changeslist.php

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			$clink = '(' . $this->skin->makeKnownLinkObj( $rc->getTitle(), $logname ) . ')';
		} elseif( $rc->unpatrolled && $rc_type == RC_NEW ) {
			# Unpatrolled new page, give rc_id in query
			$clink = $this->skin->makeKnownLinkObj( $rc->getTitle(), '', "rcid={$rc_id}" );
		} else {
			$clink = $this->skin->makeKnownLinkObj( $rc->getTitle(), '' );
		}

		$time = $wgContLang->time( $rc_timestamp, true, true );
		$rc->watched = $watched;
		$rc->link = $clink;
		$rc->timestamp = $time;
		$rc->numberofWatchingusers = $baseRC->numberofWatchingusers;

		# Make "cur" and "diff" links
		if( $rc->unpatrolled ) {
			$rcIdQuery = "&rcid={$rc_id}";
		} else {
			$rcIdQuery = '';
		}
		$querycur = $curIdEq."&diff=0&oldid=$rc_this_oldid";
		$querydiff = $curIdEq."&diff=$rc_this_oldid&oldid=$rc_last_oldid$rcIdQuery";
		$aprops = ' tabindex="'.$baseRC->counter.'"';
		$curLink = $this->skin->makeKnownLinkObj( $rc->getTitle(), $this->message['cur'], $querycur, '' ,'', $aprops );
		if( $rc_type == RC_NEW || $rc_type == RC_LOG || $rc_type == RC_MOVE || $rc_type == RC_MOVE_OVER_REDIRECT ) {
			if( $rc_type != RC_NEW ) {
				$curLink = $this->message['cur'];
			}
			$diffLink = $this->message['diff'];
		} else {
			$diffLink = $this->skin->makeKnownLinkObj( $rc->getTitle(), $this->message['diff'], $querydiff, '' ,'', $aprops );
		}

		# Make "last" link
		if( $rc_last_oldid == 0 || $rc_type == RC_LOG || $rc_type == RC_MOVE || $rc_type == RC_MOVE_OVER_REDIRECT ) {
			$lastLink = $this->message['last'];
		} else {
			$lastLink = $this->skin->makeKnownLinkObj( $rc->getTitle(), $this->message['last'],
			  $curIdEq.'&diff='.$rc_this_oldid.'&oldid='.$rc_last_oldid . $rcIdQuery );
		}

		$rc->userlink = $this->skin->userLink( $rc_user, $rc_user_text );

		$rc->lastlink = $lastLink;
		$rc->curlink  = $curLink;
		$rc->difflink = $diffLink;

		$rc->usertalklink = $this->skin->userToolLinks( $rc_user, $rc_user_text );

		# Put accumulated information into the cache, for later display
		# Page moves go on their own line
		$title = $rc->getTitle();
		$secureName = $title->getPrefixedDBkey();
		if( $rc_type == RC_MOVE || $rc_type == RC_MOVE_OVER_REDIRECT ) {
			# Use an @ character to prevent collision with page names
			$this->rc_cache['@@' . ($this->rcMoveIndex++)] = array($rc);
		} else {
			if( !isset ( $this->rc_cache[$secureName] ) ) {
				$this->rc_cache[$secureName] = array();
			}
			array_push( $this->rc_cache[$secureName], $rc );
		}
		return $ret;
	}

	/**
	 * Enhanced RC group
	 */
	function recentChangesBlockGroup( $block ) {
		$r = '';

		# Collate list of users
		$isnew = false;
		$unpatrolled = false;
		$userlinks = array();
		foreach( $block as $rcObj ) {
			$oldid = $rcObj->mAttribs['rc_last_oldid'];
			$newid = $rcObj->mAttribs['rc_this_oldid'];
			if( $rcObj->mAttribs['rc_new'] ) {
				$isnew = true;
			}
			$u = $rcObj->userlink;
			if( !isset( $userlinks[$u] ) ) {
				$userlinks[$u] = 0;
			}
			if( $rcObj->unpatrolled ) {
				$unpatrolled = true;
			}
			$bot = $rcObj->mAttribs['rc_bot'];
			$userlinks[$u]++;
		}

		# Sort the list and convert to text
		krsort( $userlinks );
		asort( $userlinks );
		$users = array();
		foreach( $userlinks as $userlink => $count) {
			$text = $userlink;
			if( $count > 1 ) {
				$text .= ' ('.$count.'×)';
			}
			array_push( $users, $text );
		}

		$users = ' <span class="changedby">['.implode('; ',$users).']</span>';

		# Arrow
		$rci = 'RCI'.$this->rcCacheIndex;
		$rcl = 'RCL'.$this->rcCacheIndex;
		$rcm = 'RCM'.$this->rcCacheIndex;
		$toggleLink = "javascript:toggleVisibility('$rci','$rcm','$rcl')";
		$tl  = '<span id="'.$rcm.'"><a href="'.$toggleLink.'">' . $this->sideArrow() . '</a></span>';
		$tl .= '<span id="'.$rcl.'" style="display:none"><a href="'.$toggleLink.'">' . $this->downArrow() . '</a></span>';
		$r .= $tl;

		# Main line
		$r .= '<tt>';
		$r .= $this->recentChangesFlags( $isnew, false, $unpatrolled, '&nbsp;', $bot );

		# Timestamp
		$r .= ' '.$block[0]->timestamp.' ';
		$r .= '</tt>';

		# Article link
		$r .= $this->maybeWatchedLink( $block[0]->link, $block[0]->watched );

		$curIdEq = 'curid=' . $block[0]->mAttribs['rc_cur_id'];
		$currentRevision = $block[0]->mAttribs['rc_this_oldid'];
		if( $block[0]->mAttribs['rc_type'] != RC_LOG ) {
			# Changes
			$r .= ' ('.count($block).' ';
			if( $isnew ) {
				$r .= $this->message['changes'];
			} else {
				$r .= $this->skin->makeKnownLinkObj( $block[0]->getTitle(),
					$this->message['changes'], $curIdEq."&diff=$currentRevision&oldid=$oldid" );
			}
			$r .= '; ';

			# History
			$r .= $this->skin->makeKnownLinkObj( $block[0]->getTitle(),
				$this->message['history'], $curIdEq.'&action=history' );
			$r .= ')';
		}

		$r .= $users;

		if($block[0]->numberofWatchingusers > 0) {
			global $wgContLang;
			$r .= wfMsg('number_of_watching_users_RCview',  $wgContLang->formatNum($block[0]->numberofWatchingusers));
		}
		$r .= "<br />\n";

		# Sub-entries
		$r .= '<div id="'.$rci.'" style="display:none">';
		foreach( $block as $rcObj ) {
			# Get rc_xxxx variables
			extract( $rcObj->mAttribs );

			$r .= $this->spacerArrow();
			$r .= '<tt>&nbsp; &nbsp; &nbsp; &nbsp;';
			$r .= $this->recentChangesFlags( $rc_new, $rc_minor, $rcObj->unpatrolled, '&nbsp;', $rc_bot );
			$r .= '&nbsp;</tt>';

			$o = '';
			if( $rc_this_oldid != 0 ) {
				$o = 'oldid='.$rc_this_oldid;
			}
			if( $rc_type == RC_LOG ) {
				$link = $rcObj->timestamp;
			} else {
				$link = $this->skin->makeKnownLinkObj( $rcObj->getTitle(), $rcObj->timestamp, $curIdEq.'&'.$o );
			}
			$link = '<tt>'.$link.'</tt>';

			$r .= $link;
			$r .= ' (';
			$r .= $rcObj->curlink;
			$r .= '; ';
			$r .= $rcObj->lastlink;
			$r .= ') . . '.$rcObj->userlink;
			$r .= $rcObj->usertalklink;
			$r .= $this->skin->commentBlock( $rc_comment, $rcObj->getTitle() );
			$r .= "<br />\n";
		}
		$r .= "</div>\n";

		$this->rcCacheIndex++;
		return $r;
	}

	function maybeWatchedLink( $link, $watched=false ) {
		if( $watched ) {
			// FIXME: css style might be more appropriate
			return '<strong>' . $link . '</strong>';
		} else {
			return $link;
		}
	}

	/**
	 * Generate HTML for an arrow or placeholder graphic
	 * @param string $dir one of '', 'd', 'l', 'r'
	 * @param string $alt text
	 * @return string HTML <img> tag
	 * @access private
	 */
	function arrow( $dir, $alt='' ) {
		global $wgStylePath;
		$encUrl = htmlspecialchars( $wgStylePath . '/common/images/Arr_' . $dir . '.png' );
		$encAlt = htmlspecialchars( $alt );
		return "<img src=\"$encUrl\" width=\"12\" height=\"12\" alt=\"$encAlt\" />";
	}

	/**
	 * Generate HTML for a right- or left-facing arrow,
	 * depending on language direction.
	 * @return string HTML <img> tag
	 * @access private
	 */
	function sideArrow() {
		global $wgContLang;
		$dir = $wgContLang->isRTL() ? 'l' : 'r';
		return $this->arrow( $dir, '+' );
	}

	/**
	 * Generate HTML for a down-facing arrow
	 * depending on language direction.
	 * @return string HTML <img> tag
	 * @access private
	 */
	function downArrow() {
		return $this->arrow( 'd', '-' );
	}

	/**
	 * Generate HTML for a spacer image
	 * @return string HTML <img> tag
	 * @access private
	 */
	function spacerArrow() {
		return $this->arrow( '', ' ' );
	}

	/**
	 * Enhanced RC ungrouped line.
	 * @return string a HTML formated line (generated using $r)
	 */
	function recentChangesBlockLine( $rcObj ) {
		global $wgContLang;

		# Get rc_xxxx variables
		extract( $rcObj->mAttribs );
		$curIdEq = 'curid='.$rc_cur_id;

		$r = '';

		# Spacer image
		$r .= $this->spacerArrow();

		# Flag and Timestamp
		$r .= '<tt>';

		if( $rc_type == RC_MOVE || $rc_type == RC_MOVE_OVER_REDIRECT ) {
			$r .= '&nbsp;&nbsp;&nbsp;';
		} else {
			$r .= $this->recentChangesFlags( $rc_type == RC_NEW, $rc_minor, $rcObj->unpatrolled, '&nbsp;', $rc_bot );
		}
		$r .= ' '.$rcObj->timestamp.' </tt>';

		# Article link
		$r .= $this->maybeWatchedLink( $rcObj->link, $rcObj->watched );

		# Diff
		$r .= ' ('. $rcObj->difflink .'; ';

		# Hist
		$r .= $this->skin->makeKnownLinkObj( $rcObj->getTitle(), wfMsg( 'hist' ), $curIdEq.'&action=history' );

		# User/talk
		$r .= ') . . '.$rcObj->userlink . $rcObj->usertalklink;

		# Comment
		if( $rc_type != RC_MOVE && $rc_type != RC_MOVE_OVER_REDIRECT ) {
			$r .= $this->skin->commentBlock( $rc_comment, $rcObj->getTitle() );
		}

		if( $rcObj->numberofWatchingusers > 0 ) {
			$r .= wfMsg('number_of_watching_users_RCview', $wgContLang->formatNum($rcObj->numberofWatchingusers));
		}

		$r .= "<br />\n";
		return $r;
	}

	/**
	 * If enhanced RC is in use, this function takes the previously cached
	 * RC lines, arranges them, and outputs the HTML
	 */
	function recentChangesBlock() {
		if( count ( $this->rc_cache ) == 0 ) {
			return '';
		}
		$blockOut = '';
		foreach( $this->rc_cache as $secureName => $block ) {
			if( count( $block ) < 2 ) {
				$blockOut .= $this->recentChangesBlockLine( array_shift( $block ) );
			} else {
				$blockOut .= $this->recentChangesBlockGroup( $block );
			}
		}

		return '<div>'.$blockOut.'</div>';
	}

	/**
 	 * Returns text for the end of RC
	 * If enhanced RC is in use, returns pretty much all the text
	 */
	function endRecentChangesList() {
		return $this->recentChangesBlock() . parent::endRecentChangesList();
	}

}
?>