%PDF-
%PDF-
Mini Shell
Mini Shell
<?php
/**
* Paginate
*
* @package WP Grid Builder
* @author Loïc Blascos
* @copyright 2019-2021 Loïc Blascos
*/
namespace WP_Grid_Builder\Includes;
// Exit if accessed directly.
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
/**
* Handle custom pagination
*
* @class WP_Grid_Builder\Includes\Paginate
* @since 1.0.0
*/
final class Paginate {
/**
* Previous page number
*
* @since 1.0.0
* @access private
* @var integer
*/
private $prev_page = 1;
/**
* Initialize
*
* @since 1.0.0
* @access public
*
* @param array $args Holds pagination arguments.
*/
public function __construct( $args ) {
$this->extend( $args );
$this->normalize();
if ( $this->total > 1 ) {
$this->render();
}
}
/**
* Extend arguments
*
* @since 1.0.0
* @access public
*
* @param array $args Holds pagination arguments.
*/
public function extend( $args ) {
$defaults = [
'base' => '',
'format' => '',
'total' => 1,
'current' => 1,
'show_all' => false,
'prev_next' => true,
'prev_text' => __( '« Previous', 'wp-grid-builder' ),
'next_text' => __( 'Next »', 'wp-grid-builder' ),
'dots_page' => __( '…', 'wp-grid-builder' ),
'end_size' => 1,
'mid_size' => 2,
'classes' => [
'page' => 'wpgb-admin-page',
'dots' => 'wpgb-dots-page',
'current' => 'wpgb-current-page',
'holder' => 'wpgb-admin-pagination',
],
];
foreach ( $defaults as $key => $value ) {
$this->{$key} = isset( $args[ $key ] ) ? $args[ $key ] : $value;
}
}
/**
* Normalize numbers
*
* @since 1.0.0
* @access public
*/
public function normalize() {
$this->total = (int) $this->total;
$this->current = max( 1, min( $this->total, (int) $this->current ) );
$this->mid_size = max( 1, (int) $this->mid_size );
$this->end_size = max( 1, (int) $this->end_size );
}
/**
* Build and output pagination
*
* @since 1.0.0
* @access public
*/
public function render() {
$this->start();
$this->prev();
if ( $this->show_all || $this->total <= $this->end_size * 2 ) {
$this->loop(
[
'from' => 1,
'to' => $this->total,
]
);
} else {
$this->render_bounds();
}
$this->next();
$this->end();
}
/**
* Render each bound
*
* @since 1.0.0
* @access public
*/
public function render_bounds() {
foreach ( [ 'start', 'middle', 'end' ] as $bound ) {
$steps = $this->get_steps( $bound );
// Add dots if there is a gap with previous page.
if ( $steps['from'] - $this->prev_page > 1 ) {
$this->dots();
}
$this->loop( $steps );
// Set previous page number.
$this->prev_page = $steps['to'];
}
}
/**
* Get pagination steps
*
* @since 1.0.0
* @access public
*
* @param string $bound Steps bound position.
* @return array
*/
public function get_steps( $bound ) {
switch ( $bound ) {
case 'start':
return [
'from' => 1,
'to' => $this->end_size,
];
case 'middle':
return [
'from' => max( $this->end_size + 1, $this->current - $this->mid_size ),
'to' => min( $this->total - $this->end_size, $this->current + $this->mid_size ),
];
default:
return [
'from' => $this->total - $this->end_size + 1,
'to' => $this->total,
];
}
}
/**
* Loop throught pages
*
* @since 1.0.0
* @access public
*
* @param array $steps From -> to steps.
*/
public function loop( $steps ) {
for ( $i = $steps['from']; $i <= $steps['to']; $i++ ) {
$this->page( $i, $i );
}
}
/**
* Pagination start
*
* @since 1.0.0
* @access public
*/
public function start() {
echo '<ul class="' . sanitize_html_class( $this->classes['holder'] ) . '">';
}
/**
* Pagination end
*
* @since 1.0.0
* @access public
*/
public function end() {
echo '</ul>';
}
/**
* Render prev button
*
* @since 1.0.0
* @access public
*/
public function prev() {
if ( ! $this->prev_next || 1 === $this->current ) {
return;
}
$this->page( $this->current - 1, $this->prev_text );
}
/**
* Render next button
*
* @since 1.0.0
* @access public
*/
public function next() {
$total = $this->total;
$current = $this->current;
if ( ! $this->prev_next || $this->current === $this->total ) {
return;
}
$this->page( $this->current + 1, $this->next_text );
}
/**
* Render dots
*
* @since 1.0.0
* @access public
*/
public function dots() {
if ( empty( $this->dots_page ) ) {
return;
}
$this->page( false, $this->dots_page );
}
/**
* Render page
*
* @since 1.0.0
* @access public
*
* @param integer $number Page number.
* @param string $text Page text content.
*/
public function page( $number = '', $text = '' ) {
/* translators: %d: Page number */
$aria_label = sprintf( __( 'Goto Page %d', 'wp-grid-builder' ), $number );
$page_format = '<li class="%1$s"%3$s%4$s%5$s>%7$s</li>';
$is_selected = $this->current === $number;
// Add link if available.
if ( $number && ! empty( $this->base ) && ! empty( $this->format ) ) {
$page_format = '<li class="%1$s"><a href="%6$s"%3$s%4$s%5$s>%7$s</a></li>';
} elseif ( false === $number ) {
$page_format = '<li class="%1$s"><span class="%2$s">%7$s</span></li>';
}
if ( $is_selected ) {
/* translators: %d: Page number */
$aria_label = sprintf( __( 'Current Page, Page %d', 'wp-grid-builder' ), $number );
}
printf(
$page_format,
sanitize_html_class( $this->classes['page'] ),
sanitize_html_class( $this->classes['dots'] ),
( $is_selected ? ' aria-current="true"' : '' ),
( ! empty( $number ) ? ' aria-label="' . esc_attr( $aria_label ) . '"' : '' ),
( ! empty( $number ) ? ' data-page="' . esc_attr( $number ) . '"' : '' ),
esc_url( $this->base . $this->format . '=' . $number ),
esc_html( $text )
);
}
}
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