PHP Linker::revComment方法代码示例

 function formatRow($row)
 {
     wfProfileIn(__METHOD__);
     global $wgLang, $wgUser, $wgContLang;
     $rev = new Revision($row);
     $page = Title::makeTitle($row->page_namespace, $row->page_title);
     $link = Linker::link($page);
     $difftext = $topmarktext = '';
     if ($row->rev_id == $row->page_latest) {
         if (!$row->page_is_new) {
             $difftext .= '(' . Linker::link($page, $this->messages['diff'], array(), 'diff=0') . ')';
         } else {
             $difftext .= $this->messages['newarticle'];
         }
     }
     if ($rev->userCan(Revision::DELETED_TEXT)) {
         $difftext = '(' . Linker::link($page, $this->messages['diff'], array(), 'diff=prev&oldid=' . $row->rev_id) . ')';
     } else {
         $difftext = '(' . $this->messages['diff'] . ')';
     }
     $comment = $wgContLang->getDirMark() . Linker::revComment($rev);
     $d = $wgLang->timeanddate(wfTimestamp(TS_MW, $row->rev_timestamp), true);
     if ($this->target == 'newbies') {
         $userlink = ' . . ' . Linker::userLink($row->rev_user, $row->rev_user_text);
         $userlink .= ' (' . Linker::userTalkLink($row->rev_user, $row->rev_user_text) . ') ';
     } else {
         $userlink = '';
     }
     if ($rev->isDeleted(Revision::DELETED_TEXT)) {
         $d = '<span class="history-deleted">' . $d . '</span>';
     }
     if ($row->rev_minor_edit) {
         $mflag = '<span class="minor">' . $this->messages['minoreditletter'] . '</span> ';
     } else {
         $mflag = '';
     }
     $ret = "{$d} {$difftext} {$mflag} {$link}{$userlink}{$comment} {$topmarktext}";
     if ($rev->isDeleted(Revision::DELETED_TEXT)) {
         $ret .= ' ' . wfMsgHtml('deletedrev');
     }
     $ret = "<li>{$ret}</li>\n";
     wfProfileOut(__METHOD__);
     return $ret;
 }

 /**
  * @return string A HTML <li> element representing this revision, showing
  * change tags and everything
  */
 public function getHTML()
 {
     $difflink = $this->list->msg('parentheses')->rawParams($this->getDiffLink())->escaped();
     $revlink = $this->getRevisionLink();
     $userlink = Linker::revUserLink($this->revision);
     $comment = Linker::revComment($this->revision);
     if ($this->isDeleted()) {
         $revlink = "<span class=\"history-deleted\">{$revlink}</span>";
     }
     $content = "{$difflink} {$revlink} {$userlink} {$comment}";
     $attribs = array();
     $tags = $this->getTags();
     if ($tags) {
         list($tagSummary, $classes) = ChangeTags::formatSummaryRow($tags, 'edittags');
         $content .= " {$tagSummary}";
         $attribs['class'] = implode(' ', $classes);
     }
     return Xml::tags('li', $attribs, $content);
 }

 /**
  * Generate the navigation links when browsing through an article revisions
  * It shows the information as:
  *   Revision as of \<date\>; view current revision
  *   \<- Previous version | Next Version -\>
  *
  * @param int $oldid Revision ID of this article revision
  */
 public function setOldSubtitle($oldid = 0)
 {
     if (!Hooks::run('DisplayOldSubtitle', array(&$this, &$oldid))) {
         return;
     }
     $context = $this->getContext();
     $unhide = $context->getRequest()->getInt('unhide') == 1;
     # Cascade unhide param in links for easy deletion browsing
     $extraParams = array();
     if ($unhide) {
         $extraParams['unhide'] = 1;
     }
     if ($this->mRevision && $this->mRevision->getId() === $oldid) {
         $revision = $this->mRevision;
     } else {
         $revision = Revision::newFromId($oldid);
     }
     $timestamp = $revision->getTimestamp();
     $current = $oldid == $this->mPage->getLatest();
     $language = $context->getLanguage();
     $user = $context->getUser();
     $td = $language->userTimeAndDate($timestamp, $user);
     $tddate = $language->userDate($timestamp, $user);
     $tdtime = $language->userTime($timestamp, $user);
     # Show user links if allowed to see them. If hidden, then show them only if requested...
     $userlinks = Linker::revUserTools($revision, !$unhide);
     $infomsg = $current && !$context->msg('revision-info-current')->isDisabled() ? 'revision-info-current' : 'revision-info';
     $outputPage = $context->getOutput();
     $outputPage->addSubtitle("<div id=\"mw-{$infomsg}\">" . $context->msg($infomsg, $td)->rawParams($userlinks)->params($revision->getID(), $tddate, $tdtime, $revision->getUserText())->rawParams(Linker::revComment($revision, true, true))->parse() . "</div>");
     $lnk = $current ? $context->msg('currentrevisionlink')->escaped() : Linker::linkKnown($this->getTitle(), $context->msg('currentrevisionlink')->escaped(), array(), $extraParams);
     $curdiff = $current ? $context->msg('diff')->escaped() : Linker::linkKnown($this->getTitle(), $context->msg('diff')->escaped(), array(), array('diff' => 'cur', 'oldid' => $oldid) + $extraParams);
     $prev = $this->getTitle()->getPreviousRevisionID($oldid);
     $prevlink = $prev ? Linker::linkKnown($this->getTitle(), $context->msg('previousrevision')->escaped(), array(), array('direction' => 'prev', 'oldid' => $oldid) + $extraParams) : $context->msg('previousrevision')->escaped();
     $prevdiff = $prev ? Linker::linkKnown($this->getTitle(), $context->msg('diff')->escaped(), array(), array('diff' => 'prev', 'oldid' => $oldid) + $extraParams) : $context->msg('diff')->escaped();
     $nextlink = $current ? $context->msg('nextrevision')->escaped() : Linker::linkKnown($this->getTitle(), $context->msg('nextrevision')->escaped(), array(), array('direction' => 'next', 'oldid' => $oldid) + $extraParams);
     $nextdiff = $current ? $context->msg('diff')->escaped() : Linker::linkKnown($this->getTitle(), $context->msg('diff')->escaped(), array(), array('diff' => 'next', 'oldid' => $oldid) + $extraParams);
     $cdel = Linker::getRevDeleteLink($user, $revision, $this->getTitle());
     if ($cdel !== '') {
         $cdel .= ' ';
     }
     $outputPage->addSubtitle("<div id=\"mw-revision-nav\">" . $cdel . $context->msg('revision-nav')->rawParams($prevdiff, $prevlink, $lnk, $curdiff, $nextlink, $nextdiff)->escaped() . "</div>");
 }

 /**
  * Returns a row from the history printout.
  *
  * @todo document some more, and maybe clean up the code (some params redundant?)
  *
  * @param stdClass $row The database row corresponding to the previous line.
  * @param mixed $next The database row corresponding to the next line
  *   (chronologically previous)
  * @param bool|string $notificationtimestamp
  * @param bool $latest Whether this row corresponds to the page's latest revision.
  * @param bool $firstInList Whether this row corresponds to the first
  *   displayed on this history page.
  * @return string HTML output for the row
  */
 function historyLine($row, $next, $notificationtimestamp = false, $latest = false, $firstInList = false)
 {
     $rev = new Revision($row);
     $rev->setTitle($this->getTitle());
     if (is_object($next)) {
         $prevRev = new Revision($next);
         $prevRev->setTitle($this->getTitle());
     } else {
         $prevRev = null;
     }
     $curlink = $this->curLink($rev, $latest);
     $lastlink = $this->lastLink($rev, $next);
     $curLastlinks = $curlink . $this->historyPage->message['pipe-separator'] . $lastlink;
     $histLinks = Html::rawElement('span', array('class' => 'mw-history-histlinks'), $this->msg('parentheses')->rawParams($curLastlinks)->escaped());
     $diffButtons = $this->diffButtons($rev, $firstInList);
     $s = $histLinks . $diffButtons;
     $link = $this->revLink($rev);
     $classes = array();
     $del = '';
     $user = $this->getUser();
     // Show checkboxes for each revision
     if ($user->isAllowed('deleterevision')) {
         $this->preventClickjacking();
         // If revision was hidden from sysops, disable the checkbox
         if (!$rev->userCan(Revision::DELETED_RESTRICTED, $user)) {
             $del = Xml::check('deleterevisions', false, array('disabled' => 'disabled'));
             // Otherwise, enable the checkbox...
         } else {
             $del = Xml::check('showhiderevisions', false, array('name' => 'ids[' . $rev->getId() . ']'));
         }
         // User can only view deleted revisions...
     } elseif ($rev->getVisibility() && $user->isAllowed('deletedhistory')) {
         // If revision was hidden from sysops, disable the link
         if (!$rev->userCan(Revision::DELETED_RESTRICTED, $user)) {
             $del = Linker::revDeleteLinkDisabled(false);
             // Otherwise, show the link...
         } else {
             $query = array('type' => 'revision', 'target' => $this->getTitle()->getPrefixedDBkey(), 'ids' => $rev->getId());
             $del .= Linker::revDeleteLink($query, $rev->isDeleted(Revision::DELETED_RESTRICTED), false);
         }
     }
     if ($del) {
         $s .= " {$del} ";
     }
     $lang = $this->getLanguage();
     $dirmark = $lang->getDirMark();
     $s .= " {$link}";
     $s .= $dirmark;
     $s .= " <span class='history-user'>" . Linker::revUserTools($rev, true) . "</span>";
     $s .= $dirmark;
     if ($rev->isMinor()) {
         $s .= ' ' . ChangesList::flag('minor');
     }
     # Sometimes rev_len isn't populated
     if ($rev->getSize() !== null) {
         # Size is always public data
         $prevSize = isset($this->parentLens[$row->rev_parent_id]) ? $this->parentLens[$row->rev_parent_id] : 0;
         $sDiff = ChangesList::showCharacterDifference($prevSize, $rev->getSize());
         $fSize = Linker::formatRevisionSize($rev->getSize());
         $s .= ' <span class="mw-changeslist-separator">. .</span> ' . "{$fSize} {$sDiff}";
     }
     # Text following the character difference is added just before running hooks
     $s2 = Linker::revComment($rev, false, true);
     if ($notificationtimestamp && $row->rev_timestamp >= $notificationtimestamp) {
         $s2 .= ' <span class="updatedmarker">' . $this->msg('updatedmarker')->escaped() . '</span>';
         $classes[] = 'mw-history-line-updated';
     }
     $tools = array();
     # Rollback and undo links
     if ($prevRev && $this->getTitle()->quickUserCan('edit', $user)) {
         if ($latest && $this->getTitle()->quickUserCan('rollback', $user)) {
             // Get a rollback link without the brackets
             $rollbackLink = Linker::generateRollback($rev, $this->getContext(), array('verify', 'noBrackets'));
             if ($rollbackLink) {
                 $this->preventClickjacking();
                 $tools[] = $rollbackLink;
             }
         }
         if (!$rev->isDeleted(Revision::DELETED_TEXT) && !$prevRev->isDeleted(Revision::DELETED_TEXT)) {
             # Create undo tooltip for the first (=latest) line only
             $undoTooltip = $latest ? array('title' => $this->msg('tooltip-undo')->text()) : array();
             $undolink = Linker::linkKnown($this->getTitle(), $this->msg('editundo')->escaped(), $undoTooltip, array('action' => 'edit', 'undoafter' => $prevRev->getId(), 'undo' => $rev->getId()));
             $tools[] = "<span class=\"mw-history-undo\">{$undolink}</span>";
         }
     }
     // Allow extension to add their own links here
//.........这里部分代码省略.........

 /**
  * Generates each row in the contributions list.
  *
  * Contributions which are marked "top" are currently on top of the history.
  * For these contributions, a [rollback] link is shown for users with roll-
  * back privileges. The rollback link restores the most recent version that
  * was not written by the target user.
  *
  * @todo This would probably look a lot nicer in a table.
  * @param $row
  * @return string
  */
 function formatRow($row)
 {
     wfProfileIn(__METHOD__);
     $ret = '';
     $classes = array();
     /*
      * There may be more than just revision rows. To make sure that we'll only be processing
      * revisions here, let's _try_ to build a revision out of our row (without displaying
      * notices though) and then trying to grab data from the built object. If we succeed,
      * we're definitely dealing with revision data and we may proceed, if not, we'll leave it
      * to extensions to subscribe to the hook to parse the row.
      */
     wfSuppressWarnings();
     $rev = new Revision($row);
     $validRevision = $rev->getParentId() !== null;
     wfRestoreWarnings();
     if ($validRevision) {
         $classes = array();
         $page = Title::newFromRow($row);
         $link = Linker::link($page, htmlspecialchars($page->getPrefixedText()), array('class' => 'mw-contributions-title'), $page->isRedirect() ? array('redirect' => 'no') : array());
         # Mark current revisions
         $topmarktext = '';
         $user = $this->getUser();
         if ($row->rev_id == $row->page_latest) {
             $topmarktext .= '<span class="mw-uctop">' . $this->messages['uctop'] . '</span>';
             # Add rollback link
             if (!$row->page_is_new && $page->quickUserCan('rollback', $user) && $page->quickUserCan('edit', $user)) {
                 $this->preventClickjacking();
                 $topmarktext .= ' ' . Linker::generateRollback($rev, $this->getContext());
             }
         }
         # Is there a visible previous revision?
         if ($rev->userCan(Revision::DELETED_TEXT, $user) && $rev->getParentId() !== 0) {
             $difftext = Linker::linkKnown($page, $this->messages['diff'], array(), array('diff' => 'prev', 'oldid' => $row->rev_id));
         } else {
             $difftext = $this->messages['diff'];
         }
         $histlink = Linker::linkKnown($page, $this->messages['hist'], array(), array('action' => 'history'));
         if ($row->rev_parent_id === null) {
             // For some reason rev_parent_id isn't populated for this row.
             // Its rumoured this is true on wikipedia for some revisions (bug 34922).
             // Next best thing is to have the total number of bytes.
             $chardiff = ' <span class="mw-changeslist-separator">. .</span> ' . Linker::formatRevisionSize($row->rev_len) . ' <span class="mw-changeslist-separator">. .</span> ';
         } else {
             $parentLen = isset($this->mParentLens[$row->rev_parent_id]) ? $this->mParentLens[$row->rev_parent_id] : 0;
             $chardiff = ' <span class="mw-changeslist-separator">. .</span> ' . ChangesList::showCharacterDifference($parentLen, $row->rev_len, $this->getContext()) . ' <span class="mw-changeslist-separator">. .</span> ';
         }
         $lang = $this->getLanguage();
         $comment = $lang->getDirMark() . Linker::revComment($rev, false, true);
         $date = $lang->userTimeAndDate($row->rev_timestamp, $user);
         if ($rev->userCan(Revision::DELETED_TEXT, $user)) {
             $d = Linker::linkKnown($page, htmlspecialchars($date), array('class' => 'mw-changeslist-date'), array('oldid' => intval($row->rev_id)));
         } else {
             $d = htmlspecialchars($date);
         }
         if ($rev->isDeleted(Revision::DELETED_TEXT)) {
             $d = '<span class="history-deleted">' . $d . '</span>';
         }
         # Show user names for /newbies as there may be different users.
         # Note that we already excluded rows with hidden user names.
         if ($this->contribs == 'newbie') {
             $userlink = ' . . ' . Linker::userLink($rev->getUser(), $rev->getUserText());
             $userlink .= ' ' . $this->msg('parentheses')->rawParams(Linker::userTalkLink($rev->getUser(), $rev->getUserText()))->escaped() . ' ';
         } else {
             $userlink = '';
         }
         if ($rev->getParentId() === 0) {
             $nflag = ChangesList::flag('newpage');
         } else {
             $nflag = '';
         }
         if ($rev->isMinor()) {
             $mflag = ChangesList::flag('minor');
         } else {
             $mflag = '';
         }
         $del = Linker::getRevDeleteLink($user, $rev, $page);
         if ($del !== '') {
             $del .= ' ';
         }
         $diffHistLinks = $this->msg('parentheses')->rawParams($difftext . $this->messages['pipe-separator'] . $histlink)->escaped();
         $ret = "{$del}{$d} {$diffHistLinks}{$chardiff}{$nflag}{$mflag} {$link}{$userlink} {$comment} {$topmarktext}";
         # Denote if username is redacted for this edit
         if ($rev->isDeleted(Revision::DELETED_USER)) {
             $ret .= " <strong>" . $this->msg('rev-deleted-user-contribs')->escaped() . "</strong>";
         }
         # Tags, if any.
         list($tagSummary, $newClasses) = ChangeTags::formatSummaryRow($row->ts_tags, 'contributions');
//.........这里部分代码省略.........

 /**
  * Format a row, providing the timestamp, links to the page/history, size, user links, and a comment
  *
  * @param $result Result row
  * @return String
  */
 public function formatRow($result)
 {
     $title = Title::newFromRow($result);
     # Revision deletion works on revisions, so we should cast one
     $row = array('comment' => $result->rc_comment, 'deleted' => $result->rc_deleted, 'user_text' => $result->rc_user_text, 'user' => $result->rc_user);
     $rev = new Revision($row);
     $rev->setTitle($title);
     $classes = array();
     $lang = $this->getLanguage();
     $dm = $lang->getDirMark();
     $spanTime = Html::element('span', array('class' => 'mw-newpages-time'), $lang->userTimeAndDate($result->rc_timestamp, $this->getUser()));
     $time = Linker::linkKnown($title, $spanTime, array(), array('oldid' => $result->rc_this_oldid), array());
     $query = array('redirect' => 'no');
     if ($this->patrollable($result)) {
         $query['rcid'] = $result->rc_id;
     }
     // Linker::linkKnown() uses 'known' and 'noclasses' options. This breaks the colouration for stubs.
     $plink = Linker::link($title, null, array('class' => 'mw-newpages-pagename'), $query, array('known'));
     $histLink = Linker::linkKnown($title, $this->msg('hist')->escaped(), array(), array('action' => 'history'));
     $hist = Html::rawElement('span', array('class' => 'mw-newpages-history'), $this->msg('parentheses')->rawParams($histLink)->escaped());
     $length = Html::element('span', array('class' => 'mw-newpages-length'), $this->msg('brackets')->params($this->msg('nbytes')->numParams($result->length)->text()));
     $ulink = Linker::revUserTools($rev);
     $comment = Linker::revComment($rev);
     if ($this->patrollable($result)) {
         $classes[] = 'not-patrolled';
     }
     # Add a class for zero byte pages
     if ($result->length == 0) {
         $classes[] = 'mw-newpages-zero-byte-page';
     }
     # Tags, if any.
     if (isset($result->ts_tags)) {
         list($tagDisplay, $newClasses) = ChangeTags::formatSummaryRow($result->ts_tags, 'newpages');
         $classes = array_merge($classes, $newClasses);
     } else {
         $tagDisplay = '';
     }
     $css = count($classes) ? ' class="' . implode(' ', $classes) . '"' : '';
     # Display the old title if the namespace/title has been changed
     $oldTitleText = '';
     $oldTitle = Title::makeTitle($result->rc_namespace, $result->rc_title);
     if (!$title->equals($oldTitle)) {
         $oldTitleText = $this->msg('rc-old-title')->params($oldTitle->getPrefixedText())->escaped();
     }
     return "<li{$css}>{$time} {$dm}{$plink} {$hist} {$dm}{$length} {$dm}{$ulink} {$comment} {$tagDisplay} {$oldTitleText}</li>\n";
 }

 public function showDiffPage($diffOnly = false)
 {
     # Allow frames except in certain special cases
     $out = $this->getOutput();
     $out->allowClickjacking();
     $out->setRobotPolicy('noindex,nofollow');
     if (!$this->loadRevisionData()) {
         $this->showMissingRevision();
         return;
     }
     $user = $this->getUser();
     $permErrors = $this->mNewPage->getUserPermissionsErrors('read', $user);
     if ($this->mOldPage) {
         # mOldPage might not be set, see below.
         $permErrors = wfMergeErrorArrays($permErrors, $this->mOldPage->getUserPermissionsErrors('read', $user));
     }
     if (count($permErrors)) {
         throw new PermissionsError('read', $permErrors);
     }
     $rollback = '';
     $query = array();
     # Carry over 'diffonly' param via navigation links
     if ($diffOnly != $user->getBoolOption('diffonly')) {
         $query['diffonly'] = $diffOnly;
     }
     # Cascade unhide param in links for easy deletion browsing
     if ($this->unhide) {
         $query['unhide'] = 1;
     }
     # Check if one of the revisions is deleted/suppressed
     $deleted = $suppressed = false;
     $allowed = $this->mNewRev->userCan(Revision::DELETED_TEXT, $user);
     $revisionTools = array();
     # mOldRev is false if the difference engine is called with a "vague" query for
     # a diff between a version V and its previous version V' AND the version V
     # is the first version of that article. In that case, V' does not exist.
     if ($this->mOldRev === false) {
         $out->setPageTitle($this->msg('difference-title', $this->mNewPage->getPrefixedText()));
         $samePage = true;
         $oldHeader = '';
     } else {
         Hooks::run('DiffViewHeader', array($this, $this->mOldRev, $this->mNewRev));
         if ($this->mNewPage->equals($this->mOldPage)) {
             $out->setPageTitle($this->msg('difference-title', $this->mNewPage->getPrefixedText()));
             $samePage = true;
         } else {
             $out->setPageTitle($this->msg('difference-title-multipage', $this->mOldPage->getPrefixedText(), $this->mNewPage->getPrefixedText()));
             $out->addSubtitle($this->msg('difference-multipage'));
             $samePage = false;
         }
         if ($samePage && $this->mNewPage->quickUserCan('edit', $user)) {
             if ($this->mNewRev->isCurrent() && $this->mNewPage->userCan('rollback', $user)) {
                 $rollbackLink = Linker::generateRollback($this->mNewRev, $this->getContext());
                 if ($rollbackLink) {
                     $out->preventClickjacking();
                     $rollback = '   ' . $rollbackLink;
                 }
             }
             if (!$this->mOldRev->isDeleted(Revision::DELETED_TEXT) && !$this->mNewRev->isDeleted(Revision::DELETED_TEXT)) {
                 $undoLink = Html::element('a', array('href' => $this->mNewPage->getLocalURL(array('action' => 'edit', 'undoafter' => $this->mOldid, 'undo' => $this->mNewid)), 'title' => Linker::titleAttrib('undo')), $this->msg('editundo')->text());
                 $revisionTools['mw-diff-undo'] = $undoLink;
             }
         }
         # Make "previous revision link"
         if ($samePage && $this->mOldRev->getPrevious()) {
             $prevlink = Linker::linkKnown($this->mOldPage, $this->msg('previousdiff')->escaped(), array('id' => 'differences-prevlink'), array('diff' => 'prev', 'oldid' => $this->mOldid) + $query);
         } else {
             $prevlink = ' ';
         }
         if ($this->mOldRev->isMinor()) {
             $oldminor = ChangesList::flag('minor');
         } else {
             $oldminor = '';
         }
         $ldel = $this->revisionDeleteLink($this->mOldRev);
         $oldRevisionHeader = $this->getRevisionHeader($this->mOldRev, 'complete');
         $oldChangeTags = ChangeTags::formatSummaryRow($this->mOldTags, 'diff');
         $oldHeader = '<div id="mw-diff-otitle1"><strong>' . $oldRevisionHeader . '</strong></div>' . '<div id="mw-diff-otitle2">' . Linker::revUserTools($this->mOldRev, !$this->unhide) . '</div>' . '<div id="mw-diff-otitle3">' . $oldminor . Linker::revComment($this->mOldRev, !$diffOnly, !$this->unhide) . $ldel . '</div>' . '<div id="mw-diff-otitle5">' . $oldChangeTags[0] . '</div>' . '<div id="mw-diff-otitle4">' . $prevlink . '</div>';
         if ($this->mOldRev->isDeleted(Revision::DELETED_TEXT)) {
             $deleted = true;
             // old revisions text is hidden
             if ($this->mOldRev->isDeleted(Revision::DELETED_RESTRICTED)) {
                 $suppressed = true;
                 // also suppressed
             }
         }
         # Check if this user can see the revisions
         if (!$this->mOldRev->userCan(Revision::DELETED_TEXT, $user)) {
             $allowed = false;
         }
     }
     # Make "next revision link"
     # Skip next link on the top revision
     if ($samePage && !$this->mNewRev->isCurrent()) {
         $nextlink = Linker::linkKnown($this->mNewPage, $this->msg('nextdiff')->escaped(), array('id' => 'differences-nextlink'), array('diff' => 'next', 'oldid' => $this->mNewid) + $query);
     } else {
         $nextlink = '&#160;';
     }
     if ($this->mNewRev->isMinor()) {
         $newminor = ChangesList::flag('minor');
//.........这里部分代码省略.........

 /**
  * Generates each row in the contributions list.
  *
  * Contributions which are marked "top" are currently on top of the history.
  * For these contributions, a [rollback] link is shown for users with roll-
  * back privileges. The rollback link restores the most recent version that
  * was not written by the target user.
  *
  * @todo This would probably look a lot nicer in a table.
  * @param object $row
  * @return string
  */
 function formatRow($row)
 {
     $ret = '';
     $classes = [];
     /*
      * There may be more than just revision rows. To make sure that we'll only be processing
      * revisions here, let's _try_ to build a revision out of our row (without displaying
      * notices though) and then trying to grab data from the built object. If we succeed,
      * we're definitely dealing with revision data and we may proceed, if not, we'll leave it
      * to extensions to subscribe to the hook to parse the row.
      */
     MediaWiki\suppressWarnings();
     try {
         $rev = new Revision($row);
         $validRevision = (bool) $rev->getId();
     } catch (Exception $e) {
         $validRevision = false;
     }
     MediaWiki\restoreWarnings();
     if ($validRevision) {
         $classes = [];
         $page = Title::newFromRow($row);
         $link = Linker::link($page, htmlspecialchars($page->getPrefixedText()), ['class' => 'mw-contributions-title'], $page->isRedirect() ? ['redirect' => 'no'] : []);
         # Mark current revisions
         $topmarktext = '';
         $user = $this->getUser();
         if ($row->rev_id === $row->page_latest) {
             $topmarktext .= '<span class="mw-uctop">' . $this->messages['uctop'] . '</span>';
             $classes[] = 'mw-contributions-current';
             # Add rollback link
             if (!$row->page_is_new && $page->quickUserCan('rollback', $user) && $page->quickUserCan('edit', $user)) {
                 $this->preventClickjacking();
                 $topmarktext .= ' ' . Linker::generateRollback($rev, $this->getContext());
             }
         }
         # Is there a visible previous revision?
         if ($rev->userCan(Revision::DELETED_TEXT, $user) && $rev->getParentId() !== 0) {
             $difftext = Linker::linkKnown($page, $this->messages['diff'], [], ['diff' => 'prev', 'oldid' => $row->rev_id]);
         } else {
             $difftext = $this->messages['diff'];
         }
         $histlink = Linker::linkKnown($page, $this->messages['hist'], [], ['action' => 'history']);
         if ($row->rev_parent_id === null) {
             // For some reason rev_parent_id isn't populated for this row.
             // Its rumoured this is true on wikipedia for some revisions (bug 34922).
             // Next best thing is to have the total number of bytes.
             $chardiff = ' <span class="mw-changeslist-separator">. .</span> ';
             $chardiff .= Linker::formatRevisionSize($row->rev_len);
             $chardiff .= ' <span class="mw-changeslist-separator">. .</span> ';
         } else {
             $parentLen = 0;
             if (isset($this->mParentLens[$row->rev_parent_id])) {
                 $parentLen = $this->mParentLens[$row->rev_parent_id];
             }
             $chardiff = ' <span class="mw-changeslist-separator">. .</span> ';
             $chardiff .= ChangesList::showCharacterDifference($parentLen, $row->rev_len, $this->getContext());
             $chardiff .= ' <span class="mw-changeslist-separator">. .</span> ';
         }
         $lang = $this->getLanguage();
         $comment = $lang->getDirMark() . Linker::revComment($rev, false, true);
         $date = $lang->userTimeAndDate($row->rev_timestamp, $user);
         if ($rev->userCan(Revision::DELETED_TEXT, $user)) {
             $d = Linker::linkKnown($page, htmlspecialchars($date), ['class' => 'mw-changeslist-date'], ['oldid' => intval($row->rev_id)]);
         } else {
             $d = htmlspecialchars($date);
         }
         if ($rev->isDeleted(Revision::DELETED_TEXT)) {
             $d = '<span class="history-deleted">' . $d . '</span>';
         }
         # Show user names for /newbies as there may be different users.
         # Note that we already excluded rows with hidden user names.
         if ($this->contribs == 'newbie') {
             $userlink = ' . . ' . $lang->getDirMark() . Linker::userLink($rev->getUser(), $rev->getUserText());
             $userlink .= ' ' . $this->msg('parentheses')->rawParams(Linker::userTalkLink($rev->getUser(), $rev->getUserText()))->escaped() . ' ';
         } else {
             $userlink = '';
         }
         $flags = [];
         if ($rev->getParentId() === 0) {
             $flags[] = ChangesList::flag('newpage');
         }
         if ($rev->isMinor()) {
             $flags[] = ChangesList::flag('minor');
         }
         $del = Linker::getRevDeleteLink($user, $rev, $page);
         if ($del !== '') {
             $del .= ' ';
         }
//.........这里部分代码省略.........

function onDifferenceEngineNewHeader($differenceEngine, &$newHeader, $formattedRevisionTools, $nextlink, $rollback, $newminor, $diffOnly, $rdel, $unhide)
{
    global $wgLanguageCode, $wgTitle;
    $user = $differenceEngine->getUser();
    $newRevisionHeader = $differenceEngine->getRevisionHeader($differenceEngine->mNewRev, 'complete', 'new') . ' ' . implode(' ', $formattedRevisionTools);
    $newDaysAgo = wfTimeAgo($differenceEngine->mNewRev->getTimestamp());
    //INTL: Avatar database data doesn't exist for sites other than English
    if ($wgLanguageCode == 'en') {
        $av = '<img src="' . Avatar::getAvatarURL($differenceEngine->mNewRev->getUserText()) . '" class="diff_avatar" />';
    }
    $thumbsHtml = "";
    $thumbHeader = "";
    $th_diff_div = "";
    if ($user->getId() != 0 && $wgTitle->getText() != "RCPatrol" && $wgTitle->getText() != "RCPatrolGuts" && $differenceEngine->mNewRev->getTitle()->getNamespace() == NS_MAIN) {
        $oldId = $differenceEngine->mNewRev->getPrevious();
        $oldId = $oldId ? $oldId->getId() : -1;
        // Only show thumbs up for diffs that look back one revision
        if (class_exists('ThumbsUp')) {
            if ($oldId == -1 || $differenceEngine->mOldRev && $oldId == $differenceEngine->mOldRev->getId()) {
                $params = array('title' => $differenceEngine->mNewRev->getTitle(), 'new' => $differenceEngine->mNewid, 'old' => $oldId, 'vandal' => 0);
                $thumbsHtml = ThumbsUp::getThumbsUpButton($params, true);
                $th_diff_div = 'class="th_diff_div"';
            }
        }
    }
    $newHeader = '<div id="mw-diff-ntitle1" ' . $th_diff_div . '><h4 ' . $thumbHeader . '>' . $newRevisionHeader . $nextlink . '</h4></div>' . '<div id="mw-diff-ntitle2">' . $av . $thumbsHtml . '<div id="mw-diff-oinfo">' . Linker::revUserTools($differenceEngine->mNewRev, !$unhide) . " {$rollback} " . '<br /><div id="mw-diff-ndaysago">' . $newDaysAgo . '</div>' . "</div>" . '<div id="mw-diff-ntitle4">' . $differenceEngine->markPatrolledLink() . '</div>' . "</div>" . '<div id="mw-diff-ntitle3" class="rccomment">' . $newminor . Linker::revComment($differenceEngine->mNewRev, !$diffOnly, !$unhide) . $rdel . '</div>';
    return true;
}

 private function formatRevisionRow($row, $earliestLiveTime, $remaining)
 {
     $rev = Revision::newFromArchiveRow($row, array('page' => $this->mTargetObj->getArticleId()));
     $stxt = '';
     $ts = wfTimestamp(TS_MW, $row->ar_timestamp);
     // Build checkboxen...
     if ($this->mAllowed) {
         if ($this->mInvert) {
             if (in_array($ts, $this->mTargetTimestamp)) {
                 $checkBox = Xml::check("ts{$ts}");
             } else {
                 $checkBox = Xml::check("ts{$ts}", true);
             }
         } else {
             $checkBox = Xml::check("ts{$ts}");
         }
     } else {
         $checkBox = '';
     }
     $user = $this->getUser();
     // Build page & diff links...
     if ($this->mCanView) {
         $titleObj = $this->getTitle();
         # Last link
         if (!$rev->userCan(Revision::DELETED_TEXT, $this->getUser())) {
             $pageLink = htmlspecialchars($this->getLanguage()->userTimeAndDate($ts, $user));
             $last = $this->msg('diff')->escaped();
         } elseif ($remaining > 0 || $earliestLiveTime && $ts > $earliestLiveTime) {
             $pageLink = $this->getPageLink($rev, $titleObj, $ts);
             $last = Linker::linkKnown($titleObj, $this->msg('diff')->escaped(), array(), array('target' => $this->mTargetObj->getPrefixedText(), 'timestamp' => $ts, 'diff' => 'prev'));
         } else {
             $pageLink = $this->getPageLink($rev, $titleObj, $ts);
             $last = $this->msg('diff')->escaped();
         }
     } else {
         $pageLink = htmlspecialchars($this->getLanguage()->userTimeAndDate($ts, $user));
         $last = $this->msg('diff')->escaped();
     }
     // User links
     $userLink = Linker::revUserTools($rev);
     // Revision text size
     $size = $row->ar_len;
     if (!is_null($size)) {
         $stxt = Linker::formatRevisionSize($size);
     }
     // Edit summary
     $comment = Linker::revComment($rev);
     // Revision delete links
     $revdlink = Linker::getRevDeleteLink($user, $rev, $this->mTargetObj);
     return "<li>{$checkBox} {$revdlink} ({$last}) {$pageLink} . . {$userLink} {$stxt} {$comment}</li>";
 }

 public static function contributionsLineEndingProcess(ContribsPager &$contribsPager, &$ret, $row)
 {
     wfProfileIn(__METHOD__);
     $rev = new Revision($row);
     $page = $rev->getTitle();
     $page->resetArticleId($row->rev_page);
     $wfMsgOptsBase = self::getMessageOptions(null, $row);
     $isThread = $wfMsgOptsBase['isThread'];
     $isNew = $wfMsgOptsBase['isNew'];
     // Don't show useless link to people who cannot hide revisions
     $del = Linker::getRevDeleteLink($contribsPager->getUser(), $rev, $page);
     if ($del !== '') {
         $del .= ' ';
     } else {
         $del = '';
     }
     // VOLDEV-40: remove html messages
     $ret = $del;
     $ret .= Linker::linkKnown($page, $contribsPager->getLanguage()->userTimeAndDate($row->rev_timestamp, $contribsPager->getUser()), [], ['oldid' => $row->rev_id]) . ' (';
     if ($isNew) {
         $ret .= $contribsPager->msg('diff')->escaped();
     } else {
         $ret .= Linker::linkKnown($page, $contribsPager->msg('diff')->escaped(), [], ['diff' => 'prev', 'oldid' => $row->rev_id]);
     }
     $wallMessage = new WallMessage($page);
     $threadId = $wallMessage->getMessagePageId();
     $threadTitle = Title::newFromText($threadId, NS_USER_WALL_MESSAGE);
     $ret .= ' | ' . Linker::linkKnown($threadTitle, $contribsPager->msg('hist')->escaped(), [], ['action' => 'history']) . ') ';
     if ($isThread && $isNew) {
         $ret .= ChangesList::flag('newpage') . ' ';
     }
     if (MWNamespace::getSubject($row->page_namespace) === NS_WIKIA_FORUM_BOARD && empty($wfMsgOptsBase['articleTitleVal'])) {
         $wfMsgOptsBase['articleTitleTxt'] = $contribsPager->msg('forum-recentchanges-deleted-reply-title')->text();
     }
     $prefix = MWNamespace::getSubject($row->page_namespace) === NS_WIKIA_FORUM_BOARD ? 'forum' : 'wall';
     $ret .= $contribsPager->msg($prefix . '-contributions-line')->params($wfMsgOptsBase['articleTitle'])->rawParams(htmlspecialchars($wfMsgOptsBase['articleTitleTxt']))->params($wfMsgOptsBase['wallTitleTxt'], $wfMsgOptsBase['wallPageName'])->parse();
     if (!$isNew) {
         $summary = $rev->getComment();
         if (empty($summary)) {
             $msg = Linker::commentBlock($contribsPager->msg(static::getMessagePrefix($row->page_namespace) . '-edit')->inContentLanguage()->text());
         } else {
             $msg = Linker::revComment($rev, false, true);
         }
         $ret .= ' ' . $contribsPager->getLanguage()->getDirMark() . $msg;
     }
     wfProfileOut(__METHOD__);
     return true;
 }

 public function getHTML()
 {
     $difflink = $this->getDiffLink();
     $revlink = $this->getRevisionLink();
     $userlink = Linker::revUserLink($this->revision);
     $comment = Linker::revComment($this->revision);
     if ($this->isDeleted()) {
         $revlink = "<span class=\"history-deleted\">{$revlink}</span>";
     }
     return "<li>({$difflink}) {$revlink} {$userlink} {$comment}</li>";
 }

 /**
  * Format a row, providing the timestamp, links to the page/history, size, user links, and a comment
  *
  * @param $result Result row
  * @return String
  */
 public function formatRow($result)
 {
     # Revision deletion works on revisions, so we should cast one
     $row = array('comment' => $result->rc_comment, 'deleted' => $result->rc_deleted, 'user_text' => $result->rc_user_text, 'user' => $result->rc_user);
     $rev = new Revision($row);
     $classes = array();
     $lang = $this->getLanguage();
     $dm = $lang->getDirMark();
     $title = Title::newFromRow($result);
     $spanTime = Html::element('span', array('class' => 'mw-newpages-time'), $lang->timeanddate($result->rc_timestamp, true));
     $time = Linker::linkKnown($title, $spanTime, array(), array('oldid' => $result->rc_this_oldid), array());
     $query = array('redirect' => 'no');
     if ($this->patrollable($result)) {
         $query['rcid'] = $result->rc_id;
     }
     $plink = Linker::linkKnown($title, null, array('class' => 'mw-newpages-pagename'), $query, array('known'));
     $histLink = Linker::linkKnown($title, wfMsgHtml('hist'), array(), array('action' => 'history'));
     $hist = Html::rawElement('span', array('class' => 'mw-newpages-history'), wfMsg('parentheses', $histLink));
     $length = Html::element('span', array('class' => 'mw-newpages-length'), '[' . $this->msg('nbytes')->numParams($result->length)->text() . ']');
     $ulink = Linker::revUserTools($rev);
     $comment = Linker::revComment($rev);
     if ($this->patrollable($result)) {
         $classes[] = 'not-patrolled';
     }
     # Add a class for zero byte pages
     if ($result->length == 0) {
         $classes[] = 'mw-newpages-zero-byte-page';
     }
     # Tags, if any. check for including due to bug 23293
     if (!$this->including()) {
         list($tagDisplay, $newClasses) = ChangeTags::formatSummaryRow($result->ts_tags, 'newpages');
         $classes = array_merge($classes, $newClasses);
     } else {
         $tagDisplay = '';
     }
     $css = count($classes) ? ' class="' . implode(' ', $classes) . '"' : '';
     # Display the old title if the namespace has been changed
     $oldTitleText = '';
     if ($result->page_namespace !== $result->rc_namespace) {
         $oldTitleText = wfMessage('rc-old-title')->params(Title::makeTitle($result->rc_namespace, $result->rc_title)->getPrefixedText())->escaped();
     }
     return "<li{$css}>{$time} {$dm}{$plink} {$hist} {$dm}{$length} {$dm}{$ulink} {$comment} {$tagDisplay} {$oldTitleText}</li>\n";
 }

 function showDiffPage($diffOnly = false)
 {
     wfProfileIn(__METHOD__);
     # Allow frames except in certain special cases
     $out = $this->getOutput();
     $out->allowClickjacking();
     $out->setRobotPolicy('noindex,nofollow');
     if (!$this->loadRevisionData()) {
         $this->showMissingRevision();
         wfProfileOut(__METHOD__);
         return;
     }
     $user = $this->getUser();
     $permErrors = $this->mNewPage->getUserPermissionsErrors('read', $user);
     if ($this->mOldPage) {
         # mOldPage might not be set, see below.
         $permErrors = wfMergeErrorArrays($permErrors, $this->mOldPage->getUserPermissionsErrors('read', $user));
     }
     if (count($permErrors)) {
         wfProfileOut(__METHOD__);
         throw new PermissionsError('read', $permErrors);
     }
     # If external diffs are enabled both globally and for the user,
     # we'll use the application/x-external-editor interface to call
     # an external diff tool like kompare, kdiff3, etc.
     if (ExternalEdit::useExternalEngine($this->getContext(), 'diff')) {
         //TODO: come up with a good solution for non-text content here.
         //      at least, the content format needs to be passed to the client somehow.
         //      Currently, action=raw will just fail for non-text content.
         $urls = array('File' => array('Extension' => 'wiki', 'URL' => $this->mNewPage->getCanonicalURL(array('action' => 'raw', 'oldid' => $this->mOldid))), 'File2' => array('Extension' => 'wiki', 'URL' => $this->mNewPage->getCanonicalURL(array('action' => 'raw', 'oldid' => $this->mNewid))));
         $externalEditor = new ExternalEdit($this->getContext(), $urls);
         $externalEditor->execute();
         wfProfileOut(__METHOD__);
         return;
     }
     $rollback = '';
     $undoLink = '';
     $query = array();
     # Carry over 'diffonly' param via navigation links
     if ($diffOnly != $user->getBoolOption('diffonly')) {
         $query['diffonly'] = $diffOnly;
     }
     # Cascade unhide param in links for easy deletion browsing
     if ($this->unhide) {
         $query['unhide'] = 1;
     }
     # Check if one of the revisions is deleted/suppressed
     $deleted = $suppressed = false;
     $allowed = $this->mNewRev->userCan(Revision::DELETED_TEXT, $user);
     # mOldRev is false if the difference engine is called with a "vague" query for
     # a diff between a version V and its previous version V' AND the version V
     # is the first version of that article. In that case, V' does not exist.
     if ($this->mOldRev === false) {
         $out->setPageTitle($this->msg('difference-title', $this->mNewPage->getPrefixedText()));
         $samePage = true;
         $oldHeader = '';
     } else {
         wfRunHooks('DiffViewHeader', array($this, $this->mOldRev, $this->mNewRev));
         $sk = $this->getSkin();
         if (method_exists($sk, 'suppressQuickbar')) {
             $sk->suppressQuickbar();
         }
         if ($this->mNewPage->equals($this->mOldPage)) {
             $out->setPageTitle($this->msg('difference-title', $this->mNewPage->getPrefixedText()));
             $samePage = true;
         } else {
             $out->setPageTitle($this->msg('difference-title-multipage', $this->mOldPage->getPrefixedText(), $this->mNewPage->getPrefixedText()));
             $out->addSubtitle($this->msg('difference-multipage'));
             $samePage = false;
         }
         if ($samePage && $this->mNewPage->quickUserCan('edit', $user)) {
             if ($this->mNewRev->isCurrent() && $this->mNewPage->userCan('rollback', $user)) {
                 $out->preventClickjacking();
                 $rollback = '   ' . Linker::generateRollback($this->mNewRev, $this->getContext());
             }
             if (!$this->mOldRev->isDeleted(Revision::DELETED_TEXT) && !$this->mNewRev->isDeleted(Revision::DELETED_TEXT)) {
                 $undoLink = ' ' . $this->msg('parentheses')->rawParams(Html::element('a', array('href' => $this->mNewPage->getLocalUrl(array('action' => 'edit', 'undoafter' => $this->mOldid, 'undo' => $this->mNewid)), 'title' => Linker::titleAttrib('undo')), $this->msg('editundo')->text()))->escaped();
             }
         }
         # Make "previous revision link"
         if ($samePage && $this->mOldRev->getPrevious()) {
             $prevlink = Linker::linkKnown($this->mOldPage, $this->msg('previousdiff')->escaped(), array('id' => 'differences-prevlink'), array('diff' => 'prev', 'oldid' => $this->mOldid) + $query);
         } else {
             $prevlink = ' ';
         }
         if ($this->mOldRev->isMinor()) {
             $oldminor = ChangesList::flag('minor');
         } else {
             $oldminor = '';
         }
         $ldel = $this->revisionDeleteLink($this->mOldRev);
         $oldRevisionHeader = $this->getRevisionHeader($this->mOldRev, 'complete');
         $oldHeader = '<div id="mw-diff-otitle1"><strong>' . $oldRevisionHeader . '</strong></div>' . '<div id="mw-diff-otitle2">' . Linker::revUserTools($this->mOldRev, !$this->unhide) . '</div>' . '<div id="mw-diff-otitle3">' . $oldminor . Linker::revComment($this->mOldRev, !$diffOnly, !$this->unhide) . $ldel . '</div>' . '<div id="mw-diff-otitle4">' . $prevlink . '</div>';
         if ($this->mOldRev->isDeleted(Revision::DELETED_TEXT)) {
             $deleted = true;
             // old revisions text is hidden
             if ($this->mOldRev->isDeleted(Revision::DELETED_RESTRICTED)) {
                 $suppressed = true;
                 // also suppressed
             }
//.........这里部分代码省略.........

 /**
  * Returns a row from the history printout.
  *
  * @todo document some more, and maybe clean up the code (some params redundant?)
  *
  * @param $row Object: the database row corresponding to the previous line.
  * @param $next Mixed: the database row corresponding to the next line. (chronologically previous)
  * @param $notificationtimestamp
  * @param $latest Boolean: whether this row corresponds to the page's latest revision.
  * @param $firstInList Boolean: whether this row corresponds to the first displayed on this history page.
  * @return String: HTML output for the row
  */
 function historyLine($row, $next, $notificationtimestamp = false, $latest = false, $firstInList = false)
 {
     $rev = new Revision($row);
     $rev->setTitle($this->getTitle());
     if (is_object($next)) {
         $prevRev = new Revision($next);
         $prevRev->setTitle($this->getTitle());
     } else {
         $prevRev = null;
     }
     $curlink = $this->curLink($rev, $latest);
     $lastlink = $this->lastLink($rev, $next);
     $diffButtons = $this->diffButtons($rev, $firstInList);
     $histLinks = Html::rawElement('span', array('class' => 'mw-history-histlinks'), '(' . $curlink . $this->historyPage->message['pipe-separator'] . $lastlink . ') ');
     $s = $histLinks . $diffButtons;
     $link = $this->revLink($rev);
     $classes = array();
     $del = '';
     $user = $this->getUser();
     // Show checkboxes for each revision
     if ($user->isAllowed('deleterevision')) {
         $this->preventClickjacking();
         // If revision was hidden from sysops, disable the checkbox
         if (!$rev->userCan(Revision::DELETED_RESTRICTED, $user)) {
             $del = Xml::check('deleterevisions', false, array('disabled' => 'disabled'));
             // Otherwise, enable the checkbox...
         } else {
             $del = Xml::check('showhiderevisions', false, array('name' => 'ids[' . $rev->getId() . ']'));
         }
         // User can only view deleted revisions...
     } elseif ($rev->getVisibility() && $user->isAllowed('deletedhistory')) {
         // If revision was hidden from sysops, disable the link
         if (!$rev->userCan(Revision::DELETED_RESTRICTED, $user)) {
             $cdel = Linker::revDeleteLinkDisabled(false);
             // Otherwise, show the link...
         } else {
             $query = array('type' => 'revision', 'target' => $this->getTitle()->getPrefixedDbkey(), 'ids' => $rev->getId());
             $del .= Linker::revDeleteLink($query, $rev->isDeleted(Revision::DELETED_RESTRICTED), false);
         }
     }
     if ($del) {
         $s .= " {$del} ";
     }
     $lang = $this->getLanguage();
     $dirmark = $lang->getDirMark();
     $s .= " {$link}";
     $s .= $dirmark;
     $s .= " <span class='history-user'>" . Linker::revUserTools($rev, true) . "</span>";
     $s .= $dirmark;
     if ($rev->isMinor()) {
         $s .= ' ' . ChangesList::flag('minor');
     }
     # Size is always public data
     $prevSize = $prevRev ? $prevRev->getSize() : 0;
     $sDiff = ChangesList::showCharacterDifference($prevSize, $rev->getSize());
     $fSize = Linker::formatRevisionSize($rev->getSize());
     $s .= " . . {$fSize} {$sDiff} . . ";
     $s .= Linker::revComment($rev, false, true);
     if ($notificationtimestamp && $row->rev_timestamp >= $notificationtimestamp) {
         $s .= ' <span class="updatedmarker">' . $this->msg('updatedmarker')->escaped() . '</span>';
     }
     $tools = array();
     # Rollback and undo links
     if ($prevRev && !count($this->getTitle()->getUserPermissionsErrors('edit', $this->getUser()))) {
         if ($latest && !count($this->getTitle()->getUserPermissionsErrors('rollback', $this->getUser()))) {
             $this->preventClickjacking();
             $tools[] = '<span class="mw-rollback-link">' . Linker::buildRollbackLink($rev) . '</span>';
         }
         if (!$rev->isDeleted(Revision::DELETED_TEXT) && !$prevRev->isDeleted(Revision::DELETED_TEXT)) {
             # Create undo tooltip for the first (=latest) line only
             $undoTooltip = $latest ? array('title' => $this->msg('tooltip-undo')->text()) : array();
             $undolink = Linker::linkKnown($this->getTitle(), $this->msg('editundo')->escaped(), $undoTooltip, array('action' => 'edit', 'undoafter' => $prevRev->getId(), 'undo' => $rev->getId()));
             $tools[] = "<span class=\"mw-history-undo\">{$undolink}</span>";
         }
     }
     if ($tools) {
         $s .= ' (' . $lang->pipeList($tools) . ')';
     }
     # Tags
     list($tagSummary, $newClasses) = ChangeTags::formatSummaryRow($row->ts_tags, 'history');
     $classes = array_merge($classes, $newClasses);
     $s .= " {$tagSummary}";
     wfRunHooks('PageHistoryLineEnding', array($this, &$row, &$s, &$classes));
     $attribs = array();
     if ($classes) {
         $attribs['class'] = implode(' ', $classes);
     }
     return Xml::tags('li', $attribs, $s) . "\n";
//.........这里部分代码省略.........