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<?php
/**
* Efficient paging for SQL queries.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
* @ingroup Pager
*/
/**
* IndexPager with an alphabetic list and a formatted navigation bar
* @ingroup Pager
*/
abstract class AlphabeticPager extends IndexPager {
/**
* Shamelessly stolen bits from ReverseChronologicalPager,
* didn't want to do class magic as may be still revamped
*
* @return string HTML
*/
function getNavigationBar() {
if ( !$this->isNavigationBarShown() ) {
return '';
}
if ( isset( $this->mNavigationBar ) ) {
return $this->mNavigationBar;
}
$linkTexts = array(
'prev' => $this->msg( 'prevn' )->numParams( $this->mLimit )->escaped(),
'next' => $this->msg( 'nextn' )->numParams( $this->mLimit )->escaped(),
'first' => $this->msg( 'page_first' )->escaped(),
'last' => $this->msg( 'page_last' )->escaped()
);
$lang = $this->getLanguage();
$pagingLinks = $this->getPagingLinks( $linkTexts );
$limitLinks = $this->getLimitLinks();
$limits = $lang->pipeList( $limitLinks );
$this->mNavigationBar = $this->msg( 'parentheses' )->rawParams(
$lang->pipeList( array( $pagingLinks['first'],
$pagingLinks['last'] ) ) )->escaped() . " " .
$this->msg( 'viewprevnext' )->rawParams( $pagingLinks['prev'],
$pagingLinks['next'], $limits )->escaped();
if ( !is_array( $this->getIndexField() ) ) {
# Early return to avoid undue nesting
return $this->mNavigationBar;
}
$extra = '';
$first = true;
$msgs = $this->getOrderTypeMessages();
foreach ( array_keys( $msgs ) as $order ) {
if ( $first ) {
$first = false;
} else {
$extra .= $this->msg( 'pipe-separator' )->escaped();
}
if ( $order == $this->mOrderType ) {
$extra .= $this->msg( $msgs[$order] )->escaped();
} else {
$extra .= $this->makeLink(
$this->msg( $msgs[$order] )->escaped(),
array( 'order' => $order )
);
}
}
if ( $extra !== '' ) {
$extra = ' ' . $this->msg( 'parentheses' )->rawParams( $extra )->escaped();
$this->mNavigationBar .= $extra;
}
return $this->mNavigationBar;
}
/**
* If this supports multiple order type messages, give the message key for
* enabling each one in getNavigationBar. The return type is an associative
* array whose keys must exactly match the keys of the array returned
* by getIndexField(), and whose values are message keys.
*
* @return array
*/
protected function getOrderTypeMessages() {
return null;
}
}
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