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<?php
/**
* class-groups-pagination.php
*
* Copyright (c) "kento" Karim Rahimpur www.itthinx.com
*
* This code is released under the GNU General Public License.
* See COPYRIGHT.txt and LICENSE.txt.
*
* This code 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.
*
* This header and all notices must be kept intact.
*
* @author Karim Rahimpur
* @package groups
* @since groups 1.0.0
*/
if ( !defined( 'ABSPATH' ) ) {
exit;
}
/**
* Pagination based on WP_List_Table.
*/
class Groups_Pagination {
/**
* @var string
*/
private $_pagination = null;
/**
* @var array
*/
private $_pagination_args = null;
/**
*
* @param int $total_items how many items there are to display
* @param int $total_pages how many pages there are, normally leave set to null
* @param int $per_page how many results to show on each page
*/
public function __construct( $total_items, $total_pages, $per_page ) {
$this->set_pagination_args(
array(
'total_items' => $total_items,
'total_pages' => $total_pages,
'per_page' => $per_page
)
);
}
/**
* Get the current page number
*
* @return int the current page number
*/
public function get_pagenum() {
$pagenum = isset( $_REQUEST['paged'] ) ? absint( $_REQUEST['paged'] ) : 0;
if ( !isset( $_REQUEST['paged'] ) ) { // needed with rewritten page added
$matches = array();
if ( preg_match( "/(\/page\/)(\d+)/", $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'], $matches ) ) { // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized
$pagenum = absint( $matches[2] );
}
}
if( isset( $this->_pagination_args['total_pages'] ) && $pagenum > $this->_pagination_args['total_pages'] ) {
$pagenum = $this->_pagination_args['total_pages'];
}
return max( 1, $pagenum );
}
/**
* An internal method that sets all the necessary pagination arguments
*
* @param array $args An associative array with information about the pagination
*
* @access protected
*/
public function set_pagination_args( $args ) {
$args = wp_parse_args( $args, array(
'total_items' => 0,
'total_pages' => 0,
'per_page' => 0,
) );
if ( !$args['total_pages'] && $args['per_page'] > 0 )
$args['total_pages'] = ceil( $args['total_items'] / $args['per_page'] );
$this->_pagination_args = $args;
}
/**
* Returns or displays the pagination.
*
* @param string $which where it's displayed
* @param boolean $echo displays if true, otherwise returns
*
* @return string|null
*/
public function pagination( $which, $echo = false ) {
if ( empty( $this->_pagination_args ) ) {
return;
}
$total_items = isset( $this->_pagination_args['total_items'] ) ? $this->_pagination_args['total_items'] : 0;
$total_pages = isset( $this->_pagination_args['total_pages'] ) ? $this->_pagination_args['total_pages'] : 0;
/* translators: number of items */
$output = '<span class="displaying-num">' . sprintf( _n( '%s item', '%s items', $total_items, 'groups' ), number_format_i18n( $total_items ) ) . '</span>';
$current = $this->get_pagenum();
$current_url = ( is_ssl() ? 'https://' : 'http://' ) . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI']; // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized
$current_url = remove_query_arg( array( 'hotkeys_highlight_last', 'hotkeys_highlight_first' ), $current_url );
// needs to remove rewritten added page
$current_url = preg_replace( '/\/page\/\d+/', '', $current_url );
$page_links = array();
$disable_first = $disable_last = '';
if ( $current == 1 )
$disable_first = ' disabled';
if ( $current == $total_pages )
$disable_last = ' disabled';
$page_links[] = sprintf( '<a class="%s" title="%s" href="%s">%s</a>',
'button first-page' . $disable_first,
esc_attr__( 'Go to the first page', 'groups' ),
esc_url( remove_query_arg( 'paged', $current_url ) ),
'«'
);
$page_links[] = sprintf( '<a class="%s" title="%s" href="%s">%s</a>',
'button prev-page' . $disable_first,
esc_attr__( 'Go to the previous page', 'groups' ),
esc_url( add_query_arg( 'paged', max( 1, $current-1 ), $current_url ) ),
'‹'
);
if ( 'bottom' == $which )
$html_current_page = $current;
else
$html_current_page = sprintf( '<input class="current-page" title="%s" type="text" name="%s" value="%s" size="%d" />',
esc_attr__( 'Current page', 'groups' ),
esc_attr( 'paged' ),
$current,
strlen( $total_pages )
);
$html_total_pages = sprintf( '<span class="total-pages">%s</span>', number_format_i18n( $total_pages ) );
$page_links[] = '<span class="paging-input">' . sprintf( _x( '%1$s of %2$s', 'paging' ), $html_current_page, $html_total_pages ) . '</span>'; // phpcs:ignore WordPress.WP.I18n.MissingArgDomain, WordPress.WP.I18n.MissingTranslatorsComment
$page_links[] = sprintf( '<a class="%s" title="%s" href="%s">%s</a>',
'button next-page' . $disable_last,
esc_attr__( 'Go to the next page', 'groups' ),
esc_url( add_query_arg( 'paged', min( $total_pages, $current+1 ), $current_url ) ),
'›'
);
$page_links[] = sprintf( '<a class="%s" title="%s" href="%s">%s</a>',
'button last-page' . $disable_last,
esc_attr__( 'Go to the last page', 'groups' ),
esc_url( add_query_arg( 'paged', $total_pages, $current_url ) ),
'»'
);
$output .= "\n" . join( "\n", $page_links );
$page_class = $total_pages < 2 ? ' one-page' : '';
$this->_pagination = "<div class='tablenav-pages{$page_class}'>$output</div>";
if ( $echo ) {
echo $this->_pagination; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
} else {
return $this->_pagination;
}
}
}