedText(),
 437                                       'fulltext'  => wfMsg('search') ));
 438
 439                         $related = ' -- <a href="'.$st->escapeLocalURL($stParams).'">'.
 440                                 wfMsg('search-relatedarticle').'</a>';
 441                 }
 442
 443                 // Include a thumbnail for media files...
 444                 if( $t->getNamespace() == NS_IMAGE ) {
 445                         $img = wfFindFile( $t );
 446                         if( $img ) {
 447                                 $thumb = $img->getThumbnail( 120, 120 );
 448                                 if( $thumb ) {
 449                                         $desc = $img->getShortDesc();
 450                                         wfProfileOut( $fname );
 451                                         // Ugly table. :D
 452                                         // Float doesn't seem to interact well with the bullets.
 453                                         // Table messes up vertical alignment of the bullet, but I'm
 454                                         // not sure what more I can do about that. :(
 455                                         return "<li>" .
 456                                                 '<table class="searchResultImage">' .
 457                                                 '<tr>' .
 458                                                 '<td width="120" align="center">' .
 459                                                 $thumb->toHtml( array( 'desc-link' => true ) ) .
 460                                                 '</td>' .
 461                                                 '<td valign="top">' .
 462                                                 $link .
 463                                                 $extract .
 464                                                 "<div class='mw-search-result-data'>{$score}{$desc} - {$date}{$related}</div>" .
 465                                                 '</td>' .
 466                                                 '</tr>' .
 467                                                 '</table>' .
 468                                                 "</li>\n";
 469                                 }
 470                         }
 471                 }
 472
 473                 wfProfileOut( $fname );
 474                 return "<li>{$link} {$redirect} {$section} {$extract}\n" .
 475                         "<div class='mw-search-result-data'>{$score}{$size} - {$date}{$related}</div>" .
 476                         "</li>\n";
 477
 478         }
 479
 480         /**
 481          * Show results from other wikis
 482          *
 483          * @param SearchResultSet $matches
 484          */
 485         function showInterwiki( &$matches, $query ) {
 486                 $fname = 'SpecialSearch::showInterwiki';
 487                 wfProfileIn( $fname );
 488
 489                 global $wgContLang;
 490                 $terms = $wgContLang->convertForSearchResult( $matches->termMatches() );
 491
 492                 $out = "<div id='mw-search-interwiki'><div id='mw-search-interwiki-caption'>".wfMsg('search-interwiki-caption')."</div>\n";
 493                 $off = $this->offset + 1;
 494                 $out .= "<ul start='{$off}' class='mw-search-iwresults'>\n";
 495
 496                 // work out custom project captions
 497                 $customCaptions = array();
 498                 $customLines = explode("\n",wfMsg('search-interwiki-custom')); // format per line <iwprefix>:<caption>
 499                 foreach($customLines as $line){
 500                         $parts = explode(":",$line,2);
 501                         if(count($parts) == 2) // validate line
 502                                 $customCaptions[$parts[0]] = $parts[1];
 503                 }
 504
 505
 506                 $prev = null;
 507                 while( $result = $matches->next() ) {
 508                         $out .= $this->showInterwikiHit( $result, $prev, $terms, $query, $customCaptions );
 509                         $prev = $result->getInterwikiPrefix();
 510                 }
 511                 // FIXME: should support paging in a non-confusing way (not sure how though, maybe via ajax)..
 512                 $out .= "</ul></div>\n";
 513
 514                 // convert the whole thing to desired language variant
 515                 global $wgContLang;
 516                 $out = $wgContLang->convert( $out );
 517                 wfProfileOut( $fname );
 518                 return $out;
 519         }
 520
 521         /**
 522          * Show single interwiki link
 523          *
 524          * @param SearchResult $result
 525          * @param string $lastInterwiki
 526          * @param array $terms
 527          * @param string $query
 528          * @param array $customCaptions iw prefix -> caption
 529          */
 530         function showInterwikiHit( $result, $lastInterwiki, $terms, $query, $customCaptions){
 531                 $fname = 'SpecialSearch::showInterwikiHit';
 532                 wfProfileIn( $fname );
 533                 global $wgUser, $wgContLang, $wgLang;
 534
 535                 if( $result->isBrokenTitle() ) {
 536                         wfProfileOut( $fname );
 537                         return "<!-- Broken link in search result -->\n";
 538                 }
 539
 540                 $t = $result->getTitle();
 541                 $sk = $wgUser->getSkin();
 542
 543                 $link = $sk->makeKnownLinkObj( $t, $result->getTitleSnippet($terms));
 544
 545                 // format redirect if any
 546                 $redirectTitle = $result->getRedirectTitle();
 547                 $redirectText = $result->getRedirectSnippet($terms);
 548                 $redirect = '';
 549                 if( !is_null($redirectTitle) )
 550                         $redirect = "<span class='searchalttitle'>"
 551                                 .wfMsg('search-redirect',$sk->makeKnownLinkObj( $redirectTitle, $redirectText))
 552                                 ."</span>";
 553
 554                 $out = "";
 555                 // display project name
 556                 if(is_null($lastInterwiki) || $lastInterwiki != $t->getInterwiki()){
 557                         if( key_exists($t->getInterwiki(),$customCaptions) )
 558                                 // captions from 'search-interwiki-custom'
 559                                 $caption = $customCaptions[$t->getInterwiki()];
 560                         else{
 561                                 // default is to show the hostname of the other wiki which might suck
 562                                 // if there are many wikis on one hostname
 563                                 $parsed = parse_url($t->getFullURL());
 564                                 $caption = wfMsg('search-interwiki-default', $parsed['host']);
 565                         }
 566                         // "more results" link (special page stuff could be localized, but we might not know target lang)
 567                         $searchTitle = Title::newFromText($t->getInterwiki().":Special:Search");
 568                         $searchLink = $sk->makeKnownLinkObj( $searchTitle, wfMsg('search-interwiki-more'),
 569                                 wfArrayToCGI(array('search' => $query, 'fulltext' => 'Search')));
 570                         $out .= "</ul><div class='mw-search-interwiki-project'><span class='mw-search-interwiki-more'>{$searchLink}</span>{$caption}</div>\n<ul>";
 571                 }
 572
 573                 $out .= "<li>{$link} {$redirect}</li>\n";
 574                 wfProfileOut( $fname );
 575                 return $out;
 576         }
 577
 578
 579         /**
 580          * Generates the power search box at bottom of [[Special:Search]]
 581          * @param $term string: search term
 582          * @return $out string: HTML form
 583          */
 584         function powerSearchBox( $term ) {
 585                 global $wgScript;
 586
 587                 $namespaces = '';
 588                 foreach( SearchEngine::searchableNamespaces() as $ns => $name ) {
 589                         $name = str_replace( '_', ' ', $name );
 590                         if( '' == $name ) {
 591                                 $name = wfMsg( 'blanknamespace' );
 592                         }
 593                         $namespaces .= Xml::openElement( 'span', array( 'style' => 'white-space: nowrap' ) ) .
 594                                         Xml::checkLabel( $name, "ns{$ns}", "mw-search-ns{$ns}", in_array( $ns, $this->namespaces ) ) .
 595                                         Xml::closeElement( 'span' ) . "\n";
 596                 }
 597
 598                 $redirect = Xml::check( 'redirs', $this->searchRedirects, array( 'value' => '1', 'id' => 'redirs' ) );
 599                 $redirectLabel = Xml::label( wfMsg( 'powersearch-redir' ), 'redirs' );
 600                 $searchField = Xml::input( 'search', 50, $term, array( 'type' => 'text', 'id' => 'powerSearchText' ) );
 601                 $searchButton = Xml::submitButton( wfMsg( 'powersearch' ), array( 'name' => 'fulltext' ) ) . "\n";
 602                 $searchTitle = SpecialPage::getTitleFor( 'Search' );
 603
 604                 $out = Xml::openElement( 'form', array( 'id' => 'powersearch', 'method' => 'get', 'action' => $wgScript ) ) .
 605                         Xml::fieldset( wfMsg( 'powersearch-legend' ),
 606                                 Xml::hidden( 'title', $searchTitle->getPrefixedText() ) .
 607                                 "<p>" .
 608                                 wfMsgExt( 'powersearch-ns', array( 'parseinline' ) ) .
 609                                 "<br />" .
 610                                 $namespaces .
 611                                 "</p>" .
 612                                 "<p>" .
 613                                 $redirect . " " . $redirectLabel .
 614                                 "</p>" .
 615                                 wfMsgExt( 'powersearch-field', array( 'parseinline' ) ) .
 616                                 "&nbsp;" .
 617                                 $searchField .
 618                                 "&nbsp;" .
 619                                 $searchButton ) .
 620                         "</form>";
 621
 622                 return $out;
 623         }
 624
 625         function powerSearchFocus() {
 626                 global $wgJsMimeType;
 627                 return "<script type=\"$wgJsMimeType\">" .
 628                         "hookEvent(\"load\", function(){" .
 629                                 "document.getElementById('powerSearchText').focus();" .
 630                         "});" .
 631                         "</script>";
 632         }
 633
 634         function shortDialog($term) {
 635                 global $wgScript;
 636
 637                 $out  = Xml::openElement( 'form', array(
 638                         'id' => 'search',
 639                         'method' => 'get',
 640                         'action' => $wgScript
 641                 ));
 642                 $searchTitle = SpecialPage::getTitleFor( 'Search' );
 643                 $out .= Xml::hidden( 'title', $searchTitle->getPrefixedText() );
 644                 $out .= Xml::input( 'search', 50, $term, array( 'type' => 'text', 'id' => 'searchText' ) ) . ' ';
 645                 foreach( SearchEngine::searchableNamespaces() as $ns => $name ) {
 646                         if( in_array( $ns, $this->namespaces ) ) {
 647                                 $out .= Xml::hidden( "ns{$ns}", '1' );
 648                         }
 649                 }
 650                 $out .= Xml::submitButton( wfMsg( 'searchbutton' ), array( 'name' => 'fulltext' ) );
 651                 $out .= Xml::closeElement( 'form' );
 652
 653                 return $out;
 654         }
 655 }