/**
  * Adds stable version tags to page when editing
  */
 public function addToEditView(EditPage $editPage)
 {
     global $wgParser;
     $reqUser = $this->getUser();
     $this->load();
     # Must be reviewable. UI may be limited to unobtrusive patrolling system.
     if (!$this->article->isReviewable()) {
         return true;
     }
     $items = array();
     # Show stabilization log
     $log = $this->stabilityLogNotice();
     if ($log) {
         $items[] = $log;
     }
     # Check the newest stable version
     $frev = $this->article->getStableRev();
     if ($frev) {
         $quality = $frev->getQuality();
         # Find out revision id of base version
         $latestId = $this->article->getLatest();
         $revId = $editPage->oldid ? $editPage->oldid : $latestId;
         # Let users know if their edit will have to be reviewed.
         # Note: if the log excerpt was shown then this is redundant.
         if (!$log && $this->editWillRequireReview($editPage)) {
             $items[] = wfMsgExt('revreview-editnotice', 'parseinline');
         }
         # Add a notice if there are pending edits...
         if ($this->article->revsArePending()) {
             $revsSince = $this->article->getPendingRevCount();
             $items[] = FlaggedRevsXML::pendingEditNotice($this->article, $frev, $revsSince);
         }
         # Show diff to stable, to make things less confusing.
         # This can be disabled via user preferences and other conditions...
         if ($frev->getRevId() < $latestId && $reqUser->getBoolOption('flaggedrevseditdiffs') && $revId == $latestId && $editPage->section != 'new' && $editPage->formtype != 'diff') {
             # Left diff side...
             $leftNote = $quality ? 'revreview-hist-quality' : 'revreview-hist-basic';
             $lClass = FlaggedRevsXML::getQualityColor((int) $quality);
             $leftNote = "<span class='{$lClass}'>[" . wfMsgHtml($leftNote) . "]</span>";
             # Right diff side...
             $rClass = FlaggedRevsXML::getQualityColor(false);
             $rightNote = "<span class='{$rClass}'>[" . wfMsgHtml('revreview-hist-pending') . "]</span>";
             # Get the stable version source
             $text = $frev->getRevText();
             # Are we editing a section?
             $section = $editPage->section == "" ? false : intval($editPage->section);
             if ($section !== false) {
                 $text = $wgParser->getSection($text, $section);
             }
             if ($text !== false && strcmp($text, $editPage->textbox1) !== 0) {
                 $diffEngine = new DifferenceEngine($this->article->getTitle());
                 $diffBody = $diffEngine->generateDiffBody($text, $editPage->textbox1);
                 $diffHtml = wfMsgExt('review-edit-diff', 'parseinline') . ' ' . FlaggedRevsXML::diffToggle() . "<div id='mw-fr-stablediff'>" . self::getFormattedDiff($diffBody, '', $leftNote, $rightNote) . "</div>\n";
                 $items[] = $diffHtml;
                 $diffEngine->showDiffStyle();
                 // add CSS
             }
         }
         # Output items
         if (count($items)) {
             $html = "<table class='flaggedrevs_editnotice plainlinks'>";
             foreach ($items as $item) {
                 $html .= '<tr><td>' . $item . '</td></tr>';
             }
             $html .= '</table>';
             $this->out->addHTML($html);
         }
     }
     return true;
 }