includes/widget/search/BasicSearchResultSetWidget.php

   1 <?php
   2
   3 namespace MediaWiki\Widget\Search;
   4
   5 use Message;
   6 use SearchResultSet;
   7 use SpecialSearch;
   8 use Status;
   9
  10 /**
  11  * Renders the search result area. Handles Title and Full-Text search results,
  12  * along with inline and sidebar secondary (interwiki) results.
  13  */
  14 class BasicSearchResultSetWidget {
  15         /** @var SpecialSearch */
  16         protected $specialPage;
  17         /** @var SearchResultWidget */
  18         protected $resultWidget;
  19         /** @var InterwikiSearchResultSetWidget */
  20         protected $sidebarWidget;
  21
  22         public function __construct(
  23                 SpecialSearch $specialPage,
  24                 SearchResultWidget $resultWidget,
  25                 SearchResultSetWidget $sidebarWidget
  26         ) {
  27                 $this->specialPage = $specialPage;
  28                 $this->resultWidget = $resultWidget;
  29                 $this->sidebarWidget = $sidebarWidget;
  30         }
  31
  32         /**
  33          * @param string $term The search term to highlight
  34          * @param int $offset The offset of the first result in the result set
  35          * @param SearchResultSet|null $titleResultSet Results of searching only page titles
  36          * @param SearchResultSet|null $textResultSet Results of general full text search.
  37          * @return string HTML
  38          */
  39         public function render(
  40                 $term,
  41                 $offset,
  42                 SearchResultSet $titleResultSet = null,
  43                 SearchResultSet $textResultSet = null
  44         ) {
  45                 global $wgContLang;
  46
  47                 $hasTitle = $titleResultSet ? $titleResultSet->numRows() > 0 : false;
  48                 $hasText = $textResultSet ? $textResultSet->numRows() > 0 : false;
  49                 $hasSecondary = $textResultSet
  50                         ? $textResultSet->hasInterwikiResults( SearchResultSet::SECONDARY_RESULTS )
  51                         : false;
  52                 $hasSecondaryInline = $textResultSet
  53                         ? $textResultSet->hasInterwikiResults( SearchResultSet::INLINE_RESULTS )
  54                         : false;
  55
  56                 if ( !$hasTitle && !$hasText && !$hasSecondary && !$hasSecondaryInline ) {
  57                         return '';
  58                 }
  59
  60                 $out = '';
  61                 if ( $hasTitle ) {
  62                         $out .= $this->header( $this->specialPage->msg( 'titlematches' ) )
  63                                 . $this->renderResultSet( $titleResultSet, $offset );
  64                 }
  65
  66                 if ( $hasText ) {
  67                         if ( $hasTitle ) {
  68                                 $out .= "<div class='mw-search-visualclear'></div>" .
  69                                         $this->header( $this->specialPage->msg( 'textmatches' ) );
  70                         }
  71                         $out .= $this->renderResultSet( $textResultSet, $offset );
  72                 }
  73
  74                 if ( $hasSecondaryInline ) {
  75                         $iwResults = $textResultSet->getInterwikiResults( SearchResultSet::INLINE_RESULTS );
  76                         foreach ( $iwResults as $interwiki => $results ) {
  77                                 if ( $results instanceof Status || $results->numRows() === 0 ) {
  78                                         // ignore bad interwikis for now
  79                                         continue;
  80                                 }
  81                                 $out .=
  82                                         "<p class='mw-search-interwiki-header mw-search-visualclear'>" .
  83                                                 $this->specialPage->msg( "search-interwiki-results-{$interwiki}" )->parse() .
  84                                         "</p>";
  85                                 $out .= $this->renderResultSet( $results, $offset );
  86                         }
  87                 }
  88
  89                 if ( $hasSecondary ) {
  90                         $out .= $this->sidebarWidget->render(
  91                                 $term,
  92                                 $textResultSet->getInterwikiResults( SearchResultSet::SECONDARY_RESULTS )
  93                         );
  94                 }
  95
  96                 // Convert the whole thing to desired language variant
  97                 // TODO: Move this up to Special:Search?
  98                 return $wgContLang->convert( $out );
  99         }
 100
 101         /**
 102          * Generate a headline for a section of the search results. In prior
 103          * implementations this was rendering wikitext of '==$1==', but seems
 104          * a waste to call the full parser to generate this tiny bit of html
 105          *
 106          * @param Message $msg i18n message to use as header
 107          * @return string HTML
 108          */
 109         protected function header( Message $msg ) {
 110                 return
 111                         "<h2>" .
 112                                 "<span class='mw-headline'>" . $msg->escaped() . "</span>" .
 113                         "</h2>";
 114         }
 115
 116         /**
 117          * @param SearchResultSet $resultSet The search results to render
 118          * @param int $offset Offset of the first result in $resultSet
 119          * @return string HTML
 120          */
 121         protected function renderResultSet( SearchResultSet $resultSet, $offset ) {
 122                 global $wgContLang;
 123
 124                 $terms = $wgContLang->convertForSearchResult( $resultSet->termMatches() );
 125
 126                 $hits = [];
 127                 $result = $resultSet->next();
 128                 while ( $result ) {
 129                         $hits[] .= $this->resultWidget->render( $result, $terms, $offset++ );
 130                         $result = $resultSet->next();
 131                 }
 132
 133                 return "<ul class='mw-search-results'>" . implode( '', $hits ) . "</ul>";
 134         }
 135 }