groups / lib / core / class-groups-pagination.php

class-groups-pagination.php in Groups – Memberships and Access Control 1.10.3, at lib/core/class-groups-pagination.php

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1	<?php
2	/**
3	* class-groups-pagination.php
4	*
5	* Copyright (c) "kento" Karim Rahimpur www.itthinx.com
6	*
7	* This code is released under the GNU General Public License.
8	* See COPYRIGHT.txt and LICENSE.txt.
9	*
10	* This code is distributed in the hope that it will be useful,
11	* but WITHOUT ANY WARRANTY; without even the implied warranty of
12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13	* GNU General Public License for more details.
14	*
15	* This header and all notices must be kept intact.
16	*
17	* @author Karim Rahimpur
18	* @package groups
19	* @since groups 1.0.0
20	*/
21
22	if ( !defined( 'ABSPATH' ) ) {
23	exit;
24	}
25
26	/**
27	* Pagination based on WP_List_Table.
28	*/
29	class Groups_Pagination {
30
31	/**
32	*
33	* @param int $total_items how many items there are to display
34	* @param int $total_pages how many pages there are, normally leave set to null
35	* @param int $per_page how many results to show on each page
36	*/
37	function __construct( $total_items, $total_pages, $per_page ) {
38	$this->set_pagination_args(
39	array(
40	'total_items' => $total_items,
41	'total_pages' => $total_pages,
42	'per_page' => $per_page
43	)
44	);
45	}
46
47	/**
48	* Get the current page number
49	* @return int the current page number
50	*/
51	function get_pagenum() {
52	$pagenum = isset( $_REQUEST['paged'] ) ? absint( $_REQUEST['paged'] ) : 0;
53	if ( !isset( $_REQUEST['paged'] ) ) { // needed with rewritten page added
54	if ( preg_match( "/(\/page\/)(\d+)/", $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'], $matches ) ) {
55	$pagenum = absint( $matches[2] );
56	}
57	}
58
59	if( isset( $this->_pagination_args['total_pages'] ) && $pagenum > $this->_pagination_args['total_pages'] ) {
60	$pagenum = $this->_pagination_args['total_pages'];
61	}
62	return max( 1, $pagenum );
63	}
64
65	/**
66	* An internal method that sets all the necessary pagination arguments
67	*
68	* @param array $args An associative array with information about the pagination
69	* @access protected
70	*/
71	function set_pagination_args( $args ) {
72	$args = wp_parse_args( $args, array(
73	'total_items' => 0,
74	'total_pages' => 0,
75	'per_page' => 0,
76	) );
77
78	if ( !$args['total_pages'] && $args['per_page'] > 0 )
79	$args['total_pages'] = ceil( $args['total_items'] / $args['per_page'] );
80
81	$this->_pagination_args = $args;
82	}
83
84	/**
85	* Returns or displays the pagination.
86	* @param string $which where it's displayed
87	* @param boolean $echo displays if true, otherwise returns
88	*/
89	function pagination( $which, $echo = false ) {
90
91	if ( empty( $this->_pagination_args ) )
92	return;
93
94	extract( $this->_pagination_args );
95
96	$output = '<span class="displaying-num">' . sprintf( _n( '1 item', '%s items', $total_items ), number_format_i18n( $total_items ) ) . '</span>';
97
98	$current = $this->get_pagenum();
99
100	$current_url = ( is_ssl() ? 'https://' : 'http://' ) . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
101
102	$current_url = remove_query_arg( array( 'hotkeys_highlight_last', 'hotkeys_highlight_first' ), $current_url );
103
104	// needs to remove rewritten added page
105	$current_url = preg_replace( "/\/page\/\d+/", "", $current_url );
106
107	$page_links = array();
108
109	$disable_first = $disable_last = '';
110	if ( $current == 1 )
111	$disable_first = ' disabled';
112	if ( $current == $total_pages )
113	$disable_last = ' disabled';
114
115	$page_links[] = sprintf( "<a class='%s' title='%s' href='%s'>%s</a>",
116	'first-page' . $disable_first,
117	esc_attr__( 'Go to the first page' ),
118	esc_url( remove_query_arg( 'paged', $current_url ) ),
119	'«'
120	);
121
122	$page_links[] = sprintf( "<a class='%s' title='%s' href='%s'>%s</a>",
123	'prev-page' . $disable_first,
124	esc_attr__( 'Go to the previous page' ),
125	esc_url( add_query_arg( 'paged', max( 1, $current-1 ), $current_url ) ),
126	'&lsaquo;'
127	);
128
129	if ( 'bottom' == $which )
130	$html_current_page = $current;
131	else
132	$html_current_page = sprintf( "<input class='current-page' title='%s' type='text' name='%s' value='%s' size='%d' />",
133	esc_attr__( 'Current page' ),
134	esc_attr( 'paged' ),
135	$current,
136	strlen( $total_pages )
137	);
138
139	$html_total_pages = sprintf( "<span class='total-pages'>%s</span>", number_format_i18n( $total_pages ) );
140	$page_links[] = '<span class="paging-input">' . sprintf( _x( '%1$s of %2$s', 'paging' ), $html_current_page, $html_total_pages ) . '</span>';
141
142	$page_links[] = sprintf( "<a class='%s' title='%s' href='%s'>%s</a>",
143	'next-page' . $disable_last,
144	esc_attr__( 'Go to the next page' ),
145	esc_url( add_query_arg( 'paged', min( $total_pages, $current+1 ), $current_url ) ),
146	'&rsaquo;'
147	);
148
149	$page_links[] = sprintf( "<a class='%s' title='%s' href='%s'>%s</a>",
150	'last-page' . $disable_last,
151	esc_attr__( 'Go to the last page' ),
152	esc_url( add_query_arg( 'paged', $total_pages, $current_url ) ),
153	'»'
154	);
155
156	$output .= "\n" . join( "\n", $page_links );
157
158	$page_class = $total_pages < 2 ? ' one-page' : '';
159
160	$this->_pagination = "<div class='tablenav-pages{$page_class}'>$output</div>";
161
162	if ( $echo ) {
163	echo $this->_pagination;
164	} else {
165	return $this->_pagination;
166	}
167	}
168	}
169